Carrier and positioning assembly thereof

Abstract

The utility model relates to a carrier and a positioning assembly thereof, the positioning assembly comprises a first positioning assembly and a second positioning assembly, the first positioning assembly is rotatably arranged on the second positioning assembly, the first positioning assembly is used for being detachably connected with a carrier body, and the carrier body is a first carrier body or a second carrier body; when the first positioning assembly is used for being connected with the first carrier body and rotates to face the first direction relative to the second positioning assembly, the first positioning assembly can limit the first carrier body to be separated from the first positioning assembly. When the first positioning assembly is used for being connected with the second carrier body, the first positioning assembly is limited to rotate to the first direction relative to the second positioning assembly.

Description

Technical Field

[0001] This application relates to the field of infant and toddler products technology, and in particular to a carrier and its positioning components. Background Technology

[0002] Currently available positioning devices typically offer compatibility with different types of vehicle bodies, such as infant car seats and child safety seats. Each type of vehicle body can be rotatably mounted on the positioning device, allowing users to adjust its orientation according to their needs. However, because different types of vehicle bodies have different applicable orientations, incorrect use of the vehicle body's orientation may pose potential safety hazards. Utility Model Content

[0003] Therefore, it is necessary to provide a vehicle and its positioning component to address the above problems. The positioning component can selectively allow or restrict the vehicle body from detaching, and can also selectively restrict the rotation angle of the vehicle body.

[0004] This application provides a positioning component, including a first positioning component and a second positioning component. The first positioning component is rotatably disposed on the second positioning component. The first positioning component is used to detachably connect to a vehicle body, which is either a first vehicle body or a second vehicle body. When the first positioning component is used to connect to the first vehicle body and rotates relative to the second positioning component to face a first direction, the first positioning component can prevent the first vehicle body from disengaging from the first positioning component. When the first positioning component is used to connect to the second vehicle body, the first positioning component is restricted from rotating relative to the second positioning component to face the first direction.

[0005] In one embodiment, the system further includes: a first connecting mechanism disposed on the first positioning component and having a locked state and an unlocked state, wherein when the first connecting mechanism is in the locked state, the first connecting mechanism is connected to the vehicle body, and when the first connecting mechanism is in the unlocked state, the first connecting mechanism is disassembled from the vehicle body; and a first restricting mechanism disposed between the first positioning component and the second positioning component for selectively allowing or restricting the first connecting mechanism to switch between the locked state and the unlocked state.

[0006] In one embodiment, it further includes: a locking and retaining mechanism movably disposed on the first positioning component and used to maintain the connection between the first connecting mechanism and the vehicle body; wherein, when the first positioning component is used to connect the first vehicle body and is oriented toward the first direction, the first restricting mechanism enters the movement path of the locking and retaining mechanism to restrict the movement of the locking and retaining mechanism, thereby restricting the first connecting mechanism from switching from the locked state to the unlocked state.

[0007] In one embodiment, the first limiting mechanism includes: a first limiting groove disposed on the side of the second positioning component facing the first positioning component; and a first limiting member movably disposed on the first positioning component and capable of being inserted into or retracted from the first limiting groove; wherein, when the first limiting member is inserted into the first limiting groove, the first limiting member allows the first connecting mechanism to switch to the unlocked state; when the first limiting member retracts from the first limiting groove, the first limiting member restricts the first connecting mechanism from switching to the unlocked state; and when the first positioning component rotates relative to the second positioning component to face the first direction, the first limiting member retracts from the first limiting groove.

[0008] In one embodiment, the first positioning component has a rotation axis, and the first limiting member is offset from the rotation axis; a straight line passing through the rotation axis and perpendicular to the first direction is defined as a reference line. When the first positioning component is facing the first direction, the first limiting member and the first limiting groove are misaligned and located on both sides of the reference line.

[0009] In one embodiment, the first positioning component is a circular structure, the rotation axis is the center of the first positioning component, the first limiting groove is a semi-circular groove, the radius of the semi-circular groove is the distance between the center of the first limiting member and the center of the first positioning component, and when the first positioning component rotates relative to the second positioning component to face away from the first direction, the first limiting member is located at the midpoint of the first limiting groove.

[0010] In one embodiment, the end of the first limiting member facing the second positioning component is provided with a sliding inclined surface, which can push against the first limiting groove so that the first limiting member moves away from the first limiting groove in a direction away from the second positioning component.

[0011] In one embodiment, the first limiting mechanism further includes a first reset member, which is used to provide an elastic restoring force to the first limiting member to drive the first limiting member into the first limiting groove.

[0012] In one embodiment, the first positioning component includes: a first housing having a first mounting cavity, the first housing further having a first limiting hole communicating with the first mounting cavity, the first limiting member being movably disposed in the first mounting cavity and at least a portion of the first limiting member being able to extend out of the first mounting cavity through the first limiting hole.

[0013] In one embodiment, the first connecting mechanism includes a locking hook, which is pivotally connected to the first housing and has a locked position and an unlocked position; when the locking hook is in the locked position, the locking hook is used to engage and lock with the vehicle body.

[0014] In one embodiment, the device further includes a locking and retaining mechanism, which is movably disposed within the first mounting cavity. When the engaging hook is driven to the locking position, the locking and retaining mechanism is used to lock the engaging hook in the locking position.

[0015] In one embodiment, the locking and retaining mechanism includes a first locking member movably disposed within the first mounting cavity and having a first position and a second position; one of the first locking member and the engaging hook is provided with a locking groove, and the other is provided with an engaging portion; when the first locking member is in the first position, the locking groove engages with the engaging portion to lock the engaging hook in the locked position; when the first locking member is in the second position, the locking groove disengages from the engaging portion to allow the engaging hook to switch between the locked position and the release position.

[0016] In one embodiment, when the first limiting member retracts from the first limiting groove, the first limiting member is located on the movement path of the first locking member to restrict the first locking member from switching from the first position to the second position; when the first limiting member is inserted into the first limiting groove, the first limiting member deviates from the movement path of the first locking member to allow the first locking member to switch from the first position to the second position.

[0017] In one embodiment, the locking and retaining mechanism further includes a third reset member for providing an elastic restoring force to the first locking member to keep the first locking member in the first position.

[0018] In one embodiment, the positioning component further includes a first release member movably disposed on the first positioning component, the first release member being driven connected to the first locking member, and the first release member being operable to drive the first locking member to move from the first position to the second position.

[0019] In one embodiment, the first unlocking member is provided with a driving ramp; the first locking member is further provided with a driving part adapted to abut against the driving ramp and slide along the driving ramp, so that the first locking member can switch between the first position and the second position.

[0020] In one embodiment, a second limiting mechanism is further included, which is disposed between the first positioning component and the second positioning component, for selectively limiting the angular range of rotation of the first positioning component relative to the second positioning component.

[0021] In one embodiment, the second limiting mechanism has a first state and a second state. When the second limiting mechanism is in the first state, it restricts the first positioning component from rotating relative to the second positioning component toward the first direction. When the second limiting mechanism is in the second state, it allows the first positioning component to rotate relative to the second positioning component toward the first direction. The positioning component further includes an elastic element. The elastic element always keeps the second limiting mechanism in the first state. When the first positioning component is used to connect to the first vehicle body, the second limiting mechanism is in the second state by overcoming the elastic force of the elastic element through the first vehicle body. Alternatively, the elastic element always keeps the second limiting mechanism in the second state. When the first positioning component is used to connect to the second vehicle body, the second limiting mechanism is in the first state by overcoming the elastic force of the elastic element through the second vehicle body.

[0022] In one embodiment, the second limiting mechanism includes: a second limiting groove disposed on one of the second positioning component and the first positioning component; and a second limiting member movably disposed on the other of the second positioning component and the first positioning component and capable of being inserted into or retracted from the second limiting groove; wherein, when the first positioning component is used to connect the second carrier body, the second limiting member is inserted into the second limiting groove, and the first positioning component is restricted to rotate relative to the second positioning component toward the first direction.

[0023] In one embodiment, the first positioning component has a rotation axis, and the second limiting member is offset from the rotation axis; a straight line passing through the rotation axis and perpendicular to the first direction is defined as a reference line. When the first positioning component is facing the first direction, the second limiting member and the second limiting groove are misaligned and located on both sides of the reference line.

[0024] In one embodiment, the first positioning component is a circular structure, the rotation axis is the center of the first positioning component, the second limiting groove is a semi-circular groove, the radius of the semi-circular groove is the distance between the center of the second limiting member and the center of the first positioning component, and when the first positioning component rotates relative to the second positioning component to face away from the first direction, the second limiting member is located at the midpoint of the second limiting groove.

[0025] In one embodiment, a linkage mechanism is further included, which is disposed in the first positioning component and is used to drive the second limiting member. The linkage mechanism can drive the second limiting member to retract or insert into the second limiting groove.

[0026] In one embodiment, the linkage mechanism includes a linkage member movably disposed in the first positioning component and having a third position and a fourth position. A first inclined groove is formed at a first end of the linkage member, and the end of the second limiting member opposite to the second limiting groove is slidably disposed in the first inclined groove. When the linkage member moves to the third position, the second limiting member is inserted into the second limiting groove. When the linkage member moves to the fourth position, the second limiting member retracts from the second limiting groove.

[0027] In one embodiment, the linkage mechanism further includes a pressing member, which is movably disposed in the first positioning component and has a fifth position and a sixth position. The pressing member has a second inclined groove, and the second end of the linkage member is slidably disposed in the second inclined groove. When the pressing member is in the fifth position, the linkage member is located in the third position; when the pressing member is in the sixth position, the linkage member is located in the fourth position.

[0028] In one embodiment, the extension direction of the first inclined groove intersects with the extension direction of the second inclined groove.

[0029] In one embodiment, the linkage mechanism further includes a fourth reset member that abuts against the linkage and provides an elastic restoring force to the linkage to drive the linkage to remain in the third position.

[0030] In one embodiment, when the first positioning component is used to connect with the second vehicle body, the pressing member is in the fifth position and the linkage member is in the third position.

[0031] In one embodiment, the positioning component further includes a rotational movement mechanism, through which the first positioning component is slidably connected to the second positioning component, and the first positioning component moves and turns simultaneously relative to the sliding of the second positioning component.

[0032] In one embodiment, the rotary movement mechanism includes a first track, a second track, a first slider, and a second slider. The first track extends along the first direction, the second track intersects with the first track, and the first slider and the second slider are spaced apart from each other in the first positioning component. The first slider is used to slide within the second track, and the second slider is used to slide within the first track.

[0033] In one embodiment, the intersection of the first track and the second track forms an intersection point, and the distance between the intersection point and the end of the first track or the end of the second track is greater than or equal to the distance between the first slider and the second slider.

[0034] In one embodiment, when the first slider is located at the intersection, the second slider is located within the first track, and the first positioning component faces or is away from the first direction relative to the second positioning component; when the second slider is located at the intersection, the first slider is located within the second track, and the first positioning component is positioned facing or is away from the second positioning component relative to the second positioning component in a second direction, which intersects with the first direction.

[0035] In one embodiment, the second positioning component includes a second housing having a second mounting cavity communicating with the first track and the second track; the rotary moving mechanism further includes a first slider and a second slider, the first slider being located within the second mounting cavity and connected to the first slider member; the second slider being located within the second mounting cavity and connected to the second slider member.

[0036] In one embodiment, the positioning component further includes a first locking mechanism disposed between the first positioning component and the second positioning component. The first locking mechanism has a first locked state and a first unlocked state. When the first locking mechanism is in the first locked state, the first positioning component is restricted from rotating relative to the second positioning component. When the first locking mechanism is in the first unlocked state, the first positioning component is allowed to rotate relative to the second positioning component.

[0037] In one embodiment, the first locking mechanism includes: a locking component movably disposed on one of the second positioning component and the first positioning component; and a locking recess disposed on the other of the second positioning component and the first positioning component; wherein, when the locking component is inserted into the locking recess, the first positioning component and the second positioning component are locked together to restrict the first positioning component from rotating relative to the second positioning component; when the locking component is disengaged from the locking recess, the first positioning component can rotate relative to the second positioning component.

[0038] In one embodiment, the locking assembly includes a first locking portion, which is movably disposed in either the second positioning assembly or the first positioning assembly along the first direction; when the first positioning assembly rotates relative to the second positioning assembly to either facing the first direction or facing away from the first direction, the first locking portion can lock into the locking recess.

[0039] In one embodiment, the positioning component further includes a first release mechanism operably connected to the first lock and used to drive the first lock out of the locking recess.

[0040] In one embodiment, the first locking part is movably disposed on the second positioning component, the locking recess is disposed on the first positioning component, and the first unlocking mechanism includes: a first driving member, pivotally connected to the second positioning component and pivotally connected to the first locking part; a first operating member, operably disposed on the second positioning component; and a first traction component, respectively connected to the first operating member and the first driving member; wherein, when the first operating member is operated, the first operating member drives the first driving member to pivot through the first traction component, so that the first driving member can drive the first locking part to exit from the locking recess.

[0041] In one embodiment, the locking assembly further includes a second locking portion, which is movably disposed on one of the second positioning assembly and the first positioning assembly, and the second locking portion and the first locking portion are disposed opposite to each other along the first direction; when the first positioning assembly rotates relative to the second positioning assembly to either facing the first direction or facing away from the first direction, the second locking portion can lock into the locking recess.

[0042] In one embodiment, the first positioning component further includes a second driving member and a second transmission component, the second transmission component being configured to drive the second driving member to move such that the second driving member drives the second locking portion to disengage from the locking recess.

[0043] In one embodiment, the locking recess is disposed on the first positioning component, the second locking part is disposed on the second positioning component, and the second driving member can push the second locking part out of the locking recess when driven by the second transmission component.

[0044] In one embodiment, the second transmission assembly includes: a transmission member movably disposed on the first positioning assembly and configured to be drivenly connected to the first transmission assembly disposed on the first vehicle body; a third driving member pivotally connected to the first positioning assembly, with one end of the third driving member pivotally connected to the second driving member; and a third traction assembly connected to the other ends of the transmission member and the third driving member, respectively; when the transmission member is driven to move by the first transmission assembly, the transmission member drives the third driving member to pivot via the third traction assembly, causing the second driving member to move so as to push the second locking portion out of the locking recess.

[0045] In one embodiment, the second positioning component includes a second housing, the upper surface of the second housing having a protrusion forming a limiting protrusion, and a groove structure being formed between the limiting protrusion and the upper surface of the second housing. The first positioning component includes a first housing, and when the first positioning component is facing or away from the first direction relative to the second positioning component, a portion of the edge of the first housing is inserted into the groove structure.

[0046] In one embodiment, the second housing includes a second top cover and a second bottom cover connected to each other. The upper surface of the second top cover is provided with the protrusion, the protrusion is formed with the limiting protrusion, and the limiting protrusion and the upper surface of the second top cover form the groove structure.

[0047] In one embodiment, the second positioning component includes a frame and at least one first support mechanism. The first support mechanism includes a first support member and a second support member. The first support member is fixed to the frame, and the second support member is supported on the first support member. When the first positioning component is facing or away from the first direction relative to the second positioning component, at least a portion of the second support member is located below the first positioning component.

[0048] In one embodiment, the second support member includes two connecting pieces disposed opposite each other and a connecting piece connecting the two connecting pieces, the two connecting pieces being supported by the first support member, and the connecting piece being located below the limiting protrusion.

[0049] In one embodiment, the connecting piece includes a connecting body and a support protrusion protruding from the connecting body, wherein the support protrusion and the connecting piece form an engagement groove, the engagement groove being located within the groove structure and used to accommodate a portion of the edge of the first housing.

[0050] In one embodiment, the second positioning component includes two first support structures disposed opposite each other along the first direction. When the first positioning component is facing or away from the first direction relative to the second positioning component, the second support provides support for the first positioning component.

[0051] In one embodiment, the first positioning component further includes a second support mechanism, the second support mechanism including a first slider and a second slider, the first positioning component including a first housing, the second positioning component including a second housing, and the first slider and the second slider being respectively connected to the first housing and the second housing.

[0052] In one embodiment, the second positioning component further includes a third support mechanism and a second housing. The second housing includes a second top cover and a second bottom cover connected to each other. The third support mechanism includes a plurality of support columns, each of the support columns including a bottom column disposed on the second bottom cover and a top column disposed on the second top cover, and the bottom column is connected to the top column.

[0053] This application also provides a positioning assembly for mounting one of a first vehicle body and a second vehicle body to a vehicle seat, comprising: a second positioning assembly detachably mounted to the vehicle seat; a first positioning assembly rotatably disposed on the second positioning assembly, and the first positioning assembly being detachably connected to one of the first vehicle body and the second vehicle body; a first limiting mechanism disposed between the first positioning assembly and the second positioning assembly, wherein when the first positioning assembly is connected to the first vehicle body, the first limiting mechanism selectively allows or restricts the first vehicle body from disengaging relative to the first positioning assembly; and a second limiting mechanism disposed between the first positioning assembly and the second positioning assembly, wherein when the first positioning assembly is connected to the second vehicle body, the second limiting mechanism is used to selectively limit the angular range of rotation of the first positioning assembly relative to the second positioning assembly.

[0054] In one embodiment, when the first positioning component is connected to the first vehicle body and the first positioning component is rotated relative to the second positioning component to face a first direction, the first limiting mechanism is used to limit the first vehicle body from detaching from the first positioning component.

[0055] In one embodiment, the first limiting mechanism includes: a first limiting groove disposed on the side of the second positioning component facing the first positioning component; and a first limiting member movably disposed on the first positioning component and capable of being inserted into or retracted from the first limiting groove; wherein, when the first positioning component is used to connect the first vehicle body and rotates relative to the second positioning component to face the first direction, the first limiting member is inserted into the first limiting groove to restrict the first vehicle body from detaching from the first positioning component.

[0056] In one embodiment, the first positioning component includes a first connecting mechanism for detachably connecting to the first vehicle body and having a locked state and an unlocked state. When the first connecting mechanism is in the locked state, the first vehicle body is restricted from disengaging from the first connecting mechanism; when the first connecting mechanism is in the unlocked state, the first vehicle body is allowed to disengage from the first connecting mechanism. The positioning component also includes a locking and retaining mechanism movably disposed on the first positioning component and used to retain the first connecting mechanism in the locked state. When the first limiting member retracts from the first limiting groove, the first limiting member is located in the movement path of the locking and retaining mechanism to restrict the movement of the locking and retaining mechanism. When the first limiting member is inserted into the first limiting groove, the first limiting member deviates from the movement path of the locking and retaining mechanism to allow the locking and retaining mechanism to move.

[0057] In one embodiment, the second limiting mechanism includes: a second limiting groove disposed on one of the second positioning component and the first positioning component; and a second limiting member movably disposed on the other of the second positioning component and the first positioning component and capable of being inserted into or retracted from the second limiting groove; wherein, when the first positioning component is used to connect the second carrier body, the second limiting member is inserted into the second limiting groove, and the first positioning component is restricted to rotate relative to the second positioning component toward a first direction.

[0058] In one embodiment, the positioning component further includes a rotational movement mechanism, through which the first positioning component is slidably connected to the second positioning component, and the first positioning component moves and turns simultaneously relative to the sliding of the second positioning component.

[0059] In one embodiment, the rotary movement mechanism includes a first track, a second track, a first slider, and a second slider. The extension direction of the second track intersects the extension direction of the first track. The first slider and the second slider are spaced apart from each other in the first positioning component. The first slider is used to slide within the second track, and the second slider is used to slide within the first track.

[0060] In one embodiment, the intersection of the first track and the second track forms an intersection point, and the distance between the intersection point and the end of the first track or the end of the second track is greater than or equal to the distance between the first slider and the second slider.

[0061] This application also provides a carrier, including: a positioning component as described above; and a carrier body detachably connected to a first positioning component of the positioning component, wherein the carrier body is a first carrier body or a second carrier body.

[0062] In one embodiment, a positioning component as described above is included, wherein the first transmission component includes: a pushing member movably disposed on the first carrier body and used to push against the transmission component; and a second traction component connected to the pushing member and the second operating member respectively; when the second operating member is operated, the second operating member drives the pushing member to push against the transmission component through the second traction component.

[0063] This application also includes a positioning component, comprising: a first positioning component having a rotation axis, the first positioning component being detachably connected to a vehicle body, the vehicle body being either a first vehicle body or a second vehicle body; a second positioning component; and a rotational movement mechanism, the rotational movement mechanism including a track and a slider sliding within the track, the first positioning component simultaneously displacing and rotating relative to the second positioning component via the rotational movement mechanism, the rotation axis displacing along a straight line trajectory perpendicular to the track as the first positioning component displaces and rotates, the track having a first groove segment and a second groove segment located on both sides of the intersection of the straight line trajectory and the track; wherein, when the first positioning component is used to connect to the first vehicle body and the slider is located in the second groove segment, the first positioning component restricts the first vehicle body from disengaging from the first positioning component; when the first positioning component is used to connect to the second vehicle body, the slider is restricted from moving to the second groove segment.

[0064] In one embodiment, the slider is disposed on the first positioning component and offset from the rotation axis, and the track is disposed on the second positioning component.

[0065] In one embodiment, the first slot is located in a first direction at the intersection, and the second slot is located in a direction away from the first direction at the intersection. When the slider is located in the second slot, the first positioning component is oriented toward the first direction relative to the second positioning component.

[0066] This application also provides a positioning component for mounting a first vehicle body or a second vehicle body to a car seat, comprising: a third positioning component detachably mounted to the car seat; a second positioning component rotatably disposed on the third positioning component; a first positioning component movably disposed on the second positioning component and having an extended state and a retracted state, and the first positioning component being detachably connected to the first vehicle body or the second vehicle body; and an extension mechanism connected between the first positioning component and the second positioning component for guiding the first positioning component to switch between the extended state and the retracted state.

[0067] In one embodiment, the extension mechanism includes a first main connecting rod, a second main connecting rod, and a first auxiliary rod. One of the first main connecting rod and the second main connecting rod is connected to the first positioning component, and the other is connected to the second positioning component. The two ends of the first auxiliary rod are pivotally connected to the first main connecting rod and the second main connecting rod, respectively, so that the first main connecting rod and the second main connecting rod can move closer to each other or further apart. When the first main connecting rod and the second main connecting rod move closer to each other, the first positioning component is in the retracted state; when the first main connecting rod and the second main connecting rod move further apart, the first positioning component is in the extended state.

[0068] In one embodiment, one end of the first main connecting rod and one end of the second main connecting rod are respectively provided with gears, the two gears mesh with each other, and the two ends of the first auxiliary rod are respectively pivotally connected to the center of the two gears.

[0069] In one embodiment, the extension mechanism further includes a first reinforcing rod and a third auxiliary rod, the first reinforcing rod being pivotally connected to the third auxiliary rod, and the end of the first reinforcing rod away from the third auxiliary rod being pivotally connected to the first auxiliary rod, and the end of the third auxiliary rod away from the first reinforcing rod being pivotally connected to the first main connecting rod, so that the first main connecting rod, the first auxiliary rod, the first reinforcing rod and the third auxiliary rod form a four-bar linkage structure, and the third auxiliary rod is connected to the second positioning component.

[0070] In one embodiment, the extension mechanism further includes a second auxiliary rod, the two ends of which are pivotally connected to the center of the two gears, and the second auxiliary rod and the first auxiliary rod are located on both sides of the gears.

[0071] In one embodiment, the extension mechanism further includes a second reinforcing rod and a fourth auxiliary rod, the second reinforcing rod being pivotally connected to the fourth auxiliary rod, and the end of the second reinforcing rod away from the fourth auxiliary rod being connected to the second auxiliary rod, and the end of the fourth auxiliary rod away from the second reinforcing rod being pivotally connected to the second main connecting rod, so that the second main connecting rod, the second auxiliary rod, the second reinforcing rod and the fourth auxiliary rod form a four-bar linkage structure, and the fourth auxiliary rod is connected to the first positioning component.

[0072] In one embodiment, a second locking mechanism is further included, which is disposed between the first positioning component and the second positioning component. The second locking mechanism has a second locked state and a second unlocked state. When the second locking mechanism is in the second locked state, the first positioning component is restricted from moving relative to the second positioning component. When the second locking mechanism is in the second unlocked state, the first positioning component is allowed to move relative to the second positioning component.

[0073] In one embodiment, the second locking mechanism includes a second locking member pivotally connected to the first positioning component. The second locking member has an operating end and a locking end. The second positioning component is provided with a locking engagement portion. The second locking member is pivotable between a locked position and an unlocked position. When the second locking member is in the locked position, the locking end can lock into the locking engagement portion. When the second locking member is in the unlocked position, the locking end can disengage from the locking engagement portion. The operating end can be operated to pivot the second locking member from the locked position to the unlocked position. Attached Figure Description

[0074] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0075] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0076] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:

[0077] FIG. 1This is a three-dimensional structural diagram of a vehicle in one embodiment of the present application, wherein the first vehicle body is connected to the first positioning component, and the first positioning component faces a first direction;

[0078] FIG. 2 This is a three-dimensional structural diagram of a vehicle in one embodiment of the present application, wherein the first vehicle body is connected to the first positioning component, and the first positioning component is oriented towards a third direction;

[0079] FIG. 3 This is a three-dimensional structural diagram of a vehicle in one embodiment of this application, wherein the first vehicle body is connected to the first positioning component, and the first positioning component faces the fourth direction;

[0080] FIG. 4 This is a three-dimensional structural diagram of a vehicle in one embodiment of this application, wherein the second vehicle body is connected to the first positioning component, and the first positioning component is oriented towards a third direction;

[0081] FIG. 5 This is a three-dimensional structural diagram of a vehicle in one embodiment of the present application, wherein the second vehicle body is connected to the first positioning component, and the first positioning component faces the fourth direction;

[0082] FIG. 6 It shows FIG. 5 A three-dimensional view of the second vehicle body in the middle;

[0083] FIG. 7 This is a three-dimensional structural diagram of the positioning component in the first embodiment of this application, wherein the first positioning component faces a first direction;

[0084] FIG. 8 This is a three-dimensional structural diagram of the positioning component in the first embodiment of this application, wherein the first positioning component faces the second direction;

[0085] FIG. 9 This is a three-dimensional structural diagram of the positioning component in the first embodiment of this application, wherein the first positioning component faces the fourth direction;

[0086] FIG. 10 This is a three-dimensional structural diagram of the positioning component in the first embodiment of this application, wherein the first positioning component faces a third direction;

[0087] FIG. 11 for FIG. 7 A three-dimensional structural diagram of the first positioning component in the positioning assembly;

[0088] FIG. 12 It shows FIG. 11 A cross-sectional view of U1-U1, showing the locking hook in the locked position;

[0089] FIG. 13 It shows FIG. 11A cross-sectional view of U1-U1, in which the locking hook is in the unlocked position;

[0090] FIG. 14 for FIG. 7 A three-dimensional structural diagram of the first positioning component in the mid-positioning assembly from another perspective;

[0091] FIG. 15 for FIG. 14 Exploded view of the first positioning component;

[0092] FIG. 16 for FIG. 15 Enlarged view of point A in the middle circle;

[0093] FIG. 17 for FIG. 15 A partial structural diagram of the first positioning component, omitting the first top cover;

[0094] FIG. 18 for FIG. 17 Enlarged view of point B in the middle circle;

[0095] FIG. 19 for FIG. 17 Enlarged view of point C in the middle circle;

[0096] FIG. 20 for FIG. 15 A partial structural diagram of the first positioning component, omitting the first bottom cover;

[0097] FIG. 21 for FIG. 20 Enlarged view of point D in the middle circle;

[0098] FIG. 22 for FIG. 7 A three-dimensional structural diagram of the second positioning component in the central positioning assembly;

[0099] FIG. 23 for FIG. 7 A three-dimensional structural diagram of the second positioning component in the central positioning component from another perspective;

[0100] FIG. 24 for FIG. 7 A top view of the second positioning component in the positioning system;

[0101] FIG. 25 for FIG. 7 A top view of the second positioning component in the middle positioning assembly, omitting the second top cover;

[0102] FIG. 26 for FIG. 25 Enlarged view of point O in the middle circle;

[0103] FIG. 27 for FIG. 25 Enlarged view of point P in the middle circle;

[0104] FIG. 28 A bottom view of the second top cover of the second positioning assembly is shown;

[0105] FIG. 29 It shows FIG. 1 U2-U2 sectional view;

[0106] FIG. 30 for FIG. 29 Enlarged view of point E in the center circle;

[0107] FIG. 31 for FIG. 29 Enlarged view of point F in the middle circle;

[0108] FIG. 32 It shows FIG. 2 U3-U3 sectional view;

[0109] FIG. 33 for FIG. 32 Enlarged view of point G in the center circle;

[0110] FIG. 34 for FIG. 32 Enlarged view of point H in the middle circle;

[0111] FIG. 35 It shows FIG. 4 U4-U4 sectional view;

[0112] FIG. 36 for FIG. 35 Enlarged view of point J in the center circle;

[0113] FIG. 37 for FIG. 35 Enlarged view of point K in the middle circle;

[0114] FIG. 38 This is a partial structural schematic diagram of the second positioning component shown in one embodiment of this application;

[0115] FIG. 39 for FIG. 38 A schematic diagram of the structure of the second support member in the second positioning component;

[0116] FIG. 40 This is a partial structural schematic diagram of the second positioning component according to another embodiment of this application;

[0117] FIG. 41 for FIG. 40 A structural diagram from another perspective;

[0118] FIG. 42 for FIG. 9 U5-U5 sectional view;

[0119] FIG. 43This is a three-dimensional structural diagram of the positioning component in the first embodiment of this application, wherein the first top cover and the second top cover are omitted;

[0120] FIG. 44 for FIG. 43 Enlarged view of point S in the middle circle;

[0121] FIG. 45 This is a three-dimensional structural diagram of the positioning component in the first embodiment of this application, wherein the first top cover, the first bottom cover, and the second top cover are omitted;

[0122] FIG. 46 for FIG. 45 Enlarged view of the center circle T;

[0123] FIG. 47 for FIG. 43 A schematic diagram of the third traction component, in which the third traction component is not deformed;

[0124] FIG. 48 for FIG. 43 A schematic diagram of the third traction component, which is deformed;

[0125] FIG. 49 It shows FIG. 1 Front view of the first vehicle body in the middle;

[0126] FIG. 50 It shows FIG. 49 A cross-sectional view of U6-U6, in which the pusher is not pressed down;

[0127] FIG. 51 It shows FIG. 49 A cross-sectional view of U6-U6, in which the pusher is pressed down;

[0128] FIG. 52 This is a three-dimensional structural diagram of the positioning component in the second embodiment of this application, wherein the first positioning component faces the first direction;

[0129] FIG. 53 This is a three-dimensional structural diagram of the positioning component in the second embodiment of this application, wherein the first positioning component faces a third direction;

[0130] FIG. 54 This is a three-dimensional structural diagram of the positioning component in the second embodiment of this application, wherein the first positioning component faces the second direction and is in a retracted state;

[0131] FIG. 55 This is a three-dimensional structural diagram of the positioning component in the second embodiment of this application, wherein the first positioning component faces the second direction and is in an extended state;

[0132] FIG. 56 forFIG. 55 Enlarged view of the area marked L in the center circle;

[0133] FIG. 57 This is a three-dimensional structural diagram of the positioning component in the second embodiment of this application, wherein the first positioning component faces the fourth direction;

[0134] FIG. 58 This is a cross-sectional view of the positioning component in the second embodiment of this application.

[0135] Explanation of reference numerals in the attached figures:

[0136] 1000, Carrier; 100, Positioning assembly; 110, First positioning assembly; 111, First housing; 1111, First mounting cavity; 1112, First limiting hole; 1113, Second limiting hole; 1114, Pushing hole; 1115, First top cover; 1116, First bottom cover; 1117, Pushing hole; 1118, Edge; 112, First connecting mechanism; 1121, Engaging hook; 11211, Engaging part; 11212, Receiving groove; 11213, Pushing wall; 1122, Slot; 113, Indicating mechanism; 1131, Swinging component; 1132, Color block; 1133, Observation hole; 114, Moving limiting seat; 1141, Movable cavity; 1142, First opening; 1143, Second opening; 115. Support plate; 116. Support rod; 117. Second support mechanism; 120. Second positioning assembly; 121. Second housing; 1211. Second mounting cavity; 1212. Second top cover; 1213. Second bottom cover; 1214. Protrusion; 1215. Limiting protrusion; 1216. First channel; 1217. Second channel; 122. Locking mating part; 123. Support frame; 124. Pivot shaft; 125. Seat connection plug; 126. Support leg; 127. First support mechanism; 1271. First support member; 1272. Second support member; 12721. Connecting piece; 12721a. Connecting body; 12721b. Support protrusion; 12721c. Fixing groove; 12721d. Engaging groove ; 12722, Connecting piece; 12722a, Arched part; 12722b, Receiving groove; 12722c, Fastening hole; 1273, Support pad; 1274, Auxiliary support piece; 12741, First auxiliary piece; 12742, Second auxiliary piece; 12743, Third auxiliary piece; 12744, Orifice; 128, Frame; 1281, First straight rod; 1282, Second straight rod; 1283, Arc rod; 129, Third support mechanism; 1291, First support column; 1291a, First bottom column; 1291b, First top column; 1292, Second support column; 1292a, Second bottom column; 1292b, Second top column; 130, Third positioning component; 140, First limiting mechanism; 141 142. First limiting groove; 1421. First limiting member; 1422. Sliding inclined surface; 1423. Strip hole; 1444. First reset member; 150. Locking and retaining mechanism; 151. First locking member; 1511. Locking groove; 1512. Drive unit; 152. Third reset member; 160. First release member; 161. Drive inclined surface; 170. Second limiting mechanism; 171. Second limiting groove; 172. Second limiting member; 1721. Guide protrusion; 180. Linkage mechanism; 181. Linkage member; 1811. First inclined groove; 182. Pressing member; 1821. Second inclined groove; 183. Fourth reset member; 190. Rotational movement mechanism; 191. First track; 192. Second track; 193. Intersection point;194. First sliding member; 195. Second sliding member; 196. First slider; 197. Second slider; 1971. Groove; 198. Sliding wheel; 211. Locking assembly; 2111. First locking part; 2112. Second locking part; 2113. Fifth reset member; 2114. Seventh reset member; 212. Locking recess; 230. Extension mechanism; 231. First main connecting rod; 232. Second main connecting rod; 233. First auxiliary rod; 234. Gear; 235. First reinforcing rod; 23 6. Third auxiliary rod; 237. Second auxiliary rod; 238. Second reinforcing rod; 239. Fourth auxiliary rod; 240. Second locking mechanism; 241. Second locking element; 2411. Operating end; 2412. Locking end; 242. Button; 300. First release mechanism; 310. First driving element; 320. First operating element; 330. First traction assembly; 331. First traction rope; 400. Second release mechanism; 410. Second driving element; 411. Elastic arm; 420. Second operating element Components; 430, First transmission assembly; 431, Pushing component; 432, Second traction assembly; 4321, Second traction rope; 433, Linking block; 434, Guide wheel; 440, Second transmission assembly; 441, Transmission component; 4411, Fixed base; 44111, First connecting part; 4412, Movable pushing base; 44121, Second connecting part; 4413, Third connecting part; 442, Third driving component; 443, Third traction assembly; 4431, Third traction rope; 44311, First... 44312, Second rope end; 4432, Third traction sleeve; 44321, First sleeve end; 44322, Second sleeve end; 444, Eighth reset component; 500, First vehicle body; 520, Pushing component; 530, Sixth reset component; 600, Second vehicle body; 610, Engaging component; F1, First direction; F2, Second direction; F3, Third direction; F4, Fourth direction; F5, Fifth direction; Q1, First pivot point; Q2, Second pivot point; Q3, Third pivot point. Detailed Implementation

[0137] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0138] FIGS. 1-5A perspective view of a vehicle 1000 according to some embodiments of the present invention is schematically shown. The vehicle 1000 may include, for example, a first vehicle body 500, a second vehicle body 600, and a positioning component 100 according to some embodiments of the present invention. The first vehicle body 500, the second vehicle body 600, and the positioning component 100 will be described in conjunction with the vehicle 1000 described below.

[0139] See FIGS. 1-3 In some embodiments, the first vehicle body 500 may be, for example, a child safety seat primarily intended for use by older children. See also FIGS. 4-6 In some embodiments, the second vehicle body 600 may be, for example, an infant safety carrier, primarily intended for use by infants aged 0 to 15 months (approximately 10 kg or less). For safety reasons, when placed on a vehicle seat, the infant safety carrier is restricted to facing the front of the vehicle, i.e., restricted to facing forward along the normal direction of travel.

[0140] FIGS. 7-10 A perspective view of the positioning component 100 in different states in the first embodiment of this utility model is schematically shown. It should be noted that when the vehicle 1000 is entirely a child safety seat, the positioning component 100 can be considered as the vehicle base. Specifically, the positioning component 100 includes a first positioning component 110 and a second positioning component 120, with the first positioning component 110 rotatably mounted on the second positioning component 120. The second positioning component 120 is used for detachable connection to the car seat. Specifically, the second positioning component 120 is provided with a seat connection mechanism 125 (e.g., an ISOFIX connector) and a support leg 126. The seat connection mechanism 125 is mainly used to fix the second positioning component 120 to the car seat, and the support leg 126 is used to abut against the floor inside the vehicle. The first positioning component 110 can be detachably connected to one of the first vehicle body 500 and the second vehicle body 600, that is, the first positioning component 110 can be detachably connected to the first vehicle body 500 alone (see...). FIGS. 1-3 Alternatively, the first positioning component 110 can be detachably connected to the second vehicle body 600 independently (see...). FIG. 4 and FIG. 5Specifically, when the first vehicle body 500 is connected to the first positioning component 110, the first positioning component 110 can rotate relative to the second positioning component 120 to face the first direction F1, and when the first positioning component 110 rotates relative to the second positioning component 120 to face the first direction F1, the first vehicle body 500 is restricted from detaching from the first positioning component 110 (the specific principle can be found below). In other words, when the first vehicle body 500 is connected to the first positioning component 110, the first positioning component 110 can rotate freely relative to the second positioning component 120, especially when rotating relative to the second positioning component 120 to face the first direction F1 (e.g., ...). FIG. 1 As shown in the diagram, when the first positioning component 110 rotates relative to the second positioning component 120 to face the first direction F1, the first vehicle body 500 connected to the first positioning component 110 cannot detach from the first positioning component 110. When the second vehicle body 600 is connected to the first positioning component 110, the first positioning component 110 is restricted from rotating relative to the second positioning component 120 to face the first direction F1 (the specific principle is explained below). It should be noted that, with normal vehicle driving as a reference, the first direction F1 refers to the front of the vehicle when the positioning component 100 is installed in the vehicle seat, which is equivalent to the direction facing the front of the vehicle. It should also be noted that, in this text, the orientation of the vehicle body 600 is consistent with the direction an infant or child faces when sitting on the vehicle body 600; the orientation of the first positioning component 110 relative to the second positioning component 120 is also consistent with the direction an infant or child faces when sitting on the vehicle body 600.

[0141] See FIGS. 7-10 In one embodiment, the first positioning component 110 includes a first housing 111 and a first connecting mechanism 112. The first connecting mechanism 112 is disposed in the first housing 111 and is used to detachably connect the first vehicle body 500 or the second vehicle body 600. The first connecting mechanism 112 has a locked state and an unlocked state. When the first connecting mechanism 112 is in the locked state, it is connected to the vehicle body; when the first connecting mechanism 112 is in the unlocked state, it is detached from the vehicle body.

[0142] Specifically, the bottom of the first vehicle body 500 and the second vehicle body 600 are provided with a locking member 610 (see...). FIG. 6 The engaging component 610 can be, for example, an engaging lever. Specifically, such as... FIGS. 11-13 As shown, the first connecting mechanism 112 includes a locking hook 1121 and a locking groove 1122 disposed in the first housing 111. The locking groove 1122 is used to accommodate the locking member 610 of the first carrier body 500 or the second carrier body 600, and the locking hook 1121 is pivotally connected to the first housing 111 and has a locked position (see...).FIG. 12 ) and release position (see FIG. 13 When the engaging hook 1121 is in the locked position, the engaging hook 1121 extends at least partially into the engaging slot 1122 to engage and lock with the engaging member 610 (see...). FIG. 36 and FIG. 37 ).

[0143] In one embodiment, such as FIG. 12 and FIG. 13 As shown, the engaging hook 1121 has a receiving groove 11212 adapted to the engaging member 610. The receiving groove 11212 is U-shaped and has a pushing wall 11213 adapted to be pushed by the engaging member 610 to drive the engaging hook 1121 to pivot from the unlocked position to the locked position. The first housing 111 has a first mounting cavity 1111. The groove wall of the slot 1122 has a through hole (not shown in the figure), which connects the first mounting cavity 1111 and the slot 1122. Specifically, as FIG. 17 and FIG. 18 As shown, a support frame 123 is provided in the first mounting cavity 1111, and the engaging hook 1121 is pivotally connected to the support frame 123 via a pivot shaft 124. When the engaging hook 1121 is in the locked position, the engaging hook 1121 at least partially passes through the through hole and extends into the slot 1122 to engage and lock with the engaging member 610. When the engaging hook 1121 is in the unlocked position, the engaging hook 1121 retracts from the slot 1122 through the through hole.

[0144] Specifically, in this embodiment, such as FIG. 6 and FIG. 7 As shown, both the bottom of the first carrier body 500 and the second carrier body 600 are provided with two engaging members 610 along their front-rear direction. The first housing 111 forms two rows of slots 1122, wherein each row of slots 1122 includes at least one slot 1122. Specifically, each row of slots 1122 includes two slots 1122. In other words, the first housing 111 forms four slots 1122, which are arranged in a rectangular pattern, and the distance between the two rows of slots 1122 arranged along the front and rear of the first positioning component 110 is equal to the distance between the two engaging members 610 of the first carrier body 500 or the second carrier body 600. Correspondingly, the first housing 111 is pivotally connected to four engaging hooks 1121, with each slot 1122 corresponding to one engaging hook 1121.

[0145] See FIGS. 15-18 In one embodiment, the positioning assembly 100 further includes a locking and retaining mechanism 150. The locking and retaining mechanism 150 is movably disposed within the first mounting cavity 1111. When the engaging hook 1121 is driven to the locked position, the locking and retaining mechanism 150 is used to lock the engaging hook 1121 in the locked position.

[0146] See also FIGS. 15-18In one embodiment, the locking and retaining mechanism 150 includes a first locking member 151. The first locking member 151 is movably disposed within the first mounting cavity 1111 and has a first position and a second position. Specifically, when the first positioning assembly 110 is oriented toward a first direction F1 or a third direction F3, the movement direction of the first locking member 151 is parallel to the first direction F1 or the third direction F3. More specifically, one of the first locking member 151 and the engaging hook 1121 is provided with a locking groove 1511 (see...). FIG. 13 The other has a locking portion 11211. In other words, when the first locking member 151 has a locking groove 1511, the locking hook 1121 has a locking portion 11211; or, when the locking hook 1121 has a locking groove 1511, the first locking member 151 has a locking portion 11211. Specifically, as... FIG. 12 and FIG. 13 As shown, in this embodiment, the engaging hook 1121 is provided with an engaging portion 11211, and the first locking member 151 is provided with a locking recess 1511. More specifically, when the first locking member 151 is in the first position, the engaging portion 11211 engages with the locking recess 1511 to lock the engaging hook 1121 in the locked position (see...). FIG. 12 When the first locking member 151 is in the second position, the engaging portion 11211 disengages from the locking groove 1511 to allow the engaging hook 1121 to switch between the locked and unlocked positions (see...). FIG. 13 ).

[0147] In one embodiment, such as FIG. 15 , FIG. 17 and FIG. 19 As shown, the locking and retaining mechanism 150 also includes a third reset member 152, which provides an elastic restoring force to the first locking member 151 to keep the first locking member 151 in a first position. The third reset member 152 is, for example, a spring. Thus, when the engaging hook 1121 pivots from the unlocked position to the locked position, the third reset member 152 can automatically switch the first locking member 151 to the first position, so that the locking groove 1511 of the first locking member 151 can engage with the engaging portion 11211 of the engaging hook 1121 to lock the engaging hook 1121 and keep the engaging hook 1121 in the locked position. This improves the stability and reliability of the first carrier body 500 or the second carrier body 600 being installed on the first positioning assembly 110.

[0148] In one embodiment, the first connecting mechanism 112 further includes a second reset member (not shown). The second reset member is used to hold the engaging hook 1121 in the unlocked position. The second reset member is, for example, a torsion spring, which is sleeved on the pivot 124 and abuts against the engaging hook 1121. Thus, when the first locking member 151 moves to the second position, the locking groove 1511 moves away from the engaging portion 11211, causing the engaging portion 11211 to disengage from the locking groove 1511. The engaging hook 1121 can then automatically rotate around the pivot 124 to be in the unlocked position, thereby facilitating smooth unlocking and reducing the risk of the engaging hook 1121 locking up.

[0149] The following is in conjunction with reference to [see also] FIG. 6 , FIG. 12 , FIG. 13 , FIG. 17 as well as FIG. 19 This will explain the working principle and process of the first connecting mechanism 112 according to an embodiment of this application.

[0150] When the first carrier body 500 or the second carrier body 600 is not installed to the first positioning assembly 110, the locking hook 1121 is held in the unlocked position by the action of the second reset member (see...). FIG. 13 At the same time, the engaging part 11211 retracts from the locking groove 1511.

[0151] When it is necessary to install the first vehicle body 500 or the second vehicle body 600 onto the first positioning assembly 110, that is, when it is necessary to connect the engaging member 610 to the first connecting mechanism 112, see [reference needed]. FIG. 12 , FIG. 13 , FIG. 17 as well as FIG. 18 The user can first place the engaging component 610 into the slot 1122, and make the engaging component 610 abut against the pushing wall 11213 of the receiving slot 11212. Then, push the pushing wall 11213 of the receiving slot 11212 downward to drive the engaging hook 1121 to rotate around the pivot 124 (by...). FIG. 13 Towards FIG. 12 (Switch), for example along FIG. 13 Rotate clockwise from the observation angle until the engaging hook 1121 extends into the slot 1122 and seals the opening of the slot 1122. At the same time, after the engaging hook 1121 rotates, the engaging part 11211 is aligned with the locking groove 1511. The third reset member 152 drives the first locking member 151 to move to the first position, so that the locking groove 1511 is engaged outside the engaging part 11211, and finally the engaging hook 1121 is kept in the locked position, achieving a stable connection with the engaging member 610.

[0152] When it is necessary to separate the first carrier body 500 or the second carrier body 600 from the first positioning assembly 110, that is, when it is necessary to disengage the engaging member 610 from the first connecting mechanism 112, the user can move the first locking member 151 from the first position to the second position. During this process, the locking groove 1511 gradually moves away from the engaging part 11211. During the movement, when the engaging part 11211 is completely disengaged from the locking groove 1511, the engaging hook 1121 automatically rotates around the pivot axis 124 under the action of the second reset member (from...). FIG. 12 Towards FIG. 13 (Switch), for example along FIG. 12 Rotate counterclockwise from the viewing angle to disengage the locking hook 1121 from the slot 1122, thereby opening the slot 1122.

[0153] See FIGS. 14-18 In one embodiment, the positioning component 100 further includes a first release member 160 movably disposed on the first positioning component 110 to facilitate user operation of the first locking member 151. The first release member 160 is driven to the first locking member 151. The first release member 160 can be operated to drive the first locking member 151 to move from a first position to a second position. In this way, the user can switch the first locking member 151 from the first position to the second position by operating the first release member 160.

[0154] See FIG. 18 In one embodiment, the first unlocking member 160 is provided with a driving ramp 161. The first locking member 151 is further provided with a driving part 1512, which is adapted to be pushed against by the driving ramp 161 and slide along the driving ramp 161, so that the first locking member 151 can switch between a first position and a second position. Specifically, the first unlocking member 160 moves in the first housing 111 along a fifth direction F5, which can be regarded as perpendicular to the bottom surface of the first housing 111.

[0155] See FIG. 17 and FIG. 18 This section briefly explains the cooperation relationship between the first unlocking member 160 and the first driving member 310. Specifically, when the first locking member 151 is in the first position, the driving part 1512 of the first locking member 151 abuts against the top end of the driving inclined surface 161 of the first unlocking member 160. FIG. 34 and FIG. 37 As shown, when the first unlocking member 160 is pushed upward along the fifth direction F5, under the guidance of the driving slope 161, the driving part 1512 gradually moves to the bottom end of the driving slope 161, thereby causing the first locking member 151 to move to the second position, so that the engaging part 11211 can disengage from the locking groove 1511.

[0156] See FIG. 15 and FIG. 17In one embodiment, the first housing 111 has an indicating mechanism 113, which indicates whether the locking hook 1121 is in a locked or unlocked position based on the relative position of the first locking member 151 and the first housing 111. Specifically, as FIG. 15 As shown, the first housing 111 includes a first top cover 1115 and a first bottom cover 1116 connected vertically, and the first top cover 1115 and the first bottom cover 1116 enclose a first mounting cavity 1111. A slot 1122 is formed in the first top cover 1115. Specifically, the indicating mechanism 113 includes a swing member 1131, a color block 1132, and an observation hole 1133. The swing member 1131 is pivotally connected to the side of the first bottom cover 1116 facing the first mounting cavity 1111 and forms a third pivot point Q3. One end of the swing member 1131 is pivotally connected to the first locking member 151, and the other end of the swing member 1131 is provided with a color block 1132 (e.g., green). The first top cover 1115 is provided with an observation hole 1133. As described above, when the first unlocking member 160 is operated (e.g., pushed upwards along the fifth direction F5), the first locking member 151 moves from the first position to the second position. At this time, the end of the swing member 1131 away from the color block 1132 moves with the first locking member 151, causing the entire swing member 1131 to pivot. This allows the end of the swing member 1131 with the color block 1132 to move. Thus, the user can determine the position of the first locking member 151 by observing whether the color block 1132 is displayed at the observation hole 1133, and thus infer the position of the locking hook 1121. Specifically, in this embodiment, when the first locking member 151 is in the first position, the color block 1132 is opposite to the observation hole 1133, and the user can see the color block 1132 through the observation hole 1133. However, when the first locking member 151 is in the second position, the color block 1132 is misaligned with the observation hole 1133, and the user cannot see the color block 1132 through the observation hole 1133. Therefore, when color block 1132 is visible through observation hole 1133, it indicates that locking hook 1121 is in the locked position; when color block 1132 is not visible through observation hole 1133, it indicates that locking hook 1121 is in the unlocked position. Of course, in other embodiments, when the first locking member 151 is in the first position, color block 1132 is misaligned with observation hole 1133, and the user cannot see color block 1132 through observation hole 1133. However, when the first locking member 151 is in the second position, color block 1132 is opposite to observation hole 1133, and the user can see color block 1132 through observation hole 1133. Alternatively, each swinging component 1131 may be provided with two different colored blocks 1132 (e.g., red and green), with the two colored blocks 1132 corresponding to the first locking component 151 being in the first and second positions, respectively. The user can observe the color of the colored block 1132 through the observation hole 1133 to determine whether the locking hook 1121 is in the locked or unlocked position.

[0157] SeeFIG. 7 , FIG. 8 , FIG. 22 as well as FIG. 23 In one embodiment, the positioning component 100 further includes a rotational movement mechanism 190. The first positioning component 110 can rotate relative to the second positioning component 120 via the rotational movement mechanism 190. Specifically, the following description is based on the example of a child sitting inside the first vehicle body 500. When the positioning component 100 is installed in a car seat, the first vehicle body 500 is installed in the first positioning component 110, and the child is sitting inside the first vehicle body 500, under the action of the rotational movement mechanism 190, the first positioning component 110 (or the first vehicle body 500) can be oriented towards the first direction F1 (see...). FIG. 7 Or ride facing away from the first direction F1 (i.e., the third direction F3) (see FIG. 10 Of course, under the action of the rotating moving mechanism 190, the first positioning component 110 (or the first carrier body 500) can also be oriented towards the second direction F2 (see...). FIG. 8 ) or fourth direction F4 (see FIG. 9 This makes it convenient for users to place children inside or take children out of the first vehicle body 500.

[0158] It should be noted that the first direction F1 and the third direction F3 are parallel and opposite in direction. In this embodiment, the third direction F3 can be regarded as the direction towards the rear of the car, which is equivalent to the rear of the car in the normal driving direction. The second direction F2 and the fourth direction F4 are parallel and opposite in direction. They can be regarded as the left and right directions when the car is driving normally. The second direction F2 is towards the left door of the car, and the fourth direction F4 is towards the right door of the car.

[0159] To further improve the convenience for users to place or retrieve children when the first vehicle body 500 is facing the second direction F2 or the fourth direction F4, in one embodiment, the first positioning component 110 is slidably connected to the second positioning component 120 via a rotational movement mechanism 190. The first positioning component 110 moves and turns simultaneously relative to the second positioning component 120 as it slides. Thus, for example, when the user switches the first vehicle body 500 from facing the first direction F1 to facing the second direction F2, the first vehicle body 500 can rotate relative to the second positioning component 120 to change its orientation, and can also be pulled outward relative to the second positioning component 120 to be closer to the door, making it easier to pick up or place the child. Compared to traditional rotational mechanisms, this rotational movement mechanism 190 allows the first positioning component 110 to rotate relative to the second positioning component 120 while also moving laterally, eliminating the need for a turn followed by a lateral pull-out operation as in traditional methods, thereby improving operational convenience.

[0160] In one embodiment, such as FIG. 14 as well as FIGS. 22-24 As shown, the rotary moving mechanism 190 includes a first track 191, a second track 192, a first slider 194, and a second slider 195. The first track 191 extends along a first direction F1, and the second track 192 intersects the first track 191. The intersection of the first track 191 and the second track 192 forms an intersection point 193. Specifically, the second track 192 is perpendicularly intersecting the first track 191, which is equivalent to the second track 192 extending towards a second direction F2. More specifically, both the first track 191 and the second track 192 are divided into two segments by the intersection 193. One segment of the first track 191 (referred to as the first segment) can be considered to extend from the intersection 193 towards a first direction F1, and the other segment of the first track 191 (referred to as the second segment) can be considered to extend from the intersection 193 towards a third direction F3. One segment of the second track 192 (referred to as the third segment) can be considered to extend from the intersection 193 towards a second direction F2, and the other segment of the second track 192 (referred to as the fourth segment) can be considered to extend from the intersection 193 towards a fourth direction F4. In this embodiment, the lengths of the four segments are equal. A first slider 194 and a second slider 195 are spaced apart from each other in the first positioning assembly 110. The first slider 194 is used to slide within the second track 192, and the second slider 195 is used to slide within the first track 191.

[0161] See FIG. 14 and FIG. 22 In one embodiment, the distance R1 between the intersection point 193 and the two ends of the first track 191 is greater than or equal to the distance R3 between the first slider 194 and the second slider 195, i.e., R1 ≥ R3. The distance R2 between the intersection point 193 and the two ends of the second track 192 is greater than or equal to the distance R3 between the first slider 194 and the second slider 195, i.e., R2 ≥ R3. Specifically, in this embodiment, R1 = R2 = R3.

[0162] Specifically, when the first slider 194 is located at the intersection 193, the second slider 195 is located within the first track 191, and the first positioning component 110 faces or is away from the first direction F1 relative to the second positioning component 120, which is equivalent to the first positioning component 110 being positioned relative to the second positioning component 120 facing the first direction F1 (see...). FIG. 7 Alternatively, the first positioning component 110 may be positioned relative to the second positioning component 120 toward a third direction F3 (see...). FIG. 10When the second slider 195 is located at intersection 193, the first slider 194 is located within the second track 192, and the first positioning component 110 is positioned relative to the second positioning component 120 facing or away from the second direction F2, that is, the first positioning component 110 can be positioned relative to the second positioning component 120 facing the second direction F2 (see...). FIG. 8 Alternatively, the first positioning component 110 may be positioned relative to the second positioning component 120 in a fourth direction F4 (see...). FIG. 9 In some non-limiting embodiments, the second slider 195 is closer to the front of the first positioning component than the first slider 194. In some non-limiting embodiments, the first positioning component 110 is circular, and the first slider 194 is located at the center of the first positioning component 110. When the first positioning component 110 is oriented relative to the second positioning component 120 toward the first direction F1 or the third direction F3, the intersection point 193 overlaps with the center of the first positioning component 110 in a direction perpendicular to the plane containing the first track 191 and the second track 192.

[0163] The following will combine FIG. 14 as well as FIGS. 21-23 This section briefly explains the principle and process by which the first positioning component 110 simultaneously performs displacement and steering through the sliding of the rotational moving mechanism 190 relative to the second positioning component 120.

[0164] In one embodiment, please refer to [the following text is also included]: FIG. 24 When the first positioning component 110 is positioned relative to the second positioning component 120 in the first direction F1, the first slider 194 is located at the intersection 193, i.e., point M, and the second slider 195 is located at point N of the first track 191.

[0165] When the user needs to switch the setting of the first positioning component 110 relative to the second positioning component 120 from facing the first direction F1 to facing the second direction F2, it is equivalent to changing the setting of the first positioning component 110 relative to the second positioning component 120 from facing forward to facing left (from...). FIG. 7 Towards FIG. 8(Switch). The user can pull the first positioning component 110 to the left, and while pulling, the first positioning component 110 tends to rotate counterclockwise around the first slider 194. This allows the first slider 194 to move from point M to point M' within the second track 192, while simultaneously causing the second slider 195 to move synchronously from point N to point N' within the first track 191. During this process, the first positioning component 110 gradually begins to rotate relative to the second positioning component 120, and can also move laterally (specifically along the left side) relative to the second positioning component 120. When the first slider 194 moves to M', the second slider 195 is located at point N', i.e., intersection 193. At this time, the position of the first positioning component 110 relative to the second positioning component 120 is as follows: FIG. 8 As shown. It should be noted that the orientation and position of the first positioning component 110 relative to the second positioning component 120 are as follows: FIG. 7 state to FIG. 8 The process of the state is reversible, that is, the orientation of the first positioning component 110 relative to the second positioning component 120 can also be switched from being oriented towards the second direction F2 to being oriented towards the first direction F1.

[0166] When the user needs to switch the setting of the first positioning component 110 relative to the second positioning component 120 from facing the first direction F1 to facing the fourth direction F4, it is equivalent to changing the setting of the first positioning component 110 relative to the second positioning component 120 from facing forward to facing right (from...). FIG. 7 Towards FIG. 9 (Switch). The user can pull the first positioning component 110 to the right, and while pulling, the first positioning component 110 tends to rotate clockwise around the first slider 194. This allows the first slider 194 to move from point M to point M” within the second track 192, while simultaneously causing the second slider 195 to move synchronously from point N to point N' within the first track 191. During this process, the first positioning component 110 gradually begins to rotate relative to the second positioning component 120, and can also move laterally (specifically along the right side) relative to the second positioning component 120. When the first slider 194 moves to M”, the second slider 195 is located at point N', i.e., intersection 193. At this time, the position of the first positioning component 110 relative to the second positioning component 120 is as follows: FIG. 9 As shown. It should be noted that the orientation and position of the first positioning component 110 relative to the second positioning component 120 are as follows: FIG. 7 state to FIG. 9 The process of the state is reversible, that is, the orientation of the first positioning component 110 relative to the second positioning component 120 can also be switched from being oriented towards the fourth direction F4 to being oriented towards the first direction F1.

[0167] See FIG. 8and FIG. 10 The user can switch the orientation of the first positioning component 110 relative to the second positioning component 120 from facing the second direction F2 to facing the third direction F3; or, see [link to relevant documentation]. FIG. 9 and FIG. 10 The user can switch the first positioning component 110 relative to the second positioning component 120 from facing the fourth direction (F4) to facing the third direction (F3). The following explanation will focus on the setting of the first positioning component 110 relative to the second positioning component 120 from facing the second direction (F2) to facing the third direction (F3). Specifically, the user can pull the first positioning component 110, and while pulling, the first positioning component 110 tends to rotate counterclockwise around the first slider 194. This allows the second slider 195 to move from point N' to point N” within the first track 191, while simultaneously causing the first slider 194 to move synchronously from point M' to point M within the second track 192. During this process, the first positioning component 110 gradually begins to rotate relative to the second positioning component 120, and its rear end can move relative to the second positioning component 120 in the first direction F1. When the second slider 195 moves to N”, the first slider 194 is located at point M, i.e., intersection 193. At this time, the position of the first positioning component 110 relative to the second positioning component 120 is as follows: FIG. 10 As shown. It should be noted that the orientation and position of the first positioning component 110 relative to the second positioning component 120 are as follows: FIG. 8 state to FIG. 10 The process of the state is reversible, that is, the orientation of the first positioning component 110 relative to the second positioning component 120 can also be switched from being oriented toward the third direction F3 to being oriented toward the second direction F2.

[0168] When the user needs to switch the orientation of the first positioning component 110 relative to the second positioning component 120 from facing a third direction (F3) to facing a fourth direction (F4), it is equivalent to changing the orientation of the first positioning component 110 relative to the second positioning component 120 from rearward to rightward (from...). FIG. 10 Towards FIG. 9 (Switch). Directly pull the first positioning component 110 and make it tend to rotate counterclockwise around the first slider 194. This allows the first slider 194 to move from point M to point M” within the second track 192, and the second slider 195 to move synchronously from point N” to point N’ within the first track 191. Similarly, when the user needs to switch the setting of the first positioning component 110 relative to the second positioning component 120 from facing the fourth direction F4 to facing the first direction F1, it is equivalent to changing the setting of the first positioning component 110 relative to the second positioning component 120 from facing to the right to facing forward (from...). FIG. 9 TowardsFIG. 7 (Switch). Directly pull the first positioning component 110 and make the first positioning component 110 tend to rotate counterclockwise around the first slider 194 as the center. In this way, the second slider 195 can move from point N' to point N in the first track 191, and the first slider 194 can move synchronously from point M” to point M in the second track 192.

[0169] In this embodiment, the shape of the projection of the first positioning component 110 onto the second positioning component 120 is symmetrical about the rotational axis of the first positioning component 110. When the first positioning component 110 rotates relative to the second positioning component 120 to face the first direction F1, the overlapping area and range of the two are the same as when the first positioning component 110 rotates relative to the second positioning component 120 to face the third direction F3. In this embodiment, the shape of the projection of the first positioning component 110 onto the second positioning component 120 is circular. In other embodiments, the shape of the projection of the first positioning component 110 onto the second positioning component 120 can also be other centrally symmetrical figures symmetrical about the rotational axis of the first positioning component 110.

[0170] See FIGS. 23-28 In one embodiment, the second positioning component 120 includes a second housing 121, which has a second mounting cavity 1211 communicating with the first track 191 and the second track 192. Specifically, the second housing 121 includes a second top cover 1212 and a second bottom cover 1213 connected to each other. The second mounting cavity 1211 is formed between the second top cover 1212 and the second bottom cover 1213. In this embodiment, the second top cover 1212 and the second bottom cover 1213 are arranged vertically, and both the second top cover 1212 and the second bottom cover 1213 have a shell structure. The second top cover 1212 and the second bottom cover 1213 are fitted together to form the second mounting cavity 1211. The first track 191 and the second track 192 are both formed on the second top cover 1212. Of course, in some other embodiments not shown, the second bottom cover 1213 may be a shell structure with an open second mounting cavity 1211 inside, and the second top cover 1212 may be a flat plate structure covering the opening of the second mounting cavity 1211. The second top cover 1212 may be connected to the second bottom cover 1213 by means of screws or other connecting parts.

[0171] See FIG. 28 In one embodiment, the rotary moving mechanism 190 further includes a first slider 196 and a second slider 197. The first slider 196 is located within the second mounting cavity 1211 and is connected to the first sliding member 194 (see image). FIG. 29 and FIG. 30The first slider 196 is stopped by the inner wall of the second mounting cavity 1211 to limit the first slider 194 within the second track 192. The second slider 197 is located within the second mounting cavity 1211 and is connected to the second slider 195 (see...). FIG. 30 The second slider 197 is stopped by the inner wall of the second mounting cavity 1211 to limit the second sliding member 195 within the first track 191. This prevents the first positioning component 110 from disengaging from the second positioning component 120 when sliding relative to it.

[0172] Specifically, the second mounting cavity 1211 further includes a first channel 1216 and a second channel 1217. The first channel 1216 communicates with the first track 191, and the second slider 197 can slide along the first channel 1216. The second slider 195 can slide along the first track 191. The second channel 1217 communicates with the second track 192, and the first slider 196 can slide along the second channel 1217. The first slider 194 can slide along the second track 192. The length direction of the first channel 1216 intersects the length direction of the second channel 1217. More specifically, in this embodiment, the length direction of the first channel 1216 (corresponding to the dimension of the first direction F1 or the third direction F3 in this embodiment) intersects perpendicularly with the length direction of the second channel 1217 (corresponding to the dimension of the second direction F2 or the fourth direction F4 in this embodiment). The width direction of the first channel 1216 intersects the width direction of the second channel 1217. More specifically, in this embodiment, the width direction of the first channel 1216 (corresponding to the dimension of the second direction F2 or the fourth direction F4 in this embodiment) intersects perpendicularly with the width direction of the second channel 1217 (corresponding to the dimension of the first direction F1 or the third direction F3 in this embodiment). The dimension of the second slider 197 along the length direction of the first channel 1216 is greater than the width of the second channel 1217, and the dimension of the first slider 196 along the length direction of the second channel 1217 is greater than the width of the first channel 1216. This restricts the sliding of the first slider 194 on the second track 192, preventing the first slider 194 from sliding along the first track 191; it also restricts the sliding of the second slider 195 on the first track 191, preventing the second slider 195 from sliding along the second track 192. The first channel 1216 and the second channel 1217 are connected. In this embodiment, the length of the first channel 1216 is greater than the length of the first track 191, and the length of the second channel 1217 is greater than the length of the second track 192. In this embodiment, two opposing walls (or first walls) extend from the lower surface of the second top cover 1212 toward the second mounting cavity 1211, forming a first channel 1216 between the two walls. Two more opposing walls (or second walls) extend from the lower surface of the second top cover 1212 toward the second mounting cavity 1211, forming a second channel 1217 between the two walls. In some embodiments, the wall forming the first channel 1216 may also extend from the second bottom cover 1213, and the wall forming the second channel 1217 may also extend from the second bottom cover 1213; this is not limited here.

[0173] Specifically, such as FIG. 30 , FIG. 34 and FIG. 37As shown, the second slider 197 has a groove 1971 on the side facing the second top cover 1212, and a sliding wheel 198 is installed in the groove 1971. Part of the wheel surface of the sliding wheel 198 protrudes from the groove 1971 and slides against the wall surface of the second top cover 1212 where the first track 191 is located. By setting the sliding wheel 198, the smoothness of the movement of the second slider 195 within the first track 191 can be improved. More specifically, the second slider 197 has four grooves 1971, and a sliding wheel 198 is installed in each groove 1971. Of course, the number of grooves 1971 and sliding wheels 198 in the second track 192 is not limited to four; for example, it can be one, two, three, five, or more. More specifically, in this embodiment, the first slider 196 can be similar to the second slider 197, also having grooves 1971 and sliding wheels 198. The specific positions and numbers can be referenced to the grooves 1971 and sliding wheels 198 of the second slider 197. As described above, the first positioning component 110 can rotate freely relative to the second positioning component 120 under the action of the rotational movement mechanism 190. That is, the first positioning component 110 can rotate relative to the second positioning component 120 to any one of the following directions: first direction F1, second direction F2, third direction F3, and fourth direction F4. Therefore, when the first vehicle body 500 (e.g., a child safety seat) is connected to the first positioning component 110, the first vehicle body 500 can also move with the first positioning component 110 to any one of the following directions: first direction F1, second direction F2, third direction F3, and fourth direction F4. However, when the second vehicle body 600 (e.g., an infant safety carrier) is connected to the first positioning component 110, considering the safety of infants and young children, the second vehicle body 600 can move with the first positioning component 110 to any one of the following directions: second direction F2, third direction F3, and fourth direction F4, but cannot rotate with the first positioning component 110 to move towards the first direction F1. However, when the first positioning component 110 is connected to the first vehicle body 500 and the first positioning component 110 faces the first direction F1, if the user directly detaches the first vehicle body 500 from the first positioning component 110 and connects the second vehicle body 600 to the first positioning component 110, the second vehicle body 600 will face the first direction F1, posing a safety hazard. Therefore, to prevent the user from unknowingly detaching the first vehicle body 500, which faces the first direction F1, from the first positioning component 110, the positioning component 100 in this application also includes a first limiting mechanism 140. This first limiting mechanism 140 is disposed between the first positioning component 110 and the second positioning component 120, and is used to selectively allow or restrict the first vehicle body 500 from detaching from the first positioning component 110.Specifically, when the first positioning component 110 rotates relative to the second positioning component 120 to face the first direction F1, the first limiting mechanism 140 is used to prevent the first vehicle body 500 from detaching from the first positioning component 110; while when the first positioning component 110 rotates relative to the second positioning component 120 to face the second direction F2, the third direction F3, or the fourth direction F4, the first limiting mechanism 140 allows the first vehicle body 500 to detach from the first positioning component 110. Therefore, when the user needs to remove the first vehicle body 500 from the first positioning component 110, the first positioning component 110 needs to be rotated to a direction other than facing the first direction F1, which is equivalent to facing the second direction F2, the third direction F3, or the fourth direction F4.

[0174] The working principle of the first limiting mechanism 140 will be briefly explained below with reference to the diagram.

[0175] See FIG. 15 , FIG. 16 as well as FIG. 22 In one embodiment, a first limiting mechanism 140 is disposed between a first positioning component 110 and a second positioning component 120, for selectively allowing or restricting the first connecting mechanism 112 to switch between a locked state and an unlocked state. In this embodiment, when the first positioning component 110 is used to connect to the first carrier body 500 and is oriented in the first direction F1, the first limiting mechanism 140 enters the movement path of the locking and retaining mechanism 150, restricting the movement of the locking and retaining mechanism 150, thereby restricting the first connecting mechanism 112 from switching from the locked state to the unlocked state.

[0176] Specifically, the first limiting mechanism 140 includes a first limiting groove 141 and a first limiting member 142. The first limiting groove 141 is disposed on the side of the second positioning assembly 120 facing the first positioning assembly 110. Specifically, the first limiting groove 141 is disposed on the second top cover 1212 of the second housing 121. The first limiting member 142 is movably disposed on the first positioning assembly 110 and can be inserted into or retracted from the first limiting groove 141. Specifically, as... FIG. 29 and FIG. 30 As shown, the first bottom cover 1116 of the first housing 111 is provided with a first limiting hole 1112, which communicates with the first mounting cavity 1111. The first limiting member 142 is movably disposed in the first mounting cavity 1111, and at least part of the first limiting member 142 can extend out of the first mounting cavity 1111 through the first limiting hole 1112 (see...). FIG. 34Specifically, when the first limiting member 142 extends out of the first mounting cavity 1111 through the first limiting hole 1112 and inserts into the first limiting groove 141, the first limiting member 142 allows the first connecting mechanism 112 to switch to the unlocked state, and the first vehicle body 500 is allowed to detach from the first positioning component 110; when the first limiting member 142 retracts from the first limiting groove 141, the first limiting member 142 restricts the first connecting mechanism 112 from switching to the unlocked state, and the first vehicle body 500 is restricted from detaching from the first positioning component 110. Specifically, when the first positioning component 110 rotates relative to the second positioning component 120 to face the first direction F1, the first limiting member 142 retracts from the first limiting groove 141. This prevents the first vehicle body 500 from being removed from the first positioning component 110 when facing the first direction F1.

[0177] Specifically, the first positioning component 110 has a rotation axis, and the first limiting member 142 is offset from the rotation axis. In this embodiment, a straight line passing through the rotation axis and perpendicular to the first direction F1 is defined as the reference line. When the first positioning component 110 is oriented towards the first direction F1, the first limiting member 142 and the first limiting groove 141 are misaligned and located on both sides of the reference line. More specifically, in this embodiment, when the first positioning component 110 has a generally circular shape, the aforementioned rotation axis can be regarded as the center of the circle of the first positioning component 110. Specifically, the first limiting groove 141 is a semi-circular groove (see...). FIG. 22 The radius of the semi-circular groove is the distance between the centers of the first limiting member 142 and the first positioning component 110. More specifically, the opening of the semi-circular groove faces the third direction F3. When the first positioning component 110 rotates relative to the second positioning component 120 to face away from the first direction F1 (i.e., towards the third direction F3), the first limiting member 142 is located at the midpoint of the first limiting groove 141. It should be noted that in this embodiment, the first sliding member 194 is located at the rotation axis of the first positioning component 110, and the second track 192 provides displacement for the first sliding member 194. Therefore, the second track 192 in this embodiment is also a straight line trajectory of the displacement of the rotation axis of the first positioning component 110. Of course, in other embodiments, the first positioning component 110 can be other symmetrical shapes (e.g., ellipse, rectangle, etc.), and the rotation axis can be the geometric center of the first positioning component 110 or a position deviating from the geometric center; or, the first positioning component 110 can also be an asymmetrical shape, and the rotation axis can be set according to actual needs.

[0178] In this embodiment, the radius of the first limiting groove 141 is equal to half the distance between the first sliding member 194 and the second sliding member 195, or in other words, the radius of the first limiting groove 141 is equal to one-quarter of the distance between the first track 191 and the second track 192. The first limiting member 142 is located at the midpoint between the first sliding member 194 and the second sliding member 195. The center of the first limiting groove 141 is located at the intersection point 193 between the first track 191 and the second track 192. The first limiting groove 141 and the second track 192 have two intersection points, which are located at the midpoint of the third groove segment and the midpoint of the fourth groove segment of the second track 192, respectively. The first limiting groove 141 and the second track 192 have one intersection point, which is located at the midpoint of the first groove segment of the first track 191. Of course, in other embodiments, the first limiting groove 141 can also be of other shapes, such as elliptical, and the first limiting member 142 can be offset from the midpoint between the first sliding member 194 and the second sliding member 195.

[0179] As described above, the first vehicle body 500 is detachably connected to the first housing 111 via the first connecting mechanism 112. Specifically, when the first locking member 151 is in the first position, the locking hook 1121 is in the locked position, and the first vehicle body 500 cannot be removed from the first connecting mechanism 112. When the first locking member 151 is in the second position, the locking hook 1121 is in the unlocked position, and the first vehicle body 500 can be removed from the first connecting mechanism 112. Therefore, the position of the first locking member 151 is related to whether the first vehicle body 500 can be removed from the first positioning assembly 110. Specifically, when the first locking member 151 is in the first position, the first vehicle body 500 cannot be removed from the first positioning assembly 110; when the first locking member 151 is in the second position, the first vehicle body 500 can be removed from the first positioning assembly 110. In this embodiment, when the first limiting member 142 retracts from the first limiting groove 141, the first limiting member 142 is located in the movement path of the first locking member 151. This restricts the first locking member 151 from moving from the first position to the second position, thereby restricting the locking hook 1121 from switching from the locked position to the unlocked position, and keeping the locking hook 1121 in the locked position. This, in turn, seals the opening of the slot 1122, and the locking member 610 of the first vehicle body 500 cannot be removed from the slot 1122, which is equivalent to the first vehicle body 500 not being removed from the first positioning component 110. When the first limiting member 142 is inserted into the first limiting groove 141, the first limiting member 142 deviates from the moving path of the first locking member 151. This allows the first locking member 151 to move so that the locking hook 1121 switches from the locked position to the unlocked position, thereby opening the slot of the slot 1122. The locking member 610 of the first vehicle body 500 can be removed from the slot 1122 to complete the removal of the first vehicle body 500 from the first positioning component 110.

[0180] Combination FIG. 18 and FIG. 30 In this embodiment, as described above, when the first carrier body 500 is connected to the first positioning member 110, and the first positioning member 110 faces the first direction F1, the first limiting member 142 and the first limiting groove 141 are misaligned and located on both sides of the reference line. At this time, the first limiting member 142 abuts against the second top cover 1212 of the second housing 121. The first limiting member 142 is located in the movement path of the first locking member 151. Therefore, the movement of the first locking member 151 is blocked and it remains in the first position, ultimately preventing the first carrier body 500 from being removed from the first positioning member 110. FIG. 18 and FIG. 34When the first vehicle body 500 is connected to the first positioning component 110, and the first positioning component 110 gradually rotates relative to the second positioning component 120 from the first direction F1 to the second direction F2 or the fourth direction F4, the first limiting member 142 rotates with the first positioning component 110 and gradually aligns with the first limiting groove 141. When the first limiting member 142 aligns with the first limiting groove 141, the first limiting member 142 can move down to insert into the first limiting groove 141. In this way, the first limiting member 142 can deviate from the movement path of the first locking member 151, thereby allowing the first locking member 151 to move to the second position, so as to remove the first vehicle body 500 from the first positioning component 110.

[0181] It should be noted that when the first positioning component 110 is facing the second direction F2 or the fourth direction F4, the first limiting member 142 is opposite to the end of the first limiting groove 141 and inserted at the end; when the first positioning component 110 switches from the second direction F2 or the fourth direction F4 to the third direction F3, the first limiting member 142 will move to the midpoint of the first limiting groove 141 within the semi-circular groove.

[0182] See FIG. 30 , FIG. 34 as well as FIG. 37 In one embodiment, the first limiting member 142 has a sliding inclined surface 1421 at one end facing the second positioning component 120. The sliding inclined surface 1421 can push against the groove walls at both ends of the first limiting groove 141, so that the first limiting member 142 moves away from the second positioning component 120 and out of the first limiting groove 141. This allows the first positioning component 110 to automatically insert into or retract from the first limiting groove 141 according to the orientation of the first positioning component 110 when sliding relative to the second positioning component 120.

[0183] See also FIG. 16 , FIG. 18 as well as FIG. 30 In one embodiment, the first limiting mechanism 140 further includes a first reset member 143, which provides an elastic restoring force to the first limiting member 142 to drive the first limiting member 142 into the first limiting groove 141. Specifically, as FIG. 34 and FIG. 37As shown, the first mounting cavity 1111 contains a support rod 116 and two support plates 115, which are located on opposite sides of the first limiting hole 1112. The first limiting member 142 has a strip-shaped hole 1422, through which the support rod 116 passes and is connected to the two support plates 115 respectively. More specifically, the first limiting member 142 has a cavity inside, and the first reset member 143 is, for example, a spring, which is housed in the cavity, with both ends of the spring abutting against the bottom walls of the cavity of the support rod 116 and the first limiting member 142 respectively (see...). FIG. 15 , FIG. 16 as well as FIG. 22 When the first limiting member 142 retracts from the first limiting groove 141, the first limiting member 142 abuts against the surface of the second positioning component 120, causing the first reset member 143 to be squeezed and in a compressed state; when the first limiting member 142 moves above the first limiting groove 141, the first reset member 143 resets to drive the first limiting member 142 to move down and insert into the first limiting groove 141.

[0184] As described above, the first positioning component 110 can rotate freely relative to the second positioning component 120 under the action of the rotating moving mechanism 190. Therefore, the vehicle body connected to the first positioning component 110 can also rotate freely with the first positioning component 110. However, considering the safety of passengers, some parts of the vehicle body, such as the second vehicle body 600 (e.g., an infant safety carrier), cannot be positioned facing forward (i.e., facing the first direction F1). In other words, when the first positioning component 110 is connected to the second vehicle body 600, the first positioning component 110 is restricted to facing the first direction F1, which is equivalent to being restricted to facing the front of the car. In this embodiment, the positioning component 100 further includes a second limiting mechanism 170 and a linkage mechanism 180 to restrict the first positioning component 110 from oriented toward the first direction F1 when the second carrier body 600 is connected to the first positioning component 110. The second limiting mechanism 170 limits the angular range of rotation of the first positioning component 110 relative to the second positioning component 120, and the linkage mechanism 180 ensures that the second limiting mechanism 170 only functions when the second carrier body 600 is connected to the first positioning component 110. The operating principles of the second limiting mechanism 170 and the linkage mechanism 180 are detailed below.

[0185] The second limiting mechanism 170 has a first state and a second state. When the second limiting mechanism 170 is in the first state, it restricts the first positioning component 110 from rotating relative to the second positioning component 120 toward the first direction F1. When the second limiting mechanism 170 is in the second state, it allows the first positioning component 110 to rotate relative to the second positioning component 120 toward the first direction F1.

[0186] Specifically, the second limiting mechanism 170 is disposed between the first positioning component 110 and the second positioning component 120. The second limiting mechanism 170 is used to limit the angular range of rotation of the first positioning component 110 relative to the second positioning component 120 when the second vehicle body 600 is connected to the first positioning component 110, so as to prevent the second vehicle body 600 from rotating toward the first direction F1.

[0187] See FIG. 29 , FIG. 30 as well as FIG. 37 In one embodiment, the second limiting mechanism 170 includes a second limiting groove 171 and a second limiting member 172. The second limiting groove 171 can be disposed on one of the second positioning component 120 and the first positioning component 110, while the second limiting member 172 is movably disposed on the other of the two components, and the second limiting member 172 can be inserted into or retracted from the second limiting groove 171. For example, when the second limiting groove 171 is disposed on the first positioning component 110, the second limiting member 172 is movably disposed on the second positioning component 120. Alternatively, in this embodiment, the second limiting groove 171 is disposed on the second positioning component 120, and the first limiting member 172 is movably disposed on the first positioning component 110. More specifically, in this embodiment, the second limiting groove 171 is disposed on the side of the second positioning component 120 facing the first positioning component 110. Specifically, as... FIGS. 15-18 and FIG. 22 As shown, the first bottom cover 1116 of the first housing 111 is provided with a second limiting hole 1113, which communicates with the first mounting cavity 1111. The second limiting member 172 is movably disposed in the first mounting cavity 1111, and at least part of the second limiting member 172 can extend out of the first mounting cavity 1111 through the second limiting hole 1113 (see...). FIG. 22Specifically, when the second limiting member 172 is inserted into the second limiting groove 171, the first positioning component 110 is restricted to rotate relative to the second positioning component 120 toward the first direction F1 (which can be considered as the second limiting mechanism 170 being in the first state). When the second limiting member 172 retracts from the second limiting groove 171, the first positioning component 110 is allowed to rotate relative to the second positioning component 120 toward the first direction F1 (which can be considered as the second limiting mechanism 170 being in the second state). Specifically, when the first carrier body 500 is connected to the first positioning component 110, the second limiting member 172 retracts from the second limiting groove 171 and remains in the retracted state, thus enabling the first positioning component 110 to rotate toward the first direction F1. In this embodiment, the first positioning component 110 can rotate 360° relative to the second positioning component 120. When the second carrier body 600 is connected to the first positioning component 110, the second limiting member 172 is inserted into the second limiting groove 171. The length of the second limiting groove 171 limits the range of movement of the second limiting member 172, so that the first positioning component 110 cannot rotate to face the first direction F1.

[0188] In one embodiment, the second limiting member 172, like the first limiting member 142, is offset from the rotation axis of the first positioning assembly 110. Furthermore, when the first positioning assembly 110 is oriented towards the first direction F1, the second limiting member 172 and the second limiting groove 171 are misaligned and located on opposite sides of the reference line. Specifically, as... FIGS. 15-19 The second limiting groove 171 is a semi-circular groove (see...) FIGS. 15-19 The radius of the semi-circular groove is the distance between the centers of the second limiting member 172 and the first positioning assembly 110. More specifically, the opening of the semi-circular groove faces the third direction F3. When the first positioning assembly 110 rotates relative to the second positioning assembly 120 to face away from the first direction F1, the second limiting member 172 is located at the midpoint of the second limiting groove 171. When the first positioning assembly 110 rotates relative to the second positioning assembly 120 to the second direction F2 and the fourth direction F4 respectively, the second limiting member 172 is located at... FIG. 16 At the two ends of the second limiting groove 171.

[0189] In this embodiment, the radius of the second limiting groove 171 is equal to half the distance between the first slider 194 and the second slider 195, or in other words, the radius of the second limiting groove 171 is equal to one-quarter of the distance between the first track and the second track. The second limiting member 172 is located at the midpoint between the first slider 194 and the second slider 195. The center of the second limiting groove 171 is located at the intersection 193 between the first track and the second track. The second limiting groove 171 and the second track 192 have two intersection points, which are located at the midpoint of the third groove segment and the midpoint of the fourth groove segment of the second track 192, respectively. The second limiting groove 171 and the second track 192 have one intersection point, which is located at the midpoint of the first groove segment of the first track 191. Of course, in other embodiments, the first limiting groove 171 may also be of other shapes, such as elliptical, and the second limiting member 172 may be offset from the midpoint between the first slider 194 and the second slider 195.

[0190] See FIG. 16 In one embodiment, the linkage mechanism 180 is disposed within the first mounting cavity 1111 and is used for driving connection with the second limiting member 172. The linkage mechanism 180 can drive the second limiting member 172 to retract or insert into the second limiting groove 171. In this way, the state of the second limiting member 172 can be controlled by the linkage mechanism 180.

[0191] See also FIGS. 15-19 In one embodiment, the linkage mechanism 180 includes a linkage member 181, which is movably disposed in the first mounting cavity 1111 and has a third position and a fourth position. Specifically, the movement direction of the linkage member 181 is parallel to the first direction F1 or the third direction F3. Specifically, the first end of the linkage member 181 is provided with a first inclined groove 1811 (see...). FIG. 17 The second limiting member 172 has one end facing away from the second limiting groove 171 slidably disposed within the first inclined groove 1811, while the other end of the second limiting member 172 near the second limiting groove 171 can pass through the second limiting hole 1113 and be inserted into the second limiting groove 171. More specifically, when the linkage member 181 moves to the third position, the second limiting member 172 is inserted into the second limiting groove 171; when the linkage member 181 moves to the fourth position, the second limiting member 172 retracts from the second limiting groove 171. In other words, when the linkage member 181 switches between the third and fourth positions, the second limiting member 172 can be inserted into or retracted from the second limiting groove 171 under the driving action of the first inclined groove 1811. Thus, the insertion or retraction of the second limiting member 172 into the second limiting groove 171 can be controlled by changing the position of the linkage member 181.

[0192] It should be noted that the second limiting member 172 can be slidably positioned within the first inclined groove 1811 via a connecting member such as a pin. Alternatively, as... FIG. 19 As shown, the side wall of the second limiting member 172 is provided with a guide protrusion 1721, which is inserted into the first inclined groove 1811.

[0193] I've come to pay my respects again. FIG. 20 In one embodiment, the linkage mechanism 180 further includes a pressing member 182, which is movably disposed within the first mounting cavity 1111 and has a fifth position and a sixth position. Specifically, the first bottom cover 1116 is provided with a movable limiting seat 114 on the side facing the first mounting cavity 1111 (see... FIG. 21 and FIG. 21 The movable limiting seat 114 has a movable cavity 1141. A first opening 1142 is provided on the side of the movable limiting seat 114 facing the second limiting member 172, and the first opening 1142 communicates with the movable cavity 1141. The pressing member 182 is accommodated within the movable cavity 1141 and can move up and down along the fifth direction F5 within the movable cavity 1141. The pressing member 182 has a second inclined groove 1821 (see...). FIG. 19 and FIG. 20 The second end of the linkage 181 passes through the first opening 1142 and slides within the second inclined groove 1821. The extending direction of the first inclined groove 1811 intersects the extending direction of the second inclined groove 1821. Specifically, when the pressing member 182 is in the fifth position, the linkage 181 is in the third position; when the pressing member 182 is in the sixth position, the linkage 181 is in the fourth position. Thus, the position of the linkage 181 can be changed by changing the position of the pressing member 182, thereby controlling whether the second limiting member 172 can be inserted into the second limiting groove 171. In this embodiment, as... FIG. 15 As shown, a portion of the pressing member 182 is a quadrilateral hollow cylindrical structure, and a second inclined groove 1821 is provided on the side wall of the hollow cylindrical structure. The second end of the linkage member 181 enters the hollow cylindrical structure; as shown... FIG. 31 As shown, another part of the pressing member 182 is a circular protruding column structure.

[0194] In this embodiment, the distance between the bottom end of the first inclined groove 1811 and the bottom end of the second inclined groove 1821 is less than the distance between the top end of the first inclined groove 1811 and the top end of the second inclined groove 1821. When the pressing member 182 is in the fifth position in the movable cavity 1141, the second end of the linkage member 181 is located at the bottom end of the second inclined groove 1821, and the guide protrusion 1721 of the second limiting member 172 is located at the bottom end of the first inclined groove 1811; when the pressing member 182 is in the sixth position in the movable cavity 1141, the second end of the linkage member 181 is located at the top end of the second inclined groove 1821, and the guide protrusion 1721 of the second limiting member 172 is located at the top end of the first inclined groove 1811.

[0195] Specifically, in one embodiment, such as FIG. 19 As shown, the linkage mechanism 180 also includes a fourth reset member 183, which abuts against the linkage member 181 and is used to provide an elastic restoring force to the linkage member 181 to drive the linkage member 181 to remain in the third position.

[0196] The following, with reference to the illustrations, briefly explains the principle that when the first positioning component 110 is connected to the first vehicle body 500, the first positioning component 110 can rotate relative to the second positioning component 120 to face the first direction F1, and when the first positioning component 110 is connected to the second vehicle body 600, the first positioning component 110 is restricted from rotating relative to the second positioning component 120 to face the first direction F1. In other words, the working principle of the second limiting mechanism 170 can be briefly explained with reference to the illustrations; or, in layman's terms, the principle that when the second limiting member 172 is inserted into the second limiting groove 171, the first positioning component 110 is restricted from rotating relative to the second positioning component 120 to face the first direction F1, and the principle that when the second limiting member 172 is removed from the second limiting groove 171, the first positioning component 110 is allowed to rotate relative to the second positioning component 120 to face the first direction F1.

[0197] See FIG. 31 and FIG. 31 In one embodiment, the first housing 111 is provided with a push hole 1114 communicating with the first mounting cavity 1111. Specifically, the first top cover 1115 is provided with the push hole 1114, and the top of the movable limiting seat 114 is provided with a second opening 1143 (see...). FIG. 33 and FIG. 1 The second opening 1143 and the push hole 1114 are positioned opposite each other along the fifth direction F5. A push member 520 (see...) is provided on the side of the first carrier body 500 facing the first positioning assembly 110. FIG. 29 When the first vehicle body 500 is connected to the first connecting mechanism 112, that is, when the first vehicle body 500 is installed to the first positioning component 110, the pusher 520 will pass through the push hole 1114 and abut against the pressing member 182, so that the pressing member 182 is in the sixth position.

[0198] As described above, when the pressing member 182 is in the sixth position, the linkage member 181 is in the fourth position, and the second limiting member 172 is lifted to retract from the second limiting groove 171. Specifically, when the second limiting member 172 is lifted, it does not extend out of the second limiting hole 1113. When the first carrier body 500 is held in place by the first positioning assembly 110, the pressing member 182 can be held in the sixth position by the pushing action of the pusher 520, thereby ensuring that the second limiting member 172 is always held in the lifted state (see...). FIG. 2 and FIG. 32The second limiting member 172 retracts from the second limiting groove 171. Therefore, when the first positioning component 110 slides relative to the second positioning component 120 via the rotational moving mechanism 190, the second limiting member 172 will not interfere with the second positioning component 120. The first positioning component 110 can slide freely relative to the second positioning component 120. For example, the first positioning component 110 can slide towards the first direction F1 (see...). FIG. 35 and FIG. 36 Alternatively, the first positioning component 110 may be oriented toward a third party, F3 (see...). FIG. 16 and FIG. 30 ).

[0199] However, when the first carrier body 500 is removed from the first positioning assembly 110, the pressing member 182 is no longer subjected to the pushing force from the pushing member 520. Under the elastic action of the fourth reset member 183, the linkage member 181 can move and remain in the third position. Under the driving action of the first inclined groove 1811 and the second inclined groove 1821, the pressing member 182 returns to the fifth position, and the second limiting member 172 moves down, extends out of the second limiting hole 1113, and inserts into the second limiting groove 171.

[0200] See FIG. 9 and FIG. 22 Since the side of the second carrier body 600 facing the first positioning component 110 does not have a pusher 520, when the second carrier body 600 is installed onto the first positioning component 110, the top of the pressing member 182 will not be affected by external thrust and can remain in the fifth position. Simultaneously, the linkage 181 remains in the third position, and the second limiting member 172 remains extended outside the second limiting hole 1113 and inserted into the second limiting groove 171. Specifically, in this embodiment, the second limiting groove 171 is a semi-circular groove connected to the first track 191 and the second track 192, and the opening of the semi-circular groove faces the third direction F3. Therefore, after being inserted into the second limiting groove 171, the second limiting member 172 can only move within the extension range of the semi-circular groove. When the first positioning component 110 is facing the third direction F3, the second limiting member 172 is located at the midpoint of the semi-circular groove; when the first positioning component 110 is facing the second direction F2 or the fourth direction F4, the second limiting member 172 is located at the end of the semi-circular groove and abuts against the groove wall at the end. The end of the second limiting groove 171 restricts the second limiting member 172 from continuing to rotate, thereby restricting the first positioning component 110 from rotating relative to the second positioning component 120 to facing the first direction F1.

[0201] In one embodiment, the radius of the first limiting groove 141 and the radius of the second limiting groove 171 can be the same or different. When the radius of the first limiting groove 141 and the radius of the second limiting groove 171 are the same, the first limiting groove 141 can be regarded as the second limiting groove 171, and correspondingly, the first limiting hole 1112 can be regarded as the second limiting hole 1113. More specifically, as... FIG. 23 as well as FIG. 22 As shown, the second limiting member 172 is generally a cylindrical structure with openings at both ends, and the second limiting member 172 is sleeved on the outside of the first limiting member 142. Of course, in other embodiments, when the radius of the first limiting groove 141 is not the same as the radius of the second limiting groove 171, the first limiting groove 141 and the second limiting groove 171 can be regarded as concentric structures.

[0202] As described above, in this embodiment, the insertion of the second limiting member 172 of the second limiting mechanism 170 into the second limiting groove 171 can prevent the second carrier body 600 from rotating to face the first direction F1. The second limiting mechanism 170 can be referred to as an anti-misuse structure. In this embodiment, the fourth reset member 183 acts as an elastic member. The elastic force of the fourth reset member 183 can constantly keep the second limiting mechanism 170 in the first state, that is, constantly cause the linkage mechanism 180 to drive the second limiting member 172 to insert into the second limiting groove 171. The pushing member 520 of the first carrier body 500 can overcome the elastic force of the fourth reset member 183 and keep the second limiting mechanism 170 in the second state. Therefore, when the first positioning component 110 is connected to the first carrier body 500 or the second carrier body 600, the restriction of the rotation angle range of the first positioning component 110 by the second limiting mechanism 170 can be released or the restriction of the rotation angle range of the first positioning component 110 can be driven by the second limiting mechanism 170 without the user's manual operation.

[0203] It should be noted that in other embodiments, the second limiting mechanism 170 can be kept in a second state by an elastic member. When the first positioning component 110 is used to connect to the second carrier body 600, the second limiting mechanism 170 is in a first state by the second carrier body 600 overcoming the elastic force of the elastic member. In other embodiments, the linkage mechanism 180 can be omitted. For example, an elastic member is located inside and abuts against the second limiting member 172. The elastic force of the elastic member constantly causes the second limiting member 172 to disengage from the second limiting groove 171. The second carrier body 600 is provided with a pushing structure similar to the pushing member 520. When the second carrier body 600 is connected to the first positioning component 110, the pushing structure overcomes the elastic force of the elastic member and pushes the second limiting member 172 to move into the second limiting groove 171, thereby limiting the rotation angle range of the first positioning component 110. Alternatively, the positioning component 100 may also be provided with an anti-misuse mechanism (not shown in the figure), and the anti-misuse mechanism is provided with an anti-misuse button for manual operation by the user. The anti-misuse button can be operated to move to different positions. When the user manually operates the anti-misuse button to move to one of the positions, it can drive the second limiting member 172 to insert into the second limiting groove 171.

[0204] To prevent the first positioning component 110 from rotating freely relative to the second positioning component 120, in one embodiment, the positioning component 100 further includes a first locking mechanism disposed between the first positioning component 110 and the second positioning component 120. The first locking mechanism has a first locked state and a first unlocked state. When the first locking mechanism is in the first locked state, the first positioning component 110 is restricted from rotating relative to the second positioning component 120. When the first locking mechanism is in the first unlocked state, the first positioning component 110 is allowed to rotate relative to the second positioning component 120. In this embodiment, when the first locking mechanism is in the first locked state, the side of the first positioning component 110 is locked to the second positioning component 120, that is, there is a lateral lock between the first positioning component 110 and the second positioning component 120.

[0205] See FIG. 23 , FIG. 25 as well as FIG. 27In one embodiment, the first locking mechanism includes a locking component 211 and a locking recess 212. The locking component 211 is movably disposed on one of the second positioning component 120 and the first positioning component 110, while the locking recess 212 is disposed on the other of the second positioning component 120 and the first positioning component 110. For example, when the locking component 211 is movably disposed on the first positioning component 110, the locking recess 212 is disposed on the second positioning component 120. Alternatively, when the locking component 211 is movably disposed on the second positioning component 120, the locking recess 212 is disposed on the first positioning component 110. When the locking component 211 is inserted into the locking recess 212, the first positioning component 110 and the second positioning component 120 are locked together to restrict rotation of the first positioning component 110 relative to the second positioning component 120. When the locking component 211 is disengaged from the locking recess 212, the first positioning component 110 can rotate relative to the second positioning component 120.

[0206] It should be noted that, in this embodiment, when the first positioning component 110 is oriented relative to the second positioning component 120 in a first direction F1 or a third direction F3, the locking component 211 can lock into the locking recess 212 to restrict the rotation of the first positioning component 110 relative to the second positioning component 120. However, when the first positioning component 110 is oriented relative to the second positioning component 120 in a second direction F2 or a fourth direction F4, the locking component 211 and the locking recess 212 are not locked together, and the first positioning component 110 can rotate relative to the second positioning component 120. In this embodiment, the locking recess 212 is located on the side of the first positioning component 110; in other embodiments, the locking recess 212 may be located at the bottom of the first positioning component 110, so that the bottom of the first positioning component 110 is locked to the second positioning component 120.

[0207] In this embodiment, as FIG. 22 , FIG. 23 , FIG. 22 as well as FIG. 27 As shown, the locking assembly 211 includes a first locking part 2111. The first locking part 2111 is movably disposed in either the second positioning assembly 120 or the first positioning assembly 110 along a first direction F1. Specifically, in this embodiment, the first locking part 2111 is movably disposed in the second positioning assembly 120. A protrusion is provided on the upper surface of the second housing. Specifically, the second housing is provided with two protrusions 1214 spaced apart along the first direction F1 or a third direction F3 (see...). FIG. 23 and FIG. 23The space between the two protrusions 1214 is used to accommodate the first positioning component 110. Optionally, the first locking part 2111 is movably disposed at the front end or rear end of the second positioning component 120 along the first direction F1, that is, equivalent to being movably disposed at one of the two protrusions 1214 disposed at the front and rear. Specifically, each of the two protrusions 1214 is provided with a through hole, and both through holes are connected to the second mounting cavity 1211. The first locking part 2111 corresponds to one of the through holes and is movably disposed in the second mounting cavity 1211, and at least a portion of the first locking part 2111 can extend out of the second mounting cavity 1211 through the corresponding through hole. More specifically, as shown in the figure... FIG. 26 and FIG. 9 As shown, along the first direction F1, the first locking part 2111 is located at the rear end of the second positioning component 120, which means that the first locking part 2111 is movably inserted into the through hole of the rear protrusion 1214. It should be noted that the protrusion 1214 protrudes upward relative to the first track 191 and the second track 192. In this embodiment, the first track 191 and the second track 192 are located on the upper surface of the second top cover 1212, therefore the protrusion 1214 protrudes upward relative to the upper surface of the second top cover 1212. In other embodiments, if the first track 191 and the second track 192 are not located on the upper surface of the second top cover 1212, but are recessed relative to the upper surface of the second top cover 1212, then the protrusion 1214 may not protrude upward relative to the upper surface of the second top cover 1212; for example, the protrusion 1214 may be flush with the upper surface of the second top cover 1212. In this embodiment, the protrusion 1214 is provided on the second top cover 1212. In other embodiments, the protrusion 1214 may also be provided on other parts of the second housing 121. In some non-limiting embodiments, the protrusion 1214 may be only one or more.

[0208] Furthermore, in this embodiment, as FIG. 22 As shown, the locking assembly 211 further includes a second locking part 2112. The second locking part 2112 is movably disposed in either the second positioning assembly 120 or the first positioning assembly 110 along the first direction F1. Specifically, in this embodiment, both the second locking part 2112 and the first locking part 2111 are movably disposed in the second positioning assembly 120, and the second locking part 2112 and the first locking part 2111 are disposed opposite to each other along the first direction F1. Specifically, as... FIG. 23 and FIG. 11 As shown, the second locking part 2112 is movably disposed at the front end of the second positioning component 120, that is, the second locking part 2112 is movably disposed in the through hole of the protrusion 1214 located at the front.

[0209] Specifically, in this embodiment, such as FIG. 14As shown, a locking recess 212 is provided only on one side of the first positioning component 110, and the number of locking recesses 212 on that side is set to one. When the first positioning component 110 is facing the first direction F1, the locking recess 212 is also facing the first direction F1, and the locking recess 212 rotates synchronously with the rotation of the first positioning component 110. Therefore, when the first positioning component 110 is facing the first direction F1, the second locking part 2112 can be inserted into the locking recess 212 and locked in place, so that the first positioning component 110 remains facing the first direction F1. When the first positioning component 110 is facing the third direction F3, the locking recess 212 rotates synchronously to face the third direction F3, and the first locking part 2111 can be inserted into the locking recess 212 and locked in place, so that the first positioning component 110 remains facing the third direction F3.

[0210] Optionally, in other embodiments, locking recesses 212 may be provided on both sides of the first positioning component 110. In this case, the locking component 211 may include a first locking part 2111 and a second locking part 2112, or only the first locking part 2111 or the second locking part 2112. Taking the example of the first positioning component 110 having locking recesses 212 on both sides and the locking component 211 including only the first locking part 2111, when the first positioning component 110 is facing the first direction F1 or the third direction F3, one side of the locking recess 212 faces the first direction F1, and the other side of the locking recess 212 faces the third direction F3. Thus, when the first positioning component 110 rotates to the first direction F1 or the third direction F3, the first locking part 2111 can be inserted into the corresponding locking recess 212 to achieve a locking engagement, so that the first positioning component 110 can be held in the first direction F1 or the third direction F3. In this embodiment, the first locking part 2111 and the second locking part 2112 each include only one tongue, and the number of locking recesses 212 on the corresponding side of the first positioning component 110 is also set to one; in other embodiments, the number of tongues of the first locking part 2111 and the second locking part 2112 can be two or more, and the number of locking recesses 212 on the corresponding side of the first positioning component 110 is also set to two or more.

[0211] See FIG. 2 and FIG. 38In one embodiment, the second top cover 1212 has two protrusions 1214 spaced apart along a first direction F1 or a third direction F3, each forming a limiting protrusion 1215. Both limiting protrusions 1215 protrude into the space accommodating the first positioning component 110. Each limiting protrusion 1215 forms an open groove structure with the upper surface of the second housing 121 (in this embodiment, the upper surface of the second top cover 1212). Thus, when the first positioning component 110 is accommodated in the space between the two protrusions 1214, a portion of the edge 1118 of the first housing 111 (see...) FIG. 38 and FIG. 39 The first housing 111 is circular in shape. When the first positioning assembly 110 is housed in the space between the two protrusions 1214, the circumferential edge 1118 of the first housing 111 can be inserted into the two slotted structures. When the vehicle body is mounted on the first positioning assembly 110, the center of gravity of the vehicle body is generally biased towards the rear side of the vehicle body, that is, the side of the vehicle body closer to its backrest. Taking the first vehicle body 500 as an example, if... FIG. 22 As shown, when the first vehicle body 500 is positioned rearward, i.e., the first positioning component 110 is positioned facing the third direction F3, the portion of the edge 1118 of the first housing 111 facing the third direction F3 may tend to tilt upwards. The aforementioned arrangement of inserting the portion of the edge 1118 of the first housing 111 into these two slotted structures prevents the first positioning component 110 from arbitrarily detaching from the second positioning component 120 under the weight of the vehicle body. In some non-limiting embodiments, there may be only one or more slotted structures.

[0212] Furthermore, a first support mechanism 127 may also be provided within the second mounting cavity 1211. On one hand, when the vehicle body (such as the first vehicle body 500 or the second vehicle body 600) is connected to the first positioning component 110, and the first positioning component 110 rotates relative to the second positioning component 120 to face the first direction F1 or the third direction F3, the first support mechanism 127 is used to assist in supporting the vehicle body, thereby improving the stability of the vehicle body installed on the first positioning component 110. On the other hand, in this embodiment, the first support mechanism 127 is at least partially located within the groove structure of the protrusion 1214. In this embodiment, the first support mechanism 127 can be used to strengthen the groove wall strength of the groove structure used to engage the partial edge 1118 of the first housing 111 mentioned above. In this embodiment, there are two first support mechanisms 127, each disposed at one of the two protrusions 1214.

[0213] The structure of the first support mechanism 127 located at the rear end of the second positioning component 120 is described in detail below. The first support mechanism 127 may include a first support member 1271 and a second support member 1272. In this embodiment, as shown...FIG. 23 As shown, the second positioning component 120 also includes a frame 128 disposed within the second mounting cavity 1211. The frame 128 is generally U-shaped and includes a first straight rod 1281 and a second straight rod 1282 extending along the front-rear direction of the positioning component 100 and spaced apart in the left-right direction, and an arc-shaped rod 1283 whose two ends are respectively connected to the first straight rod 1281 and the second straight rod 1282. In this embodiment, the first support member 1271 located at the rear end of the second positioning component 120 is a U-shaped rod, and the two ends of the first support member 1271 are respectively fixed to the upper surfaces of the first straight rod 1281 and the second straight rod 1282. There are two second support members 1272, which are spaced apart on the upper surface of the first support member 1271. Of course, in other embodiments, the first support member 1271 may also be other shapes such as a straight structure, and the number of second support members 1272 may be more than two or less than two.

[0214] The structure of one of the second support members, 1272, is described in detail below. Please refer to [the original text]. FIG. 11 and FIG. 14 The second support member 1272 is generally a U-shaped frame structure and includes two oppositely arranged connecting pieces 12721, and a connecting piece 12722 connecting the two connecting pieces 12721. Each connecting piece 12721 includes a connecting body 12721a and a support protrusion 12721b protruding from the connecting body 12721a. The support protrusion 12721b is connected to approximately the middle of the connecting body 12721a. In this embodiment, the connecting pieces 12721 are all integrally formed structures. In other embodiments, the connecting pieces 12721 can also be formed by connecting the connecting body 12721a and the support protrusion 12721b by welding, riveting, or other methods. The lower surfaces of the connecting body 12721a and the support protrusion 12721b form a fixing groove 12721c. The first support member 1271 is at least partially engaged in the fixing groove 12721c so that the second support member 1272 is supported by the first support member 1272. Furthermore, to increase the connection stability between the first support member 1271 and the second support member 1272, the portion of the connecting body 12721a located below the support protrusion 12721b and the lower surface of the support protrusion 12721b are fixedly connected to this portion of the first support member 1271. The upper surface of the support protrusion 12721b, the connecting body 12721a, and the connecting piece 12722 enclose and form a locking groove 12721d. Specifically, the connecting piece 12722 has a generally square sheet-like structure, and the general middle part of the connecting piece 12722 arches upward, that is, arches away from the first support member 1271 to form an arched portion 12722a. The side of the arched portion 12722a facing the first support member 1271 forms a receiving groove 12722b. The general middle part of the arched portion 12722a is also provided with a fastening hole 12722c communicating with the receiving groove 12722b.

[0215] In this embodiment, please refer to the following: FIG. 40 and FIG. 41 The protrusion 1214 has a communicating hole (not shown in the figure) on the side facing the space accommodating the first positioning component 110, which communicates with the second mounting cavity 1211. The communicating hole is specifically located at the bottom of the groove structure. The first support member 1271 is located in the second mounting cavity 1211. The portion of the second support member 1272 located below the upper surface of the support protrusion 12721b is located in the second mounting cavity 1211, and the portion of the second support member 1272 located above the upper surface of the support protrusion 12721b extends out of the second mounting cavity 1211 through the communicating hole and protrudes from the upper surface of the second top cover 1212. The arched portion 12722a of the connecting piece 12722 is located below the limiting protrusion 1215; more specifically, the arched portion 12722a of the connecting piece 12722 can be supported below the limiting protrusion 1215.

[0216] In this embodiment, the limiting protrusion 1215 (or protrusion 1214) is generally made of plastic, while the second support member 1272 is made of a rigid material (e.g., a metal sheet). Therefore, the second support member 1272 can strengthen the structural strength of the limiting protrusion 1215 (or protrusion 1214). When the first positioning component 110 is accommodated in the space between the two protrusions 1214, a portion of the edge 1118 of the first housing 111 (see...) FIG. 40 and FIG. 41 It can be inserted into these two slotted structures, that is, into the two engaging slots 12721d located at the front and rear ends of the second positioning component 120, which can further prevent the first positioning component 110 from arbitrarily disengaging from the second positioning component 120.

[0217] Further, please see FIG. 11 and FIG. 14 Each second support member 1272 may also have a support pad 1273 disposed within its receiving groove 12722b. The support pad 1273 may be fixed to the side of the arched portion 12722a facing the first support member 1271 by fasteners such as screws passing through the fastening hole 12722c and the support pad 1273. The support pad 1273 may increase the contact area between the second support member 1272 and the edge 1118, thereby further improving the structural strength of the limiting protrusion 1215 and preventing damage to the limiting protrusion 1215 or failure to limit the first positioning assembly 110.

[0218] Furthermore, such as FIG. 42 and FIG. 8As shown, the first support mechanism 127 may further include an auxiliary support piece 1274 with a generally C-shaped cross-section. For example, the auxiliary support piece 1274 may include a first auxiliary piece 12741, a second auxiliary piece 12742, and a third auxiliary piece 12743 connected sequentially and arranged at an angle. The length of the third auxiliary piece 12743 is less than that of the first auxiliary piece 12741 and the second auxiliary piece 12742, and the third auxiliary piece 12743 is connected at the middle position of the second auxiliary piece 12742. In this embodiment, the first auxiliary piece 12741 and the second auxiliary piece 12742 are perpendicular to each other, and the second auxiliary piece 12742 and the third auxiliary piece 12743 are perpendicular to each other. In other embodiments, the angle between the first auxiliary piece 12741 and the second auxiliary piece 12742, and the angle between the second auxiliary piece 12742 and the third auxiliary piece 12743, may be greater than 90 degrees or less than 90 degrees. When the auxiliary support piece 1274 is disposed on the second support member 1272, the first auxiliary piece 12741 is disposed approximately horizontally and located above the upper surface of the support protrusion 12721b of the two second support members 1272. The second auxiliary piece 12742 is disposed approximately vertically and abuts against the bottom of the engaging groove 12721d of the two second support members 1272, that is, abuts against the portion of the connecting body 12721a of the two second support members 1272 located above the support protrusion 12721b. The third auxiliary piece 12743 is located between the two second support members 1272 and can abut against the two connecting pieces 12722. More specifically, in this embodiment, the support pad 1273 disposed in the receiving groove 12722b of each of the aforementioned second support members 1272 can be regarded as part of the auxiliary support piece 1274, and the two support pads 1273 are disposed on the second auxiliary piece 12742 and located at both ends of the third auxiliary piece 12743. In this embodiment, the auxiliary support piece 1274 is an integrally formed mechanism, that is, the first auxiliary piece 12741, the second auxiliary piece 12742, the third auxiliary piece 12743, and the support pad 1273 are integrally formed. Of course, in other embodiments, the first auxiliary piece 12741, the second auxiliary piece 12742, the third auxiliary piece 12743, and the support pad 1273 can also be connected by welding, riveting, etc. to form the auxiliary support piece 1274. More specifically, the second auxiliary piece 12742 is provided with an opening 12744, which connects the second mounting cavity 1211 and the connecting hole of the protrusion 1214, so that the first locking part 2111 or the second locking part 2112 can pass through. When the first positioning component 110 is accommodated in the space between the two protrusions 1214, a portion of the edge 1118 of the first housing 111 (see FIG. 9 and FIG. 25The first auxiliary piece 12741 of the auxiliary support piece 1274 can be supported by the first auxiliary piece 12741. Compared with the support directly supported by the upper surface of the support protrusions 12721b of the two second support pieces 1272, its support area is greatly increased, which plays a certain role in relieving pressure and reducing the pressure borne by the unit support area. This can further assist in supporting the first positioning component 110, that is, assist in supporting the vehicle body, so as to improve the stability of the vehicle body installed on the first positioning component 110.

[0219] It is worth noting that the structure of the first support mechanism 127 located at the front end of the second positioning component 120 is roughly similar to the structure of the first support mechanism 127 located at the rear end of the second positioning component 120. The only difference is that, since the second positioning component 120 has a structure that is lower in the front and higher in the back, the first support member 1271 of the first support mechanism 127 located at the front end of the second positioning component 120 is a straight rod rather than a U-shaped rod.

[0220] Furthermore, such as FIG. 28 As shown, the first positioning component 110 also includes a second support mechanism 117. Specifically, the second support mechanism 117 includes the first slider 194 and the second slider 195 described above. The two ends of the first slider 194 are respectively connected to the first positioning component 110 and the first slider 196 disposed on the second positioning component 120, and the two ends of the second slider 195 are respectively connected to the first positioning component 110 and the second slider 197 disposed on the second positioning component 120. Please refer to [further details omitted]. FIG. 42 and FIG. 25 When the first positioning component 110 rotates relative to the second positioning component 120 to face the second direction F2 or the fourth direction F4, the projection of at least a portion of the first positioning component 110 in the fifth direction F5 will exceed the projection of the second positioning component 120 in the fifth direction F5, meaning that portion of the first positioning component 110 will be suspended. Meanwhile, the first sliding member 194 and the second sliding member 195 remain within the projection range of the second positioning component 120 in the fifth direction F5. Therefore, the first sliding member 194 and the second sliding member 195 can support the first positioning component 110 and the vehicle body mounted above it, and also exert a certain pulling force on the non-suspended portion of the first positioning component 110, preventing it from tilting upwards due to the weight of the suspended portion of the first positioning component 110.

[0221] Furthermore, please also refer to FIG. 28 , FIGS. 25-27 and FIGS. 25-27The second positioning component 120 may further include a third support mechanism 129. The third support mechanism 129 includes multiple sets of support column assemblies disposed within the second mounting cavity 1121. In this embodiment, the third support mechanism 129 includes six sets of support column assemblies, which are spaced apart along the extension direction of the second track 192. Specifically, each set of support column assemblies includes a first support column 1291 and a second support column 1292 located on both sides of the second track 192. The first support column 1291 includes a first bottom column 1291a fixed to the second bottom cover 1213 and a first top column 1291b fixed to the second top cover 1212, the first bottom column 1291a and the first top column 1291b abutting to form a support structure. The second support column 1292 includes a second bottom column 1292a fixed to the second bottom cover 1213 and a second top column 1292b fixed to the second top cover 1212, the second bottom column 1292a and the second top column 1292b abutting to form a support structure. Thus, the six sets of support column assemblies can further enhance the structural strength of the second positioning assembly 120 and provide auxiliary support for the first positioning assembly 110. In this embodiment, as... FIGS. 25-27 and FIGS. 25-27 As shown, two sets of support column assemblies (hereinafter referred to as the first support column assemblies) are located near the two ends of the first track 192; two other sets of support column assemblies (hereinafter referred to as the second support column assemblies) are located near the intersection 193; and two more sets of support column assemblies (hereinafter referred to as the third support column assemblies) are located away from the second track 192 along a first direction F1 relative to the second support column assemblies, and away from the first track 191 along a second direction F2 relative to the second support column assemblies. When the first positioning assembly 110 is rotated to the second or fourth direction relative to the second positioning assembly 120, the first sliding member 194 and the second sliding member 195 will receive auxiliary force. The first and second support column assemblies can provide support force for the first positioning assembly 110 at positions adjacent to the first sliding member 194 and the second sliding member 195. In addition, the third support column assembly can further expand the support range, thereby providing support force for the vehicle body connected to the first positioning assembly 110 and increasing the structural strength of the second positioning assembly 120, preventing the second positioning assembly 120 from being damaged by pressure. Of course, in other embodiments, the number and location of the support column assemblies can be adjusted as needed.

[0222] See FIGS. 25-27 In one embodiment, the carrier 1000 further includes a first release mechanism 300. The first release mechanism 300 is operably connected to the first lock part 2111 or the second lock part 2112 and is used to drive the first lock part 2111 or the second lock part 2112 out of the locking recess 212.

[0223] Specifically, in this embodiment, such as FIGS. 25-27As shown, the first release mechanism 300 is operably connected to the first lock part 2111. Therefore, the release principle and process of the first release mechanism 300 will be explained below by referring to the linkage between the first release mechanism 300 and the first lock part 2111. Specifically, the first release mechanism 300 includes a first drive member 310, a first operating member 320, and a first traction assembly 330. The first drive member 310 is pivotally connected to the second positioning assembly 120 and to the first lock part 2111. The first operating member 320 is operably disposed on the second positioning assembly 120 and exposed thereout. This facilitates user operation of the first operating member 320. The first traction assembly 330 is connected to both the first operating member 320 and the first drive member 310. When the first operating member 320 is operated (e.g., pressed or pushed), the first operating member 320 drives the first driving member 310 to pivot via the first traction component 330, thereby enabling the first driving member 310 to disengage the first locking part 2111 from the locking recess 212. In some non-limiting embodiments, since the first locking part 2111 is located at the rear end of the second positioning component 120 and the locking recess 212 is located at the front end of the first positioning component 110, the first locking part 2111 can only lock into the locking recess 212 when the first positioning component 110 is rotated relative to the second positioning component 120 to face a third direction F3 (i.e., away from the first direction F1). The first unlocking mechanism 300 can then control the first locking part 2111 to disengage from the locking recess 212.

[0224] In one embodiment, such as FIG. 19 As shown, there are two first release mechanisms 300, which are located on the left and right sides of the second positioning assembly 120 respectively in the left-right direction. Both first release mechanisms 300 are operably connected to the first lock part 2111. In this way, the user can operate either of the first operating elements 320 to disengage the first lock part 2111 from the locking recess 212.

[0225] See FIG. 21In one embodiment, the first traction assembly 330 includes a first traction rope 331, one end of which is connected to the first drive member 310, and the other end of which is connected to the first operating member 320. Specifically, the positioning assembly 100 is installed on the car seat, and its working principle is explained using the first unlocking mechanism 300 near the right door as an example. In this first unlocking mechanism 300, the first drive member 310 is pivotally connected to the second bottom cover 1213 at the first pivot point Q1. The pivot point of the first drive member 310 to the first lock part 2111 and the connection point of the first drive member 310 to the first traction rope 331 are located on both sides of the first pivot point Q1. More specifically, the first operating member 320 is movably disposed in the second housing 121. Therefore, when it is necessary to release the first lock part 2111, the first operating member 320 near the right door can be moved to drive the first traction rope 331 to pull the first driving member 310 to rotate counterclockwise around the first pivot point Q1. This allows the first driving member 310 to move the first lock part 2111 towards the third direction F3, so that the first lock part 2111 can be disengaged from the locking recess 212. It should be noted that when the first driving member 310 near the right door rotates counterclockwise around the first pivot point Q1, since the first driving member 310 near the left door is also connected to the first lock part 2111, the first lock part 2111 will drive the first driving member 310 near the left door to rotate clockwise around its first pivot point Q1. That is, the two first driving members 310 in this embodiment are linked. Operating one of the first operating members 320 can release the first lock part 2111 and drive both first driving members 310 to pivot.

[0226] See also FIG. 19 In one embodiment, the locking assembly 211 further includes a fifth reset member 2113. The fifth reset member 2113 abuts between the second bottom cover 1213 and the first locking part 2111, and is used to drive the first locking part 2111 to reset, so that the first locking part 2111 always tends to insert into the locking recess 212. The fifth reset member 2113 is, for example, a spring, so that when the locking recess 212 rotates with the first positioning assembly 110 to be opposite the first locking part 2111, it is equivalent to the shell wall of the first housing 111 releasing its abutment against the first locking part 2111. Under the elastic action of the fifth reset member 2113, the first locking part 2111 can automatically insert into the locking recess 212.

[0227] As described above, when the first positioning component 110 is connected to the second carrier body 600, the first positioning component 110 is restricted to facing the first direction F1. Therefore, in this embodiment, when the first positioning component 110 is connected to the second carrier body 600, only the first locking part 2111 can play a locking role, while the second locking part 2112 does not lock into the locking recess 212. Specifically, when the first positioning component 110 faces the third direction F3, the first locking part 2111 can automatically insert into the locking recess 212 to lock into the locking recess 212 under the action of the fifth reset member 2113. At the same time, the second locking part 2112 is abutted by the shell wall of the first housing 111 and accommodated in the second mounting cavity 1211. When the user needs to switch the first positioning component 110 from facing the third direction F3 to the second direction F2 or the fourth direction F4, the user can operate the aforementioned first unlocking mechanism 300 to retract the first locking part 2111 from the locking recess 212. Therefore, when the first positioning component 110 is connected to the second vehicle body 600, the first lock part 2111 can be operated simply by using the first release mechanism 300.

[0228] As described above, when the first positioning component 110 is connected to the first carrier body 500, the first positioning component 110 can rotate freely relative to the second positioning component 120, that is, the first positioning component 110 can face any one of the first direction F1, the second direction F2, the third direction F3, and the fourth direction F4. In one embodiment, as... FIG. 19 As shown, the locking assembly 211 also includes a seventh reset member 2114, which abuts between the second bottom cover 1213 and the second locking part 2112, for causing the second locking part 2112 to tend to insert into the locking recess 212. Therefore, when the first positioning assembly 110 is oriented towards the first direction F1, the locking recess 212 and the second locking part 2112 are opposite each other. Under the elastic action of the seventh reset member 2114, the second locking part 2112 can be inserted into the locking recess 212 to lock and engage with the locking recess 212. At this time, the first locking part 2111 is abutted by the shell wall of the first housing 111 to be accommodated in the second mounting cavity 1211. When it is necessary to switch the first positioning assembly 110 from the orientation towards the first direction F1 to other directions (e.g., the second direction F2, the fourth direction F4, etc.), the user can first retract the second locking part 2112 from the locking recess 212, and then change the orientation of the first positioning assembly 110 by rotating the moving mechanism 190.

[0229] See FIG. 29 and FIG. 29 In one embodiment, the carrier 1000 further includes a second release mechanism 400, which is mainly used to be operably connected to the second lock part 2112 and can be used to drive the second lock part 2112 out of the locking recess 212.

[0230] See FIG. 49 In one embodiment, the locking recess 212 is a locking hole that communicates with the first mounting cavity 1111. Specifically, as shown... FIG. 30 and FIG. 34 As shown, the second unlocking mechanism 400 includes a second driving member 410, a second operating member 420, and a transmission unit. The second driving member 410 is movably disposed within the first mounting cavity 1111, and can drive the second locking part 2112 out of the locking recess 212. Specifically, when the first positioning component 110 faces or is away from the first direction F1, the movement direction of the second driving member 410 is parallel to the first direction F1 or the third direction F3. Thus, when the second driving member 410 moves, it can contact and abut against the second locking part 2112, thereby pushing the second locking part 2112 out of the locking recess 212. Specifically, the second driving member 410 is provided with an elastic arm 411, which abuts against the side wall of the first bottom cover 1116 or the first top cover 1115 to assist in resetting the second driving member 410. The second operating member 420 is operably disposed on the first carrier body 500 (see...). FIG. 30 and FIG. 34 The transmission unit is connected to the second operating member 420 and the second driving member 410 respectively. When the second operating member 420 is operated, the second operating member 420 drives the second driving member 410 to move through the transmission unit, so that the second driving member 410 drives the first locking part 2111 to disengage from the locking recess 212.

[0231] Combination FIGS. 43-44 and FIG. 30 In one embodiment, the transmission unit includes a first transmission assembly 430 and a second transmission assembly 440. The first transmission assembly 430 is disposed in the first carrier body 500, and the second transmission assembly 440 is disposed within the first mounting cavity 1111. The first transmission assembly 430 and the second transmission assembly 440 are driven together.

[0232] Combination FIG. 34 , FIG. 44 , FIG. 46 In one embodiment, the second transmission assembly 440 includes a transmission member 441, a third driving member 442, and a third traction assembly 443. The transmission member 441 is movably disposed within the first mounting cavity 1111 and is drivably connected to the first transmission assembly 430 (see...). FIG. 43 and FIG. 44 The third drive member 442 is pivotally connected to the bottom wall of the first mounting cavity 1111 and to the second drive member 410. Specifically, the third drive member 442 is pivotally connected to the first bottom cover 1116 at the second pivot point Q2 (see...). FIG. 47 and ​The third traction component 443 is connected to the transmission component 441 and the third drive component 442 respectively (see...). ​ and ​ When the first transmission assembly 430 drives the transmission member 441 to move, the transmission member 441 drives the third drive member 442 to pivot via the third traction assembly 443, so that the second drive member 410 moves to push the second locking part 2112 out of the locking recess 212.

[0233] Specifically, such as ​ and Figure 48 As shown, the third traction assembly 443 is a flexible element, comprising a third traction rope 4431 and a third traction sleeve 4432 sleeved around the third traction rope 4431. When the transmission member 441 moves, the third traction sleeve 4432 deforms, causing the third traction rope 4431 to pivot by pulling the third drive member 442, thereby driving the second drive member 410 to move and push against the second locking part 2112. Specifically, the third traction sleeve 4432 has a first sleeve end 44321 and a second sleeve end 44322, and the third traction rope 4431 has a first rope end 44311 adjacent to the first sleeve end 44321 and a second rope end 44312 adjacent to the second sleeve end 44322. More specifically, as Figure 30 As shown, the transmission component 441 includes a fixed base 4411 and a movable pusher 4412. The fixed base 4411 is fixedly disposed within the first mounting cavity 1111, while the movable pusher 4412 is movably disposed on the fixed base 4411 along the fifth direction F5, meaning that the movable pusher 4412 can move relative to the fixed base 4411 along the fifth direction F5. The first end 44311 of the third traction rope 4431 is connected to the first connecting portion 44111 of the fixed base 4411 (see...). Figure 30 The second end 44312 of the third traction rope 4431 is connected to the third drive member 442 (see...). Figure 43 and Figure 44 The connection point between the second rope end 44312 of the third traction rope 4431 and the third drive member 442, and the pivot point between the third drive member 442 and the second drive member 410, are located on both sides of the second pivot point Q2. The first sleeve end 44321 of the third traction sleeve 4432 is connected to the second connecting part 44121 of the movable push seat 4412 (see...). Figure 30 Along the fifth direction F5, the second connecting part 44121 is located below the first connecting part 44111, and the second end 44322 of the third traction sleeve 4432 is connected to the first top cover 1115 or the first bottom cover 1116 (see...). Figure 43 and Figure 44 Specifically, the first bottom cover 1116 or the second top cover 1212 is provided with a third connecting part 4413 on the side facing the first mounting cavity 1111 (see...). Figure 21The second end 44322 of the third traction sleeve 4432 is connected to the third connecting part 4413. Specifically, the third traction sleeve 4432 is a flexible sleeve. It should be noted that the third traction sleeve 4432 should be made of a rigid but flexible material, such as a flexible tubular structure made of metal (e.g., steel) or plastic (e.g., PVC). Similarly, the third traction rope 4431 can also be made of a rigid but flexible material, for example. (The following is in conjunction with...) Figure 29 and Figure 30 This will explain the working principle and process of the second transmission component 440.

[0234] When it is necessary to disengage the second locking part 2112 from the locking recess 212 so that the first positioning component 110 can slide relative to the second positioning component 120, the user can move the movable push seat 4412 downward along the fifth direction F5. This causes the second connecting part 44121 to move the first sleeve end 44321, and simultaneously the third traction sleeve 4432 to bend, causing the third traction rope 4431 to bend along with the third traction sleeve 4432. Since the first rope end 44311 of the third traction rope 4431 is fixed to the first connecting part 44111, when the movable push seat 4412 moves downward along the fifth direction F5, the first sleeve end 44321 moves downward along the fifth direction F5 with the second connecting part 44121. The length of the section L1 of the third traction rope 4431 between the first sleeve end 44321 and the first rope end 44311 increases (due to...). Figure 47 Towards Figure 48 (Change). Since the total length of the third traction rope 4431 remains constant, under the transmission action of the third traction sleeve 4432, the length L2 of the section of the third traction rope 4431 between the second rope end 44312 and the second sleeve end 44322 decreases (from... Figure 47 Towards Figure 48 (Change), thus, it can be seen that the second rope end 44312 will pull the third drive member 442 to pivot clockwise around the second pivot point Q2, thereby causing the third drive member 442 to push the second drive member 410 to move, thereby pushing the second lock part 2112 out of the locking hole (by Figure 43 Towards Figure 45 Switch).

[0235] See Figure 30In one embodiment, the second transmission assembly 440 further includes an eighth reset member 444, which may be an elastic element such as a spring. This eighth reset member 444 abuts against the fixed seat 4411 (or the surface of the first bottom cover 1116 facing away from the second positioning assembly 120) and the movable push seat 4412, driving the movable push seat 4412 to move upward along the fifth direction F5. When the movable push seat 4412 is not pushed, the eighth reset member 444 can move and reset the movable push seat 4412, thereby resetting the third traction sleeve 4432 and the third traction rope 4431. Under the push of the third traction rope 4431, the third driving member 442 can pivot counterclockwise around the second pivot point Q2 to assist in resetting the second driving member 410.

[0236] See Figure 29 and Figure 30 In one embodiment, the first transmission assembly 430 includes a pushing member 431 and a second traction assembly 432. The pushing member 431 is movably disposed on the first carrier body 500 and is used to push against the transmission member 441. Specifically, the pushing member 431 is movable along the fifth direction F5, and the first top cover 1115 is provided with a pushing hole 1117. Thus, when the first carrier body 500 is mounted on the first housing 111, the pushing member 431 can pass through the pushing hole 1117 and abut against the movable pushing seat 4412. More specifically, the second traction assembly 432 is connected to the pushing member 431 and the second operating member 420, respectively. Thus, when the second operating member 420 is operated, the second operating member 420 can drive the pushing member 431 to push against the movable pushing seat 4412 of the transmission member 441 via the second traction assembly 432.

[0237] See Figure 29 In one embodiment, the second traction assembly 432 includes a second traction rope 4321, one end of which is connected to the second operating member 420, and the other end of which is connected to the pushing member 431. Specifically, the second operating member 420 is movably disposed in the first carrier body 500, and a linkage block 433 is provided on the top of the pushing member 431 (see...). Figure 30 , Figure 50 and Figure 51 The linkage block 433 and the first operating member 320 are spaced apart along the front-rear direction of the first carrier body 500. More specifically, the first carrier body 500 is provided with guide wheels 434 (see...). Figure 30 , Figure 50 and Figure 51The two ends of the second traction rope 4321 pass over the guide wheel 434 and are connected to the linkage block 433 and the first operating member 320, respectively. Thus, when the second operating member 420 is operated (e.g., rotated, pressed, or moved), guided by the guide wheel 434, the second traction rope 4321 pulls the linkage block 433 to push the push member 431 downwards in the fifth direction F5, thereby causing the push member 431 to pass through the push hole 1117 and extend into the first mounting cavity 1111, pushing the movable push seat 4412 downwards in the fifth direction F5. Specifically, the interior of the first carrier body 500 is provided with a sixth reset member 530 (see...). Figure 50 and Figure 51 The sixth reset member 530 abuts between the first carrier body 500 and the linkage block 433. When the user releases the second operating member 420, the sixth reset member 530 is used to drive the push member 431 to reset, that is, to drive the push member 431 to retract from the first mounting cavity 1111.

[0238] In this embodiment, the linkage block 433 and the pusher 431 are connected by fasteners such as screws or rivets, so that when the second traction rope 4321 pulls the linkage block 433, it can drive the pusher 431 to move. In other embodiments, the linkage block 433 can be omitted, and the second traction rope 4321 can be directly connected to the pusher 431 to directly pull the pusher 431 to move.

[0239] The working principle and process of the second release mechanism 400 will be briefly explained below with reference to relevant diagrams.

[0240] See Figures 29 to 31 When the first carrier body 500 is connected to the first positioning assembly 110, the pusher 431 and the transmission member 441 are positioned opposite each other. When the first positioning assembly 110 is facing the first direction F1 relative to the second positioning assembly 120, the locking recess 212 (locking hole) faces the first direction F1 and is opposite to the second locking part 2112. At this time, the second locking part 2112 is automatically inserted into the locking hole of the first positioning assembly 110 under the action of the seventh reset member 2114, so as to lock the first positioning assembly 110 facing the first direction F1.

[0241] Combination Figures 29 to 31 as well as Figures 43 to 48When it is necessary to change the orientation of the first carrier body 500, the user can operate the second operating member 420 to pull the push member 431 downward along the fifth direction F5 via the second traction rope 4321. During the downward movement, the push member 431 gradually passes through the push hole 1114 and extends into the first mounting cavity 1111 to abut against the movable push seat 4412. When the top of the movable push seat 4412 is subjected to a downward pushing force along the fifth direction F5, the movable push seat 4412 moves downward to drive the first sleeve end 44321 to move via the second connecting part 44121, thereby causing the third traction sleeve 4432 to bend and deform further. During the further bending and deformation of the third traction sleeve 4432, the length L1 of the section of the third traction rope 4431 between the first rope end 44311 and the first sleeve end 44321 increases, and the length L2 of the section of the third traction rope 4431 between the second rope end 44312 and the second sleeve end 44322 decreases. Thus, it can be regarded that the second rope end 44312 moves toward the direction closer to the second sleeve end 44322, thereby pulling the third driving member 442 to pivot clockwise around the second pivot point Q2, so that the third driving member 442 pushes the second driving member 410 to move toward the direction closer to the locking hole to push the second locking part 2112 out of the locking hole.

[0242] In this embodiment, the second release mechanism 400 can also be used to release the first lock part 2111. Specifically, when the first carrier body 500 is installed on the first positioning component 110, and the first positioning component 110 is oriented towards a third direction F3 relative to the second positioning component 120, the first lock part 2111 is opposite to the locking hole, and the first lock part 2111 can be automatically inserted into the locking hole under the action of the fifth reset member 2113. At this time, the user can selectively release the first lock part 2111 through the second release mechanism 400 or the first release mechanism 300.

[0243] The following describes the operation of the positioning component 100 in the first embodiment, taking the detachable connection between the first vehicle body 500 and the first positioning component 110 as an example. The positioning component 100 is connected to the car seat, and the first vehicle body 500 is connected to the first positioning component 110. When the first vehicle body 500 is oriented towards the first direction F1 (i.e., towards the front of the car) along with the first positioning component 110, the first limiting mechanism 140 can restrict the first vehicle body 500 from being detached from the first positioning component 110 (the specific principle can be found above). In other words, when the first vehicle body 500 is connected to the first positioning component 110 and is oriented towards the first direction F1, the first vehicle body 500 cannot be detached to replace the second vehicle body 600. When the first vehicle body 500 is oriented towards the first direction F1 along with the first positioning component 110, the second locking part 2112 inserts into the locking recess 212 of the first positioning component 110 to restrict the rotation of the first positioning component 110 relative to the second positioning component 120, so that the first vehicle body 500 remains oriented towards the first direction F1. When it is necessary to change the orientation of the first vehicle body 500, the user can operate the second unlocking mechanism 400 (operate the second operating member 420) to disengage the second locking part 2112 from the locking recess 212. Subsequently, under the action of the rotational movement mechanism 190, the first positioning component 110 can be rotated to any one of the directions F2, F3, or F4. It should be noted that when the first vehicle body 500 rotates with the first positioning component 110 to face the third direction F3, the first locking part 2111 inserts into the locking recess 212 to keep the first vehicle body 500 in the third direction F3. When it is necessary to change the orientation of the first vehicle body 500 again, the user can operate the second release mechanism 400 or the first release mechanism 300 to make the first lock part 2111 disengage from the locking recess 212.

[0244] Suppose it is necessary to detach the first vehicle body 500 from the first positioning component 110 and connect the second vehicle body 600 to the first positioning component 110. As described above, the orientation of the first positioning component 110 can be changed to face any one of the second direction F2, the third direction F3, or the fourth direction F4. When the first positioning component 110 faces a direction other than the first direction F1, the first limiting mechanism 140 allows the first vehicle body 500 to be detached from the first positioning component 110 (see above for the specific principle). When the second vehicle body 600 is connected to the first positioning component 110, the second limiting mechanism 170 limits the angular range of rotation of the first positioning component 110 relative to the second positioning component 120, preventing the first positioning component 110 from rotating to face the first direction F1 (see above for the specific principle). When the first positioning component 110 is facing the third direction F3, the first locking part 2111 automatically inserts into the locking recess 212 of the first positioning component 110, so that the second vehicle body 600 can maintain its orientation towards the third direction F3. When it is necessary to change the orientation of the second vehicle body 600, the user can only release the first positioning component 500 and the second positioning component 600 by operating the first unlocking mechanism 300 to disengage the first locking part 2111 from the locking recess 212.

[0245] See Figures 52 to 54 The second embodiment of this application provides another positioning component 100, which is used to install the first vehicle body 500 or the second vehicle body 600 to a car seat. Specifically, the positioning component 100 includes a first positioning component 110, a second positioning component 120, a third positioning component 130, and an extension mechanism 230. The third positioning component 130 is detachably installed on the car seat and has a seat connection plug 125 and a support leg 126. The seat connection plug 125 is mainly used to fix the third positioning component 130 to the car seat, and the support leg 126 is used to abut against the floor inside the vehicle. The second positioning component 120 is rotatably disposed on the third positioning component 130, and the first positioning component 110 is movably disposed on the second positioning component 120 and has an extended state and a retracted state. The first positioning component 110 is used for detachable connection with the first vehicle body 500 or the second vehicle body 600. Thus, by rotating the second positioning component 120, the first positioning component 110 can be oriented towards a first direction F1 (see...). Figure 52 ), second direction F2 (see Figure 54 ), third-party F3 (see Figure 53 ) and the fourth direction F4 (see Figure 57In any direction of the ) . Specifically, in this embodiment, the second positioning component 120 and the third positioning component 130 are both approximately circular in shape, and their radii are approximately the same. When the first positioning component 110 is in the retracted state, the first positioning component 110 and the second positioning component 120 overlap vertically (see Figures 52 to 54 When the first positioning component 110 is in the extended state, the first positioning component 110 is vertically offset relative to the second positioning component 120 (see...). Figure 55 and Figure 57 The extension mechanism 230 is connected between the first positioning component 110 and the second positioning component 120, and is used to guide the first positioning component 110 to switch between an extended state and a retracted state.

[0246] It should be noted that in this embodiment, "the second positioning component 120 is rotatably disposed on the third positioning component 130" means that the second positioning component 120 can rotate around an axis relative to the third positioning component 130. In this embodiment, the second positioning component 120 is circular, and the axis is its center; in other embodiments, the second positioning component 120 can be other symmetrical shapes (e.g., ellipse, rectangle, etc.), and the axis can be the geometric center of the second positioning component 120 or a position off-center from the geometric center; alternatively, the second positioning component 120 can also be an asymmetrical shape, and the axis can be set according to actual needs.

[0247] See Figure 55 and Figure 56 In one embodiment, the extension mechanism 230 includes a first main connecting rod 231, a second main connecting rod 232, and a first auxiliary rod 233. One of the first main connecting rod 231 and the second main connecting rod 232 is connected to the first positioning assembly 110, and the other is connected to the second positioning assembly 120. The two ends of the first auxiliary rod 233 are pivotally connected to the first main connecting rod 231 and the second main connecting rod 232, respectively, so that the first main connecting rod 231 and the second main connecting rod 232 can move closer to or further apart from each other. Specifically, when the first main connecting rod 231 and the second main connecting rod 232 move closer to each other, the first positioning assembly 110 is in a retracted state. When the first main connecting rod 231 and the second main connecting rod 232 move further apart from each other, the first positioning assembly 110 is in an extended state.

[0248] See Figure 56 In one embodiment, one end of the first main connecting rod 231 and one end of the second main connecting rod 232 are respectively provided with gears 234, and the two gears 234 mesh with each other. The two ends of the first auxiliary rod 233 are pivotally connected to the center of the two gears 234 respectively.

[0249] See also Figure 56In one embodiment, the extension mechanism 230 further includes a second auxiliary rod 237, the two ends of which are pivotally connected to the centers of the two gears 234, and the second auxiliary rod 237 and the first auxiliary rod 233 are located on opposite sides of the gears 234. This improves the stability of the first main connecting rod 231 and the second main connecting rod 232 during the process of them moving closer or further apart.

[0250] I've come to pay my respects again. Figure 56 In one embodiment, the extension mechanism 230 further includes a first reinforcing rod 235, a second reinforcing rod 238, a third auxiliary rod 236, and a fourth auxiliary rod 239. The first reinforcing rod 235 is pivotally connected to the third auxiliary rod 236, and the end of the first reinforcing rod 235 away from the third auxiliary rod 236 is pivotally connected to the first auxiliary rod 233. The end of the third auxiliary rod 236 away from the first reinforcing rod 235 is pivotally connected to the first main connecting rod 231, so that the first main connecting rod 231, the first auxiliary rod 233, the first reinforcing rod 235, and the third auxiliary rod 236 form a four-bar linkage structure (hereinafter referred to as the first linkage assembly). The second reinforcing rod 238 is pivotally connected to the fourth auxiliary rod 239, and the end of the second reinforcing rod 238 away from the fourth auxiliary rod 239 is connected to the second auxiliary rod 237. The end of the fourth auxiliary rod 239 away from the second reinforcing rod 238 is pivotally connected to the second main connecting rod 232, so that the second main connecting rod 232, the second auxiliary rod 237, the second reinforcing rod 238, and the fourth auxiliary rod 239 also form a four-bar linkage structure (hereinafter referred to as the second linkage assembly). Specifically, the third auxiliary rod 236 is connected to the second positioning assembly 120, and the fourth auxiliary rod 239 is connected to the first positioning assembly 110.

[0251] See Figure 54 and Figure 55 Before the first positioning component 110 is stretched outward, the first link assembly and the second link assembly are both rectangular and overlap. During the outward stretching of the first positioning component 110, the first link assembly deforms into a parallelogram, and the angles of the four interior angles of the parallelogram gradually change. Similarly, the second link assembly deforms into a parallelogram, and the angles of the four interior angles of the parallelogram gradually change. In this embodiment, during the outward stretching of the first positioning component 110, the first and second link assemblies change from overlapping to mirror-symmetric.

[0252] In one embodiment, such as Figure 55 As shown, the positioning component 100 includes at least one extension mechanism 230. Specifically, in this embodiment, the positioning component 100 includes two extension mechanisms 230, and the two extension mechanisms 230 are arranged side by side.

[0253] See Figure 58In one embodiment, the positioning component 100 further includes a second locking mechanism 240. The second locking mechanism 240 is disposed between the first positioning component 110 and the second positioning component 120. The second locking mechanism 240 has a second locked state and a second unlocked state. When the second locking mechanism 240 is in the second locked state, the first positioning component 110 is restricted from moving relative to the second positioning component 120, that is, the first positioning component 110 cannot switch between an extended state and a retracted state. When the second locking mechanism 240 is in the second unlocked state, the first positioning component 110 is allowed to move relative to the second positioning component 120, that is, the first positioning component 110 can switch between an extended state and a retracted state.

[0254] See also Figure 58 In one embodiment, the second locking mechanism 240 includes a second locking member 241 pivotally connected to the first positioning assembly 110. The second locking member 241 has an operating end 2411 and a locking end 2412, and the second positioning assembly 120 is provided with a locking engagement portion 122 (e.g., a mating hole). The second locking member 241 is pivotable between a locked position and an unlocked position. When the second locking member 241 is in the locked position, the locking end 2412 can lock into the locking engagement portion 122. When the second locking member 241 is in the unlocked position, the locking end 2412 can disengage from the locking engagement portion 122. The operating end 2411 can be operated to pivot the second locking member 241 from the locked position to the unlocked position. Specifically, the pivot point between the second locking member 241 and the first positioning component 110 is located between the operating end 2411 and the locking end 2412, so that the second locking member 241 is roughly in a "seesaw" structure when the first positioning component 110 pivots, that is, when the operating end 2411 is pressed, the locking end 2412 is raised so as to be able to disengage from the locking engagement part 122.

[0255] In one embodiment, such as Figure 58 As shown, the second locking mechanism 240 also includes a button 242, which abuts against the operating end 2411. When it is necessary to release the second locking member 241, the user can drive the second locking member 241 to the unlocked position by pushing the button 242.

[0256] Of course, in some embodiments not shown, the second locking mechanism 240 may also be a latch structure. For example, the latch structure includes a male latch and a female latch that can engage with each other, one of which is disposed in the first positioning component 110 and the other in the second positioning component 120. Alternatively, the second locking member 241 may be a locking pin operable to move in the vertical direction. By inserting or disengaging the second locking member 241 into or out of the locking engagement part 122, locking or unlocking between the first positioning component 110 and the second positioning component 120 is achieved.

[0257] The operation of the second embodiment described above is illustrated below using the example of a detachable connection between the first carrier body 500 and the first positioning component 110. The positioning component 100 is connected inside the vehicle, and the first carrier body 500 is connected to the first positioning component 110. Assuming the first carrier body 500 is used facing the first direction F1, when it is necessary to remove a child from the first carrier body 500, the user operates the first positioning component 110 to rotate relative to the second positioning component 120 to face the second direction F2 or the fourth direction F4, so that the first positioning component 110 faces the side door of the vehicle, allowing the child to face the side door. Then, the user operates button 242, causing the second locking member 241 to release from the locking engagement part 122. The user pulls the first positioning component 110 towards the second direction F2 or the fourth direction F4, stretching and deforming the extension mechanism 230, and the first carrier body 500 faces the second direction F2 or the fourth direction F4. The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0258] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A positioning component, characterized in that, It includes a first positioning component and a second positioning component. The first positioning component is rotatably mounted on the second positioning component. The first positioning component is used for detachably connecting to a vehicle body, which can be either a first vehicle body or a second vehicle body. When the first positioning component is used to connect with the first vehicle body and rotates relative to the second positioning component to face the first direction, the first positioning component can prevent the first vehicle body from disengaging from the first positioning component; When the first positioning component is used to connect with the second vehicle body, the first positioning component is restricted to rotate relative to the second positioning component toward the first direction.

2. The positioning component according to claim 1, characterized in that, Also includes: A first connecting mechanism is disposed on the first positioning component and has a locked state and an unlocked state. When the first connecting mechanism is in the locked state, it is connected to the vehicle body; when it is in the unlocked state, it is detached from the vehicle body. A first limiting mechanism, disposed between the first positioning component and the second positioning component, is used to selectively allow or restrict the first connecting mechanism to switch between the locked state and the unlocked state.

3. The positioning component according to claim 2, characterized in that, Also includes: A locking and retaining mechanism is movably disposed on the first positioning component and is used to maintain the connection between the first connecting mechanism and the vehicle body; When the first positioning component is used to connect to the first vehicle body and is facing the first direction, the first limiting mechanism enters the movement path of the locking and retaining mechanism, restricting the movement of the locking and retaining mechanism, thereby restricting the first connecting mechanism from switching from the locked state to the unlocked state.

4. The positioning component according to claim 2 or 3, characterized in that, The first restrictive mechanism includes: A first limiting groove is disposed on the side of the second positioning component facing the first positioning component; and The first limiting member is movably disposed in the first positioning component and can be inserted into or retracted from the first limiting groove; Specifically, when the first limiting member is inserted into the first limiting groove, the first limiting member allows the first connecting mechanism to switch to the unlocked state; when the first limiting member retracts from the first limiting groove, the first limiting member restricts the first connecting mechanism from switching to the unlocked state; and when the first positioning component rotates relative to the second positioning component to face the first direction, the first limiting member retracts from the first limiting groove.

5. The positioning component according to claim 4, characterized in that, The first positioning component has a rotation axis, and the first limiting member is offset from the rotation axis; A straight line passing through the rotation axis and perpendicular to the first direction is defined as the reference line. When the first positioning component faces the first direction, the first limiting member and the first limiting groove are misaligned and located on both sides of the reference line.

6. The positioning component according to claim 5, characterized in that, The first positioning component has a circular structure, the rotation axis is the center of the first positioning component, the first limiting groove is a semi-circular groove, the radius of the semi-circular groove is the distance between the center of the first limiting member and the center of the first positioning component, and when the first positioning component rotates relative to the second positioning component to face away from the first direction, the first limiting member is located at the midpoint of the first limiting groove.

7. The positioning component according to claim 4, characterized in that, The first limiting member has a sliding inclined surface at one end facing the second positioning component. The sliding inclined surface can push against the first limiting groove so that the first limiting member moves away from the first limiting groove in a direction away from the second positioning component.

8. The positioning component according to claim 7, characterized in that, The first positioning component includes a first housing, and the first connecting mechanism includes a locking hook, which is pivotally connected to the first housing and has a locked position and an unlocked position; When the engaging hook is in the locked position, the engaging hook is used to engage and lock with the vehicle body.

9. The positioning component according to claim 8, characterized in that, The first housing has a first mounting cavity, and the positioning assembly further includes: A locking and retaining mechanism is movably disposed within the first mounting cavity. When the engaging hook is driven to the locking position, the locking and retaining mechanism is used to lock the engaging hook in the locking position.

10. The positioning component according to claim 9, characterized in that, The locking and retaining mechanism includes a first locking member, which is movably disposed within the first mounting cavity and has a first position and a second position. One of the first locking member and the engaging hook is provided with a locking groove, and the other is provided with an engaging portion; when the first locking member is in the first position, the locking groove engages with the engaging portion to lock the engaging hook in the locked position; when the first locking member is in the second position, the locking groove separates from the engaging portion to allow the engaging hook to switch between the locked position and the unlocking position.

11. The positioning component according to claim 10, characterized in that, When the first limiting member retracts from the first limiting groove, the first limiting member is located in the movement path of the first locking member to restrict the first locking member from switching from the first position to the second position; When the first limiting member is inserted into the first limiting groove, the first limiting member deviates from the movement path of the first locking member to allow the first locking member to switch from the first position to the second position.

12. The positioning component according to claim 1, characterized in that, It also includes a second limiting mechanism, which is disposed between the first positioning component and the second positioning component, for selectively limiting the angular range of rotation of the first positioning component relative to the second positioning component.

13. The positioning component according to claim 12, characterized in that, The second limiting mechanism has a first state and a second state. When the second limiting mechanism is in the first state, it restricts the first positioning component from rotating relative to the second positioning component to face the first direction. When the second limiting mechanism is in the second state, it allows the first positioning component to rotate relative to the second positioning component to face the first direction. The positioning component further includes an elastic element; wherein the elastic element constantly keeps the second limiting mechanism in the first state, and when the first positioning component is used to connect to the first vehicle body, the second limiting mechanism is in the second state by overcoming the elastic force of the elastic element through the first vehicle body; or, the elastic element constantly keeps the second limiting mechanism in the second state, and when the first positioning component is used to connect to the second vehicle body, the second limiting mechanism is in the first state by overcoming the elastic force of the elastic element through the second vehicle body.

14. The positioning component according to claim 13, characterized in that, The second restrictive mechanism includes: A second limiting groove is disposed in one of the second positioning component and the first positioning component; and The second limiting member is movably disposed in the other of the second positioning component and the first positioning component and can be inserted into or retracted from the second limiting groove; When the first positioning component is used to connect the second carrier body, the second limiting member is inserted into the second limiting groove, and the first positioning component is restricted to rotate relative to the second positioning component to face the first direction.

15. The positioning component according to claim 14, characterized in that, The first positioning component has a rotation axis, and the second limiting member is offset from the rotation axis; A straight line passing through the rotation axis and perpendicular to the first direction is defined as the reference line. When the first positioning component is facing the first direction, the second limiting member and the second limiting groove are misaligned and located on both sides of the reference line.

16. The positioning component according to claim 15, characterized in that, The first positioning component has a circular structure, the rotation axis is the center of the first positioning component, the second limiting groove is a semi-circular groove, the radius of the semi-circular groove is the distance between the center of the second limiting member and the center of the first positioning component, and when the first positioning component rotates relative to the second positioning component to face away from the first direction, the second limiting member is located at the midpoint of the second limiting groove.

17. The positioning component according to claim 14, characterized in that, It also includes a linkage mechanism, which is disposed in the first positioning component and is used to drive the second limiting member. The linkage mechanism can drive the second limiting member to retract or insert into the second limiting groove.

18. The positioning component according to claim 17, characterized in that, The linkage mechanism includes a linkage member, which is movably disposed in the first positioning component and has a third position and a fourth position. A first inclined groove is formed at the first end of the linkage member, and the end of the second limiting member opposite to the second limiting groove is slidably disposed in the first inclined groove. When the linkage member moves to the third position, the second limiting member is inserted into the second limiting groove. When the linkage member moves to the fourth position, the second limiting member is retracted from the second limiting groove.

19. The positioning component according to claim 18, characterized in that, The linkage mechanism further includes a pressing member, which is movably disposed in the first positioning assembly and has a fifth position and a sixth position. The pressing member has a second inclined groove, and the second end of the linkage member is slidably disposed within the second inclined groove. When the pressing member is in the fifth position, the linkage member is in the third position; when the pressing member is in the sixth position, the linkage member is in the fourth position.

20. The positioning component according to claim 19, characterized in that, When the first positioning component is used to connect with the second vehicle body, the pressing member is in the fifth position and the linkage member is in the third position.

21. The positioning component according to claim 1, characterized in that, The positioning component further includes a first locking mechanism, which is disposed between the first positioning component and the second positioning component. The first locking mechanism has a first locked state and a first unlocked state. When the first locking mechanism is in the first locked state, the first positioning component is restricted from rotating relative to the second positioning component. When the first locking mechanism is in the first unlocked state, the first positioning component is allowed to rotate relative to the second positioning component.

22. The positioning component according to claim 21, characterized in that, The first locking mechanism includes: A locking component, movably disposed on one of the second positioning component and the first positioning component; and A locking recess is provided in the other of the second positioning component and the first positioning component; When the locking component is inserted into the locking recess, the first positioning component and the second positioning component are locked together to restrict the rotation of the first positioning component relative to the second positioning component; when the locking component is disengaged from the locking recess, the first positioning component can rotate relative to the second positioning component.

23. The positioning component according to claim 22, characterized in that, The locking assembly includes a first locking part, which is movably disposed in one of the second positioning assembly and the first positioning assembly along the first direction. When the first positioning component rotates relative to the second positioning component to either facing the first direction or away from the first direction, the first locking part can lock into the locking recess.

24. The positioning component according to claim 23, characterized in that, The positioning component further includes a first release mechanism, which is operably connected to the first lock and used to drive the first lock out of the locking recess.

25. The positioning component according to claim 24, characterized in that, The first locking part is movably disposed on the second positioning component, the locking recess is disposed on the first positioning component, and the first unlocking mechanism includes: The first driving member is pivotally connected to the second positioning component and pivotally connected to the first locking part; A first operating element is operably disposed on the second positioning component; and A first traction component is connected to the first operating component and the first driving component, respectively; When the first operating member is operated, the first operating member drives the first driving member to pivot through the first traction component, so that the first driving member can drive the first locking part to disengage from the locking recess.

26. The positioning component according to any one of claims 23 to 25, characterized in that, The locking assembly further includes a second locking part, which is movably disposed in one of the second positioning assembly and the first positioning assembly, and the second locking part and the first locking part are disposed opposite to each other along the first direction; When the first positioning component rotates relative to the second positioning component to either facing the first direction or away from the first direction, the second locking portion can lock into the locking recess.

27. The positioning component according to claim 1, characterized in that, The second positioning component includes a second housing, and a protrusion is provided on the upper surface of the second housing. The protrusion forms a limiting protrusion, and a groove structure is formed between the limiting protrusion and the upper surface of the second housing. The first positioning component includes a first housing. When the first positioning component is facing the first direction or away from the first direction relative to the second positioning component, a portion of the edge of the first housing is inserted into the groove structure.

28. The positioning component according to claim 27, characterized in that, The second positioning component includes a frame and at least one first support mechanism. The first support mechanism includes a first support member and a second support member. The first support member is fixed to the frame, and the second support member is supported on the first support member. When the first positioning component is facing the first direction or away from the first direction relative to the second positioning component, at least a portion of the second support member is located below the first positioning component.

29. The positioning component according to claim 1, characterized in that, The second positioning component further includes a third support mechanism and a second housing. The second housing includes a second top cover and a second bottom cover connected to each other. The third support mechanism includes a plurality of support columns. Each support column includes a bottom column disposed on the second bottom cover and a top column disposed on the second top cover. The bottom column is connected to the top column.

30. A vehicle, characterized in that, include: The positioning component according to any one of claims 1-29; as well as The vehicle body is detachably connected to a first positioning component of the positioning assembly, wherein the vehicle body is either a first vehicle body or a second vehicle body.

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