EP4709613A2

EP4709613A2 - Canopy connecting structure of child carrier, child safety seat and child carrier

Info

Publication number: EP4709613A2
Application number: EP24725826.2A
Authority: EP
Inventors: Manqun Cheng; Guozhu ZENG
Original assignee: Wonderland Switzerland AG
Current assignee: Wonderland Switzerland AG
Priority date: 2023-05-11
Filing date: 2024-05-10
Publication date: 2026-03-18
Also published as: WO2024231540A3; TW202444595A; DE112024002028T5; WO2024231540A2; AU2024267226A1; TWI903495B; KR20260008794A

Abstract

The present application provides a canopy connecting structure of a child carrier, a child safety seat, and a child carrier. The child safety seat includes: a base; a seat body slidably connected to the base, wherein an angle of the seat body relative to the base changes with sliding of the seat body relative to the base; a driving rod disposed on the seat body; and a driving mechanism disposed on the base, wherein the driving mechanism being coupled to the driving rod and being capable of pushing the driving rod to move reciprocally, so as to drive the seat body to slide relative to the base, wherein the base is provided with a sliding rod, a sliding groove is formed in the seat body, the sliding rod can be inserted into the sliding groove, and the sliding rod can slide in the sliding groove to guide sliding of the seat body relative to the base.

Description

CANOPY CONNECTING STRUCTURE OF CHILD CARRIER, CHILD SAFETY SEAT AND CHILD CARRIER

TECHNICAL FIELD

[0001] This application relates to a canopy connecting structure of a child carrier, a child safety seat and a child carrier.

BACKGROUND

[0002] A child carrier (for example, a child safety seat or a child cart) is generally provided with a canopy, so as to avoid direct ray and foreign matter entering a seat body. The canopy may be manually expanded or folded to meet different needs of users.

[0003] In addition, to accommodate children of different sizes, the child safety seat is generally provided with an electric angle adjusting mechanism to adjust the angle of the child safety seat. Generally, an operating apparatus of the angle adjusting mechanism is disposed on the seat body or a base of the child safety seat, so as to facilitate operation. However, for a driver such as a parent, when driving a vehicle, it is difficult to touch the operating apparatus to adjust the angle of the seat. In addition, when the child safety seat rotates or when adjusting the angle of the seat, the wires may easily become entangled.

[0004] In addition, to accommodate seating needs of children of different ages, the child safety seat can be set up for both forward using mode and rearward using mode. Among them, children in a younger age group (such as 0 to 9 months) usually need to seat in the child safety seat in the rearward using mode to maximize the safety of the children. However, during use, due to negligence, improper use, or the like, a caregiver may mistakenly place a younger child into the child safety seat in a forward using mode, which is not conducive to playing a safety guarantee role of the child safety seat.

SUMMARY

[0005] According to one aspect, the present application provides a canopy connecting structure of a child carrier, including: a driving apparatus having a power output member; a canopy having an active bracket, wherein the active bracket is connected to the power output member; and a control apparatus being in signal connection with the driving apparatus, and configured to control the power output member to drive the active bracket to move, so that the canopy can be expanded or folded.

[0006] Further, the power output member has a rotation axis, and the power output member is configured to drive the active support to rotate around the rotation axis.

[0007] Further, the driving apparatus further includes an output gear, and the output gear is coaxially connected to the power output member; the output gear has a first end face teeth, the power output member has a second end face teeth, and the first end face teeth and the second end face teeth mesh with each other to allow the output gear to drive the power output member to rotate.

[0008] Further, the canopy connecting structure further includes an elastic member, and the elastic member exerts an elastic force to the power output member that causes the power output member to press against the output gear, so that the first end face teeth and the second end face teeth remain meshed with each other.

[0009] Further, when the power output member is subjected to a circumferential force from the outside, the power output member can rotate relative to the output gear and move in a direction away from the output gear, so that the first end face teeth and the second end face teeth can be disengaged from each other.

[0010] Further, at least one of the first end face teeth and the second end face teeth is disposed with an inclined part; and when the power output member is subjected to the circumferential force from the outside, the power output member can rotate relative to the output gear and move in the direction away from the output gear under an action of the inclined part.

[0011] Further, the output gear is coaxially connected to the power output member by a fastener; the fastener is provided with a restraining member, and the elastic member is interposed between the restraining member and the power output member.

[0012] Further, the power output member has a first stepped hole, and the power output member is sleeved on the fastener through the first stepped hole; the fastener has a first end away from the output gear, the restraining member is disposed near the first end of the fastener, and the first end of the fastener, the restraining member, and the elastic member are located inside the first stepped hole.

[0013] Further, the first stepped hole includes a first stepped part and a second stepped part, the first stepped part is closer to the restraining member than the second stepped part, the restraining member is configured to restrain an axial movement stroke of the first stepped part, and the elastic member is interposed between the restraining member part and the second stepped part.

[0014] Further, the restraining member has a second stepped hole, the restraining member is sleeved on the fastener through the second stepped hole, and the fastener has a first end located inside the second stepped hole.

[0015] Further, the canopy connecting structure further includes a mounting seat; the driving apparatus further includes a power source and a driving mechanism that are mounted on the mounting seat, the power source is in signal connection with the control apparatus, the driving mechanism includes the output gear, and the power source is drivingly connected to the driving mechanism.

[0016] Further, the canopy connecting structure further includes a position detecting apparatus, wherein the position detecting apparatus is in signal connection with the control apparatus and configured to send a position signal related to a moving position of the active bracket to the control apparatus; and when the active bracket moves to a predetermined position, the control apparatus control the driving apparatus to stop driving the active bracket.

[0017] Further, the position detecting apparatus includes a proximity switch, an optoelectronic sensor, a Hall sensor, or an encoder.

[0018] Further, the power output member has a rotation axis and an annular flange, the power output member is configured to be non-rotatably connected to the active bracket, and the annular flange is provided with at least two detecting ports in a circumferential direction; the position detecting apparatus cooperates with the at least two detecting ports to send the position signal.

[0019] Further, the control apparatus includes a control panel, and the control panel includes an operating button and/or a touchscreen; and/or the control apparatus includes a wireless communications module configured to communicate wirelessly with an external device, and the wireless communications module is configured to receive a canopy adjustment instruction sent by the external device.

[0020] According to another aspect, the present application provides a child carrier including a body, where the body is provided with the foregoing canopy connecting structure of the child carrier.

[0021] Further, the child carrier further includes a canopy, the active bracket of the canopy includes two first connecting parts, the canopy connecting structure includes at least one driving apparatus, and at least one of the two first connecting parts is connected to a power output member of the at least one driving apparatus.

[0022] Further, the canopy has an expanded state, a folded state, and at least one intermediate state between the expanded state and the folded state; and/or the active bracket is detachably connected to the power output member.

[0023] Further, the first connecting part is sleeved with the power output member, and a rotation restraining mechanism is disposed between the first connecting part and the power output member.

[0024] Further, the canopy further includes a positioning bracket and a tarpaulin, the positioning bracket includes two second connecting parts, the two second connecting parts are pivotally connected to the two first connecting parts, respectively, and the tarpaulin is respectively connected to the positioning bracket and the active bracket; and when the positioning bracket is mounted to the body, the positioning bracket is not relatively movable from the body, and the positioning bracket is removably connected to the body.

[0025] Further, the canopy further includes a tarpaulin, and the tarpaulin is connected to the active bracket and the body.

[0026] According to another aspect, the present application provides a child safety seat including: a driving apparatus having a power output member; a canopy connected to the seat body and having an active bracket, wherein the active bracket is connected to the power output member; and a control apparatus being in signal connection with the driving apparatus, and configured to control the power output member to drive the active bracket to move, so that the canopy can be expanded or folded, wherein the driving apparatus further includes an output gear, and the output gear is coaxially connected to the power output member; the output gear has a first end face teeth, the power output member has a second end face teeth, and the first end face teeth and the second end face teeth mesh with each other to allow the output gear to drive the power output member to rotate, wherein the canopy connecting structure further includes an elastic member, and the elastic member exerts an elastic force to the power output member that causes the power output member to press against the output gear, so that the first end face teeth and the second end face teeth remain meshed with each other; when the power output member is subjected to a circumferential force from the outside, the power output member can rotate relative to the output gear and move in a direction away from the output gear, so that the first end face teeth and the second end face teeth can be disengaged from each other, at least one of the first end face teeth and the second end face teeth is disposed with an inclined part; and when the power output member is subjected to the circumferential force from the outside, the power output member can rotate relative to the output gear and move in the direction away from the output gear under an action of the inclined part.

[0027] According to another aspect, the present application provides a child safety seat including: a base including a rotating member and a rotating connector; the rotating connector is fixedly connected to the base, and it is pivotably connected to the rotating member, so that the rotating member can rotate relative to the base; and a seat body slidably connected to the base, wherein an angle of the seat body relative to the base changes with sliding of the seat body relative to the base, the base has a base circuit board, and the seat body has a seat circuit board; the rotating connector is provided with an electrical slip ring; the base circuit board is electrically connected to the seat circuit board via the electrical slip ring; the seat circuit board is configured at a connection between a backrest section and a seat section of the seat body, and a cavity is formed between the seat circuit board and the rotating member; the electrical slip ring is configured so that the extension line through an axial center of the electric slip ring always intersects with the seat section of the seat body during sliding back and forth of the seat body relative to the base.

[0028] According to another aspect, the present application provides a child safety seat including: a base; a seat body slidably connected to the base, wherein an angle of the seat body relative to the base changes with sliding of the seat body relative to the base; a driving rod disposed on the seat body; and a driving mechanism disposed on the base, wherein the driving mechanism is coupled to the driving rod, and it is capable of pushing the driving rod to move reciprocally, so as to drive the seat body to slide relative to the base, wherein the base is provided with a sliding rod, a sliding groove is formed in the seat body, the sliding rod can be inserted into the sliding groove, and the sliding rod can slide in the sliding groove to guide sliding of the seat body relative to the base.

[0029] Further, the driving mechanism includes: a motor; a screw coupled to the motor; and a driving block sleeved on the screw and threaded to the screw, wherein the driving block is further pivotably connected to the driving rod, wherein the motor drives the screw to rotate, so that the driving block moves in a longitudinal direction of the screw, and a movement of the driving block in the longitudinal direction of the screw drives the seat body to slide relative to the base, so as to change the angle of the seat body; the driving mechanism further includes a bracket, the bracket is provided with a receiving slot, and the screw is rotatably disposed in the receiving slot; the motor is fixedly disposed on the bracket and is coupled to the screw, one end of the bracket is pivotally connected to the base, the other end of the bracket is a free end, and the free end is sleeved in a backrest of the seat body.

[0030] Further, the sliding groove is formed as an arc groove, the driving mechanism is pivotally connected to the base, and an extending direction of the driving mechanism relative to a pivotal shaft of the base is orthogonal to a movement direction in which the driving mechanism pushes the driving rod; and a stiffener extending in a vertical direction is disposed in the seat body, the sliding groove is disposed on the stiffener, the seat body and the sliding groove are integral parts, and an inner peripheral wall of the sliding groove is made of plastic, a reinforcing member is disposed on an outer side of the sliding groove, the reinforcing member is a sheet-like structure, and the reinforcing member has a through groove corresponding to a shape of the sliding groove, so that the sliding rod can slide in the through groove; two ends of the driving rod are fixedly connected to the reinforcing member.

[0031] Further, the base further includes a rotating member and a rotating connector; the rotating connector is fixedly connected to the base, and it is pivotably connected to the rotating member, so that the rotating member can rotate relative to the base; the base has a base circuit board, and the seat body has a seat circuit board; the rotating connector is provided with an electrical slip ring; the base circuit board is electrically connected to the seat circuit board via the electrical slip ring; the seat circuit board is configured at a connection between a backrest section and a seat section of the seat body, and a cavity is formed between the seat circuit board and the rotating member; the electrical slip ring is configured so that the extension line through an axial center of the electric slip ring always intersects with the seat section of the seat body during sliding back and forth of the seat body relative to the base.

[0032] Further, the driving mechanism is disposed at an end of the rotating member, and extends in a direction toward the backrest section of the seat body; and the seat circuit board is electrically connected to the driving mechanism; and the rotating connector is located in a middle of the rotating member; the seat circuit board is connected to the electrical slip ring via a second wire, and the seat circuit board is connected to the driving mechanism via a third wire; when an angle of the seat body relative to the base increases, the second wire is loosened, and the third wire is tightened; and when the angle of the seat body relative to the base is reduced, the second wire is tightened, and the third wire is loosened.

[0033] Further, the driving mechanism is pivotably connected to the rotating member.

[0034] Further, a connecting hole is disposed in the driving block, and the driving rod passes through the connecting hole, so that the driving block is connected to the seat body. [0035] Further, the motor includes an output shaft, and first teeth is disposed on an outer surface of the output shaft, a drive gear is fixedly disposed on the screw, and the drive gear has second teeth; the motor drives the screw to rotate by meshing the first teeth with the second teeth.

[0036] Further, a through hole with an internal thread is disposed in the driving block, the through hole is sleeved on the screw, and the internal thread engages the external thread of the screw, by means of meshing of the internal thread with the external thread, the rotation of the screw drives the driving block to move in a longitudinal direction of the screw.

[0037] Further, during pivoting of the bracket relative to the base, the angle between the longitudinal direction of the screw and the vertical direction is always an acute angle.

[0038] Further, the bracket is provided with a plurality of position sensors, the plurality of position sensors are disposed on the bracket at intervals in the longitudinal direction of the screw, the driving block is provided with a detection piece, the detection piece is a thin sheet extending from the driving block, and the detection sheet projects to the bracket, the position sensor is configured that when the driving block moves in the longitudinal direction of the screw to such an extent that the detection piece enters the sensing area of the position sensor , the position sensor sends an identification signal.

[0039] Further, the plurality of position sensors includes a first position sensor, a second position sensor, and a third position sensor, the first position sensor, the third position sensor, and the second position sensor are respectively disposed in positions that are corresponding to an upper extreme position, a lower extreme position, and an intermediate position between the upper extreme position and the lower extreme position of the motion stroke of the driving block of the bracket.

[0040] Further, a restraining member is disposed in the driving block, and the restraining member projects out of the driving block in a direction in which the driving block moves; and when the driving block reaches the upper extreme position or the lower extreme position of the motion stroke, the restraining member abuts against the bracket to prevent the driving block from moving in a direction away from the upper extreme position or the lower extreme position. [0041] Further, two opposite end parts of the receiving slot are respectively disposed with a first mounting groove and a second mounting groove, the screw is disposed in the receiving slot, and the driving block is fitted into the receiving slot and can move in a longitudinal direction of the receiving slot; a first supporting member and a second supporting member are disposed on opposite end parts of the screw, the first supporting member and the second supporting member are disposed in the first installation groove and the second mounting groove respectively, and the first supporting member and the second supporting member are adapted to rotate in the first mounting groove and the second mounting groove respectively.

[0042] Further, the sliding rod includes a first sliding rod and a second sliding rod, the rotating member is respectively pivotally connected to the first sliding rod and the second sliding rod, two opposite disposed sliding grooves form a first sliding groove group, and the other two opposite disposed sliding grooves form a second sliding groove group; the first sliding rod is inserted into the first sliding groove group, the second sliding rod is inserted into the second sliding groove group, the first sliding rod slides in the first sliding groove group, and the second sliding rod slides in the second sliding groove group.

[0043] Further, there is a gap between the rotating connector and the rotating member, and an upper housing of the base is rotatably held in the gap, the rotating member is rotatably disposed on the base by the rotating connecting member, an edge of the rotating connector has an annular flange, and the annular flange is slidably fitted in an annular groove of the upper housing of the base.

[0044] Further, the child seat further includes: a control mechanism disposed on the seat body and/or the base, and electrically connected to the driving mechanism, and an operation panel disposed on the base and electrically connected to the control mechanism, wherein the operation panel includes a control button configured to adjust an angle of the seat body; and the operation panel and the control mechanism are electrically connected via the electrical slip ring.

[0045] Further, the child safety seat further includes a remote control apparatus that is connected to the control mechanism by means of wireless communication; and the remote control apparatus is configured to send a control signal to the control mechanism, so that the control mechanism controls the driving mechanism to drive the seat body to slide relative to the base, so as to change the angle of the seat body.

[0046] Further, the seat circuit board is configured such that, during sliding forward and backward of the seat body relative to the base, a projection of the seat circuit board on the base always covers the electric slip ring.

[0047] According to another aspect, the present application provides a child carrier including: a base assembly configured to connect to a vehicle seat; and a seat assembly connected to the base assembly and capable of rotating between forward and backward using positions, wherein the base assembly is provided with a retaining recess, the seat assembly is provided with a retaining protrusion, and the retaining protrusion is rotatably disposed in the retaining recess, so that the seat assembly can rotate relative to the base assembly; a pair of restraining grooves are disposed on one of the retaining recess and the retaining protrusion, a stopping part is disposed on a front end of the restraining groove, and a guiding surface is disposed on a rear end of the restraining groove, a restraining member is disposed on the other of the retaining recess and the retaining protrusion, and the restraining member is movable between a locked position and an unlocked position, so as to lock or unlock with the restraining groove; when the restraining member is in the locked position and the restraining member is inserted into the restraining groove, the stopping part is adapted to prevent the restraining member from moving toward the stopping part, so as to restrain the seat assembly from rotating to the forward using position relative to the base assembly; and the guiding surface is adapted to guide the restraining member toward the guiding surface to allow the seat assembly to rotate to the backward using position relative to the base assembly.

[0048] Further, an inner wall of the retaining recess facing the restraining member includes a restraining wall, and the restraining groove is disposed in the restraining wall of the retaining recess; the restraining member is configured to pass through the retaining recess, and the restraining member is adapted to at least partially project out of the retaining protrusion to lock with the restraining groove; the restraining wall of the retaining recess is an inner peripheral surface or a bottom surface of the retaining recess, and/or the guiding surface is an inclined surface or an arc surface that extends from a bottom of the restraining groove to the restraining wall of the retaining recess; and when the restraining member is inserted into the restraining groove, the seat assembly is restrained to a lateral position between the forward using position and the backward using position.

[0049] Further, the child carrier further includes an operating assembly, wherein the operating assembly has an operating part and a driving surface, and the operating part is operatively disposed in the mounting seat, so as to drive the operating assembly to switch between a first position and a second position by the operating part; when the operating assembly is in the first position, the driving surface abuts against the restraining member, so as to restrain the restraining member to the unlocked position; and when the operating assembly is in the second position, the restraining member is allowed to switch from the unlocked position to the locked position.

[0050] Further, the child carrier further includes: an engaging pin slidably disposed on the retaining protrusion; and a first engaging hole and a second engaging hole formed on the retaining recess, wherein the engaging pin selectively engages with one of the first engaging hole and the second engaging hole; when the engaging pin is engaged with the first engaging hole, the seat assembly is locked in the forward using position; and when the engaging pin is engaged with the second engaging hole, the seat assembly is locked in a backward using position, wherein when the restraining member is inserted into the restraining groove, the seat assembly is unidirectionally locked in a lateral position between the forward and backward using positions; the retaining protrusion is provided with a flange part below the engaging pin. [0051] Further, the child carrier further includes a restraining reset member configured to bias the restraining member in a direction toward the locked position.

[0052] According to another aspect, the present application further provides an anti-misuse structure, which is used for a child carrier, where the child carrier includes a seat assembly and a base assembly, and the anti-misuse structure includes: a restraining groove disposed on the base assembly, wherein a stopping part is disposed at one end of the restraining groove, and a guiding surface is disposed at the other end of the restraining groove; a mounting seat disposed in the seat assembly and rotatably disposed in the base assembly; a restraining member movably disposed on the mounting seat and capable of switching between a locked position and an unlocked position; when the restraining member is in the locked position, the restraining member extends into the restraining groove, and the restraining member is adapted to be stopped by the stopping part, so as to restrain rotation of the seat assembly relative to the base assembly toward the stopping part, and the restraining member is adapted to exit the restraining groove by the guiding surface, so as to allow the seat assembly to rotate toward the guiding surface; and when the restraining member is in the unlocked position, the restraining member exits the restraining groove without restraining rotation of the seat assembly.

[0053] Further, a retaining recess is disposed in the base assembly, a retaining protrusion is disposed in the mounting seat, and the retaining protrusion is rotatably disposed in the retaining recess, an inner wall of the retaining recess facing the restraining member includes a restraining wall, the restraining groove is disposed in the restraining wall of the retaining recess, the restraining member is disposed at the retaining protrusion, and the restraining member is adapted to at least partially protrude from the retaining protrusion to lock with the restraining groove.

[0054] Further, the restraining wall of the retaining recess is an inner peripheral surface or a bottom surface of the retaining recess.

[0055] Further, the guiding surface is an inclined surface or a circular arc surface that extends from the bottom of the restraining groove to the restraining wall of the retaining recess.

[0056] Further, the seat assembly has a forward using position and a backward using position; when the restraining member is inserted into the restraining groove, the seat assembly is restrained to a lateral position between the forward using position and the backward using position.

[0057] Further, the anti-misuse structure further includes an operating assembly having an operating part and a driving surface, and the operating part is operably disposed in the mounting seat, so as to drive, by using the operating part, the operating assembly to switch between a first position and a second position, when the operating assembly is in the first position, the driving surface abuts against the restraining member, so as to restrain the restraining member to the unlocked position; and when the operating assembly is in the second position, the restraining member is allowed to switch from the unlocked position to the locked position.

[0058] Further, the driving surface is disposed to face the rotation axis of the mounting seat relative to the base assembly, one end of the driving surface is formed as a first driving end, and the other end of the driving surface is formed as a second driving end, where a distance between the first driving end and the rotation axis is less than a distance between the second driving end and the rotation axis; and when the operating member is in the first position, the restraining member abuts against the first driving end; and when the operating member moves from the first position to the second position, the restraining member is remote from the first driving end and close to the second driving end, or the restraining member is separated from the driving surface.

[0059] Further, the driving surface is disposed to face a rotation axis of the mounting seat relative to the base assembly, and the driving surface is a inclined surface or an arc surface; and when the operating member is in the first position, the restraining member abuts against the driving surface; and when the operating member is in the second position, the restraining member is separated from the driving surface.

[0060] Further, during switching of the operating assembly between the first position and the second position, the restraining member slides along the driving surface, so that the restraining member switches between an unlocked position and a locked position.

[0061] Further, the restraining member includes a restraining body and a driving protrusion, the restraining body is slidably disposed on the mounting seat, the driving protrusion is disposed on the restraining body in a direction parallel to a rotation axis direction of the mounting seat, and the driving protrusion is adapted to be pushed by the operating assembly and move the restraining body.

[0062] Further, the mounting seat is provided with a mounting part and an operating groove disposed through the mounting part, a side of the mounting part facing the rotation axis of the mounting seat is the inner side, and the inner side of the mounting part is a circular arc; the operating member is slidably disposed along the inner side, and the operating member has an operating part disposed in the operating groove to allow the operating part to drive the operating member to slide along the inner side.

[0063] Further, the anti-misuse structure further includes a positioning member, the positioning member includes a positioning member and a positioning spring, the positioning member is movably disposed in the mounting seat and has a positioning part, and the positioning spring is disposed between the positioning member and the mounting seat, so as to provide an elastic restoring force for the positioning member to extend the positioning part out of the mounting seat; and a first positioning recess and a second positioning recess are disposed in the operating assembly, a positioning protrusion is disposed between the first positioning recess and the second positioning recess, and the positioning protrusion continuously transitions with the first positioning recess and the second positioning recess; and the positioning part is adapted to cooperate with one of the first positioning recess and the second positioning recess, so as to selectively restrain the operating assembly to the first position or the second position.

[0064] Further, the anti-misuse structure further includes a restraining reset member, the restraining reset member is disposed between the restraining member and the mounting seat, and the restraining reset member is adapted to bias the restraining member so that the restraining member moves toward the locking position.

[0065] According to another aspect, the present application further provides a child carrier including: a base assembly; a seat assembly provided with a mounting seat rotatable relative to the base assembly; and the foregoing anti-misuse structure.

[0066] Further, the child carrier further includes an engaging mechanism, and the engaging mechanism includes: an engaging pin movably disposed in the seat assembly; a first engaging hole; and a second engaging hole; one of the first engaging hole and the second engaging hole is disposed in front of the base assembly, the other of the first engaging hole and the second engaging hole is disposed in rear of the base assembly, and the engaging pin selectively engages with one of the first engaging hole and the second engaging hole, so as to selectively lock the seat assembly in a forward or backward using position.

[0067] Further, the child carrier further includes an indicating mechanism, and the indicating mechanism includes: an indicating apparatus disposed in the base assembly and configured to indicate a position status of the seat assembly; a first switch electrically connected to the indicating apparatus and configured to detect whether the seat assembly is engaged in the forward using position; and a second switch electrically connected to the indicating apparatus and configured to detect whether the seat assembly is engaged in the backward using position. [0068] Further, the child carrier further includes a driving mechanism, the driving mechanism includes: a first driving assembly, wherein the first driving assembly is slidably disposed in the base assembly, at least a part of the first driving assembly can be inserted into the first engaging hole, and the first driving assembly is adapted to be pushed by the engaging pin to close the first switch; and a second driving assembly, wherein the second driving assembly is slidably disposed in the base assembly, at least a part of the second driving assembly can extend into the second engaging hole, and the second driving assembly is adapted to be pushed by the engaging pin to close the second switch.

[0069] Further, the first driving assembly includes: a first driving member movably disposed on the base assembly by the first fastening seat, and a first pushing member connected to the first driving member and moves with the first driving member to push the first switch to close, wherein the first pushing member is a spring or a spring plate.

[0070] Further, the base assembly includes a base body and a first fixing seat disposed on the base body, a first sliding groove is formed between the first fixing seat and the base body, the first switch is disposed on the first fixing seat, a first avoiding groove is disposed on a sidewall of the first sliding groove, the first driving member is disposed in the first sliding groove, the first pushing member is connected to the first driving member, and a part of the first pushing member projects out of the first sliding groove through the first avoiding groove, so as to push the first switch.

[0071] Further, the second driving assembly includes: a second driving member that is movably disposed on the base assembly by the second fixing seat, and a second pushing member connected to the second driving member and moved with the second driving member to push the second switch to close, wherein the second pushing member is a spring or a spring plate.

[0072] Further, the second switch is disposed on the second fixing seat, a second sliding groove is formed between the second fixing seat and the base assembly, a second avoiding groove is disposed on a sidewall of the second sliding groove, the second driving member is disposed in the second sliding groove, the second pushing member is connected to the second driving member, and a part of the second pushing member projects out of the second sliding groove through the second avoiding groove, so as to push the second switch.

BRIEF DESCRIPTION OF THE DRAWINGS

[0073] The accompanying drawings, which form a part hereof, serve to provide a further understanding of the application, and the illustrative embodiments of the application and the description thereof serve to explain the application, and are not to be construed as unduly limiting the application.

[0074] FIG. 1 illustrates a schematic side view of a child carrier (more specifically, a child safety seat) according to a first embodiment of this application, where the child carrier is applied with a canopy connecting structure according to an embodiment of this application, and the canopy is in an expanded state;

[0075] FIG. 2 illustrates another side view of the child carrier shown in FIG. 1, where the canopy is in a folded state;

[0076] FIG. 3 illustrates a perspective view of the child carrier shown in FIG. 2;

[0077] FIG. 4 illustrates a perspective view of the canopy shown in FIG. 2;

[0078] FIG. 5 illustrates an exploded view of an active bracket and a positioning bracket in the canopy shown in FIG. 4;

[0079] FIG. 6 illustrates a perspective view of the body shown in FIG. 1;

[0080] FIG. 7 illustrates a functional module diagram of a control system of the canopy connecting structure shown in FIG. 6;

[0081] FIGS. 8 and 9 illustrate perspective views from different perspectives of some components of the canopy connecting structure shown in FIG. 6;

[0082] FIGS. 10 and 11 illustrate exploded views from different perspectives of the components shown in FIG. 8 and FIG. 9;

[0083] FIG. 12 illustrates a sectional view taken along line A-A of FIG. 8, where a first end face teeth are engaged with a second end face teeth;

[0084] FIG. 13 illustrates a sectional view taken along line A-A of FIG. 8, where the first end face teeth and the second end face teeth are disengaged;

[0085] FIG. 14 illustrates a schematic side view of a child carrier according to a second embodiment of this application, where the child carrier has the canopy connecting structure according to an embodiment of this application, and the canopy is in an expanded state;

[0086] FIG. 15 illustrates another side view of the child carrier shown in FIG. 14, where the canopy is in a folded state;

[0087] FIG. 16 illustrates a schematic perspective view of a child safety seat according to a third embodiment of this application;

[0088] FIG. 17 illustrates a schematic side view of the child safety seat shown in FIG. 16, where the seat is in an upright state;

[0089] FIG. 18 illustrates a schematic side view of the child safety seat shown in FIG. 16, where the seat is in a lie-down state;

[0090] FIG. 19 illustrates a schematic perspective view of a base of the child safety seat shown in FIG. 16;

[0091] FIG. 20 illustrates a schematic perspective view of a rotating member of the base shown in FIG. 17 and FIG. 18;

[0092] FIG. 21 illustrates a schematic perspective view of a seat body shown in FIG. 16;

[0093] FIGS. 22 to 25 illustrate schematic views from different perspectives of a driving mechanism shown in FIG. 19, where a first cover plate and a second cover plate are removed in FIG. 24, and a bracket is removed in FIG. 25;

[0094] FIG. 26 illustrates another schematic perspective view of the seat body shown in FIG. 16;

[0095] FIG. 27 illustrates another schematic perspective view of the base shown in FIG. 16;

[0096] FIG. 28 illustrates a sectional view taken along line D-D of the child safety seat shown in FIG. 16;

[0097] FIG. 29 illustrates a schematic perspective view of the seat body and the rotating member shown in FIG. 17 and FIG. 18;

[0098] FIG. 30 and FIG. 31 illustrate schematic perspective views from different perspectives of a remote control apparatus according to an embodiment of this application;

[0099] FIG. 32 illustrates a schematic sectional view of the remote control apparatus shown in FIG. 30 and FIG. 31;

[00100] FIG. 33 illustrates a schematic perspective view of a lower cover of the remote control apparatus shown in FIG. 30 and FIG. 31;

[00101] FIG. 34 illustrates a schematic view of an electrical connection according to an embodiment of This application;

[00102] FIG. 35 illustrates a partial enlarged view of part C in FIG. 28;

[00103] FIG. 36 illustrates a perspective view of a child safety seat according to a fourth embodiment of this application;

[00104] FIG. 37 illustrates a side view of the child safety seat shown in FIG. 36 with the seat assembly in a forward using position;

[00105] FIG. 38 illustrates a side view of the child safety seat shown in FIG. 36 with the seat assembly is in a backward using position;

[00106] FIG. 39 illustrates a sectional view taken along Ul-Ul of the child safety seat shown in FIG. 36;

[00107] FIG. 40 illustrates a sectional view taken along Ul-Ul of the child safety seat shown in FIG. 36 with the seat assembly in a backward using position;

[00108] FIG. 41 illustrates a perspective view of the seat assembly shown in FIG. 36, where a restrainer is in an unlocked position;

[00109] FIG. 42 illustrates a perspective view of the seat assembly shown in FIG. 36, where the restrainer is in a locked position;

[00110] FIG. 43 illustrates a perspective view of a mounting base and an anti-misuse structure of the seat assembly shown in FIG. 36;

[00111] FIG. 44 illustrates a perspective view of the mounting base and the anti-misuse structure shown in FIG. 43 after the operating member is removed;

[00112] FIG. 45 illustrates a perspective view of the operating member shown in FIG. 43;

[00113] FIG. 46 illustrates a perspective view of the base assembly shown in FIG. 36;

[00114] FIG. 47 illustrates a perspective view of the base assembly shown in FIG. 46 after the first housing is removed;

[00115] FIG. 48 illustrates another perspective view of the base assembly shown in FIG. 46, where the cover is in a closed state; [00116] FIG. 49 illustrates a circuit diagram of an indicating structure according to a fourth embodiment of this application;

[00117] FIG. 50 illustrates another perspective view of the base assembly shown in FIG. 46, where the cover is in an open state; and

[00118] FIG. 51 illustrates a sectional view taken along U2-U2 of the base assembly shown in FIG. 48.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[00119] First embodiment

[00120] FIGS. 1 to 3 illustrate side views and perspective views of a child carrier 1000 applied with a canopy connecting structure 300 (see FIG. 6, hereinafter referred to as the canopy connecting structure 300) according to an embodiment of this application. More specifically, the child carrier 1000 includes a body 100, a canopy 200, and a canopy connecting structure 300. The canopy 200 is detachably mounted on the body 100 by using the canopy connecting structure 300. The canopy connecting structure 300 will be described together with the child carrier 1000 hereinafter.

[00121] It can be seen from FIG. 1 to FIG. 3 that, in this embodiment, the child carrier 1000 is exemplarily described by taking a child safety seat as an example. For example, the body 100 includes a seat body (also referred to as a seat) 11 and a base 12. More specifically, a body part 121 of the base 12 is adapted to be placed on a vehicle seat (not shown) and plugged into a ISOFIX socket of the vehicle seat by using a ISOFIX plug-in. The base 12 is provided with a leg 123, an upper end of the leg 123 is pivotally connected to a connecting seat 122, and the connecting seat 122 is disposed on the body part 121. A lower end of the leg 123 is configured to abut a floor within the vehicle. The seat body 11 is rotatably mounted on the base 12, so that a forward using position and a backward using position can be provided for a child. Certainly, in some alternative embodiments, the body 100 may further have other implementations. For example, the seat body 11 and the base 12 may be fixedly mounted together without being relatively rotatable, and the base 12 may not be provided with the leg 123.

[00122] It should be noted that a product type of the child carrier 1000 that can be applied with the canopy connecting structure 300 provided in this embodiment of this application is not limited to the child safety seat enumerated in this embodiment. In some alternative embodiments, the child carrier 1000 may be, for example, a baby basket, a child cart, a crib, or the like. It may be understood that an implementation of the body 100 changes according to a change of the product type of the child carrier 1000.

[00123] Referring to FIG. 1 to FIG. 3 and FIG. 6, in this embodiment, the canopy 200 is detachably mounted on the seat body 11 of the body 100. More specifically, the canopy 200 is detachably mounted on mounting positions 110 which are positioned on both sides of a backrest housing 111 of the seat body 11. Referring to FIG. 1, FIG. 4, and FIG. 5, the canopy 200 includes, for example, an active bracket 21, a positioning bracket 22, and a tarpaulin 23 (the tarpaulin 23 is illustrated by a dashed line in FIG. 1). The active bracket 21 is pivotally connected to the positioning bracket 22. The positioning bracket 22 is configured to be fastened to the seat body 11. The tarpaulin 23 is connected to the active bracket 21 and the positioning bracket 22, respectively.

[00124] When the canopy 200 is mounted on the seat body 11 of the body 100, the positioning bracket 22 is fixed to the seat body 11 and is not movable relative to the seat body 11. Rotation of the active bracket 21 relative to the positioning bracket 22 may drive the tarpaulin 23 to be expanded or folded, so that the canopy 200 has an expanded state (refer to FIG. 1) and a folded state (refer to FIG. 2). In some alternative embodiments, the canopy 200 may further have at least one intermediate state (e.g., a half-open state) between the expanded state and the folded state. Referring to FIG. 1, the canopy 200 may further include at least one auxiliary bracket 24 connected to the tarpaulin 23. The auxiliary bracket 24 is, for example, pivotally connected to both the positioning bracket 22 and the active bracket 21, or the auxiliary bracket 24 is only fixedly connected to the tarpaulin 23. When the canopy 200 is expanded, the auxiliary bracket 24 is configured to support the tarpaulin 23 between the active bracket 21 and the positioning bracket 22.

[00125] Continue to refer to the structure of the canopy 200 shown in FIG. 4 and FIG. 5. In this embodiment, for example, both the active bracket 21 and the positioning bracket 22 are generally U-shaped. The active bracket 21 includes two first connecting parts 211, and the two first connecting parts 211 are located at two ends of the U-shaped structure of the active bracket 21. The positioning bracket 22 includes two second connecting parts 222, and the two second connecting parts 222 are located at two ends of the U-shaped structure of the positioning bracket 22. The two first connecting parts 211 and the two second connecting parts 222 are respectively pivotally connected, so that the active bracket 21 may rotate about a rotation axis Xl-Xl relative to the positioning bracket 22. More specifically, taking a pair of pivotally connected first connecting part 211 and second connecting pars 222 as an example, the first connecting part 211, for example, includes a cylindrical structure extending laterally, and the second connecting part 222, for example, includes a circular ring structure, and the cylindrical structure of the first connecting part 211 is sleeved in the circular ring structure of the second connecting part 222. In some alternative embodiments, the first connecting part 211 and the second connecting part 222 may be pivotally connected together by other suitable structures. [00126] Referring to a three-dimensional structure of the body 100 shown in FIG. 6, in this embodiment, the canopy connecting structure 300 includes two driving apparatuses 31, and the two driving apparatuses 31 are mounted on two sides of the backrest housing 111 of the seat body 11, respectively. Each driving apparatus 31 has a power output member 311, and the power output member 311 has the foregoing rotation axis Xl-Xl (refer to FIG. 8). Each power output member 311 is configured to be non-rotatably connected to a corresponding first connecting part 211 of the active bracket 21 of the canopy 200. Referring to a functional module diagram of a control system of the canopy connecting structure 300 shown in FIG. 7, the canopy connecting structure 300 may further include a control apparatus 32. The control apparatus 32 is in signal connection with the driving apparatus 31 and configured to control the power output member 311 to drive the active support 21 to rotate around the rotation axis Xl-Xl, so that the canopy 200 can be automatically expanded or folded.

[00127] The child carrier 1000 provided in this embodiment of this application drive the active bracket 21 of the canopy 200 to rotate by means of the control apparatus 32 and the driving apparatus 31, so as to automatically expand or fold the canopy 200, thereby implementing automatic control of a state adjustment operation of the canopy 200.

[00128] Referring to FIG. 3 and FIG. 7, the control apparatus 32 in this embodiment includes, for example, a printed circuit board (not shown) and a control panel 321 that are mounted to the connecting seat 122. In some alternative embodiments, the control apparatus 32 may be disposed in any suitable location of the body 100 or may be disposed outside the body 100.

[00129] Referring to FIG. 3, the control panel 321 may include a plurality of operating buttons 3211. For example, the plurality of operating buttons 3211 include but are not limited to a starting button for starting the driving apparatus 31, a stopping button for stopping the driving apparatus 31, an expanded state button corresponding to the expanded state of the canopy, a folded state button corresponding to the folded state of the canopy, and an intermediate state button corresponding to the intermediate state of the canopy. The user may randomly adjust the state of the canopy 200 by operating the starting button and the stopping button, or may adjust the canopy 200 to a corresponding state by operating the buttons corresponding to different states of the canopy. In some embodiments, the control panel 321 may include a touchscreen (not shown), and the user may adjust the state of the canopy 200 by tapping an indication area on the touchscreen. Certainly, in some embodiments, the control panel 321 may adjust the state of the canopy 200 by operating the buttons 3211 in combination with the touchscreen.

[00130] Referring to FIG. 7, the control apparatus 32 may further include a wireless communication module 322. The wireless communication module 322 is adapted to communicate wirelessly with external device 39. The external device 39 may be, for example, but is not limited to, various mobile terminals such as a mobile phone, a smart watch, or a smart bracelet, or may be a central control system of a vehicle. In some embodiments, the wireless signal is, for example, a Bluetooth signal, a WiFi signal, or the like. A wireless transmission path or network may be a local area network such as Bluetooth transmission, WiFi, or WAPI network. Certainly, the network may also be a mobile communication network such as 2G, 3G, 4G, or 5G. The wireless communication module 322 is configured to receive a canopy adjustment instruction sent by the external device 39, and the control apparatus 32 controls an action of the driving apparatus 31 according to the canopy adjustment instruction, so that the canopy 200 can be adjusted to an expected state.

[00131] By configuring the wireless communications module 322 for the control apparatus 32, the user is allowed to remotely adjust the state of the canopy 200. For example, in some typical use scenarios, a user in a driving position may adjust a state of the canopy 200 of the child carrier 1000 mounted on a rear seat of the vehicle by operating the external device 39, and the user does not need to leave the driving position during adjusting the state of the canopy 200, which brings great convenience to the user.

[00132] Referring to FIG. 8 and FIG. 11, the canopy connecting structure 300 in this embodiment may further include a position detecting apparatus 33. The position detecting apparatus 33 is in signal connection with the control apparatus 32, and is configured to send a position signal related to a moving position of the active bracket 21 to the control apparatus 32. When the power output member 311 drives the active bracket 21 to a predetermined position, the control apparatus 32 controls the driving apparatus 31 to stop driving the active bracket 21, so that the state of the canopy 200 can be adjusted more accurately. The predetermined position of the active bracket 21 corresponds, for example, to the expanded state, the folded state, or any intermediate state (e.g., half-open state) between the expanded state and the folded state of the canopy 200.

[00133] Referring to FIG. 8 and FIG. 11, this embodiment further illustrates an exemplary embodiment of the position detecting apparatus 33. The position detecting apparatus 33 includes, for example, an optoelectronic sensor, and more specifically, includes an optoelectronic emitter 331 and an optoelectronic receiver 332. The position detecting apparatus 33 is disposed around the power output member 311, and indirectly obtains the moving position of the active bracket 21 by detecting the rotating position of the power output member 311.

[00134] More specifically, the power output member 311 has, for example, an annular flange 3111, which is located between the photoelectric emitter 331 and the photoelectric receiver 332. In some embodiments, the annular flange 3111 is provided with at least two detecting ports 3110 in the circumferential direction. During the rotation of the the annular flange 3111 along with the power output member 311, when the detecting port 3110 passes between the photoelectric emitter 331 and the photoelectric receiver 332, the photoelectric receiver 332 receives a signal from the photoelectric emitter 331, and the position detecting apparatus 33 sends a position signal to the control apparatus 32, and then the control apparatus 32 can determine whether the active bracket 21 rotates to a predetermined position according to the position signal.

[00135] Certainly, an implementation and a mounting position of the position detecting apparatus 33 are not limited to the foregoing example, as long as it can detect the position signal related to the moving position of the active bracket 21. For example, in some alternative embodiments, the position detecting apparatus 33 may directly detect the moving position of the active bracket 21. In addition, a type of the position detecting apparatus 33 is not limited to the photoelectric sensor. In some alternative embodiments, the position detecting apparatus 33 may be, for example, a proximity switch, a Hall sensor, or an encoder.

[00136] Referring to FIG. 4 and FIG. 6, this embodiment illustrates an exemplary connection of the power output member 311 and the first connecting part 211 of the active bracket 21. As described above, the first connecting part 211 has a cylindrical structure extending laterally, the cylindrical structure has a laterally extending groove 2110, and the power output member 311 has a cylindrical structure adapted to insert into the groove 2110, so that the first connecting part 211 is sleeved with the power output member 311. One of the peripheral wall of the groove 2110 and the peripheral wall of the cylindrical structure of the power output member 311 is disposed with at least one protrusion 251 , and the other is disposed with at least one recess 252. The protrusion 251 and the recess 252 can be engaged with each other, and thus can be used as a rotation restraining mechanism 25 that restrains relative rotation between the first connecting part 211 and the power output member 311.

[00137] Certainly, in some alternative embodiments, the connection of the power output member 311 and the first connecting part 211 is not limited to the foregoing sleeve connection. The power output member 311 and the first connecting part 211 may also be be non-rotatably connected by other suitable structures. In addition, in an embodiment in which the power output member 311 is sleeved with the first connecting part 211, the rotation restraining mechanism 25 that is used to restrain the relative rotation between the power output member 311 and the first connecting part 211 is also not limited to the foregoing protrusion 251 and the recess 252. For example, in some alternative embodiments, the power output member 311 and the first connecting part 211 restrain the relative rotation therebetween by means of cut-out surfaces in contact with each other.

[00138] Referring to FIG. 6, in this embodiment, a hole is disposed at the mounting position 110 of the backrest housing 111, and the power output member 311 is located inside the backrest housing 111 and corresponds to the hole at the mounting position 110. When the canopy 200 is mounted on the seat body 11 of the body 100, the first connecting part 211 of the active bracket 21 extends from the hole at the mounting position 110 into the interior of the backrest housing 111 and is sleeved with the power output member 311. In some alternative embodiments, the power output member 311 may protrude from the hole at the mounting position 110, and the first connecting part 211 is sleeved with the first connecting part 211 outside the backrest housing 111.

[00139] Referring to FIG. 6, in this embodiment, an engaging hole 112 is disposed on the body 100 (more specifically, on the backrest housing 111), and the engaging hole 112 is deviated from the mounting position 110. Referring to FIG. 5, the positioning bracket 22 is provided with an engaging post 221, and the engaging post 221 is disposed, for example, in a position adjacent to the second connecting part 222. When the canopy 200 is mounted on the body 100, the engaging post 221 is inserted into the engaging hole 112, so that the relative position between the positioning bracket 22 and the body 100 can be locked. When the canopy 200 needs to be removed, the active bracket 21 and the positioning bracket 22 can be horizontally extended, and the active bracket 21 and the positioning bracket 22 can be elastically deformed. Thus the two first connecting parts 211 can be moved reversely in the direction of the rotation axis XI -XI to disengage from the power output member 311, and the two second connecting parts 222 can be moved reversely in the direction of the rotation axis Xl-Xl to remove the engaging post 221 from the engaging hole 112, so that the canopy 200 can be moved to be separated from the body 100. Certainly, in other embodiments, the positioning bracket 22 may be non-movably connected to the body 100 via other suitable positioning mechanisms. For example, in some alternative embodiments, the outline of the backrest housing 111 may be formed with a positioning groove for engagement with the positioning bracket 22.

[00140] FIGS. 8 to 13 illustrate perspective views, exploded views, and sectional views of some components of the canopy connecting structure 300 of this embodiment. The canopy connecting structure 300 may further include a mounting seat 35, which is fastened, for example, to the inside of the backrest housing 111 of the body 100 by a fastener (not shown) passing through a through hole 350. The driving apparatus 31 may further include a power source 313 and a transmission mechanism 312 (refer to FIG. 12). Both the power source 313 and the transmission mechanism 312 are mounted on the mounting seat 35. The power source 313 is configured to output power, and the transmission mechanism 312 is configured to transmit the power output from the power source 313 to the power output member 311. The mounting seat 35 may be further provided with a holder 353, and the position detecting apparatus 33 is mounted on the holder 353, for example.

[00141] More specifically, referring to FIG. 9, the power source 313 is, for example, an electric motor (or referred to as a motor) mounted on the mounting seat 35 by a fastener 3132, for example. The power source 313 is in signal connection with the control apparatus 32, and the power source 313 receives an instruction from the control apparatus 32 to drive the power output member 311 to rotate or stop driving the power output member 311 to rotate. For example, the transmission mechanism 312 is a gear transmission mechanism, and the gear transmission mechanism includes a driving gear 3123 and an output gear 3122. The driving gear 3123 is drivingly connected to an output shaft 3131 of the power source 313. The driving gear 3123 is directly and non-rotatably connected to the output shaft 3131, for example, or is non-rotatably connected to the output shaft 3131 by a middle member 3133 mounted therebetween. The driving gear 3123 and the output gear 3122 may be directly meshed or indirectly meshed with each other.

[00142] The output gear 3122 and the power output member 311 are connected coaxially by the fastener 36. The fastener 36 may be, for example, a rivet or a bolt. The output gear 3122 has a first end face teeth 3121, the power output member 311 has a second end face teeth 3112, and the first end face teeth 3121 mesh with the second end face teeth 3112. The power output by the power source 313 is transmitted to the output gear 3122 via the driving gear 3123, and is transmitted to the power output member 311 via the first end face teeth 3121 and the second end face teeth 3112 that are meshed with each other. The power output member 311 drives the active bracket 21 to rotate, so as to adjust a state of the canopy 200.

[00143] FIGS. 10 to 13 illustrate an exemplary assembled structure of the power source 313, the transmission mechanism 312, and the power output member 311. For example, the mounting seat 35 is provided with a first mounting hole 351, and the driving gear 3123 is drivingly connected to the output shaft 3131 of the power source 313 at the first mounting hole 351. For example, the mounting seat 35 is further provided with a second mounting hole 352, and the output gear 3122 and the power output member 311 are coaxially connected to each other by a fastener 36 mounted in the second mounting hole 352.

[00144] More specifically, the second mounting hole 352 is of a stepped type, and the output gear 3122 has a cylinder 31221 that is sleeved with the second mounting hole 352. The output gear 3122 has a central hole 31220, and the power output member 311 has a cylinder 3113 that is sleeved with the central hole 31220. The power output member 311 has a first stepped hole 310. The fastener 36 is sleeved in the second mounting hole 352, the central hole 31220, and the first stepped hole 310, and serves as a rotation shaft of the output gear 3122 and the power output member 311. Accordingly, the axis of the fastener 36 forms a rotational axis Xl-Xl of the power output member 311. A first end 361 of the fastener 36 that is away from the output gear 3122 is located inside the first stepped hole 310, which facilitates a compact overall structure. Certainly, in some alternative embodiments, the first stepped hole 310 may be replaced by a straight hole, which is also within the protection scope of this application. In addition, the first end 361 of the fastener 36 may protrude outward relative to the power output member 311.

[00145] Referring to FIG. 12 and FIG. 13, in this embodiment, the power output member 311 may be axially movably sleeved on the fastener 36. The canopy connecting structure 300 further includes an elastic member 34, and the elastic member 34 is configured to apply an elastic force to the power output member 311 that causes the power output member 311 to press against the output gear 3122, so that the first end face teeth 3121 and the second end face teeth 3112 remain meshed with each other.

[00146] Referring to FIG. 10 and FIG. 11, the first end face teeth 3121 has an inclined part 31212, and the second end face teeth 3112 has an inclined part 31122. When the power output member 311 receives a relatively large circumferential force from the outside, for example, the user manually adjusts the state of the canopy 200 by applying a circumferential force to the active bracket 21, under the action of the inclined part 31212 and the inclined part 31122, the power output member 311 may rotate relative to the output gear 3122 around the fastener 36, and move away from the output gear 3122 along the fastener 36, so that the first end face teeth 3121 and the second end face teeth 3112 are disengaged from each other (that is, the state shown in FIG. 13), so as to allow the user to manually adjust the state of the canopy 200. That is, the user does not need to drive the output gear 3122 to rotate during the manual adjustment of the canopy 200, thereby avoiding damage to the power source 313. In some alternative embodiments, the above technical effect can also be achieved when only one of the first end face teeth 3121 and the second end face teeth 3112 is disposed. In addition, in some alternative embodiments, each tooth of the first end face teeth 3121 and the second end face teeth 3112 may have an arc profile to allow the user to manually adjust the state of the canopy 200.

[00147] It should be noted that a shape of the first end face teeth 3121 and the second end face teeth 3112 and a meshing depth of the end face teeth may be properly set, so as to ensure that when the power source 313 drives the output gear 3122, the power output member 311 rotates synchronously with the output gear 3122 without skidding.

[00148] Referring to FIG. 12 and FIG. 13, to facilitate mounting of the elastic member 34, a restraining member 37 is disposed at a first end 361 of the fastener 36, and the elastic member 34 is interposed between the restraining member 37 and the power output member 311. In this embodiment, the restraining member 37 and the elastic member 34 are located in the first stepped hole 310. The restraining member 37 is slidably engaged with the first stepped hole 310, and the elastic member 34 may be a spring sleeved on the fastener 36. More specifically, the first stepped hole 310 includes a first stepped part 3101 and a second stepped part 3102, and the first stepped part 3101 is closer to the restraining member 37 than the second stepped part 3102. The restraining member 37 is configured to restrain an axial movement stroke of the first stepped part 3101. The elastic member 34 is interposed between the restraining member 37 and the second stepped part 3102. In some alternative embodiments, the second stepped part 3102 may not be disposed, and the elastic member 34 is interposed between the restraining member 37 and the first stepped part 3101.

[00149] Referring to FIG. 8, FIG. 12, and FIG. 13, in this embodiment, the restraining member 37 and the power output member 311 cannot rotate relative to each other. More specifically, the outer peripheral contour of the restraining member 37 matches concavely with inner peripheral contour of the first stepped hole 310 of the power output member 311. The restraining member 37 has a second stepped hole 370, the restraining member 37 is sleeved on the fastener 36 by the second stepped hole 370, and more specifically, the first end 361 of the fastener 36 is located inside the second stepped hole 370. In some embodiments, a washer 38 sleeved on the fastener 36 may further be disposed in the second stepped hole 370, and the washer 38 may be made of a wear-resistant material having a low friction coefficient. In some alternative embodiments, the restraining member 37 is, for example, integrated with the fastener 36. In some alternative embodiments, the restraining member 37 has, for example, a cylindrical structure that is pivotally connected to the first stepped hole 310 of the power output member 311.

[00150] The following will briefly describe a working process of the child carrier 1000 that is applied with the canopy connecting structure 300 according to the first embodiment of this application when adjusting the state of the canopy.

[00151] A child carrier 1000 is, for example, a child safety seat mounted on a rear seat of the vehicle. When a user (a driver or another passenger in a seat) wishes to automatically adjust the canopy of the child safety seat to a desired state, the user may send a canopy adjustment instruction to the control apparatus 32 by operating the external device 39 (such as a mobile terminal or a central control system of the vehicle) or the control panel 321. After receiving the canopy adjustment instruction, the control apparatus 32 transmits a signal to the driving apparatus 31, and the power source 313 of the driving apparatus 31 transmits the power to the power output member 311 by the transmission mechanism 312. The power output member 311 drives the active bracket 21 to rotate until the position detecting apparatus 33 detects that the power output member 311 rotates to a position (corresponding to the expected state of the canopy 200), and the control apparatus 32 controls the power source 313 to stop outputting the power. The canopy 200 is held in the expected state.

[00152] For example, the canopy connecting structure 300 provided in the first embodiment of this application may be modified as follows.

[00153] I. In some alternative embodiments, for example, the body 100 is provided with a slide track that slidingly cooperate with the active bracket 21 of the canopy 200, and the control apparatus 32 controls the power output member 311 to drive the active bracket 21 to move along the slide track, so that the canopy 200 can be expanded or folded.

[00154] II. In some alternative embodiments, the canopy 200 is, for example, non- detachably connected to the body 100. For example, the fastener 36 non-detachably mounts the first connecting part 211 of the active bracket 21 to the body 100.

[00155] III. In some alternative embodiments, the transmission mechanism 312 with the output gear 3122 is not limited to a gear transmission mechanism. For example, the transmission mechanism 312 may include a gear rack transmission mechanism or a worm gear transmission mechanism.

[00156] IV. In some alternative embodiments, the canopy connecting structure 300 may include a driving apparatus 31, a first connecting part 211 of the active bracket 21 is connected to the power output member 311 of the driving apparatus 31 , and the other first connecting part 211 is pivotally connected to the body 100.

[00157] V. In some alternative embodiments, the driving apparatus 31 may not be provided with the driving gear 3123, and the output shaft 3131 of the power source 313 is coaxially disposed with the output gear 3122 and is non-rotatably connected with the output gear 3122. The power of the power source 313 may be transmitted to the output gear 3122 at a short distance. In some embodiments, the output shaft 3122 is directly connected to, for example, the output gear 3122 by means of spline connections or cut-out connections, or may be connected by means of a middle member located therebetween.

[00158] Second embodiment

[00159] FIG. 14 and FIG. 15 illustrate side views and perspective views of a child carrier 1000 that is applied with a canopy connecting structure 300 according to an embodiment of this application. In case of no conflict, the structure of the child carrier 1000 and the canopy connecting structure 300 in this second embodiment can refer to the description in the first embodiment mentioned above.

[00160] Referring to FIG. 14 and FIG. 15, unlike the first embodiment, the canopy 200 of this second embodiment may not be provided with a positioning bracket 22, and features related to the positioning bracket 22 may be correspondingly omitted. More specifically, the canopy 200 in this second embodiment includes an active bracket 21 and a tarpaulin 23. The tarpaulin 23 is connected to the body 100 and the active bracket 21. The tarpaulin 23 is, for example, connected to the top of the backrest housing 111 of the seat body 11. When the control apparatus 32 controls the power output member 311 to drive the active bracket 21 to move, the canopy 200 can be automatically expanded or folded.

[00161] In this second embodiment, the active bracket 21 and the body 100 may be detachable connection or non-detachable connection. The tarpaulin 23 and the body 100 may be correspondingly detachable or non-detachable connection.

[00162] The canopy connecting structure 300 provided in the first embodiment and the second embodiment of this application may also be applied to the following third embodiment and fourth embodiment.

[00163] Third embodiment

[00164] Referring to FIG. 16 to FIG. 18, a third embodiment of this application provides an angle adjustable child safety seat 100a. In case of no conflict, the structure of the child safety seat 100a provided in this third embodiment can refer to the child safety seat described in the foregoing embodiments. The child safety seat may also be applied with the foregoing canopy connecting structure 300.

[00165] Referring to FIG. 16 to FIG. 18, the child safety seat 100a includes a base 12 and a seat body 11. The seat body 11 is slidably connected to the base 12, and an angle (also referred to as a tilt angle) of the seat body 11 relative to the base 12 changes with sliding of the seat body 11 relative to the base 12. For example, referring to FIG. 17 and FIG. 18, the seat body 11 can slide relative to the base 12, so that the tilt angle of the seat body 11 switches between the upright state shown in FIG. 17 and the lie-down state shown in FIG. 18. The seat body 11 may further have a plurality of tilting positions between the upright state and the lie-down state, so as to meet a requirement of a personalized sitting position and a sleeping position of an infant. In some embodiments, the seat body 11 may be a baby basket.

[00166] Referring to FIG. 19 to FIG. 21, in an embodiment, the child safety seat 100a further includes a sliding rod 131, a sliding groove 113, a driving rod 114, and a driving mechanism 41.

[00167] The sliding rod 131 is disposed on the base 12. In some embodiments, the base 12 is provided with a rotating member 13, and more specifically, the sliding rod 131 is disposed on the rotating member 13. The sliding groove 113 is, for example, formed on the seat body 11. The sliding rod 131 can be inserted into the sliding groove 113, and the sliding rod 131 can slide in the sliding groove 113, so as to guide the seat body 11 to slide relative to the base 12, thereby adjusting an tilt angle of the seat body 11.

[00168] In this embodiment, the rotating member 13 may pivot around the rotation axis X2- X2 relative to the base 12, and the seat body 11 and the rotating member 13 may not relative to each other around the rotation axis X2-X2. Therefore, when the rotating member 13 pivots relative to the base 12, the seat body 11 is allowed to switch between the forward using position and the backward using position.

[00169] The driving rod 114 is disposed on the seat body 11. The driving mechanism 41 is disposed on the base 12. In this embodiment, more specifically, the driving mechanism 41 is disposed on the rotating member 13. The driving mechanism 41 is coupled to the driving rod 114, and it is capable of pushing the driving rod 114 to move reciprocally, so as to drive the seat body 11 to slide relative to the base 12, thereby implementing automatic adjustment of the tilt angle of the seat body 11.

[00170] Alternatively, the sliding groove 113 is formed as an arc groove, and the driving mechanism 41 is pivotally connected to the base 12. In this embodiment, more specifically, the driving mechanism 41 is pivotally connected to the rotating member 13. When the seat body 11 slides, the driving mechanism 41 may swing relative to a pivot point between the driving mechanism 41 and the base 12 (or the rotating member 13). An extending direction of the pivot axis of the driving mechanism 41 relative to the base 12 is orthogonal to a direction of the reciprocating movement of the driving rod 114.

[00171] Alternatively, the seat body 11 and the sliding groove 113 are integral parts, and an inner peripheral wall of the sliding groove 113 is made of plastic material. Referring to FIG. 21, alternatively, the seat body 11 is provided with a stiffener 1122 that extends in a vertical direction, and the sliding groove 113 is disposed on the stiffener 1122.

[00172] Referring to FIG. 21, in an embodiment, a reinforcing member 1133 is further disposed on the outside of the sliding groove 113. The reinforcing member 1133 is a sheet-like structure, and is more specifically a thin sheet. The reinforcing member 1133 may be made of metal and fastened to the seat body 11. The reinforcing member 1133 has a through groove 11331 that corresponds to a shape of the sliding groove 113, so that the sliding rod 131 can slide in the through groove 11331. A setting of the reinforcing member 1133 enhances structural strength of a sliding fitting structure formed by the sliding rod 131 and the sliding groove 113, so as to avoid wear of the sliding rod 131 in the sliding groove 113 during sliding, thereby improving a service life of the sliding fitting structure. Alternatively, a thickness of the reinforcing member 1133 is less than a depth of the sliding groove 113.

[00173] The ends of the driving rod 114 are fixedly connected to the two reinforcing members 1133 respectively disposed on the left and right sides. The driving rod 114 is fixedly connected to the reinforcing member 1133, thereby enhancing the connection strength between the driving rod 114 and the seat body 11, so as to avoid that the driving rod 114 fails to be fixedly connected to the base 12 due to long-term reciprocating movement, and further loosening occurs.

[00174] Referring to FIG. 28 and FIG. 34, in some embodiments, the child safety seat 100a further includes a control mechanism 42. The control mechanism 42 is disposed on the seat body 11 and/or the base 12, and the control mechanism 42 is electrically connected to the driving mechanism 41. The control mechanism 42 is electrically connected to the driving mechanism 41. The control mechanism 42 is configured to send a control signal to the driving mechanism 41, and the driving mechanism 41 drives the seat body 11 to slide relative to the base 12 according to the received control signal.

[00175] In an embodiment, a rotating connector 132 is disposed in a center of the rotating member 13, and an electrical slip ring 133 is disposed in a middle of the rotating connector 132. The operation panel 431 and the control mechanism 42 (more specifically, the seat circuit board 421 as described below) are electrically connected via the electrical slip ring 133. That is, the electrical connection between the base 12 and the seat body 11 is implemented by using the electrical slip ring 133.

[00176] Alternatively, the control mechanism 42 may include a base circuit board 124 disposed on the base 12. Alternatively, the base circuit board 124 is disposed below the operation panel 431 and is electrically connected to the operation panel 431.

[00177] Referring to FIG. 9, as described above, the base 12 further includes a rotating member 13, which is rotatably disposed on the base 12, and is connected to the seat body 11. The rotating member 13 can rotate 360 degrees along the rotation axis X2-X2 with respect to the base 12, so that the seat body 11 can rotate with respect to the base 12, and the seat body 11 can be adjusted to face the front or the rear of the vehicle moving direction. As mentioned above, the driving mechanism 41 is pivotally connected to the rotating member 13.

[00178] Referring to FIG. 22 to FIG. 25, in an embodiment, the driving mechanism 41 includes a motor 411, a screw 412, a driving block 413, and a bracket 414. The motor 411 is fixed on the bracket 414. The screw 412 is rotatably disposed in the bracket 414, and the motor 411 is coupled to the screw 412 to drive the screw 412 to rotate. The driving block 413 is sleeved on the screw 412 and threaded to the screw 412, and the driving block 413 is further connected to the seat body 11. More specifically, the driving block 413 is connected to the driving rod 114 of the seat body 11. The screw 412 and the driving block 413 are part of a screw nut driving mechanism. One end of the bracket 414 is pivotally connected to the base 12, for example, by means of apivotal pin 415. In an embodiment in which the rotating member 13 is disposed, one end of the bracket 414 is pivotably connected to the rotating member 13. The other end of the bracket 414 is a free end. Alternatively, the free end of the bracket 414 is sleeved in the backrest of the seat body 11.

[00179] The motor 411 drives the screw 412 to rotate, thereby driving the driving block 413 to move in a longitudinal direction of the screw 412. For example, when the screw 412 rotates clockwise, the driving block 413 moves upward in the longitudinal direction of the screw 412. When the screw 412 rotates counterclockwise, the driving block 413 moves downward in the longitudinal direction of the screw 412. Movement of the driving block 413 in the longitudinal direction of the screw 412 can drive the seat body 11 to slide relative to the base 12, so as to change the tilt angle of the seat body 11.

[00180] During pivoting of the bracket 414 relative to the base 12, the angle between the longitudinal direction of the screw 412 and the vertical direction is always an acute angle.

[00181] Referring to FIG. 22 and FIG. 23, in an embodiment, as described above, a driving rod 114 is disposed on the seat body 11. The driving block 413 is provided with a connecting hole 4131. The driving rod 114 passes through the connecting hole 4131, so that the driving block 413 is connected to the seat body 11. When the driving block 413 moves in the longitudinal direction of the screw 412, the driving block 413 drives the seat body 11 to slide relative to the base 12 as the driving rod 114 is fitted into the connecting hole 4131.

[00182] Referring to FIG. 24 and FIG. 25, in an embodiment, the motor 411 includes an output shaft 4111, and first teeth 41111 are disposed on an outer surface of the output shaft 4111. A driving gear 4121 is fixedly disposed on the screw 412, and the driving gear 4121 has second teeth 41211. The motor 411 drives the screw 412 to rotate by meshing the first teeth 41111 with the second teeth 41211. The output shaft 4111 and the driving gear 4121 are, for example, part of a worm gear transmission mechanism. Specifically, when the output shaft 4111 of the motor 411 is rotated clockwise or counterclockwise, the rotational motion of the output shaft 4111 is transmitted to the screw 412 by the meshing between the first teeth 41111 and the second teeth 41211, so that the screw 412 can rotate, thereby the motor 411 can drive the screw 412 to rotate.

[00183] Referring to FIG. 25, in an embodiment, the driving block 413 is provided with a through-hole 4132 with an internal thread, the through-hole 4132 is sleeved on the screw 412, and the internal thread of the through-hole 4132 meshes with the external thread 4122 of the screw 412. The rotation of the screw 412 can drive the driving block 413 to move in the longitudinal direction of the screw 412 by means of the meshing of the internal thread with the external thread 4122 and by means of restraining the rotation of the driving block 413 around the axis of the screw 412 by a suitable structure. Specifically, the motor 411 can drive the screw 412 to rotate, the rotation of the screw 412 can drive the driving block 413 to move in a longitudinal direction of the screw 412, the movement of the driving block 413 can be transmitted to the driving rod 114, and the driving rod 114 can drive the seat body 11 to slide relative to the base 12.

[00184] Referring to FIG. 22 to FIG. 24, in an embodiment, a receiving slot 4142 is disposed in the bracket 414, two opposite ends of the receiving slot 4142 are respectively disposed with a first mounting groove 41421 and a second mounting groove 41422, and the screw 412 can be rotatably disposed in the receiving slot 4142. The driving block 413 is fitted into the receiving slot and can move in a longitudinal direction of the receiving slot 4142. The cooperation of the driving block 413 and the receiving slot 4142 may restrain the rotation of the driving block 413 around the axis of the screw 412.

[00185] Referring to FIG. 24, a first supporting member 4123 and a second supporting member 4124 are respectively sleeved on the two opposite ends of the screw 412, and the first supporting member 4123 and the second supporting member 4124 are respectively disposed in the first mounting groove 41421 and the second mounting groove 41422. When the screw 412 rotates, the first supporting member 4123 and the second supporting member 4124 rotate in the first mounting groove 41421 and the second mounting groove 41422, respectively. Alternatively, the first supporting member 4123 and the second supporting member 4124 are made of a wear-resistant material such as steel or copper.

[00186] Referring to FIG. 23, in an embodiment, a first cover plate 4143 is disposed in a part of the first mounting groove 41421 of the bracket 414, and the first cover plate 4143 covers the first mounting groove 41421, so as to restrain the first supporting member 4123 in the first mounting groove 41421. A second cover plate 4144 is disposed in a part of the second mounting groove 41422 of the bracket 414, and the second cover plate 4144 covers the second mounting groove 41422, so as to restrain the second supporting member 4124 in the second mounting groove 41422. Alternatively, the first cover plate 4143 and the second cover plate 4144 are fastened to the bracket 414 by bolts, screws, and the like.

[00187] Referring to FIG. 22, in an embodiment, the bracket 414 is provided with a plurality of position sensors 4141. Alternatively, the plurality of position sensors 4141 are disposed on the bracket 414 at intervals in the longitudinal direction of the screw 412. The driving block 413 is provided with a detection piece 4133, for example, the detection piece 4133 is a thin sheet extending from the driving block 413, and the detection sheet 4133 projects to the bracket 414. When the driving block 413 moves in the longitudinal direction of the screw 412 to such an extent that the detection piece 4133 enters the sensing area of the position sensor 4141, the position sensor 4141 sends an identification signal to the control mechanism 42, and the identification signal is related to the tilt angle of the seat body 11.

[00188] Referring to FIG. 19 and FIG. 22, alternatively, a first position sensor 4141a and a third position sensor 4141c are respectively disposed in a part of the bracket 414 that is corresponding to the upper limit position and the lower limit position of the motion stroke of the driving block 413. With reference to the orientations in FIG. 19 and FIGS. 22- 25, the terms "upper limit position" and "lower limit position" herein refer to an extreme position of upward motion of the driving block 413 and an extreme position of downward motion of the driving block 413, respectively. Alternatively, a second position sensor 4141b is disposed in a part of the bracket 414 that corresponds to an intermediate position of the motion stroke of the driving block 413. With reference to the orientations in FIG. 8, the term "intermediate position" herein refers to a substantially midpoint position between the extreme positions of the upward movement and the downward movement of the driving block 413.

[00189] Referring to FIG. 19 and FIG. 22, in an embodiment, the driving block 413 may further be provided with a restraining member 4134, which protrudes out of the driving block 413 in a direction in which the driving block 413 moves. When the driving block 413 reaches the upper or lower extreme position of the motion stroke, the restraining member 4134 is, for example, abutting the bracket 414 or a suitable structure of the rotating member 13 to prevent the driving block 413 from continuing to move away from the upper or lower extreme position. For example, in a case in which the control mechanism 42 fails, the driving block 413 continues to move in a direction away from the upper extreme position and the lower extreme position after reaching the lower extreme position of the motion stroke, and in this case, the restraining member 4134 abuts a corresponding part of the bracket 414, so as to prevent the driving block 413 from continuing to move and avoid damage to the driving mechanism 41.

[00190] In this embodiment, the restraining member 4134 projects out of the driving block 413 in a direction toward the motor 411, so as to prevent the driving block 413 from colliding with and damaging the motor when moving toward the motor 411. Alternatively, the restraining member 4134 is a protruding part that is disposed on the driving block 413 and extends toward the upper extreme position or the lower extreme position. Alternatively, the restraining member 4134 is formed integrally with the driving block 413. Alternatively, the restraining member 4134 is fixedly connected to the driving block 413. Alternatively, the restraining member 4134 is disposed on a side of the driving block 413 facing the lower extreme position.

[00191] Referring to FIG. 19 and FIG. 21, in an embodiment, a supporting plate 135 is fixedly connected to the rotating member 13. One sliding rod 131 passes through the two opposing supporting plates 135. A sliding groove 113 is disposed on the seat body 11. The sliding rod 131 is inserted into the sliding groove 113, and the sliding rod 131 slides in the sliding groove 113, so as to guide sliding of the seat body 11 relative to the base 12, thereby changing the tilt angle of the seat body 11.

[00192] Specifically, in this embodiment, the rotating member 13 is disposed with two sliding rods parallel to each other, which are respectively the first sliding rod 1311 and the second sliding rod 1312. The seat body 11 is provided with a first sliding groove group 1131 and a second sliding groove group 1132, and the first sliding groove group 1131 includes two sliding grooves 113 disposed opposite to each other. The second sliding groove group 1132 includes two other sliding grooves 113 disposed opposite to each other. The first sliding rod 1311 is inserted into the first sliding groove group 1131, and the first sliding rod 1311 slides in the first sliding groove group 1131. The second sliding rod 1312 is inserted into the second sliding groove group 1132, and the second sliding rod 131 slides in the second sliding groove group 1132.

[00193] Alternatively, a reinforcing member 1133 is covered outside the sliding groove 113, so as to reduce wear between the sliding rod 131 and the sliding groove 113. Specifically, the reinforcing member 1133 is a sheet- like structure made of metal, and a through groove 11331 is disposed on the reinforcing member 1133, and the through groove 11331 overlaps the sliding groove 113. In this embodiment, the sliding groove 113 is integrally disposed on the seat body 11. Therefore, the sliding groove 113 is formed of plastic material of the seat body 11. The sliding groove 113 may be directly formed in a protrusion structure in a mold cavity during forming the seat body 11, for example, on a stiffener, or may be obtained by drilling a hole after forming the seat body 11. The two end parts of the sliding rod 131 are inserted into the sliding groove 113, and a contact area between the sliding rod 131 and an inner wall of the sliding groove 113 may be increased, so as to prevent the sliding groove 113 made of plastic material from being damaged due to excessive force locally. When the sliding rod 131 slides in the sliding groove 113, the sliding groove 113 of plastic material helps reduce noise generated when the sliding rod 131 slides. Further, as the sliding groove 113 is formed of plastic material of the seat body 11, manufacturing costs are low.

[00194] As described above, in some embodiments, a reinforcing member 1133 made of metal is disposed on each sliding groove 113, and a through groove 11331 is disposed on the reinforcing member 1133, and the through groove 11331 corresponds to a shape of the sliding groove 113. Each sliding rod 131 is slidably fitted with a corresponding sliding groove 113 and a through groove 11331, so that wear between the sliding rod 131 and the sliding groove 113 can be reduced. Further, the structural strength of the sliding groove 113 can be ensured by setting the reinforcing member.

[00195] Compared with a solution in which the sliding groove 113 is disposed on the mounting seat 13 and the sliding rod 131 is disposed on the seat body 11, the sliding groove 113 in this embodiment can be integrally formed with the seat body 11, and the sliding groove may have sufficient structural strength without being formed on a metal part. The structural strength of the sliding groove can be further enhanced by using the reinforcing member 1133. The solution in this embodiment further reduces a weight and a cost of the child safety seat 100a.

[00196] Alternatively, a shape of the sliding groove 113 is set to be an arc, so that the seat body 11 slides along a sliding track of the arc relative to the base 12. As described above, one end of the bracket 414 is pivotally connected to the base 12 by the pivot pin 415, so that a movement direction of the driving block 413 is consistent with a direction of a shape of the sliding groove 113. While the driving block 413 pushes the driving rod 114, the driving block 413 swings along with the bracket 414 around the pivot point of the bracket 414 and the pivot member 13, so as to adapt to the sliding of the seat body 11 relative to the pivot member 13. [00197] The following will describe in detail a working principle of the child safety seat 100a in an embodiment of this application with reference to FIG. 17 to FIG. 19 and FIG. 21 to FIG. 25.

[00198] As shown in FIG. 17, an angle of the seat body 11 is, for example, in an upright state. In this case, the driving block 413 is in the upper extreme position, for example. In this case, a user (for example, a driver that is driving the vehicle or a passenger) sends a command for adjusting a seat (tilt) angle to the control mechanism 42 by pressing a control button provided on the remote control apparatus 432 (described below) or on the operation panel 431. After receiving the command for adjusting the seat angle, the control mechanism 42 controls the motor 411 of the driving mechanism 41 to rotate. The motor 411 drives the screw 412 to rotate, and the rotary of the screw 412 drive the driving block 413 to move from the upper extreme position to the lower extreme position. Movement of the driving block 413 is transmitted to the seat body 11 by means of cooperation of the driving rod 114 and the connecting hole 4131, so that the seat body 11 has a movement trend. The movement trend of the seat body 11 is implemented as sliding of the seat body 11 relative to the base 12 by cooperation between the sliding rod 131 and the arc- shaped sliding groove 113. As the seat body 11 slides relative to the base 12, the bracket 414 pivots relative to the base 12 or the rotating member 13 to adapt to the shape of the sliding groove 113. Therefore, the angle of the seat body 11 gradually switches from the upright state shown in FIG. 2 to the lie-down state shown in FIG. 3, vice versa. Therefore, a driver driving the vehicle or a passenger can easily adjust an angle of the child safety seat 100a provided in the embodiments of this application.

[00199] Referring to FIG. 20 and FIG. 28, in an embodiment, as described above, the rotating member 13 is provided with a circular rotating connector 132. The rotating connector 132 is, for example, fixed to the base 12, and pivotably connected to the rotating member 13. In some embodiments, there is a gap between the rotating connector 132 and the rotating member 13, and an upper housing of the base 12 is rotatably held in the gap. The rotating member 13 is rotatably disposed on the base 12 by the rotating connecting member 132. An edge of the rotating connecting member 132 has an annular flange, and the annular flange is slidably fitted in an annular groove of the upper housing of the base. As described above, the rotating connector 132 is further provided with an electrical slip ring 133, and the electrical slip ring 133 is configured to keep an electrical connection between a component disposed on the seat body 11 and a component disposed on the base 12 when the seat body 11 rotates.

[00200] Referring to FIG. 16 and FIG. 28, in an embodiment, the child safety seat 100a further includes an operating mechanism 43. The operating mechanism 43 includes an operation panel 431 disposed on the base 12, and is electrically connected to the control mechanism 42. The operation panel 431 includes a control button 433 that is configured to adjust the (tilt) angle of the seat body 11. The user can operate the tilt position control button on the operation panel 431 to control the start of the driving mechanism 41 through the control mechanism 42, thereby controlling the seat body 11 to slide relative to the base 12 to change the angle of the seat body 11.

[00201] Alternatively, in an embodiment, the control button 433 may include a switch button 4331 and a tilt angle button configured to control the tilt angle of the seat body 11. After the switch button 4331 is pressed, the tilt angle of the seat body 11 can be adjusted by pressing a tilt reduction button or a tilt increase button of the control button 433. In some embodiments, the control button may be replaced with a touchscreen, a remote control, a mobile phone application, or the like.

[00202] Referring to FIG. 21 and FIG. 26, in an embodiment, the control mechanism 42 includes a seat circuit board 421 , a mounting box 422, and a mounting cover 423. The mounting box 422 is disposed on the seat body 11, the seat circuit board 421 is disposed in the mounting box 422, and the mounting cover 423 can cover the mounting box 422 to close the mounting box 422.

[00203] Referring to FIG. 28 and FIG. 34, in an embodiment, the seat circuit board 421 is electrically connected to the electrical slip ring 133, the driving mechanism 41, and the position sensor 4141. The operation panel 431 and the base circuit board 124 are electrically connected to the electrical slip ring 133, so that the control mechanism 42 can be electrically connected to other components. Alternatively, the electrical connection can be achieved by using a wire connection. In this application, the term "electrical connection" includes connections used to transmit electrical energy and connections used to transmit electrical signals.

[00204] Referring to FIG. 30 to FIG. 33, in an embodiment, the child safety seat 100a may further include a remote control apparatus 432. The remote control apparatus 432 can establish a wireless communication connection to the control mechanism 42 by radio frequency, Bluetooth, or the like, and transmit a control signal to the control mechanism 42, so that the control mechanism 42 can control the driving mechanism 41 to drive the seat body 11 to slide relative to the base 12, thereby changing the tilt angle of the seat body 11.

[00205] Alternatively, the remote control apparatus 432 may be a remote control, and the remote control is wirelessly and communicatively connected to the control mechanism 42. For example, the remote control includes an upper cover 4321 and a lower cover 4322 that are detachably fastened to each other, and a battery 4323. Alternatively, the upper cover 4321 and the lower cover 4322 are fastened to each other by using a first protrusion 4327 disposed on the upper cover 4321 and a second protrusion 4326 disposed on the lower cover 4322. Alternatively, the upper cover 4321 and the lower cover 4322 may also be fastened to each other in another suitable manner, for example, a bolt connection or a magnetic connection, which is not limited herein.

[00206] Referring to FIG. 31, alternatively, a removal port 4325 is further disposed in the remote control, so as to separate the upper cover 4321 and the lower cover 4322 that are attached to each other. Referring to FIG. 32 and FIG. 33, a receiving space 4324 is defined between the upper cover 4321 and the lower cover 4322, and a replaceable battery 4323 is disposed in the receiving space 4324. Alternatively, a control button for switching between the upright mode and the lie-down mode is disposed on the remote control.

[00207] Referring to FIG. 28 and FIG. 34, an embodiment of this application further provides a child safety seat 100a including a base 12 and a seat body 11. The base 12 includes a rotating member 13 and a rotating connector 132. The rotating connector 132 is fixedly connected to a body part (not marked in the figure, and used as a body structure on a vehicle seat) of the base 12, and may be pivotally connected to the rotating member 13, so that the rotating member 13 may rotate relative to the body part of the base 12. The seat body 11 is slidably connected to the rotating member 13, and a tilt angle of the seat body 11 relative to the base 12 changes with sliding of the seat body 11 relative to the rotating member 13. More specifically, the tilt angle of the seat body 11 relative to the base 12 may also be referred to as the tilt angle of the seat body 11 relative to the rotating member 13.

[00208] Referring to FIG. 16, in some embodiments, a power input port 126 may be disposed on the base 12, and the power input port 126 is connected to, for example, a vehicle power supply. A power supply system (for example, a vehicle power supply) supplies power to the child safety seat 100a through the power input port 126.

[00209] As described above, a base circuit board 124 is disposed on the base 12, and the seat body is provided with the seat circuit board 421. The rotating connector 132 is provided with an electrical slip ring 133. The base circuit board 124 is electrically connected to the seat circuit board 421 via the electrical slip ring 133. Specifically, referring to FIG. 35, the base circuit board 124 is electrically connected to the electrical slip ring 133, for example, via the first wire 124a. The electrical slip ring 133 is electrically connected to the seat circuit board 421, for example, via the second wire 133a. The seat circuit board 421 is electrically connected to the driving mechanism 41, for example, via the third wire 421a. The power input port 126 may be electrically connected to the base circuit board 124, that is, the power supply system is electrically connected to the base circuit board 124.

[00210] As described above, the driving mechanism 41 includes a motor 411 and a plurality of position sensors 4141, and the seat circuit board 421 is configured to drive the motor 411 to run or control the motor 411 to stop running according to a signal from the position sensor 4141. The base circuit board 124 is configured to supply power to the seat circuit board 421 and send a control signal used to control (tilt) angle adjustment of the seat. For a specific structure of the driving mechanism 41, the seat circuit board 421, and the base circuit board 124, reference can be made to the driving mechanism 41, the control mechanism 42, and the operating mechanism 43 in other embodiments of this application.

[00211] By providing the seat circuit board 421, the base circuit board 124, and the electric slide ring 133, in one aspect, pivoting and sliding of the seat body 11 would not affect the wire between the electric sliding ring 133 and the base circuit board 124, and stability of the electrical connection between the sliding ring 2014 and the base circuit board 124 can be ensured. On the other hand, when the seat body 11 pivots and slides, a wire between the seat circuit board 421 and the electric slip ring 133 would not be easily entangled.

[00212] Generally, in the child safety seat, electronic components such as a motor, a sensor, a fan, and a heating net are generally disposed in the seat body, and the power input port 126 and the button panel are generally disposed in the base of the child safety seat. The electronic components and the power input port are respectively connected to the control circuit board formed by a micro controller and its peripheral circuit, and the control circuit board is generally located in the base of the child safety seat. There are six to eight electrically connected wires between the electronic component such as the motor or the sensor and the control circuit board, and there are at least six electrically connected wires between the electronic component such as the fan or the heating apparatus and the control circuit board. Therefore, a harness including six to fifteen wires needs to pass between the base 12 and the seat body 11. When the seat body 11 rotates 360 degrees relative to the base or adjusts the tilt angle of the seat body 11, the harness would be pulled, and entangling between wires is easy to occur, or the wires would interfere with a movable mechanical structure inside the housing of the child safety seat.

[00213] In this embodiment, each of the seat body 11 and the base 12 is provided with a circuit board, that is, the base circuit board 124 and the seat circuit board 421, the base circuit board 124 is configured to connect the power input port and the control button, the seat circuit board 421 is configured to control an electronic component such as the motor, and only two to three power supply wires and control wires are transmitted between the seat circuit board 421 and the base circuit board 124 via the electrical slip ring 133, thereby effectively reducing wire entangling and interference. For example, the remote control apparatus 432 may be wirelessly connected to the base circuit board 124 or the seat circuit board 421 to control operation of the motor 411.

[00214] Referring to FIG. 35, in an embodiment, the seat body 11 includes a backrest section 1103 and a seat section 1104, and the backrest section 1103 is connected to the seat section 1104. In some embodiments, a middle section between the backrest section 1103 and the seat section 1104 is a curved surface of approximately 90 degrees. In some embodiments, the backrest section 1103 and the seat section 1104 together form a substantially L-shaped structure. The seat circuit board 421 is, for example, disposed at a connection between the backrest section 1103 and the seat section 1104. A cavity is formed between the seat circuit board 421 and the rotating member 13, and a second wire 133a between the electrical slip ring 133 and the seat circuit board 421 is suspended in the cavity.

[00215] When the seat body 11 and the rotating member 13 rotate relative to the base 12, the first wire 124a between the electric slip ring 133 and the base circuit board 124 and the third wire 421a between the seat circuit board 421 and the driving mechanism 30 would not move due to force. One end of the second wire 133a between the electrical slip ring 133 and the seat circuit board 421 connected the seat body 11 rotates due to the circumferential force provided by the seat body 11 in the rotation direction, and the other end connected to the electrical slip 133 drives the electrical slip ring 133 to pivot.

[00216] When the seat body 11 slides back and forth relative to the base 12, the first wire 124a does not move due to force. When the seat body 11 slides to a foremost position relative to the base 12, that is, the seat body 11 is in a position with a maximum tilt angle, referring to FIG. 35, as a distance between the electrical slip ring 133 and the seat circuit board 421 (a middle section between the backrest section 1103 and the seat section 1104) reaches a minimum, the second wire 133a is in a relatively loosened state. Meanwhile, the distance between the seat circuit board 421 and the rotating member reaches a maximum, and the third wire 421a is in a relatively tight state. When the seat body 11 slides relative to the base 12 to the last position, that is, the seat body 11 is in a position with a minimum tilt angle, because a distance between the electrical slip ring 133 and the seat circuit board 421 (a middle section between the backrest section 1103 and the seat section 1104) reaches a maximum, the second wire 133a is in a relatively tight state. Meanwhile, the distance from the seat circuit board 421 to the rotating member reaches the minimum, and the third wire 421a is in a relatively loosened state. Therefore, during rotation or sliding back and forth of the seat body 11, the second wire 133a and the third wire 421a are not prone to interfere with each other. The cavity provides receiving space for the second wire 133a which is in a relatively loosened state, so as to prevent the wire from being twisted or hooked on other elements inside the child safety seat due to deformation. [00217] Referring to FIG. 35, in an embodiment, the electrical slip ring 133 is configured so that the extension line of the axis of the electric slip ring 133 always intersects with the seat section 1104 of the seat body 11 during sliding of the seat body 11 relative to the base 12. In this way, a pulling direction and a deformation amplitude of a wire between the electrical slip ring 133 and the seat circuit board 421 are restrained when the seat body slides, so as to prevent the wire from winding around the seat circuit board 421, the electrical slip ring 133, or other components inside the child safety seat.

[00218] Alternatively, the seat circuit board 421 is configured so that projection of the seat circuit board 421 on the base 12 always covers the electrical slip ring 133 during sliding of the seat circuit board 421 relative to the base 12. Therefore, a pulling direction and a deformation amplitude of a wire between the electric slip ring 133 and the seat circuit board 421 are further restrained when the seat body 11 slides, so as to prevent the wire from winding around the seat circuit board 421, the electric slip ring 133, or other components inside the child safety seat. [00219] Referring to FIG. 35, in this embodiment, as described above, the driving mechanism 41 is disposed on the rotating member 13 and extends toward the backrest section 1103 of the seat body 11. The seat circuit board 421 is electrically connected to the driving mechanism 41, for example, via the third wire 421a. The driving mechanism 41 is disposed on the rotating member 13. The seat circuit board 421 slides with the seat body 11, and the driving mechanism 41 pivots with the sliding of the seat body 11, so as to prevent a wire entangling between the driving mechanism 41 and the seat circuit board 421. Further, the driving mechanism 41 is positioned outside a range that can be reached by the second wire 133a between the electrical slip ring 133 and the seat circuit board 421. Therefore, the second wire 133a between the electrical slip ring 133 and the seat circuit board 421 would not wound on the driving mechanism 41.

[00220] The implementation of this embodiment for adjusting the tilt angle of the seat body may also be applied in the first, second and fourth embodiments.

[00221] Fourth embodiment

[00222] A fourth embodiment of this application provides a child carrier, the child carrier is, for example, a child safety seat 100a, a child cart, or the like. The following description will take the child safety seat 100a as an example of the the child carrier. In case of no conflict, the structure of the child safety seat 100a provided in this fourth embodiment can refer to the child safety seat described in the foregoing embodiments.

[00223] The child safety seat 100a may be fastened to the vehicle seat by using a structure such as its own ISOFIX connector and a pull-up belt (also referred to as a top strap), or may be fastened to the vehicle seat by using a vehicle seat belt configured in the vehicle. The child safety seat 100a may be mounted on the vehicle seat in a forward direction, or may be mounted on the vehicle seat in a backward direction. When the child safety seat 100a is mounted on the vehicle seat in a forward direction, the child safety seat 100a is generally applicable to a child of older age group. For a child of younger age group, the child safety seat 100a generally needs to be mounted on the vehicle seat in a backward direction for use.

[00224] FIG. 36 to FIG. 40 are schematic structural diagrams of a child safety seat 100a according to a fourth embodiment of this application. FIG. 36 illustrates a perspective view of the child safety seat 100a. FIG. 37 illustrates a side view of the child safety seat 100a of FIG. 36 when the seat assembly 500 is in a forward using position. FIG. 38 illustrates a side view of the child safety seat 100a of FIG. 36 when the seat assembly 500 is in a backward using position. FIG. 39 illustrates a sectional view taken along Ul-Ul of the child safety seat 100a of FIG. 36 when the seat assembly 500 is in the forward using position. FIG. 40 illustrates a sectional view taken along Ul-Ul of the child safety seat 100 of FIG. 36 when the seat assembly 500 is in the backward using position.

[00225] As shown in FIGS. 36 to 38, the child safety seat 100a includes a base assembly 600 and a seat assembly 500 rotatably disposed on the base assembly 600. The seat assembly 500 includes a seat body 510. An mounting seat 520 is disposed at the bottom of the seat body 510. In some embodiments, the seat body 510 is non-detachably connected to the mounting seat 120. In some alternative embodiments, the mounting seat 520 is detachably connected to the seat body 510 (not shown), which is not limited herein. The mounting seat 520 may rotate relative to the base assembly 600 about the axis of rotation X3-X3, thereby driving the seat body 510 disposed thereon to rotate about the axis of rotation X3-X3, so that the seat body 510 can switch between the forward and backward using positions.

[00226] The child safety seat 100a may further be disposed with an anti-misuse structure 700, and the anti-misuse structure 700 is configured to avoid improper forward- facing mounting of the child safety seat 100a. Specifically, the anti-misuse structure 700 is configured to prevent the seat assembly 500 of the child safety seat 100a from being incorrectly locked in a forward using position when a child of younger age group is seating on the child safety seat 100a. It should be noted that, the seat assembly 500 is located or locked in a "forward using position" means that the seat assembly 500 is located in a forward using position, and the seat assembly 500 faces away from the backrest of the vehicle seat, and the child seating in the seat assembly 500 faces forward of the vehicle. The seat assembly 500 is located or locked in a "backward using position" means that the seat assembly 500 is located in a backward using position, and the seat assembly 500 faces the backrest of the vehicle seat, and the child seating in the seat assembly 500 faces backward of the vehicle.

[00227] In some embodiments, the mounting seat 520 is formed, for example, as part of the seat assembly 500. Referring to FIG. 39 and FIG. 40, for example, a receiving space 501 is formed between the seat body 510 and the mounting seat 520. In some embodiments, the mounting seat 520 and the seat body 510 may be relatively slidably connected, for example, so that the tilt angle of the seat body 510 may be adjusted. For a sliding and connecting structure between the mounting seat 520 and the seat body 510, reference can be made to the sliding and connecting structure between the mounting seat 13 and the seat body 11 in the foregoing third embodiment.

[00228] In some alternative embodiments, the seat assembly 500 is detachably connected, for example, to the mounting seat 520 (not shown), and the mounting seat 520 is rotatably disposed on the base assembly 600 and forms part of the base assembly 600, which is not limited herein.

[00229] It should be further noted that, unless otherwise specified and limited, directional terms such as "front", "back", "top", "bottom", "left", and "right" that are related to the child safety seat 100a in the embodiments of this application are based on the "front", "rear", "upper", "lower", "left", and "right" orientations of the child safety seat 100a when the child safety seat 100a is forward-facing mounted in the vehicle seat and the vehicle is driving normally. In the drawings, arrows L and R are used to illustrate the "left" and "right" , and arrows F and B are used to illustrate the "front" and "back". These directional terms are only used to make the description of the embodiments of this application clearer, and are not intended to improperly limit the scope of protection of this application. It may be understood that, as the seat assembly 500 of the child safety seat 100a has a forward and backward using position, the front, rear, left and right orientations of the seat assembly 500 may vary depending on the position in which the seat assembly 500 is used. Specifically, when the seat assembly 500 is in a forward using position, the front-rear, left-right orientations of the seat assembly 500, the front-rear, left-right orientations of the base assembly 600, and the front-rear, left-right orientations of the vehicle are consistent with each other. When the seat assembly 500 is in a backward using position, the front-rear, left-right orientations of the base assembly 600 are consistent with the front-rear, left-right orientations of the vehicle, and the front-rear, left-right orientations of the seat assembly 500 are opposite to the front-rear, left-right orientations of the vehicle.

[00230] Referring to FIG. 39 and FIG. 40, the base assembly 600 includes a base body 610, the base body 610 includes a first housing 611 and a second housing 612, and the first housing 611 and the second housing 612 are combined to form an accommodating space 618. The second housing 612 forms a bottom surface of the base body 610. The bottom surface of the base body 610 is, for example, a plane, so as to be placed on the vehicle seat. A retaining recess 613 is disposed in the first housing 611, and a retaining protrusion 521 is disposed in the mounting seat 520. A cross-section of the retaining protrusion 521 is approximately circular. The retaining protrusion 521 is at least partially housed in the retaining recess 613 and defines a rotation axis X3-X3 of the seat assembly 500 relative to the base assembly 600.

[00231] As shown in FIGS. 39 and 40, in some embodiments, the child safety seat 100a further includes an engaging mechanism 810 disposed between the base assembly 600 and the seat assembly 500, the engaging mechanism 810 is configured to selectively lock the seat assembly 500 in the forward or backward using position.

[00232] In some embodiments, the engaging mechanism 810 includes an engaging pin 8110, a first engaging hole 8121, a second engaging hole 8122, and an engaging reset member 8130. The engaging pin 8110 is movably disposed in the seat assembly 500 and has an engaging position and a releasing position. In the engaging position, the engaging pin 8110 projects from the surface of the retaining protrusion 521. In the releasing position, the engaging pin 8110 retracts from the surface of the retaining protrusion 521, for example, and it is received inside the surface of the retaining protrusion 521. The engaging reset member 8130 includes, for example, a spring disposed between the engaging pin 8110 and the seat assembly 500. The spring biases the engaging pin 8110 to move toward the engaging position, that is, the spring provides a force for the engaging pin 8110 to move toward the engaging position. The engaging pin 8110 may further cooperate with the operating member (not shown) disposed in the seat assembly 500 to drive the engaging pin 8110 to move toward the releasing position by the operating member.

[00233] When the seat assembly 500 is not rotated to the forward or backward using position, the engaging pin 8110 is in the releasing position under pressure from the inner peripheral surface of the retaining recess 613. When the seat assembly 500 rotates to the forward or backward using position, the engaging pin 8110 projects from the surface of the retaining protrusion 521 and into the first engaging hole 8121 or the second engaging hole 8122, thereby moving to the engaging position, and locking the seat assembly 500 in the corresponding forward using position or the corresponding backward using position. Specifically, referring to FIG. 39, when the engaging pin 8110 is in the engaging position and is engaged with the first engaging hole 8121, the seat assembly 500 is locked in the forward using position. Referring to FIG. 40, when the engaging pin 8110 is in the engaging position and is engaged with the second engaging hole 8122, the seat assembly 500 is locked in the backward using position. When the engaging pin 8110 is in the releasing position, the engaging pin 8110 disengages the first engaging hole 8121 and the second engaging hole 8122 to allow the seat assembly 500 to rotate relative to the base assembly 600.

[00234] Referring to FIG. 46, a restraining wall is formed on a wall of the retaining recess 613, and the restraining wall may be the inner peripheral surface (also referred to as an inner circumferential surface or a sidewall) or a bottom surface of the retaining recess 613. In this embodiment, the restraining wall is a sidewall of the retaining recess 613, that is, an inner peripheral surface of the retaining recess 613. In some alternative embodiments, the restraining wall may be a bottom surface of the retaining recess 613, which is not limited herein.

[00235] In some embodiments, both the first engaging hole 8121 and the second engaging hole 8122 are disposed in the first housing 611 and penetrate through the restraining wall of the retaining recess 613, so that the retaining recess 613 is in communication with the accommodating space 618. That is, the first engaging hole 8121 and the second engaging hole 8122 are disposed on the inner circumferential surface of the retaining recess 613. The first engaging hole 8121 and the second engaging hole 8122 extend in the radial direction of the retaining recess 613, respectively. In some alternative embodiments, the first engaging hole 8121 and the second engaging hole 8122 are disposed on the bottom surface of the retaining recess 613. The first engaging hole 8121 and the second engaging hole 8122 extend, for example, in the axial direction of the retaining recess 613.

[00236] Referring to FIG. 39 and FIG. 40, one of the first engaging hole 8121 and the second engaging hole 8122 is disposed in a front part of the base assembly 600, and the other of the first engaging hole 8121 and the second engaging hole 8122 is disposed in a rear part of the base assembly 600. It should be noted that the front part of the base assembly 600 refers to a part of the base assembly 600 located in front of the rotation axis X3-X3, that is, a part of the base body 610 located in front of the rotation axis X3-X3. The rear part of the base assembly 600 refers to a part of the base assembly 600 located in rear of the rotation axis X3-X3. The base assembly 600 further has a left part on the left side of the rotation axis X3-X3 and a right part on the right side of the rotation axis X3-X3.

[00237] Accordingly, as an example, when the seat assembly 500 is in the forward using position, the seat assembly 500 has a front part located in front of the rotation axis X3-X3, a rear part located in rear of the rotation axis X3-X3, a right part located on the right side of the rotation axis X3-X3, and a left part located on the left side of the rotation axis X3-X3. It should be understood that, when the seat assembly 500 is in a backward using position, left and right orientations of the seat assembly 500 are opposite to left and right orientations of the seat assembly 500 when the seat assembly 500 is in a forward using position.

[00238] As shown in FIG. 39 and FIG. 40, in this embodiment, the first engaging hole 8121 is disposed in rear of the base assembly 600, and the second engaging hole 8122 is disposed in front of the base assembly 600. The engaging pin 8110 is disposed in rear of the seat assembly 500. In some alternative embodiments, the first engaging hole 8121 is disposed in front of the base assembly 600, the second engaging hole 8122 is disposed in rear of the base assembly 600, and the engaging pin 8110 is disposed in front of the seat assembly 500.

[00239] Referring to FIGS. 39 and 40, a piercing port 502 is disposed on the mounting seat 520, and the engaging pin 8110 is slidably disposed in the receiving space 501 and can at least partially extend out of the mounting seat 520 through the piercing port 502 to selectively engage with one of the first engaging hole 8121 and the second engaging hole 8122, thereby enabling the seat assembly 500 to be locked in a forward or backward using position. More specifically, the engaging pin 8110 is slidably disposed on the mounting seat 520 by using the engagement fixing seat 540. The engagement fixing seat 540 is disposed in the receiving space 501. A first accommodating groove 541 is formed between the engagement fixing seat 540 and the mounting seat 520, and a first restraining part 542 is disposed in the first accommodating grooves 541. The first accommodating groove 541 is connected to the engagement piercing port 502. The engaging pin 8110 is in a pin form and is disposed with a second restraining part 8111, and the engaging pin 8110 is disposed in the first accommodating groove 541, and the engaging pin 8110 is at least partially positioned in the first accommodating groove 541 by abutting the second restraining part 8111 with the first restraining part 542. Therefore, a moving stroke of the engaging pin 8110 may be restrained, so that the engaging pin 8110 can be controlled to extend into the first engaging hole 8121 or the second engaging hole 8122 by using the engagement piercing port 502.

[00240] The engaging reset member 8130 is disposed in the first accommodating groove 541. For example, the engaging reset member 8130 is a pressure spring. One end of the engaging reset member 8130 abuts against an end of the first accommodating groove 541, and the other end of the engaging reset member 8130 is sleeved on the engaging pin 8110 and abuts against the second restraining part 8111. The engaging reset member 8130 is suitable for biasing the engaging pin 8110 so that the engaging pin 8110 can move towards the engaging position. In this way, when the engaging pin 8110 is not blocked by the sidewalls of the retaining recess 613, the engaging pin 8110 can automatically move to the engaging position under the elastic restoring force of the engaging reset member 8130, so that when the seat assembly 500 rotates in position (for example, rotates to the backward or forward using position), the engaging pin 8110 automatically extends into the first engaging hole 8121 or the second engaging hole 8122 under the elastic restoring force of the engaging reset member 8130 (for example, a pressure spring), and the seat assembly 500 can be automatically locked in a corresponding position.

[00241] The engaging pin 8110 may be driven to the releasing position by using any suitable releasing mechanism (not shown), that is, the engaging pin 8110 may be released by using any suitable releasing mechanism. Specifically, when the releasing mechanism is operated, the releasing mechanism drives the engaging pin 8110 to move to the releasing position to allow rotation of the seat assembly 500. When the releasing mechanism is not operated, the engaging pin 8110 moves to the engaging position under the elastic restoring force of the engaging reset member 8130, so that the engaging pin 8110 automatically engages with the first engaging hole 8121 or the second engaging hole 8122 under the elastic restoring force of the engaging reset member 8130 when the seat assembly 500 rotates in position (for example, rotates to the backward or forward using position).

[00242] It can be seen from the foregoing that the anti-misuse structure 700 is further disposed between the base assembly 600 and the seat assembly 500. The anti-misuse structure 700 has an on state and an off state. When the anti-misuse structure 700 is in the on state (that is, an anti-misuse function of the anti-misuse structure 700 is enabled), the anti-misuse structure 700 may restrain the seat assembly 500 from a predetermined lateral position to the forward using position, and allow the seat assembly 500 from the lateral position to the backward using position. When the anti-misuse structure 700 is in the off state (that is, the anti-misuse function of the anti-misuse structure 700 is not enabled), the seat assembly 500 may rotate freely around the rotation axis X3-X3 relative to the base assembly 600. By setting the anti-misuse structure 700, rotation of the seat assembly 500 within a predetermined rotation stroke may be restrained, so that the seat assembly 500 is prevented from being incorrectly turned and locked in a forward using position, and children of a younger age group are prevented from being incorrectly seated in the forward-facing mounted child safety seat 100a.

[00243] Referring to FIG. 41 to FIG. 43 and FIG. 46, in some embodiments, the anti-misuse structure 700 includes a restraining member 710, a restraining groove 720, an operating assembly, and a restraining reset member 750. Referring to FIG. 46, the restraining groove 720 is disposed in the base assembly 600. The restraining groove 720 extends around the rotation axis X3-X3, one end (a front end) of the restraining groove 720 is provided with a stopping part 721, and the other end (a rear end) of the restraining groove 720 is provided with a guiding surface 722. The guiding surface 722 is an inclined or circular arc surface that extends from the bottom of the restraining groove 720 to an opening of the restraining groove 720. The restraining member 710 is movably disposed on the mounting seat 520 and is movable between a locked position and an unlocked position.

[00244] Referring to FIG. 41, FIG. 42, and FIG. 46, the restraining member 710 is located in front of the mounting seat 520, and the restraining groove 720 is located at the side of the base assembly 600. When the restraining member 710 is in the locked position (that is, the restraining member 710 is locked with the restraining groove 720), the restraining member 710 extends into the restraining groove 720 to position the seat assembly 500 in a predetermined lateral position corresponding to the restraining groove 720, the predetermined lateral position is located between the forward using position and the backward using position. In this case, the restraining member 710 is adapted to be stopped by the stopping part 721, so that the seat assembly 500 is restrained from a lateral position to the forward using position relative to the base assembly 600, that is, the seat assembly 500 is restrained to rotate toward the stopping part 721 relative to the base assembly 600. As the guiding surface 722 is disposed at the other end of the restraining groove 720, rotation of the seat assembly 500 from the lateral position to the backward using position is not restrained. Specifically, the restraining member 710 is adapted to exit the restraining groove 720 through the guiding surface 722, so that the seat assembly 500 is allowed to rotate from the lateral position to the backward using position, that is, the seat assembly 500 is allowed to be rotated toward the guiding surface 722. In other words, when the restraining member 710 is inserted into the restraining groove 720, the seat assembly 500 is unidirectionally locked (also referred to as half-locked) in a lateral position corresponding to the restraining groove 720. When the restraining member 710 is in the unlocked position, the restraining member 710 is detached from the restraining groove 720, and the restraining member is not interfered with the restraining groove 720, so as to allow any angle adjustment of the seat assembly 500 relative to the base assembly 600.

[00245] When the seat assembly 500 is unidirectionally locked in the lateral position, the restraining groove 720 generates a certain resistance to the restraining member 710, so that the seat assembly 500 can be held in the lateral position. In this way, it is convenient for the child to laterally enter and exit the child safety seat 100a. When a child with a larger size seats, the restraining member 710 needs to be released, and the seat assembly 500 is rotated to the forward using position. When an infant with a smaller size is placed into the seat assembly 500, there is no need to release the restraining member 710, the seat assembly 500 only needs to be rotated forcefully in the direction of the guiding surface 722 (i.e., in the backward using direction), so that the seat assembly 500 may exit the restraining groove 720, thereby disengaging the seat assembly 500 from the lateral position. The cooperation of the restraining member 710 and the restraining groove 720 adds an obstacle to moving the seat assembly 500 to the forward using position when an infant with a smaller size is seated, thereby effectively avoiding erroneous rotation of the seat assembly 500 to the forward using position when the infant with a smaller size is seated.

[00246] It should be noted that the predetermined lateral position may be any angular position between the forward using position and the backward using position. Specifically, when the seat assembly 500 is in the forward using position, a relative angle between the seat assembly 500 and the base assembly 600 is considered to be 0 degrees or 360 degrees. When the seat assembly 500 is in the backward using position, the relative angle between the seat assembly 500 and the base assembly 600 is considered to be 180 degrees, the predetermined lateral position may be that the relative angle between the seat assembly 500 and the base assembly 600 is greater than 0 degrees and less than 180 degrees, and/or the relative angle between the seat assembly 500 and the base assembly 600 is greater than 180 degrees and less than 360 degrees.

[00247] Referring to FIG. 46, the restraining member 710 faces a restraining wall of the retaining recess 613. It can be seen from the foregoing that the restraining wall may be an inner peripheral surface or a bottom surface of the retaining recess 613. In this embodiment, the restraining member 710 faces the inner peripheral surface of the retaining recess 613, that is, the inner peripheral surface of the retaining recess 213 is used as the restraining wall. In some alternative embodiments, the restraining member 710 may face the bottom surface of the retaining recess 613, that is, the bottom surface of the retaining recess 213 is used as a restraining wall, which is not limited herein.

[00248] Referring to FIG. 46, in some embodiments, the restraining groove 720 is disposed on the restraining wall of the retaining recess 613 and is recessed relative to the restraining wall of the retaining recess 613. The stopping part 721 is approximately perpendicular to the bottom wall of the restraining groove 720, an angle between the guiding surface 722 and the bottom wall of the restraining groove 720 is an obtuse angle, and two sides of the guiding surface 722 are respectively connected to the bottom wall of the restraining groove 720 and the restraining wall (more specifically, an inner peripheral surface) of the retaining recess 613.

[00249] In some embodiments, a number of restraining groove 720 is two, and the two restraining grooves 720 are symmetrically distributed on the left and right sides of the base assembly 600 (more specifically, the base body 610), respectively. The predetermined lateral position includes, for example, a left position of the seat assembly 500 toward the left (i.e., a relative angle between the seat assembly 500 and the base assembly 600 is about 90 degrees) and a right position of the seat assembly 500 toward the right (i.e., a relative angle between the seat assembly 500 and the base assembly 600 is about 270 degrees).

[00250] In some embodiments, a direction of the line between the restraining groove 720 and the rotation axis X3-X3 of the seat assembly 500 is substantially perpendicular to the frontrear direction, such that the seat assembly 500 is restrained in the predetermined lateral position perpendicular to the front-rear directions when the restraining member is inserted into the restraining groove 720. The angle between the predetermined lateral position and its adjacent forward or backward using position is approximately 90 degrees.

[00251] Referring to FIG. 46, a resistance surface 760, a second engaging hole 8122, and a first engaging hole 8121 (not shown in FIG. 46, opposite to the second engaging hole 8122) may further be formed on the retaining recess 613. Two resistance surfaces 760 are respectively located on the left and right sides of the retaining recess 613. The two resistance surfaces 760 are respectively located, for example, above the two restraining grooves 720. In some embodiments, the length of the inner circumference of each resistive surface 760 along the retaining recess 613 is approximately 5cm to 15cm. Each resistance surface 760 may be formed by a series of longitudinally arranged grooves. The width of each groove is less than the width of the engaging pin 8110 to avoid locking of the engaging pin 8110 at the resistance surface 760. When the seat assembly 500 rotates near the lateral position relative to the base assembly 600, the engaging pin 8110 abuts the resistance surface 760, so that the resistance of the seat assembly 500 in the rotation direction relative to the base assembly 600 increases, so that the user is prompted that the seat assembly 500 is in the lateral position, and the cooperation of the engaging pin 8110 and the resistance surface 760 also helps to maintain the seat assembly 500 in the lateral position.

[00252] The first engaging hole 8121 and the second engaging hole 8122 are respectively located in front and in rear of the retaining recess 613. As described above, the engaging pin 8110 is configured to lock the seat assembly 500 in the forward or backward using position by selectively cooperating with the first engaging hole 8121 or the second engaging hole 8122. In some embodiments, the first engaging hole 8121 and the second engaging hole 8122, the restraining groove 720, and the resistance surface 760 are located on the inner peripheral surface of the retaining recess 613, and the first engaging hole 8121, the second engaging hole 8122, and the resistance surface 760 are located at a height higher than the restraining groove 720.

[00253] As shown in FIG. 39, FIG. 40, and FIG. 43, the engaging pin 8110 is located in rear of an outer peripheral surface of the retaining protrusion 521 of the seat assembly 500, and the restraining member 710 is located in front of the outer peripheral surface of the retaining protrusion 521, and a wire connecting the engaging pin 8110 and the restraining member 710 passes through, for example, a rotation axis X3-X3 of the seat assembly 500. A height of the engaging pin 8110 is higher than that of the restraining member 710 to avoid interfering with each other. In addition, as shown in FIG. 42, the retaining protrusion 521 is respectively provided with a flange part 770 below the engaging pin 8110 and the restraining member 710, so as to avoid damage to the engaging pin 8110 and the restraining member 710 when the seat assembly 500 is shaking.

[00254] As shown in FIG. 41 to FIG. 44, the restraining member 710 includes a restraining body 711 and a driving protrusion 712. The restraining body 711 is slidably disposed on the mounting seat 520. The restraining body 711 includes a restraining end 713, and the restraining end 713 is configured to cooperate with the restraining groove 720. The mounting seat 520 is provided with a sliding groove 522 and a restraining pass-through outlet 523 connected to the sliding groove 522. The restraining body 711 is slidably disposed in the sliding groove 522. The restraining body 711 is adapted to extend into or exit the restraining groove 720 through the restraining pass-through outlet 523. The driving protrusion 712 is protruded from the restraining body 711 in a direction parallel to the rotation axis X3-X3 of the mounting seat 520, and the driving protrusion 712 is adapted to be pushed by the operating assembly 730 to drive the restraining body 711 to move. In this embodiment, the restraining member 710 is disposed at the retaining protrusion 521. When the restraining member 710 is in the locked position, the restraining end 713 of the restraining member 710 protrudes from the retaining protrusion 521 to lock with the restraining groove 720. When the restraining member 710 is in the unlocked position, the restraining end 713 of the restraining member 710 is returned to the retaining protrusion 521.

[00255] In some alternative embodiments, the outer surface (more specifically, the outer peripheral surface) or the bottom surface of the retaining protrusion 521 is formed as the restraining wall, and the restraining groove 720 is disposed in the retaining protrusion 521 and is recessed relative to the restraining wall of the retaining protrusion . A restraining end 721 and a guiding surface 722 are respectively disposed at two ends of the restraining groove 720. A stopping part 721 is disposed at one end (more specifically, a front end) of the restraining groove 720, and the guiding surface 722 is disposed at the other end (more specifically, a rear end) of the restraining groove 720. An angle between the guiding surface 722 and the bottom wall of the restraining groove 720 is an obtuse angle, and two sides of the guiding surface 722 are respectively connected to the bottom wall and the restraining wall of the restraining groove 720. There are two restraining grooves 720, and the two restraining grooves 720 are symmetrically distributed on the left and right sides of the retaining protrusion 521 of the seat assembly 500. The restraining member 710 is disposed at the retaining recess 613 and has a restraining end 713. When the restraining member 710 is in the locked position, the restraining end 713 of the restraining member 710 extends into the retaining protrusion 521 to lock with the restraining groove 720. When the restraining member 710 is in the unlocked position, the restraining end 713 of the restraining member 710 exits from the retaining protrusion 521. [00256] Referring to FIG. 42 and FIG. 43, in some embodiments, a flange part 770 may be formed in front and/or rear of an outer surface of the retaining protrusion 521, and the flange part 770 is located at a lower end of the outer surface of the retaining protrusion 521, and is located below the restraining member 710 and/or the engaging pin 8110. When the seat assembly 500 is positioned in the forward or backward using position, the front flange part and/or the rear flange part 770 are engaged with the front reinforcing plate 851 and/or the rear reinforcing plate 852, respectively, as described later, so as to enhance the connection strength between the seat assembly 500 and the base assembly 600 in the forward and backward using position.

[00257] As shown in FIG. 43 and FIG. 44, in some embodiments, the restraining reset member 750 is disposed between the restraining member 710 and the mounting seat 520, and the restraining reset member 750 is adapted to bias the restraining member 710 to move the restraining member 710 towards the locking position. Specifically, as described above, the mounting seat 520 is provided with the sliding groove 522, and the restraining pass-through outlet 523 is connected to the sliding groove 522. The restraining member 710 is slidably disposed in the sliding groove 522. The restraining reset member 750 is received in the sliding groove 522, one end of the restraining reset member 750 abuts against the restraining member 710, and the other end abuts against the end of the sliding groove 522 away from the restraining pass-through outlet 523. In this way, when the seat assembly 500 rotates to the predetermined lateral position, the restraining member 710 automatically projects out of the mounting seat 520 and into the restraining groove 720 under an elastic restoring force of the restraining reset member 750.

[00258] As shown in FIG. 41 to FIG. 44, the operating assembly 730 is operatively disposed in the mounting seat 520 and can be switched between a first position and a second position. When the operating assembly 730 is in the first position, the restraining member 710 is restrained to the unlocked position, thereby allowing the seat assembly 500 to rotate at any angle relative to the base assembly 600. In this case, the anti-misuse function of the anti-misuse structure 700 is not enabled. When the operating assembly 730 is in the second position, the restraining member 710 is allowed to switch between the unlocked position and the locked position, and the anti-misuse function of the anti-misuse structure 700 is enabled. Specifically, when the operating assembly 730 is in the second position, and the restraining member 710 is in the locked position (that is, the restraining member 710 extends into the restraining groove 720), the restraining member 710 is restrained by the restraining groove 720, and the seat assembly 500 is positioned (that is, unidirectionally locked) in a predetermined lateral position, thereby restraining the seat component 500 from the predetermined lateral position to the forward using position. At the same time, the seat assembly 500 is allowed to turn from the predetermined lateral position to the backward using position.

[00259] As shown in FIG. 43 to FIG. 45, the operating assembly 730 includes an operating member 731 and a linkage 732, and the operating member 731 is connected to the linkage 732. In this embodiment, the operating member 731 is detachably connected to the linkage 732. In this way, the operating member 731 and the linkage 732 have a relatively simple structure, so that it is convenient to manufacture the operating member 731 and the linkage 732 separately, and it is convenient to disassemble and assemble the operating member 731 and the linkage 732. In some alternative embodiments, the operating member 731 may be fixedly connected to the linkage 732, or may be integrally formed with the linkage 732.

[00260] The operating member 731 is slidably disposed on the mounting seat 520 and is provided with an operable operating part 7311, so as to drive the operating assembly 730 to slide between the first position and the second position by using the operating part 7311. Referring to FIGS. 41 and 43, in a direction parallel to the rotation axis X3-X3, the operating member 731 is generally located above the linkage 732. The mounting seat 520 is provided with a mounting part 524 and an operating groove 525 disposed through the mounting part 524. A side of the mounting part 524 facing the rotation axis X3-X3 of the mounting seat 520 is the inner side 5241, and the inner side 5241 of the mounting part 524 is a circular arc. Referring to FIG. 42 and FIG. 45, an arc part 7316 is further disposed in the operating member 731, and the operating part 7311 is disposed on an arc surface of the arc part 7316. The arc surface of the arc part 7316 is has the same arc as the inside surface 5241 of the mounting part 524. The arc part 7316 is slidably disposed along the inner side 5241, and the operating part 7311 is disposed in the operating groove 525, so as to allow the operating part 7311 to drive the operating member 731 to slide along the inner side 5241, thereby driving the linkage 732 to slide, thus the operating assembly 730 is movable between the first position and the second position.

[00261] As shown in FIG. 43 and FIG. 44, a driving surface 7323 is disposed on the linkage 732. The driving surface 7323 is an inclined surface or an arc surface. Alternatively, the inclined plane includes an inclined plane, a serrated inclined plane, a stepped inclined plane, and the like. The driving surface 7323 is disposed toward the rotation axis X3-X3 of the mounting seat 520, one end of the driving surface 7323 is formed as a first driving end 7321, and the other end of the driving surface 7323 is formed as a second driving end 7322, a distance between the first driving end 7321 and the rotation axis X3-X3 is less than a distance between the second driving end 7322 and the rotation axis X3-X3.

[00262] When the operating assembly 730 is in the first position, the driving surface 7323 abuts the restraining member 710. Specifically, the restraining member 710 abuts the first driving end 7321, the restraining member 710 exits the restraining groove 720, and the restraining member 710 is in the unlocked position. When the operating assembly 730 is in the second position, the driving surface 7323 is separated from or abuts against the restraining member 710. Specifically, the restraining member 710 abuts against the second driving end 7322 or is separated from the driving surface 7323, the restraining member 710 extends into the restraining groove 720, and the restraining member 710 may be switched to the locked position. Thus, the restraining member 710 is allowed to switch between the unlocked position and the locked position. More specifically, when the restraining member 710 extends into or exits the restraining groove 720, the restraining member 710 keeps in contact with the driving surface 7323. During switching of the operating member 730 between the first position and the second position, the restraining member 710 slides along the driving surface 7323, so that the restraining member 710 extends or exits the restraining groove 720.

[00263] Referring to FIG. 39 and FIG. 44, in some embodiments, the anti-misuse structure 700 may further include a positioning assembly 740. The positioning assembly 740 is configured to restrain the operating assembly 730 to the first position or the second position. The positioning assembly 740 includes a positioning member 741 and a positioning spring 742. The positioning member 741 is movably disposed in the mounting seat 520 and has a positioning part 7411 that can extend out of the mounting seat 520. The positioning spring 742 is disposed between the positioning member 741 and the mounting seat 520, and the positioning spring 742 provides an elastic restoring force for the positioning part 741, so that the positioning part 7411 of the mounting seat 520 can extend out of the mounting seat 520. In some embodiments, the movement direction of the positioning member 741 is substantially parallel to the rotation axis X3-X3.

[00264] Referring to FIG. 43 to FIG. 45, the operating member 731 of the operating assembly 730 is provided with a first positioning recess 7312 and a second positioning recess 7313. A positioning protrusion 7314 is disposed between the first positioning recess 7312 and the second positioning recess 7313. The positioning protrusion 7314 continuously transitions with the first positioning recess 7312 and the second positioning recess 7313. The positioning part 7411 selectively cooperates with one of the first positioning recess 7312 and the second positioning recess 7313 to position the operating assembly 730 in the first position or the second position. When the operating assembly 730 is switched between the first position and the second position relative to the base assembly 600, the positioning part 7411 is moved away from the operating member 731 by the operating member 731 (more specifically, the positioning protrusion 7314) of the operating assembly 730 (i.e., moved inside the mounting seat 520 by the operating member 731). After the positioning protrusion 7314 crosses the positioning part 7411, the positioning part 7411 moves in a direction close to the operating member 731 under an elastic restoring force of the positioning spring 742, and cooperates with one of the first positioning recess 7312 and the second positioning recess 7313.

[00265] As shown in FIG. 44 and FIG. 45, in this embodiment, the operating member 731 is located above the positioning member 741, an outer surface of the positioning part 7411 is an arcuate surface, and the arcuate surface has a topmost position 7412. The positioning protrusion 7314 has a bottommost end position 7315. When the topmost position 7412 of the positioning part 7411 crosses the lowermost position 7315 of the positioning protrusion 7314, the positioning member 741 pushes the operating member 731 to move by the arcuate surface of the positioning part 7411 under the elastic restoring force of the positioning spring 742, so that the positioning part 7411 is accommodated in one of the first positioning recess 7312 and the second positioning recess 7313 closer to the positioning part 7411. That is, when the bottommost end position 7315 of the operating assembly 730 crosses the topmost position 7412 of the positioning part 7411, the positioning spring 742 can automatically push the operating assembly 730 to move, so that the first positioning recess 7312 or the second positioning recess 7313 automatically cooperates with the positioning part 7411.

[00266] As shown in FIG. 47, in some embodiments, the child safety seat 100a further includes an indicating mechanism 820. The indicating mechanism 820 includes an indicating apparatus 8230, a first switch 8210, a second switch 8220, a control apparatus 8250 (see FIG. 49), and a battery 8240 (see FIG. 50). Referring to FIG. 50 and FIG. 51, in this embodiment, a receiving slot 617 is disposed in the base body 610, and the receiving slot 617 is recessed relative to a bottom surface of the base body 610. The base assembly 600 further includes a cover 620, and the cover 620 may be opened and closed at an opening of the receiving slot 617. When the cover 620 is in a closed state, a side of the cover 620 that faces away from the receiving slot 617 is flush with the bottom surface of the base body 610. A mounting groove 616 is disposed in the receiving slot 617, and the battery 8240 is detachably disposed in the mounting groove 616. The indicating apparatus 8230, the first switch 8210, the second switch 8220, and the control apparatus 8250 are connected to the battery 8240 via a conductive wire. [00267] As shown in FIG. 50 and FIG. 51, the cover 620 is pivotally connected to the base body 610, and can be connected to the base body 610 by using a locking mechanism 630, so that the cover 620 can be locked in a closed state. The cover 620 has opposite first side 622 and second side 623. The first side 622 is pivotally connected to the base body 610. The locking mechanism 630 is disposed in the base body 610, and the locking mechanism 630 is adapted to engage the cover 620.

[00268] The locking mechanism 630 includes an engaging member 631 operably disposed on the base body 610, and the engaging member 631 is movable between a locking position and a non-locking position. The engaging member 631 has an engaging end 6311. A locking hole 621 is disposed on the cover 620. When the engaging member 631 is in the locking position, the engaging end 6311 extends into the locking hole 621, so as to enable engaging between the cover 620 and the locking mechanism 630. When the engaging member 631 moves from the locking position to the non-locking position, the engaging end 6311 exits the locking hole 621, and the cover 620 can rotate freely between the open state and the close state relative to the base body 610. [00269] In some embodiments, when the cover 620 is in the close state, the second side 623 of the cover 620 is received in the receiving slot, and the locking hole 621 is disposed on the second side 623. The engaging member 631 is slidably disposed in the base body 610, and can be operated. The engaging end 6311 can insert in to the receiving slot 617 and engage with the locking hole 621. The base body 610 is provided with an operating port 6121, and the operating port is disposed in the second housing 612. The engaging member 631 has an engaging operation part 6313, and the engaging operation part 6313 is facing the operating port 6121, so as to operate the engaging 631 to move through the operation port 6121. More specifically, the engaging operation part 6313 extends into the operating port 6121 and can slide in the operating port 6121.

[00270] Referring to FIG. 50 and FIG. 51, the locking mechanism 630 further includes a reset member 632, and the reset member 632 is disposed in the base body 610 and abuts the engaging member 631. The reset part 632 provides elastic restoring force for the engaging part 631, so that the engaging part 631 can move towards the locking position. That is, the reset member 632 can maintain the engaging member 631 in the locked position, so that the engaging end 6311 extends at least partially into the receiving slot. In this embodiment, a wedge-shaped surface 6312 is disposed on the engaging end 6311. During closing of the cover 620 (that is, in a process in which the cover 620 rotates from the open state to the closed state), the second side 623 pushes the wedge-shaped surface 6312 to move the engaging member 631 from the locking position to the non-locking position. When the cover 620 rotates to fully cover the receiving slot (that is, the cover 620 rotates to a close state), the locking hole 621 is facing the engaging end 6311, and the engaging member 631 moves from the non-locking position to the engaging position under action of the reset member 632, so that the engaging end 6311 is engaged with the locking hole 621. In this way, the cover 620 is locked in the closed state.

[00271] As shown in FIG. 47 and FIG. 49, the indicating apparatus 8230 is disposed in the base assembly 600 and is configured to indicate whether the seat assembly 500 is engaged in position. The first switch 8210 is disposed in the base assembly 600 and may be electrically connected to the indicating apparatus 8230 by the control apparatus 8250. The first switch 8210 is configured to detect whether the seat assembly 500 is engaged to the forward using position. The second switch 8220 is disposed in the base assembly 600 and may be electrically connected to the indicating apparatus 8230 by the control apparatus 8250. The second switch 8220 is configured to detect whether the seat assembly 500 is engaged in the backward using position. The control apparatus 8250 generates different indication signals according to the first switch 8210 and the second switch 8220, and the indicating apparatus 8230 performs indication according to different indication signals. Specifically, when the seat assembly 500 is engaged in the forward using position, the first switch 8210 is closed, and the second switch 8220 is open. The control apparatus 8250 receives the close signal of the first switch 8210 and sends the first indication signal to the indicating apparatus 8230, so that the indicating apparatus 8230 responds accordingly. When the seat assembly 500 is engaged in the backward using position, the second switch 8220 is closed, and the first switch 8210 is open. The control apparatus 8250 receives the close signal of the second switch 8220 and sends the second indication signal to the indicating apparatus 8230, so that the indicating apparatus 8230 responds accordingly. When the seat assembly 500 is located between the forward and backward using positions, both the first switch 8210 and the second switch 8220 are open, the indicating apparatus 8230 does not indicate or respond.

[00272] In some embodiments, the indicating apparatus 8230 includes a display screen 8231, and the display screen 8231 is, for example, a capacitive screen. Content displayed on the display screen 8231 may be different text or different colors. For example, content displayed on the display screen 8231 may include "less than 15 months of age" and "not less than 15 months of age". The display screen 8231 is disposed in front of the base assembly 600. Specifically, the front part of the base assembly 600 has a connecting seat (also referred to as a leg connecting part) 6122, and the connecting seat 6122 is provided with a pivotable leg (also referred to as a supporting leg) 6123. The display screen 8231 is disposed, for example, in the connecting seat 6122, and is located above the leg 6123. In this way, the display screen 8231 can be conveniently viewed. Certainly, in another embodiment, the display screen 8231 may be disposed in other positions of the base assembly 600, for example, a left side or a right side of the base assembly 600, which is not limited herein.

[00273] In some alternative embodiments, the indicating apparatus 8230 includes a plurality of indicator lights, and the plurality of indicator lights are connected to the control apparatus 8250. When the seat assembly 500 is in the forward or backward using position, the control apparatus 8250 controls a corresponding indicator light to light up, so as to indicate a position of the seat assembly 500.

[00274] In some alternative embodiments, the indicating mechanism 820 may not be provided with the control apparatus 8250, and the first switch 8210 or the second switch 8220 switch may form a closed loop with the corresponding indicator light to light up the corresponding indicator light.

[00275] In other alternative embodiments, the indicating apparatus 8230 may alert the location of the seat assembly 500 by means of a warning tone or voice. The control apparatus 8250 controls the indicating apparatus 8230 to play a corresponding alert tone or voice prompt. [00276] As shown in FIG. 47, in some embodiments, the child safety seat 100a further includes a driving mechanism 830. The driving mechanism 830 includes a first driving assembly 8310 and a second driving assembly 8320. Referring to FIG. 39, at least a part of the first driving assembly 8310 is movably disposed in the first engaging hole 8121, and the first driving assembly 8310 is adapted to be pushed by the engaging pin 8110 to close the first switch 8210. At least a part of the second driving assembly 8320 is movably disposed in the second engaging hole 8122, and the second driving assembly 8320 is adapted to be pushed by the engaging pin 8110 to close the second switch 8220. When the seat assembly 500 is in the forward using position, the engaging pin 8110 and the first engaging hole 8121 engage to push the first driving assembly 8310 to close the first switch 8210. When the seat assembly 500 is in the backward using position, the engaging pin 8110 and the second engaging hole 8122 engage to push the second drive assembly 8320 to close the second switch 8220.

[00277] Referring to FIG. 39, in some embodiments, a rear stiffener 852 is disposed below the first driving component 8310, and a front stiffener 851 is disposed below the second driving component 8320. The front stiffener 851 and the rear stiffener 852 may be metal pieces having an inner concave arc surface, the inner concave arc surface extends in a direction of the rotational axis X3-X3 and protrudes relative to a lower edge of the retaining recess, so as to engage the flange 770.

[00278] As shown in FIG. 39 and FIG. 47, the first driving assembly 8310 is slidably disposed in the receiving space 618 of the base. When the first engaging hole 8121 is not engaged by the engaging pin 8110, the first driving assembly 8310 extends at least partially into the first engaging hole 8121. The first driving assembly 8310 includes, for example, a first driving member 8311 and a first pushing member 8312. The first driving member 8311 is movably disposed on the base assembly 600 by the first fixing seat 614. The first pushing member 8312 is connected to the first driving member 8311 and moves with the first driving member 8311 to push the first switch 8210 to close. Both the moving direction of the first pushing member 8312 and the moving direction of the first driving member 8311 are parallel to an extension direction of the first engaging hole 8121, and at least a part of the first pushing member 8312 projects laterally from the first driving member 8311.

[00279] Specifically, the first fixing seat 614 is disposed in the receiving space 618 and connected to the second housing 612. A first sliding groove 6141 is disposed on the first fixing seat 614, and a first avoiding groove 6142 is disposed on a sidewall of the first sliding groove

6141. The first switch 8210 is disposed on the first fixing seat 614 and is located outside the first sliding groove 6141. The first sliding groove 6141 is facing the first engaging hole 8121, and the first driving member 8311 is slidably disposed in the first sliding groove 6141. The first pushing member 8312 is connected to the first driving member 8311, and a part of the first pushing member 8312 projects out of the first sliding groove 6141 by the first avoiding groove

6142. The first driving member 8311 has a first cooperating end 83111. When the first engaging hole 8121 is not engaged by the engaging pin 8110, the first cooperating end 83111 extends into the first engaging hole 8121, the first pushing member 8312 is separated from the first switch 8210, and the first switch 8210 is in an open state. In this case, the first cooperating end 83111 and the inner peripheral surface of the retaining recess 613 are flush with or inward to the inner peripheral surface of the retaining recess 613. When the first engaging hole 8121 is engaged with the engaging pin 8110, the first cooperating end 83111 is pushed by the engaging pin 8110 and returned from the first engaging hole 8121 to the first sliding groove 6141, and the first pushing member 8312 moves with the first driving member 8311 and pushes against the first switch 8210, so that the first switch 8210 can be closed.

[00280] Referring to FIG. 39, the first driving member 8311 is pin-shaped. The first driving member 8311 has a first protrusion 83112 that extends laterally and protrudes on an outer side surface of the first driving member 8311, and a first recess 6143 is disposed on a sidewall of the first sliding groove 6141. The first protrusion 83112 cooperates with the first recess 6143 to restrain the first driving member 8311 at least partially to the first sliding groove 6141, so as to avoid the first driving member 8311 being released from the first sliding groove 6141.

[00281] As shown in FIG. 47, the first pushing member 8312 is, for example, a spring or a spring plate, but is not limited thereto. In this way, the first pushing member 8312 can partially buffer the force of pressing the first switch 8210, so as to avoid excessive external force being transmitted to the first switch 8210 and causing damage to the first switch 8210. In some embodiments, the first pushing member 8312 is detachably connected to the first driving member 8311. In another embodiment, the first pushing member 8312 is fixedly connected to the first driving member 8311. Alternatively, the first pushing member 8312 is integrally formed on the first driving member 8311.

[00282] Referring to FIG. 39, a first reset member 8330 is disposed between the first driving member 8311 and the first fixing seat 614, and the first reset member 8330 is adapted to bias the first driving member 8311, so that the first driving member 8311 moves toward a position in which the first cooperating end 83111 of the first driving member 8311 extends into the first engaging hole 8121. Specifically, the first reset member 8330 is, for example, a pressure spring, the first driving member 8311 is disposed with a first retaining groove 83113, and an opening of the first retaining groove 83113 faces a bottom wall of the first sliding groove 6141. One end of the first reset member 8330 is disposed in the first retaining groove 83113, and the other end is in contact with a bottom wall of the first sliding groove 6141.

[00283] As shown in FIG. 39 and FIG. 47, in some embodiments, the second driving assembly 8320 may be slidably disposed in the receiving space 618 of the base. When the second engaging hole 8122 is not engaged by the engaging pin 8110, the second driving assembly 8320 extends at least partially into the second engaging hole 8122. The second driving assembly 8320 includes, for example, a second driving member 8321 and a second pushing member 8322. The second driving member 8321 is movably disposed on the base assembly 600 by the second fixing seat 615. The second pushing member 8322 is connected to the second driving member 8321 and moves with the second driving member 8321 to push the second switch 8220 to close. Both the moving direction of the second pushing member 8322 and the moving direction of the second driving member 8321 are parallel to an extension direction of the second engaging hole 8122, and at least a part of the second pushing member 8322 projects laterally from the second driving member 8321.

[00284] Referring to FIG. 40, the second fixing seat 615 is disposed in the receiving space 618 and connected to the second housing 612. A second sliding groove 6151 is disposed on the second fixing seat 615, and a second avoiding groove (not shown) is disposed on a sidewall of the second sliding groove 6151. A structure of the second fixing seat 615 is basically the same as a structure of the first fixing seat 614. For a structure of the second avoiding groove, reference may be made to a structure of the first avoiding groove 2143. The second switch 8220 is disposed on the second fixing seat 615 and is located outside the second sliding groove 6151. The second sliding groove 6151 is facing the second engaging hole 8122, and the second driving member 8321 is slidably disposed in the second sliding groove 6151. The second pushing member 8322 is connected to the second driving member 8321, and a part of the second pushing member 8322 projects out of the second sliding groove 6151 by the second avoiding groove. The second driving member 8321 has a second cooperating end 83211. When the second engaging hole 8122 is not engaged by the engaging pin 8110, the second cooperating end 83211 extends into the second engaging hole 8122, the second pushing member 8322 is separated from the second switch 8220, and the second switch 8220 is in an open state. In this case, the second cooperating end 83211 is flush with or inward to the inner peripheral surface of the retaining recess 613. When the second engaging hole 8122 is engaged with the engaging pin 8110, the second cooperating end 83211 is pushed by the engaging pin 8110 and returned from the second engaging hole 8122 to the second sliding groove 6151, and the second engaging part 8322 moves with the second driving member 8321 and pushes against the second switch 8220, so that the second switch 8220 can be closed.

[00285] Referring to FIG. 40, in some embodiments, the second driving member 8321 is pin-shaped. The second driving member 8321 has a second protrusion 83212 that extends laterally and protrudes on an outer side surface of the second driving member 8321, and a second recess 6153 is disposed on a sidewall of the second sliding groove 6151. The second protrusion 83212 cooperates with the second recess 6153 to restrain the second driving member 8321 at least partially to the second sliding groove 6151, so as to avoid the second driving member 8311 being released from the second sliding groove 6151.

[00286] As shown in FIG. 47, the second pushing member 8322 is, for example, a spring or a spring plate, but is not limited thereto. In this way, the second pushing member 8322 can partially buffer the force of pressing the second switch 8220, so as to avoid excessive external force being transmitted to the second switch 8220 and causing damage to the second switch 8220. In some embodiments, the second pushing member 8322 is detachably connected to the second driving member 8321. In another embodiment, the second pushing member 8322 is fixedly connected to the second driving member 8321. Alternatively, the second pushing member 8322 is integrally formed on the second driving member 8321.

[00287] Referring to FIG. 39, a second reset member 8340 is disposed between the second driving member 8321 and the second fixing seat 615, and the second reset member 8340 is adapted to bias the second driving member 8321, so that the second driving member 8321 moves toward a position in which the second cooperating end 83211 of the second driving member 8311 extends into the second engaging hole 8122. Specifically, the second reset member 8340 is, for example, a pressure spring, the second driving member 8321 is disposed with a second retaining groove 83213, and an opening of the second retaining groove 83213 faces a bottom wall of the second sliding groove 6151. One end of the second reset member 8340 is disposed in the second retaining groove 83213, and the other end is in contact with a bottom wall of the second sliding groove 6151.

[00288] An operation principle of the child safety seat 100a configured with a seat antimisuse structure 700 according to this application is as follows.

[00289] For a child of a younger age group, the child safety seat 100a needs to be used in backward using position. In this case, an anti-misuse function of the child safety seat 100a may be enabled, that is, the operating assembly 730 of the anti-misuse structure 700 may be moved to the second position along the sliding groove 522.

[00290] When the seat assembly 500 is in the forward using position, the engaging pin 8110 is engaged in the first engaging hole 8121. The engaging pin 8110 pushes the first driving member 8311 out of the first engaging hole 8121, and the first driving member 8311 drives the first pushing member 8312 to move, so that the first pushing member 8312 pushes the first switch 8210 to close, so that the display screen 8231 of the indicating apparatus 8230 displays corresponding content. The caregiver can learn from the content displayed on the display screen 8231 that this mode is not suitable for children of younger age groups. Therefore, the seat assembly 500 needs to be adjusted to be used in the backward using mode.

[00291] In the forward using mode, when the operating assembly 730 moves to the second position, the restraining member 710 of the anti-misuse structure 700 is held in the unlocked position by the restraining wall of the retaining recess 613. To adjust the seat assembly 500 to the backward using position, the engaging pin 8110 is first released by using the releasing mechanism, that is, the engaging pin 8110 exits from the first engaging hole 8121 by using the releasing mechanism, and then the seat assembly 500 is rotated around the rotation axis X3- X3.

[00292] During rotation of the seat assembly 500, the engaging pin 8110 is held in a locked position by a restraining wall of the retaining recess 613. When the seat assembly 500 rotates to a predetermined lateral position, the engaging pin 8110 remains in the releasing position, and the restraining member 710 extends into the restraining groove 720 under an elastic restoring force of the restraining reset member 750 while facing the restraining groove 720, so that the seat assembly 500 cannot rotate reversely. In this case, a child of a younger age group may be placed in the seat assembly 500.

[00293] Then, the seat assembly 500 continues to be rotated, and the restraining member 710 exits the restraining groove 720 along the guiding surface 722 and is restrained in the unlocked position by the restraining wall of the retaining recess 613. When the seat assembly 500 rotates to the backward using position, the engaging pin 8110 is facing the second engaging hole 8122, and the engaging pin 8110 extends into the second engaging hole 8122 under a restoring force of the engaging reset member 8130, thereby locking the seat assembly 500 in the backward using position. In addition, the engaging pin 8110 pushes the second cooperating end 83211 of the second driving member 8321 to move and exit the second engaging hole 8122, and the second driving member 8321 drives the second pushing member 8322 to push the second switch 8220 to close, so that the display screen 8231 displays corresponding content. The caregiver may learn that the child safety seat 100a is in a correct using position according to content displayed on the display screen 8231.

[00294] When the anti-misuse structure 700 is enabled and the seat assembly 500 is in the backward using position, the seat assembly 500 may rotate from the backward using position to a predetermined lateral position by unlocking the engaging pin 8110 with the releasing mechanism. When the seat assembly 500 rotates to a predetermined lateral position, the restraining member 710 extends into the restraining groove 720 under an elastic restoring force of the restraining reset member 750, and the restraining member 710 is blocked by the stopping part 721, thereby restraining the seat assembly 500 to rotate from the predetermined lateral position to the forward using position. In this case, the seat assembly 500 can only rotate from the predetermined lateral position to the backward using position.

[00295] In other words, when the anti-misuse structure 700 is enabled, the seat assembly 500 may rotate from the forward using position to any other position, and cannot rotate from any other position to the forward using position, thereby better preventing the child safety seat 100a from being misused. In particular, in the backward using position, the child safety seat 100a may rotate within a certain rotation stroke, but cannot rotate to the forward using mode, so as to avoid a case in which a caregiver thinks that the seat assembly 500 is stuck in the backward using position and violently rotates the seat assembly 500, thereby improving user experience of the child safety seat 100a.

[00296] For a child of an older age group, the anti-misuse structure 700 function may not be enabled, that is, the operating assembly 730 may be moved to the first position, and the restraining member 710 abuts against the first driving end 7321 of the driving surface 7323, and is restrained in the unlocked position. In this case, the locking pin 8110 can be released by using the locking mechanism, so that the seat assembly 500 can rotate at any angle range.

[00297] The anti-misuse structure 700 provided in this embodiment of this application may also be applied to the first to the third embodiments.

[00298] The technical features of the above described embodiments can be combined arbitrarily. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, all of the combinations of these technical features should be considered as within the scope of the present application, as long as such combinations do not contradict with each other.

[00299] The foregoing embodiments are merely some embodiments of the present application, and descriptions thereof are relatively specific and detailed. However, it should not be understood as a limitation to the patent scope of the present application. It should be noted that, a person of ordinary skill in the art may further make some variations and improvements without departing from the concept of the present application, and the variations and improvements belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the appended claims.

Claims

What is claimed is:

1. A canopy connecting structure of a child carrier, comprising: a driving apparatus having a power output member; a canopy having an active bracket, wherein the active bracket is connected to the power output member; and a control apparatus being in signal connection with the driving apparatus, and configured to control the power output member to drive the active bracket to move, so that the canopy can be expanded or folded, wherein the driving apparatus further comprises an output gear, and the output gear is coaxially connected to the power output member; the output gear has a first end face teeth, the power output member has a second end face teeth, and the first end face teeth and the second end face teeth mesh with each other to allow the output gear to drive the power output member to rotate, wherein the canopy connecting structure further comprises an elastic member, and the elastic member exerts an elastic force to the power output member that causes the power output member to press against the output gear, so that the first end face teeth and the second end face teeth remain meshed with each other; when the power output member is subjected to a circumferential force from the outside, the power output member can rotate relative to the output gear and move in a direction away from the output gear, so that the first end face teeth and the second end face teeth can be disengaged from each other.

2. The canopy connecting structure according to claim 1, wherein at least one of the first end face teeth and the second end face teeth is disposed with an inclined part; and when the power output member is subjected to the circumferential force from the outside, the power output member can rotate relative to the output gear and move in the direction away from the output gear under an action of the inclined part.

3. The canopy connecting structure according to any one of claims 1 or 2, wherein the output gear is coaxially connected to the power output member by a fastener; the fastener is provided with a restraining member, and the elastic member is interposed between the restraining member and the power output member; the power output member has a first stepped hole, and the power output member is sleeved on the fastener through the first stepped hole; the fastener has a first end away from the output gear, the restraining member is disposed near the first end of the fastener, and the first end of the fastener, the restraining member, and the elastic member are located inside the first stepped hole; the first stepped hole comprises a first stepped part and a second stepped part, the first stepped part is closer to the restraining member than the second stepped part, the restraining member is configured to restrain an axial movement stroke of the first stepped part, and the elastic member is interposed between the restraining member part and the second stepped part.

4. The canopy connecting structure according to claim 3, wherein the restraining member has a second stepped hole, the restraining member is sleeved on the fastener through the second stepped hole, and the fastener has a first end located inside the second stepped hole.

5. The canopy connecting structure according to any one of claims 1 to 4, further comprising a position detecting apparatus, wherein the position detecting apparatus is in signal connection with the control apparatus and configured to send a position signal related to a moving position of the active bracket to the control apparatus; and when the active bracket moves to a predetermined position, the control apparatus control the driving apparatus to stop driving the active bracket; the position detecting apparatus comprises a proximity switch, an optoelectronic sensor, a Hall sensor, or an encoder; the power output member has a rotation axis and an annular flange, the power output member is configured to be non-rotatably connected to the active bracket, and the annular flange is provided with at least two detecting ports in a circumferential direction; the position detecting apparatus cooperates with the at least two detecting ports to send the position signal.

6. A child safety seat comprising: a base; a seat body slidably connected to the base, wherein an angle of the seat body relative to the base changes with sliding of the seat body relative to the base; a driving rod disposed on the seat body; and a driving mechanism disposed on the base, wherein the driving mechanism being coupled to the driving rod and being capable of pushing the driving rod to move reciprocally, so as to drive the seat body to slide relative to the base, wherein the base is provided with a sliding rod, a sliding groove is formed in the seat body, the sliding rod can be inserted into the sliding groove, and the sliding rod can slide in the sliding groove to guide sliding of the seat body relative to the base.

7. The child safety seat according to claim 6, wherein the driving mechanism comprises: a motor; a screw coupled to the motor; and a driving block sleeved on the screw and threaded to the screw, wherein the driving block is further pivotably connected to the driving rod, wherein the motor drives the screw to rotate, so that the driving block moves in a longitudinal direction of the screw, and a movement of the driving block in the longitudinal direction of the screw drives the seat body to slide relative to the base, so as to change the angle of the seat body; the driving mechanism further comprises a bracket, the bracket is provided with a receiving slot, and the screw is rotatably disposed in the receiving slot; the motor is fixedly disposed on the bracket and is coupled to the screw, one end of the bracket is pivotally connected to the base, the other end of the bracket is a free end, and the free end is sleeved in a backrest of the seat body.

8. The child safety seat according to any one of claims 6 or 7, wherein the sliding groove is formed as an arc groove, the driving mechanism is pivotally connected to the base, and an extending direction of the driving mechanism relative to a pivotal shaft of the base is orthogonal to a movement direction in which the driving mechanism pushes the driving rod; and a stiffener extending in a vertical direction is disposed in the seat body, the sliding groove is disposed on the stiffener, the seat body and the sliding groove are integral parts, and an inner peripheral wall of the sliding groove is made of plastic.

9. The child safety seat according to any one of claims 6 to 8, wherein a reinforcing member is disposed on an outer side of the sliding groove, the reinforcing member is a sheetlike structure, and the reinforcing member has a through groove corresponding to a shape of the sliding groove, so that the sliding rod can slide in the through groove; two ends of the driving rod are fixedly connected to the reinforcing member.

10. The child safety seat according to any one of claims 6 to 9, wherein the base further comprises a rotating member and a rotating connector; the rotating connector is fixedly connected to the base, and it is pivotably connected to the rotating member, so that the rotating member can rotate relative to the base; the base has a base circuit board, and the seat body has a seat circuit board; the rotating connector is provided with an electrical slip ring; the base circuit board is electrically connected to the seat circuit board via the electrical slip ring; the seat circuit board is configured at a connection between a backrest section and a seat section of the seat body, and a cavity is formed between the seat circuit board and the rotating member; the electrical slip ring is configured so that the extension line through an axial center of the electric slip ring always intersects with the seat section of the seat body during sliding back and forth of the seat body relative to the base.

11. The child safety seat according to claim 10, wherein the driving mechanism is disposed at an end of the rotating member, and extends in a direction toward the backrest section of the seat body; and the seat circuit board is electrically connected to the driving mechanism; and the rotating connector is located in a middle of the rotating member; the seat circuit board is connected to the electrical slip ring via a second wire, and the seat circuit board is connected to the driving mechanism via a third wire; when an angle of the seat body relative to the base increases, the second wire is loosened, and the third wire is tightened; and when the angle of the seat body relative to the base is reduced, the second wire is tightened, and the third wire is loosened.

12. The child safety seat according to any one of claims 10 or 11, wherein there is a gap between the rotating connector and the rotating member, and an upper housing of the base is rotatably held in the gap, the rotating member is rotatably disposed on the base by the rotating connecting member, an edge of the rotating connector has an annular flange, and the annular flange is slidably fitted in an annular groove of the upper housing of the base.

13. A child carrier comprising: a base assembly configured to connect to a vehicle seat; and a seat assembly connected to the base assembly and capable of rotating between forward and backward using positions, wherein the base assembly is provided with a retaining recess, the seat assembly is provided with a retaining protrusion, and the retaining protrusion is rotatably disposed in the retaining recess, so that the seat assembly can rotate relative to the base assembly; a pair of restraining grooves are disposed on one of the retaining recess and the retaining protrusion, a stopping part is disposed on a front end of the restraining groove, and a guiding surface is disposed on a rear end of the restraining groove, a restraining member is disposed on the other of the retaining recess and the retaining protrusion, and the restraining member is movable between a locked position and an unlocked position, so as to lock or unlock with the restraining groove; when the restraining member is in the locked position and the restraining member is inserted into the restraining groove, the stopping part is adapted to prevent the restraining member from moving toward the stopping part, so as to restrain the seat assembly from rotating to the forward using position relative to the base assembly; and the guiding surface is adapted to guide the restraining member toward the guiding surface to allow the seat assembly to rotate to the backward using position relative to the base assembly.

14. The child carrier according to claim 13, wherein an inner wall of the retaining recess facing the restraining member comprises a restraining wall, and the restraining groove is disposed in the restraining wall of the retaining recess; the restraining member is configured to pass through the retaining recess, and the restraining member is adapted to at least partially project out of the retaining protrusion to lock with the restraining groove; the restraining wall of the retaining recess is an inner peripheral surface or a bottom surface of the retaining recess.

15. The child carrier according to any one of claims 13 or 14, wherein the guiding surface is an inclined surface or an arc surface that extends from a bottom of the restraining groove to the restraining wall of the retaining recess; and when the restraining member is inserted into the restraining groove, the seat assembly is restrained to a lateral position between the forward using position and the backward using position.

16. The child carrier according to any one of claims 13 to 15, further comprising an operating assembly, wherein the operating assembly has an operating part and a driving surface, and the operating part is operatively disposed in the mounting seat, so as to drive the operating assembly to switch between a first position and a second position by the operating part; when the operating assembly is in the first position, the driving surface abuts against the restraining member, so as to restrain the restraining member to the unlocked position; and when the operating assembly is in the second position, the restraining member is allowed to switch from the unlocked position to the locked position.

17. The child carrier according to any one of claims 13 to 16, wherein the restraining member comprises a restraining body and a driving protrusion, the restraining body slidably passes through the mounting seat, the driving protrusion protrudes from the restraining body in a direction parallel to a rotation axis of the mounting seat, and the driving protrusion is adapted to be pushed by the operating assembly and move the restraining body; the mounting seat is provided with a mounting part and an operating groove disposed through the mounting part, a side of the mounting part facing the rotation axis of the mounting seat is the inner side, and the inner side of the mounting part is a circular arc, the operating member is slidably disposed along the inner side, and the operating member has an operating part disposed in the operating groove to allow the operating part to drive the operating member to slide along the inner side.

18. The child carrier according to any one of claims 13 to 17, further comprising: an engaging pin slidably disposed on the retaining protrusion; and a first engaging hole and a second engaging hole formed on the retaining recess, wherein the engaging pin selectively engages with one of the first engaging hole and the second engaging hole; when the engaging pin is engaged with the first engaging hole, the seat assembly is locked in the forward using position; and when the engaging pin is engaged with the second engaging hole, the seat assembly is locked in a backward using position, wherein when the restraining member is inserted into the restraining groove, the seat assembly is unidirectionally locked in a lateral position between the forward and backward using positions; the retaining protrusion is provided with a flange part below the engaging pin.