Child restraint system and positioning assembly thereof

Abstract

A child restraint system and its positioning component are disclosed. The positioning component includes a first positioning component and a second positioning component. A first track is disposed on one of the first and second positioning components, and a first slider is disposed on the other of the first and second positioning components, the first slider being slidable along the first track. A second track is disposed on one of the first and second positioning components, and a second slider is disposed on the other of the first and second positioning components, the second slider being slidable along the second track. The first positioning component is configured to rotate and move relative to the second positioning component along the first and second tracks.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to technologies for child restraint systems in vehicles, and in particular, to a child restraint system and a positioning assembly thereof. Prior Art

[0002] Child safety seats are now widely used and are used very frequently. Existing child safety seats are generally fixed to the rear seat of the car. When a child needs to ride, they need to be placed in the child safety seat. However, due to factors such as the size of the car door, the height of the car interior, the distance between the car seat and the car door, and the child's body shape, it is very inconvenient to lift or place the child. The child may even hit his head or hit the car door when the child safety seat is rotated to the side, which greatly reduces the user experience and satisfaction of the child safety seat. Summary of the Invention

[0003] The present application aims to provide a child restraint system and a positioning assembly thereof, which can push a child safety seat or child carrier toward a side of a vehicle door to extend it, thereby facilitating the carrying of a child in or out of the vehicle; or can enable the child safety seat or child carrier to slide toward a side away from the vehicle door when rotated toward a side close to the vehicle door, thereby preventing the child safety seat or child carrier from colliding with the vehicle door.

[0004] To achieve the above objectives, one aspect of the present application provides a positioning assembly. The positioning assembly includes: a first positioning assembly and a second positioning assembly. A first track is disposed on one of the first positioning assembly and the second positioning assembly, and a first slider is disposed on the other of the first positioning assembly and the second positioning assembly. The first slider is configured to slide along the first track. A second track is disposed on one of the first positioning assembly and the second positioning assembly, and a second slider is disposed on the other of the first positioning assembly and the second positioning assembly. The second slider is configured to slide along the second track. The first positioning assembly is configured to rotate and move relative to the second positioning assembly along the first and second tracks. The first track is an arc-shaped track or a circular track, and the second track is a linear track.

[0005] In one embodiment, the positioning assembly further includes a third positioning assembly. The first positioning assembly is slidably disposed on the second positioning assembly. The second positioning assembly is fixedly disposed on the third positioning assembly and is located between the first positioning assembly and the third positioning assembly.

[0006] In one embodiment, the first positioning assembly is provided with a first sliding member and a second sliding member. The second positioning assembly includes at least a first track and a second track.

[0007] In one embodiment, the first track is an arcuate track. The first track is disposed between a point located forward of the front-back centerline of the second positioning assembly and the left-right centerline of the second positioning assembly, or between a point located rearward of the front-back centerline of the second positioning assembly and the left-right centerline of the second positioning assembly. The first track is located on one of the left and right sides of the second positioning assembly. The second track is a linear track extending from the center of the second positioning assembly along the left-right centerline to the other of the left and right sides.

[0008] In one embodiment, the distance from the intersection of the first track and the front-to-back centerline to the center point of the second positioning assembly is greater than the distance from the intersection of the first track and the left-to-right centerline to the center point of the second positioning assembly. The intersection of the first track and the front-to-back centerline is the point located forward of the front-to-back centerline of the second positioning assembly, or the point located rearward of the front-to-back centerline.

[0009] In one embodiment, corresponding to the positioning assembly being in the forward riding mode or the rearward riding mode, the first sliding member is arranged at a first position on the lower surface of the first positioning assembly, and the first position corresponds to the position of the intersection of the first track and the center line of the front-to-back direction; the second sliding member is arranged at a second position on the lower surface of the first positioning assembly, and the second position corresponds to the center point of the second positioning assembly.

[0010] In one embodiment, the first track is an arcuate track, disposed between a point located forward and a point located rearward on the front-rear centerline of the second positioning assembly, and located on one of the left and right sides of the second positioning assembly. The second track is a linear track, extending from the center of the second positioning assembly along the left-right centerline to the other of the left and right sides.

[0011] In one embodiment, the distance between the two intersection points of the first track and the front-to-back centerline is greater than twice the distance from the intersection point of the first track and the left-to-right centerline to the center point of the second positioning assembly.

[0012] In one embodiment, when the positioning assembly is in the forward-facing riding mode or the rearward-facing riding mode, a first sliding member is disposed on the lower surface of the first positioning assembly at a position corresponding to any one of the intersections of the first track and the front-to-back centerline. The second sliding member is disposed on the lower surface of the first positioning assembly at a second position corresponding to the center point of the second positioning assembly.

[0013] In one embodiment, the first track is an annular track disposed around the center point of the second positioning assembly. The second track is a linear track extending from the center point of the second positioning assembly to the left and right sides along a left-right centerline to the exterior of the annular track, or extending to the left and right sides along a direction parallel to the left-right centerline of the second positioning assembly to the exterior of the annular track.

[0014] In one embodiment, the distance between the front end and the rear end of the circular track is greater than the distance between the left end and the right end of the circular track.

[0015] In one embodiment, the first track is an elliptical track centered at the center of the second positioning assembly, the line connecting the front and rear ends of the elliptical track being the major axis of the elliptical track, and the line connecting the left and right ends of the elliptical track being the minor axis of the elliptical track. The second track is a linear track located in the direction of the minor axis of the elliptical track and extending outward from the elliptical track.

[0016] In one embodiment, when the positioning assembly is in the forward riding mode or the rearward riding mode, the first sliding member is arranged on the lower surface of the first positioning assembly at a position corresponding to the rearmost end or the frontmost end of the first track, and the second sliding member is arranged on the lower surface of the first positioning assembly at a position corresponding to the center point of the second positioning assembly.

[0017] In one embodiment, corresponding to the state in which the first positioning component is extended from the left side, the first sliding member is arranged on the lower surface of the first positioning component, at a position corresponding to the rightmost end of the first track, and the second sliding member is arranged on the lower surface of the first positioning component, at a position corresponding to the leftmost end of the second track; and / or, corresponding to the state in which the first positioning component is extended from the right side, the first sliding member is arranged on the lower surface of the first positioning component, at a position corresponding to the leftmost end of the first track, and the second sliding member is arranged on the lower surface of the first positioning component, at a position corresponding to the rightmost end of the second track.

[0018] In one embodiment, corresponding to the state in which the first positioning assembly is withdrawn from the left side, the first sliding member is arranged on the lower surface of the first positioning assembly, at a position corresponding to the rightmost end of the first track, and the second sliding member is arranged on the lower surface of the first positioning assembly, at a position corresponding to the leftmost end of the second track; and / or, corresponding to the state in which the first positioning assembly is withdrawn from the right side, the first sliding member is arranged on the lower surface of the first positioning assembly, at a position corresponding to the leftmost end of the first track, and the second sliding member is arranged on the lower surface of the first positioning assembly, at a position corresponding to the rightmost end of the second track.

[0019] In one embodiment, the length of the second track is equal to the difference between the length of the major axis and the length of the minor axis.

[0020] In one embodiment, the first sliding member is provided with a first bearing, and the first bearing is provided in cooperation with the first track. The second sliding member is provided with a second bearing, and the second bearing is provided in cooperation with the second track.

[0021] In one embodiment, the outer dimension of the first bearing is larger than the outer dimension of the second bearing, or the outer dimension of the first bearing is larger than the width of the second track.

[0022] In one embodiment, the second positioning assembly further includes a third track. The third track is disposed below the second track. The second sliding member is configured to pass through the second track and be inserted into the third track.

[0023] In one embodiment, the third positioning assembly includes a bracket disposed at the bottom of the third positioning assembly. The positioning assembly also includes a first limiting hook and a second limiting hook. The first limiting hook and the second limiting hook are located at the front and rear ends of the third positioning assembly, respectively. The upper ends of the first limiting hook and the upper ends of the second limiting hook respectively extend upward from the second positioning assembly and are configured to cooperate with the first positioning assembly. The lower ends of the first limiting hook and the lower ends of the second limiting hook are respectively fixed to the bracket.

[0024] In one embodiment, at least one locking mechanism is provided on the upper surface of the first positioning component.

[0025] In one embodiment, the first track is an annular track disposed around the center point of the second positioning assembly. The second track is a linear track extending leftward and rightward to the exterior of the first track along a direction parallel to a centerline X of the second positioning assembly in the left-right direction.

[0026] In one embodiment, the distance between the frontmost and rearmost ends of the first track is greater than the distance between the leftmost and rightmost ends of the first track. When the positioning assembly is in the forward-facing riding mode or the rearward-facing riding mode, the first sliding member is disposed on the lower surface of the first positioning assembly at a position corresponding to the rearmost or frontmost end of the first track, and the second sliding member is disposed on the lower surface of the first positioning assembly at a position corresponding to the center point of the second track.

[0027] In one embodiment, the first track is an annular track, which is arranged around the center point of the second positioning assembly, and the distance between the leftmost end and the rightmost end of the first track is greater than the distance between the frontmost end and the rearmost end of the first track.

[0028] The second track is a linear track, extending from the center point of the second positioning assembly forward and backward along the center line Y in the front-to-back direction to the outside of the circular track, or extending forward and backward along a direction parallel to the center line in the front-to-back direction of the second positioning assembly to the outside of the first track.

[0029] In one embodiment, corresponding to the positioning assembly being in the forward riding mode: the first sliding member is arranged on the lower surface of the first positioning assembly, at a position corresponding to the front end of the first track; the second sliding member is arranged on the lower surface of the first positioning assembly, at a position corresponding to the rear end of the second track.

[0030] In one embodiment, corresponding to the state where the first positioning component is extended to the left, the first sliding member is arranged on the lower surface of the first positioning component, at a position corresponding to the leftmost end of the first track, and the second sliding member is arranged on the lower surface of the first positioning component, at a position corresponding to the center point of the second track.

[0031] In one embodiment, corresponding to the state in which the first positioning component is extended to the right, the first sliding member is arranged on the lower surface of the first positioning component at a position corresponding to the rightmost end point of the first track, and the second sliding member is arranged at a position corresponding to the center point of the second track.

[0032] In one embodiment, corresponding to the positioning assembly being in the forward riding mode: the first sliding member is disposed on the lower surface of the first positioning assembly, at a position corresponding to the rearmost end of the first track; the second sliding member is disposed on the lower surface of the first positioning assembly, at a position corresponding to the frontmost end of the second track.

[0033] In one embodiment, corresponding to the state where the first positioning component is withdrawn to the right, the first sliding member is arranged on the lower surface of the first positioning component, at a position corresponding to the rightmost end of the first track, and the second sliding member is arranged on the lower surface of the first positioning component, at a position corresponding to the center point of the second track.

[0034] In one embodiment, corresponding to the state where the first positioning component is withdrawn to the left, the first sliding member is arranged on the lower surface of the first positioning component, at a position corresponding to the leftmost end of the first track, and the second sliding member is arranged on the lower surface of the first positioning component 1, at a position corresponding to the center point of the second track.

[0035] In one embodiment, the first track is an elliptical track centered on the center of the second positioning assembly, and the line connecting the leftmost and rightmost ends of the first track is the major axis of the elliptical track. The second track is a linear track located in the direction of the minor axis of the elliptical track and extending outward from the elliptical track.

[0036] In one embodiment, the first positioning assembly is provided with the first track and the second track; the second positioning assembly is provided with the first sliding member and the second sliding member.

[0037] In one embodiment, the first track is a circular track, which is arranged around the center point of the first positioning component, and the distance between the front end and the rear end of the first track is greater than the distance between the left end and the right end of the first track.

[0038] The second track is a linear track, extending from the center point of the first positioning component along the left-right center line to the left and right to the outside of the first track, or extending to the left and right to the outside of the first track along a direction parallel to the left-right center line of the first positioning component.

[0039] In one embodiment, corresponding to the positioning assembly being in the forward riding mode: the first sliding member is disposed on the upper surface of the second positioning assembly, at a position corresponding to the leftmost end of the first track; the second sliding member is disposed on the upper surface of the second positioning assembly, at a position corresponding to the rightmost end of the second track.

[0040] In one embodiment, corresponding to the state where the first positioning component is extended to the right, the first sliding member is arranged on the upper surface of the second positioning component, the rearmost end of the first track is located at the position corresponding to the first sliding member, the second sliding member is arranged on the upper surface of the second positioning component, and the center point of the second track is located at the position corresponding to the second sliding member.

[0041] In one embodiment, corresponding to the state where the first positioning component is withdrawn to the right, the first sliding member is arranged on the upper surface of the second positioning component, the front end of the first track is located at the position corresponding to the first sliding member, the second sliding member is arranged on the upper surface of the second positioning component, and the center point of the second track is located at the position corresponding to the second sliding member.

[0042] In one embodiment, corresponding to the positioning assembly being in the forward riding mode: the first sliding member is disposed on the upper surface of the second positioning assembly, at a position corresponding to the rightmost end of the first track; the second sliding member is disposed on the upper surface of the second positioning assembly, at a position corresponding to the leftmost end of the second track.

[0043] In one embodiment, corresponding to the state where the first positioning component is extended to the left, the first sliding member is arranged on the upper surface of the second positioning component, the rearmost end of the first track is located at the position corresponding to the first sliding member, the second sliding member is arranged on the upper surface of the second positioning component, and the center point of the second track is located at the position corresponding to the second sliding member.

[0044] In one embodiment, corresponding to the state where the first positioning component is withdrawn to the left, the first sliding member is arranged on the upper surface of the second positioning component, the front end of the first track is located at the position corresponding to the first sliding member, the second sliding member is arranged on the upper surface of the second positioning component, and the center point of the second track is located at the position corresponding to the second sliding member.

[0045] In one embodiment, the first track is an elliptical track centered on the center of the first positioning assembly, and the line connecting the front end and the rear end of the first track is the major axis of the elliptical track. The second track is a linear track located in the direction of the minor axis of the elliptical track and extending outward from the elliptical track.

[0046] In one embodiment, the first track is a circular track, the first track is arranged around the center point of the first positioning component, and the distance between the leftmost end and the rightmost end of the first track is greater than the distance between the frontmost end and the rearmost end of the first track.

[0047] The second track is a linear track, extending from the center point of the first positioning component along the center line in the front-to-back direction to the front and rear parts to the outside of the first track respectively, or extending to the front and rear parts to the outside of the first track respectively along a direction parallel to the center line in the front-to-back direction of the first positioning component.

[0048] In one embodiment, corresponding to the positioning assembly being in the forward riding mode: the first sliding member is arranged on the upper surface of the second positioning assembly, at a position corresponding to the leftmost end of the first track; the second sliding member is arranged on the upper surface of the second positioning assembly, at a position corresponding to the center point of the second track.

[0049] In one embodiment, corresponding to the state where the first positioning component is extended to the left, the first sliding member is arranged on the upper surface of the second positioning component, the front end of the first track is located at the position corresponding to the first sliding member, the second sliding member is arranged on the upper surface of the second positioning component, and the rear end of the second track is located at the position corresponding to the second sliding member.

[0050] In one embodiment, corresponding to the state where the first positioning component is withdrawn to the left, the first sliding member is arranged on the upper surface of the second positioning component, the rearmost end of the first track is located at the position corresponding to the first sliding member, and the second sliding member is arranged on the upper surface of the second positioning component, and the frontmost end of the second track is located at the position corresponding to the second sliding member.

[0051] In one embodiment, corresponding to the positioning assembly being in the forward riding mode: the first sliding member is arranged on the upper surface of the second positioning assembly, at a position corresponding to the rightmost end of the first track; the second sliding member is arranged on the upper surface of the second positioning assembly, at a position corresponding to the center point of the second track.

[0052] In one embodiment, corresponding to the state where the first positioning component is extended to the right, the first sliding member is arranged on the upper surface of the second positioning component, the front end of the first track is located at the position corresponding to the first sliding member, the second sliding member is arranged on the upper surface of the second positioning component, and the rear end of the second track is located at the position corresponding to the second sliding member.

[0053] In one embodiment, corresponding to the state where the first positioning component is withdrawn to the right, the first sliding member is arranged on the upper surface of the second positioning component, the rearmost end of the first track is located at the position corresponding to the first sliding member, and the second sliding member is arranged on the upper surface of the second positioning component, and the frontmost end of the second track is located at the position corresponding to the second sliding member.

[0054] In one embodiment, the first track is an elliptical track centered on the center of the first positioning assembly, and the line connecting the leftmost end and the rightmost end of the first track is the major axis of the elliptical track; the second track is a linear track, located in the direction of the minor axis of the elliptical track, and extends outward from the elliptical track.

[0055] Another aspect of the present application provides a positioning assembly. The positioning assembly includes a first positioning assembly and a second positioning assembly. The positioning assembly further includes a connecting rod, one end of which is pivotally connected to the first positioning assembly and the other end of which is pivotally connected to the second positioning assembly. The connecting rod is configured to enable the first positioning assembly to move vertically and / or horizontally relative to the second positioning assembly.

[0056] In one embodiment, the positioning assembly further includes a third positioning assembly, wherein the second positioning assembly is rotatably disposed on the third positioning assembly and is located between the first positioning assembly and the third positioning assembly.

[0057] In one embodiment, the positioning assembly further includes a locking member, which is configured to lock or release the first positioning assembly and the second positioning assembly.

[0058] In one embodiment, the locking member includes a locking hook and a locking hole. The locking hook is pivotally connected to the first positioning assembly and includes a free end and a locking end. The locking end is configured to engage with the locking hole or release from the locking hole.

[0059] In one embodiment, the first positioning assembly includes an upper body and a lower body, the upper body and the lower body being fixedly connected. The lower body is provided with a first pivot shaft. One end of the first pivot shaft is fixedly connected to the lower body, and the other end of the first pivot shaft is pivotally connected to the portion between the free end and the locking end of the locking hook.

[0060] In one embodiment, the upper base is provided with a button positioned near the free end of the locking hook, and the button is operated to push the free end of the locking hook to rotate about the first pivot axis. A first elastic member is sleeved on the first pivot axis, and the first elastic member is configured to cause the locking end to press against the side wall of the locking hole in the direction in which the button pushes the free end.

[0061] In one embodiment, one side surface of the locking end of the locking hook is an inclined surface, and the side surface is used for the locking end to press against the side wall of the locking hole under the action of the first elastic member when passing through the locking hole, so as to guide the locking end to enter the locking hole.

[0062] In one embodiment, the first end of the connecting rod has a first pivot hole, and the second end of the connecting rod has a second pivot hole. The first positioning assembly is provided with a third pivot shaft, which is pivotally connected to the first pivot hole. The second positioning assembly is fixedly provided with a second pivot shaft, which is pivotally connected to the second pivot hole.

[0063] In one embodiment, a second elastic member is sleeved on the second pivot shaft, and the second elastic member is configured to drive the push rod to push the first positioning assembly to move upward.

[0064] In one embodiment, a support rod is fixedly provided on the second positioning assembly, and the second pivot shaft is provided on the support rod.

[0065] In one embodiment, there are four connecting rods and two support rods, each of which is fixedly mounted on the second positioning assembly at both ends. Each support rod is provided with two second pivot shafts; one end of each second pivot shaft is fixedly connected to the support rod, and the other end of each second pivot shaft is pivotally connected to the second pivot hole of the corresponding connecting rod.

[0066] In one embodiment, a limiting rod is provided between the two support rods, with both ends of the limiting rod being fixedly connected to the two support rods. A limiting groove is provided on the lower surface of the first positioning assembly, and when the first positioning assembly is locked onto the second positioning assembly, the limiting rod is snapped into the limiting groove.

[0067] In one embodiment, each of the support rods is provided with two fixing protrusions, and each of the connecting rods further comprises a fixing hole. One end of each of the second elastic members is fixedly connected to the corresponding fixing protrusion, and the other end of each of the second elastic members is fixedly connected to the fixing hole of the corresponding connecting rod.

[0068] In one embodiment, the length of the connecting rod is set so that the first positioning component extends from one side of the second positioning component.

[0069] In one embodiment, a support rod is fixedly mounted on the second positioning assembly, and a sliding portion is sleeved on the support rod. The sliding portion is spaced apart from the bottom of the second positioning assembly. One end of the connecting rod is pivotally connected to the first positioning assembly, and the other end of the connecting rod is pivotally connected to the sliding portion.

[0070] In one embodiment, there are four connecting rods, two support rods, both ends of each support rod being fixedly mounted on the second positioning assembly, and two sliding portions. Each sliding portion is provided with two second pivot shafts; one end of each second pivot shaft is fixedly connected to the sliding portion, and the other end of each second pivot shaft is pivotally connected to the second pivot hole of the corresponding connecting rod.

[0071] In one embodiment, two support rods are fixedly mounted on the second positioning assembly. A limiting rod is disposed between the two support rods, with both ends of the limiting rod fixedly connected to the two support rods. When the locking end is released from the locking hole, the limiting rod constrains the locking hook to maintain a fixed position.

[0072] In one embodiment, a limiting groove is provided on the lower surface of the first positioning component. When the first positioning component is locked on the second positioning component, the locking end of the locking hook engages with the locking hole, and the limiting rod is inserted into the limiting groove.

[0073] In one embodiment, each of the sliding portions is provided with two fixing protrusions, and each of the connecting rods further comprises a fixing hole. One end of each of the second elastic members is fixedly connected to the corresponding fixing protrusion, and the other end of each of the second elastic members is fixedly connected to the fixing hole of the corresponding connecting rod.

[0074] The present application also provides a child restraint system for installation on a vehicle seat. The child restraint system comprises a child safety seat or a child carrier, and a positioning assembly of either of the above, wherein the child safety seat or child carrier is detachably mounted on the positioning assembly.

[0075] In one embodiment, the upper surface of the first positioning assembly is provided with at least one engaging mechanism, and the child safety seat or the child carrier is configured to engage with or disengage the at least one engaging mechanism.

[0076] In one embodiment, the child restraint system further includes a support leg, and the positioning assembly further includes a third positioning assembly. The second positioning assembly is fixedly mounted on the third positioning assembly and positioned between the first and third positioning assemblies; or the second positioning assembly is rotatably mounted on the third positioning assembly and positioned between the first and third positioning assemblies. One end of the support leg is fixedly connected to the third positioning assembly, and the other end of the support leg is configured to press against the vehicle floor.

[0077] The child restraint system and its positioning assembly provided herein include a first positioning assembly and a second positioning assembly. The first positioning assembly is slidably or pivotally disposed on the second positioning assembly. During actual use, the child restraint system is installed on a vehicle seat. The child safety seat or child carrier is removably or fixedly mounted on the positioning assembly. By rotating the child safety seat or child carrier, the child safety seat or child carrier rotates and moves to a lateral position along with the first positioning assembly in the positioning assembly. The child safety seat or child carrier is then extended to one side, thereby bringing the child safety seat or child carrier closer to the vehicle door, making it easier to carry a child in and out, and improving the user experience and satisfaction of the child restraint system.

[0078] Unless otherwise expressly indicated, the aforementioned features and components may be combined in various non-exclusive combinations. Features described in the context of separate scopes and embodiments may be used together and / or interchangeably. Similarly, features described in the context of a single embodiment may also be provided individually or in any suitable subcombination. These features and components, as well as their operation, will become more apparent in light of the following description and accompanying drawings. However, it should be understood that the following description and drawings are intended to be exemplary and illustrative in nature and non-restrictive. Simple diagram description

[0079] The following description should not be considered limiting in any way. Referring to the drawings, similar components are represented by similar reference numerals:

[0080] Figure 1 is a schematic structural diagram of a positioning assembly according to a first aspect of the present application embodiment;

[0081] Figure 2 is a schematic diagram of a first positioning assembly of the positioning assembly according to an embodiment of the first aspect of the present application;

[0082] Figure 3a shows a schematic structural diagram of the second positioning assembly of the positioning assembly according to an embodiment of the first aspect of the present application, wherein the second positioning assembly is mounted on the third positioning assembly;

[0083] Figure 3b shows a schematic structural diagram of the second positioning assembly of another embodiment of the positioning assembly according to the first aspect of the present application;

[0084] Figure 4 shows a perspective schematic diagram of the positioning assembly in the forward riding mode according to one embodiment of the present application;

[0085] Figure 5 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly when the first positioning assembly extends to the left according to an embodiment of the first aspect of the present application;

[0086] Figure 6 shows a perspective schematic diagram of the first positioning assembly extending to the left side according to the first aspect of an embodiment of the present application;

[0087] Figure 7a shows a schematic structural diagram of the second positioning assembly of the positioning assembly according to yet another embodiment of the first aspect of the present application;

[0088] Figure 7b shows a schematic structural diagram of the second positioning assembly of the positioning assembly according to yet another embodiment of the first aspect of the present application;

[0089] Figure 8 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly when the first positioning assembly extends to the right according to yet another embodiment of the first aspect of the present application;

[0090] Figure 9 shows a perspective schematic diagram of the first positioning assembly extending to the right side according to yet another embodiment of the first aspect of the present application;

[0091] Figure 10 shows a schematic structural diagram of the second positioning assembly of the positioning assembly according to the second aspect of the embodiment of the present application;

[0092] Figure 11 shows a schematic structural diagram of the second positioning assembly of the positioning assembly according to the second aspect of an embodiment of the present application;

[0093] Figure 12 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly when the first positioning assembly extends to the left according to an embodiment of the second aspect of the present application;

[0094] Figure 13 shows a perspective schematic diagram of the positioning assembly in the rear-facing riding mode according to an embodiment of the present application;

[0095] Figure 14 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly when the positioning assembly is in the rear-facing riding mode according to an embodiment of the second aspect of the present application;

[0096] Figure 15 shows a schematic structural diagram of the second positioning assembly of another embodiment of the positioning assembly according to the second aspect of the present application;

[0097] Figure 16 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly when the first positioning assembly extends to the right according to another embodiment of the second aspect of the present application;

[0098] Figure 17 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly when the positioning assembly is in the rear-facing riding mode according to another embodiment of the second aspect of the present application;

[0099] Figure 18a shows a schematic structural diagram of the second positioning assembly of the positioning assembly according to an embodiment of the third aspect of the present application, wherein the first track is a circular track;

[0100] Figure 18b shows a schematic structural diagram of a second positioning assembly of a positioning assembly according to another embodiment of the third aspect of the present application, wherein the first track is an elliptical track;

[0101] Figure 19 shows a cross-sectional schematic diagram of a positioning assembly according to an embodiment of the present application, and an enlarged schematic diagram of points A and B in the cross-sectional diagram;

[0102] Figure 20 shows a cross-sectional schematic diagram of another perspective of the positioning assembly according to an embodiment of the present application;

[0103] Figure 21 shows a schematic structural diagram of the second positioning assembly according to yet another embodiment of the third aspect of the present application;

[0104] Figure 22 shows a schematic structural diagram of the first positioning assembly according to yet another embodiment of the third aspect of the present application;

[0105] Figure 23 shows a schematic diagram of the three-dimensional structure of the positioning assembly in the forward riding mode according to the third aspect of yet another embodiment of the present application;

[0106] Figure 24 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly corresponding to those on the second positioning assembly when the first positioning assembly faces leftward and moves forward according to yet another embodiment of the third aspect of the present application;

[0107] Figure 25 shows a schematic diagram of the three-dimensional structure of the first positioning assembly facing left and forward according to yet another embodiment of the third aspect of the present application;

[0108] FIG26 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly corresponding to those on the second positioning assembly when the positioning assembly is in the rear-facing riding mode according to yet another embodiment of the third aspect of the present application;

[0109] Figure 27 shows a schematic diagram of the three-dimensional structure of the positioning assembly in the rear-facing riding mode according to yet another embodiment of the third aspect of the present application;

[0110] Figure 28 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly corresponding to those on the second positioning assembly when the first positioning assembly faces rightward and moves backward according to yet another embodiment of the third aspect of the present application;

[0111] Figure 29 shows a schematic diagram of the three-dimensional structure of the first positioning assembly facing right and moving backward according to yet another embodiment of the third aspect of the present application;

[0112] Figure 30 shows a schematic structural diagram of the second positioning assembly according to the fourth aspect of an embodiment of the present application;

[0113] Figure 31 shows a schematic structural diagram of a first positioning assembly according to a fourth aspect of an embodiment of the present application;

[0114] Figure 32 shows a schematic diagram of the three-dimensional structure of the positioning assembly in the forward riding mode according to the fourth aspect of an embodiment of the present application;

[0115] Figure 33 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly corresponding to the positions on the second positioning assembly when the first positioning assembly extends to the left according to an embodiment of the fourth aspect of the present application;

[0116] Figure 34 shows a schematic diagram of the three-dimensional structure when the first positioning assembly extends to the left side according to the fourth aspect of an embodiment of the present application;

[0117] FIG35 is a schematic structural diagram showing the positions of the first sliding member and the second sliding member of the first positioning assembly corresponding to the positions on the second positioning assembly when the positioning assembly is in the rear-facing riding mode according to an embodiment of the fourth aspect of the present application;

[0118] Figure 36 shows a schematic diagram of the three-dimensional structure of the positioning assembly in the rear-facing riding mode according to the fourth aspect of an embodiment of the present application;

[0119] Figure 37 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly corresponding to those on the second positioning assembly when the first positioning assembly extends to the right according to an embodiment of the fourth aspect of the present application;

[0120] Figure 38 shows a schematic diagram of the three-dimensional structure of the first positioning assembly extending to the right side according to the fourth aspect of an embodiment of the present application;

[0121] Figure 39 shows a schematic structural diagram of the second positioning assembly according to yet another embodiment of the fourth aspect of the present application;

[0122] Figure 40 shows a schematic structural diagram of the first positioning assembly according to yet another embodiment of the fourth aspect of the present application;

[0123] Figure 41 shows a schematic diagram of the three-dimensional structure of the positioning assembly in the forward riding mode according to the fourth aspect of yet another embodiment of the present application;

[0124] Figure 42 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly corresponding to those on the second positioning assembly when the first positioning assembly is withdrawn to the right according to yet another embodiment of the fourth aspect of the present application;

[0125] Figure 43 shows a schematic diagram of the three-dimensional structure of the first positioning assembly when exiting to the right according to yet another embodiment of the fourth aspect of the present application;

[0126] FIG44 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly corresponding to those on the second positioning assembly when the positioning assembly is in the rear-facing riding mode according to yet another embodiment of the fourth aspect of the present application;

[0127] Figure 45 shows a schematic diagram of the three-dimensional structure of the positioning assembly in the rear-facing riding mode according to yet another embodiment of the fourth aspect of the present application;

[0128] Figure 46 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly corresponding to those on the second positioning assembly when the first positioning assembly is withdrawn to the left according to yet another embodiment of the fourth aspect of the present application;

[0129] Figure 47 shows a schematic diagram of the three-dimensional structure of the first positioning assembly when exiting to the left according to yet another embodiment of the fourth aspect of the present application;

[0130] Figure 48 shows a schematic structural diagram of the second positioning assembly according to yet another embodiment of the fourth aspect of the present application;

[0131] Figure 49 shows a schematic structural diagram of the first positioning assembly according to yet another embodiment of the fourth aspect of the present application;

[0132] Figure 50 shows a schematic diagram of the three-dimensional structure of the positioning assembly in the forward riding mode according to the fourth aspect of the present application;

[0133] Figure 51 shows a schematic structural diagram of the positions of the first sliding member and the second sliding member of the first positioning assembly corresponding to those on the second positioning assembly when the first positioning assembly faces leftward and moves forward according to yet another embodiment of the fourth aspect of the present application;

[0134] Figure 52 shows a schematic diagram of the three-dimensional structure of the first positioning assembly facing left and forward according to yet another embodiment of the fourth aspect of the present application;

[0135] FIG53 is a schematic structural diagram showing the positions of the first sliding member and the second sliding member of the first positioning assembly corresponding to those on the second positioning assembly when the positioning assembly is in the rear-facing riding mode according to yet another embodiment of the fourth aspect of the present application;

[0136] Figure 54 shows a schematic diagram of the three-dimensional structure of the positioning assembly in the rear-facing riding mode according to the fourth aspect of the present application;

[0137] FIG55 is a schematic structural diagram showing the positions of the first sliding member and the second sliding member of the first positioning assembly corresponding to those on the second positioning assembly when the first positioning assembly faces rightward and moves backward according to yet another embodiment of the fourth aspect of the present application;

[0138] Figure 56 shows a schematic diagram of the three-dimensional structure of the first positioning assembly facing right and moving backward according to the fourth aspect of the present application;

[0139] Figure 57 shows a schematic structural diagram of the first positioning assembly according to the fifth aspect of an embodiment of the present application;

[0140] Figure 58 shows a schematic structural diagram of the second positioning assembly according to the fifth aspect of an embodiment of the present application;

[0141] FIG59 shows a schematic top view of a first positioning assembly according to an embodiment of the fifth aspect of the present application, wherein the dashed lines indicate the first track and the second track provided on the lower surface of the first positioning assembly, and the components on the upper surface of the first positioning assembly are omitted;

[0142] Figure 60 shows a schematic structural diagram of the positioning assembly in a forward-facing riding mode according to an embodiment of the fifth aspect of the present application, wherein the dashed lines indicate the first and second tracks provided on the lower surface of the first positioning assembly, and components on the upper surface of the first positioning assembly are omitted;

[0143] Figure 61 shows a schematic diagram of the three-dimensional structure of the positioning assembly in the forward riding mode according to the fifth aspect of an embodiment of the present application;

[0144] Figure 62 shows a schematic structural diagram of the first positioning assembly when it is extended to the right according to an embodiment of the fifth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0145] Figure 63 shows a schematic diagram of the three-dimensional structure of the first positioning assembly extending to the right side according to the fifth aspect of an embodiment of the present application;

[0146] FIG64 is a schematic diagram illustrating the structure of a positioning assembly in a rear-facing riding mode according to an embodiment of the fifth aspect of the present application, wherein the dashed lines indicate the first and second tracks provided on the lower surface of the first positioning assembly, and components on the upper surface of the first positioning assembly are omitted;

[0147] Figure 65 shows a schematic diagram of the three-dimensional structure of the positioning assembly in the rear-facing riding mode according to the fifth aspect of an embodiment of the present application;

[0148] FIG66 shows a schematic structural diagram of the first positioning assembly facing leftward and exiting toward rightward according to an embodiment of the fifth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0149] Figure 67 shows a schematic diagram of the three-dimensional structure of the first positioning assembly facing left to right when exiting according to the fifth aspect of the present application;

[0150] Figure 68 shows a schematic structural diagram of the second positioning assembly according to yet another embodiment of the fifth aspect of the present application;

[0151] FIG69 is a schematic structural diagram of a positioning assembly in a forward-facing riding mode according to yet another embodiment of the fifth aspect of the present application, wherein the dashed lines indicate the first and second tracks provided on the lower surface of the first positioning assembly, and components on the upper surface of the first positioning assembly are omitted;

[0152] Figure 70 shows a schematic structural diagram of the first positioning assembly facing rightward and exiting toward the leftward according to yet another embodiment of the fifth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0153] FIG71 is a schematic structural diagram of a positioning assembly in a rear-facing riding mode according to yet another embodiment of the fifth aspect of the present application, wherein the dashed lines indicate the first and second tracks provided on the lower surface of the first positioning assembly, and components on the upper surface of the first positioning assembly are omitted;

[0154] FIG72 shows a schematic structural diagram of the first positioning assembly when it is extended to the left according to yet another embodiment of the fifth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0155] Figure 73 shows a schematic structural diagram of the second positioning assembly according to yet another embodiment of the fifth aspect of the present application;

[0156] FIG74 is a schematic structural diagram of a positioning assembly in a forward-facing riding mode according to yet another embodiment of the fifth aspect of the present application, wherein the dashed lines indicate the first and second tracks provided on the lower surface of the first positioning assembly, and components on the upper surface of the first positioning assembly are omitted;

[0157] FIG75 shows a schematic structural diagram of a first positioning assembly extending rearward toward the right side according to yet another embodiment of the fifth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0158] FIG76 shows a schematic structural diagram of a positioning assembly in a rear-facing riding mode according to yet another embodiment of the fifth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0159] FIG77 shows a schematic structural diagram of the first positioning assembly facing leftward and extending backward according to yet another embodiment of the fifth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0160] Figure 78 shows a schematic structural diagram of the first positioning assembly according to the sixth aspect of an embodiment of the present application;

[0161] Figure 79 shows a schematic structural diagram of the second positioning assembly according to the sixth aspect of an embodiment of the present application;

[0162] Figure 80 shows a schematic top view of a first positioning assembly according to an embodiment of the sixth aspect of the present application, wherein the dashed lines indicate the first track and the second track provided on the lower surface of the first positioning assembly, and all components on the upper surface of the first positioning assembly are omitted;

[0163] Figure 81 shows a schematic structural diagram of the positioning assembly in a forward-facing riding mode according to an embodiment of the sixth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0164] Figure 82 shows a schematic structural diagram of the first positioning assembly facing rightward and exiting leftward according to an embodiment of the sixth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0165] FIG83 shows a schematic structural diagram of the positioning assembly in a rear-facing riding mode according to an embodiment of the sixth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0166] Figure 84 shows a schematic structural diagram of the first positioning assembly when it is extended to the left according to an embodiment of the sixth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0167] Figure 85 shows a schematic structural diagram of the second positioning assembly according to yet another embodiment of the sixth aspect of the present application;

[0168] FIG86 is a schematic structural diagram of a positioning assembly in a forward-facing riding mode according to yet another embodiment of the sixth aspect of the present application, wherein the dashed lines indicate the first and second tracks provided on the lower surface of the first positioning assembly, and components on the upper surface of the first positioning assembly are omitted;

[0169] Figure 87 shows a schematic structural diagram of a first positioning assembly extending toward the right side according to yet another embodiment of the sixth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0170] FIG88 shows a schematic structural diagram of a positioning assembly in a rear-facing riding mode according to yet another embodiment of the sixth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0171] FIG89 shows a schematic structural diagram of the first positioning assembly facing leftward and exiting toward the rightward according to yet another embodiment of the sixth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0172] Figure 90 shows a schematic structural diagram of the first positioning assembly according to another embodiment of the sixth aspect of the present application;

[0173] Figure 91 shows a schematic structural diagram of the second positioning assembly according to another embodiment of the sixth aspect of the present application;

[0174] Figure 92 shows a schematic top view of a first positioning assembly according to another embodiment of the sixth aspect of the present application, wherein the dashed lines indicate the first and second rails provided on the lower surface of the first positioning assembly, and all components on the upper surface of the first positioning assembly are omitted;

[0175] FIG93 shows a schematic structural diagram of the positioning assembly in a forward-facing riding mode according to another embodiment of the sixth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0176] FIG94 shows a schematic structural diagram of a first positioning assembly extending toward the right and rearward according to another embodiment of the sixth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0177] FIG95 shows a schematic structural diagram of the positioning assembly in a rear-facing riding mode according to another embodiment of the sixth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0178] FIG96 shows a schematic structural diagram of the first positioning assembly facing leftward and extending rearward according to another embodiment of the sixth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0179] Figure 97 shows a schematic structural diagram of the second positioning assembly according to yet another embodiment of the sixth aspect of the present application;

[0180] FIG98 shows a schematic structural diagram of a positioning assembly in a forward-facing riding mode according to yet another embodiment of the sixth aspect of the present application, wherein all components on the upper surface of the first positioning assembly are omitted;

[0181] Figure 99 is a schematic diagram of the three-dimensional structure of a positioning assembly according to the seventh aspect of the present application;

[0182] Figure 100 shows a schematic perspective structural diagram of a positioning assembly of a child safety seat installed according to a seventh aspect of the present application;

[0183] Figure 101 shows a side sectional schematic diagram of the positioning assembly in a locked state according to the seventh aspect of an embodiment of the present application;

[0184] Figure 102 shows a side sectional schematic diagram of the positioning assembly in an unlocked state according to the seventh aspect of an embodiment of the present application;

[0185] Figure 103 shows a schematic structural diagram of the second positioning assembly of the positioning assembly according to the seventh aspect of an embodiment of the present application;

[0186] Figure 104 shows a schematic diagram of the connection between the first positioning assembly and the second positioning assembly of the positioning assembly according to the seventh aspect of an embodiment of the present application;

[0187] Figure 105 shows a side perspective schematic diagram of the positioning assembly after the lock is released according to the seventh aspect of an embodiment of the present application;

[0188] Figure 106 shows a side sectional schematic diagram of the positioning assembly in the release lock according to the seventh aspect of an embodiment of the present application;

[0189] Figure 107 shows a cross-sectional schematic diagram of the first positioning assembly extending to one side according to the seventh aspect of an embodiment of the present application;

[0190] Figure 108 shows a partial perspective schematic diagram of the first positioning assembly extending to one side according to the seventh aspect of an embodiment of the present application;

[0191] Figure 109 shows a side schematic diagram of a child restraint system equipped with a child safety seat according to a seventh aspect of the present application;

[0192] Figure 110 shows a perspective schematic diagram of a child restraint system equipped with a child safety seat according to a seventh aspect of the present application;

[0193] FIG111 shows a perspective schematic diagram of a child restraint system with a child safety seat installed according to an embodiment of the seventh aspect of the present application, wherein the child safety seat extends to the left;

[0194] FIG112 shows a perspective schematic diagram of a child restraint system with a child safety seat installed according to an embodiment of the seventh aspect of the present application, wherein the child safety seat extends to the right;

[0195] Figure 113 shows a perspective schematic diagram of a child restraint system equipped with a child carrier according to a seventh aspect of the present application;

[0196] FIG114 shows a perspective schematic diagram of a child restraint system equipped with a child carrier according to an embodiment of the seventh aspect of the present application, wherein the child carrier extends to the left;

[0197] Figure 115 shows a three-dimensional schematic diagram of a child restraint system equipped with a child carrier according to an embodiment of the seventh aspect of the present application, wherein the child carrier extends to the right. Implementation Method

[0198] With reference to the drawings, one or more embodiments of the invention are described herein in detail, by way of illustration and not limitation.

[0199] An embodiment of the present application provides a positioning assembly 100a. The positioning assembly 100a includes a first positioning assembly 1 and a second positioning assembly 2. A first track is disposed on one of the first positioning assembly 1 and the second positioning assembly 2, and a first slider is disposed on the other of the first positioning assembly 1 and the second positioning assembly 2. The first slider is configured to slide along the first track. A second track is disposed on one of the first positioning assembly 1 and the second positioning assembly 2, and a second slider is disposed on the other of the first positioning assembly 1 and the second positioning assembly 2. The first positioning assembly 1 is configured to rotate and move relative to the second positioning assembly 2 along the first and second tracks. The first track is an arc-shaped track or a circular track, and the second track is a linear track. In the embodiment of the present application, the positioning assembly 100a can be, for example, a base, the first positioning assembly 1 can be a turntable of the base, and the second positioning assembly 2 can be a base of the base. The turntable can rotate and move relative to the base. As shown in Figures 1-3, 5, 7a-7b, 11, 15, and 18a-18b, the positioning assembly 100a includes a first positioning assembly 1 and a second positioning assembly 2. A first track (21E1, 21E2 in Figure 3a, 21E1', 21E2' in Figure 3b, 21E3, 21E4 in Figure 10, 21E5 in Figure 18a, 21E6 in Figure 18b, 21E8 in Figure 21, or 21E7 in Figure 30) is disposed on one of the first positioning assembly 1 and the second positioning assembly 2, such as the second positioning assembly 2. A first sliding member 121a (as shown in Figure 2) is disposed on the other of the first positioning assembly 1 and the second positioning assembly 2, such as the first positioning assembly 1. The first sliding member 121a is configured to slide along a first track (21E1 and 21E2 in FIG. 3a, 21E1' and 21E2' in FIG. 3b, 21E3 and 21E4 in FIG. 10, 21E5 in FIG. 18a, 21E6 in FIG. 18b, 21E8 in FIG. 21, or 21E7 in FIG. 30). A second track (22E1 and 22E2 in FIG. 3a, 22E1' and 22E2' in FIG. 3b, 22E3 and 22E4 in FIG. 10, 22E5 in FIG. 18a, 22E6 in FIG. 18b, 22E8 in FIG. 21, or 22E7 in FIG. 30) is provided on one of the first positioning assembly 1 and the second positioning assembly 2, such as the second positioning assembly 2. The second sliding member 121b is provided on the other of the first positioning assembly 1 and the second positioning assembly 2, such as the first positioning assembly 1, as shown in FIG. 2.The second sliding member 121b is configured to slide along the second track (22E1, 22E2 in FIG. 3a, 22E1', 22E2' in FIG. 3b, 22E3, 22E4 in FIG. 10, 22E5 in FIG. 18a, 22E6 in FIG. 18b, 22E8 in FIG. 21, or 22E7 in FIG. 30). The first positioning assembly 1 is configured to rotate and move relative to the second positioning assembly 2 along a first track ( 21E1 and 21E2 in FIG. 3a , 21E1′ and 21E2′ in FIG. 3b , 21E3 and 21E4 in FIG. 10 , 21E5 in FIG. 18a , 21E6 in FIG. 18b , 21E8 in FIG. 21 , or 21E7 in FIG. 30 ) and a second track ( 22E1 and 22E2 in FIG. 3a , 22E1′ and 22E2′ in FIG. 3b , 22E3 and 22E4 in FIG. 10 , 22E5 in FIG. 18a , 22E6 in FIG. 18b , 22E8 in FIG. 21 , or 22E7 in FIG. 30 ).

[0200] The positioning assembly 100a of the present application includes a first positioning assembly 1 and a second positioning assembly 2. By setting a first track (21E1 and 21E2 in FIG. 3a, 21E1' and 21E2' in FIG. 3b, 21E3 and 21E4 in FIG. 10, 21E5 in FIG. 18a, 21E6 in FIG. 18b, 21E8 in FIG. 21, or 21E7 in FIG. 30) on one of the first positioning assembly 1 and the second positioning assembly 2, a first sliding member 121a is set on the other of the first positioning assembly 1 and the second positioning assembly 2. The first sliding member 121a is configured to be able to move along the first track (21E1 and 21E2 in FIG. 3a, 21E1' and 21E2' in FIG. 3b, 21E3 and 21E4 in FIG. 10, 21E5 in FIG. 18a, 21E6 in FIG. 18b, 21E8 in FIG. 21, 30 ), and by arranging a second track (22E1, 22E2 in FIG. 3a , 22E1′, 22E2′ in FIG. 3b , 22E3, 22E4 in FIG. 10 , 22E5 in FIG. 18a , 22E6 in FIG. 18b , 22E8 in FIG. 21 , or 22E7 in FIG. 30 ) on one of the first positioning assembly 1 and the second positioning assembly 2, arranging a second sliding member 121 b on the other of the first positioning assembly and the second positioning assembly 2, the second sliding member 121 b being configured to be able to slide along the second track (22E1, 22E2 in FIG. 3a , 22E1′, 22E2′ in FIG. 3b , 22E3, 22E4 in FIG. 10 , 22E5 in FIG. 18a , 22E6 in FIG. 18b , 22E8 in FIG. 21 , or 22E7 in FIG. 30 ). 10, 22E5 in FIG18a, 22E6 in FIG18b, 22E8 in FIG21, or 22E7 in FIG30) slides so that the first positioning assembly 1 can rotate and move relative to the second positioning assembly 2 along the first track and the second track.

[0201] In one embodiment, the positioning assembly 100a further includes a third positioning assembly 3. The second positioning assembly 2 is fixedly mounted on the third positioning assembly 3 and positioned between the first positioning assembly 1 and the third positioning assembly 3. In one embodiment, the third positioning assembly 3 is stationary. In actual use of the present application, as shown in Figures 1 and 31, the second positioning assembly 2 is fixedly mounted on the third positioning assembly 3. The positioning assembly 100a is mounted on the car seat by mounting the third positioning assembly 3, and the support legs 300 securely attach the positioning assembly 100a to the car floor. The child safety seat 200 (as shown in Figure 110) or the child carrier 400 (as shown in Figure 113) is removably mounted on the first positioning assembly 1. By rotating the child safety seat 200 or child carrier 400, the child safety seat 200 or child carrier 400 rotates and moves to a lateral position along with the first positioning assembly 1 in the positioning assembly 100a. The child safety seat or child carrier is then extended to the side, thereby bringing the child safety seat or child carrier closer to the vehicle door, making it easier to carry a child in or out, and improving the user experience and satisfaction of the child safety seat or child carrier. The child safety seat mentioned below may alternatively be a child carrier.

[0202] In some embodiments, the second positioning assembly 2 can also rotate relative to the third positioning assembly 3. The positioning assembly 100a is mounted on the car seat via the third positioning assembly 3. The child safety seat 200 is detachably mounted on the first positioning assembly 1. By rotating the child safety seat 200, the child safety seat 200 rotates along with the first positioning assembly 1 and the second positioning assembly 2 relative to the third positioning assembly 3, thereby allowing the child safety seat to rotate toward the car seat. In some embodiments, the third positioning assembly 3 may not be included in the positioning assembly 100a, and the positioning assembly 100a may be directly mounted on the car seat via the second positioning assembly 2. In some embodiments, the second positioning assembly 2 and the third positioning assembly 3 may be integrally formed, and the positioning assembly 100a may be mounted to the car seat via the integrally formed second positioning assembly 2 and third positioning assembly 3. In this application, as shown in Figures 2 and 4, when the second positioning assembly 2 is secured to the car seat, the forward direction of the car is defined as the front of the second positioning assembly 2, the rear direction of the car, which is opposite to the forward direction of the car, is defined as the rear of the second positioning assembly 2, the direction of the second positioning assembly 2 closer to the left door of the car is defined as the left direction, and the direction of the second positioning assembly 2 closer to the right door of the car is defined as the right direction. The front portion of the first positioning assembly 1 corresponds to the position of the child's feet when the child is seated. When the front portion of the first positioning assembly 1 is located in front of the second positioning assembly 2, the positioning assembly 100a is in forward-facing riding mode, i.e., the child safety seat or child carrier is in forward-facing riding mode. As shown in Figures 2 and 13, when the front portion of the first positioning assembly 1 is located behind the second positioning assembly 2, the positioning assembly 100a is in rearward-facing riding mode, i.e., the child safety seat or child carrier is in rearward-facing riding mode. In the present application, the positioning assembly is in a state of extending from one side, which means that the front of the first positioning assembly in the positioning assembly is facing this side, and the center of the first positioning assembly is displaced toward the side relative to the center of the second positioning assembly, so that the front of the first positioning assembly is closer to the car door on that side. In the present application, the positioning assembly is in a state of withdrawing from one side, which means that the rear of the first positioning assembly in the positioning assembly is facing the side, the front of the first positioning assembly is facing the other side opposite to the one side, and the center of the first positioning assembly 1 is displaced toward the side relative to the center of the second positioning assembly, so that the front of the first positioning assembly is away from the car door on the other side. In the present application, the front, rear, left, and right portions of the first positioning assembly 1 respectively refer to the portions of the first positioning assembly 1 corresponding to the front, rear, left, and right directions of the child when the child is seated. That is, when the positioning assembly 100a is in the forward-facing riding mode, the first positioning assembly 1 corresponds to the front, rear, left, and right directions of the second positioning assembly 2, the car seat, or the car.In all figures of this application, the arrows marked with "front," "rear," "left," "right," "up," and "down" refer to the spatial directions of the second positioning assembly, the vehicle seat, or the vehicle, respectively. Arrows marked with "F1," "F2," "F3," and "F4" refer to the corresponding directions of the front, rear, right, and left portions of the first positioning assembly 1, respectively.

[0203] The first aspect of the present application provides a positioning assembly 100a. In an embodiment of the first aspect of the present application, to allow the first positioning assembly 1 to slide laterally relative to the second positioning assembly 2, a first sliding member 121a and a second sliding member 121b are provided on the first positioning assembly 1, and a first track and a second track are provided on the second positioning assembly 2. The first track is an arc-shaped track arranged along the front-to-back direction of the second positioning assembly 2; the second track is a linear track arranged along the left-to-right direction of the second positioning assembly 2.

[0204] In one embodiment of the first aspect, referring to FIG2 , the first positioning assembly 1 is provided with a first slider 121a and a second slider 121b. Optionally, the second slider 121b is provided at the center point O' of the first positioning assembly 1, and the first slider 121a is provided at the rear of the first positioning assembly 1. Optionally, the center point O' of the first positioning assembly 1 may be the geometric center of the first positioning assembly 1. Correspondingly, referring to FIG3 , the second positioning assembly 2 includes at least a first track 21E1 and a second track 22E1. Furthermore, the first positioning assembly 1 includes an upper body 11 and a lower body 12. The upper body 11 is fixedly mounted on the upper surface of the lower body 12, and the first slider 121a and the second slider 121b are mounted on the lower surface of the lower body 12. The first slider 121a is slidably mounted on the first track 21E1, allowing the first slider 121a to slide along the first track 21E1. The second slider 121b is slidably mounted on the second track 22E1, allowing the second slider 121b to slide along the second track 22E1. In one embodiment, the first slider 121a and the second slider 121b are struts. In one embodiment, the first track 21E1 and the second track 22E1 are both slots, but the present disclosure is not limited thereto. This embodiment does not limit the shape and structure of the first slider 121a and the second slider 121b. It suffices to ensure that, after the first positioning assembly 1 is mounted on the second positioning assembly 2, the first slider 121a can slide along the first track 21E1 and the second slider 121b can slide along the second track 22E1, thereby achieving simultaneous rotation and movement of the first positioning assembly 1 relative to the second positioning assembly 2.

[0205] In some embodiments of the first aspect, as shown in Figures 3a-3b and 7a-7b, the first track (21E1, 21E1', 21E2, or 21E2') of the second positioning assembly 2 is an arcuate track disposed between a point A4 located forward on the front-back centerline Y of the second positioning assembly 2 and the left-right centerline X of the second positioning assembly 2, or disposed between a point A1 located rearward on the front-back centerline Y of the second positioning assembly 2 and the left-right centerline X of the second positioning assembly 2, where the left-right centerline X refers to the centerline extending in the left-right direction, and the front-back centerline Y refers to the centerline Y extending in the front-back direction. The first track is located on one of the left and right sides of the second positioning assembly 2. With respect to the front-back centerline Y of the second positioning assembly 2, the left portion of the second positioning assembly 2 is the left side, and the right portion is the right side. The second track (22E1, 22E1', 22E2, or 22E2') is a linear track that extends from the center point O (i.e., point B1) of the second positioning assembly 2 along the left-right centerline X toward the other of the left and right sides. Point B1 is a point on the second track, i.e., a point described based on the second track, and coincides with the center point O of the second positioning assembly 2. In one embodiment, the distance from the intersection point A1 or A4 of the first track with the front-to-back centerline Y to the center point O (i.e., point B1) of the second positioning assembly 2 is greater than the distance from the intersection point A2 or A3 of the first track with the left-to-right centerline X to the center point O (i.e., point B1) of the second positioning assembly 2. The intersection point A1 or A4 of the first track with the front-to-back centerline is a point located forward of the front-to-back centerline Y of the second positioning assembly 2, or a point located rearward of the front-to-back centerline Y. Correspondingly, in one embodiment of the present application, when the positioning assembly 100a is in the forward or rearward riding mode, the first slider 121a is disposed at a first position on the lower surface of the first positioning assembly 1, corresponding to the intersection (A1 or A4) of the first track (21E1, 21E1', 21E2, or 21E2') and the front-to-back centerline Y. The second slider 121b is disposed at a second position on the lower surface of the first positioning assembly 1, corresponding to the center point O of the second positioning assembly. Specifically, when the positioning assembly 100a is in the forward or rearward riding mode, the first slider 121a is disposed on the lower surface of the lower seat body 12, corresponding to the intersection A4 or A1 of the first track and the front-to-back centerline Y. The second slider 121b is disposed on the lower surface of the lower seat body 12, corresponding to the center point O (i.e., point B1) of the second positioning assembly 2. Optionally, the center point O of the second positioning assembly 2 may be the geometric center of the second positioning assembly 2.

[0206] In one embodiment, as shown in FIG3a , the first track 21E1 is a curved track disposed between a point A1 located rearward on the front-to-rear centerline Y of the second positioning assembly 2 and the left-to-right centerline X of the second positioning assembly 2, and located on the right side of the second positioning assembly 2. Specifically, the first track 21E1 is the portion of the curved track shown in FIG3a located on the right side of the second positioning assembly 2. The second track 22E1 is a linear track extending from the center point O (i.e., point B1) of the second positioning assembly 2 toward the left side along the left-to-right centerline X. Specifically, the second track 22E1 is the portion of the linear track shown in FIG3a located on the left side of the second positioning assembly 2. Accordingly, when the positioning assembly 100a is in the forward-facing or rearward-facing riding mode, the first slider 121a is disposed at a first position on the lower surface of the lower seat 12. This first position on the lower surface corresponds to the first track 21E1, specifically, point A1 on the first track 21E. The second sliding member 121b is disposed on the lower surface of the lower seat body 12, corresponding to the center point O of the second positioning assembly 2. This application describes this embodiment using the positioning assembly shown in Figure 4 in the forward-facing riding mode as an example. Referring to Figures 3a and 4, when the positioning assembly 100a is in the forward-facing riding mode, the first sliding member 121a of the first positioning assembly 1 is located at the first position corresponding to point A1 on the first positioning assembly 1, and the second sliding member 121b is located at the second position corresponding to point B1 on the first positioning assembly 1. Rotating the child safety seat causes the first positioning assembly 1 of the positioning assembly to begin rotating. Starting from point A1, the first sliding member 121a of the first positioning assembly 1 slides along the first track 21E1 in the direction indicated by the arrow. Simultaneously, the second sliding member 121b is driven to slide along the second track 22E1 from point B1 in the direction indicated by the arrow, i.e., toward the left. During this process, the first positioning assembly 1 gradually extends to the left while rotating. As shown in Figures 5 and 6, when the first slider 121a slides to point A2 on the first track 21E1 and the second slider 121b slides to point B2 on the second track 22E1, the first positioning assembly 1 extends to the left, causing the child safety seat to be in a leftward extended position. In one embodiment of the present application, when the positioning assembly 100a is in rear-facing riding mode, with the first slider 121a on the first positioning assembly 1 located at a first position corresponding to point A1 on the first positioning assembly 1 and the second slider 121b located at a second position corresponding to point B1 on the first positioning assembly 1, the operating process of the positioning assembly 100a in this embodiment is substantially the same as that described above and will not be further described here. The difference from the above process is that the first positioning assembly 1 simultaneously rotates and withdraws to the left.

[0207] In another embodiment, as shown in FIG3b , the first track 21E1' may also be disposed between a point A4 located forward of the front-to-back centerline Y of the second positioning assembly 2 and the left-to-right centerline X of the second positioning assembly 2, and located on the right side of the second positioning assembly 2. Specifically, the first track 21E1' is the portion of the curved track shown in FIG3b located on the right side of the second positioning assembly 2. The second track 22E1' is a linear track extending from the center point O (i.e., point B1) of the second positioning assembly 2 along the left-to-right centerline X to the left side. Specifically, the second track 22E1' is the portion of the linear track shown in FIG3b located on the left side of the second positioning assembly 2. Correspondingly, when the positioning assembly 100a is in the forward-facing or rear-facing riding mode, the first slider 121a is positioned at a first position on the lower surface of the lower seat body 12. This first position on the lower surface corresponds to the first track 21E1'. Specifically, the first position corresponds to point A4 on the first track 21E1'. The second slider 121b is positioned at a second position on the lower surface of the lower seat body 12, corresponding to the center point O (i.e., point B1) of the second positioning assembly 2. In one embodiment of the present application, when the positioning assembly 100a is in the rear-facing riding mode, the first slider 121a is positioned at a first position on the lower surface of the lower seat body 12, corresponding to point A4 on the first track 21E1'. The second slider 121b is positioned at a second position on the lower surface of the lower seat body 12, corresponding to the center point O (i.e., point B1) of the second positioning assembly 2. Similarly, the first positioning assembly 1 can be simultaneously rotated and extended to the left, placing the child safety seat in a leftward extended position. The specific process is similar to the above process and will not be repeated. In one embodiment, when the positioning assembly 100a is in the forward riding mode, the first sliding member 121a is set at a first position on the lower surface of the lower seat body 12 corresponding to point A4 of the first track 21E1', and the second sliding member 121b is set at a second position on the lower surface of the lower seat body 12 corresponding to the center point O (i.e., point B1) of the second positioning assembly 2. The working process of the positioning assembly 100a of this embodiment is basically the same as the above process and will not be repeated here. The difference from the above process is that the first positioning assembly 1 exits to the left while rotating.

[0208] In another embodiment of the first aspect, as shown in FIG7a , the first track 21E2 is a curved track disposed between a point A1 located rearward on the front-to-rear centerline Y of the second positioning assembly 2 and the left-to-right centerline X of the second positioning assembly 2, and located on the left side of the second positioning assembly 2. Specifically, the first track 21E2 is the portion of the curved track shown in FIG7a located on the left side of the second positioning assembly 2. The second track 22E2 is a linear track extending from the center point O (i.e., point B1) of the second positioning assembly 2 toward the right side along the left-to-right centerline X. Specifically, the second track 22E2 is the portion of the linear track shown in FIG7a located on the right side of the second positioning assembly 2. Correspondingly, when the positioning assembly 100a is in the forward-facing or rearward-facing riding mode, the first slider 121a is disposed at a first position on the lower surface of the lower seat 12. This first position on the lower surface corresponds to the first track 21E2. Specifically, the first position corresponds to point A1 of the first track 21E2. The second slider 121b is positioned at a second position on the lower surface of the lower seat 12, corresponding to the center point O (i.e., point B1) of the second positioning assembly 2. This embodiment will be described using the positioning assembly shown in Figure 4 in the forward-facing riding mode as an example. Referring to Figures 4 and 7a, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 121a on the first positioning assembly 1 is positioned at a first position on the lower surface of the lower seat 12, corresponding to point A1 in the figures, and the second slider 121b is positioned at a second position on the lower surface of the lower seat 12, corresponding to point B1 in the figures. Rotating the child safety seat causes the first positioning assembly 1 to begin rotating. Starting from point A1, the first slider 121a on the first positioning assembly 1 slides along the first track 21E2 in the direction indicated by the arrow. Simultaneously, the second slider 121b, starting from point B1, slides along the second track 22E2 in the direction indicated by the arrow, i.e., toward the right. During this process, the first positioning assembly 1 gradually extends to the right as it rotates. As shown in Figures 8 and 9, when the first slider 121a slides to point A3 on the first track 21E2, the second slider 121b slides to point B3 on the second track 22E2, and the first positioning assembly 1 extends to the right, placing the child safety seat in a rightwardly extended position. In one embodiment of the present application, when the positioning assembly 100a is in rear-facing seating mode, the first slider 121a of the first positioning assembly 1 is located at a first position corresponding to point A1 on the lower surface of the lower seat body 12, and the second slider 121b is located at a second position corresponding to point B1 on the lower surface of the lower seat body 12. The operating process of the positioning assembly 100a in this embodiment is substantially the same as the above process and will not be further described here. The difference is that the first positioning assembly 1 withdraws to the right while rotating.

[0209] In yet another embodiment of the first aspect, as shown in FIG7b , the first track 21E2' can be disposed between a point A4 located forward of the front-to-rear centerline Y of the second positioning assembly 2 and the left-to-right centerline X of the second positioning assembly 2, and located on the left side of the second positioning assembly 2. Specifically, the first track 21E2' is the portion of the curved track illustrated in FIG7b located on the left side of the second positioning assembly 2. The second track 22E2' is a linear track extending from the center point O (i.e., point B1) of the second positioning assembly 2 along the left-to-right centerline X to the right side. Specifically, the second track 22E2' is the portion of the linear track illustrated in FIG7b located on the right side. Correspondingly, when the positioning assembly 100a is in the forward-facing or rear-facing riding mode, the first slider 121a is positioned at a first position on the lower surface of the lower seat body 12. This first position on the lower surface corresponds to the first track 21E2'. Specifically, this first position corresponds to a point A4 located forward of the front-rear centerline Y of the second positioning assembly 2. The second slider 121b is positioned at a second position on the lower surface of the lower seat body 12, corresponding to the center point O (i.e., point B1) of the second positioning assembly 2. In this embodiment, when the positioning assembly 100a is in the rear-facing riding mode, the first slider 121a is positioned at a first position corresponding to point A4 on the lower surface of the lower seat body 12, and the second slider 121b is positioned at a second position on the lower surface of the lower seat body 12, corresponding to the center point O (i.e., point B1) of the second positioning assembly 2. In this embodiment of the present application, the first positioning assembly 1 can also be rotated and extended to the right, placing the child safety seat in a rightwardly extended position. The specific process is similar to the above process and will not be repeated. In one embodiment, when the positioning assembly 100a is in the forward riding mode, the first sliding member 121a is set at a first position on the lower surface of the lower seat body 12 corresponding to point A4 of the first track 21E2', and the second sliding member 121b is set at a second position on the lower surface of the lower seat body 12 corresponding to the center point O (i.e., point B1) of the second positioning assembly 2. The working process of the positioning assembly 100a of this embodiment is basically the same as the above process and will not be repeated here. The difference from the above process is that the first positioning assembly 1 exits to the right while rotating.

[0210] The second aspect of this application provides a positioning assembly 100a. To allow the first positioning assembly 1 to slide laterally relative to the second positioning assembly 2, a first slide 121a and a second slide 121b are provided on the first positioning assembly 1, and a first track and a second track are provided on the second positioning assembly 2. The first track is a curved track extending along the front-to-back direction of the second positioning assembly 2; the second track is a linear track extending along the left-to-right direction of the second positioning assembly 2. The following describes an embodiment of the second aspect in detail.

[0211] In some embodiments of the second aspect, as shown in FIG10 , the first track (21E3 or 21E4) is a curved track disposed between a point A4 located forward and a point A1 located rearward on the front-rear centerline Y of the second positioning assembly 2, and located on one of the left and right sides of the second positioning assembly 2. The second track (22E3 or 22E4) is a linear track extending from the center point O (i.e., point B1) of the second positioning assembly 2 along the left-right centerline X to the other of the left and right sides. In one embodiment, the distance between the intersection points A1 and A4 of the first track with the front-rear centerline Y is greater than twice the distance from the intersection point of the first track with the left-right centerline X to the center point O (i.e., point B1) of the second positioning assembly 2. Correspondingly, in one embodiment, when the positioning assembly 100a is in the forward-facing or rear-facing riding mode, the first sliding member 121a is disposed on the lower surface of the lower seat body 12 at a first position corresponding to any point between point A1 and point A4 of the first track 21E3 or 21E4. The second sliding member 121b is disposed on the lower surface of the lower seat body 12 at a second position corresponding to the center point O (i.e., point B1) of the second positioning assembly 2. By rotating the child safety seat, the child safety seat rotates and moves to a lateral position along with the first positioning assembly 1 in the positioning assembly 100a. Furthermore, the positioning assembly can be switched between forward-facing and rear-facing riding modes. The child safety seat can be rotated to a sideways extended position, placing it closer to the vehicle door, making it easier to carry a child in or out. The child safety seat can also be freely switched between forward-facing and rear-facing riding modes, enhancing the safety of the child safety seat and improving the user experience and satisfaction. Furthermore, embodiments of the present application also allow the child safety seat to be rotated to a sideways withdrawn position. The specific description is as follows.

[0212] In one embodiment of the second aspect, as shown in FIG11 , the first track 21E3 is disposed between a point A4 located forward and a point A1 located rearward on the front-rear centerline Y of the second positioning assembly 2, located on the right side of the second positioning assembly 2. That is, the first track 21E3 is the curved track located on the right side of the second positioning assembly 2 in FIG11 . The second track 22E3 is a linear track extending from the center point O (i.e., point B1) of the second positioning assembly 2 toward the left side along the left-right centerline X. That is, the second track 22E3 is the portion of the linear track shown in FIG11 located on the left side of the second positioning assembly 2. Correspondingly, when the positioning assembly 100a is in the forward-facing or rear-facing riding mode, the first slider 121a is disposed on the lower surface of the lower seat body 12 at a first position corresponding to either point A4 or point A1 of the first track 21E3. Specifically, the first slider 121a is disposed in the first position on the lower seat body 12 so that it aligns with either point A1 or point A4 of the first track 21E3 when the first positioning assembly 1 is in the forward-facing or rear-facing riding mode. The second slider 121b is disposed on the lower surface of the lower seat body 12 at a second position corresponding to the center point O (i.e., point B1) of the second positioning assembly 2. With this arrangement, the child safety seat can be rotated to the left, simultaneously with the rotation of the first positioning assembly 1 in the positioning assembly 100a. The child safety seat can be positioned in either a leftward extended or leftward retracted position. Furthermore, the positioning assembly can be switched between forward-facing and rearward-facing riding modes.

[0213] This application describes this embodiment using the example of the positioning assembly 100a shown in Figure 4 in the forward-facing riding mode, with the first slider 121a of the first positioning assembly 1 located at point A1 in Figure 11. As shown in Figures 4 and 11, the first track 21E3 is located on the right side of the second positioning assembly 2, and the second track 22E3 is a linear track extending from the center point O (i.e., point B1) of the second positioning assembly 2 toward the left side along the left-right centerline X. When the positioning assembly 100a is in the forward-facing riding mode, with the first slider 121a of the first positioning assembly 1 located at point A1 and the second slider 121b located at point B1 in Figure 11, the first slider 121a of the first positioning assembly 1 slides from point A1 along the first track 21E3 in the direction indicated by the arrow. Simultaneously, the second slider 121b slides from point B1 along the second track 22E3 in the direction indicated by the arrow, i.e., toward the left. During this process, the first positioning assembly 1 rotates and gradually extends to the left. As shown in Figure 12, when the first slider 121a slides to point A2 on the first track 21E3, the second slider 121b slides to point B2 on the second track 22E3, and the first positioning assembly 1 extends to the left, placing the child safety seat in the leftward extended position (as shown in Figure 6). Continuing with Figure 12, the first positioning assembly 1 is rotated further, causing the first slider 121a to slide along the first track 21E3 in the direction indicated by the arrow at point A2, i.e., from point A2 to point A4. Simultaneously, the second slider 121b slides along the second track 22E3 in the direction indicated by the arrow at point B2, i.e., from point B2 toward the center point O (i.e., point B1). During this process, the first positioning assembly 1 gradually retracts toward the center point O (i.e., point B1) while rotating. As shown in Figures 13-14, when the first slider 121a slides to point A4 on the first track 21E3, the second slider 121b slides to point B1 on the second track 22E3, and the first positioning assembly 1 retracts to the center point O. At this point, the positioning assembly 100a is in the rearward-facing riding mode. The positioning assembly 100a of this embodiment of the present application enables the first positioning assembly 1 to be pulled out to the left, while also enabling the transition from the forward-facing riding mode to the rearward-facing riding mode. When the first positioning assembly 1 is in the rearward-facing riding mode as shown in Figure 13, the positioning assembly 100a of this embodiment of the present application can be rotated in the opposite direction of the sliding process described above. This allows the first positioning assembly 1 to be pulled out to the left, while also enabling the transition from the rearward-facing riding mode to the forward-facing riding mode. Thus, this embodiment of the present application enables the first positioning assembly 1 to be pulled out to the left and the positioning assembly to be switched between forward and rearward riding modes.In one embodiment of the present application, when positioning assembly 100a is in rear-facing riding mode, first slider 121a on first positioning assembly 1 is located at a position corresponding to point A1 on first positioning assembly 1, and second slider 121b is located at a position corresponding to point B1 on first positioning assembly 1. The operating process of positioning assembly 100a in this embodiment is essentially the same as the above process and will not be described in detail here. The difference from the above process is that, first, first positioning assembly 1 rotates in the direction indicated by the arrow at point A1 while simultaneously withdrawing to the left. Then, further rotation of the child safety seat allows positioning assembly 100a to return to the center point, at which point positioning assembly 100a is in forward riding mode. Then, by rotating first positioning assembly 1 in the opposite direction of the above sliding process, first positioning assembly 1 can be withdrawn to the left, thereby further converting positioning assembly 100a from forward riding mode to its original rear-facing riding mode.

[0214] In another embodiment of the second aspect, as shown in FIG15 , the first track 21E4 is disposed between a point A4 located forward and a point A1 located rearward on the front-rear centerline Y of the second positioning assembly 2, and is located on the left side of the second positioning assembly 2. Specifically, the first track 21E4 is the curved track located on the left side of the second positioning assembly 2 in FIG15 . The second track 22E4 is a linear track extending from the center point O (i.e., point B1) of the second positioning assembly 2 toward the right side along the left-right centerline X. Specifically, the second track 22E4 is the portion of the linear track illustrated in FIG15 located on the right side of the second positioning assembly 2. Accordingly, when the positioning assembly 100a is in the forward-facing or rearward-facing riding mode, the first slider 121a is disposed on the lower surface of the lower seat 12 at a first position corresponding to point A4 or point A1 of the first track 21E4. The first track 21E4 has points A4 and A1. The first slider 121a is positioned in a first position on the lower seat 12. When the first positioning assembly 1 is in either the forward or rearward riding mode, it can be aligned with either point A4 or A1 of the first track 21E4. The second slider 121b is positioned on the lower surface of the lower seat 12, corresponding to a second position relative to the center point O (i.e., point B1) of the second positioning assembly 2. With this arrangement, the child safety seat can be rotated to the right as the first positioning assembly 1 in the positioning assembly 100a rotates, allowing the child safety seat to be positioned in either a rightwardly extended or rightwardly retracted position. Furthermore, this embodiment of the present application also enables the positioning assembly to switch between forward and rearward riding modes.

[0215] This application describes this embodiment using the positioning assembly 100a shown in Figure 4 in forward-facing riding mode, with the first slider 121a on the first positioning assembly 1 located at point A1 in Figure 15 as an example. As shown in Figures 4 and 15 , the first track 21E4 is located on the left side of the second positioning assembly 2, and the second track 22E4 is a linear track extending from the center point O (i.e., point B1) of the second positioning assembly 2 toward the right side along the left-right centerline X. The first slider 121a on the first positioning assembly 1 is located at point A1 in Figure 15 , and the second slider 121b is located at point B1 in Figure 15 . Starting from point A1, the first slider 121a on the first positioning assembly 1 slides along the first track 21E4 in the direction indicated by the arrow. Simultaneously, the second slider 121b starts from point B1 and slides along the second track 22E4 in the direction indicated by the arrow, i.e., toward the right. During this process, the first positioning assembly 1 rotates and gradually extends to the right. As shown in Figure 16, when the first slider 121a slides to point A3 on the first track 21E4, the second slider 121b slides to point B3 on the second track 22E4, and the first positioning assembly 1 extends to the right, placing the child safety seat in the rightward extended position. Referring to Figure 16, the first positioning assembly 1 continues to rotate, causing the first slider 121a to slide along the first track 21E4 in the direction indicated by the arrow at point A3, i.e., from point A3 to point A4. Simultaneously, the second slider 121b slides along the second track 22E4 in the direction indicated by the arrow at point B3, i.e., from point B3 toward the center point O (i.e., point B1). During this process, the first positioning assembly 1 gradually retracts toward the center point O (i.e., point B1) as it rotates. As shown in Figures 13 and 17, when the first slider 121a slides to point A4 on the first track 21E4, the second slider 121b slides to point B1 on the second track 22E4, and the first positioning assembly 1 retracts to the center position. Here, the positioning assembly 100a is in the rear-facing riding mode. With the positioning assembly 100a of this embodiment of the present application, by rotating the first positioning assembly 1, the first positioning assembly 1 can be pulled out to the right. Further rotation of the first positioning assembly 1 can also switch the first positioning assembly 1 from the forward riding mode to the rear-facing riding mode. Furthermore, when the first positioning assembly 1 is in the rear-facing riding mode as shown in Figure 13, the positioning assembly 100a of this embodiment of the present application can be pulled out to the right by rotating the first positioning assembly 1 in the opposite direction of the sliding process described above. Furthermore, this embodiment of the present application can achieve the right-facing pulling of the first positioning assembly 1 and the switching between the forward and rear-facing riding modes.In one embodiment of the present application, when positioning assembly 100a is in rear-facing riding mode, first slider 121a on first positioning assembly 1 is located at a position corresponding to point A1 on first positioning assembly 1, and second slider 121b is located at a position corresponding to point B1 on first positioning assembly 1. The operating process of positioning assembly 100a in this embodiment is essentially the same as the above process and will not be described in detail here. The difference from the above process is that, first, first positioning assembly 1 rotates in the direction indicated by the arrow at A1 while simultaneously withdrawing to the right. Then, further rotation of the child safety seat allows positioning assembly 100a to return to the center point, at which point positioning assembly 100a is in forward riding mode. Then, by rotating first positioning assembly 1 in the opposite direction of the above sliding process, first positioning assembly 1 can be withdrawn to the right, thereby further converting positioning assembly 100a from forward riding mode to its original rear-facing riding mode.

[0216] The third aspect of this application provides a positioning assembly 100a. In an embodiment of the third aspect, to allow the first positioning assembly 1 to slide laterally relative to the second positioning assembly 2, a first sliding member 121a and a second sliding member 121b are provided on the first positioning assembly 1, and a first track and a second track are provided on the second positioning assembly 2. Unlike the first aspect, the first track is a circular track extending along the front-to-back direction of the second positioning assembly 2, while the second track is a linear track extending along the left-to-right direction of the second positioning assembly 2.

[0217] In some embodiments of the third aspect, as shown in FIG18a or FIG18b , the first track 21E5 is a circular track that surrounds the center point O of the second positioning assembly 2. In one embodiment, the circular track is arranged along the front-to-back direction of the second positioning assembly 2, i.e., the distance between the front and rear ends of the circular track (located at points A4 and A1 in FIG18a or FIG18b , respectively) is greater than the distance between the left and right ends of the circular track (located at points A3 and A2 in FIG18a or FIG18b , respectively). The front end (point A4) of the first track 21E5 is located at any position forward of the centerline Y of the second positioning assembly 2 in the front-to-back direction. The rear end (point A1) of the first track 21E5 can be located at any position rearward of the centerline Y of the second positioning assembly 2 in the front-to-back direction. A circular track is a type of curved track. The difference between a circular track and a curved track is that a circular track is composed of multiple curved segments. This arrangement enables the child safety seat to cycle through lateral push-out and forward-to-backward seating modes.

[0218] In one embodiment, as shown in FIG18a , the second track 22E5 is a linear track extending along the left-right direction of the second positioning assembly 2. Specifically, the second track 22E5 extends to the outside of the circular track on the left and right sides, respectively, parallel to the left-right centerline X of the second positioning assembly 2. This arrangement ensures that the center point B1 of the second track 22E5 does not coincide with the center point O of the second positioning assembly 2, i.e., the second track 22E5 is offset from the left-right centerline X of the second positioning assembly 2. In one embodiment, corresponding to the positioning assembly 100a being in the forward or rearward riding mode, the first slider 121a is disposed on the bottom surface of the first positioning assembly 1, located at the frontmost or rearmost end of the first track 21E5 (at a position corresponding to point A4 or point A1 in FIG18a , respectively). The second slider 121b is disposed on the bottom surface of the first positioning assembly 1, corresponding to the center point B1 of the second track 22E5.

[0219] In another embodiment, as shown in Figure 18b, the second track 22E5 is a straight track, extending from the center point O of the second positioning component 2 along the center line X in the left and right directions to the left and right sides respectively to the outside of the circular track. In this way, the center point B1 of the second track 22E5 coincides with the center point O of the second positioning component 2. Furthermore, corresponding to the positioning assembly 100a being in the forward riding mode or the rearward riding mode, the first sliding member 121a is provided on the lower surface of the first positioning assembly 1, at a position corresponding to the front end or the rear end of the first track 21E5 (located at point A4 or point A1 in FIG18a, respectively), and the second sliding member 121b is provided on the lower surface of the first positioning assembly 1 at a position corresponding to the center point B1 of the second track 22E5, that is, the center point O of the second positioning assembly 2. In another embodiment, as shown in FIG18b, preferably, the first track 21E6 is an elliptical track centered on the center point O of the second positioning assembly 2, the line connecting the front end and the rear end (located at points A4 and A1 in FIG18b, respectively) of the elliptical track is the major axis of the elliptical track, and the line connecting the leftmost end B2 and the rightmost end B3 of the elliptical track is the minor axis of the elliptical track. The second track 22E6 is a straight track, which is located at the center of the elliptical track. The second positioning assembly 2 of the present invention is provided with an elliptical track centered around the center point O (i.e., point B1). This track forms a straight line along the left-right centerline, i.e., the minor axis of the elliptical track. The line connecting the front end (point A4) and the rear end (point A1) of the elliptical track is the major axis of the elliptical track. The second track 22E6 is a linear track located along the minor axis of the elliptical track. This ensures that when the child safety seat is rotated, the first positioning assembly 1 in the positioning assembly 100a can be driven to rotate and move to a position extending to either the left or right side. Furthermore, embodiments of the third aspect of the present invention can also switch the positioning assembly 100a between a forward-facing riding mode and a rearward-facing riding mode, as described below.

[0220] In one embodiment of the present application, referring to Figures 4 and 18b, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 121a of the first positioning assembly 1 is located at point A1 in the figure, and the second slider 121b is located at point B1, the center point of the second track 22E6. This embodiment will be described using the positioning assembly 100a shown in Figure 4 as an example, initially in the forward-facing riding mode. Rotating the child safety seat causes the first positioning assembly 1 to begin rotating, causing the first slider 121a of the first positioning assembly 1 to slide from point A1 along the first track 21E6 in the direction indicated by the arrow at point A1. Simultaneously, the second slider 121b is driven to slide from point B1 along the second track 22E6 toward the left side of the second positioning assembly 2. During this process, the first positioning assembly 1 gradually extends to the left as it rotates. When the first slider 121a slides to point A2 on the first track 21E6, the second slider 121b slides to point B2 on the second track 22E6. The first positioning assembly 1 extends to the left (see Figure 6), placing the child safety seat in a leftward extended position. This position brings the child safety seat closer to the left door of the vehicle, making it easier to carry the child in or out from the left. The child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to slide from point A2 along the first track 21E6 in the direction indicated by the arrow at point A2, i.e., from point A2 to point A4. Simultaneously, the second slider 121b is driven to slide from point B2 toward the center point B1 of the second track 22E6. During this process, the first positioning assembly 1 gradually retracts toward the center point B1 of the second track 22E6 while rotating. As shown in Figure 18b, when the first slider 121a slides to point A4 on the first track 21E6, the second slider 121b slides to point B1 on the second track 22E6, and the first positioning assembly 1 retracts to the center point B1. At this point, the positioning assembly 100a is in rearward-facing riding mode (as shown in Figure 13). The child safety seat switches from forward-facing to rearward-facing riding mode, improving safety and enhancing the user experience and satisfaction. The positioning assembly 100a of this embodiment of the present application enables the first positioning assembly 1 to be pulled out to the left, while also enabling the transition from forward-facing to rearward-facing riding mode. At this point, the child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point A4 along the first track 21E6 in the direction indicated by the arrow at point A4, i.e., from point A4 to point A3. Simultaneously, the second slider 121b is driven to slide from point B1 along the second track 22E6 toward the right, i.e., from point B1 to point B3. During this process, the first positioning component 1 rotates and gradually extends to the right.When the first slider 121a slides to point A3 on the first track 21E6, the second slider 121b slides to point B3 on the second track 22E6, and the first positioning assembly 1 extends to the right (see Figure 9), placing the child safety seat in the rightward extended position. This places the child safety seat closer to the right door of the vehicle, making it easier to carry the child in or out from the right side. The child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to slide from point A3 along the first track 21E6 in the direction indicated by the arrow at point A3, that is, from point A3 to point A1. Simultaneously, the second slider 121b is driven to slide from point B3 toward the center point B1 of the second track 22E6. During this process, the first positioning assembly 1 gradually retracts toward the center point B1 of the second track 22E6 while rotating. As shown in Figure 18b, when the first slider 121a slides to point A1 in the first track 21E6, the second slider 121b slides to the center point B1 of the second track 22E6, and the first positioning assembly 1 retracts to the center point B1. At this time, the positioning assembly 100a is in the forward riding mode (as shown in Figure 4). The positioning assembly 100a of the embodiment of the present application can be pulled out to the right, and it can also be switched from the rearward riding mode to the forward riding mode, that is, returning to the initial forward riding mode. The child safety seat can be freely switched between the forward riding mode and the rearward riding mode, improving the safety of the child safety seat and enhancing the user experience and satisfaction of the child safety seat. Of course, in actual use of this embodiment of the present application, the first sliding member 121a can also slide in the reverse direction, that is, rotating from point A1 to point A3, pulling the first positioning assembly 1 out to the right; then rotating from point A3 to point A4, the first positioning assembly 1 retracts to center point B1, switching from forward-facing to rearward-facing riding mode; then rotating from point A4 to point A2, pulling the first positioning assembly 1 out to the left; then rotating from point A2 to point A1, the first positioning assembly 1 retracts to center point B1, switching from rearward-facing to forward-facing riding mode. From the above description of the use of this embodiment of the present application, it can be seen that in this embodiment of the present application, when the child safety seat is rotated, the child safety seat can rotate and move with the first positioning assembly 1 in the positioning assembly 100a to extend to the left or right, and can also switch the positioning assembly between forward-facing and rearward-facing riding modes. The child safety seat can be adjusted to extend to either the left or right side, placing it closer to either door, making it easier to carry a child in and out. The child safety seat can be freely switched between forward-facing and rear-facing modes, enhancing safety and improving user experience and satisfaction.

[0221] In one embodiment of the present application, referring to Figures 4 and 18b, when the positioning assembly 100a is in the rear-facing riding mode, the first slider 121a of the first positioning assembly 1 is located at point A1 in the figure, and the second slider 121b is located at point B1, the center point of the second track 22E6. That is, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 121a of the first positioning assembly 1 is located at point A4 in the figure, and the second slider 121b is located at point B1, the center point of the second track 22E6. The use process of this embodiment is described using the seat initially in the rear-facing riding mode as an example. Rotating the child safety seat causes the first positioning assembly 1 to begin rotating, causing the first slider 121a of the first positioning assembly 1 to slide from point A1 along the first track 21E6 in the direction indicated by the arrow at point A1. Simultaneously, the second slider 121b is driven to slide from point B1 along the second track 22E6 toward the left side of the second positioning assembly 2. During this process, the first positioning assembly 1 gradually moves to the left as it rotates. When the first slider 121a slides to point A2 on the first track 21E6, the second slider 121b slides to point B2 on the second track 22E6, and the first positioning assembly 1 withdraws from the left side, placing the child safety seat in a leftward withdrawal position. This embodiment of the present application allows the child safety seat to withdraw from the left side while rotating. This prevents the child safety seat from hitting the right door when installed on the right seat of a vehicle. It also leaves space on the right side for the child's feet, improving the user experience and satisfaction of the child safety seat. The child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point A2 along the first track 21E6 in the direction indicated by the arrow at point A2, i.e., from point A2 to point A4. Simultaneously, the second slider 121b is driven to slide from point B2 toward the center point B1 of the second track 22E6. During this process, the first positioning assembly 1 gradually withdraws toward the center point B1 of the second track 22E6 while rotating. As shown in Figure 18b, when the first slider 121a slides to point A4 on the first track 21E6, the second slider 121b slides to point B1 on the second track 22E6, and the first positioning assembly 1 retracts to the center point B1. At this point, the positioning assembly 100a is in the forward-facing riding mode (as shown in Figure 4). The positioning assembly 100a of the embodiment of the present application can also be used to switch from the rear-facing riding mode to the forward-facing riding mode. At this point, the child safety seat is further rotated, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point A4 along the first track 21E6 in the direction indicated by the arrow at point A4, i.e., from point A4 to point A3. Simultaneously, the second slider 121b is driven to slide from point B1 along the second track 22E6 toward the right side, i.e., from point B1 to point B3.During this process, the first positioning assembly 1 rotates and gradually withdraws to the right. When the first slider 121a slides to point A3 on the first track 21E6, the second slider 121b slides to point B3 on the second track 22E6. The first positioning assembly 1 withdraws to the right, causing the child safety seat to be withdrawn from the right side. This embodiment of the present application allows the child safety seat to withdraw from the right side while rotating. This prevents the child safety seat from hitting the left door when installed on the left side of the vehicle. It also leaves space on the left side for the child's feet, improving the user experience and satisfaction of the child safety seat. The child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point A3 along the first track 21E6 in the direction indicated by the arrow at point A3, i.e., from point A3 to point A1. Simultaneously, the second slider 121b is driven to slide from point B3 to the center point B1 of the second track 22E6. During this process, the first positioning assembly 1 rotates and gradually retracts toward the center point B1 of the second track 22E6. As shown in Figure 18b, when the first slider 121a slides to point A1 on the first track 21E6, the second slider 121b slides to the center point B1 of the second track 22E6, and the first positioning assembly 1 retracts to the center point B1. At this point, the positioning assembly 100a is in the rear-facing riding mode (as shown in Figure 13).

[0222] Further, as shown in Figure 18a, in one embodiment of the present application, corresponding to the state in which the first positioning component 1 is extended from the left side, the first sliding member 121a is arranged on the lower surface of the first positioning component 1, at a position corresponding to the rightmost end (point A2) of the first track 21E5, and the second sliding member 121b is arranged on the lower surface of the first positioning component 1, at a position corresponding to the leftmost end (point B2) of the second track 22E5; and / or corresponding to the state in which the first positioning component 1 is extended from the right side, the first sliding member 121a is arranged on the lower surface of the first positioning component 1, at a position corresponding to the leftmost end (point A3) of the first track 21E5, and the second sliding member 121b is arranged on the lower surface of the first positioning component 1, at a position corresponding to the rightmost end (point B3) of the second track 22E5. Further, as shown in Figure 18b, in one embodiment of the present application, corresponding to the state in which the first positioning component 1 is withdrawn from the left side, the first sliding member 121a is arranged on the lower surface of the first positioning component 1, at a position corresponding to the rightmost end (point A2) of the first track 21E6, and the second sliding member 121b is arranged on the lower surface of the first positioning component 1, at a position corresponding to the leftmost end (point B2) of the second track 22E6; and / or corresponding to the state in which the first positioning component 1 is withdrawn from the right side, the first sliding member 121a is arranged on the lower surface of the first positioning component 1, at a position corresponding to the leftmost end (point A3) of the first track 21E6, and the second sliding member 121b is arranged on the lower surface of the first positioning component 1, at a position corresponding to the rightmost end (point B3) of the second track 22E6.

[0223] In some embodiments of the present application, in order to ensure the safety of the child safety seat being fixed relative to the base when in use, it is understood that the lengths of the first track and the second track can be adjusted, for example, the distance between the leftmost end and the rightmost end of the first track can be proportionally increased, or the length of the second track can be proportionally reduced, so that the first positioning component can extend to a smaller distance to one side relative to the second positioning component, thereby ensuring the stability of the fixation of the first positioning component.

[0224] In some embodiments of the present application, in order to enable the first positioning assembly 1 to rotate relative to the second positioning assembly 2 while extending from one side, the length of the second track is greater than or equal to the difference between the lengths of the major axis and the minor axis. Specifically, the length of the second track is greater than or equal to the difference between the lengths of the major axis and the minor axis, and is less than the left-right dimension of the second positioning assembly. For example, if the second positioning assembly 2 is circular, the length of the second track is less than the diameter of the second positioning assembly 2. In one embodiment, the length of the second track is equal to the difference between the lengths of the major axis and the minor axis. With this arrangement, when the first positioning assembly 1 is rotated relative to the second positioning assembly 2 until the child safety seat is facing the car door, the child safety seat can be extended from one side toward the car door by rotating and sliding simultaneously. In other embodiments not shown, the length of the second track is greater than the difference between the lengths of the major axis and the minor axis. With this arrangement, when the first positioning assembly 1 is rotated relative to the second positioning assembly 2 so that the child safety seat is facing the car door, since the first sliding member 121a and the second sliding member 121b are both located on the second track, i.e., the linear track, if the child safety seat does not extend sufficiently toward the car door, the child safety seat can be pulled toward the car door to increase the length of the child safety seat extending toward the car door, making it easier to lift the baby out.

[0225] In one embodiment of the present application, referring to FIG19, in order to make the first sliding member 121a in the first track (21E1, 21E2 in FIG3a, 21E1', 21E2' in FIG3b, 21E3, 21E4 in FIG10, 21E5 in FIG18a, 21E6 in FIG18b, 21E8 in FIG21, or 21E7 in FIG30), and the second sliding member 121b in the second track (22E1, 22E2 in FIG3a, 22E1', 22E2' in FIG3b), 10, 22E5 in Figure 18a, 22E6 in Figure 18b, 22E8 in Figure 21, or 22E7 in Figure 30), thereby improving the sliding flexibility, reducing friction resistance, and increasing wear resistance. The first sliding member 121a of the present application is provided with a first bearing 122a, and the first bearing 122a is matched with the first track (21E1, 21E2 in Figure 3a, 21E1', 21E2' in Figure 3b, 21E3, 21E4 in Figure 10, 21E5 in Figure 18a, 21E6 in Figure 18b, 21E8 in Figure 21, or 21E7 in Figure 30). Second sliding member 121b is fitted with a second bearing 122b, which cooperates with a second track (22E1, 22E2 in FIG. 3a, 22E1', 22E2' in FIG. 3b, 22E3, 22E4 in FIG. 10, 22E5 in FIG. 18a, 22E6 in FIG. 18b, 22E8 in FIG. 21, or 22E7 in FIG. 30). First sliding member 121a, through its fitted first bearing 122a, cooperates with the first track, enabling it to slide on the first track. Second sliding member 121b, through its fitted second bearing 122b, cooperates with the second track, enabling it to slide on the second track. This increases sliding flexibility, reduces frictional resistance, and improves wear resistance.

[0226] In one embodiment of the present application, during the rotation and movement of the first positioning assembly 1, to prevent the first sliding member 121a, which is fitted with the first bearing 122a, from entering the second track, the outer dimensions of the first bearing 122a are configured to be larger than the outer dimensions of the second bearing 122b, or the outer dimensions of the first bearing 122a are configured to be larger than the width of the second track. This configuration ensures smooth rotation and movement of the first positioning assembly 1, preventing the first bearing 122a of the first positioning assembly 1 from sliding out of position. Specifically, the outer dimensions of the first bearing 122a and the outer dimensions of the second bearing 122b are the outer diameter of the first bearing 122a and the outer diameter of the second bearing 122b, respectively.

[0227] In one embodiment of the present application, as shown in Figure 19 , when the second sliding member 121b, which is fitted with the second bearing 122b, slides within the second track, the second positioning assembly 2 further includes a third track 23 to prevent the second bearing 122b from entering the first track. The third track 23 is disposed below the second track. The second sliding member 121b is configured to pass through the second track and insert into the third track 23. This arrangement ensures smooth rotation and movement of the first positioning assembly 1, preventing the second bearing 122b of the first positioning assembly 1 from sliding out of position. In one embodiment, the third track 23 is configured as a groove. In some embodiments, the third track 23 may be omitted, and the depth of the second track may be greater than that of the first track. In this configuration, the second sliding member 121b can be inserted into the second track to a greater depth than the first sliding member 121a, thereby preventing the second bearing 122b from sliding out of position.

[0228] In one embodiment of the present application, as shown in Figures 19 and 20, the third positioning assembly 3 includes a bracket 31, which is disposed at the bottom of the third positioning assembly 3. The positioning assembly 100a also includes a first limiting hook 4a and a second limiting hook 4b, which are located at the front and rear ends of the third positioning assembly 3, respectively. The upper ends of the first limiting hook 4a and the second limiting hook 4b extend upward from the second positioning assembly 2 and are configured to cooperate with the first positioning assembly 1. The lower ends 4a1 of the first limiting hook 4a and 4b of the second limiting hook 4b are respectively fixed to the bracket 31. Specifically, the first limiting hook 4a and the second limiting hook 4b respectively form limiting grooves with the second positioning component 2, and the limiting grooves are used to limit the up and down movement of the first positioning component 1, while allowing the first positioning component 1 to slide and move relative to the second positioning component 2 (in the planes in the front, rear, left and right directions) to increase the stability of the first positioning component in the forward riding mode or the rear riding mode; at the same time, the second positioning component 2 can be fixed on the third positioning component 3 to increase the connection stability of the second positioning component 2 and the third positioning component 3.

[0229] In one embodiment of the present application, as shown in Figures 19 and 20 , to facilitate installation of a child safety seat, the upper surface of the first positioning assembly 1 is provided with at least one engaging mechanism 111. Specifically, at least one engaging mechanism 111 is provided on the upper surface of the upper base 11 of the first positioning assembly 1. Furthermore, to enhance the stability of the child safety seat, an engaging mechanism 111 is provided on each of the front and rear sides of the upper surface of the upper base 11. Specifically, the engaging mechanisms 111 are slots. By providing the engaging mechanisms 111 on the upper surface of the upper base 11 of the first positioning assembly 1, during actual use of the present application, when the positioning assembly 100a is installed on a car seat, the child safety seat 200 (see Figure 109 ) can be engaged and installed with the engaging mechanism 111 of the first positioning assembly 1 of the positioning assembly 100a. After use, the child safety seat 200 can be released from the engaging mechanism 111, thereby achieving a detachable connection between the child safety seat 200 and the positioning assembly 100a.

[0230] In another embodiment of the third aspect, as shown in FIG21 , a positioning assembly 100a includes a first positioning assembly 1 and a second positioning assembly 2. A first track 21E8 and a second track 22E8 are provided on the second positioning assembly 2. The first track 21E8 is a circular track disposed around the center point O of the second positioning assembly 2. Furthermore, the distance between the front end A4 and the rear end A1 of the first track 21E8 is greater than the distance between the leftmost end A3 and the rightmost end A2 of the circular track 21E8. Furthermore, the second track 22E8 is a linear track extending from the center point O of the second positioning assembly 2 along the left-right centerline X to the exterior of the first track 21E8, specifically, to the leftmost end B2 and the rightmost end B3, and intersecting the circular track at the left intersection A3 (i.e., the leftmost end A3 of the circular track 21E8) and the right intersection A2 (i.e., the rightmost end A2 of the circular track 21E8). Alternatively, the second track 22E8 is a linear track, extending from the center point O of the second positioning component 2 to the left and right sides in a direction parallel to the center line X of the second positioning component 2 in the left and right directions to the outside of the annular track 21E8 respectively.

[0231] In this embodiment, the center point B1 of the second track 22E8 coincides with the center point O of the second positioning assembly 2. In other embodiments, the second track 22E8 is a linear track. The second track 22E8 may also extend leftward and rightward to the exterior of the first track 21E8 along a direction parallel to the left-right center line X of the second positioning assembly 2, i.e., the center point B1 of the second track 22E8 is offset from the center point O of the second positioning assembly 2.

[0232] As shown in Figures 21 and 22, in this embodiment, the first positioning assembly 1 is provided with a first slider 121a and a second slider 121b. The positions of the first slider 121a and the second slider 121b on the first positioning assembly 1 correspond to the structure and position of the first track 21E8 and the second track 22E8 on the second positioning assembly 2. Specifically, the positions of the first slider 121a and the second slider 121b are as follows, corresponding to the positioning assembly 100a being in the forward-facing riding mode (as shown in Figure 23): the first slider 121a is provided on the lower surface of the first positioning assembly 1, at a position corresponding to the right intersection A2 of the first track 21E8 and the second track 22E8; the second slider 121b is provided on the lower surface of the first positioning assembly 1, at a position corresponding to the leftmost end B2 of the second track 22E8.

[0233] This embodiment will be described using the positioning assembly 100a shown in Figure 23 in the forward-facing riding mode as an example. Referring to Figures 21-29, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 121a of the first positioning assembly 1 is located at point A2, the rightmost end of the circular track 21E8, as shown in Figure 21, and the second slider 121b is located at point B2, the leftmost end of the second track 22E8, as shown in Figure 21. Rotating the child safety seat causes the first positioning assembly 1 to begin rotating, causing the first slider 121a of the first positioning assembly 1 to slide from point A2 along the first track 21E8 in the direction indicated by the arrow at point A2. Simultaneously, the second slider 121b is driven to slide from point B2 along the second track 22E8 toward the center point B1 of the second track 22E8. During this process, the first positioning assembly 1 gradually extends forward while rotating. As shown in Figures 24 and 25, when the first slider 121a slides to point A4 on the first track 21E8, the second slider 121b slides to point B1, the center point of the second track 22E8. At this point, the first positioning assembly 1 faces leftward and extends forward, placing the child safety seat in a position facing leftward and extending forward. Therefore, this embodiment of the present application enables the child safety seat to rotate to face leftward and extend forward. This allows for flexible adjustment of the child's seating position, improves the child's comfort in the child safety seat, and facilitates carrying a child in or out of the vehicle from the left, both inside and outside the vehicle. This enhances the user experience and satisfaction of the child safety seat.

[0234] As shown in Figure 24, the child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point A4 along the first track 21E8 in the direction indicated by the arrow at point A4. Simultaneously, the second slider 121b is driven to slide from point B1, the center point of the second track 22E8, toward point B3, the rightmost end of the second track 22E8. During this process, the first positioning assembly 1 gradually retracts toward the center point B1 of the second track 22E8 while rotating. As shown in Figures 26 and 27, when the first slider 121a slides from point A4 to point A3, i.e., to the left intersection A3 of the first and second tracks 21E8 and 22E8, the second slider 121b slides to point B3, the rightmost end of the second track 22E8. At this point, the first positioning assembly 1 retracts to the center point B1 of the second track 22E8, and the positioning assembly 100a is in rear-facing riding mode. Therefore, the positioning assembly 100a of the embodiment of the present application can further realize the conversion of the child safety seat from the forward-facing sitting mode to the rear-facing sitting mode, thereby facilitating the adjustment of the child's sitting direction and improving the safety of the child in the child safety seat.

[0235] As shown in Figure 26, the child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point A3 in the direction indicated by the arrow at point A3 along the first track 21E8. Simultaneously, the second slider 121b is driven to slide from point B3 toward the center point B1 of the second track 22E8. During this process, the first positioning assembly 1 rotates to face rightward while gradually extending rearward. As shown in Figures 28 and 29, when the first slider 121a slides from point A3 to point A1, the rearmost point of the first track 21E8, the second slider 121b slides to the center point B1 of the second track 22E8. At this point, the first positioning assembly 1 faces rightward and extends rearward, placing the child safety seat in a rightward and rearward extended position. Therefore, the embodiments of the present application enable flexible adjustment of the child's seating position, improving the child's comfort in the child safety seat. It also facilitates carrying a child in or out of a vehicle from the right side, enhancing the user experience and satisfaction of the child safety seat.

[0236] As shown in Figure 28, the child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point A1 along the first track 21E8 in the direction indicated by the arrow at point A1. Simultaneously, the second slider 121b is driven to slide from point B1 toward point B2, the leftmost end of the second track 22E8. During this process, the first positioning assembly 1 gradually retracts toward the center point B1 of the second track 22E8 while rotating. When the first slider 121a slides from point A1 to point A2, i.e., the right intersection A2 of the first track 21E8 and the second track 22E8, the second slider 121b slides to point B2, the rightmost end of the second track 22E8. At this point, the first positioning assembly 1 retracts to the center point B1 of the second track 22E8, and the positioning assembly 100a is in the forward-facing riding mode, as shown in Figures 21 and 23. Therefore, the positioning assembly 100a of the embodiment of the present application can further enable the child safety seat to be converted from a rear-facing seating mode to a forward-facing seating mode, thereby facilitating adjustment of the child's seating orientation and improving the comfort and safety of the child in the child safety seat. At this point, the child safety seat completes one rotation, achieving corresponding functions at each stage. The child safety seat can also be rotated in the opposite direction of the aforementioned rotation to achieve the corresponding functions at each stage. The corresponding usage process and the effects achieved are the same as described above and will not be repeated herein.

[0237] Alternatively, in one embodiment of the present application, the first and second sliders 121a, 121b may be positioned such that, corresponding to the forward-facing riding mode of the positioning assembly 100a (as shown in FIG. 23 ), the first slider 121a is positioned on the lower surface of the first positioning assembly 1, corresponding to the left intersection A3 of the first track 21E8 and the second track 22E8; and the second slider 121b is positioned on the lower surface of the first positioning assembly 1, corresponding to the rightmost end B3 of the second track 22E8. The specific operating process of the positioning assembly 100a in this embodiment is substantially similar to that described above and will not be further described here.

[0238] A fourth aspect of the present application provides a positioning assembly 100a. In one embodiment of the present application, as shown in Figures 30-32, the positioning assembly 100a includes a first positioning assembly 1 and a second positioning assembly 2. The second positioning assembly 2 is provided with a first track 21E7 and a second track 22E7. The first track 21E7 is a circular track arranged around the center point O of the second positioning assembly 2. The distance between the leftmost end a2 and the rightmost end a4 of the first track 21E7 is greater than the distance between the frontmost end a1 and the rearmost end a3 of the first track 21E7. The second track 22E7 is a linear track extending along the front-to-back direction of the second positioning assembly 2. Specifically, the second track 22E7 extends forward and backward from the center point O of the second positioning assembly 2 along the centerline Y in the front-to-back direction to the exterior of the first track 21E7, specifically to the frontmost end b3 and the rearmost end b2, respectively. It intersects with the circular track at the front intersection point a1 (i.e., the frontmost end a1 of the first track 21E7) and the rear intersection point a3 (i.e., the rearmost end a3 of the first track 21E7).

[0239] In this embodiment, the center point b1 of the second track 22E7 coincides with the center point O of the second positioning assembly 2. In other embodiments, the second track 22E7 may extend forward and backward to the exterior of the first track 21E7 along a direction parallel to the center line Y in the front-to-back direction of the second positioning assembly 2, i.e., the center point b1 of the second track 22E7 deviates from the center point O of the second positioning assembly 2.

[0240] In some embodiments, the first track 21E7 is an elliptical track centered on the center O of the second positioning assembly 2, with the line connecting the leftmost end a2 and the rightmost end a4 of the first track 21E7 being the major axis of the elliptical track. The second track 22E7 is a linear track located in the direction of the minor axis of the elliptical track and extending outward from the elliptical track.

[0241] As shown in Figure 31, in one embodiment of the present application, the first positioning assembly 1 is provided with a first slider 121a and a second slider 121b. The positions of the first slider 121a and the second slider 121b on the first positioning assembly 1 correspond to the structure and position of the first and second tracks on the second positioning assembly 2. Specifically, as shown in Figure 30, the positions of the first slider 121a and the second slider 121b are as follows, corresponding to the positioning assembly 100a being in the forward riding mode (shown in Figure 32): the first slider 121a is provided on the lower surface of the first positioning assembly 1, at a position corresponding to the front intersection a1 of the first track 21E7 and the second track 22E7; the second slider 121b is provided on the lower surface of the first positioning assembly 1, at a position corresponding to the rearmost end b2 of the second track 22E7.

[0242] This application describes this embodiment using the positioning assembly 100a shown in Figure 32 in the forward-facing riding mode as an example. Referring to Figures 30-32, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 121a of the first positioning assembly 1 corresponds to the frontmost point a1 of the first track 21E7 in Figure 30, and the second slider 121b corresponds to the rearmost point b2 of the second track 22E7 in Figure 30. Rotating the child safety seat causes the first positioning assembly 1 to begin rotating, causing the first slider 121a of the first positioning assembly 1 to slide from point a1 along the first track 21E7 in the direction indicated by the arrow at point a1. Simultaneously, the second slider 121b is driven to slide from point b2 along the second track 22E7 toward the center point b1 of the second track 22E7. During this process, the first positioning assembly 1 gradually extends to the left while rotating. As shown in Figures 33 and 34 , when the first slider 121a slides to point a2 on the first track 21E7, the second slider 121b slides to point b1, the center point of the second track 22E7. At this point, the first positioning assembly 1 extends leftward, placing the child safety seat in a leftward extended position. Therefore, this embodiment of the present application allows the child safety seat to rotate while simultaneously extending leftward, making it easier to carry a child in or out of a vehicle through the left side door, enhancing the user experience and satisfaction of the child safety seat.

[0243] As shown in Figure 33, the child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point a2 in the direction indicated by the arrow at point a2 along the first track 21E7. Simultaneously, the second slider 121b is driven to slide from point b1 toward the front end of the second track 22E7, at point b3. During this process, the first positioning assembly 1 gradually retracts toward the center point b1 of the second track 22E7 while rotating. As shown in Figures 35 and 36, when the first slider 121a slides from point a2 to point a3, i.e., to the rear intersection a3 of the first and second tracks 21E7 and 22E7, the second slider 121b slides to the front end b3 of the second track 22E7. At this point, the first positioning assembly 1 retracts to the center point b1 of the second track 22E7, and the positioning assembly 100a is in rear-facing riding mode. Therefore, the positioning assembly 100a of the embodiment of the present application can further realize the conversion of the child safety seat from the forward-facing sitting mode to the rear-facing sitting mode, thereby facilitating the adjustment of the child's sitting direction and improving the safety of the child in the child safety seat.

[0244] As shown in Figure 35 , the child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point a3 in the direction indicated by the arrow at point a3 along the first track 21E7. Simultaneously, the second slider 121b is driven to slide from point b3 toward the center point b1 of the second track 22E7. During this process, the first positioning assembly 1 gradually extends to the right while rotating. As shown in Figures 37 and 38 , when the first slider 121a slides from point a3 to point a4, i.e., to the rightmost end of the first track 21E7 at point a4, the second slider 121b slides to the center point b1 of the second track 22E7. At this point, the first positioning assembly 1 extends to the right, placing the child safety seat in a rightward extended position. Therefore, this embodiment of the present application further enables the child safety seat to extend to the right while rotating, making it easier to carry a child in or out of a vehicle through the right-hand door, enhancing the user experience and satisfaction of the child safety seat. In one embodiment of the present application, as shown in Figures 33 and 34 , when the first positioning assembly 1 is in the state of extending to the left, the first sliding member 121a is disposed on the lower surface of the first positioning assembly 1 at a position corresponding to the leftmost end a2 of the first track 21E7, and the second sliding member 121b is disposed on the lower surface of the first positioning assembly 1 at a position corresponding to the center point b1 of the second track 22E7. Furthermore, as shown in Figures 37 and 38 , when the first positioning assembly 1 is in the state of extending to the right, the first sliding member 121a is disposed on the lower surface of the first positioning assembly 1 at a position corresponding to the rightmost end a4 of the first track 21E7, and the second sliding member 121b is disposed at a position corresponding to the center point b1 of the second track 22E7.

[0245] As shown in Figure 37, the child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point a4 along the first track 21E7 in the direction indicated by the arrow at point a4. Simultaneously, the second slider 121b is driven to slide from point b1 toward the rearmost point b2 of the second track 22E7. During this process, the first positioning assembly 1 gradually retracts toward the center point b1 of the second track 22E7 while rotating. When the first slider 121a slides from point a4 to point a1, that is, to the front intersection a1 of the first and second tracks 21E7 and 22E7, the second slider 121b slides to the rearmost point b2 of the second track 22E7. At this point, the first positioning assembly 1 retracts to the center point b1 of the second track 22E7, and the positioning assembly 100a is in the forward-facing riding mode, as shown in Figures 30 and 32. Therefore, the positioning assembly 100a of the embodiment of the present application can further enable the child safety seat to be converted from a rear-facing seating mode to a forward-facing seating mode, thereby facilitating adjustment of the child's seating orientation and improving the comfort and safety of the child in the child safety seat. At this point, the child safety seat completes one rotation, achieving corresponding functions at each stage. The child safety seat can also be rotated in the opposite direction of the aforementioned rotation to achieve the corresponding functions at each stage. The corresponding usage process and the effects achieved are the same as described above and will not be repeated herein.

[0246] In one embodiment of the present application, as shown in FIG30 , the first track 21E7 can be an elliptical track centered on the center O of the second positioning assembly 2, with the line connecting the leftmost end a2 and the rightmost end a4 of the elliptical track being the major axis of the elliptical track. The second track 22E7 is a linear track located in the direction of the minor axis of the elliptical track and extending outward from the elliptical track, specifically to the frontmost end b3 and the rearmost end b2, and intersecting with the elliptical track at the front intersection point a1 and the rear intersection point a3.

[0247] In yet another embodiment of the present application, as shown in FIG39 , a positioning assembly 100a includes a first positioning assembly 1 and a second positioning assembly 2. A first track 21E7 and a second track 22E7 are provided on the second positioning assembly 2. The position, shape, and structure of the first track 21E7 and the second track 22E7 are identical to those in the embodiment shown in FIG30 , and will not be described again herein.

[0248] In this embodiment, the center point b1 of the second track 22E7 coincides with the center point O of the second positioning assembly 2. In other embodiments, the second track 22E7 may extend forward and backward to the exterior of the first track 21E7 along a direction parallel to the center line Y in the front-to-back direction of the second positioning assembly 2, i.e., the center point b1 of the second track 22E7 deviates from the center point O of the second positioning assembly 2.

[0249] As shown in Figures 39 and 40 , in this embodiment, the first positioning assembly 1 is provided with a first slider 121a and a second slider 121b. The positions of the first slider 121a and the second slider 121b on the first positioning assembly 1 correspond to the structure and position of the first track 21E7 and the second track 22E7 on the second positioning assembly 2. Specifically, the positions of the first slider 121a and the second slider 121b are as follows, corresponding to the forward-facing riding mode of the positioning assembly 100a (as shown in Figure 41): the first slider 121a is provided on the lower surface of the first positioning assembly 1, at a position corresponding to the rearmost end a3 of the first track 21E7, i.e., the rear intersection a3 of the first track 21E7 and the second track 22E7; the second slider 121b is provided on the lower surface of the first positioning assembly 1, at a position corresponding to the frontmost end b3 of the second track 22E7.

[0250] This embodiment will be described using the positioning assembly 100a shown in Figure 41 in the forward-facing riding mode as an example. Referring to Figures 39-41, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 121a of the first positioning assembly 1 is located at the rear intersection a3 of the first track 21E7 and the second track 22E7, and the second slider 121b is located between the center point b1 and the front end b3 of the second track 22E7. Rotating the child safety seat causes the first positioning assembly 1 to begin rotating, causing the first slider 121a of the first positioning assembly 1 to slide along the first track 21E7 from point a3 in the direction indicated by the arrow at point a3. Simultaneously, the second slider 121b is driven to slide along the second track 22E7 from point b3 toward the center point b1 of the second track 22E7. During this process, the first positioning assembly 1 gradually withdraws to the right as it rotates. As shown in Figures 42 and 43, when the first slider 121a slides to point a4 at the rightmost end of the first track 21E7, the second slider 121b slides to point b1 at the center of the second track 22E7. At this point, the first positioning assembly 1 withdraws from the right side, placing the child safety seat in a position where the seat surface faces left and withdraws from the right side. Therefore, this embodiment of the present application allows the child safety seat to rotate while facing left and withdrawing from the right side. This prevents the child safety seat from hitting the left door when rotated to the left when installed on the left side of a vehicle. It also leaves space on the left side for the child's feet, improving the user experience and satisfaction of the child safety seat.

[0251] As shown in Figure 42, the child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point a4 in the direction indicated by the arrow at point a4 along the first track 21E7. Simultaneously, the second slider 121b is driven to slide from point b1 in the direction indicated by the arrow at point b1 toward the rearmost end of the second track 22E7, point b2. During this process, the first positioning assembly 1 gradually retracts toward the center point b1 of the second track 22E7 while rotating. As shown in Figures 44 and 45, when the first slider 121a slides from point a4 to point a1, i.e., to the front intersection a1 of the first and second tracks 21E7 and 22E7, the second slider 121b slides to the rearmost end of the second track 22E7, point b2. At this point, the first positioning assembly 1 retracts to the center point b1 of the second track 22E7, and the positioning assembly 100a is in rear-facing riding mode. Therefore, the positioning assembly 100a of the embodiment of the present application can further realize the conversion of the child safety seat from the forward-facing sitting mode to the rear-facing sitting mode, thereby facilitating the adjustment of the child's sitting direction and improving the safety of the child in the child safety seat.

[0252] As shown in Figure 44, the child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to slide from point a1 in the direction indicated by the arrow at point a1 along the first track 21E7. Simultaneously, the second slider 121b is driven to slide from point b2 in the direction indicated by the arrow at b2 along the second track 22E7 toward the center point b1 of the second track 22E7. During this process, the first positioning assembly 1 gradually withdraws to the left while rotating. As shown in Figures 46 and 47, when the first slider 121a slides to the leftmost point a2 of the first track 21E7, the second slider 121b slides to the center point b1 of the second track 22E7. At this point, the first positioning assembly 1 withdraws to the left, causing the child safety seat to be in a leftward withdrawn state. Therefore, this embodiment of the present application enables the child safety seat to rotate while facing right and exiting from the left. This prevents the child safety seat from hitting the right door when rotated to the right when used in a car seat. It also leaves space on the right side for the child's feet, improving the user experience and satisfaction of the child safety seat. In one embodiment of the present application, as shown in Figures 42 and 43 , when the first positioning assembly 1 is in the rightward exited state, the first sliding member 121a is disposed on the lower surface of the first positioning assembly 1 at a position corresponding to the rightmost end a4 of the first track 21E7. The second sliding member 121b is disposed on the lower surface of the first positioning assembly 1 at a position corresponding to the center point b1 of the second track 22E7. As shown in Figures 46 and 47, corresponding to the state where the first positioning component 1 is withdrawn to the left, the first sliding member 121a is arranged on the lower surface of the first positioning component 1, at a position corresponding to the leftmost end a2 in the first track 21E7, and the second sliding member 121b is arranged on the lower surface of the first positioning component 1, at a position corresponding to the center point b1 of the second track 22E7.

[0253] As shown in Figure 46, the child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point a2 in the direction indicated by the arrow at point a2 along the first track 21E7. Simultaneously, the second slider 121b is driven to slide from point b1 in the direction indicated by the arrow at point b1 along the frontmost point b3 of the second track 22E7. During this process, the first positioning assembly 1 gradually retracts toward the center point b1 of the second track 22E7 while rotating. When the first slider 121a slides from point a2 to point a3, i.e., to the rear intersection a3 of the first and second tracks 21E7 and 22E7, the second slider 121b slides to the frontmost point b3 of the second track 22E7. At this point, the first positioning assembly 1 retracts to the center point b1 of the second track 22E7, and the positioning assembly 100a is in the forward-facing riding mode, as shown in Figures 39 and 41. Therefore, the positioning assembly 100a of the embodiment of the present application can further enable the child safety seat to be converted from a rear-facing seating mode to a forward-facing seating mode, thereby facilitating adjustment of the child's seating orientation and improving the safety of the child in the child safety seat. At this point, the child safety seat completes one rotation, achieving corresponding functions at each stage. The child safety seat can also be rotated in the opposite direction of the aforementioned rotation to achieve the corresponding functions at each stage. The corresponding usage process and the effects achieved are the same as described above and will not be repeated herein.

[0254] In yet another embodiment of the present application, as shown in FIG48 , a positioning assembly 100a includes a first positioning assembly 1 and a second positioning assembly 2. The second positioning assembly 2 is provided with a first track 21E7 and a second track 22E7. The first track 21E7 is an annular track disposed around the center point O of the second positioning assembly 2. The distance between the leftmost end a2 and the rightmost end a4 of the first track 21E7 is greater than the distance between the frontmost end a1 and the rearmost end a3 of the first track 21E7. The second track 22E7 is a linear track extending along the front-to-back direction of the second positioning assembly 2. Specifically, the second track 22E7 extends forward and rearward from the center point O of the second positioning assembly 2 along the centerline Y in the front-to-back direction to the exterior of the first track 21E7, specifically, to the frontmost end b3 and the rearmost end b2, and intersects with the annular track at the front intersection point a1 (i.e., the frontmost end a1 of the first track 21E7) and the rear intersection point a3 (i.e., the rearmost end a3 of the first track 21E7).

[0255] In this embodiment, the center point b1 of the second track 22E7 coincides with the center point O of the second positioning assembly 2. In other embodiments, the second track 22E7 may extend forward and backward to the exterior of the first track 21E7 along a direction parallel to the center line Y in the front-to-back direction of the second positioning assembly 2, i.e., the center point b1 of the second track 22E7 deviates from the center point O of the second positioning assembly 2.

[0256] As shown in Figures 48 and 49, in this embodiment, the first positioning assembly 1 is provided with a first slider 121a and a second slider 121b. Optionally, the second slider 121b is provided at the center point O' (e.g., the geometric center) of the first positioning assembly 1, with the first slider 121a located to the left of the first positioning assembly 1. The positions of the first and second sliders 121a, 121b on the first positioning assembly 1 correspond to the structure and position of the first and second tracks 21E7, 22E7 on the second positioning assembly 2. Specifically, the positions of the first and second sliders 121a, 121b correspond to the forward-facing riding mode (shown in Figure 50) or the rearward-facing riding mode (shown in Figure 54): the first slider 121a is provided on the lower surface of the first positioning assembly 1, at a position corresponding to the leftmost end a2 of the first track 21E7; the second slider 121b is provided on the lower surface of the first positioning assembly 1, at a position corresponding to the center point b1 of the second track 22E7.

[0257] This embodiment will be described using the positioning assembly 100a shown in Figure 50 in the forward-facing riding mode as an example. Referring to Figures 48-50, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 121a of the first positioning assembly 1 is located at a position corresponding to the leftmost end a2 of the first track 21E7, and the second slider 121b is located at a position corresponding to the center point b1 of the second track 22E7. Rotating the child safety seat causes the first positioning assembly 1 to begin rotating, causing the first slider 121a of the first positioning assembly 1 to slide from point a2 along the first track 21E7 in the direction indicated by the arrow at point a2. Simultaneously, the second slider 121b is driven to slide from point b1 along the second track 22E7 toward the front end b3 of the second track 22E7 in the direction indicated by the arrow at point b1. During this process, the first positioning assembly 1 rotates and extends forward. As shown in Figures 51 and 52, when the first slider 121a slides to the rearmost point a3 in the first track 21E7, the second slider 121b slides to the frontmost point b3 in the second track 22E7. At this point, the first positioning assembly 1 faces leftward and extends forward, placing the child safety seat in a position facing leftward and extending forward. This embodiment of the present application allows the child safety seat to rotate while facing leftward and extending forward. This allows for flexible adjustment of the child's seating position and improves the child's comfort while riding in the child safety seat. For example, when the child safety seat is placed in the rear seat of a seven-seater, with the car door close to the front of the seat, this structure allows the seat to rotate toward the left door and extend forward, bringing it closer to the door. This facilitates carrying a child in and out from the left, improving the user experience and satisfaction of the child safety seat.

[0258] As shown in Figure 51, the child safety seat continues to rotate, driving the first positioning assembly 1 of the positioning assembly to begin rotating. This causes the first slider 121a on the first positioning assembly 1 to slide from point a3 in the direction indicated by the arrow at point a3 along the first track 21E7. Simultaneously, the second slider 121b is driven to slide from point b3 along the second track 22E7 in the direction indicated by the arrow at point b3 toward the center point b1 of the second track 22E7. During this process, the first positioning assembly 1 gradually retracts toward the center point b1 of the second track 22E7 while rotating. As shown in Figures 53 and 54, when the first slider 121a slides to the rightmost point a4 of the first track 21E7, the second slider 121b slides to the center point b1 of the second track 22E7. At this point, the first positioning assembly 1 retracts to the center point b1 of the second track 22E7, placing the child safety seat in a rearward-facing position and retracting from the front to the center point b1 of the second track 22E7, i.e., in rearward-facing seating mode. Therefore, the positioning assembly 100a of the embodiment of the present application can further realize the conversion of the child safety seat from the forward-facing sitting mode to the rear-facing sitting mode, thereby facilitating the adjustment of the child's sitting direction and improving the safety of the child in the child safety seat.

[0259] As shown in Figure 53, the child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to continue sliding from point a4 in the direction indicated by the arrow at point a4 along the first track 21E7. Simultaneously, the second slider 121b is driven to slide from point b1 in the direction indicated by the arrow at point b1 toward the rearmost end of the second track 22E7, point b2. During this process, the first positioning assembly 1 gradually extends behind the second positioning assembly 2 while rotating. As shown in Figures 55 and 56, when the first slider 121a slides from point a4 to point a1, i.e., to the front intersection a1 of the first track 21E7 and the second track 22E7, the second slider 121b slides to the rearmost end of the second track 22E7, point b2. At this point, the first positioning assembly 1 faces right and extends from the rear, placing the child safety seat in a position facing right and extending from the rear. Therefore, this embodiment of the present application can realize that the child safety seat rotates while facing to the right and extending from the rear, which can realize flexible adjustment of the child's sitting position, improve the comfort of the child sitting in the child safety seat, and also make it easier to carry the child in or out from the right side inside or outside the car, thereby improving the user experience and satisfaction of the child safety seat.

[0260] As shown in Figure 55, the child safety seat continues to rotate, causing the first slider 121a on the first positioning assembly 1 to slide from point a1 along the first track 21E7 in the direction indicated by the arrow at point a1. Simultaneously, the second slider 121b is driven to slide from point b2 along the second track 22E7 toward the center point b1 of the second track 22E7. During this process, the first positioning assembly 1 rotates while gradually retreating forward to the center point b1 of the second track 22E7. When the first slider 121a reaches the leftmost point a2 of the first track 21E7, the second slider 121b slides to the center point b1 of the second track 22E7. At this point, the first positioning assembly 1 retreats to the center point b1 of the second track 22E7, placing the child safety seat in a forward-facing position and retreating rearward to the center point b1 of the second track 22E7, i.e., in the forward-facing seating mode, as shown in Figures 48 and 50. Therefore, the positioning assembly 100a of the embodiment of the present application can further enable the child safety seat to be converted from a rear-facing seating mode to a forward-facing seating mode, thereby facilitating adjustment of the child's seating orientation and improving the safety of the child in the child safety seat. At this point, the child safety seat completes one rotation, achieving corresponding functions at each stage. The child safety seat can also be rotated in the opposite direction of the aforementioned rotation to achieve the corresponding functions at each stage. The corresponding usage process and the effects achieved are the same as described above and will not be repeated herein.

[0261] In one embodiment of the present application, when the positioning assembly 100a is in the rear-facing riding mode, the first slider 121a is disposed on the lower surface of the first positioning assembly 1, at a position corresponding to the leftmost end a2 of the first track 21E7; the second slider 121b is disposed on the lower surface of the first positioning assembly 1, at a position corresponding to the center point b1 of the second track 22E7. In other words, in this embodiment, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 121a is disposed on the lower surface of the first positioning assembly 1, at a position corresponding to the rightmost end a4 of the first track 21E7; and the second slider 121b is disposed on the lower surface of the first positioning assembly 1, at a position corresponding to the center point b1 of the second track 22E7. The working process of the positioning component 100a of this embodiment is substantially the same as the above process and will not be described in detail here. The difference from the above process is that, during the working process of this embodiment, corresponding to the positioning component 100a being in the rear-facing riding mode, first, the child safety seat can be placed in a state facing right and extending from the front; then the child safety seat can be returned to the center point b1 of the second track 22E7, and placed in the forward riding mode; then the child safety seat can be placed in a state facing left and extending from the rear; finally, the child safety seat can be placed in a state facing rearward and returning from the front to the center point b1 of the second track 22E7, that is, returning to the original rear-facing riding mode.

[0262] In some embodiments of the present application, the first sliding member 121a and the second sliding member 121b may also be provided on the second positioning assembly 2, and correspondingly, the first track and the second track are provided on the first positioning assembly 1. Specific implementation methods of the present application will be further described below.

[0263] A fifth aspect of the present application provides a positioning assembly 100a, as shown in Figures 57-59 and 63. Positioning assembly 100a includes a first positioning assembly 1 and a second positioning assembly 2. The first positioning assembly 1 is provided with a first track 121E1 and a second track 122E1, and the second positioning assembly 2 is provided with a first slider 221a and a second slider 221b. Furthermore, the first slider 221a and the first track 121E1 are configured to slide relative to each other, and the second slider 221b and the second track 122E1 are configured to slide relative to each other. The first track 121E1 and the second track 122E1 are provided on the lower surface of the first positioning assembly 1, or they can penetrate the upper and lower surfaces of the first positioning assembly 1.

[0264] Specifically, in one embodiment of the present application, as shown in Figures 57 and 59, the first track 121E1 is a circular track. The first track 121E1 is arranged around the center point O' of the first positioning assembly 1. The distance between the front end A4 (located at the front of the first positioning assembly 1) and the rear end A1 (located at the rear of the first positioning assembly 1) of the first track 121E1 is greater than the distance between the leftmost end A3 (located at the left of the first positioning assembly 1) and the rightmost end A2 (located at the right of the first positioning assembly 1) of the first track 121E1. The second track 122E1 is a linear track. It extends from the center point O' of the first positioning assembly 1 along the left-right centerline x to the outside of the first track 121E1 to the left and right, respectively. Specifically, it extends to the leftmost end B2 and the rightmost end B3 of the second track 122E1, respectively. The left-right centerline x of the first positioning assembly 1 refers to the centerline that passes through the center O' of the first positioning assembly 1 and extends to the leftmost and rightmost ends of the first positioning assembly 1. The center line y of the first positioning assembly 1 in the front-to-back direction refers to a center line passing through the center O' of the first positioning assembly 1 and extending toward the frontmost part and the rearmost part of the first positioning assembly 1.

[0265] In this embodiment, the center point B1 of the second track 122E1 coincides with the center point O' of the first positioning assembly 1, as shown in FIG59. In other embodiments, the second track 122E1 may extend leftward and rightward to the exterior of the first track 121E1, respectively, along a direction parallel to the left-right center line x of the first positioning assembly 1. In other words, the center point B1 of the second track 122E1 deviates from the center point O' of the first positioning assembly 1.

[0266] The first track 121E1 is an elliptical track centered on the center O' of the first positioning assembly 1. The line connecting the front end A4 and the rear end A1 of the first track 121E1 is the major axis of the elliptical track. The second track 122E1 is a linear track located in the direction of the minor axis of the elliptical track and extending outward from the elliptical track.

[0267] As shown in Figure 58 , in this embodiment, the second positioning assembly 2 is provided with a first slider 221a and a second slider 221b . The positions of the first slider 221a and the second slider 221b on the second positioning assembly 2 correspond to the structure and position of the first track 121E1 and the second track 122E1 on the first positioning assembly 1. Specifically, as shown in Figures 58 and 60 , the positions of the first slider 221a and the second slider 221b are as follows, corresponding to the forward-facing riding mode of the positioning assembly 100a (as shown in Figure 61 ): the first slider 221a is provided on the upper surface of the second positioning assembly 2, at a position corresponding to the leftmost end A3 of the first track 121E1, i.e., the left intersection A3 of the first track 121E1 and the second track 122E1; the second slider 221b is provided on the upper surface of the second positioning assembly 2, at a position corresponding to the rightmost end B3 of the second track 122E1.

[0268] This embodiment will be described using the positioning assembly 100a shown in Figure 61 in the forward-facing riding mode as an example. Referring to Figures 57, 60, and 61, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 221a on the second positioning assembly 2 is located at the leftmost end A3 of the first track 121E1, and the second slider 221b is located at the rightmost end B3 of the second track 122E1. Rotating the child safety seat causes the first positioning assembly 1 to begin rotating relative to the second positioning assembly 2, causing the rearmost end A1 of the first track 121E1 on the first positioning assembly 1 to slide toward the first slider 221a in the direction indicated by the arrow at point A1. Simultaneously, the center point B1 of the second track 122E1 slides toward the second slider 221b in the direction indicated by the arrow at point B1. During this process, the first positioning assembly 1 gradually extends to the right while rotating. As shown in Figures 62 and 63, when the rearmost end A1 of the first track 121E1 slides to the first slider 221a, the center point B1 of the second track 122E1 slides to the second slider 221b. At this point, the first positioning assembly 1 extends to the right, placing the child safety seat in a rightwardly extended position. Therefore, this embodiment of the present application allows the child safety seat to rotate while extending to the right, facilitating the transfer of children from the right side of a vehicle door and improving the user experience and satisfaction of the child safety seat. In one embodiment of the present application, as shown in Figure 62, corresponding to the rightwardly extended position of the first positioning assembly 1, the first slider 221a is disposed on the upper surface of the second positioning assembly 2, the rearmost end A1 of the first track 121E1 is located at a position corresponding to the first slider 221a, the second slider 221b is disposed on the upper surface of the second positioning assembly 2, and the center point B1 of the second track 122E1 is located at a position corresponding to the second slider 221b.

[0269] As shown in Figure 62, continued rotation of the child safety seat causes the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2, causing the rightmost end A2 of the first track 121E1 on the first positioning assembly 1 to slide in the direction indicated by the arrow at point A2 toward the first slider 221a. Simultaneously, this causes the leftmost end B2 of the second track 122E1 to slide in the direction indicated by the arrow at point B2 toward the second slider 221b. During this process, the first positioning assembly 1 rotates and gradually retracts to the center of the second positioning assembly 2. As shown in Figures 64 and 65, when the rightmost end A2 of the first track 121E1 slides to the first slider 221a, the leftmost end B2 of the second track 122E1 slides to the second slider 221b. At this point, the first positioning assembly 1 faces rearward and retracts to the center of the second positioning assembly 2, placing the child safety seat in rearward-facing seating mode. Therefore, this embodiment of the present application further enables the child safety seat to be converted from forward-facing seating mode to rearward-facing seating mode, facilitating adjustment of the child's seating orientation and improving child safety.

[0270] As shown in Figure 64, the child safety seat continues to rotate, causing the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2, causing the front end A4 of the first track 121E1 on the first positioning assembly 1 to slide toward the first sliding member 221a along the direction indicated by the arrow at point A4. Simultaneously, the center point B1 of the second track 122E1 slides toward the second sliding member 221b along the direction indicated by the arrow at point B1. During this process, the first positioning assembly 1 gradually withdraws to the right while rotating. As shown in Figures 66 and 67, when the front end A4 of the first track 121E1 slides to the first sliding member 221a, the center point B1 of the second track 122E1 slides to the second sliding member 221b. At this point, the first positioning assembly 1 withdraws from the right side, causing the child safety seat to be withdrawn to the right. This embodiment of the present application enables the child safety seat to be rotated and simultaneously withdrawn from the right side. This prevents the child safety seat from hitting the left door when rotated to the left for use when installed on the left side of the car seat. Furthermore, some space is reserved on the left side for the child to place their feet, thereby improving the user experience and satisfaction of the child safety seat. In one embodiment of the present application, as shown in FIG66 , corresponding to the rightward withdrawal state of the first positioning assembly 1, the first sliding member 221a is disposed on the upper surface of the second positioning assembly 2, the front end A4 of the first track 121E1 is located at a position corresponding to the first sliding member 221a, the second sliding member 221b is disposed on the upper surface of the second positioning assembly 2, and the center point B1 of the second track 122E1 is located at a position corresponding to the second sliding member 221b.

[0271] As shown in Figure 66, the child safety seat continues to rotate, driving the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2. This causes the leftmost end A3 of the first track 121E1 on the first positioning assembly 1 to slide toward the first slider 221a along the direction indicated by the arrow at point A3. Simultaneously, this causes the rightmost end B3 of the second track 122E1 to slide toward the second slider 221b along the direction indicated by the arrow at point B3. During this process, the first positioning assembly 1 rotates while gradually retracting to the center of the second positioning assembly 2. When the leftmost end A3 of the first track 121E1 slides to the first slider 221a, the rightmost end B3 of the second track 122E1 slides to the second slider 221b. At this point, the first positioning assembly 1 faces forward and retracts to the center of the second positioning assembly 2, placing the child safety seat in a forward-facing seating mode, as shown in Figures 60 and 61. Therefore, this embodiment of the present application further enables the child safety seat to be converted from a rearward-facing seating mode to a forward-facing seating mode, thereby facilitating adjustment of the child's seating orientation and improving the safety of the child in the child safety seat. At this point, the child safety seat has completed one rotation, achieving corresponding functions at each stage. The child safety seat can also be rotated in the opposite direction of the aforementioned rotation to achieve corresponding functions at each stage. The corresponding usage process and the effects achieved are the same as described above and will not be repeated in this application.

[0272] In yet another embodiment of the present application, as shown in FIG69 , a positioning assembly 100a includes a first positioning assembly 1 and a second positioning assembly 2. A first track 121E1 and a second track 122E1 are provided on the first positioning assembly 1. The position, shape, and structure of the first track 121E1 and the second track 122E1 are identical to those in the embodiment shown in FIG57 , and will not be described again herein.

[0273] As shown in Figure 68, in this embodiment, the second positioning assembly 2 is provided with a first slider 221a and a second slider 221b. The positions of the first slider 221a and the second slider 221b on the second positioning assembly 2 correspond to the structure and position of the first track 121E1 and the second track 122E1 on the first positioning assembly 1. Specifically, as shown in Figures 68 and 69, corresponding to the forward-facing riding mode of the positioning assembly 100a, the first slider 221a is provided on the upper surface of the second positioning assembly 2, located at a position corresponding to the rightmost end A2 of the first track 121E1, i.e., the right intersection A2 of the first track 121E1 and the second track 122E1; the second slider 221b is provided on the upper surface of the second positioning assembly 2, located at a position corresponding to the leftmost end B2 of the second track 122E1.

[0274] This application describes this embodiment using the positioning assembly 100a shown in Figure 61 in the forward-facing riding mode as an example. Referring to Figures 69 and 61, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 221a on the second positioning assembly 2 is located at the rightmost end A2 of the first track 121E1, and the second slider 221b is located at the leftmost end B2 of the second track 122E1. Rotating the child safety seat causes the first positioning assembly 1 to begin rotating relative to the second positioning assembly 2, causing the front end A4 of the first track 121E1 on the first positioning assembly 1 to slide toward the first slider 221a along the direction indicated by the arrow at point A4. Simultaneously, the center point B1 of the second track 122E1 slides toward the second slider 221b along the direction indicated by the arrow at point B1. During this process, the first positioning assembly 1 gradually withdraws to the left while rotating. As shown in Figure 70 , when the front end A4 of the first track 121E1 slides to the first slider 221a, the center point B1 of the second track 122E1 slides to the second slider 221b. At this point, the first positioning assembly 1 retracts to the left, placing the child safety seat in a leftward-retracted position. This embodiment of the present application allows the child safety seat to retract to the left while rotating. This prevents the child safety seat from hitting the right door when installed on the right seat of a vehicle. It also leaves space on the right side for the child's feet, improving the user experience and satisfaction of the child safety seat. In one embodiment of the present application, as shown in Figure 70 , when the positioning assembly 1 is in the leftward-retracted position, the first slider 221a is disposed on the upper surface of the second positioning assembly 2, the front end A4 of the first track 121E1 is located at a position corresponding to the first slider 221a, the second slider 221b is disposed on the upper surface of the second positioning assembly 2, and the center point B1 of the second track 122E1 is located at a position corresponding to the second slider 221b.

[0275] As shown in Figure 70, continued rotation of the child safety seat causes the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2, causing the leftmost end A3 of the first track 121E1 on the first positioning assembly 1 to slide along the direction indicated by the arrow at point A3 toward the first slider 221a. Simultaneously, this causes the rightmost end B3 of the second track 122E1 to slide along the arrow at point B3 toward the second slider 221b. During this process, the first positioning assembly 1 rotates while gradually retracting to the center of the second positioning assembly 2. As shown in Figure 71, when the leftmost end A3 of the first track 121E1 slides to the first slider 221a, the rightmost end B3 of the second track 122E1 slides to the second slider 221b. At this point, the first positioning assembly 1 faces rearward and retracts to the center of the second positioning assembly 2, placing the child safety seat in rearward-facing seating mode. Therefore, this embodiment of the present application further enables the child safety seat to be converted from forward-facing seating mode to rearward-facing seating mode, facilitating adjustment of the child's seating orientation and improving child safety.

[0276] As shown in Figure 71, the child safety seat continues to rotate, causing the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2, causing the rearmost end A1 of the first track 121E1 on the first positioning assembly 1 to slide toward the first sliding member 221a along the direction indicated by the arrow at point A1. Simultaneously, this causes the center point B1 of the second track 122E1 to slide toward the second sliding member 221b along the direction indicated by the arrow at point B1. During this process, the first positioning assembly 1 gradually extends to the left while rotating. As shown in Figure 72, when the rearmost end A1 of the first track 121E1 slides to the first sliding member 221a, the center point B1 of the second track 122E1 slides to the second sliding member 221b. At this point, the first positioning assembly 1 extends from the left, causing the child safety seat to be extended to the left. This embodiment of the present application allows the child safety seat to extend to the left while rotating, making it easier to carry a child in or out of a car through a left-side door, improving the user experience and satisfaction of the child safety seat. In one embodiment of the present application, as shown in Figure 72, corresponding to the state where the first positioning component 1 is extended to the left, the first sliding member 221a is arranged on the upper surface of the second positioning component 2, the rearmost end A1 of the first track 121E1 is located at the position corresponding to the first sliding member 221a, the second sliding member 221b is arranged on the upper surface of the second positioning component 2, and the center point B1 of the second track 122E1 is located at the position corresponding to the second sliding member 221b.

[0277] As shown in Figure 72, continued rotation of the child safety seat causes the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2, causing the rightmost end A2 of the first track 121E1 on the first positioning assembly 1 to slide along the direction indicated by the arrow at point A2 toward the first slider 221a. Simultaneously, this causes the leftmost end B2 of the second track 122E1 to slide along the direction indicated by the arrow at point B2 toward the second slider 221b. During this process, the first positioning assembly 1 rotates while gradually retracting to the center of the second positioning assembly 2. When the rightmost end A2 of the first track 121E1 slides to the first slider 221a, the leftmost end B2 of the second track 122E1 slides to the second slider 221b. At this point, the first positioning assembly 1 faces forward and retracts to the center of the second positioning assembly 2, placing the child safety seat in the forward-facing seating mode, as shown in Figure 69. Therefore, this embodiment of the present application further enables the child safety seat to be converted from rearward-facing to forward-facing seating mode, facilitating adjustment of the child's seating orientation and improving the safety of the child in the child safety seat. At this point, the child safety seat has completed one rotation, achieving corresponding functions at each stage. The child safety seat can also be rotated in the opposite direction of the aforementioned rotation to achieve corresponding functions at each stage. The corresponding usage process and the effects achieved are the same as described above and will not be repeated in this application.

[0278] In yet another embodiment of the present application, as shown in FIG74 , a positioning assembly 100a includes a first positioning assembly 1 and a second positioning assembly 2. A first track 121E1 and a second track 122E1 are provided on the first positioning assembly 1. The position, shape, and structure of the first track 121E1 and the second track 122E1 are identical to those in the embodiments shown in FIG57 or FIG69 above, and will not be described again herein.

[0279] As shown in Figure 73, in this embodiment, the second positioning assembly 2 is provided with a first slider 221a and a second slider 221b. The positions of the first slider 221a and the second slider 221b on the second positioning assembly 2 correspond to the structure and position of the first track 121E1 and the second track 122E1 on the first positioning assembly 1. Specifically, as shown in Figures 73 and 74, corresponding to the forward-facing riding mode of the positioning assembly 100a, the first slider 221a is provided on the upper surface of the second positioning assembly 2, at a position corresponding to the rearmost end A1 of the first track 121E1; the second slider 221b is provided on the upper surface of the second positioning assembly 2, at a position corresponding to the center point B1 of the second track 122E1.

[0280] This embodiment will be described using the positioning assembly 100a shown in Figure 61 in the forward-facing riding mode as an example. Referring to Figures 74 and 61, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 221a on the second positioning assembly 2 is located at the rearmost end A1 of the first track 121E1, and the second slider 221b is located at the center point B1 of the second track 122E1. Rotating the child safety seat causes the first positioning assembly 1 to begin rotating relative to the second positioning assembly 2, causing the rightmost end A2 of the first track 121E1 on the first positioning assembly 1 to slide toward the first slider 221a in the direction indicated by the arrow at point A2. Simultaneously, the leftmost end B2 of the second track 122E1 slides toward the second slider 221b in the direction indicated by the arrow at point B2. During this process, the first positioning assembly 1 rotates while gradually extending rearward toward the right. When the rightmost end A2 of the first track 121E1 slides to the first sliding member 221a, the leftmost end B2 of the second track 122E1 slides to the second sliding member 221b. At this point, the first positioning assembly 1 extends toward the right and rearward, placing the child safety seat in a rightward, rearward-extended position, as shown in FIG75. Therefore, the embodiments of the present application enable flexible adjustment of the child's seating position, improving the child's comfort in the child safety seat. They also facilitate carrying a child in or out of a vehicle from the right side, both inside and outside the vehicle, enhancing the user experience and satisfaction of the child safety seat.

[0281] As shown in Figure 75 , the child safety seat continues to rotate, causing the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2, causing the front end A4 of the first track 121E1 on the first positioning assembly 1 to slide along the direction indicated by the arrow at point A4 toward the first slider 221a. Simultaneously, this causes the center point B1 of the second track 122E1 to slide along the arrow at point B1 toward the second slider 221b. During this process, the first positioning assembly 1 rotates and gradually retracts toward the center of the second positioning assembly 2. As shown in Figure 76 , when the front end A4 of the first track 121E1 slides to the first slider 221a, the center point B1 of the second track 122E1 slides to the second slider 221b. At this point, the first positioning assembly 1 faces rearward and retracts to the center of the second positioning assembly 2, placing the child safety seat in rearward-facing seating mode. Therefore, this embodiment of the present application further enables the child safety seat to be converted from forward-facing seating mode to rearward-facing seating mode, facilitating adjustment of the child's seating orientation and improving child safety.

[0282] As shown in Figure 76, continued rotation of the child safety seat causes the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2, causing the leftmost end A3 of the first track 121E1 on the first positioning assembly 1 to slide along the direction indicated by the arrow at point A3 toward the first slider 221a. Simultaneously, this causes the rightmost end B3 of the second track 122E1 to slide along the arrow at point B3 toward the second slider 221b. During this process, the first positioning assembly 1 rotates while gradually extending rearward and facing leftward. As shown in Figure 77, when the leftmost end A3 of the first track 121E1 slides to the first slider 221a, the rightmost end B3 of the second track 122E1 slides to the second slider 221b. At this point, the first positioning assembly 1 extends rearward and facing leftward, placing the child safety seat in a position facing rearward and extending leftward. Therefore, the embodiments of the present application enable flexible adjustment of the child's seating position, improving the child's comfort in the child safety seat. They also facilitate carrying a child in or out of a vehicle from the left, both inside and outside the vehicle, enhancing the user experience and satisfaction of the child safety seat.

[0283] As shown in Figure 77, the child safety seat continues to rotate, causing the rearmost point A1 of the first track 121E1 on the first positioning assembly 1 to slide toward the first sliding member 221a along the direction indicated by the arrow at point A1. Simultaneously, this causes the center point B1 of the second track 122E1 to slide toward the second sliding member 221b along the direction indicated by the arrow at point B1. During this process, the first positioning assembly 1 rotates and retracts toward the center of the second positioning assembly 2. As shown in Figure 74, when the rearmost point A1 of the first track 121E1 slides to the first sliding member 221a, the center point B1 of the second track 122E1 slides to the second sliding member 221b. At this point, the first positioning assembly 1 is in forward-facing riding mode, placing the child safety seat in forward-facing riding mode. Therefore, this embodiment of the present application further enables the child safety seat to be converted from rear-facing to forward-facing riding mode, facilitating adjustment of the child's seating orientation and improving safety for the child in the child safety seat. The child safety seat now completes one rotation, with each stage achieving corresponding functions. The child safety seat can also be rotated in the opposite direction of the above-mentioned rotation direction to achieve the corresponding functions in each stage. The corresponding usage process and the effects that can be achieved are the same as those described above, and this application will not repeat the description.

[0284] In yet another embodiment of the present application, the invention is substantially similar to the embodiments shown in Figures 73 and 74 above, with the difference being that, corresponding to the positioning assembly 100a being in the forward-facing riding mode, the first sliding member 221a is disposed on the upper surface of the second positioning assembly 2, located at a position corresponding to the frontmost end A4 of the first track 121E1. The operating process of the positioning assembly 100a in this embodiment is substantially the same as that described above and will not be further described here. The difference lies in enabling the child safety seat to be extended forward. Specifically, during this operating process, the child safety seat can first be positioned in a rightward-facing, forward-extended position; then, the child safety seat can be retracted to the center point B1 of the second track 122E1 to a rearward-facing riding mode; then, the child safety seat can be positioned in a leftward-facing, forward-extended position; and finally, the child safety seat can be positioned in a forward-facing, forward-extended position back to the center point B1 of the second track 122E1, returning to the original forward-facing riding mode.

[0285] A sixth aspect of the present application provides a positioning assembly 100a, as shown in Figures 78 and 80. The positioning assembly 100a includes a first positioning assembly 1 and a second positioning assembly 2. The first positioning assembly 1 is provided with a first track 121E2 and a second track 122E2, and the second positioning assembly 2 is provided with a first slider 221a and a second slider 221b. The first track 121E2 is an annular track, arranged around the center point O' of the first positioning assembly 1. The distance between the leftmost end a2 (located on the left side of the first positioning assembly 1) and the rightmost end a3 (located on the right side of the first positioning assembly 1) of the first track 121E2 is greater than the distance between the frontmost end a4 (located relatively in front of the first positioning assembly 1) and the rearmost end a1 (located relatively in the rear of the first positioning assembly 1) of the first track 121E2. The second track 122E2 is a linear track, extending from the center point O' of the first positioning component 1 along the center line y in the front-to-back direction, to the front and rear ends of the first track 121E2, specifically, reaching the front end b2 and the rear end b3 of the second track 122E2, respectively.

[0286] In this embodiment, the center point b1 of the second track 122E2 coincides with the center point O' of the first positioning assembly 1. In other embodiments, the second track 122E2 may extend forward and backward to the exterior of the first track 121E2, respectively, along a direction parallel to the center line y in the front-to-back direction of the first positioning assembly 1. In other words, the center point b1 of the second track 122E2 is offset from the center point O' of the first positioning assembly 1.

[0287] In some embodiments of the present application, the first track 121E2 is an elliptical track centered on the center O' of the first positioning assembly 1, and the line connecting the leftmost end a2 and the rightmost end a3 of the first track 121E2 is the major axis of the elliptical track; the second track 122E2 is a linear track located in the minor axis direction of the elliptical track and extending outward from the elliptical track.

[0288] In this embodiment, the second positioning assembly 2 is correspondingly provided with a first slider 221a and a second slider 221b. The positions of the first slider 221a and the second slider 221b on the second positioning assembly 2 correspond to the structure and position of the first track 121E2 and the second track 122E2 on the first positioning assembly 1. Specifically, as shown in Figures 79 and 81, the positions of the first slider 221a and the second slider 221b are as follows: when the positioning assembly 100a is in the forward riding mode, the first slider 221a is provided on the upper surface of the second positioning assembly 2, at a position corresponding to the leftmost end a2 of the first track 121E2; the second slider 221b is provided on the upper surface of the second positioning assembly 2, at a position corresponding to the center point b1 of the second track 122E2.

[0289] This application describes this embodiment using the positioning assembly 100a shown in Figures 61 and 81 in the forward-facing riding mode as an example. As shown in Figure 81, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 221a is disposed on the upper surface of the second positioning assembly 2, located at a position corresponding to the leftmost end a2 of the first track 121E2. The second slider 221b is disposed on the upper surface of the second positioning assembly 2, located at a position corresponding to the center point b1 of the second track 122E2. Rotating the child safety seat causes the first positioning assembly 100a to begin rotating relative to the second positioning assembly 2, causing the rearmost end a1 of the first track 121E2 on the first positioning assembly 1 to slide toward the first slider 221a along the direction indicated by the arrow at point a1. Simultaneously, the frontmost end b2 of the second track 122E2 slides toward the second slider 221b along the direction indicated by the arrow at point b2. During this process, the first positioning assembly 1 gradually withdraws from the left side as it rotates. As shown in Figure 82, when the rearmost end a1 of the first rail 121E2 slides to the first slider 221a, the frontmost end b2 of the second rail 122E2 slides to the second slider 221b. At this point, the first positioning assembly 1 withdraws from the left side, placing the child safety seat in a leftward withdrawal position. This embodiment of the present application allows the child safety seat to withdraw from the left side while rotating. This prevents the child safety seat from hitting the right door when installed on the right seat of a car. It also leaves space on the right side for the child's feet, improving the user experience and satisfaction of the child safety seat. In one embodiment of the present application, as shown in Figure 82, corresponding to the leftward withdrawal position of the first positioning assembly 1, the first slider 221a is disposed on the upper surface of the second positioning assembly 2, the rearmost end a1 of the first rail 121E2 is located at a position corresponding to the first slider 221a, the second slider 221b is disposed on the upper surface of the second positioning assembly 2, and the frontmost end b2 of the second rail 122E2 is located at a position corresponding to the second slider 221b.

[0290] As shown in Figure 82, continued rotation of the child safety seat causes the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2, causing the rightmost end a3 of the first track 121E2 on the first positioning assembly 1 to slide along the direction indicated by the arrow at point a3 toward the first slider 221a. Simultaneously, this causes the center point b1 of the second track 122E2 to slide along the direction indicated by the arrow at point b1 toward the second slider 221b. During this process, the first positioning assembly 1 rotates and gradually retracts to the center of the second positioning assembly 2. As shown in Figure 83, when the rightmost end a3 of the first track 121E2 slides to the first slider 221a, the center point b1 of the second track 122E2 slides to the second slider 221b. At this point, the first positioning assembly 1 faces rearward and retracts to the center of the second positioning assembly 2, placing the child safety seat in rearward-facing seating mode. Therefore, this embodiment of the present application further enables the child safety seat to be converted from forward-facing seating mode to rearward-facing seating mode, facilitating adjustment of the child's seating orientation and improving child safety.

[0291] As shown in Figure 83, the child safety seat continues to rotate, driving the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2. This causes the front end a4 of the first track 121E2 on the first positioning assembly 1 to slide toward the first sliding member 221a along the direction indicated by the arrow at point a4. Simultaneously, this causes the rear end b3 of the second track 122E2 to slide toward the second sliding member 221b along the direction indicated by the arrow at b3. During this process, the first positioning assembly 1 simultaneously rotates and extends to the left. As shown in Figure 84, when the front end a4 of the first track 121E2 slides to the first sliding member 221a, the rear end b3 of the second track 122E2 slides to the second sliding member 221b. At this point, the first positioning assembly 1 extends from the left, placing the child safety seat in a leftward extended position. Therefore, this embodiment of the present application further enables the child safety seat to extend to the left while rotating, making it easier to carry a child in or out of a car through a left-side door, enhancing the user experience and satisfaction of the child safety seat. In one embodiment of the present application, as shown in Figure 84, corresponding to the state where the first positioning component 1 is extended to the left, the first sliding member 221a is arranged on the upper surface of the second positioning component 2, and the front end a4 of the first rail 121E2 is located at the position corresponding to the first sliding member 221a, and the second sliding member 221b is arranged on the upper surface of the second positioning component 2, and the rear end b3 of the second rail 122E2 is located at the position corresponding to the second sliding member 221b.

[0292] As shown in Figure 84 , the child safety seat continues to rotate, driving the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2. This causes the leftmost end a2 of the first track 121E2 on the first positioning assembly 1 to slide toward the first slider 221a along the direction indicated by the arrow at point a2. Simultaneously, this causes the center point b1 of the second track 122E2 to slide toward the second slider 221b along the direction indicated by the arrow at point b1. During this process, the first positioning assembly 1 rotates while gradually retracting to the center of the second positioning assembly 2. When the leftmost end a2 of the first track 121E1 slides to the first slider 221a, the center point b1 of the second track 122E1 slides to the second slider 221b. At this point, the first positioning assembly 1 faces forward and retracts to the center of the second positioning assembly 2, placing the child safety seat in a forward-facing seating mode, as shown in Figure 81 . Therefore, this embodiment of the present application further enables the child safety seat to be converted from a rearward-facing seating mode to a forward-facing seating mode, facilitating adjustment of the child's seating orientation and improving child safety in the child safety seat. At this point, the child safety seat has completed one rotation, achieving corresponding functions at each stage. The child safety seat can also be rotated in the opposite direction of the aforementioned rotation to achieve corresponding functions at each stage. The corresponding usage process and the effects achieved are the same as described above and will not be repeated in this application.

[0293] In yet another embodiment of the present application, as shown in FIG86 , a positioning assembly 100a includes a first positioning assembly 1 and a second positioning assembly 2. A first track 121E2 and a second track 122E2 are provided on the first positioning assembly 1. The position, shape, and structure of the first track 121E2 and the second track 122E2 are identical to those in the embodiments shown in FIG78 and FIG80 , and will not be described again herein.

[0294] In this embodiment, the second positioning assembly 2 is correspondingly provided with a first slider 221a and a second slider 221b. The positions of the first slider 221a and the second slider 221b on the second positioning assembly 2 correspond to the structure and position of the first track 121E1 and the second track 122E1 on the first positioning assembly 1. Specifically, as shown in Figures 85 and 86 , when the positioning assembly 100a is in the forward-facing riding mode, the first slider 221a is provided on the upper surface of the second positioning assembly 2, at a position corresponding to the rightmost end a3 of the first track 121E2; the second slider 221b is provided on the upper surface of the second positioning assembly 2, at a position corresponding to the center point b1 of the second track 122E2.

[0295] This embodiment will be described using the positioning assembly 100a shown in Figures 61 and 86 in the forward-facing riding mode as an example. As shown in Figure 86, when the positioning assembly 100a is in the forward-facing riding mode, the first slider 221a is disposed on the upper surface of the second positioning assembly 2, located at a position corresponding to the rightmost end a3 of the first track 121E2; the second slider 221b is disposed on the upper surface of the second positioning assembly 2, located at a position corresponding to the center point b1 of the second track 122E2. Rotating the child safety seat causes the first positioning assembly 100a to begin rotating relative to the second positioning assembly 2, causing the front end a4 of the first track 121E2 on the first positioning assembly 1 to slide toward the first slider 221a along the direction indicated by the arrow at point a4. Simultaneously, the rear end b3 of the second track 122E2 slides toward the second slider 221b along the direction indicated by the arrow at point b3. During this process, the first positioning assembly 1 rotates and extends to the right. As shown in Figure 87, when the front end a4 of the first rail 121E2 slides to the first slider 221a, the rear end b3 of the second rail 122E2 slides to the second slider 221b. At this point, the first positioning assembly 1 extends from the right side, placing the child safety seat in a rightwardly extended position. Therefore, this embodiment of the present application further allows the child safety seat to extend to the right while rotating, facilitating the transfer of children from the right side of the vehicle door, enhancing the user experience and satisfaction of the child safety seat. In one embodiment of the present application, as shown in Figure 87, corresponding to the rightwardly extended position of the first positioning assembly 1, the first slider 221a is disposed on the upper surface of the second positioning assembly 2, the front end a4 of the first rail 121E2 is located at a position corresponding to the first slider 221a, the second slider 221b is disposed on the upper surface of the second positioning assembly 2, and the rear end b3 of the second rail 122E2 is located at a position corresponding to the second slider 221b.

[0296] As shown in Figure 87 , the child safety seat continues to rotate, driving the first positioning assembly 1 of the positioning assembly 100a to begin rotating relative to the second positioning assembly 2. This causes the leftmost end a2 of the first track 121E2 on the first positioning assembly 1 to slide toward the first slider 221a along the direction indicated by the arrow at point a2. Simultaneously, this causes the center point b1 of the second track 122E2 to slide toward the second slider 221b along the direction indicated by the arrow at b1. During this process, the first positioning assembly 1 rotates while gradually retracting to the center of the second positioning assembly 2. When the leftmost end a2 of the first track 121E2 slides to the first slider 221a, the center point b1 of the second track 122E2 slides to the second slider 221b. At this point, the first positioning assembly 1 faces rearward and retracts to the center of the second positioning assembly 2, placing the child safety seat in rearward-facing seating mode, as shown in Figure 88 . Therefore, this embodiment of the present application further enables the child safety seat to be converted from forward-facing seating mode to rearward-facing seating mode, facilitating adjustment of the child's seating orientation and improving child safety.

[0297] As shown in Figure 88, the child safety seat continues to rotate, causing the first positioning assembly 1 of the positioning assembly 100a to begin rotating relative to the second positioning assembly 2. This causes the rearmost end a1 of the first track 121E2 on the first positioning assembly 1 to slide toward the first sliding member 221a along the direction indicated by the arrow at point a1. Simultaneously, the frontmost end b2 of the second track 122E1 slides toward the second sliding member 221b along the direction indicated by the arrow at point b2. During this process, the first positioning assembly 1 rotates while gradually extending from the left to the right. As shown in Figure 89, when the rearmost end a1 of the first track 121E2 slides to the first sliding member 221a, the frontmost end b2 of the second track 122E1 slides to the second sliding member 221b. At this point, the first positioning assembly 1 withdraws from the right side, causing the child safety seat to exit from the right side. This embodiment of the present application enables the child safety seat to be rotated and simultaneously withdrawn from the right side. This prevents the child safety seat from hitting the left door when rotated to the left for use when installed on the left side of the car seat. Furthermore, some space is reserved on the left side for the child to place their feet, thereby improving the user experience and satisfaction of the child safety seat. In one embodiment of the present application, as shown in FIG89 , corresponding to the state in which the first positioning assembly 1 is withdrawn to the right, the first sliding member 221a is disposed on the upper surface of the second positioning assembly 2, the rearmost end a1 of the first track 121E2 is located at a position corresponding to the first sliding member 221a, the second sliding member 221b is disposed on the upper surface of the second positioning assembly 2, and the frontmost end b2 of the second track 122E2 is located at a position corresponding to the second sliding member 221b.

[0298] As shown in Figure 89, the child safety seat continues to rotate, causing the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2, causing the rightmost end a3 of the first track 121E2 on the first positioning assembly 1 to slide along the direction indicated by the arrow at point a3 toward the first slider 221a. Simultaneously, this causes the center point b1 of the second track 122E2 to slide along the direction indicated by the arrow at point b1 toward the second slider 221b. During this process, the first positioning assembly 1 rotates and gradually retracts to the center of the second positioning assembly 2. As shown in Figure 86, when the rightmost end a3 of the first track 121E2 slides to the first slider 221a, the center point b1 of the second track 122E2 slides to the second slider 221b. At this point, the first positioning assembly 1 faces forward and retracts to the center of the second positioning assembly 2, placing the child safety seat in a forward-facing seating mode. Therefore, this embodiment of the present application further enables the child safety seat to be converted from a rearward-facing seating mode to a forward-facing seating mode, thereby facilitating adjustment of the child's seating orientation and improving the safety of the child in the child safety seat. At this point, the child safety seat has completed one rotation, achieving corresponding functions at each stage. The child safety seat can also be rotated in the opposite direction of the aforementioned rotation to achieve corresponding functions at each stage. The corresponding usage process and the effects achieved are the same as described above and will not be repeated in this application.

[0299] In another embodiment of the present application, as shown in Figures 90-92, a positioning assembly 100a includes a first positioning assembly 1 and a second positioning assembly 2. The first positioning assembly 1 is provided with a first track 121E2 and a second track 122E2, and the second positioning assembly 2 is provided with a first slider 221a and a second slider 221b. The first track 121E2 is an annular track, arranged around the center point O' of the first positioning assembly 1. The distance between the leftmost end a2 (located on the left side of the first positioning assembly 1) and the rightmost end a3 (located on the right side of the first positioning assembly 1) of the first track 121E2 is greater than the distance between the frontmost end a4 (located relatively in front of the first positioning assembly 1) and the rearmost end a1 (located relatively in the rear of the first positioning assembly 1) of the first track 121E2. The second track 122E2 is a straight track, extending from the center point O' of the first positioning component 1 along the center line y in the front-to-back direction, to the front and rear ends of the first track 121E2, respectively, to the front end b2 and the rear end b3 of the second track 122E2.

[0300] In this embodiment, the center point b1 of the second track 122E2 coincides with the center point O' of the first positioning assembly 1. In other embodiments, the second track 122E2 may extend forward and backward to the exterior of the first track 121E2, respectively, along a direction parallel to the center line y in the front-to-back direction of the first positioning assembly 1. In other words, the center point b1 of the second track 122E2 is offset from the center point O' of the first positioning assembly 1.

[0301] In some embodiments of the present application, the first track 121E2 is an elliptical track centered on the center O' of the first positioning assembly 1, and the line connecting the leftmost end a2 and the rightmost end a3 of the first track 121E2 is the major axis of the elliptical track; the second track 122E2 is a linear track located in the minor axis direction of the elliptical track and extending outward from the elliptical track.

[0302] In this embodiment, the second positioning assembly 2 is correspondingly provided with a first slider 221a and a second slider 221b. The positions of the first slider 221a and the second slider 221b on the second positioning assembly 2 correspond to the structure and position of the first track 121E2 and the second track 122E2 on the first positioning assembly 1. Specifically, as shown in Figures 91 and 93, the positions of the first slider 221a and the second slider 221b are as follows: corresponding to the positioning assembly 100a being in the forward riding mode, the second slider 221b is provided on the upper surface of the second positioning assembly 2, at the rearmost end b3 of the second track 122E2; and the first slider 221a is provided on the upper surface of the second positioning assembly 2, at a position corresponding to the frontmost end a4 of the first track 121E2 (i.e., the front intersection a4 of the first track 121E2 and the second track 122E2).

[0303] This embodiment will be described using the positioning assembly 100a shown in Figure 93 in the forward-facing riding mode as an example. As shown in Figure 93, when the positioning assembly 100a is in the forward-facing riding mode, the second slider 221b is disposed on the upper surface of the second positioning assembly 2, located at the rearmost end b3 of the second track 122E2. The first slider 221a is disposed on the upper surface of the second positioning assembly 2, located corresponding to the frontmost end a4 of the first track 121E2 (i.e., the front intersection a4 of the first and second tracks 121E2). Rotating the child safety seat causes the first positioning assembly 1 of the positioning assembly 100a to begin rotating relative to the second positioning assembly 2, causing the center point b1 of the second track 122E2 on the first positioning assembly 1 to slide toward the second slider 221b along the direction indicated by the arrow at point b1. Simultaneously, the leftmost end a2 of the first track 121E2 slides toward the first slider 221a along the direction indicated by the arrow at point a2. During this process, the first positioning assembly 1 rotates while facing rightward and gradually extending rearward. As shown in Figure 94, when the center point b1 of the second track 122E2 slides to the second slider 221b, the leftmost end a2 of the first track 121E2 slides to the first slider 221a. At this point, the first positioning assembly 1 extends toward the right and rearward, placing the child safety seat in a position that faces and extends toward the right and rearward. This embodiment of the present application allows the child safety seat to rotate while facing right and extending from the rear. Therefore, this embodiment of the present application allows for flexible adjustment of the child's seating position, improving the child's comfort in the child safety seat. It also facilitates carrying a child in or out of the vehicle from the right, both inside and outside the vehicle, enhancing the user experience and satisfaction of the child safety seat.

[0304] As shown in Figure 94, continued rotation of the child safety seat causes the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2, causing the front end b2 of the second track 122E2 on the first positioning assembly 1 to slide toward the second slider 221b along the direction indicated by the arrow at point b2. Simultaneously, this causes the rear end a1 of the first track 121E2 to slide toward the first slider 221a along the direction indicated by the arrow at point a1. During this process, the first positioning assembly 1 gradually retracts toward the center of the second positioning assembly 2 while rotating. As shown in Figure 95, when the front end b2 of the second track 122E2 slides to the second slider 221b and the rear end a1 of the first track 121E2 slides to the first slider 221a, the first positioning assembly 1 faces rearward and retracts to the center of the second positioning assembly 2, placing the child safety seat in rearward-facing seating mode. Therefore, this embodiment of the present application further enables the child safety seat to be converted from forward-facing seating mode to rearward-facing seating mode, facilitating adjustment of the child's seating orientation and improving child safety in the child safety seat.

[0305] As shown in Figure 95, the child safety seat continues to rotate, causing the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2. This causes the center point b1 of the second track 122E2 on the first positioning assembly 1 to slide toward the second sliding member 221b along the direction indicated by the arrow at point b1. Simultaneously, this causes the rightmost end a3 of the first track 121E2 to slide toward the first sliding member 221a along the arrow at a3. During this process, the first positioning assembly 1 rotates and extends rearward. As shown in Figure 96, when the center point b1 of the second track 122E2 slides to the second sliding member 221b and the rightmost end a3 of the first track 121E2 slides to the first sliding member 221a, the first positioning assembly 1 extends from the rear, causing the child safety seat to extend rearward and to the left. Therefore, this embodiment of the present application can realize that the child safety seat rotates while facing to the left and extending from the rear side. Therefore, the embodiment of the present application can realize flexible adjustment of the child's sitting position, improve the comfort of the child sitting in the child safety seat, and also make it easier to carry the child in or out from the left side inside or outside the car, thereby improving the user experience and satisfaction of the child safety seat.

[0306] As shown in Figure 96, continued rotation of the child safety seat causes the first positioning assembly 1 of the positioning assembly to begin rotating relative to the second positioning assembly 2, causing the rearmost end b3 of the second track 122E2 on the first positioning assembly 1 to slide along the direction indicated by the arrow at point b3 toward the second sliding member 221b. Simultaneously, this causes the frontmost end a4 of the first track 121E2 to slide along the direction indicated by the arrow at point a4 toward the first sliding member 221a. During this process, the first positioning assembly 1 rotates and gradually retracts to the center of the second positioning assembly 2. As shown in Figure 93, when the rearmost end b3 of the second track 122E2 slides to the second sliding member 221b and the frontmost end a4 of the first track 121E2 slides to the first sliding member 221a, the first positioning assembly 1 faces forward and retracts to the center of the second positioning assembly 2, placing the child safety seat in a forward-facing seating mode. Therefore, this embodiment of the present application further enables the child safety seat to be converted from a rearward-facing seating mode to a forward-facing seating mode, facilitating adjustment of the child's seating orientation and improving child safety. The child safety seat can also be rotated in the opposite direction of the above-mentioned rotation direction to achieve the corresponding functions in each stage. The corresponding usage process and the effects that can be achieved are the same as those described above, and this application will not repeat the description.

[0307] In another embodiment of the present application, it is basically the same as the embodiments shown in Figures 91 and 93 above, except that, as shown in Figures 97 and 98, only when the positioning assembly 100a is in the forward riding mode, the setting positions of the first sliding member 221a and the second sliding member 221b are as follows: the second sliding member 221b is set on the upper surface of the second positioning assembly 2, at the front end b2 of the second track 122E2; the first sliding member 221a is set on the upper surface of the second positioning assembly 2, at a position corresponding to the rear end a1 of the first track 121E2 (that is, the rear intersection a1 of the first track 121E2 and the second track 122E2). The working process of the positioning assembly 100a of this embodiment is basically the same as the above process and will not be described in detail here. The difference from the above process is that, in the above working process, first, the child safety seat can be placed in a state where the child safety seat is facing the right and extended forward; then the child safety seat can be retracted to the center point position b1 of the second track 122E2 to be in the rear-facing riding mode; then the child safety seat can be placed in a state where it faces the left and is extended from the front; finally, the child safety seat can be placed in a state where the seat faces the front and is retracted from the front to the center point position b1 of the second track 122E2, that is, it returns to the original forward-facing riding mode.

[0308] The seventh aspect of the present application provides a positioning assembly 100b. As shown in Figures 99-100 and Figure 103, the positioning assembly 100b includes: a first positioning assembly 10 and a second positioning assembly 20. The positioning assembly 100b also includes a connecting rod 40, one end of which is pivotally connected to the first positioning assembly 10, and the other end of which is pivotally connected to the second positioning assembly 20. The connecting rod 40 is configured to enable the first positioning assembly 10 to move vertically and / or horizontally relative to the second positioning assembly 20. The vertical direction refers to a direction perpendicular to the upper surface of the second positioning element 20, and can be, for example, the upward or downward direction described below, and the horizontal direction can be the front, back, left, or right direction described in this disclosure. The positioning assembly 100a of the present application includes a first positioning assembly 10, a second positioning assembly 20 and a connecting rod 40. One end of the connecting rod 40 is pivotally connected to the first positioning assembly 10, and the other end of the connecting rod 40 is pivotally connected to the second positioning assembly 20, thereby realizing a pivotal connection between the first positioning assembly 10 and the second positioning assembly 20, thereby enabling the first positioning assembly 10 to move vertically and / or horizontally relative to the second positioning assembly 20.

[0309] Furthermore, the positioning assembly 100b also includes a third positioning assembly 30, which is stationary. Furthermore, the second positioning assembly 20 is rotatably mounted above the third positioning assembly 30 and located between the first positioning assembly 10 and the third positioning assembly 20. In the positioning assembly 100b of the present application, the first positioning assembly 10 is pivotally mounted above the second positioning assembly 20, thereby enabling simultaneous upward and lateral movement of the first positioning assembly 10 relative to the second positioning assembly 20. During actual use of the positioning assembly 100b of the present application, the positioning assembly 100b is mounted on a car seat and securely attached to the car floor via support legs 300. The child safety seat 200 is removably or fixedly mounted on the first positioning assembly 10. By rotating the child safety seat 200, the connected first and second positioning assemblies 10, 20 can rotate relative to the third positioning assembly 30. When the child safety seat 200 is facing one side of the car seat, the first positioning assembly 10 can extend toward the side of the car seat relative to the second positioning assembly 20, driving the child safety seat 200 to extend toward the side of the car seat. This allows the child safety seat 200 to be closer to the car door, making it easier to carry a child in or out, and improving the user experience and satisfaction of the child safety seat.

[0310] In some embodiments of the present application, the positioning assembly 100b includes a locking member, which is configured to lock or release the first positioning assembly 10 and the second positioning assembly 20, so that during normal use of the child safety seat 200, the first positioning assembly 10 and the second positioning assembly 20 are locked together. When the child safety seat 200 needs to be extended from one side of the car seat, the first positioning assembly 10 and the second positioning assembly 20 can be unlocked, so that the first positioning assembly 10 can move toward the side of the car seat relative to the second positioning assembly 20.

[0311] In one embodiment of the present application, as shown in Figures 101 and 102, the locking member includes a locking hook 1022 and a locking hole 207. The locking hole 207 is provided on the second positioning assembly 20, and the locking hook 1022 is provided on the first positioning assembly 10. Furthermore, the locking hook 1022 includes a free end 10221 and a locking end 10222. The locking end 10222 is configured to engage with the locking hole 207 or release from the locking hole 207. With the provision of the locking hook 1022, the locking end 10222 of the locking hook 1022 can engage with the locking hole 207, thereby locking the first positioning assembly 10 and the second positioning assembly 20. The locking end 10222 of the locking hook 1022 can also release from the locking hole 207, thereby releasing the first positioning assembly 10 from the second positioning assembly 20.

[0312] In one embodiment of the present application, as shown in FIG101 , the first positioning assembly 10 includes an upper body 101 and a lower body 102, which are fixedly connected. A first pivot shaft 1021 is provided on the lower body 102. One end of the first pivot shaft 1021 is fixedly connected to the lower body 102, and the other end of the first pivot shaft 1021 is pivotally connected to the portion between the free end 10221 and the locking end 10222 of the locking hook 1022. Furthermore, the locking hook 1022 is configured to pivot about the first pivot shaft 1021. With such a configuration, by controlling the position of the free end 10221 of the locking hook 1022, the locking end 10222 of the locking hook 1022 can be driven to engage with the locking hole 207, thereby locking the first positioning component 10 and the second positioning component 20, and the locking end 10222 of the locking hook 1022 can also be released from the locking hole 207, thereby releasing the first positioning component 10 from the second positioning component 20.

[0313] In one embodiment of the present application, as shown in Figures 101 and 102 , a button 1011 is provided on the upper body 101. The button 1011 is positioned near the free end 10221 of the locking hook 1022. Pressing the button pushes the free end 10221 of the locking hook 1022 to rotate about the first pivot axis 1021. This configuration allows the locking end 10222 to pivot to a released position, disengaging from the second positioning assembly 20. A first elastic member 1025 is sleeved on the first pivot axis 1021. The first elastic member 1025 is configured to pivot the locking end 10222 of the locking hook 1022 toward the locked position. Specifically, the first elastic member 1025 causes the locking end 10222 of the locking hook 1022 to press against the side wall of the locking hole 207 in the direction in which the button 1011 pushes the free end 10221. In one embodiment of the present application, the locking hole 207 is a through hole, as shown in Figure 101 . During normal use of the child safety seat 200, the locking end 10222 of the locking hook 1022 passes through the locking hole 207. Under the action of the first elastic member 1025, the locking end 10222 of the locking hook 1022 engages with the bottom lower surface of the second positioning assembly 20, thereby locking the first positioning assembly 10 and the second positioning assembly 20. When the child safety seat 200 needs to be extended from one side of the car seat, as shown in FIG102, the button 1011 is pressed. The button 1011 pushes the free end 10221 of the locking hook 1022, causing the free end 10221 to rotate about the first pivot axis 1021. This overcomes the elastic force applied to the locking end 10222 by the first elastic member 1025, causing the locking end 10222 to rotate and move away from the pressing position on the bottom lower surface of the second positioning assembly 20, so that the locking end 10222 can be subsequently retracted from the locking hole 207, releasing the first positioning assembly 10 and the second positioning assembly 20. In some embodiments, the first elastic member 1025 can be a torsion spring, which is sleeved on the first pivot shaft 1021, with one end abutting against the lower seat 102 and the other end abutting against the locking hook 1022, but is not limited thereto.

[0314] In one embodiment of the present application, as shown in FIG106 , during the process of locking the first positioning assembly 10 to the second positioning assembly 20, to facilitate the engagement of the locking end 10222 of the locking hook 1022 with the locking hole 207, a side surface 10223 of the locking end 10222 of the locking hook 1022 is formed as an inclined surface. This side surface 10223 of the locking end 10222 is the side surface where the locking end 10221 presses against the side wall of the locking hole 207 under the action of the first elastic member 1025. When the child safety seat connected to the first positioning assembly 10 is pressed downward, the inclined surface 10223 abuts against the side wall of the locking hole 207, guiding the locking end 10222 of the locking hook 1022 into the locking hole 207 for engagement with the lower surface of the second positioning assembly 20, thereby reengaging the first positioning assembly 10 with the second positioning assembly 20.

[0315] In some embodiments of the present application, two support rods 201 are fixedly mounted on the second positioning assembly 20. A limiting rod 203 is disposed between the two support rods 201, with both ends of the limiting rod 203 fixedly connected to the two support rods 201. When the locking end 10222 is released from the locking hole 207, the limiting rod 203 restricts the locking hook 1022 from being positioned. Alternatively, a limiting groove 1024 is defined on the lower surface of the first positioning assembly 10. When the first positioning assembly 10 is locked to the second positioning assembly 20, the locking end 10222 of the locking hook 1022 engages with the locking hole 207, and the limiting rod 203 snaps into the limiting groove 1024. In some embodiments of the present application, a pivot hole may be provided on one of the first end of the connecting rod 40 and the first positioning assembly 10, and a pivot shaft may be provided on the other of the first end of the connecting rod 40 and the first positioning assembly 10. A pivot hole may be provided on the second end of the connecting rod 40 and one of the second positioning assembly 20, and a pivot shaft may be provided on the second end of the connecting rod 40 and the second positioning assembly 20. Alternatively, pivot holes may be provided on both the first end of the connecting rod 40 and the first positioning assembly 10, with one pivot shaft being provided through the pivot holes of the first end of the connecting rod 40 and the first positioning assembly 10. A pivot hole may also be provided on both the second end of the connecting rod 40 and the second positioning assembly 20, with another pivot shaft being provided through the pivot holes of the second end of the connecting rod 40 and the second positioning assembly 20. Furthermore, in one embodiment of the present application, as shown in FIG103 , the first end of the connecting rod 40 has a first pivot hole 401, and the second end of the connecting rod 40 has a second pivot hole 402. As shown in FIG104 , the first positioning assembly 10 is correspondingly provided with a third pivot shaft 1023, which is pivotally connected to the first pivot hole 401. Referring to FIG103 , the second positioning assembly 20 is fixedly provided with a second pivot shaft 206, which is pivotally connected to the second pivot hole 402. Preferably, the second positioning assembly 20 is fixedly provided with a support rod 201, with the second pivot shaft 206 disposed on the support rod 201. This arrangement enables a pivotal connection between the first positioning assembly 10 and the second positioning assembly 20 via the connecting rod 40. As shown in FIG104 , the connecting rod 40 can pivot relative to the support rod 201 in the direction w indicated by the arrow in the figure, driving the first positioning assembly 10 downward and sideways, allowing the first positioning assembly 10 to move vertically and / or horizontally relative to the second positioning assembly 20, thereby achieving upward lifting and lateral movement of the first positioning assembly 10.

[0316] Furthermore, in one embodiment of the present application, as shown in FIG103 , a second elastic member 205 is sleeved on the second pivot shaft 206 . The second elastic member 205 is configured to drive the connecting rod 40 to push the first positioning assembly 10 upward. Specifically, as shown in FIG102 and FIG106 , when the locking end 10222 of the locking hook 1022 is unlocked from the locking hole 207 , the connecting rod 40 pushes the first positioning assembly 10 under the action of the rebound force of the second elastic member 205 , causing the first positioning assembly 10 to lift upward, and driving the locking hook 1022 to move upward, driving the locking end 10222 to withdraw from the locking hole 207, thereby releasing the first positioning assembly 10 and the second positioning assembly 20.

[0317] In one embodiment of the present application, as shown in Figures 103 and 104, there are four connecting rods 40. There are two support rods 201, each of which is fixedly mounted on the second positioning assembly 20 at both ends. Each support rod 201 is provided with two second pivot shafts 206, one end of each second pivot shaft 206 being fixedly connected to the support rod 201, and the other end of each second pivot shaft 206 being pivotally connected to the second pivot hole 402 of the corresponding connecting rod 40. Of course, the present application is not limited to this. In some embodiments not shown, the number of connecting rods 40 may also be 2, 3, 5, or 6, as long as the pivotal connection between the first positioning assembly 10 and the second positioning assembly 20 is ensured and stable support for the first positioning assembly 10 is achieved.

[0318] To enable the second elastic member 205 to push the first positioning assembly 10 upward after the first and second positioning assemblies 10 and 20 are released, in one embodiment of the present application, as shown in FIG103 , each support rod 201 is provided with two fixing protrusions 204, and each connecting rod 40 also has a fixing hole 403. One end of each second elastic member 205 is fixedly connected to a corresponding fixing protrusion 204, and the other end of each second elastic member 205 is fixedly connected to a fixing hole 403 of the corresponding connecting rod 40. Providing the fixing protrusions 204 on the support rod 201 provides fixed support for the second elastic member 205 and enables the second elastic member 205 to push the first positioning assembly 10 upward after the first and second positioning assemblies 10 and 20 are released.

[0319] In one embodiment of the present application, a limiting rod 203 is disposed between the two support rods 201, with both ends of the limiting rod 203 fixedly connected to the two support rods 201. As shown in Figures 106-108, after the first positioning assembly 10 is released from the second positioning assembly 20, the locking end 10222 of the locking hook 1022 exits the locking hole 207. This is to prevent the locking end 10222 from pivoting counterclockwise along the first pivot axis 1021 to the lower surface of the lower base 102 under the action of the first elastic member 1025 after the button 1011 is released, thereby preventing the locking end 10222 of the locking hook 1022 from passing through the locking hole 207 to lock the first positioning assembly 10 to the second positioning assembly 20 the next time the first positioning assembly 10 and the second positioning assembly 20 need to be locked. In the embodiment of the present application, a limit rod 203 is provided on the two support rods 201. The limit rod 203 is configured to limit the excessive pivoting of the locking end 10222 of the locking hook 1022 caused by the force of the first elastic member 1025 when the locking end 10222 is not engaged with the locking hole. In other words, the limit rod 203 can enable the locking end 10222 of the locking hook 1022 to remain in a position when it is not locked with the locking hole 207. When it is necessary to lock the first positioning component 10 and the second positioning component 20, the locking end 10222 of the locking hook 1022 can be smoothly engaged with the locking hole 207, thereby further locking the first positioning component 10 and the second positioning component 20.

[0320] The positioning assembly 100b of the present application will be described using the positioning assembly 100b in the forward-facing riding mode shown in FIG110 as an example. As shown in FIG101-102 and FIG110, the positioning assembly 100b is in the forward-facing riding mode (as shown in FIG110), and the child safety seat 200 is mounted on the first positioning assembly 10 of the positioning assembly 100b. The first positioning assembly 10 and the second positioning assembly 20 are locked together. When the child needs to be removed from the vehicle door, the child safety seat 200 is rotated, so that the locked first and second positioning assemblies 10 and 20 rotate toward the vehicle door (as shown in FIG101). Pressing the button 1011 pushes the free end 10221 of the locking hook 1022, causing it to rotate about the first pivot axis 1021. The pivoting of the free end 10221 causes the locking end 10222 to pivot to the release position, disengaging from the locking hole 207, and releasing the first positioning assembly 10 from the second positioning assembly 20. At this point, under the resilient force of the second elastic member 205, the connecting rod 40 pivots relative to the second positioning assembly 20 about the second pivot axis 206, simultaneously pushing the first positioning assembly 10, causing the first positioning assembly 10 to lift upward, driving the locking hook 1022 upward, and causing the locking end 10222 to exit the locking hole 207 (as shown in Figure 106). Under the elastic force of the second elastic member 205, the first positioning assembly 10 is pushed toward the vehicle door, thereby pushing the child safety seat 200 toward the vehicle door. Alternatively, the child safety seat 200 can be pushed toward the vehicle door. The first positioning assembly 10, driven by the child safety seat 200, drives the connecting rod 40 to pivot toward the vehicle door. The pivoting motion of the connecting rod 40 causes the child safety seat 200 mounted on the first positioning assembly 10 to gradually descend and extend toward the vehicle door, thereby pushing the child safety seat 200 toward the vehicle door. After use, the child safety seat 200 can be pushed from the side of the vehicle door toward the center of the vehicle seat. Pushed by the child safety seat 200, the first positioning assembly 10 drives the connecting rod 40 to pivot toward the center of the vehicle seat. The pivoting motion of the connecting rod 40 gradually elevates the child safety seat 200 mounted on the first positioning assembly 10 and brings it closer to the center of the vehicle seat. Once the child safety seat 200 reaches the center of the vehicle seat, the child safety seat 200 is pressed downward, causing the locking end 10222 of the locking hook 1022 on the first positioning assembly 10 to move downward until it engages with the locking hole 207. The first positioning assembly 10 is then locked to the second positioning assembly 20. Finally, the child safety seat 200 is rotated, causing the first and second positioning assemblies 10, 20, to rotate relative to the third positioning assembly 30 to either the forward-facing or rear-facing seating position.

[0321] In some embodiments of the present application, when the child safety seat 200 is facing one side of the car seat, in order to enable the first positioning assembly 10 to extend from one side of the second positioning assembly 20, the length of the connecting rod 40 is set to be at least greater than or equal to the required extension length of the first positioning assembly 10. After the first positioning assembly 10 is released from the second positioning assembly 20, the child safety seat can be pushed to the left or right, causing the connecting rod 40 to gradually descend and extend to the left or right, thereby pushing the child safety seat to the left or right.

[0322] To reduce the length of the connecting rod 40, ensuring that the first positioning assembly 10 takes up as little space as possible after being released from the second positioning assembly 20 and that the first positioning assembly 10 can extend sufficiently from one side of the second positioning assembly 20, in one embodiment of the present application, as shown in Figures 103 and 104 , the second positioning assembly 20 is provided with a support rod 201. The support rod 201 is further provided with a sliding portion 202 that slides along the support rod 201 and is spaced apart from the bottom of the second positioning assembly 20. One end of the connecting rod 40 is pivotally connected to the first positioning assembly 10, and the other end of the connecting rod 40 is pivotally connected to the sliding portion 202. Specifically, a second pivot shaft 206 is provided on the sliding portion 202, and the other end of the connecting rod 40 is pivotally connected to the sliding portion 202 via the pivot shaft 206. Alternatively, the second pivot shaft 206 may be provided at the other end of the connecting rod 40, without limitation. As shown in Figure 102, after the first positioning assembly 10 is released from the second positioning assembly 20, it can move vertically relative to the second positioning assembly 20, or be vertically ejected. At this point, the first positioning assembly 10 can move along the support rod 201 with the sliding portion 202, which is mounted on the support rod 201. As shown in Figures 104 and 107, the first positioning assembly 10 is connected to the sliding portion 202 via a connecting rod 40 and can move along the support rod 201 on the second positioning assembly 20 toward one side of the car seat. Furthermore, the provision of the sliding portion 202 can reduce the resistance encountered when the first positioning assembly 10 is pushed out from one side, making it easier to push the child safety seat out from one side.

[0323] In one embodiment of the present application, as shown in Figures 103 and 104, there are four connecting rods 40; two support rods 201, each of which is fixedly attached to the second positioning assembly 20 at both ends; and two sliding portions 202. Each sliding portion 202 is provided with two second pivot shafts 206; one end of each second pivot shaft 206 is fixedly connected to the sliding portion 202, and the other end of each second pivot shaft 206 is pivotally connected to the second pivot hole 402 of the corresponding connecting rod 40. This arrangement ensures that the first positioning assembly 10, via the connecting rod 40 and the sliding portion 202, can move smoothly along the support rod 201 on the second positioning assembly 20 toward one side of the car seat. It should be understood that the specific number of connecting rods 40, support rods 201, and sliding portions 202 is not limited in this application; as long as the first positioning assembly 10, via the connecting rod 40 and the sliding portion 202, can move and extend along the support rod 201 on the second positioning assembly 20 toward one side of the car seat, is sufficient.

[0324] In one embodiment of the present application, as shown in Figures 103 and 104 , each sliding portion 202 is provided with two fixing protrusions 204, and each connecting rod 40 also has a fixing hole 403. One end of each second elastic member 205 is fixedly connected to a corresponding fixing protrusion 204, while the other end of each second elastic member 205 is fixedly connected to a fixing hole 403 of the corresponding connecting rod 40. This arrangement, by providing the fixing protrusions 204 on the sliding portion 202, provides fixed support for the second elastic member 205. After the first positioning assembly 10 is released from the second positioning assembly 20, the second elastic member 205 can lift the first positioning assembly 10 upward, as shown in Figure 105 . Furthermore, the first positioning assembly 10 can be moved along the support rod 201 toward the side of the car seat via the connecting rod 40, along with the sliding portion 202.

[0325] In another embodiment, as shown in FIG103, a sliding portion 202 is respectively sleeved on the two support rods 201. Furthermore, a limiting rod 203 is provided between the two sliding portions 202, and the two ends of the limiting rod 203 are respectively fixedly connected to the two sliding portions 202. As shown in FIG106-108, after the first positioning assembly 10 is released from the second positioning assembly 20, the locking end 10222 of the locking hook 1022 withdraws from the locking hole 207. In order to prevent the locking end 10222 from pivoting counterclockwise along the first pivot axis 1021 to the lower surface of the lower seat 102 under the action of the first elastic member 1025 after the button 1011 is released, thereby causing the locking end 10222 of the locking hook 1022 to be unable to engage with the locking hole 207 to lock the first positioning assembly 10 to the second positioning assembly 20 when the first positioning assembly 10 and the second positioning assembly 20 need to be locked next time, the present application In the embodiment, a limiting rod 203 is provided on the two sliding parts 202, and the limiting rod 203 is configured to limit the excessive pivoting of the locking end 10222 of the locking hook 1022 caused by the force of the first elastic member 1025 when the locking end 10222 is not engaged with the locking hole. In other words, the limiting rod 203 can enable the locking end 10222 of the locking hook 1022 to remain in a position when it is not locked with the locking hole 207. When it is necessary to lock the first positioning component 10 and the second positioning component 20, the locking end 10222 of the locking hook 1022 can smoothly pass through the locking hole 207, thereby further locking the first positioning component 10 and the second positioning component 20.

[0326] Furthermore, in one embodiment of the present application, after the first positioning assembly 10 is locked onto the second positioning assembly 20, to prevent the first positioning assembly 10 from sliding laterally relative to the second positioning assembly 20, as shown in Figures 101 and 102, a limiting groove 1024 is defined on the lower surface of the lower base 102. When the first positioning assembly 10 is locked onto the second positioning assembly 20, the locking end 10222 of the locking hook 1022 engages with the locking hole 207, and the limiting rod 203 snaps into the limiting groove. As shown in Figure 101, after the locking end 10222 of the locking hook 1022 passes through the locking hole 207, under the action of the first elastic member 1025, the locking end 10222 of the locking hook 1022 presses against the bottom surface of the second positioning assembly 20, thereby locking the first positioning assembly 10 and the second positioning assembly 20. At the same time, the limiting rod 203 disposed between the two support rods 201 or between the two sliding portions 202 engages with the limiting groove 1024, thereby preventing the first positioning assembly 10 from sliding laterally relative to the second positioning assembly 20 and effectively locking the first positioning assembly 10 relative to the second positioning assembly 20. When the child safety seat 200 needs to be extended from one side of the car seat, as shown in Figures 106-108, the button 1011 is pressed, which pushes the locking hook 1022 to pivot. Under the rebound force of the second elastic member 205, the connecting rod 40 pivots and pushes the first positioning assembly 10 upward, simultaneously moving the locking hook 1022 upward and retracting it from the locking hole 207. As the first positioning assembly 10 is pushed upward, the limiting groove 1024 moves upward, releasing the limit on the limiting rod 203. Continuing to push the child safety seat 200 to the side, the first positioning assembly 10 can move to the side relative to the second positioning assembly 20. The present application does not impose any restrictions on the shape of the limiting groove 1024, as long as when the first positioning component 10 is locked on the second positioning component 20, the limiting groove 1024 can clamp the limiting rod 203 and prevent the first positioning component 10 from sliding sideways relative to the second positioning component 20.

[0327] The positioning assembly 100b of this application will be described using the example of the positioning assembly 100b in the forward-facing riding mode shown in FIG110 . With the positioning assembly 100b in the forward-facing riding mode (as shown in FIG110 ), the child safety seat 200 is mounted on the first positioning assembly 10 of the positioning assembly 100b, with the first positioning assembly 10 and the second positioning assembly 20 locked together. When the child needs to be removed from the vehicle door, the child safety seat 200 is rotated, causing the locked first and second positioning assemblies 10 and 20 to rotate toward the vehicle door (as shown in FIG101 ). Pressing the button 1011 pushes the free end 10221 of the locking hook 1022, causing it to rotate about the first pivot axis 1021. The pivoting of the free end 10221 causes the locking end 10222 to pivot to the release position, disengaging from the release hole 207, and releasing the first positioning assembly 10 from the second positioning assembly 20. At this point, under the resilient force of the second elastic member 205 provided on the push rod 40, the connecting rod 40 pushes the first positioning assembly 10, causing the first positioning assembly 10 to lift upward, driving the locking hook 1022 to move upward, and causing the locking end 10222 to withdraw from the locking hole 207 (as shown in Figures 105-106). The child safety seat 200 is pushed toward the vehicle door. Under the push of the child safety seat 200, the first positioning assembly 10 drives the connecting rod 40 to pivot toward the vehicle door. The pivoting movement of the connecting rod 40 causes the child safety seat 200 mounted on the first positioning assembly 10 to gradually descend and extend toward the vehicle door. At the same time, it drives the sliding portion 202 to slide on the support rod 201 toward the vehicle door, thereby pushing the child safety seat 200 toward the vehicle door and ensuring that the child safety seat 200 can be pushed out a sufficient distance from the vehicle door (as shown in Figures 107-108). After use, the child safety seat 200 can be pushed from the side of the vehicle door toward the center of the car seat. Pushed by the child safety seat 200, the first positioning assembly 10 causes the sliding portion 202 to slide along the support rod 201 toward the center of the seat, while simultaneously driving the connecting rod 40 to pivot toward the center of the car seat. The pivoting motion of the connecting rod 40 and the sliding motion of the sliding portion 202 cause the child safety seat 200, mounted on the first positioning assembly 10, to gradually rise and approach the center of the car seat. Once the child safety seat 200 reaches the center of the car seat, the rebound force of the second elastic member 205 is overcome, pushing the child safety seat 200 downward. The locking end 10222 of the locking hook 1022 on the first positioning assembly 10 moves downward until it engages with the locking hole 207, locking the first positioning assembly 10 to the second positioning assembly 20 (as shown in FIG. 101 ).Finally, the child safety seat 200 is rotated so that the child safety seat 200 drives the first positioning assembly 10 and the second positioning assembly 20 together, relative to the third positioning assembly 30, to rotate to a forward-facing seating mode (as shown in FIG. 110 ) or a rearward-facing seating mode (as shown in FIG. 109 ).

[0328] This application also provides a child restraint system for installation on a vehicle seat. As shown in Figures 109-115 , the child restraint system includes a child safety seat 200 or a child carrier 400, and a positioning assembly 100a or 100b according to any of the above-described embodiments. The child safety seat 200 or child carrier 400 is detachably mounted on the positioning assembly 100a or 100b. During actual use of this application, the child restraint system is installed on a vehicle seat. The child safety seat 200 or child carrier 400 is detachably or fixedly mounted on the positioning assembly 100a or 100b. By rotating the child safety seat 200 or the child carrier 400, the child safety seat 200 or the child carrier 400 rotates and moves to a lateral position along with the first positioning assembly 1 or 10 in the positioning assembly 100a or 100b. The child safety seat 200 or the child carrier 400 is in a sideways extended state, thereby placing the child safety seat 200 or the child carrier 400 closer to the vehicle door, making it easier to carry a child in or out, and improving the user experience and satisfaction of the child restraint system.

[0329] In one embodiment of the child restraint system of the present application, the upper surface of the first positioning assembly 1 or 10 in the positioning assembly 100a or 100b is provided with at least one engaging mechanism 111, and the child safety seat 200 or child carrier 400 is configured to engage or disengage with the at least one engaging mechanism 111.

[0330] In one embodiment of the child restraint system of the present application, the child restraint system further comprises a support leg 300. The positioning assembly 100a or 100b further comprises a third positioning assembly 3 or 30. The second positioning assembly 2 or 20 is fixedly mounted on the third positioning assembly 3 or 30 and positioned between the first positioning assembly 1 or 10 and the third positioning assembly 3 or 30; alternatively, the second positioning assembly 2 or 20 is rotatably mounted on the third positioning assembly 3 or 30 and positioned between the first positioning assembly 2 or 20 and the third positioning assembly 3 or 30. One end of the support leg 300 is fixedly connected to the third positioning assembly 3 or 30 of the positioning assembly 100a or 100b, and the other end of the support leg 300 is configured to press against the vehicle floor. The child restraint system of the present application securely attaches the positioning assembly 100a or 100b to the vehicle floor via the support leg 300, thereby enhancing the stability and safety of the child restraint system.

[0331] The term "about" is intended to include the degree of error associated with measuring a particular quantity based on the equipment available at the time of filing this disclosure. As used herein, the term "substantially" and its derivatives and words of similar meaning, when used to describe a size, shape, orientation, distance, spatial relationship or other parameter, include the stated size, shape, orientation, distance, spatial relationship or other parameter, and may also include ranges of up to 10% higher and up to 10% lower than the stated parameter, including 5% higher and 5% lower, including 3% higher and 3% lower, including 1% higher and 1% lower.

[0332] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the present disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that, when used in this specification, the term "comprising" specifies the presence of a recited feature, integer, step, operation, component, and / or part, but does not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, and / or groups thereof. The directional terms "front," "back," "left," "right," "front," "back," "left," "right," and directions F1, F2, F3, and F4, etc., used herein, are intended solely to describe the relative positions and / or relative orientations of various components and do not constitute limitations on the scope of this application.

[0333] The terms "first," "second," "third," "fourth," "fifth," "sixth," and "seventh" used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connect," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the embodiments of the invention based on the specific circumstances.

[0334] Although the present disclosure has been described with reference to one or more exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present disclosure. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from the basic scope thereof. Therefore, it is intended that the present disclosure not be limited to the particular embodiments disclosed as the best mode contemplated for use herein, but that the present disclosure will include all embodiments falling within the scope of the claims.

[0335] 1: First positioning component 10: First positioning component 100a: Positioning component 100b: Positioning component 101: Upper seat 1011: Button 102: Lower body 1021: First pivot axis 1022: Locking hook 10221: Free end 10222: Locking end 1023: Third pivot axis 1024: Limit slot 1025: first elastic member 11: Upper seat 111: snap-fit mechanism 12: Lower body 121a: first sliding member 121b: Second sliding member 122a: First bearing 122b: Second bearing 2: Second positioning component 20: Second positioning component 200:Child safety seat 201:Support rod 202: Sliding part 203:Limiting rod 204: Fixed convex 205: second elastic member 206: Second pivot axis 207: Locking hole 21E1, 21E2, 21E1', 21E2', 21E3, 21E4, 21E5, 21E6, 21E8, 21E7: First track 221a: first sliding member 221b: Second sliding member 22E1, 22E2, 22E1', 22E2', 22E3, 22E4, 22E5, 22E6, 22E8, 22E7: Second track 23: The Third Track 3: The third positioning component 30: The third positioning component 300: Support Leg 31: Bracket 40: Connecting rod 400:Children's basket 401: first pivot hole 402: Second pivot hole 403:Fixing hole 4a: First limit hook 4b: Second limit hook 4b1: Lower end a1: front intersection, front end a 1: the last end A1: Intersection A1: The end A2: Intersection, rightmost end A2: rightmost end, right intersection a2: leftmost A3: Left intersection A3: Left intersection, intersection, leftmost end a3: rear intersection, rearmost end a3: far right a4: far right a4: the front end A4: Intersection, front end A4: front end B1, B1: center point b1, b1: center point b2: the front end b2: the last end B2, B2: far left B3, B3: rightmost end b3: the front end b3: the end F1, F2, F3, F4: Direction O: Center point O': Center point Y: Centerline y: center line

Claims

1. A positioning component, comprising a first positioning component and a second positioning component; a first track is disposed on one of the first positioning component and the second positioning component, and a first slider is disposed on the other of the first positioning component and the second positioning component, the first slider being slidable along the first track; a second track is disposed on one of the first positioning component and the second positioning component, and a second slider is disposed on the other of the first positioning component and the second positioning component, the second slider being slidable along the second track; the first track and the second track are configured such that while the first slider slides along the first track, the second slider is also slidable along the second track; the first positioning component is configured to rotate and move relative to the second positioning component along the first track and the second track; the first track is an arc track or a circular track, and the second track is a straight track.

2. The positioning component according to request item 1, wherein: The first positioning component is provided with the first slider and the second slider; the second positioning component includes the first track and the second track.

3. The positioning component according to claim 2, wherein: The first track is a circular track that surrounds the center point of the second positioning component; the second track is a straight track that extends from the center point of the second positioning component to the outside of the circular track on the left and right sides along the center line in the left and right directions, respectively, or extends to the outside of the circular track on the left and right sides along a direction parallel to the center line in the left and right directions of the second positioning component.

4. The positioning component according to claim 3, wherein, The distance between the frontmost and rearmost ends of the circular track is greater than the distance between the leftmost and rightmost ends of the circular track.

5. The positioning component according to claim 3, wherein: The first track is an elliptical track centered on the center of the second positioning component. The line connecting the frontmost and rearmost ends of the elliptical track is the major axis of the elliptical track, and the line connecting the leftmost and rightmost ends of the elliptical track is the minor axis of the elliptical track. The second track is a straight track located in the direction of the minor axis of the elliptical track, and extends outward from the elliptical track.

6. The positioning component according to claim 5, wherein: Corresponding to the positioning component being in a forward-facing riding mode or a backward-facing riding mode, the first slider is disposed on the lower surface of the first positioning component, located at a position corresponding to the rearmost or frontmost end of the first track, and the second slider is disposed on the lower surface of the first positioning component, corresponding to the position of the center point of the second positioning component.

7. The positioning component according to claim 6, wherein: When the first positioning component is in the state of extending from the left, the first slider is disposed on the lower surface of the first positioning component, located at the position corresponding to the rightmost end of the first track, and the second slider is disposed on the lower surface of the first positioning component, located at the position corresponding to the leftmost end of the second track; and / or, when the first positioning component is in the state of extending from the right, the first slider is disposed on the lower surface of the first positioning component, located at the position corresponding to the leftmost end of the first track, and the second slider is disposed on the lower surface of the first positioning component, located at the position corresponding to the rightmost end of the second track.

8. The positioning component according to any one of claims 5-7, wherein: The length of the second track is greater than or equal to the difference between the length of the major axis and the length of the minor axis.

9. The positioning component according to any one of claims 2-7, wherein: A first bearing is fitted onto the first sliding member, and the first bearing is configured to cooperate with the first track; a second bearing is fitted onto the second sliding member, and the second bearing is configured to cooperate with the second track; the outer contour dimension of the first bearing is greater than the outer contour dimension of the second bearing, or the outer contour dimension of the first bearing is greater than the width of the second track.

10. The positioning component according to any one of claims 2-7, wherein: The second positioning component further includes a third track; the third track is disposed below the second track; the second slider is configured to pass through the second track and insert into the third track.

11. The positioning component according to claim 2, wherein: The first track is a circular track, which is arranged around the center point of the second positioning component. The distance between the leftmost and rightmost ends of the first track is greater than the distance between the frontmost and rearmost ends of the first track. The second track is a straight track, which extends from the center point of the second positioning component forward and backward along the center line in the front-back direction to the outside of the circular track, or extends forward and backward along a direction parallel to the center line in the front-back direction of the second positioning component to the outside of the first track.

12. The positioning component according to claim 11, wherein, Corresponding to the positioning component being in a forward-facing riding mode: The first slider is disposed on the lower surface of the first positioning component, located at a position corresponding to the foremost end of the first track; The second slider is disposed on the lower surface of the first positioning component, located at a position corresponding to the rearmost end of the second track.

13. The positioning component according to claim 12, wherein, When the first positioning component is extended to the left, the first slider is disposed on the lower surface of the first positioning component at a position corresponding to the leftmost end of the first track, and the second slider is disposed on the lower surface of the first positioning component at a position corresponding to the center point of the second track; and / or when the first positioning component is extended to the right, the first slider is disposed on the lower surface of the first positioning component at a position corresponding to the rightmost end of the first track, and the second slider is disposed at a position corresponding to the center point of the second track.

14. The positioning component according to claim 1, wherein: The first positioning component is provided with the first track and the second track; the second positioning component is provided with the first slider and the second slider.

15. The positioning component according to claim 14, wherein: The first track is a circular track, which is arranged around the center point of the first positioning component, and the distance between the front end and the rear end of the first track is greater than the distance between the left end and the right end of the first track; the second track is a straight track, which extends from the center point of the first positioning component along the center line in the left-right direction to the outside of the first track, or extends to the outside of the first track in the left-right direction along a direction parallel to the center line in the left-right direction of the first positioning component.

16. The positioning component according to claim 15, wherein, Corresponding to the positioning component being in a forward riding mode: The first slider is disposed on the upper surface of the second positioning component, located at the position corresponding to the leftmost end of the first track; The second slider is disposed on the upper surface of the second positioning component, located at the position corresponding to the rightmost end of the second track.

17. The positioning component according to claim 16, wherein, When the first positioning component is extended to the right, the first slider is disposed on the upper surface of the second positioning component, the rear end of the first track is located at the position corresponding to the first slider, the second slider is disposed on the upper surface of the second positioning component, and the center point of the second track is located at the position corresponding to the second slider; and / or when the first positioning component is withdrawn to the right, the first slider is disposed on the upper surface of the second positioning component, the front end of the first track is located at the position corresponding to the first slider, the second slider is disposed on the upper surface of the second positioning component, and the center point of the second track is located at the position corresponding to the second slider.

18. The positioning component according to claim 15, wherein, Corresponding to the positioning component being in a forward riding mode: The first slider is disposed on the upper surface of the second positioning component, located at the position corresponding to the rightmost end of the first track; The second slider is disposed on the upper surface of the second positioning component, located at the position corresponding to the leftmost end of the second track.

19. The positioning component according to claim 18, wherein, When the first positioning component is extended to the left, the first slider is disposed on the upper surface of the second positioning component, the rear end of the first track is located at the position corresponding to the first slider, the second slider is disposed on the upper surface of the second positioning component, and the center point of the second track is located at the position corresponding to the second slider; and / or when the first positioning component is withdrawn to the left, the first slider is disposed on the upper surface of the second positioning component, the front end of the first track is located at the position corresponding to the first slider, the second slider is disposed on the upper surface of the second positioning component, and the center point of the second track is located at the position corresponding to the second slider.

20. The positioning component according to claim 14, wherein: The first track is a circular track, which is arranged around the center point of the first positioning component, and the distance between the leftmost and rightmost ends of the first track is greater than the distance between the frontmost and rearmost ends of the first track; the second track is a straight track, which extends from the center point of the first positioning component along the center line in the front-back direction to the outside of the first track, or extends along a direction parallel to the center line in the front-back direction of the first positioning component to the outside of the first track, both in the front and rear directions.

21. The positioning component according to claim 20, wherein, Corresponding to the positioning component being in a forward riding mode: The first slider is disposed on the upper surface of the second positioning component, located at the position corresponding to the leftmost end of the first track; The second slider is disposed on the upper surface of the second positioning component, located at the position corresponding to the center point of the second track.

22. The positioning component according to claim 21, wherein, When the first positioning component is extended to the left, the first slider is disposed on the upper surface of the second positioning component, the foremost end of the first track is located at the position corresponding to the first slider, the second slider is disposed on the upper surface of the second positioning component, and the rear end of the second track is located at the position corresponding to the second slider; and / or when the first positioning component is withdrawn to the left, the first slider is disposed on the upper surface of the second positioning component, the rear end of the first track is located at the position corresponding to the first slider, the second slider is disposed on the upper surface of the second positioning component, and the foremost end of the second track is located at the position corresponding to the second slider.

23. The positioning component according to claim 20, wherein, Corresponding to the positioning component being in the forward-facing riding mode: The first slider is disposed on the upper surface of the second positioning component, located at the position corresponding to the rightmost end of the first track; The second slider is disposed on the upper surface of the second positioning component, located at the position corresponding to the center point of the second track.

24. The positioning component according to claim 23, wherein, When the first positioning component is extended to the right, the first slider is disposed on the upper surface of the second positioning component, the foremost end of the first track is located at the position corresponding to the first slider, the second slider is disposed on the upper surface of the second positioning component, and the rearmost end of the second track is located at the position corresponding to the second slider; and / or when the first positioning component is withdrawn to the right, the first slider is disposed on the upper surface of the second positioning component, the rearmost end of the first track is located at the position corresponding to the first slider, the second slider is disposed on the upper surface of the second positioning component, and the foremost end of the second track is located at the position corresponding to the second slider.

25. A positioning component, comprising: A first positioning component and a second positioning component; the positioning component further includes a connecting rod, one end of which is pivotally connected to the first positioning component, and the other end of which is pivotally connected to the second positioning component. The connecting rod is configured to allow the first positioning component to move relative to the second positioning component in a vertical and / or horizontal direction. A support rod is fixedly disposed on the second positioning component, and a sliding portion is sleeved on the support rod. The sliding portion is spaced apart from the bottom of the second positioning component. One end of the connecting rod is pivotally connected to the first positioning component, and the other end of the connecting rod is pivotally connected to the sliding portion.

26. The positioning component according to claim 25, wherein: The positioning component further includes a locking member, which is configured to lock or unlock the first positioning component and the second positioning component; the locking member includes a locking hook and a locking hole; the locking hook is pivotally connected to the first positioning component and includes a free end and a locking end; the locking end is configured to engage with the locking hole or unlock from the locking hole.

27. The positioning component according to claim 26, wherein, The locking end of the locking hook includes a bevel, which is used by the first elastic member to press the locking end against a side wall of the locking hole to guide the locking end into the locking hole.

28. The positioning component according to claim 26, wherein: The second positioning component has two support rods fixedly mounted on it; a limiting rod is provided between the two support rods, and both ends of the limiting rod are fixedly connected to the two support rods respectively; when the locking end releases from the locking hole, the limiting rod restricts the locking hook to remain in a position; and / or a limiting groove is formed on the lower surface of the first positioning component, when the first positioning component is locked onto the second positioning component, the locking end of the locking hook engages with the locking hole, and the limiting rod engages in the limiting groove.

29. A child restraint system for installation in a vehicle seat, comprising: A child safety seat or a child carrier, and the positioning component described in claim 1 or 25, wherein the child safety seat or child carrier is detachably mounted on the positioning component.

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