Positioning assemblies

Abstract

A positioning assembly (B100), the positioning assembly (B100) comprising: a first positioning component (B110), a second positioning component (B120) and a second release member (B250). The second positioning component (B120) is used for connecting to an automobile seat. The first positioning component (B110) is used for connecting to a carrier body (B300), is rotatably arranged on the second positioning component (B120), and can rotate relative to the second positioning component (B120) to face a first direction (F1) and to face a second direction (F2), the first direction (F1) and the second direction (F2) intersecting each other. When the first positioning component (B110) rotates to face the second direction (F2), the first positioning component (B110) moves in the second direction (F2) relative to the second positioning component (B120). The second release member (B250) is arranged on the first positioning component (B110) and is used for disassembling and releasing the carrier body (B300) from the first positioning component (B110). When the first positioning component (B110) rotates relative to the second positioning component (B120) to face the second direction (F2), the second release member (B250) is pulled outward in the second direction (F2) along with the first positioning component (B110) relative to the second positioning component (B120).

Description

Positioning components

[0001] Related applications

[0002] This application claims priority to Chinese patent applications with application number 2024103666569, filed on March 27, 2024, entitled “Carrier and positioning component thereof”; application number 2024104068276, filed on April 3, 2024, entitled “Positioning component”; and application number 2025103482305, filed on March 21, 2025, entitled “Positioning component”, the entire text of which is hereby incorporated by reference. Technical Field

[0003] The present application relates to the technical field of infant products, and in particular to a positioning component. Background Art

[0004] A child safety seat, also known as a child restraint system (CRS), is a seat designed specifically for children and installed inside a vehicle such as a car, with the aim of effectively improving the safety of children. Typically, a child safety seat includes a base and a carrier body disposed on the base, wherein the carrier body can rotate and slide relative to the base so that when it is in a sideways position, it can protrude laterally relative to the base, making it easier for users to carry infants in or out. However, the currently common carrier body protrudes laterally relative to the base, resulting in a pinching area on the base, which may pinch the user's hands or other parts, causing unnecessary injuries, and can also easily cause foreign objects to fall into it, causing the carrier body to become stuck and unable to be used normally. Summary of the Invention

[0005] Based on this, it is necessary to provide a positioning component to address the above problems, which can effectively prevent pinching.

[0006] One aspect of the present application provides a positioning assembly, including: a second positioning assembly, on which two protrusions are formed at intervals along a first direction; a first positioning assembly, rotatably disposed on the second positioning assembly and located between the two protrusions, when the first positioning assembly is rotated relative to the second positioning assembly to face the second direction, the first positioning assembly is pulled outward relative to the second positioning assembly along the second direction, and the second direction is intertwined with the first direction; and a protective mechanism, which is disposed on the second positioning assembly and can slide relative to the second positioning assembly, and the first positioning assembly can rotate relative to the protective mechanism.

[0007] Another aspect of the present application provides a positioning assembly, including: a second positioning assembly; a first positioning assembly, rotatably disposed on the second positioning assembly, when the first positioning assembly is rotated relative to the second positioning assembly to face a second direction, the first positioning assembly is displaced along the second direction relative to the second positioning assembly; and a protective mechanism, disposed on the second positioning assembly and slidable relative to the second positioning assembly, and the first positioning assembly can rotate relative to the protective mechanism.

[0008] In one embodiment, the protective mechanism is mounted outside the first positioning assembly. When the first positioning assembly switches between the first direction and the second direction relative to the second positioning assembly, the first positioning assembly drives and cooperates with the protective mechanism to move the protective mechanism along the second direction on the second positioning assembly.

[0009] In one embodiment, a groove structure is formed on each side of the two protrusions facing the first positioning component, and the protective mechanism includes a protective shell, which is an annular structure and is arranged around the outer periphery of the first positioning component, and the outer edge of the protective shell is slidably arranged in the two groove structures.

[0010] In one embodiment, when the first positioning assembly is displaced relative to the second positioning assembly along the second direction, a portion of the outer edge of the protective shell is inserted into the two groove structures.

[0011] In one embodiment, the protective shell has a retaining recess, and the outer edge of the first positioning component is inserted into the retaining recess to limit the first positioning component from being separated from the protective shell when the first positioning component rotates relative to the protective shell.

[0012] In one embodiment, the protective shell includes: a cover body, which is an annular structure and is arranged around the outer periphery of the first positioning component, and the outer edge of the cover body is slidably arranged in the two groove-shaped structures; and a first limiting plate, which is arranged on one side of the cover body and is arranged at an angle to the inner ring wall of the cover body, the first limiting plate and the inner ring wall of the cover body form the holding recess, and the bottom wall of the holding recess is the inner ring wall of the cover body.

[0013] In one embodiment, the inner ring wall of the cover body has a circular structure, two first limiting plates are provided, each of the first limiting plates has an arc-shaped structure, and the two first limiting plates are arranged opposite to each other around the circumference of the cover body; and / or, the first limiting plates are integrally formed on the cover body.

[0014] In one embodiment, the protective shell also includes a second limiting plate, which is arranged on the other side of the cover body and is arranged at an angle to the inner ring wall of the cover body. The first limiting plate, the inner ring wall of the cover body and the second limiting plate are sequentially enclosed to form the holding recess.

[0015] In one embodiment, the protective shell is provided with at least one first locking hole, the first positioning assembly is provided with at least one second locking hole, and the first locking hole corresponds to the second locking hole; a locking tongue is movably provided in the groove structure, and when the first positioning assembly is rotated relative to the second positioning assembly to face the first direction, the locking tongue can pass through the corresponding first locking hole and the second locking hole to limit the rotation of the first positioning assembly.

[0016] Another aspect of the present application provides a carrier, comprising: a carrier body and the positioning assembly as described above, wherein the carrier body is connected to the first positioning assembly.

[0017] Another aspect of the present application provides a positioning assembly for mounting a carrier body on a car seat, comprising: a second positioning assembly for connecting to the car seat, the second positioning assembly being provided with a track; a first positioning assembly for connecting to the carrier body, the first positioning assembly being provided with a sliding member, the sliding member sliding along the track to allow the first positioning assembly to rotate and slide relative to the second positioning assembly; and a shielding mechanism, arranged in the second positioning assembly and located at the track to selectively shield at least a portion of the track.

[0018] In one embodiment, the shielding mechanism includes a shielding member, and the shielding member includes a first shielding piece and a second shielding piece. The first shielding piece and the second shielding piece are respectively arranged on opposite sides of the track and extend in opposite directions, and a sliding gap is provided between the first shielding piece and the second shielding piece, and the sliding gap is connected to the track.

[0019] In one embodiment, the sliding member includes a first sliding member and a second sliding member, the first sliding member includes a first sliding rod, the second sliding member includes a second sliding rod, the first sliding rod and the second sliding rod are respectively connected to the first positioning assembly and are both slidably arranged in the track, and the diameter D1 of the first sliding rod and / or the diameter D2 of the second sliding rod is greater than the width W1 of the sliding gap.

[0020] In one embodiment, the shielding member further includes a first transition piece, which is provided at an end of the track and connects the first shielding piece and the second shielding piece.

[0021] In one embodiment, the shielding mechanism includes a shielding member, a sliding gap is formed on the shielding member, at least one end of the sliding gap passes through the shielding member, the shielding member covers the track, the sliding gap is connected to the track, and the positive projection of the sliding gap on the second positioning component is located on the track.

[0022] In one embodiment, the shielding member is an elastic soft structure; or, the shielding member is made of rubber, silicone, TPV, TPR, TPO, TPU, TPEE or TEP.

[0023] In one embodiment, the shielding mechanism includes a shielding member, and the shielding member is arranged on a side of the second positioning assembly facing the first positioning assembly.

[0024] In one embodiment, a limiting recess is provided on the side of the second positioning assembly facing the first positioning assembly, and the limiting recess is arranged around the track, and the shielding member is arranged in the limiting recess.

[0025] In one embodiment, the track includes a first track and a second track arranged crosswise, the first track is divided by the second track to form a first track segment and a second track segment connected, the second track is divided by the first track to form a third track segment and a fourth track segment connected, and at least one of the first track segment, the second track segment, the third track segment and the fourth track segment includes a first section and a second section connected; the shielding member includes a main shielding member, and the main shielding member is provided on at least one of the second sections; and / or the shielding member includes an auxiliary shielding member, and the auxiliary shielding member is provided on at least one of the first sections.

[0026] In one embodiment, the shielding mechanism includes a shielding member, and the shielding member is arranged on a side of the second positioning assembly facing away from the first positioning assembly.

[0027] In one embodiment, the shielding member comprises a connecting portion and a shielding portion that are connected to each other, the connecting portion is provided at an edge of the track, and the shielding portion extends obliquely relative to the connecting portion toward an inner direction of the track.

[0028] In one embodiment, the shielding mechanism further includes an installation assembly, which includes a pressing member located on a side of the second positioning assembly facing away from the first positioning assembly and arranged around the track, and the pressing member is used to press and fix the connecting portion to the edge of the track.

[0029] In one embodiment, the shielding member includes a first shielding piece and a second shielding piece, and the pressing member includes a first pressing piece, a second transition piece and a second pressing piece connected in sequence, and the second transition piece is arranged at an angle to the first pressing piece and the second pressing piece respectively, the first pressing piece is used to press and fix the connecting part of the first shielding piece to one side of the track, and the second pressing piece is used to press and fix the connecting part of the second shielding piece to the other side of the track.

[0030] In one embodiment, the shielding member includes a first shielding piece and a second shielding piece, and the pressing member includes a first pressing piece and a second pressing piece, the first pressing piece is used to press and fix the connecting portion of the first shielding piece to one side of the track, and the second pressing piece is used to press and fix the connecting portion of the second shielding piece to the other side of the track.

[0031] In one embodiment, the pressing member further includes a second transition piece, which is connected between the first pressing piece and the second pressing piece and is disposed at an angle to the first pressing piece and the second pressing piece respectively.

[0032] In one embodiment, the mounting assembly further includes a fastener, the second positioning assembly is provided with at least one first connecting hole, the pressing member is provided with at least one second connecting hole, and the fastener is provided with at least one fastener, and the fastener passes through the first connecting hole and the second connecting hole to connect the pressing member to the second positioning assembly.

[0033] In one embodiment, the track includes a first track and a second track that are cross-arranged; the sliding member includes a first sliding member and a second sliding member, the first sliding member slides along one of the first track or the second track, and the second sliding member slides along the other of the first track or the second track, so that the first positioning component slides simultaneously with the rotation of the second positioning component; the shielding mechanism includes at least one shielding member, and the first track and / or the second track are provided with the shielding member.

[0034] In one embodiment, the first sliding member includes a first sliding rod, the second sliding member includes a second sliding rod, the first sliding rod is connected to the first positioning assembly and is slidably disposed in the second track, the second sliding rod is connected to the first positioning assembly and is slidably disposed in the first track, and the diameter D1 of the first sliding rod and / or the diameter D2 of the second sliding rod is greater than the width W1 of the sliding gap.

[0035] In one embodiment, the second positioning component is provided with a first protrusion and a second protrusion spaced apart along the first direction, and a limiting protrusion is formed on the first protrusion and the second protrusion, and a groove structure is formed between the limiting protrusion and the upper surface of the second positioning component; when the first positioning component is rotated relative to the second positioning component to face the first direction, a portion of the edge of the first positioning component is inserted into the groove structure.

[0036] In one embodiment, an avoidance recess is formed on the first positioning assembly, and when the first positioning assembly is rotated relative to the second positioning assembly to face the first direction, the bottom of the avoidance recess is inserted into the groove structure; and / or, the distance between the side wall of the avoidance recess and the limiting protrusion of the first protrusion is not less than 10 mm or not more than 5 mm.

[0037] In one embodiment, the shielding member has an initial state and a deformed state. When the sliding member moves out of the sliding gap, the shielding member resets to the initial state to block the track; when the sliding member moves into the sliding gap, the shielding member is squeezed to be in the deformed state.

[0038] Another aspect of the present application provides a positioning assembly, which includes: a second positioning assembly for connecting to a car seat; a first positioning assembly for connecting to a carrier body, which is rotatably arranged on the second positioning assembly and can be rotated relative to the second positioning assembly to face a first direction and a second direction, and the first direction and the second direction are staggered; when the first positioning assembly is rotated to face the second direction, the first positioning assembly is displaced along the second direction relative to the second positioning assembly; and a second releasing member is provided on the first positioning assembly and is used to remove and unlock the carrier body from the first positioning assembly, and when the first positioning assembly is rotated relative to the second positioning assembly to face the second direction, the second releasing member is pulled outward in the second direction along with the first positioning assembly relative to the second positioning assembly.

[0039] In one embodiment, the second release member is disposed at a front end of the first positioning assembly.

[0040] In one embodiment, the first positioning assembly is provided with a sliding member, and the second positioning assembly is provided with a track, and the sliding member slides along the track so that the first positioning assembly rotates and slides relative to the second positioning assembly.

[0041] In one embodiment, when the second positioning assembly is connected to the car seat, the first direction is the front direction and / or the rear direction of the car, and the second direction is the left direction and / or the right direction of the car.

[0042] In one embodiment, the positioning assembly further includes: a first connecting mechanism, which is arranged in the first positioning assembly and has a locked state and an unlocked state, and when in the locked state, the first connecting mechanism is connected to the carrier body; when in the unlocked state, the first connecting mechanism is detached from the carrier body; and a locking and holding mechanism, including a first locking member, which is movably arranged in the first positioning assembly and has a first position and a second position; when the first locking member is in the first position, the first connecting mechanism is in the locked state, and when the first locking member is in the second position, the first connecting mechanism is in the unlocked state, and the second releasing member is driven to cooperate with the first locking member, and the second releasing member can be operated to drive the first locking member to move from the first position to the second position.

[0043] In one embodiment, the second locking member is movably provided on the first positioning assembly and has an unlocking position and a locking position. The second locking member is provided with a pushing portion, and the first locking member is also provided with a pushing portion. The pushing portion is driven to cooperate with the pushing portion. When the second locking member is in the locking position, the first locking member is in the first position. When the second locking member is in the unlocking position, the first locking member is in the second position.

[0044] In one embodiment, the pushing portion includes a pushing recess, which extends along the moving direction of the second release member, and the pushing portion is movably inserted into the pushing recess. When the second operating member is operated and moves from the locked position to the unlocked position, the rear side wall of the pushing recess pushes the pushing portion to drive the first locking member to switch from the first position to the second position.

[0045] In one embodiment, the positioning assembly further comprises a first release member movably provided on the first positioning assembly, the first release member drivingly cooperates with the first locking member, and the first release member can be operated to drive the first locking member to move from the first position to the second position.

[0046] In one embodiment, the first release member is provided with a driving inclined surface, and the driving inclined surface extends obliquely along the moving direction of the first release member, and the first locking member is provided with a driving portion, and the driving portion is suitable for being pushed by the driving inclined surface to move the first locking member from the first position to the second position.

[0047] In one embodiment, the moving direction of the first release member is intersected with the moving direction of the first locking member; and the moving direction of the second release member is parallel to the moving direction of the first locking member.

[0048] In one embodiment, the first release member and the second release member are arranged opposite to each other along the circumferential direction of the first positioning assembly, and the second release member is arranged at the front end of the first positioning assembly, and the first release member is arranged at the rear end of the first positioning assembly.

[0049] In one embodiment, the positioning assembly further includes a second release member, which is movably provided on the first positioning assembly and has an unlocked position and a locked position, and the second release member is provided with a push recess; the first locking member is further provided with a push portion, and the push portion is movably inserted into the push recess. When the second release member is operated and moves from the locked position to the unlocked position, the second release member drives the push portion to move through the push recess to drive the first locking member to switch from the first position to the second position.

[0050] Another aspect of the present application provides a carrier, comprising: a carrier body and the positioning assembly as described above, wherein the first positioning assembly is connected to the carrier body, and the second positioning assembly is used to connect to the car seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The drawings that constitute a part of this application are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0053] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only for illustrative purposes and are not necessarily drawn to true scale.

[0054] FIG1 is a perspective view of a partial structure of a carrier in an embodiment of the first aspect of the present application;

[0055] FIG2 is a top view of a positioning assembly in an embodiment of the first aspect of the present application, wherein the first positioning assembly is directed toward the front of the vehicle in a first direction;

[0056] FIG3 is a perspective view of a first positioning assembly in the positioning assembly shown in FIG2 ;

[0057] FIG4 is a perspective view of a second positioning assembly in the positioning assembly shown in FIG2 ;

[0058] FIG5 is a side view of the second positioning assembly in the positioning assembly shown in FIG2;

[0059] FIG6 is a perspective view of the protection mechanism in the positioning assembly shown in FIG2;

[0060] FIG7 is a perspective view of the protective mechanism in the positioning assembly shown in FIG2 from another perspective;

[0061] FIG8 is a top view of the positioning assembly in an embodiment of the first aspect of the present application, wherein the first positioning assembly faces rightward along the second direction;

[0062] FIG9 is a top view of a positioning assembly in an embodiment of the first aspect of the present application, wherein the first positioning assembly is directed toward the rear of the vehicle in a first direction;

[0063] FIG10 is a top view of the positioning assembly in an embodiment of the first aspect of the present application, wherein the first positioning assembly faces leftward along the second direction;

[0064] FIG11 is a perspective view of a positioning assembly in an embodiment of the first aspect of the present application, wherein the first positioning assembly faces leftward along the second direction;

[0065] FIG12 shows a cross-sectional view along line U1-U1 in FIG11;

[0066] FIG13 shows a cross-sectional view along line U2-U2 in FIG2;

[0067] FIG14 is a perspective view of a positioning assembly in an embodiment of the second aspect of the present application, wherein the first positioning assembly is oriented in a first direction;

[0068] FIG15 is a perspective view of a positioning assembly in the first embodiment of the third aspect of the present application, wherein the first positioning assembly faces the second direction;

[0069] FIG16 is a perspective view of the second positioning assembly in the positioning assembly shown in FIG14;

[0070] FIG17 is a perspective view of the second positioning assembly shown in FIG16 , with the top cover omitted;

[0071] FIG18 is an enlarged schematic diagram of the structure at circle A in FIG16 ;

[0072] FIG19 is a perspective view of the first positioning assembly in the positioning assembly shown in FIG14;

[0073] FIG20 is a perspective view of the first positioning assembly in the positioning assembly shown in FIG14 from another perspective;

[0074] FIG21 shows a cross-sectional view along line U3-U3 in FIG14 , but in FIG21 the first positioning assembly is directed toward the rear of the vehicle in the first direction;

[0075] FIG22 is an enlarged schematic diagram of the structure at circle B in FIG21;

[0076] FIG23 shows a cross-sectional view along line U4-U4 in FIG20;

[0077] FIG24 shows a cross-sectional view along line U5-U5 in FIG20 , wherein the first locking member is in the first position;

[0078] FIG25 shows a cross-sectional view along line U5-U5 in FIG20 , wherein the first locking member is in the second position;

[0079] FIG26 is a perspective view of a carrier body according to an embodiment of the second aspect of the present application;

[0080] FIG27 is an exploded view of a portion of the structure of the first positioning assembly shown in FIG20;

[0081] FIG28 is a perspective view of the first positioning assembly in the positioning assembly shown in FIG14 , wherein the connecting seat is omitted;

[0082] FIG29 is an enlarged schematic diagram of the structure at circle C in FIG28;

[0083] FIG30 is an enlarged schematic diagram of the structure at circle D in FIG28;

[0084] FIG31 is a top view of the first positioning assembly in the positioning assembly shown in FIG14 , wherein the connecting seat is omitted;

[0085] FIG32 is an enlarged schematic diagram of the structure at circle E in FIG31 ;

[0086] FIG33 is an enlarged schematic diagram of the structure at circle F in FIG17 ;

[0087] FIG34 is a perspective view of the skeleton and the first support mechanism in the second positioning assembly shown in FIG17;

[0088] FIG35 is an enlarged schematic diagram of the structure at circle G in FIG34 ;

[0089] FIG36 shows a cross-sectional view along line U6-U6 in FIG16;

[0090] FIG37 is an enlarged schematic diagram of the structure at circle H in FIG17;

[0091] FIG38 is a perspective view of the second positioning assembly shown in FIG16 , wherein the shielding member is omitted;

[0092] FIG39 is a perspective view of a shielding member in the first embodiment of the third aspect of the present application;

[0093] FIG40 is a perspective view of a positioning assembly in the second embodiment of the third aspect of the present application;

[0094] FIG41 is a perspective view of a positioning assembly in a third embodiment of the third aspect of the present application;

[0095] FIG42 is a perspective view of the second positioning assembly in the positioning assembly shown in FIG41;

[0096] FIG43 is a bottom view of the top cover of the second positioning assembly shown in FIG42;

[0097] FIG44 is an enlarged schematic diagram of the structure at circle J in FIG43 ;

[0098] FIG45 shows a cross-sectional view along line U7-U7 in FIG43;

[0099] FIG46 is a perspective view of the second positioning assembly shown in FIG42 , with the bottom cover omitted;

[0100] FIG47 is an enlarged schematic diagram of the structure at circle K in FIG46 ;

[0101] FIG48 is a cross-sectional view of the second positioning assembly in the third embodiment of the third aspect, wherein the perspective of the cross-sectional view is the same as that of FIG21 , and the first positioning assembly is directed toward the rear of the vehicle in the first direction;

[0102] Figure 49 is an enlarged schematic diagram of the structure at circle L in Figure 48. DETAILED DESCRIPTION

[0103] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0104] Referring to Figure 1, the first aspect of the present application provides a carrier A1000, which may include a carrier body A200 and a positioning assembly A100 provided according to an embodiment of the present invention (see Figure 2), wherein the positioning assembly A100 is used to install the carrier body A200 on a car seat (not shown in the figure) to improve the safety of children or infants when riding in a car. It should be noted that the carrier body A200 can be, for example, a seat, a carrier or a sleeping box. The positioning assembly A100 will be described below while describing the carrier A1000.

[0105] Referring to Figures 2 to 4, in one embodiment, the positioning assembly A100 includes a first positioning assembly A110 and a second positioning assembly A120, wherein the first positioning assembly A110 is rotatably disposed on the second positioning assembly A120. One of the first positioning assembly A110 and the second positioning assembly A120 is provided with a first track A131 and a second track A132, and the other is provided with a first sliding member A141 and a second sliding member A142. For example, as shown in Figures 3 and 4, the first positioning assembly A110 is provided with a first sliding member A141 and a second sliding member A142, and the second positioning assembly A120 is provided with a first track A131 and a second track A132, wherein the first sliding member A141 and the second sliding member A142 are spaced apart along the front-to-back direction (i.e., the Q1 and Q2 directions) of the first positioning assembly, the first track A131 extends along the first direction F1, and the second track A132 extends along the second direction F2, and the first direction F1 and the second direction F2 are staggered. In one embodiment, the first sliding member A141 slides along one of the first track A131 or the second track A132, and the second sliding member A142 slides along the other of the first track A131 or the second track A132. In this way, the first positioning assembly A110 can be simultaneously displaced relative to the rotation of the second positioning assembly A120 (see Figures 8 and 10).

[0106] In one embodiment, as shown in Figures 1 to 4, the first positioning assembly A110 is used to connect to the carrier body A200, and the second positioning assembly A120 is used to connect to the car seat. Specifically, the first positioning assembly A110 is provided with a first connecting mechanism A150 (e.g., a snap hook), and the first connecting mechanism A150 is mainly used to connect to the snap member (not shown in the figure) at the bottom of the carrier body A200. The second positioning assembly A120 is provided with a seat connecting mechanism A160 (e.g., an ISOFIX connector) and a support leg A170. The seat connecting mechanism A160 is mainly used to fix the second positioning assembly A120 to the car seat, and the support leg A170 is mainly used to abut against the floor inside the vehicle. In this way, when the positioning assembly A100 is installed on the car seat and the carrier body A200 is installed on the positioning assembly A100, the orientation of the carrier body A200 can be changed by rotating the first positioning assembly A110, so that the carrier body A200 has different usage modes. In some embodiments, the orientation of the carrier body A200 depends on the extension direction of the first rail A131 and the second rail A132. For example, when the first rail A131 extends along the first direction F1 and the second rail A132 extends along the second direction F2, the carrier body A200 can be used in the first direction F1 or the second direction F2 after the first positioning assembly A110 rotates relative to the second positioning assembly A120.

[0107] It should be noted that in this embodiment, the first positioning assembly A110 has a front end and a rear end. To clearly understand the ends of the first positioning assembly A110, taking the carrier body A200 mounted on the first positioning assembly A110 as an example, the front-to-back direction of the carrier body A200 is parallel to the front-to-back direction of the first positioning assembly A110. Specifically, when an infant or child is riding in the carrier body A200, the front end of the first positioning assembly A110 is closer to the infant or child's feet than the rear end. Conversely, the rear end of the first positioning assembly A110 is closer to the infant or child's head than the front end. When the first positioning assembly A110 is facing a certain direction, it means that the carrier body A200 is also facing the same direction; at the same time, the child riding in the carrier body A200 is also facing the same direction. To intuitively understand the front-to-back directions of the carrier body A200 and the first positioning assembly A110, the front and rear directions are schematically indicated by arrows Q1 and Q2 in the respective figures, with the Q1 direction being parallel to and opposite to the Q2 direction.

[0108] It should also be noted that, in the present embodiment, when the positioning assembly A100 (the second positioning assembly A120) is installed on the car seat, the first direction F1 refers to the front and rear direction of the car, and the second direction F2 refers to the left and right direction of the car. Specifically, the first direction F1 is perpendicular to the second direction F2. More specifically, in the present embodiment, the first direction F1 includes two directions (i.e., the front direction and the rear direction), which are parallel and opposite. Similarly, the second direction F2 also includes two directions (i.e., the left direction and the right direction), which are parallel and opposite. In order to facilitate the distinction between the front direction, rear direction, left direction and right direction of the car, the front direction and the rear direction are schematically indicated by arrows F and B in each drawing, and the left direction and the right direction are schematically indicated by arrows L and R, respectively. Therefore, the first positioning component A110 mentioned later facing the front of the car relative to the second positioning component A120 along the first direction F1 means that the front end of the first positioning component A110 faces the F direction; the first positioning component A110 facing the rear of the car relative to the second positioning component A120 along the first direction F1 means that the front end of the first positioning component A110 faces the B direction; the first positioning component A110 facing the right side of the car relative to the second positioning component A120 along the second direction F2 means that the front end of the first positioning component A110 faces the R direction; the first positioning component A110 facing the left side of the car relative to the second positioning component A120 along the second direction F2 means that the front end of the first positioning component A110 faces the L direction.

[0109] It should be noted that these orientation terms involved in this application only indicate relative positional relationships and are used to make the description of the embodiments of this application clearer, and are not used to improperly limit the scope of protection of this application.

[0110] Referring to FIG. 4 , in this embodiment, the intersection of the first track A131 and the second track A132 is defined as the intersection center A133. The first track A131 and the second track A132 are both divided into two segments by the intersection center A133. For example, the first track A131 is divided into a first segment A1311 and a second segment A1312 by the intersection center A133, and the second track A132 is divided into a third segment A1321 and a fourth segment A1322 by the intersection center A133. Among them, the first rail segment A1311 extends from the intersection center A133 along the first direction F1 toward the front of the vehicle, that is, the first rail segment A1311 extends from the intersection center A133 along the F direction, and the second rail segment A1312 extends from the intersection center A133 along the first direction F1 toward the rear of the vehicle, that is, the second rail segment A1312 extends from the intersection center A133 along the B direction; the third rail segment A1321 extends from the intersection center A133 along the second direction F2 toward the left side of the vehicle, that is, the third rail segment A1321 extends from the intersection center A133 along the L direction, and the fourth rail segment A1322 extends from the intersection center A133 along the second direction F2 toward the right side of the vehicle, that is, the fourth rail segment A1322 extends from the intersection center A133 along the R direction.

[0111] In one embodiment, as shown in FIG3 , the first positioning component A110 is roughly in the shape of a disk, the first sliding member A141 is arranged at the center of the first positioning component A110, and the second sliding member A142 is arranged offset from the center. It should be noted that when the first positioning component A110 is roughly in the shape of a disk, the center of the first positioning component A110 is its geometric center. Of course, in other embodiments, the first positioning component A110 can be other symmetrical shapes (such as an ellipse, a rectangle, etc.), and the first sliding member A141 can be arranged at the geometric center of the first positioning component A110 or at a position offset from the geometric center; or, the first positioning component A110 can also be an asymmetrical shape.

[0112] It should be noted that, in this embodiment, as shown in FIG2 , the length of the second positioning component A120 along the first direction F1 and the second direction F2 is greater than the diameter of the first positioning component A110. When the first positioning component A110 is rotated relative to the second positioning component A120 to face the first direction F1 (for example, the front or rear of a car), the center of the circle of the first positioning component A110 (i.e., the geometric center of the first positioning component A110) is coaxially arranged with the geometric center of the second positioning component A120, and the orthographic projection of the first positioning component A110 on the second positioning component A120 is located within the range of the second positioning component A120. In other words, when the first positioning component A110 is facing the first direction F1, the lower surface of the first positioning component A110 (i.e., the surface facing the second positioning component A120) can be supported by the upper surface of the second positioning component A120, and there is no suspended part relative to the second positioning component A120.

[0113] Referring to Figures 2 to 4 , in this embodiment, the first slider A141 slides along the second track A132, and the second slider A142 slides along the first track A131. When the first positioning assembly A110 is oriented toward the front of the vehicle (i.e., direction F) relative to the second positioning assembly A120 in the first direction F1 (see Figure 2 ), the first slider A141 is located at the intersection center A133, and the second slider A142 is located within the second track segment A1312. When the first positioning assembly A110 is oriented toward the rear of the vehicle (i.e., direction B) relative to the second positioning assembly A120 in the first direction F1, the first slider A141 is located at the intersection center A133, and the second slider A142 is located within the first track segment A1311. When the first positioning assembly A110 rotates relative to the second positioning assembly A120 to face the second direction F2 (see Figures 8 and 10 ), the first positioning assembly A110 as a whole displaces relative to the second positioning assembly A120 in the second direction F2. Specifically, the first positioning component A110 is pulled outward along the second direction F2 relative to the second positioning component A120. It should be noted that "the first positioning component A110 is pulled outward along the second direction F2 relative to the second positioning component A120" means that the first positioning component A110 is displaced relative to one side of the second positioning component A120 along the second direction F2 to be closer to the car door on this side, rather than being separated from the second positioning component A120. Specifically, it means that the first positioning component A110 will move toward the side corresponding to the car seat on which the second positioning component is installed, closer to the car door on that side. For example, if the second positioning component A120 is installed on the left seat, when the first positioning component A110 is rotated to face the left direction, the first positioning component A110 will be closer to the left car door. If the second positioning component A120 is installed on the right seat, when the first positioning component A110 is rotated to face the right direction, the first positioning component A110 will be closer to the right car door. If the second positioning component A120 is installed in the middle seat, when the first positioning component A110 is rotated to face either side of the door, the first positioning component A110 will be closer to the door on the corresponding side. The above situations are all regarded as the first positioning component A110 being displaced outward along the second direction F2 relative to one side of the second positioning component A120. At this time, the geometric center of the first positioning component A110 is displaced along the second direction F2 relative to the geometric center of the second positioning component A120. In addition, it should be noted that "the first positioning component A110 is pulled outward relative to the second positioning component A120 along the second direction F2" is not limited to the action of "pulling" to make the first positioning component A110 displace relative to the second positioning component A120 along the second direction F2. As long as the action of the first positioning component A110 being displaced in this direction relative to the second positioning component A120 can be achieved, it is consistent with the meaning of this expression.Specifically, when the first positioning assembly A110 is oriented toward the right side of the vehicle (i.e., the R direction) relative to the second positioning assembly A120 along the second direction F2, the first positioning assembly A110 is pulled rightward relative to the second positioning assembly A120 (see FIG8 ), closer to the right door. At this time, the second sliding member A142 is located at the intersection center A133, and the first sliding member A141 is located within the fourth track segment A1322. When the first positioning assembly A110 is oriented toward the left side of the vehicle (i.e., the L direction) relative to the second positioning assembly A120 along the second direction F2, the first positioning assembly A110 is pulled leftward relative to the second positioning assembly A120 (see FIG10 ), closer to the left door. At this time, the second sliding member A142 is located at the intersection center A133, and the first sliding member A141 is located within the third track segment A1321. This makes it easier for users to carry children out of or into the carrier body A200 (see FIG1 ).

[0114] Referring to Figure 2, in one embodiment, the positioning assembly A100 further includes a protective mechanism A180. The protective mechanism A180 is disposed on the second positioning assembly A120 and can slide relative to the second positioning assembly A120, and the first positioning assembly A110 can rotate relative to the protective mechanism A180. Specifically, the protective mechanism A180 is sleeved outside the first positioning assembly A110, but the first positioning assembly A110 can rotate relative to the protective mechanism A180. In addition, when the first positioning assembly A110 switches between the first direction F1 and the second direction F2 relative to the second positioning assembly A120, the first positioning assembly A110 is driven to cooperate with the protective mechanism A180 so that the protective mechanism A180 can move left and right along the second direction F2 on the second positioning assembly A120.

[0115] Referring to Figures 2 to 5, in one embodiment, two protrusions A121 are formed on the second positioning assembly A120 at intervals along the first direction F1, and an installation space A122 is formed between the two protrusions A121. Specifically, the first track A131 and the second track A132 are both located in the installation space A122, and the first positioning assembly A110 is rotatably disposed in the installation space A122, which can be regarded as the first positioning assembly A110 being rotatably disposed on the second positioning assembly A120 and located between the two protrusions A121. Each protrusion A121 is formed with a groove structure A1212 on one side facing the first positioning assembly A110. Specifically, the two protrusions A121 are both disposed on the upper surface of the second positioning assembly A120, and the two protrusions A121 are both formed with a limiting protrusion A1211, and the two limiting protrusions A1211 both protrude toward the installation space A122. In this way, a groove structure A1212 with an opening is formed between each limiting protrusion A1211 and the upper surface of the second positioning component A120.

[0116] In one embodiment, in conjunction with Figures 2 and 6 to 11, the protective mechanism A180 includes a protective shell A181. The protective shell A181 is an annular structure and is arranged around the outer periphery of the first positioning component A110. The outer edge of the protective shell A181 can be inserted into the above-mentioned two groove structures A1212 and can slide within the two groove structures A1212. When the first positioning component A110 is pulled outward along the second direction F2 relative to the second positioning component A120, it can be regarded as that when the first positioning component A110 is rotated relative to the second positioning component A120 to face the second direction F2, part of the edge of the protective shell A181 is still inserted into the two groove structures A1212 (see Figures 8, 10 and 11). In this way, the protective shell A181 can effectively block the gap between the first positioning component A110 and the protrusion A121, ensuring that the user cannot put his hand into the gap during operation, thereby effectively preventing the risk of pinching the hand. In addition, when the first positioning component A110 is rotated to face the second direction F2, the protective shell A181 can still be clamped in the groove structure A1212. In this way, the number of support points of the first positioning component 110 is increased, so that when the first positioning component A110 is rotated to the side (for example, the left or right side), it can not only be supported by the first sliding member A141 and the second sliding member A142, but also receive additional support through the protective shell A181 being clamped in the groove structure A1212, thereby improving the stability of the first positioning component A110 when it is rotated to the side.

[0117] The working principle of the protection mechanism A180 is briefly described below with reference to FIG. 2 to FIG. 5 and FIG. 8 to FIG. 10 .

[0118] When the first positioning component A110 rotates relative to the second positioning component A120 from facing the front of the car to the right side of the car (i.e., switching from Figure 2 to Figure 8), as shown in Figures 3 and 4, the first sliding member A141 moves from the intersection center A133 to the end of the fourth track segment A1322 away from the intersection center A133, and the second sliding member A142 moves from the end of the second track segment A1312 away from the intersection center A133 to the intersection center A133, the first positioning component A110 will rotate to the right relative to the second positioning component A120 and slide to the right, so that the first positioning component A110 is closer to the right door, and the front end edge of the first positioning component A110 gradually protrudes outward relative to the right edge of the second positioning component A120 (see Figure 8). Of course, in other embodiments, if the size of the second positioning component A120 is large enough, even if the first positioning component A110 is rotated relative to the second positioning component A120 to face the right side of the car (i.e., the R direction), so that the first positioning component A110 is closer to the right door, the front edge of the first positioning component A110 will not protrude outward relative to the right side edge of the second positioning component A120. The specific situation depends on the actual design and is not specifically limited here. Since the protective shell A181 is mounted on the outer periphery of the first positioning component A110, and the first positioning component A110 can rotate relative to the protective shell A181, the first positioning component A110 will push the protective shell A181 to move along the second direction F2 toward the right side of the car while rotating and sliding, so that the outer edge A181a of the protective shell A181 extending along the second direction F2 can slide to the right along the second direction F2 within the groove structure A1212 relative to the protrusion A121.

[0119] When the first positioning assembly A110 rotates relative to the second positioning assembly A120 from the right side of the vehicle toward the rear of the vehicle (i.e., switching from FIG8 to FIG9 ), the second slider A142 moves from the intersection center A133 toward the end of the first track segment A1311 away from the intersection center A133, and the first slider A141 moves from the end of the fourth track segment A1322 away from the intersection center A133 toward the intersection center A133. The first positioning assembly A110 rotates backward relative to the second positioning assembly A120 while sliding toward the intersection center A133, gradually returning the first positioning assembly A110 to the second positioning assembly A120 (see FIG9 ). During this process, the first positioning assembly A110 rotates relative to the protective shell A181 and pushes the protective shell A181 to move along the second direction F2 toward the left side of the vehicle, allowing the outer edge of the protective shell A181 extending along the second direction F2 to slide leftward along the second direction F2 within the groove structure A1212 relative to the protrusion A121.

[0120] When the first positioning component A110 rotates from the direction toward the rear of the car to the left side of the car relative to the second positioning component A120 (i.e., switches from Figure 9 to Figure 10), the first sliding member A141 moves from the intersection center A133 to the end of the third rail segment A1321 away from the intersection center A133, and the second sliding member A142 moves from the end of the first rail segment A1311 away from the intersection center A133 to the intersection center A133. The first positioning component A110 will rotate relative to the second positioning component A120 to the left side and slide toward the left side of the second positioning component A120, so that the first positioning component A110 is closer to the left door, and the front end edge of the first positioning component A110 gradually protrudes outward relative to the left edge of the second positioning component A120 (see Figures 10 and 11). Of course, in other embodiments, if the size of the second positioning assembly A120 is large enough, even if the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to face the left side of the car (i.e., the L direction), so that the first positioning assembly A110 is closer to the left door, the front edge of the first positioning assembly A110 will not protrude outward relative to the left edge of the second positioning assembly A120. The specific situation depends on the actual design and is not specifically limited here. During this process, the first positioning assembly A110 rotates relative to the protective shell A181 and pushes the protective shell A181 to continue to move toward the left side of the car along the second direction F2, so that the outer edge of the protective shell A181 extending along the second direction F2 can continue to slide toward the left side within the groove structure A1212 along the second direction F2 relative to the protrusion A121.

[0121] When the first positioning assembly A110 rotates relative to the second positioning assembly A120 from the left side of the vehicle toward the front of the vehicle (i.e., switching from FIG. 10 to FIG. 2 ), the second slider A142 moves from the intersection center A133 toward the end of the second track segment A1312 away from the intersection center A133, and the first slider A141 moves from the end of the third track segment A1321 away from the intersection center A133 toward the intersection center A133. The first positioning assembly A110 rotates relative to the second positioning assembly A120 while sliding toward the intersection center A133, gradually returning the first positioning assembly A110 to the second positioning assembly A120 (see FIG. 2 ). During this process, the first positioning assembly A110 rotates relative to the protective shell A181 and pushes the protective shell A181 to move along the second direction F2 toward the right side of the vehicle, allowing the outer edge of the protective shell A181 extending along the second direction F2 to slide rightward along the second direction F2 within the groove structure A1212 relative to the protrusion A121.

[0122] 7, 12, and 13, in one embodiment, the protective shell A181 has a retaining recess A1811, into which the outer edge of the first positioning assembly A110 is inserted. Thus, when the first positioning assembly A110 rotates relative to the protective shell A181, the retaining recess A1811 can prevent the first positioning assembly A110 from separating from the protective shell A181, thereby improving the stability of the protective mechanism A180 disposed on the first positioning assembly A110. Furthermore, when the carrier body A200 is mounted on the first positioning assembly A110, the center of gravity of the carrier body A200 is generally biased toward the rear side of the carrier body A200, i.e., the side of the carrier body A200 close to its backrest, causing the front side of the carrier body A200 to tend to tilt upward. Since the carrier body A200 is connected to the first positioning component A110, the outer edge of the first positioning component A110 is limited to the holding recess A1811, and the outer edge of the protective shell A181 is inserted into the above-mentioned two groove structures A1212. In this way, the reliability of the first positioning component A110 in rotating and moving on the second positioning component A120 is improved.

[0123] Referring to Figures 6, 7 and 12, in one embodiment, the protective shell A181 includes a cover body A1812 and a first limiting piece A1813. The cover body A1812 is arranged around the outer periphery of the first positioning assembly A110, and the outer edge of the cover body A1812 extending along the second direction F2 is slidably arranged in two groove structures A1212. The first limiting piece A1813 is arranged on one side of the cover body A1812 (i.e., the side away from the second positioning assembly A120) and is arranged at an angle to the inner ring wall A18121 of the cover body A1812. The first limiting piece A1813 and the inner ring wall A18121 of the cover body A1812 form a retaining recess A1811, and the bottom wall of the retaining recess A1811 is the inner ring wall A18121 of the cover body A1812. When the first positioning assembly A110 pushes the protective shell A181 to move along the second direction F2, it can be considered that the first positioning assembly A110 pushes the inner annular wall A18121 of the cover body A1812 to move the protective shell A181 to the left or right along the second direction F2.

[0124] In one embodiment, the shape of the inner annular wall A18121 of the cover A1812 matches the outer contour of the first positioning assembly A110. For example, when the first positioning assembly A110 is disc-shaped, the inner annular wall A18121 can be circular, with a diameter greater than or equal to the diameter of the first positioning assembly A110. Specifically, as shown in Figures 2, 6, and 7, the outer contour of the cover A1812 matches the shape of the second positioning assembly A120. When the first positioning assembly A110 is oriented toward the front of the vehicle relative to the second positioning assembly A120, the projection of the cover A1812 on the second positioning assembly A120 is located within the second positioning assembly A120. For example, the cover A1812 has a generally square structure and is provided with a circular center hole. The hole wall of the center hole serves as the inner annular wall A18121 of the cover A1812. More specifically, the center of the center hole is coaxially arranged with the center point of the cover A1812. The side length W1 of the cover A1812 along the first direction F1 is greater than the distance L1 between the two protrusions A121 (see Figures 5 and 6). At the same time, the side length W1 of the cover A1812 along the first direction F1 is less than or equal to the distance L3 between the bottom walls of the two groove structures A1212. The side length W2 of the cover A1812 along the second direction F2 is less than or equal to the length L2 of the second positioning assembly A120 along the second direction F2 (see Figure 2). In this way, when the first positioning assembly A110 drives the cover A1812 to move along the second direction F2, it can ensure that a portion of the edge of the cover A1812 can still be inserted into the groove structure A1212 of the protrusion A121. Specifically, in this embodiment, as shown in Figures 6 and 7, the diameter of the center hole on the cover body A1812 is slightly smaller than the side length of the cover body A1812, so that the inner annular wall A18121 and the outer annular wall A18122 of the cover body A1812 are tangent to each other along the first direction F1 and form two first tangent portions A1812a; the inner annular wall A18121 and the outer annular wall A18122 of the cover body A1812 are tangent to each other along the second direction F2 and form two second tangent portions A1812b, and four shielding portions A1812c are formed at the four corners of the cover body A1812. When the first positioning component A110 rotates to face the first direction F1, the two first tangential portions A1812a are respectively clamped in the two groove structures A1212; when the first positioning component A110 rotates to face the second direction F2, the shielding portion A1812c is clamped in the groove structure A1212 and can block the gap between the first positioning component A110 and the protrusion A121.

[0125] It should be noted that when the cover body A1812 is a square structure, W1 is equal to W2; of course, in other embodiments, when the cover body A1812 is a rectangular structure, W1 may be greater than or less than W2.

[0126] Referring to Figures 6 and 7 , in one embodiment, two first limiting pieces A1813 are provided, each of which has an arc-shaped structure. The two first limiting pieces A1813 are arranged opposite each other in the circumferential direction of the inner annular wall A18121 of the cover body A1812. Of course, in other embodiments, there can be only one first limiting piece A1813, which has an annular structure; or alternatively, there can be at least three first limiting pieces A1813, which are spaced apart in the circumferential direction of the inner annular wall A18121 of the cover body A1812. Specifically, the number and shape of the first limiting pieces A1813 are not specifically limited herein.

[0127] In one embodiment, as shown in Figures 12 and 13, the first limiting piece A1813 is integrally formed with the cover A1812. In other words, the cover A1812 and the first limiting piece A1813 are an integrally formed structure. Of course, in other embodiments, the first limiting piece A1813 can be connected to the cover A1812 by bonding, riveting, or other methods.

[0128] Referring to Figures 7 and 12, in one embodiment, the protective housing A181 further includes a second stopper A1814. The second stopper A1814 is disposed on the other side of the cover A1812 (i.e., the side facing the second positioning assembly A120) and is disposed at an angle to the inner annular wall A18121 of the cover A1812. The first stopper A1813, the inner annular wall A18121 of the cover A1812, and the second stopper A1814 sequentially enclose a retaining recess A1811.

[0129] In one embodiment, the second limiting piece A1814 can be integrally formed on the cover body A1812. Alternatively, in other embodiments, the second limiting piece A1814 can be connected to the cover body A1812 by bonding, riveting, etc. Specifically, as shown in Figure 13, the protective mechanism A180 also includes a connecting piece (not shown in the figure). The cover body A1812 is provided with a first connecting part A1812e, and the second limiting piece A1814 is provided with a second connecting part A18141, and the connecting piece connects the first connecting part A1812e and the second connecting part A18141. Among them, the first connecting part A1812e and the second connecting part A18141 are both provided with connecting holes, and the connecting piece can be a screw or a bolt, etc., so that the connecting piece can pass through the two connecting holes and be threadedly connected to limit the second limiting piece A1814 from detaching from the cover body A1812. In one embodiment, a plurality of second limiting pieces A1814 are provided, and the plurality of second limiting pieces A1814 are spaced apart along the circumferential direction of the inner annular wall A18121. Specifically, in this embodiment, four second limiting pieces A1814 are provided, and the four second limiting pieces A1814 are respectively located at the four corners of the square-shaped cover A1812 (see FIG. 7 ). Of course, in other embodiments, the second limiting piece A1814 may be annular in structure, with the center of the second limiting piece A1814 coaxially arranged with the center of the inner annular wall A18121 of the cover A1812.

[0130] Referring to Figures 5 to 7 , in one embodiment, a locking tongue A190 is movably disposed within each groove structure A1212. The two first tangential portions A1812a of the protective housing A181 are each provided with a first locking hole A1815. The front and rear ends of the first positioning assembly A110 are each provided with a second locking hole (not shown). When the first positioning assembly A110 is rotated to face the first direction F1, at least one locking tongue A190 can pass through the corresponding first locking hole A1815 and second locking hole, thereby locking the first positioning assembly A110 in the first direction F1.

[0131] In the above-mentioned positioning component A100, the first positioning component A110 is rotatably disposed on the second positioning component A120. When the first positioning component A110 is rotated relative to the second positioning component A120 to face the second direction F2, the first positioning component A110 can be pulled outward along the second direction F2 relative to the second positioning component A120. Therefore, when the carrier body A200 is installed on the first positioning component A110 and the carrier body A200 faces the second direction F2 with the first positioning component A110, the carrier body A200 will be pulled outward along the second direction F2, which makes it convenient for users to carry infants in or out. In addition, in the above-mentioned positioning assembly A100, the first positioning assembly A110 is located between the two protrusions A121 provided on the second positioning assembly A120. When the first positioning assembly A110 is pulled outward relative to the second positioning assembly A120 along the second direction F2, part of the edge of the protective shell A181 is still inserted into the two groove structures A1212. In this way, the protective shell A181 can effectively block the gap between the first positioning assembly A110 and the protrusion A121, ensuring that the user cannot insert the hand into the gap during operation, thereby effectively preventing the risk of pinching the hand. At the same time, the number of support points of the first positioning assembly A110 is also increased, so that when the first positioning assembly A110 is rotated to the side (for example, the left or right side), it can not only be supported by the first sliding member A141 and the second sliding member A142, but also receive additional support through the protective shell A181 being clamped in the groove structure A1212, thereby improving the stability of the first positioning assembly A110 when it is rotated to the side.

[0132] In a second aspect, the present application provides a vehicle, including a vehicle body B300 (see FIG. 26 ) and a positioning assembly B100 according to some embodiments of the present invention. The vehicle body B300 may be, for example, a seat, a carrycot, or a sleeping box. The vehicle body B300 and the positioning assembly B100 will be described together with the vehicle below.

[0133] Figures 14 and 15 show stereoscopic views of a positioning assembly B100 provided according to an embodiment of the second aspect of the present application. The positioning assembly B100 is used to install a carrier body B300 (see Figure 26) on a car seat (not shown) to ensure safe travel for children or infants. Specifically, the positioning assembly B100 may include a first positioning assembly B110 and a second positioning assembly B120. The first positioning assembly B110 and the second positioning assembly B120 will be described in detail below.

[0134] In one embodiment, a track is provided on the second positioning assembly B120, and a sliding member is provided on the first positioning assembly B110, and the sliding member slides along the track to allow the first positioning assembly B110 to rotate and slide relative to the second positioning assembly B120. Specifically, as shown in Figures 15 and 16, the track includes a first track B131 and a second track B132, the first track B131 extends along a first direction F1, and the second track B132 extends along a second direction F2, and the second direction F2 is staggered with the first direction F1. The sliding member includes a first sliding member B141 and a second sliding member B142 (see Figures 23 and 24, the specific structure can be seen later) spaced apart along the front-to-back direction (i.e., Q1 and Q2 directions) of the first positioning assembly B110. The first sliding member B141 slides along one of the first track B131 or the second track B132, and the second sliding member B142 slides along the other of the first track B131 or the second track B132. For example, the first slider B141 slides along the first track B131, while the second slider B142 slides along the second track B132. Alternatively, the first slider B141 slides along the second track B132, while the second slider B142 slides along the first track B131. In this way, the first positioning assembly B110 can be simultaneously displaced relative to the rotation of the second positioning assembly B120.

[0135] Referring to Figures 14 and 15, in one embodiment, the first positioning assembly B110 is used to connect to the carrier body B300, and the second positioning assembly B120 is used to connect to the car seat. Specifically, the first positioning assembly B110 is provided with a first connecting mechanism B170 (see below for details), which is used to connect to the engaging member B310 (see Figure 26) at the bottom of the carrier body B300. The second positioning assembly B120 is provided with a seat connecting mechanism B180 (such as an ISOFIX connector) and a support leg B190. The seat connecting mechanism B180 is mainly used to fix the second positioning assembly B120 to the car seat, and the support leg B190 is mainly used to abut against the floor inside the vehicle. In this way, when the positioning assembly B100 is installed on the car seat and the carrier body B300 is installed on the positioning assembly B100, the orientation of the carrier body B300 can be changed by rotating the first positioning assembly B110, so that the carrier body B300 has different usage modes. It should be noted that the orientation of the carrier body B300 depends on the extension direction of the first track B131 and the second track B132. When the first track B131 extends along the first direction F1 and the second track B132 extends along the second direction F2, the carrier body B300 has a usage mode facing the first direction F1 and the second direction F2. Specifically, the first direction F1 and the second direction F2 are perpendicular, which means that the first track B131 and the second track B132 are perpendicular. The intersection of the first track B131 and the second track B132 is called the intersection center B133 (see Figure 16).

[0136] In one embodiment, the first positioning component B110 is generally in the shape of a disk, the first sliding member B141 is arranged at the center of the first positioning component B110, and the second sliding member B142 is arranged offset from the center. It should be noted that when the first positioning component B110 is generally in the shape of a disk, the center of the first positioning component B110 is its geometric center. Of course, in other embodiments, the first positioning component B110 can be other symmetrical shapes (such as an ellipse, a rectangle, etc.), and the first sliding member B141 can be arranged at the geometric center of the first positioning component B110 or at a position offset from the geometric center; or, the first positioning component B110 can also be an asymmetric shape. In this embodiment, the first sliding member B141 slides along the second track B132, and the second sliding member B142 slides along the first track B131. When the first positioning assembly B110 rotates relative to the second positioning assembly B120 to face the first direction F1, the carrier body B300 is in a use mode facing the first direction F1. At this time, the first sliding member B141 is located at the intersection center B133, and the second sliding member B142 is located at the first track B131. At this time, it can be understood that the center of the circle of the first positioning assembly B110 (i.e., the geometric center of the first positioning assembly B110) is coaxially arranged with the geometric center of the second positioning assembly B120. When the first positioning assembly B110 rotates relative to the second positioning assembly B120 to face the second direction F2, the carrier body B300 is in a use mode facing the second direction F2. At this time, the second sliding member B142 is located at the intersection center B133, the first sliding member B141 is located at the second track B132, and the first positioning assembly B110 as a whole is displaced relative to the second positioning assembly B120 along the second direction F2. Specifically, the first positioning assembly B110 is pulled outward relative to the second positioning assembly B120 along the second direction F2. It should be noted that "the first positioning assembly B110 is pulled outward relative to the second positioning assembly B120 along the second direction F2" means that the first positioning assembly B110 is displaced relative to the second positioning assembly B120 along the second direction F2 to a side closer to the vehicle door on that side, rather than being disengaged from the second positioning assembly B120. Specifically, it means that the first positioning assembly B110 will move toward the side of the car seat corresponding to the car seat on which the second positioning assembly is installed, closer to the vehicle door on that side. For example, if the second positioning assembly B120 is installed on the left seat, when the first positioning assembly B110 is rotated to face the left, the first positioning assembly B110 will be closer to the left vehicle door. If the second positioning assembly B120 is installed on the right seat, when the first positioning assembly B110 is rotated to face the right, the first positioning assembly B110 will be closer to the right vehicle door. If the second positioning assembly B120 is installed on the middle seat, when the first positioning assembly B110 is rotated to face either side of the vehicle door, the first positioning assembly B110 will be closer to the corresponding vehicle door.The above situations are all regarded as the first positioning component B110 being displaced outward along the second direction F2 relative to one side of the second positioning component B120. At this time, the geometric center of the first positioning component B110 is displaced along the second direction F2 relative to the geometric center of the second positioning component B120. In addition, it should be noted that "the first positioning component B110 is pulled outward along the second direction F2 relative to the second positioning component B120" is not limited to the action of "pulling" to make the first positioning component B110 displace relative to the second positioning component B120 along the second direction F2. As long as the action of the first positioning component B110 displacing in this direction relative to the second positioning component B120 can be achieved, it is in line with the meaning of this expression. In this way, it is convenient for users to carry children out of the carrier body B300 or carry children into the carrier body B300.

[0137] It should be noted that in this embodiment, the first positioning assembly B110 has a front end and a rear end. To clearly understand the ends of the first positioning assembly B110, taking the carrier body B300 mounted on the first positioning assembly B110 as an example, the front-to-back direction of the carrier body B300 is parallel to the front-to-back direction of the first positioning assembly B110. Specifically, when an infant or child is riding in the carrier body B300, the front end of the first positioning assembly B110 is closer to the infant or child's feet than the rear end. Conversely, the rear end of the first positioning assembly B110 is closer to the infant or child's head than the front end. When the first positioning assembly B110 is facing a certain direction, it means that the carrier body B300 is also facing the same direction; at the same time, the child riding in the carrier body B300 is also facing the same direction. To intuitively understand the front-to-back directions of the carrier body B300 and the first positioning assembly B110, the front and rear directions are schematically indicated by arrows Q1 and Q2 in the respective figures, with the Q1 direction being parallel to and opposite to the Q2 direction.

[0138] It should also be noted that, in this embodiment, when the positioning assembly B100 (second positioning assembly B120) is installed on the car seat, the first direction F1 refers to the front and rear direction of the car, and the second direction F2 refers to the left and right direction of the car. More specifically, in this embodiment, the first direction F1 includes two directions (i.e., the front direction and the rear direction), which are parallel and opposite. Similarly, the second direction F2 also includes two directions (i.e., the left direction and the right direction), which are parallel and opposite. In order to facilitate the distinction between the front direction, rear direction, left direction, and right direction of the car, the front direction and rear direction are schematically indicated by arrows F and B in each drawing, and the left direction and right direction are schematically indicated by arrows L and R, respectively. Therefore, the first positioning component B110 mentioned above rotates relative to the second positioning component B120 to face the first direction F1, which means that the front end of the first positioning component B110 faces the first direction F1 (which can be referred to as the F direction or the B direction); the first positioning component B110 rotates relative to the second positioning component B120 to face the second direction F2, which means that the front end of the first positioning component B110 faces the second direction F2 (which can be referred to as the R direction or the L direction).

[0139] It should be noted that these orientation terms involved in this application only indicate relative positional relationships and are used to make the description of the embodiments of this application clearer, and are not used to improperly limit the scope of protection of this application.

[0140] In one embodiment, the first track B131 and the second track B132 are each divided by the intersection center B133 to form two track segments. For example, the first track B131 is divided by the intersection center B133 to form a first track segment B1311 and a second track segment B1312, and the second track B132 is divided by the intersection center B133 to form a third track segment B1321 and a fourth track segment B1322 (see FIG. 16 ). The first rail segment B1311 extends from the intersection center B133 along the first direction F1 toward the front of the vehicle, that is, the first rail segment B1311 extends from the intersection center B133 along the F direction. The second rail segment B1312 extends from the intersection center B133 along the first direction F1 toward the rear of the vehicle, that is, the second rail segment B1312 extends from the intersection center B133 along the B direction. The third rail segment B1321 extends from the intersection center B133 along the second direction F2 toward the left side of the vehicle, that is, the third rail segment B1321 extends from the intersection center B133 along the L direction. The fourth rail segment B1322 extends from the intersection center B133 along the second direction F2 toward the right side of the vehicle, that is, the fourth rail segment B1322 extends from the intersection center B133 along the R direction. In this way, after the carrier body B300 rotates with the first positioning assembly B110 relative to the second positioning assembly B120, it has four usage modes: forward, backward, left, and right.

[0141] Referring to Figures 16 and 17, in one embodiment, the second positioning assembly B120 includes a top cover B121 and a bottom cover B122, which are connected vertically and enclose a second mounting cavity B123. A first track B131 and a second track B132 are both provided on the top cover B121 and communicate with the second mounting cavity B123. In one embodiment, two protrusions are provided on the upper surface of the top cover B121 along a first direction F1, and the two protrusions can be referred to as a first protrusion B124 and a second protrusion B125, respectively. An mounting space B126 is formed between the first protrusion B124 and the second protrusion B125. The first track B131 and the second track B132 are both located within the mounting space B126, and the first positioning assembly B110 is rotatably disposed within the mounting space B126. Specifically, when second positioning assembly B120 is installed on the car seat, first protrusion B124 is closer to the front of the car than second protrusion B125. This means that first protrusion B124 is located in front of second protrusion B125 along the car's travel direction. More specifically, as shown in Figures 16 and 18, both first protrusion B124 and second protrusion B125 have position-limiting projections B127 formed on them, protruding toward installation space B126. Position-limiting projections B127 on first protrusion B124 and second protrusion B125 form a groove-shaped structure B270 with an opening on the upper surface of second positioning assembly B120 (i.e., the upper surface of top cover B121). In this way, when the first positioning component B110 is accommodated in the installation space B126 and faces the first direction F1, part of the circumferential edge of the first positioning component B110 can be inserted into the two groove structures B270 (compare Figures 14 and 15). In this way, the groove structure B270 can limit the shaking of the first positioning component B110 and the carrier body B300 roughly in the vertical direction (which can be regarded as the direction perpendicular to the plane where the first direction F1 and the second direction F2 are located), while allowing the first positioning component B110 to rotate and slide in the horizontal direction (which can be regarded as the plane where the first direction F1 and the second direction F2 are located). When the car collides or brakes suddenly, the carrier body B300 has a tendency to tip forward (that is, equivalent to the direction of the front of the car) under the action of inertia, thereby causing the first positioning component B110 to have a tendency to separate from the second positioning component B120. By inserting part of the circumferential edge of the first positioning component B110 into the two groove structures B270, the groove structure B270 can press the first positioning component B110, thereby preventing the carrier body B300 and the first positioning component B110 from separating from the second positioning component B120, thereby improving the safety of the carrier.

[0142] Referring to Figures 19 to 22, in one embodiment, a relief recess B210 is formed on the first positioning assembly B110. The relief recess B210 can be used to prevent the first positioning assembly B110 from interfering with the first protrusion B124 and the second protrusion B125 during rotation relative to the second positioning assembly B120 within the installation space B126. Specifically, when the first positioning assembly B110 rotates relative to the second positioning assembly B120 to face the first direction F1, the bottom of the relief recess B210 can be inserted into the groove structure B270, and a gap is left between the sidewalls of the relief recess B210 and the limiting protrusion B217 of the first protrusion B124. Specifically, the first positioning assembly B110 can include a support base B111 and a connecting seat B112. The supporting base B111 is generally disc-shaped, and the connecting base B112 is generally strip-shaped. The connecting base B112 is protruded on the supporting base B111 relative to the upper surface of the supporting base B111, and when the first positioning component B110 is rotated to face the first direction F1, the connecting base B112 can be regarded as extending along the first direction F1, and when the first positioning component B110 is rotated to face the second direction F2, the connecting base B112 can be regarded as extending along the second direction F2. The center of the support base B111 is roughly coaxial with the geometric center of the connecting base B112, and the diameter of the support base B111 is greater than the length of the connecting base B112. The protruding part of the support base B111 relative to the connecting base B112 along the length direction of the connecting base B112 can be regarded as the bottom of the above-mentioned avoidance recess B210, and can also be regarded as the partial edge of the above-mentioned first positioning component B110 that can be used for insertion in the groove structure 270, and the side wall of the connecting base B112 facing its extension direction can be regarded as the side wall of the avoidance recess B210. More specifically, when the first positioning assembly B110 is rotated relative to the second positioning assembly B120 to face the first direction F1, the spacing M2 (see FIG. 22 ) between the side wall of the avoidance recess B210 and the limiting protrusion B127 of the first protrusion B124 is not less than 10 mm, for example, M2 is 10 mm, 11 mm, 12 mm, 13 mm, etc. Alternatively, the spacing M2 between the side wall of the avoidance recess B210 and the limiting protrusion B127 of the first protrusion B124 is not greater than 5 mm, for example, M2 is 5 mm, 4 mm, 2 mm, etc. In this way, when the user rotates the first positioning assembly B110 relative to the second positioning assembly B120 to face forward or backward, the space between the first positioning assembly B110 and the limiting protrusion B127 of the first protrusion B124 can prevent the user's hands or other parts from being pinched, thereby improving the safety of the positioning assembly B100.

[0143] Referring to Figures 23 to 26, in one embodiment, the first connecting mechanism B170 is provided on the first positioning assembly B110 and has a locked state and an unlocked state. Specifically, the first connecting mechanism B170 is provided on the connecting seat B112. When the first connecting mechanism B170 is in the locked state, the first connecting mechanism B170 is connected to the carrier body B300. When the first connecting mechanism B170 is in the unlocked state, the first connecting mechanism B170 is disassembled and detached from the carrier body B300. Specifically, a locking member B310 (such as a locking rod, see Figure 26) is provided at the bottom of the carrier body B300. The first connecting mechanism B170 includes a locking hook B171 and a locking groove B1121 provided on the connecting seat B112. The locking groove B1121 is used to accommodate the locking member B310 at the bottom of the carrier body B300. The locking hook B171 is pivotally connected to the connecting seat B112 and has a locked position and a released position. When the engaging hook B171 is in the locked position, it at least partially extends into the slot B1121 to engage and lock with the engaging member B310 of the carrier body B300. More specifically, the first positioning assembly B110 defines a first mounting cavity B113. The wall of the slot B1121 is provided with a through hole B1122 (see FIG. 20 ). Through hole B1122 connects the first mounting cavity B113 and the slot B1121. As shown in FIG. 27 and FIG. 28 , a support frame B114 is provided within the first mounting cavity B113. The engaging hook B171 is pivotally connected to the support frame B114 via a pivot axis B115. When the engaging hook B171 is in the locked position, it at least partially extends through the through hole B1122 and into the slot B1121 (see FIG. 23 and FIG. 24 ), to engage and lock with the engaging member B310. When the engaging hook B171 is located at the unlocking position, the engaging hook B171 withdraws from the engaging slot B1121 through the through hole B1122 (see FIG. 25 ).

[0144] In this embodiment, as shown in Figures 19, 20, and 26, the bottom of the carrier body B300 is generally provided with two engaging members B310 along the front-to-back direction, and two rows of engaging slots B1121 are formed on the connecting seat B112. Each row of engaging slots B1121 includes at least one engaging slot B1121. Specifically, as shown in Figures 19 and 20, each row of engaging slots B1121 includes two engaging slots B1121. In other words, four engaging slots B1121 are formed on the first positioning component B110, and the four engaging slots B1121 are arranged in a rectangular shape. The distance between the two rows of engaging slots B1121 arranged along the front-to-back direction is equal to the distance between the two engaging members B310 at the bottom of the carrier body B300. Correspondingly, four engaging hooks B171 are pivotally connected to the first positioning component B110, and each engaging slot B1121 corresponds to a engaging hook B171.

[0145] Referring to Figures 17 to 19 , in one embodiment, the positioning assembly B100 further includes a locking and retaining mechanism B230. The locking and retaining mechanism B230 is movably disposed within the first positioning assembly B110 and is used to maintain the connection between the first connecting mechanism B170 and the carrier body B300. Specifically, the locking and retaining mechanism B230 is movably disposed within the first mounting cavity B113. When the engaging hook B171 is driven to the locked position, the locking and retaining mechanism B230 is used to lock the engaging hook B171 in the locked position.

[0146] Continuing with Figures 17 to 19 , in one embodiment, the locking and retaining mechanism B230 includes a first locking member B231. The first locking member B231 is movably disposed within the first mounting cavity B113 and has a first position and a second position. Specifically, when the first positioning assembly B110 is oriented in the first direction F1, the first locking member B231 moves parallel to the first direction F1; when the first positioning assembly B110 is oriented in the second direction F2, the first locking member B231 moves parallel to the second direction F2. The first locking member B231 moves generally horizontally. When the first locking member B231 is in the first position, the first connecting mechanism B170 is locked; when the first locking member B231 is in the second position, the first connecting mechanism B170 is released. In one embodiment, one of the first locking member B231 and the engaging hook B171 is provided with a locking groove B2311, and the other is provided with an engaging portion B1711. Specifically, as shown in FIG23 , in this embodiment, the engaging hook B171 is provided with an engaging portion B1711, and the first locking member B231 is provided with a locking groove B2311. More specifically, when the first locking member B231 is in the first position, the engaging portion B1711 engages with the locking groove B2311 to lock the engaging hook B171 in the locked position (see FIG23 and FIG24 ), thereby placing the first connecting mechanism B170 in a locked state. When the first locking member B231 is in the second position, the engaging portion B1711 disengages from the locking groove B2311, allowing the engaging hook B171 to switch between the locked position and the unlocked position, thereby placing the first connecting mechanism B170 in a unlocked state. It should be noted that, in this embodiment, as shown in FIG. 23 and FIG. 28 , four locking grooves B2311 are provided on the first locking member B231 , and each locking groove B2311 is used to respectively cooperate with and lock with the engaging portion B1711 of each engaging hook B171 .

[0147] 27 and 28 , in one embodiment, the locking and retaining mechanism B230 further includes a third return element B232, which is configured to provide an elastic return force to the first locking element B231, thereby maintaining the first locking element B231 in the first position. The third return element B232 is, for example, a spring. Thus, as shown in FIG23 to FIG25 , when the engaging hook B171 pivots from the unlocked position to the locked position, the third return element B232 automatically switches the first locking element B231 to the first position, allowing the locking groove B2311 of the first locking element B231 to engage with the engaging portion B1711 of the engaging hook B171 to lock the engaging hook B171 and maintain the engaging hook B171 in the locked position. This improves the stability and reliability of the mounting of the carrier body B300 on the first positioning assembly B110.

[0148] In one embodiment, the first connecting mechanism B170 further includes a second reset member (not shown) that is used to maintain the engaging hook B171 in the unlocked position. The second reset member, for example, is a torsion spring that is mounted on the pivot axis B115 and abuts against the engaging hook B171. Thus, when the first locking member B231 moves to the second position, the engaging hook B171 automatically rotates about the pivot axis B115 to the unlocked position, allowing for smooth and convenient unlocking and preventing the engaging hook B171 from becoming locked.

[0149] Referring to Figures 24, 25, and 30, in one embodiment, the positioning assembly B100 further includes a first release member B240 movably disposed on the first positioning assembly B110 to facilitate user manipulation of the first locking member B231. The first release member B240 engages with the first locking member B231 in a driving manner. The first release member B240 is operable to drive the first locking member B231 to move from a first position to a second position. Thus, the user can switch the first locking member B231 from the first position to the second position by manipulating the first release member B240. Specifically, the first release member B240 includes a driving slope B241 that extends obliquely along the direction of movement of the first release member B240. The first locking member B231 also includes a driving portion B2312 that is adapted to be pushed against and slide along the driving slope B241 to enable the first locking member B231 to switch between the first and second positions. More specifically, the first release member B240 can move up and down approximately along the vertical direction on the first positioning assembly B110, and the moving direction of the first release member 240 intersects with the first locking member B231. Optionally, the moving direction of the first release member B240 is perpendicular to the moving direction of the first locking member B231.

[0150] Referring to Figures 24 and 25 , the mating relationship between the first release member B240 and the first locking member B231 is briefly described. Specifically, when the first locking member B231 is in the first position, the driving portion B2312 of the first locking member B231 abuts against the top of the driving bevel B241 of the first release member B240. When the first release member B240 is pushed upward in a vertical direction, the driving portion B2312 gradually shifts its relative position on the driving bevel B241 from the top to the bottom of the driving bevel B241, guided by the driving bevel B241. This in turn causes the first locking member B231 to move from the first position to the second position, thereby allowing the engaging portion B1711 to disengage from the locking groove B2311.

[0151] Referring to Figures 24, 25, 28, and 29, in one embodiment, the positioning assembly B100 further includes a second release member B250, which is movably mounted on the first positioning assembly B110 and has an unlocked position and a locked position. The second release member B250 also engages with the first locking member B231. When the second release member B250 is in the locked position, the first locking member B231 is in the first position. When the second release member B250 is in the unlocked position, the first locking member B231 is in the second position. This allows the user to control the position of the first locking member B231 by operating the second release member B250. It should be noted that in this embodiment, the movement direction of the second release member B250 is parallel to that of the first locking member B231. When the first positioning assembly B110 faces the first direction F1, the moving direction of the second releasing member B250 is parallel to the first direction F1; when the first positioning assembly B110 faces the second direction F2, the moving direction of the second releasing member B250 is parallel to the second direction F2.

[0152] In conjunction with Figures 28 to 32, in one embodiment, the second release member B250 is provided with a resisting portion B251, and the first locking member B231 is further provided with a pushing portion B2313. The resisting portion B251 and the pushing portion B2313 are driven to cooperate, and the second operating member B250 can be operated to drive the first locking member B231 to switch from the first position to the second position. Specifically, one of the resisting portion B251 and the pushing portion B2313 can be a recessed portion, and the other can be a convex portion, and the two can be plugged together for driving cooperation. For example, in this embodiment, the resisting portion B251 includes a resisting recessed portion B2511, which faces the pushing portion B2313 and extends along the movement direction of the second release member B250, and the pushing portion B2313 is movably inserted into the resisting recessed portion B2511. When the second release member B250 is operated and moves from the locked position to the unlocked position, the second release member B250 drives the pushing portion B2313 to move by pushing the rear side wall B2511a of the recess B2511 to drive the first locking member B231 to switch from the first position to the second position.

[0153] In one embodiment, as shown in Figures 29 and 32, the second release member B250 further comprises a guide slot B252 extending along the direction of movement of the second release member B250. A guide post B116 is disposed within the first mounting cavity B113 and inserted into the guide slot B252. The guiding engagement between the guide post B116 and the guide slot B252 prevents the second release member B250 from shifting during movement. In this embodiment, there are two guide slots B252, one on each side of the second release member B250. Each guide post B116 guides and engages with a corresponding guide slot B252. Furthermore, each guide slot B252 comprises an elastic member B254, which is primarily used to provide elastic restoring force to the second release member B250, thereby maintaining the second release member B250 in the locked position.

[0154] As shown in Figures 24, 25, and 29, in one embodiment, the second release member B250 is provided with a gripping recess B253. Thus, when a user needs to operate (e.g., pull) the second release member B250, they can place their fingers in the gripping recess B253 to quickly pull the second release member B250 to move it.

[0155] 15 , 23 , 29 , and 32 , the mating relationship between the second release member B250 and the first locking member B231 will be briefly described, using the example of the first positioning assembly B110 facing the right side of the vehicle (i.e., direction R) along the second direction F2. Specifically, when the first locking member B231 is in the first position, the pushing portion B2313 of the first locking member B231 abuts against the rear side wall B2511a of the abutting recess B2511 of the second release member B250 (see FIG. 29 ). When the second release member B250 is pulled to the right along the second direction F2, the rear side wall B2511a of the pushing recess B2511 of the second release member B250 pushes the pushing portion B2313 of the first locking member B231 to push the pushing portion B2313 to move to the right along the second direction F2, thereby causing the first locking member B231 to move to the second position, so that the engaging portion B1711 can disengage from the locking groove B2311.

[0156] In one embodiment, the first release member B240 and the second release member B250 are disposed relative to each other along the circumferential direction of the first positioning assembly B110 (see Figures 19 and 20). Specifically, the first release member B240 and the second release member B250 are disposed relative to each other along the movement direction of the first locking member B231 (see Figures 27 and 28). In this embodiment, the second release member B250 is located near the front-row engaging hook B171 (or engaging slot B1121), and the first release member B240 is located near the rear-row engaging hook B171 (or engaging slot B1121). Specifically, the first release member B240 is located at the rear end of the extending direction of the connecting seat B112. That is, the first release member B240 can be considered to be located at the rear end of the first positioning assembly B110. More specifically, the first release member B240 is located near the avoidance recess B210. The second release member B250 is located at the front end of the connecting base B112 in the extending direction, that is, the second release member B250 can be regarded as located at the front end of the first positioning assembly B110. The first release member B240 and the second release member B250 are both driven and engaged with the first locking member B231. In this way, as shown in Figure 15, when the carrier body 300 (such as a basket, see Figure 26) rotates toward the second direction F2 with the first positioning component B110 relative to the second positioning component B120, that is, when the first positioning component B110 rotates to the side (left direction or right direction) relative to the second positioning component B120, the second release member B250 is pulled outward in the second direction F2 with the first positioning component B110 relative to the second positioning component B120 to protrude toward the side (that is, the left side or the right side) to be closer to the side door and at the same time face the user for easy operation by the user, and the user can control the state of the first connecting mechanism B170 through the second release member B250 located at the front end of the first positioning component B110; in other words, the user can control the position of the locking hook B171 through the second release member B250 to remove the carrier body B300 from the first positioning component B110. In one embodiment, when the first positioning assembly B110 rotates relative to the second positioning assembly B120 in the second direction F2, that is, the front end of the first positioning assembly B110 is oriented in the second direction F2, and since the second release member B250 is located at the front end of the first positioning assembly B110, the second release member B250 is pulled outward in the second direction F2 as the first positioning assembly B110 is pulled relative to the second positioning assembly B120, placing the second release member B250 closer to the side door. Thus, when disassembling the vehicle body B300 in a sideways direction, the user does not need to operate the first release member B240, which is located at the rear and farther away, to release the lock. Instead, the user can directly operate the second release member B250, which is located at the front. This makes disassembly of the vehicle body B300 more convenient and quick.It should be noted that because the second release member B250 is mounted on the first positioning assembly B110, when the first positioning assembly B110 rotates and slides relative to the second positioning assembly B120, the second release member B250 moves accordingly relative to the second positioning assembly B120. Therefore, "the second release member B250 is pulled outward in the second direction F2 relative to the second positioning assembly B120 along with the first positioning assembly B110" can be understood as: the second release member B250 rotates along with the first positioning assembly B110, ultimately also oriented in the second direction F2 and, along with the first positioning assembly B110, closer to the vehicle door, facilitating user operation. It should be noted that this does not refer to the movement of the second release member B250 itself, but rather to the synchronous position change driven by the first positioning assembly B110.

[0157] It should be noted that when the carrier body B300 is a seat, the second release member B250 is obscured by the seat. In this case, the user can release the locking hook 171 using the first release member B240. When the carrier body B300 is a carrycot, the second release member B250 is exposed. Therefore, when the carrycot is rotated to the second orientation F2 with the first positioning assembly B110 for use, the user can release the locking hook B171 by operating the second release member B250 with one hand (e.g., pulling it), while simultaneously removing the carrycot from the first positioning assembly B110 with the other hand, thereby improving operational convenience.

[0158] Typically, when the first positioning component B110 is rotated relative to the second positioning component B120 to face the first direction F1, when disassembling the carrier body B300, the user is generally located on the side of the positioning component B100 (such as the left or right side). At this time, the user can operate either the first release member B240 or the second release member B250. For example, when the user needs to control the state of the first connecting mechanism B170 through the first releasing member B240, the user can push the first releasing member B240 upward in the vertical direction, and the driving bevel B241 moves upward accordingly. Under the guidance and drive of the driving bevel B241, the relative position of the driving part B2312 on the driving bevel 241 gradually switches from the top end of the driving bevel B241 to the bottom end of the driving bevel B241, thereby pushing the entire first locking member B231 to move forward to switch to the second position. At the same time, the engaging part B1711 withdraws from the locking groove B2311, and the engaging hook B171 automatically switches to the releasing position under the action of the second reset member. In this way, the engaging member B310 can be disengaged from the engaging hook B171. It should be noted that when the first locking member B231 is in the first position, the pushing portion B2313 is located at the rear side wall B2511a of the pushing recess B2511 along the extension direction of the pushing recess B2511 (as shown in FIG. 29 ). A clearance exists between the pushing portion B2313 and the front side wall B2511b of the pushing recess B2511. Therefore, when the driving inclined surface B241 pushes the first locking member B231 toward the second position, the pushing portion B2313 moves within the clearance. Only when the travel of the first locking member B231 (equivalent to the distance between the first and second positions) exceeds the length of the clearance will the pushing portion B2313 drive the second release member B250 from the locked position to the unlocked position. When the travel of the first locking member B231 is less than or equal to the length of the clearance, the second release member B250 remains relatively stationary during the process of pressing the first release member B240 to remove the carrier body B300. Alternatively, for example, when a user desires to control the state of the first connecting mechanism B170 via the second release member B250, the user can pull the second release member B250 horizontally outward to move the second release member B250 from the locked position to the unlocked position. During the movement of the second release member B250, the abutting recess B2511 moves accordingly, and the pushing portion B2313 abuts against the rear sidewall B2511a of the abutting recess B2511, driving the first locking member B231 from the first position to the second position. This allows the engaging portion B1711 to retract from the locking recess B2311, and the engaging hook B171 automatically switches to the unlocked position under the action of the second return member. It should be noted that during the movement of the first locking member B231 by the second release member B250, the driving portion B2312 moves with the first locking member B231, gradually moving away from the driving slope B241. During this process, the first release member B240 remains relatively stationary.

[0159] Referring to Figures 27, 28, and 31, in one embodiment, the first positioning assembly B110 is provided with a release indicator mechanism B290. This release indicator mechanism B290 can directly indicate whether the engaging hook B171 is in the locked or released position based on the position of the first locking member B231 within the first mounting cavity B113. Specifically, as shown in Figure 27, the release indicator mechanism B290 includes a swinging member B291, a color block B292, and an observation hole B293. The swinging member B291 is disposed within the first mounting cavity B113 and pivotally connected to the bottom wall of the support base B111, forming a first pivot point Q1. One end of the swinging member B291 is pivotally connected to the first locking member B231. When the first locking member B231 switches between the first and second positions, the first locking member B231 drives the swinging member B291 to swing about the first pivot point Q1. More specifically, the other end of the swinging member B291 is provided with a color block B292 (e.g., green or red). A viewing hole B293 is provided on the top wall of the support base B111. As previously mentioned, when the first release member B240 or the second release member B250 is operated, the first locking member B231 moves from the first position to the second position. At this point, the end of the swinging member B291 pivotally connected to the first locking member B231 moves with the first locking member B231, causing the entire swinging member B291 to pivot. This in turn causes the other end of the swinging member B291, which is provided with the color block B292, to move. This allows a user to determine the position of the first locking member B231 and, consequently, the position of the engaging hook B171 by observing whether the color block B292 is visible in the viewing hole B293. Specifically, in this embodiment, when the first locking member B231 is in the first position, the color block B292 is opposite the viewing hole B293, allowing the user to view the color block B292 through the viewing hole B293. When the first locking member B291 is in the second position, the color block B292 is misaligned with the viewing hole B293, making it impossible for the user to see the color block B292 through the viewing hole B293. Therefore, when the color block B292 is visible through the viewing hole B293, it indicates that the latch hook B171 is in the locked position; when the color block B292 is not visible through the viewing hole B293, it indicates that the latch hook B171 is in the released position. Of course, in other embodiments, when the first locking member B291 is in the first position, the color block B292 is misaligned with the viewing hole B293, making it impossible for the user to see the color block B292 through the viewing hole B293. However, when the first locking member B291 is in the second position, the color block B292 is aligned with the viewing hole B293, allowing the user to see the color block B292 through the viewing hole B293. Alternatively, each swinging member B291 is provided with two color blocks B292 of different colors (for example, green and red), and the two color blocks B292 correspond to the first locking member B231 in the first position and the second position respectively. In this way, the user can check the color of the color block B292 through the observation hole B293 to determine whether the engaging hook B171 is in the locked position or the released position.

[0160] In conjunction with Figures 17 and 33 , in one embodiment, a first support mechanism B128 may be further provided within the second mounting cavity B123 of the second positioning assembly B120. On one hand, when the carrier body B300 is connected to the first positioning assembly B110 and the first positioning assembly B110 is rotated relative to the second positioning assembly B120 toward the first direction F1, the first support mechanism B128 is used to auxiliary support the carrier body B300, thereby improving the stability of the carrier body B300 when mounted on the first positioning assembly B110. On the other hand, the first support mechanism B128 of this embodiment is at least partially located within the groove structure B270 of both the first protrusion B124 and the second protrusion B125. The first support mechanism B128 of this embodiment may be used to strengthen the groove wall strength of the groove structure B270 previously described for engaging the first positioning assembly B110. In this embodiment, two first support mechanisms B128 are provided, one on each of the first protrusion B124 and the second protrusion B125.

[0161] The structure of the first support mechanism B128 located at the rear end of the second positioning assembly B120 will be described in detail below by taking an example. In conjunction with Figures 17 and 33 to 35, the first support mechanism B128 may include a first support member B1281 and a second support member B1282. In this embodiment, as shown in Figures 34 and 35, the second positioning assembly B120 also includes a skeleton B129 disposed in the second mounting cavity B123. The skeleton B129 is generally U-shaped and includes a first straight rod B1291 and a second straight rod B1292 extending along the front-to-back direction (i.e., the first direction F1) of the second positioning assembly B120 and spaced apart along the left-to-right direction (i.e., the second direction F2), as well as an arc-shaped rod B1293 whose two ends are respectively connected between the first straight rod B1291 and the second straight rod B1292. In this embodiment, the first support member B1281 located at the rear end of the second positioning assembly B120 is a U-shaped rod, with its ends respectively fixed to the first straight rod B1291 and the second straight rod B1292. There is one second support member B1282, which is disposed on the upper surface of the first support member B1281. Of course, in other embodiments, the number of second support members B1282 may be two or more.

[0162] Please refer to Figures 33 and 35. The second support member B1282 is generally a U-shaped frame structure and includes two connecting pieces B12821 arranged opposite each other, and a connecting piece B12822 connected between the two connecting pieces B12821. Each connecting piece B12821 includes a connecting body B12821a and a supporting protrusion B12821b protruding from the approximately middle portion of the connecting body B12821a. In this embodiment, the connecting pieces B12821 are all integrally formed structures, that is, the supporting protrusion B12821b and the connecting body B12821a are integrally formed. In other embodiments, the connecting piece B12821 can also be formed by connecting the connecting body B12821a and the supporting protrusion 1B2821b through welding, riveting, etc. The lower surfaces of the connecting body B12821a and the supporting protrusion B12821b form a fixed groove (not shown), into which the first support member B1281 is at least partially engaged, thereby supporting the second support member B1282 on the first support member B1281. Furthermore, to increase the stability of the connection between the first support member B1281 and the second support member B1282, the portion of the connecting body B12821a located below the supporting protrusion B12821b and the lower surface of the supporting protrusion B12821b are fixedly connected to the first support member B1281. The upper surface of the supporting protrusion B12821b, the connecting body B12821a, and the connecting piece B12822 form a locking groove B12821c. Specifically, the connecting piece B12822 includes a connecting body B12822a and abutting protrusions B12822b protruding around the lower surface of the connecting body B12822a. The connecting body B12822a has a roughly square sheet structure. The two abutting protrusions B12822b arranged along the spacing direction of the two connecting pieces B12821 are respectively connected to the two connecting bodies B12821a. The lower surface of the supporting protrusion B12821b, the connecting body B12821a and the abutting protrusions B12822b enclose a locking groove B12821c.

[0163] In this embodiment, please refer to Figures 16, 18, and 35. The first protrusion B124 and the second protrusion B125 are provided with a connecting hole (not shown in the drawings) that is connected to the second installation cavity B123 on the side facing the installation space B126. The connecting hole is specifically located at the bottom of the groove of the groove structure B270. The first support member B1281 is located in the second installation cavity B123, and the portion of the second support member B1282 located below the upper surface of the supporting protrusion B12821b is located in the second installation cavity B123. The portion of the second support member B1282 located above the upper surface of the supporting protrusion B12821b extends out of the second installation cavity B123 through the connecting hole and protrudes from the upper surface of the top cover B121. The abutting protrusion B12822b of the connecting piece B12822 is located below the limiting protrusion B127. It can be understood that the two second support members B1282 respectively form a part of the first convex body B124 and the second convex body B125, so that the engaging groove B12821c corresponds to the position of the groove structure B270, thereby increasing the mechanical strength of the groove structure B270.

[0164] In this embodiment, the limiting protrusion B127 (or the first protrusion B124 and the second protrusion B125) is generally made of plastic material, while the second support member B1282 is made of a rigid material (such as a metal sheet). Therefore, the second support member B1282 can strengthen the structural strength of the limiting protrusion B127 (or the first protrusion B124 and the second protrusion B125). When the first positioning component B110 is accommodated in the installation space B126, the bottom of the avoidance recess B210 of the first positioning component B110 (see Figures 21 and 22) can be inserted into the two groove structures B270, that is, inserted into the two engaging grooves B12821c located in the front-to-back direction (i.e., the first direction F1) of the second positioning component B120 (see Figure 18), which can further prevent the first positioning component B110 from arbitrarily separating from the second positioning component B120. Furthermore, the width of the second support member B1282 in the left-right direction (i.e., the distance between the two connecting pieces B12821) is slightly smaller than the width of the bottom of the U-shaped rod of the first support member B1281 in the left-right direction, and the width of the second support member B1282 in the left-right direction (i.e., the distance between the two connecting pieces B12821) matches the width of the first protrusion B124 or the second protrusion B125 in the left-right direction. Thus, the wider second support member B1282 can increase the contact area between the abutting protrusion B12822b and the bottom of the avoidance recess B210 of the first positioning assembly B110, thereby increasing the strength of the second support member B1282 during abutment, and thereby improving the stability of the first positioning assembly B110 when installed on the second positioning assembly B120.

[0165] Furthermore, as shown in Figures 22 and 33, the first support mechanism B128 may further include an auxiliary support member B1283, which is disposed inside the second support member B1282. The auxiliary support member B1283 includes interconnected support columns B12831 and a generally C-shaped support body B12832. The support body B12832 includes a first auxiliary piece B12832a, a second auxiliary piece B12832b, and a third auxiliary piece B12832c, which are sequentially connected and disposed at an angle. Specifically, when the auxiliary support member B1283 is disposed inside the second support member B1282, the auxiliary support member B1283 is located between the two connecting pieces B12821, the upper surface of the first auxiliary piece B12832a is flush with the upper surface of the supporting protrusion B12821b, the lower surface of the third auxiliary piece B12832c is flush with the end of the abutting protrusion B12822b facing away from the connecting body B12822a, and the support column B12831 is used to abut between the first support member B1281 and the supporting body B12832. In other words, the second support member B1282 and the auxiliary support member B1283 together form a portion of the first protrusion B124 or the second protrusion B125, and the first auxiliary piece B12832a, the second auxiliary piece B12832b, and the third auxiliary piece B12832c together form the above-mentioned groove structure B270. When the first positioning component B110 is facing in the first direction F1, the bottom of the avoidance recess B210 of the first positioning component B110 can be supported by the first auxiliary piece B12832a of the support body B12832 (combined with Figures 18 and 22), and can be abutted by the third auxiliary piece B12832c of the support body B12832. Since the support area and the abutment area are both increased, it can play a certain force-relieving role, reducing the pressure per unit support area and per unit abutment area, thereby further assisting in supporting the first positioning component B110, that is, assisting in supporting the carrier body B300, so as to improve the stability of the carrier body B300 installed on the first positioning component B110.

[0166] It should be noted that, along the front-to-back direction, the structure of the first support mechanism B128 located at the front end of the second positioning assembly B120 is roughly similar to the structure of the first support mechanism B128 located at the rear end of the second positioning assembly B120. The only difference is that, since the second positioning assembly B120 as a whole presents a low front and high back structure, the first support member B1281 of the first support mechanism B128 located at the front end of the second positioning assembly B120 is a straight rod rather than a U-shaped rod (see Figure 34). In addition, it should be noted that, in some embodiments, from the perspective of the structure of the carrier body B300, the thickness of the bottom of the carrier body B300 for supporting the child's buttocks is less than the thickness of the part for supporting the child's legs, and the lower surface of the bottom of the carrier body B300 is inclined; in other words, the bottom of the carrier body B300 is thicker in the front and thinner in the back, and the lower surface of the bottom is inclined. In order to ensure that the child riding in the carrier body B300 can be in a roughly horizontal sitting position when the carrier body B300 is installed on the positioning assembly B100 and faces the front of the car, the upper surface of the second positioning assembly B120 is arranged in a structure with the front lower and the back higher, so that it can roughly fit with the lower surface of the bottom of the carrier body B300, so that the carrier body B300 can be installed on the positioning assembly B100 more stably. In addition, the inclined surface matching method is more conducive to the rotation and sliding of the carrier body B300 relative to the second positioning assembly B120 with the first positioning assembly B110. Of course, in other embodiments, the bottom of the carrier body B300 can be planarly matched with the second positioning assembly B120, so that the two first support members B1281 located in the second mounting cavity B123 can both be straight rods or curved rods (such as U-shaped rods).

[0167] In one embodiment, the positioning assembly B100 further includes an anti-misuse mechanism B220 (see FIG46 ). The anti-misuse mechanism B220 is movably provided in the first positioning assembly B110 or the second positioning assembly B120, and is used to selectively allow or limit the movement of the first sliding member B141 or the second sliding member B142, thereby selectively limiting the rotation angle of the first positioning assembly B110 relative to the second positioning assembly B120. Specifically, in this embodiment, the anti-misuse mechanism B220 includes a blocking member (not shown in the figure), which is movably provided on the movement path of the second sliding member B142 within the second rail section B1312 to limit the first positioning assembly B110 from rotating relative to the second positioning assembly B120 to the direction toward the front of the vehicle.

[0168] In one embodiment, the anti-misuse mechanism B220 further includes a release assembly, which is disposed on the second positioning assembly B120 and connected to the blocking member. The release assembly is configured to drive the blocking member out of the second track segment B1312, thereby allowing the second sliding member B142 to move within the second track segment B1312. Specifically, as shown in Figures 36 and 37, the release assembly includes an operating member B221 and a traction member (not shown). The operating member B221 is movably disposed on the second positioning assembly B120 and has an unlocked position and a locked position. More specifically, a through-hole B1211 is provided in the top cover B121 (see Figures 16 and 36). The operating member B221 is movably disposed within the second mounting cavity B123. The operating portion of the operating member B221 extends through the through-hole B1211 into the second mounting cavity B123 and protrudes from the surface of the top cover B121, thereby facilitating user operation. The traction member connects the operating member B221 and the blocking member. When the operating member B221 switches from the locked position to the unlocked position, the operating member B221 drives the blocking member out of the second rail segment B1312 via the pulling member. In this embodiment, a support plate B222 is disposed within the second mounting cavity B123, and the operating member B221 is movably mounted on the support plate B222. Specifically, the support plate B222 and the operating member B221 may be straight plates. Of course, in other embodiments, the support plate B222 and the operating member B221 may be curved structures. This improves the smoothness of the left-right movement of the operating member B221 on the support plate B222.

[0169] In one embodiment, as shown in FIG28 , the positioning assembly B100 further includes a first limiting mechanism B260. The first limiting mechanism B260 is disposed between the first positioning assembly B110 and the second positioning assembly B120. When the vehicle body B300 is a seat, the first limiting mechanism B260 is configured to selectively allow or limit the seat from disengaging from the first positioning assembly B110. This can be considered as the first limiting mechanism B260 selectively allowing or limiting the first connecting mechanism B170 from switching between a locked and unlocked state. Specifically, when the seat rotates with the first positioning assembly B110 in a first direction F1 toward the front of the vehicle, the first limiting mechanism B260 limits the seat from disengaging from the first positioning assembly B110. When the first positioning assembly B110 rotates relative to the second positioning assembly B120 in the first direction F1 toward the rear of the vehicle and in the second direction F2, the first limiting mechanism B260 allows the seat to disengage from the first positioning assembly B110. More specifically, as shown in Figure 28, when the first positioning assembly B110 is facing the front of the car, the first limiting mechanism B260 enters the moving path of the locking and retaining mechanism B230 (i.e., the first locking member B231), limiting the movement of the locking and retaining mechanism B230, thereby keeping the locking hook B171 in the locked position.

[0170] Specifically, referring to Figures 16 and 21 , the first limiting mechanism B260 includes a first limiting groove B261 and a first limiting member B262. The first limiting groove B261 is provided on the top cover B121. A first limiting hole B1112 is provided at the bottom of the support base B111. The first limiting hole B1112 communicates with the first mounting cavity B113. The first limiting member B262 is movably disposed within the first mounting cavity B113, and at least a portion of the first limiting member B262 can extend out of the first mounting cavity B113 through the first limiting hole B1112. When the first limiting member B262 extends out of the first mounting cavity B113 through the first limiting hole B1112 and inserts into the first limiting groove B261, the first limiting member B262 retracts from the movement path of the first locking member B231, allowing the engaging hook B171 to be in the released position, thereby allowing the seat to be disengaged from the first positioning assembly B110. When the first stopper B262 withdraws from the first stopper groove B261, it lies within the movement path of the first locking member B231, restricting the engagement hook B171 from switching to the released position. This prevents the seat from being removed from the first positioning assembly B110. Specifically, when the first positioning assembly B110 rotates relative to the second positioning assembly B120 toward the front of the vehicle, the first stopper B262 withdraws from the first stopper groove B261. This prevents the seat from being removed from the first positioning assembly B110 when facing the front of the vehicle.

[0171] In conjunction with Figures 16 and 21, in one embodiment, the first limiting hole B1112 is located between the first sliding member B141 and the second sliding member B142, so that the first limiting member B262 is located between the first sliding member B141 and the second sliding member B142. When the first positioning assembly B110 rotates relative to the second positioning assembly B120 along the first direction F1 from facing the rear of the vehicle to facing the second direction F2, the sliding path of the first limiting member B262 coincides with the first limiting groove B261. Specifically, the first limiting hole B1112 is located at the midpoint between the first sliding member B141 and the second sliding member B142. The first limiting groove B261 is, for example, a semicircular groove, and the radius of the semicircular groove is the distance between the first limiting member B262 and the first sliding member B141. It should be noted that in this embodiment, the first sliding member B141 is disposed at the center of the first positioning assembly B110. Specifically, the opening of the semicircular groove faces the rear of the vehicle along a first direction F1. When the first positioning assembly B110 rotates relative to the second positioning assembly B120 toward the rear of the vehicle, the first limiting member B262 is located at the midpoint of the first limiting groove B261. Specifically, the two ends of the first limiting groove B261 are connected to the third rail segment B1321 and the fourth rail segment B1322, respectively. The first limiting groove B261 divides the first rail segment B1311, the third rail segment B1321, and the fourth rail segment B1322 into a first segment B1341 and a second segment B1342, respectively. The first segment B1341 is closer to the intersection center B133 than the second segment B1342.

[0172] It should be noted that in this embodiment, although the second rail segment B1312 is not divided into the first segment B1341 and the second segment B1342 by the first limiting groove B261, it can be understood that the portion of the second rail segment B1312 away from the intersection center B133 can also be considered the second segment B1342, and the portion of the second rail segment B1312 close to the intersection center B133 can also be considered the first segment B1341.

[0173] In one embodiment, the first sliding member B141 may include a first sliding rod B1411 and a first slider B1412 connected to each other (see Figures 48 and 49), and the second sliding member B142 may include a second sliding rod B1421 and a second slider B1422 connected to each other (see Figures 21 and 22), wherein the first slider B1412 is connected to the first positioning assembly B110 through the first sliding rod B1411, and the second slider B1422 is connected to the first positioning assembly B110 through the second sliding rod B1421. In one embodiment, the first track B131 may include a first channel and a first chute, and the second track B132 may include a second channel B1323 and a second chute B1324 (see Figures 46 and 47), wherein the first channel and the second channel B1323 are both arranged on the lower surface of the top cover B121, that is, facing the side of the second installation cavity B123, and the two intersect and communicate with each other, and the first channel and the second channel B1323 are both connected to the second installation cavity B123. The first chute is arranged inside the first channel, and the second chute B1324 is arranged inside the second channel B1323, and the first chute and the second chute B1324 are both through-groove structures that penetrate the upper and lower surfaces of the top cover B121. Specifically, when the first sliding member B141 slides along the second track B132, it can be regarded as the first sliding rod B1411 sliding in the second chute B1324, and the first slider B1412 sliding in the second channel B1323. When the second sliding member B142 slides along the first track B131 , it can be considered that the second sliding rod B1421 slides in the first sliding groove, and the second sliding block B1422 slides in the first channel.

[0174] It should be noted that the first sliding member B141 and the second sliding member B142 can both be integrally formed structures, that is, the first sliding member B1412 and the first sliding rod B1411 are integrally formed, and the second sliding member B1422 and the second sliding rod B1421 are integrally formed, and the second sliding member B1422 and the second sliding rod B1421 are integrally formed, and the second sliding member B1422 and the second sliding rod B1421 are integrally formed. Of course, in other embodiments, the first sliding member B1412 and the first sliding rod B1411 are different components, and the first sliding member B141 can be formed by connecting the first sliding member B1412 and the first sliding rod 1B411 through welding, riveting, etc.; the second sliding member B1422 and the second sliding rod B1421 are also different components, and the second sliding member B142 can be formed by connecting the second sliding member B1422 and the second sliding rod B1421 through welding, riveting, etc.

[0175] In one embodiment, when the first positioning component B110 is rotated relative to the second positioning component B120 to the left direction along the second direction F2, the first positioning component B110 is pulled outward along the left direction relative to the second positioning component B120 (see Figure 41); when the first positioning component B110 is rotated relative to the second positioning component B120 to the right direction along the second direction F2, the first positioning component B110 is pulled outward along the right direction relative to the second positioning component B120 (combined with Figures 15 and 16). 14 to 16 , when the first positioning assembly B110 is rotated to the second direction F2 relative to the second positioning assembly B120 to be pulled out, part of the first rail B131 and part of the second rail B132 on the second positioning assembly B120 are exposed. For example, as shown in FIG15 , when the first positioning assembly B110 is positioned along the second direction F2 toward the right side of the vehicle, the second section B1342 of the first rail segment B1311, the second section B1342 of the second rail segment B1312, the second section B1342 of the third rail segment B1321, and part of the first section B1341 of the third rail segment B1321 are exposed. In conjunction with Figures 16 and 41 , when the first positioning assembly B110 is oriented along the second direction F2 toward the left side of the vehicle, the second section B1342 of the first rail segment B1311, the second section B1342 of the second rail segment B1312, the second section B1342 of the fourth rail segment B1322, and a portion of the first section B1341 of the fourth rail segment B1322 are exposed. To prevent foreign objects from falling into the exposed first rail B131 and second rail B132 and affecting the normal use of the positioning assembly B100, and to prevent the user's hands from accidentally reaching into the exposed first rail B131 and second rail B132 during the rotation of the first positioning assembly B110 and causing injuries, the positioning assembly B100 provided in the first embodiment of the third aspect of the present application further includes a shielding mechanism B150 (see Figure 16 ). The shielding mechanism B150 is provided in the second positioning assembly B120 and is located at the track (the first track B131 and the second track B132 ). The shielding mechanism B150 can selectively shield at least a portion of the track.

[0176] Referring to Figures 16, 38, and 39, in one embodiment, the shielding mechanism B150 includes a shielding member B151. Specifically, the shielding member B151 includes a main shielding member B151a, which is disposed on the side of the second positioning assembly B120 facing the first positioning assembly B110. In one embodiment, the shielding mechanism B150 includes at least one of the above-mentioned main shielding members B151a, and at least one of the first rail segment B1311, the second rail segment B1312, the third rail segment B1321, or the fourth rail segment B1322 is provided with the main shielding member B151a. Specifically, in this embodiment, there are four main shielding members B151a. The first rail segment B1311 and the second rail segment B1312 of the first rail B131 are respectively provided with a main shielding member B151a, and the third rail segment B1321 and the fourth rail segment B1322 of the second rail B132 are also respectively provided with a main shielding member B151a.

[0177] The following takes the main shielding member B151a located at the fourth rail segment B1322 as an example to describe in detail the structure and setting position of the main shielding member B151a.

[0178] Referring to Figure 38, in one embodiment, a limiting recess B1212 is provided on the side of the second positioning assembly B110 facing the first positioning assembly B110. This is equivalent to providing a limiting recess B1212 on the side of the top cover B121 facing away from the second mounting cavity B123. This limiting recess B1212 is sunken relative to the upper surface of the top cover B121 and is disposed around the fourth rail segment B1322. In this embodiment, the limiting recess B1212 is disposed around a portion of the fourth rail segment B1322, specifically, around the second section B1342 of the fourth rail segment B1322. Therefore, when a main shielding member B151a is disposed in the limiting recess B1212, the main shielding member B151a can block the partial rail segment area extending along the length direction of the fourth rail segment B1322, that is, the main shielding member B151a can block the second section B1342 of the fourth rail segment B1322.

[0179] Specifically, referring to FIG39 , the main shielding member B151a may include a first shielding piece B1511 and a second shielding piece B1512, which are respectively disposed on opposite sides of the track and extend in opposite directions, with a sliding gap B1514 defined between the first shielding piece B1511 and the second shielding piece B1512. The sliding gap B1514 is connected to the fourth track segment B1322, and its orthographic projection on the second positioning assembly B120 is located within the fourth track segment B1322.

[0180] In order to prevent the main shielding member B151a from interfering with the rotation and sliding operations between the first positioning component B110 and the second positioning component B120 after being installed on the upper surface of the top cover B121, in this embodiment, the thickness of the main shielding member B151a (the first shielding piece B1511 and the second shielding piece B1512) is less than or equal to the depth of the limiting recess B1212.

[0181] Referring to Figures 16, 38, and 39, in one embodiment, the first shielding piece B1511 and the second shielding piece B1512 each include a connecting portion B15111 and a shielding portion B15112. The connecting portion B15111 is connected to the retaining recess B1212, while the shielding portion B15112 extends obliquely relative to the connecting portion B15111 toward the interior of the fourth rail segment B1322. In other words, the shielding portion B15112 tends to extend toward the interior of the second chute B1324 of the fourth rail segment B1322, and the shielding portion B15112 can be considered to tend to extend obliquely downward. This ensures that the second slider B142 can slide smoothly from the intersection center B133 along the fourth rail segment B1322 toward the end away from the intersection center B133, preventing interference between the first shielding piece B1511 and the second shielding piece B1512 and the second slider B142.

[0182] In one embodiment, the connection portion B15111 can be connected to the limiting recess B1212 by bonding, clamping or riveting. Specifically, in this embodiment, the connection portion B15111 is connected to the limiting recess B1212 by bonding.

[0183] In one embodiment, the main shielding member B151a is a flexible soft structure, so that the main shielding member B151a has an initial state and a deformed state. Specifically, the diameter D1 of the first sliding rod B1411 is greater than the width M1 of the sliding gap B1514 (see Figures 39 and 49). When the first sliding rod B1411 is located within the sliding gap B1514 of the main shielding member B151a on the third rail segment B1321 or the fourth rail segment B1322, under the pressure of the first sliding rod B1411, the main shielding member B151a located on the third rail segment B1321 or the fourth rail segment B1322 undergoes elastic deformation to enter a deformed state. At this time, the shielding portion B15112 of the first shielding piece B1511 and the shielding portion B15112 of the second shielding piece B1512 are moved away from each other under the pressure of the first sliding rod B1411. When the first sliding rod B1411 moves out of the sliding gap B1514 of the main shielding member B151a located on the third rail segment B1321 or the fourth rail segment B1322, the main shielding member B151a is reset to its initial state. At this time, the shielding portion B15112 of the first shielding piece B1511 and the shielding portion B15112 of the second shielding piece B1512 are close to each other, and the first shielding piece B1511 and the second shielding piece B1512 cooperate to cover the third rail segment B1321 or the fourth rail segment B1322. It should be noted that, in this embodiment, the diameter D2 of the second sliding rod B1421 is also greater than the width M1 of the sliding gap B1514 (see Figures 22 and 39). Therefore, when the second sliding rod B1421 is located within the sliding gap B1514 of the main shielding member B151a on the first rail segment B1311 or the second rail segment B1312, under the compression of the second sliding rod B1421, the main shielding member B151a located on the first rail segment B1311 or the second rail segment B1312 undergoes elastic deformation and is in a deformed state. In short, it can be understood that when the sliding member moves into the sliding gap B1514, the main shielding member B151a is squeezed and is in a deformed state. When the sliding member moves out of the sliding gap B1514, the main shielding member B151a returns to its initial state to block the corresponding track.

[0184] In one embodiment, the main shielding member B151a can be made of materials such as rubber, silicone, TPV, TPR, TPO, TPU, TPEE or TEP. In this way, the main shielding member B151a on the fourth rail segment B1322 will not block the first sliding member B141 from sliding along the fourth rail segment B1322. At the same time, when the first sliding member B141 does not enter the fourth rail segment B1322, the main shielding member B151a can automatically reset to its initial state to block the fourth rail segment B1322, thereby effectively reducing the risk of foreign objects falling into the fourth rail segment B1322. At the same time, it also effectively reduces the probability of the user's hand accidentally reaching into the fourth rail segment B1322. It should be noted that the main shielding member B151a should not be limited to being made of one of the eight materials mentioned above. Furthermore, the phrase "main shielding member B151a automatically returns to its initial position to block fourth rail segment B1322" does not mean that the main shielding member B151a completely covers the width of the fourth rail segment B1322. Rather, it means that, except for the area occupied by the sliding gap B1514 corresponding to the fourth rail segment B1322, the remaining area is effectively blocked. In this embodiment, the width M1 of the sliding gap B1514 is relatively small, even close to zero. This ensures that the main shielding member B151a effectively blocks the fourth rail segment B1322 in its initial position.

[0185] Referring to Figures 16 and 39, in one embodiment, the main shielding member B151a may further include a first transition piece B1513, which is disposed at the end of the fourth rail segment B1322 away from the intersection center B133 and connects the first shielding piece B1511 and the second shielding piece B1512. Specifically, the first transition piece B1513 connects the connecting portion B15111 of the first shielding piece B1511 and the connecting portion B15111 of the second shielding piece B1512. It should be noted that the first shielding piece B1511, the first transition piece B1513, and the second shielding piece B1512 can be integrally formed; of course, in other embodiments, the first transition piece B1513 can also be connected between the first shielding piece B1511 and the second shielding piece B1512 by bonding or other means. The manner in which the first shielding piece B1511 and the second shielding piece B1512 are connected by the first transition piece B1513 can improve the convenience of setting the main shielding component B151a at each track section.

[0186] It should be noted that in this embodiment, the main shielding member B151a located in the second section B1342 may include a first transition piece B1513, that is, the main shielding member B151a includes a first shielding piece B1511, a first transition piece B1513, and a second shielding piece B1512 connected in sequence. Of course, the first transition piece B1513 may also be omitted from the main shielding member B151a located in the second section B1342, that is, the main shielding member B151a only includes the relatively independent first shielding piece B1511 and the second shielding piece B1512.

[0187] Of course, in other embodiments, the structure of the main shielding member B151a can also be considered as having a sliding slit B1514, and at least one end of the sliding slit B1514 passes through the main shielding member B151a, so that the main shielding member B151a forms a first shielding piece B1511 and a second shielding piece B1512. For example, one end of the sliding slit B1514 passes through the main shielding member B151a to divide the main shielding member B151a into a first shielding piece B1511 and a second shielding piece B1512 (not shown in the figure). Alternatively, both ends of the sliding slit B1514 penetrate the main shielding member B151a to divide the main shielding member B151a into a first shielding piece B1511 and a second shielding piece B1512 that are independent of each other (see Figures 39 and 47, but in Figure 39, the two independent first shielding pieces B1511 and second shielding pieces B1512 are connected by a first transition piece B1513). Specifically, in this embodiment, both ends of the main shielding member B151a are penetrated by the sliding slit B1514.

[0188] Referring to Figures 16 and 38, specifically, in this embodiment, the end of the second rail segment B1312 away from the intersection center B133, the second segment B1342 of the first rail segment B1311, the second segment B1342 of the third rail segment B1321, and the second segment B1342 of the fourth rail segment B1321 are all provided with the above-mentioned main shielding member 151a.

[0189] Referring to Figures 16 and 38, in one embodiment, the second positioning assembly B120 is further provided with a raised structure B280 on the side facing the first positioning assembly B110, and the raised structure B280 is arranged around the edge of each track. Specifically, the raised structure B280 is raised relative to the upper surface of the top cover B121, and the raised structure B280 is made of a hard and wear-resistant material, such as a metal material. In this way, when the first positioning assembly B110 rotates and slides along the track relative to the second positioning assembly B120, the raised structure B280 can provide sliding support for the first positioning assembly B110, preventing the upper surface of the second positioning assembly B120 (i.e., the upper surface of the top cover B121) from being scratched by the first positioning assembly B110 during the movement of the first positioning assembly B110. It should be noted that in this embodiment, the height of the raised structure B280 is greater than the thickness of the main shielding member B151a, and the edge of the first limiting groove B261 is also provided with a raised structure B280.

[0190] Figure 40 shows a stereoscopic view of a positioning assembly B100 provided according to the second embodiment of the third aspect of the present application. The positioning assembly B100 may include a first positioning assembly B110, a second positioning assembly B120, and a shielding mechanism B150. The positioning assembly B100 in this embodiment is a variation of the positioning assembly B100 of the first embodiment described above. Therefore, in the absence of conflict, the structures of the various components of the positioning assembly B100 in this embodiment and the connection relationship and positional relationship between the components can be found in the description of the first embodiment of the third aspect above. The following mainly describes the differences between this embodiment and the first embodiment of the third aspect described above.

[0191] In this embodiment, in addition to the main shielding member B151a described above, the shielding member B151 also includes an auxiliary shielding member B151b. The auxiliary shielding member B151b is also located on the side of the second positioning assembly B120 facing the first positioning assembly B110. The main shielding member B151a and the auxiliary shielding member B151b are each provided with at least one. The main shielding member B151a is provided on at least one of the end of the second rail segment B1312 away from the intersection center B133, the second section B1342 of the first rail segment B1311, the second section B1342 of the third rail segment B1321, and the second section B1342 of the fourth rail segment B1322, while the auxiliary shielding member B151b is provided on at least one of the first section B1341 of the third rail segment B1321 and the first section B1341 of the fourth rail segment B1322.

[0192] Specifically, in this embodiment, as shown in FIG40 , a main shielding member B151a is provided at the end of the second rail segment B1312 away from the intersection center B133, the second section B1342 of the first rail segment B1311, the second section B1342 of the third rail segment B1321, and the second section B1342 of the fourth rail segment B1322. Auxiliary shielding members B151b are provided at the first section B1341 of the third rail segment B1321 and the first section B1341 of the fourth rail segment B1322. It should be noted that the auxiliary shielding members B151b can have substantially the same structure as the main shielding member B151a and can be made of the same material as the main shielding member B151a. Therefore, the auxiliary shielding member B151b also has an initial state and a deformed state. When in the initial state, the auxiliary shielding member B151b can shield the corresponding first section B1341. Of course, in some embodiments, the structures and materials of the main shielding member B151a and the auxiliary shielding member B151b may differ. It should be reiterated that "the structure of the auxiliary shielding member B151b described above is substantially the same as that of the main shielding member B151a" refers to the fact that when the main shielding member B151a does not include the first transition piece B1513, the auxiliary shielding member B151b has the same structure as the main shielding member B151a. In other words, in this embodiment, the auxiliary shielding member B151b does not include the first transition piece B1513, allowing the first section B1341 to communicate with the second section B1342 and the intersection center B133, respectively, without interfering with the movement of the first slider B141. It is understood that when the first positioning assembly B110 rotates relative to the second positioning assembly B120 to the right or left along the second direction F2, the auxiliary shielding member B151b can shield the exposed first section B1341 of the third rail segment B1321 or the first section B1341 of the fourth rail segment B1322 (see Figures 15 and 40). This can further improve the reliability of the first positioning assembly B110's rotation and sliding relative to the second positioning assembly B120, thereby enhancing the safety and reliability of the positioning assembly B100.

[0193] Figures 41 and 42 show stereoscopic views of a positioning assembly B100 provided according to the third embodiment of the third aspect of the present application. The positioning assembly B100 may include a first positioning assembly B110, a second positioning assembly B120, and a shielding mechanism B150'. The positioning assembly B100 in this embodiment is a variation of the positioning assembly B100 of the first embodiment of the third aspect mentioned above. Therefore, in the absence of conflict, the structures of the various components of the positioning assembly B100 in this embodiment and the connection relationship and positional relationship between the components can be found in the description of the first embodiment of the third aspect above. The following mainly describes the differences between this embodiment and the first embodiment of the third aspect mentioned above.

[0194] With reference to Figures 42, 44, and 45, this embodiment modifies the structure and placement of shielding mechanism B150'. Shielding mechanism B150' includes a shielding member B151' and a mounting assembly B152. Shielding member B151' is positioned on the side of second positioning assembly B120 facing away from first positioning assembly B110. Specifically, shielding member B151' is secured to the side of top cover B121 facing second mounting cavity B123 via mounting assembly B152.

[0195] In one embodiment, at least one shielding member B151' is provided, and at least one of the first rail segment B1311, the second rail segment B1312, the third rail segment B1321, or the fourth rail segment B1322 is provided with the shielding member B151'. Specifically, in this embodiment, each of the aforementioned rail segments is provided with the shielding member B151'. The structure and location of the shielding member B151' will be described in detail below, using the shielding member B151' located on the fourth rail segment B1322 as an example.

[0196] Referring to Figures 43 to 47, the shielding member B151' has substantially the same structure as the main shielding member B151a in the first embodiment of the third aspect described above, and may include a first shielding piece B1511' and a second shielding piece B1512'; or may include a first shielding piece B1511', a first transition piece, and a second shielding piece B1512'. The length of the first shielding piece B1511' and the length of the second shielding piece B1512' may respectively be substantially the same as the length of the fourth rail segment B1322, so that the entire fourth rail segment B1322 may be protected. Of course, in other embodiments, the length of the first shielding piece B1511' and the length of the second shielding piece B1512' may be less than the length of the fourth rail segment B1322.

[0197] 44 and 47 , in this embodiment, the shielding member B151' comprises only a first shielding piece B1511' and a second shielding piece B1512'. Both the first shielding piece B1511' and the second shielding piece B1512' are located within the second channel B1323 of the fourth rail segment B1322, and are located on either side of the second chute B1324 along the first direction F1. As shown in Figures 45 and 49, the first shielding piece B1511 and the second shielding piece B1512 also include a connected connecting portion B15111' and a shielding portion B15112'. The shielding portion B15112' of the first shielding piece B1511' and the shielding portion B15112' of the second shielding piece B1512' extend obliquely toward the inner direction of the fourth rail segment B1322 relative to their corresponding connecting portion B15111'. In other words, the shielding portion B15112' has a tendency to extend toward the interior of the second slide groove B1324 of the fourth rail segment B1322 (towards the direction away from the second mounting cavity B123), that is, the shielding portion B15112' can be regarded as having a tendency to extend obliquely upward (see Figure 45). In this way, the second sliding member B142 can be ensured to slide smoothly from the intersection center B133 along the fourth track segment B1322 to the end away from the intersection center B133, avoiding interference between the first shielding piece B1511' and the second shielding piece B1512' and the second sliding member B142.

[0198] In one embodiment, the shielding member B151' is fixed to the top cover B121 by means of snap connection, bonding, or riveting. In this embodiment, as shown in Figures 45 and 47, the shielding member B151' is fixed to the top cover B121 via an installation assembly B152. The installation assembly B152 includes pressing members B1521, the number of which is the same as and corresponds to the number of shielding members B151'. The pressing members B1521 are located on the side of the top cover B121 facing the second installation cavity B123, and the shielding member B151' is fixed to the top cover B121 via its corresponding pressing member B1521.

[0199] In this embodiment, the structure of the pressing member B1521 is also described using the shielding member B151' and the pressing member B1521 located on the fourth rail segment B1322 as an example. Specifically, the pressing member B1521 is located within the second channel B1323 of the fourth rail segment B1322 and is disposed around the second slide groove B1324 of the fourth rail segment B1322. The pressing member B1521 is capable of pressing and securing the connecting portion B15111' of the first shielding piece B1511' and the connecting portion B15111' of the second shielding piece B1512' to both sides of the second slide groove B1324 along the first direction F1. More specifically, the pressing member B1521 may include a first pressing piece B15211, a second transition piece B15212, and a second pressing piece B15213 connected in sequence, and the second transition piece B15212 is arranged at an angle to the first pressing piece B15211 and the second pressing piece B15213, respectively. The first pressing piece B15211 is used to press and fix the connecting portion B15111' of the first shielding piece B1511' on one side of the second slide groove B1324 along the first direction F1, and the second pressing piece B15213 is used to press and fix the connecting portion B15111' of the second shielding piece B1512' on the other side of the second slide groove B1324 along the first direction F1. Of course, in other embodiments, the second transition piece B15212 may be omitted. It should be noted that the material of the pressing member B1521 may include, but is not limited to, being made of a hard material, such as a metal material.

[0200] Referring to Figures 44, 45, and 47, in one embodiment, the mounting assembly B152 further includes a fastener B1522 (such as a screw or bolt), and at least one fastener B1522 is provided. Specifically, the top cover B121 is provided with at least one first connection hole B1212, and the pressing member B1521 is provided with at least one second connection hole B15214. Specifically, at least three second connection holes B15214 can be provided, wherein the second transition piece B15212 is provided with at least one second connection hole B15214, the first pressing piece B15211 can also be provided with at least one second connection hole B15214, and the second pressing piece B15213 can also be provided with at least one second connection hole B15214, without specific limitation herein. In this way, the stability of the shielding member B151 fixed to the second positioning assembly B120 can be improved. The fastener B1522 is used to pass through the first connection hole B1212 and the second connection hole B15214 to connect the pressing member B1521 to the top cover B121. Through the cooperation of the fastener B1522 and the pressing member B1521, each shielding member B151 can be stably fixed under the corresponding rail segment.

[0201] Similarly, when the first sliding rod B1411 is located in the sliding gap B1514' of the shielding member B151' on the third rail segment B1321 or the fourth rail segment B1322, under the extrusion of the first sliding rod B1411, the shielding member B151' located on the third rail segment B1321 or the fourth rail segment B1322 undergoes elastic deformation to be in a deformed state. At this time, the shielding portion B15112' of the first shielding piece B1511' and the shielding portion B15112' of the second shielding piece B1512' move away from each other under the extrusion of the first sliding rod B1411, and the shielding member B151' will not interfere with the movement of the first sliding rod B1411. When the first sliding rod B1411 moves out of the sliding gap B1514' of the shielding member B151' located on the third rail segment B1321 or the fourth rail segment B1322, the shielding member B151' returns to its initial state. At this time, the shielding portion B15112' of the first shielding piece B1511' and the shielding portion B15112' of the second shielding piece B1512' approach each other. The first shielding piece B1511' and the second shielding piece B1512' cooperate to cover the third rail segment B1321 or the fourth rail segment B1322, preventing foreign matter from falling into the second mounting cavity B123 through the notch of the second slide groove B1323 and affecting the normal use of the positioning assembly B100. In short, it can be understood that when the sliding member moves into the sliding gap B1514', the shielding member B151' is squeezed and deformed. When the sliding member moves out of the sliding gap B1514 ′, the shielding member B151 ′ returns to the initial state to shield the corresponding track.

[0202] According to the foregoing description, each shielding member B151 (i.e., the main shielding member B151a and / or the auxiliary shielding member B151b) in the first embodiment of the third aspect and the second embodiment of the third aspect can be regarded as being located above the first chute and the second chute B1324, and each shielding member B151' in the third embodiment of the third aspect can be regarded as being located below the first chute and the second chute B1324. When the each shielding member B151 in the first embodiment of the third aspect and the second embodiment of the third aspect are in the initial state, the each shielding member B151 in the first embodiment of the third aspect and the second embodiment of the third aspect can both shield and protect the first track B131 and the second track B132. Similarly, when the shielding member B151' in the third embodiment of the third aspect is in the initial state, the each shielding member B151' in the third embodiment of the third aspect can also shield and protect the first track B131 and the second track B132.

[0203] It should be noted that, in the absence of a combination conflict, the features of the various embodiments covered by the first, second, and third aspects of this application can be combined with each other. The specific combination method can be flexibly determined according to the actual use scenario and needs, and is not specifically limited here.

[0204] In addition, it should be noted that the positioning assembly A100 in the first aspect of this application can be understood as a base. The first positioning assembly A110 can be understood as a turntable in the base, and the second positioning assembly A120 can be understood as a base in the base. Similarly, the positioning assembly B100 in the second and third aspects of this application can be understood as a base. The first positioning assembly B110 can be understood as a turntable in the base, and the second positioning assembly B120 can be understood as a base in the base.

[0205] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, 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.

[0206] The above embodiments merely illustrate several implementation methods of the present application. 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 a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A positioning component, characterized in that: include: a second positioning assembly for connecting to a car seat; a first positioning assembly, connected to the carrier body and rotatably disposed on the second positioning assembly, and capable of rotating relative to the second positioning assembly to face a first direction and a second direction, wherein the first direction and the second direction are staggered; When the first positioning assembly rotates to face the second direction, the first positioning assembly moves relative to the second positioning assembly along the second direction; as well as The second release member is provided on the first positioning assembly and is used to remove and release the carrier body from the first positioning assembly. When the first positioning assembly is rotated relative to the second positioning assembly to face the second direction, the second release member is pulled outward in the second direction relative to the second positioning assembly along with the first positioning assembly.

2. The positioning assembly according to claim 1, characterized in that The second releasing member is arranged at the front end of the first positioning assembly.

3. The positioning assembly according to claim 1, characterized in that The first positioning assembly is provided with a sliding member, and the second positioning assembly is provided with a track. The sliding member slides along the track, so that the first positioning assembly rotates and slides relative to the second positioning assembly.

4. The positioning assembly according to claim 1, characterized in that When the second positioning assembly is connected to the car seat, the first direction is the front direction and / or the rear direction of the car, and the second direction is the left direction and / or the right direction of the car.

5. The positioning assembly according to claim 1, characterized in that The positioning component also includes: a first connecting mechanism, disposed in the first positioning assembly and having a locked state and an unlocked state, wherein when in the locked state, the first connecting mechanism is connected to the carrier body; and when in the unlocked state, the first connecting mechanism is detached from the carrier body; and The locking and holding mechanism includes a first locking member, which is movably arranged in the first positioning assembly and has a first position and a second position; when the first locking member is in the first position, the first connecting mechanism is in the locked state, and when the first locking member is in the second position, the first connecting mechanism is in the unlocked state, and the second releasing member is driven to cooperate with the first locking member, and the second releasing member can be operated to drive the first locking member to move from the first position to the second position.

6. The positioning assembly according to claim 5, characterized in that The second locking member is movably provided on the first positioning assembly and has an unlocking position and a locking position. The second locking member is provided with a pushing portion, and the first locking member is also provided with a pushing portion. The pushing portion is driven to cooperate with the pushing portion. When the second locking member is in the locking position, the first locking member is in the first position. When the second locking member is in the unlocking position, the first locking member is in the second position.

7. The positioning assembly according to claim 6, characterized in that The pushing portion includes a pushing recess, which extends along the moving direction of the second release member. The pushing portion is movably inserted into the pushing recess. When the second operating member is operated and moves from the locked position to the unlocked position, the rear side wall of the pushing recess pushes the pushing portion to drive the first locking member to switch from the first position to the second position.

8. The positioning assembly according to claim 5, characterized in that The positioning assembly further includes a first release member movably provided on the first positioning assembly, the first release member drivingly cooperating with the first locking member, and the first release member can be operated to drive the first locking member to move from the first position to the second position.

9. The positioning assembly according to claim 8, characterized in that The first release member is provided with a driving slope, and the driving slope extends obliquely along the moving direction of the first release member. The first locking member is provided with a driving portion, and the driving portion is suitable for being pushed by the driving slope to move the first locking member from the first position to the second position.

10. The positioning assembly according to claim 8, characterized in that The moving direction of the first releasing member is intersected with the moving direction of the first locking member; and / or the moving direction of the second releasing member is parallel to the moving direction of the first locking member.

11. The positioning assembly according to claim 8, characterized in that The first release member and the second release member are arranged opposite to each other along the circumferential direction of the first positioning assembly, and the second release member is arranged at the front end of the first positioning assembly, and the first release member is arranged at the rear end of the first positioning assembly.

12. A positioning assembly for mounting a carrier body on a car seat, characterized in that: include: a second positioning assembly, for connecting to the car seat, the second positioning assembly being provided with a track; a first positioning assembly, configured to be connected to the carrier body, the first positioning assembly being provided with a sliding member, the sliding member sliding along the track so as to allow the first positioning assembly to rotate and slide relative to the second positioning assembly; as well as A shielding mechanism is provided on the second positioning assembly and located at the track to selectively shield at least a portion of the track.

13. The positioning assembly according to claim 12, characterized in that The shielding mechanism includes a shielding member, which includes a first shielding piece and a second shielding piece. The first shielding piece and the second shielding piece are respectively arranged on opposite sides of the track and extend in opposite directions, and a sliding gap is provided between the first shielding piece and the second shielding piece, and the sliding gap is connected to the track.

14. The positioning assembly according to claim 13, characterized in that The shielding member further includes a first transition piece, which is provided at an end of the track and connects the first shielding piece and the second shielding piece.

15. The positioning assembly according to claim 12, wherein: The shielding mechanism includes a shielding member, a sliding gap is formed on the shielding member, at least one end of the sliding gap passes through the shielding member, the shielding member covers the track, the sliding gap is connected to the track, and the positive projection of the sliding gap on the second positioning component is located on the track.

16. The positioning assembly according to claim 12, wherein: The shielding mechanism includes a shielding member, which is arranged on a side of the second positioning assembly facing the first positioning assembly.

17. The positioning assembly according to claim 16, characterized in that The second positioning component is provided with a limiting recess on the side facing the first positioning component, and the limiting recess is arranged around the track, and the shielding member is arranged in the limiting recess.

18. The positioning assembly according to claim 16, wherein: The track includes a first track and a second track arranged crosswise, the first track is divided by the second track to form a first track segment and a second track segment that are connected, the second track is divided by the first track to form a third track segment and a fourth track segment that are connected, and at least one of the first track segment, the second track segment, the third track segment, and the fourth track segment includes a first section and a second section that are connected; The shielding member includes a main shielding member, and the main shielding member is provided on at least one of the second sections; And / or, the shielding member includes an auxiliary shielding member, and the auxiliary shielding member is provided on at least one of the first sections.

19. The positioning assembly according to claim 12, wherein: The shielding mechanism includes a shielding member, which is arranged on a side of the second positioning assembly facing away from the first positioning assembly.

20. The positioning assembly according to any one of claims 15, 16 or 19, characterized in that The shielding member comprises a connecting portion and a shielding portion which are connected to each other. The connecting portion is arranged at the edge of the track, and the shielding portion extends obliquely relative to the connecting portion toward the inner direction of the track.

21. The positioning assembly according to claim 20, characterized in that The shielding mechanism also includes an installation component, which includes a pressing member. The pressing member is located on a side of the second positioning component away from the first positioning component and is arranged around the track. The pressing member is used to press and fix the connecting portion to the edge of the track.

22. The positioning assembly according to claim 21, characterized in that The shielding member includes a first shielding piece and a second shielding piece, and the pressing member includes a first pressing piece and a second pressing piece, the first pressing piece is used to press and fix the connecting part of the first shielding piece to one side of the track, and the second pressing piece is used to press and fix the connecting part of the second shielding piece to the other side of the track.

23. The positioning assembly according to any one of claims 12, 13, 15, 16 or 19, wherein: The track includes a first track and a second track arranged crosswise; The sliding member includes a first sliding member and a second sliding member, wherein the first sliding member slides along one of the first track or the second track, and the second sliding member slides along the other of the first track or the second track, so that the first positioning assembly slides simultaneously with the rotation of the second positioning assembly; The shielding mechanism includes at least one shielding member, and the first track and / or the second track are provided with the shielding member.

24. The positioning assembly according to claim 23, wherein: The first sliding member includes a first sliding rod, and the second sliding member includes a second sliding rod. The first sliding rod is connected to the first positioning assembly and slides in the second track. The second sliding rod is connected to the first positioning assembly and slides in the first track. The diameter D1 of the first sliding rod and / or the diameter D2 of the second sliding rod is greater than the width W1 of the sliding gap.

25. The positioning assembly according to claim 23, wherein: The second positioning component is provided with a first protrusion and a second protrusion spaced apart along the first direction, and a limiting protrusion is formed on the first protrusion and the second protrusion, and a groove structure is formed between the limiting protrusion and the upper surface of the second positioning component; when the first positioning component is rotated relative to the second positioning component to face the first direction, a part of the edge of the first positioning component is inserted into the groove structure.

26. The positioning assembly according to claim 13 or 15, characterized in that The shielding member has an initial state and a deformed state. When the sliding member moves out of the sliding gap, the shielding member resets to the initial state to block the track; when the sliding member moves into the sliding gap, the shielding member is squeezed to be in the deformed state.

27. A positioning component, characterized in that: include: a second positioning component; a first positioning assembly rotatably disposed on the second positioning assembly, wherein when the first positioning assembly is rotated relative to the second positioning assembly to face a second direction, the first positioning assembly is displaced relative to the second positioning assembly along the second direction; as well as The protection mechanism is disposed on the second positioning component and can slide relative to the second positioning component, and the first positioning component can rotate relative to the protection mechanism.

28. The positioning assembly according to claim 27, characterized in that The protection mechanism is sleeved outside the first positioning assembly. When the first positioning assembly rotates to the second direction relative to the second positioning assembly, the first positioning assembly drives and cooperates with the protection mechanism to move the protection mechanism on the second positioning assembly along the second direction.

29. The positioning assembly according to claim 27, wherein Two protrusions are formed on the second positioning component at intervals along a first direction, the first positioning component is located between the two protrusions, and the first direction intersects with the second direction; A groove structure is formed on one side of the two protrusions facing the first positioning component. The protective mechanism includes a protective shell, which is arranged around the outer periphery of the first positioning component. The outer edge of the protective shell is slidably arranged in the two groove structures.

30. The positioning assembly according to claim 27, wherein When the first positioning assembly is displaced relative to the second positioning assembly along the second direction, a portion of the outer edge of the protective shell is inserted into the two groove structures.

31. The positioning assembly according to claim 29, wherein The protective shell has a holding recess, and the outer edge of the first positioning component is inserted into the holding recess to limit the first positioning component from being separated from the protective shell when the first positioning component rotates relative to the protective shell.

32. The positioning assembly according to claim 31, characterized in that The protective shell includes: a cover body, which is an annular structure and is disposed around the outer periphery of the first positioning assembly, wherein the outer edge of the cover body is slidably disposed in the two groove structures; and The first limiting piece is arranged on one side of the cover body and is arranged at an angle with the inner ring wall of the cover body. The first limiting piece and the inner ring wall of the cover body form the holding recess, and the bottom wall of the holding recess is the inner ring wall of the cover body.

33. The positioning assembly according to claim 32, characterized in that The protective shell also includes a second limiting piece, which is arranged on the other side of the cover body and is arranged at an angle to the inner ring wall of the cover body. The first limiting piece, the inner ring wall of the cover body and the second limiting piece are sequentially enclosed to form the holding recess.

34. The positioning assembly according to claim 29, wherein The protective shell is provided with at least one first locking hole, the first positioning assembly is provided with at least one second locking hole, and the first locking hole corresponds to the second locking hole; A locking tongue is movably provided in the groove structure. When the first positioning assembly is rotated relative to the second positioning assembly to face the first direction, the locking tongue can pass through the corresponding first locking hole and the second locking hole to limit the rotation of the first positioning assembly.

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