Locating assembly

Abstract

A locating assembly, which is used for mounting a carrier body to a vehicle seat and comprises: a first locating assembly provided with a first sliding member and a second sliding member; and a second locating assembly provided with a first rail and a second rail. The first rail extends in a first direction and a third direction; the second rail extends in a second direction or a fourth direction; the first rail intersects with the second rail to form an intersection center; and when the first locating assembly is oriented toward the first direction relative to the second locating assembly, the first sliding member is located at the intersection center, and the second sliding member is located on one side of the first sliding member in the first direction. The locating assembly further comprises a misuse prevention mechanism and a snap-fit indication mechanism; the misuse prevention mechanism is movably provided on the first locating assembly or the second locating assembly, and is used for selectively allowing or restricting the movement of a sliding assembly, thereby selectively restricting the angle of rotation of the first locating assembly relative to the second locating assembly. The snap-fit indication mechanism is provided on the first locating assembly or the second locating assembly, and is used for indicating whether the first locating assembly rotates relative to the second locating assembly to be oriented toward the extension direction of the first rail or the second rail.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of infant products, and specifically, to a positioning assembly. BACKGROUND

[0002] A child safety seat, also known as a child restraint system (CRS), is a type of seat specifically designed for a child, which is installed inside a vehicle such as a car to effectively improve the safety of the child placed in the vehicle. In general, the child safety seat includes a base and a carrier body arranged on the base. The carrier body is rotatable relative to the base so that the carrier body can be oriented in different directions, and the positioning assembly is slidable relative to the base so that the positioning assembly can move in different directions relative to the base. However, in the currently common child safety seat, the rotation and the sliding of the carrier body relative to the base are realized by different mechanical structures, which causes the structure of the base and the whole child safety seat to be relatively complex and inconvenient to operate. SUMMARY

[0003] Based on the above, in order to solve the aforementioned problems, it is necessary to provide a carrier and a positioning assembly thereof. The positioning assembly is simple in structure, and has a function of rotating and sliding the carrier body with respect thereto.

[0004] The present disclosure provides a positioning assembly for mounting a carrier body to a vehicle seat. The positioning assembly includes: a first positioning assembly configured to be connected to the carrier body; and a second positioning assembly configured to be connected to the vehicle seat. One of the first positioning assembly and the second positioning assembly is provided with a first rail and a second rail, and the other of the first positioning assembly and the second positioning assembly is provided with a first slider and a second slider. The first slider is configured to slide along one of the first rail or the second rail, and the second slider is configured to slide along the other of the first rail or the second rail to rotate and slide the first positioning assembly relative to the second positioning assembly.

[0005] The present disclosure provides a positioning assembly for mounting a carrier body to a vehicle seat. The positioning assembly includes: a first positioning assembly provided with a first slider and a second slider, and a second positioning assembly provided with a first rail and a second rail. The first rail extends in a first direction or a third direction, the second rail extends in a second direction or a fourth direction, the first rail and the second rail are intersected to form an intersection center, and when the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located on a side of the first slider in the first direction.

[0006] In an embodiment, the second positioning assembly is provided with the first rail and the second rail, and the first positioning assembly is provided with the first slider and the second slider. The first rail extends in a first direction or a third direction, the second rail extends in a second direction or a fourth direction, the first rail and the second rail are intersected to form an intersection center, and when the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located on a side of the first slider in the first direction.

[0007] In an embodiment, the first slider is configured to slide along the second rail, and the second slider is configured to slide along the first rail. When the first positioning assembly is oriented in the second direction or the fourth direction relative to the second positioning assembly, the first positioning assembly is retracted in the second direction or the fourth direction relative to the second positioning assembly.

[0008] In an embodiment, the first rail is divided by the intersection center to form a first rail section and a second rail section, and the second rail is divided by the intersection center to form a third rail section and a fourth rail section. When the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located at the first rail section.

[0009] In an embodiment, the first rail section extends from the intersection center in the first direction, and the second rail section extends from the intersection center in the third direction. The third rail section extends from the intersection center in the second direction, and the fourth rail section extends from the intersection center in the fourth direction. The first direction and the third direction are parallel and opposite to each other, the second direction and the fourth direction are parallel and opposite to each other, and the first direction is intersected with the second direction.

[0010] In an embodiment, the first slider is configured to slide along the second rail, and the second slider is configured to slide along the first rail. When the first positioning assembly is oriented in the second direction relative to the second positioning assembly, the first slider is located at the fourth rail section, and the second slider is located at the intersection center; or when the first positioning assembly is oriented in the fourth direction relative to the second positioning assembly, the first slider is located at the third rail section, and the second slider is located at the intersection center.

[0011] In an embodiment, the second positioning assembly is provided with the first rail and the second rail, and the first positioning assembly is provided with the first slider and the second slider. The first rail extends in a first direction or a third direction, the second rail extends in a second direction or a fourth direction, and the first rail and the second rail are intersected to form an intersection center. When the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located on a side of the first slider in the third direction.

[0012] In an embodiment, the first slider is configured to slide along the second rail, and the second slider is configured to slide along the first rail. When the first positioning assembly is oriented in the second direction or the fourth direction relative to the second positioning assembly, the first positioning assembly is pulled outward in the second direction or the fourth direction relative to the second positioning assembly.

[0013] In an embodiment, the first rail is divided by the intersection center to form a first rail section and a second rail section, and the second rail is divided by the intersection center to form a third rail section and a fourth rail section. When the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located at the second rail section.

[0014] In an embodiment, the first slider is configured to slide along the second rail, and the second slider is configured to slide along the first rail. When the first positioning assembly is oriented in the second direction relative to the second positioning assembly, the first slider is located at the third rail section, and the second slider is located at the intersection center; or when the first positioning assembly is oriented in the fourth direction relative to the second positioning assembly, the first slider is located at the fourth rail section, and the second slider is located at the intersection center.

[0015] In an embodiment, the first positioning assembly has a rotation axis, the first slider is arranged coaxially with the rotation axis, and the second slider is arranged offset from the rotation axis.

[0016] In an embodiment, a projected shape of the first positioning assembly on the second positioning assembly is symmetrical about the rotation axis of the first positioning assembly. A position of the orthographic projection of the first positioning assembly on the second positioning assembly when the first positioning assembly is oriented in the first direction relative to the second positioning assembly is the same as the position of the orthographic projection of the first positioning assembly on the second positioning assembly when the first positioning assembly is oriented in the third direction relative to the second positioning assembly.

[0017] In an embodiment, the first positioning assembly is provided with the first rail and the second rail, the second positioning assembly is provided with a positioning axis, the second positioning assembly is provided with the first slider and the second slider, and the first slider is arranged coaxially with the positioning axis, and the second slider is located on one side of the first slider in the second direction. The first rail and the second rail are intersected to form an intersection center. When the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located at the second rail. The first direction is intersected with the second direction.

[0018] In an embodiment, the second rail is divided by the intersection center to form a third rail section and a fourth rail section. When the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located at the third rail section.

[0019] In an embodiment, the third rail section extends from the intersection center in the second direction, and the fourth rail section extends from the intersection center in the fourth direction. The second direction and the fourth direction are parallel and opposite to each other.

[0020] In an embodiment, the first slider is configured to slide along the first rail and the second slider is configured to slide along the second rail. When the first positioning assembly is oriented in the second direction relative to the second positioning assembly, the first positioning assembly is pulled outward in the second direction relative to the second positioning assembly.

[0021] In an embodiment, the first rail is divided by the intersection center to form a first rail section and a second rail section, the second rail is divided by the intersection center to form a third rail section and a fourth rail section. When the first positioning assembly is oriented in the second direction relative to the second positioning assembly, the first slider is located at the second rail section and the second slider is located at the intersection center.

[0022] In an embodiment, when the first positioning assembly is oriented in the second direction relative to the second positioning assembly, the first rail section extends in the second direction from the intersection center, and the second rail section extends in the fourth direction from the intersection center. The third rail section extends in a third direction from the intersection center, and the fourth rail section extends in the first direction from the intersection center. The first direction and the third direction are parallel and opposite to each other, and the second direction and the fourth direction are parallel and opposite to each other.

[0023] In an embodiment, the first slider is configured to slide along the first rail and the second slider is configured to slide along the second rail. When the first positioning assembly is oriented in the fourth direction relative to the second positioning assembly, the first positioning assembly retracts inward in the fourth direction relative to the second positioning assembly. The fourth direction is parallel to and opposite to the second direction.

[0024] In an embodiment, the first rail is divided by the intersection center to form a first rail section and a second rail section, and the second rail is divided by the intersection center to form a third rail section and a fourth rail section. When the first positioning assembly is oriented in the fourth direction relative to the second positioning assembly, the first slider is located at the first rail section and the second slider is located at the intersection center.

[0025] In an embodiment, when the first positioning assembly is oriented in the fourth direction relative to the second positioning assembly, the first rail section extends from the intersection center in the fourth direction, and the second rail section extends from the intersection center in the second direction. The third rail section extends from the intersection center in the first direction, and the fourth rail section extends from the intersection center in the third direction. The first direction and the third direction are parallel and opposite to each other.

[0026] In an embodiment, the first positioning assembly is provided with the first rail and the second rail, the second positioning assembly is provided with a positioning axis, the second positioning assembly is provided with the first slider and the second slider, the first slider is arranged coaxially with the positioning axis, and the second slider is located on a side of the first slider in a fourth direction. The first rail and the second rail are intersected to form an intersection center. When the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located at the second rail. The first direction is intersected with the fourth direction.

[0027] In an embodiment, the second rail is divided by the intersection center to form a third rail section and a fourth rail section. When the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located at the fourth rail section.

[0028] In an embodiment, the third rail section extends from the intersection center in the second direction, and the fourth rail section extends from the intersection center in the fourth direction. The second direction and the fourth direction are parallel and opposite to each other.

[0029] In an embodiment, the first slider is configured to slide along the first rail and the second slider is configured to slide along the second rail. When the first positioning assembly is oriented in a second direction relative to the second positioning assembly, the first positioning assembly retracts inward in the second direction relative to the second positioning assembly. The second direction is parallel and opposite to the fourth direction.

[0030] In an embodiment, the first rail is divided by the intersection center to form a first rail section and a second rail section, and the second rail is divided by the intersection center to form a third rail section and a fourth rail section. When the first positioning assembly is oriented in the second direction relative to the second positioning assembly, the first slider is located at the first rail section and the second slider is located at the intersection center.

[0031] In an embodiment, when the first positioning assembly is oriented in the second direction relative to the second positioning assembly, the first rail section extends from the intersection center in the second direction, and the second rail section extends from the intersection center in the fourth direction. The third rail section extends in a third direction from the intersection center, and the fourth rail section extends in the first direction from the intersection center. The first direction and the third direction are parallel and opposite to each other.

[0032] In an embodiment, the first slider is configured to slide along the first rail and the second slider is configured to slide along the second rail. When the first positioning assembly is oriented in the fourth direction relative to the second positioning assembly, the first positioning assembly is pulled outward in the fourth direction relative to the second positioning assembly.

[0033] In an embodiment, the first rail is divided by the intersection center to form a first rail section and a second rail section, the second rail is divided by the intersection center to form a third rail section and a fourth rail section. When the first positioning assembly is oriented in the fourth direction relative to the second positioning assembly, the first slider is located at the second rail section, and the second slider is located at the intersection center.

[0034] In an embodiment, when the first positioning assembly is oriented in the fourth direction relative to the second positioning assembly, the first rail section extends from the intersection center in the fourth direction, and the second rail section extends from the intersection center in the second direction. The third rail section extends from the intersection center in the first direction, and the fourth rail section extends from the intersection center in the third direction. The first direction and the third direction are parallel and opposite to each other, and the second direction and the fourth direction are parallel and opposite to each other.

[0035] In an embodiment, a projected shape of the first positioning assembly on the second positioning assembly is symmetrical about the positioning axis. A position of the orthographic projection of the first positioning assembly on the second positioning assembly when the first positioning assembly is oriented in the first direction relative to the second positioning assembly is the same as the position of the orthographic projection of the first positioning assembly on the second positioning assembly when the first positioning assembly is oriented in the third direction relative to the second positioning assembly. The first direction is parallel to and opposite to the third direction.

[0036] In an embodiment, the first rail and the second rail are intersected to form an intersection center, and a distance between the intersection center and an end of the first rail or an end of the second rail is greater than or equal to a distance between the first slider and the second slider.

[0037] In an embodiment, the positioning assembly further includes a first connecting mechanism. The first connecting mechanism includes at least two sets of engaging hooks, and each set of engaging hooks is pivotally connected to the first positioning assembly and has a locked position and an unlocked position. When at least two of the sets of engaging hooks are at the locked position, each set of engaging hooks is used to engage with and lock the carrier body.

[0038] In an embodiment, the first connecting mechanism includes three sets of engaging hooks, the three sets of engaging hooks are arranged at intervals in a fifth direction sequentially, and at least two adjacent sets of engaging hooks are used to engage with and lock the carrier body, so that the carrier body has a first use state and a second use state relative to the positioning assembly. The fifth direction is a front-rear direction of the carrier body.

[0039] In an embodiment, when in the first use state, the carrier body is locked to the front two sets of engaging hooks arranged close to a front end of the carrier body, and the front end of the carrier body protrudes outward in the orientation of the carrier body relative to the first positioning assembly. When in the second use state, the carrier body is locked to the rear two sets of engaging hooks arranged close to a rear end of the carrier body, and the front end of the carrier body retracts inward in the orientation of the carrier body relative to the first positioning assembly.

[0040] The present disclosure also provides a positioning assembly for mounting a carrier body to a vehicle seat. The positioning assembly includes: a first positioning assembly configured to be connected to the carrier body; and a second positioning assembly configured to be connected to the vehicle seat. One of the first positioning assembly and the second positioning assembly is provided with a first rail and a second rail, and the other of the first positioning assembly and the second positioning assembly is provided with a slide assembly. The first rail is intersected with the second rail. The slide assembly can rotate in the first rail and slide in the second rail. The first positioning assembly is rotatable relative to the second positioning assembly by rotation of the slide assembly in the first rail and slidable relative to the second positioning assembly by sliding the slide assembly in the second rail.

[0041] In an embodiment, the first positioning assembly is provided with the slide assembly, the second positioning assembly is provided with the first rail and the second rail, the first rail communicates with the second rail at an intersection therebetween, and the slide assembly is capable of sliding continuously between the first rail and the second rail.

[0042] In an embodiment, the first rail includes a first channel having a circular structure, and the second rail includes a second channel having a strip structure. The first channel communicates with the second channel at the intersection. The second rail extends in or away from the second direction.

[0043] In an embodiment, the slide assembly includes a sliding block, and the sliding block is connected to the first positioning assembly and is rotatable within the first channel and slidable within the second channel.

[0044] In an embodiment, a length L1 of the sliding block and a width W1 of the sliding block are both less than or equal to a diameter D of the first channel to allow the sliding block to rotate within the first channel; and / or the length L1 of the sliding block is greater than a width W2 of the second channel, and the width W1 of the sliding block is less than or equal to the width W2 of the second channel to allow the sliding block to slide within the second channel and restrict the sliding block from rotating within the second channel.

[0045] In an embodiment, the second channel is divided by the first channel to form a third rail section and a fourth rail section, the third rail section and the fourth rail section communicate with the first channel respectively, the third rail section extends from the first channel in the second direction, and the fourth rail section extends from the first channel in a direction opposite to the second direction. When the first positioning assembly is rotated relative to the second positioning assembly to be oriented in the second direction or in the direction opposite to the second direction, a length direction of the sliding block is parallel to the second direction.

[0046] In an embodiment, the second channel is divided by the first channel to form a third rail section and a fourth rail section, the third rail section and the fourth rail section communicate with the first channel respectively, the third rail section extends from the first channel in the second direction, and the fourth rail section extends from the first channel in a direction opposite to the second direction. When the first positioning assembly is rotated relative to the second positioning assembly to be oriented in the second direction or in the direction opposite to the second direction, the first positioning assembly can protrude outward or retract relative to the second positioning assembly.

[0047] In an embodiment, the second positioning assembly includes a second housing having a second mounting cavity, the first rail further includes a first slide groove, the second rail further includes a second slide groove, and the first channel and the second channel are both arranged on a side of the second housing facing the second mounting cavity. The first slide groove is arranged on the second housing and located on an inner side of the first channel, and the second slide groove is arranged on the second housing and located on an inner side of the second channel. The second slide groove communicates with the first slide groove and extends in an extending direction of the second channel. The slide assembly further includes a slide rod connected to the first positioning assembly and connected to the sliding block through the first or second slide groove.

[0048] In an embodiment, the first rail includes a first channel having a ring structure, and the second rail includes a second channel having a strip structure. The second channel passes through the first channel and communicates with the channel at the intersection. The slide assembly includes two sliding blocks, the two sliding blocks are rotatable along the first channel to rotate the first positioning assembly relative to the second positioning assembly, and the two sliding blocks are synchronously slidable within the second channel to slide the first positioning assembly relative to the second positioning assembly.

[0049] In an embodiment, a distance H1 between sidewalls of the two sliding blocks facing the center of the first channel is greater than or equal to an inner ring diameter D1 of the first channel to allow the two sliding blocks to move synchronously within the first channel; and / or a distance H1 between the sidewalls of the two sliding blocks facing the center of the first channel is greater than a width W2 of the second channel to allow the sliding blocks to slide within the second channel and restrict the sliding blocks from rotating within the second channel.

[0050] In an embodiment, the second channel is divided by the first channel to form a third rail section, a fifth rail section, and a fourth rail section arranged sequentially. The first channel is divided by the second channel to form a first arc section and a second arc section. The first end of the first arc section and the first end of the second arc section both communicates with the first end of the fifth rail section and the third rail section, and the second end of the first arc section and the second end of the second arc section both communicate with the second end of the fifth rail section and the fourth rail section.

[0051] In an embodiment, the second positioning assembly includes a second housing having a second mounting cavity, the first rail further includes a first slide groove, the second rail further includes a second slide groove, and the first channel and the second channel are both arranged on a side of the second housing facing the second mounting cavity. The first slide groove is arranged on the second housing and located within the first channel, and the second slide groove is arranged on the second housing and located within the second channel. The second slide groove communicates with the first slide groove and extends in an extending direction of the second channel. The slide assembly further includes two slide rods. The two slide rods are connected to the first positioning assembly, and connected to the two sliding blocks through the first slide groove or the second slide groove respectively.

[0052] In an embodiment, the first rail includes a first slide groove having a ring structure, and the second rail includes a second slide groove having a strip structure. The first slide groove communicates with the second slide groove at the intersection. The slide assembly includes two sliding blocks and two slide rods. The two slide rods are connected to the first positioning assembly and arranged opposite to each other. The two slide rods are respectively connected to the two sliding blocks through the first slide groove or the second slide groove. The two slide rods can slide in the first slide groove at the same time, so that the first positioning assembly is rotated relative to the second positioning assembly, and the two sliding blocks can slide in the second slide groove at the same time, so that the first positioning assembly slides relative to the second positioning assembly.

[0053] The present disclosure also provides another positioning assembly for mounting a carrier body to a vehicle seat. The positioning assembly includes: a first positioning assembly configured to be connected to the carrier body; a second positioning assembly configured to be connected to the vehicle seat, one of the first positioning assembly and the second positioning assembly being provided with a first rail and a second rail, and the other of the first positioning assembly and the second positioning assembly being provided with a slide assembly configured to slide along the first rail and the second rail to displace the first positioning assembly relative to the second positioning assembly while rotating relative to the second positioning assembly; and an anti-misuse mechanism movably arranged on the first positioning assembly or the second positioning assembly for selectively allowing or restricting movement of the slide assembly, thereby selectively restricting an angle of rotation of the first positioning assembly relative to the second positioning assembly.

[0054] In an embodiment, the slide assembly includes a first slider and a second slider. The first slider is configured to slide along one of the first rail and the second rail, and the second slider is configured to slide along the other of the first rail and the second rail.

[0055] The present disclosure also provides another positioning assembly for mounting a carrier body to a vehicle seat. The positioning assembly includes: a first positioning assembly configured to be connected to the carrier body; a second positioning assembly configured to be connected to the vehicle seat, one of the first positioning assembly and the second positioning assembly being provided with a first rail and a second rail, the other of the first positioning assembly and the second positioning assembly being provided with a first slider and a second slider, the first slider being configured to slide along one of the first rail and the second rail, and the second slider being configured to slide along the other of the first rail and the second rail to displace the first positioning assembly relative to the second positioning assembly while rotating relative to the second positioning assembly; and an anti-misuse mechanism movably arranged on the first positioning assembly or the second positioning assembly for selectively allowing or restricting movement of the first slider or the second slider, thereby selectively restricting an angle of rotation of the first positioning assembly relative to the second positioning assembly.

[0056] In an embodiment, the anti-misuse mechanism includes a blocking member movably arranged on the first positioning assembly or the second positioning assembly to be capable of protruding into or retracting from the first rail or the second rail to selectively allow or restrict movement of the first slider or the second slider.

[0057] In an embodiment, the first rail and the second rail form an intersection center at an intersection therebetween. The first slider is configured to slide along the second rail, and the second slider is configured to slide along the first rail.

[0058] In an embodiment, a distance between the intersection center and an end of the first rail or an end of the second rail is greater than or equal to a distance between the first slider and the second slider.

[0059] In an embodiment, the first rail extends in a first direction or a third direction, and the second rail extends in a second direction or a fourth direction. The first direction is parallel and opposite to the third direction, the second direction is parallel and opposite to the fourth direction, and the first direction is intersected with the second direction.

[0060] In an embodiment, when the first slider is located at the intersection center and the second slider is located at the first rail, the first positioning assembly is rotated relative to the second positioning assembly to be oriented in an extension direction of the first rail; and / or when the second slider is located at the intersection center and the first slider is located at the second rail, the first positioning assembly is rotated relative to the second positioning assembly to be oriented in the extension direction of the second rail.

[0061] In an embodiment, the blocking member is movably arranged in a path of movement of the first slider within the second rail to restrict the first positioning assembly from rotating relative to the second positioning assembly to be oriented in the second direction or the fourth direction.

[0062] In an embodiment, the blocking member is movably arranged in a path of movement of the second slider within the first rail to restrict the first positioning assembly from rotating relative to the second positioning assembly to be oriented in the first direction or the third direction.

[0063] In an embodiment, the blocking member has a first position and a second position. When the blocking member is at the first position, the blocking member at least partially protrudes into the first rail to block movement of the second slider within the first rail, thereby restricting the first positioning assembly from rotating relative to the second positioning assembly to be oriented in the first direction or the third direction. When the blocking member is at the second position, the blocking member exits the first rail.

[0064] In an embodiment, the first rail is divided by the intersection center to form a first rail section and a second rail section, the first rail section extends from the intersection center in the first direction, and the second rail section extends from the intersection center in the third direction. When the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located at the second rail section. The blocking member is movably arranged in a path of movement of the second slider within the second rail section.

[0065] In an embodiment, when the second slider moves from the intersection center toward the second rail section and the blocking member is at the first position, the blocking member at least partially protrudes into the second rail section to restrict the movement of the second slider within the second rail section, thereby restricting the first positioning assembly from rotating relative to the second positioning assembly to be oriented in the first direction.

[0066] In an embodiment, the first positioning assembly is provided with the first slider and the second slider, and the second positioning assembly is provided with the first rail and the second rail.

[0067] In an embodiment, the anti-misuse mechanism further includes an unlock assembly arranged on the first positioning assembly or the second positioning assembly and is drivingly connected to the blocking member for driving the blocking member to exit the first rail or the second rail, thereby allowing movement of the first slider or the second slider.

[0068] In an embodiment, the anti-misuse mechanism further includes an unlock assembly arranged on the first positioning assembly or the second positioning assembly and is drivingly connected to the blocking member for driving the blocking member to exit the first rail or the second rail, thereby allowing movement of the slide assembly.

[0069] In an embodiment, the unlock assembly includes an operating member and a traction member, the operating member is movably arranged on the first positioning assembly or the second positioning assembly and has a locked position and an unlocked position, and the traction member is connected between the operating member and the blocking member. When the operating member is switched from the locked position to the unlocked position, the operating member drives the blocking member to exit the first rail or the second rail through the traction member.

[0070] In an embodiment, the anti-misuse mechanism further includes a first reset member configured to apply an elastic restoring force to the blocking member, so that the blocking member can protrude into the first rail or the second rail to restrict movement of the first slider or the second slider.

[0071] In an embodiment, the anti-misuse mechanism further includes a fixing base arranged on the first positioning assembly or the second positioning assembly, and the fixing base has a cavity and a first opening communicating with the cavity. The first opening faces the first rail or the second rail. The blocking member is movably arranged in the cavity, and the blocking member can at least partially pass through the first opening and protrude into the first rail or the second rail.

[0072] In an embodiment, the fixing base is further provided with an operation hole communicating with the cavity, the operation hole is arranged opposite to the first opening, and the traction member is connected to the blocking member through the operation hole.

[0073] In an embodiment, the anti-misuse mechanism further includes a state locking assembly arranged on the second positioning assembly and configured to lock the operating member at the locked position or the unlocked position.

[0074] In an embodiment, the operating member is provided with a limiting portion. The state locking assembly includes a locking member movably arranged on the first positioning assembly or the second positioning assembly and has a third position and a fourth position. When the locking member is at the third position, the locking member abuts against the limiting portion to be able to restrict switching of the operating member between the locked position and the unlocked position. When the locking member is at the fourth position, the locking member is separated from the limiting portion.

[0075] In an embodiment, the state locking assembly further includes the second reset member configured to apply an elastic restoring force to the locking member so that the locking member is kept at the third position.

[0076] In an embodiment, the positioning assembly further including an engagement indication mechanism arranged on the first positioning assembly or the second positioning assembly and configured to indicate whether the first positioning assembly is rotated relative to the second positioning assembly to be oriented in an extension direction of the first rail or the second rail.

[0077] The present disclosure also provides another positioning assembly for mounting a carrier body to a vehicle seat. The positioning assembly includes: a first positioning assembly configured to be connected to the carrier body; a second positioning assembly configured to be connected to the vehicle seat, one of the first positioning assembly and the second positioning assembly being provided with a first rail and a second rail, the other of the first positioning assembly and the second positioning assembly being provided with a first slider and a second slider, the first slider being configured to slide along one of the first rail and the second rail, and the second slider being configured to slide along the other of the first rail and the second rail to displace the first positioning assembly relative to the second positioning assembly while rotating relative to the second positioning assembly; and an engagement indication mechanism arranged on the first positioning assembly or the second positioning assembly and configured to indicate whether the first positioning assembly is rotated relative to the second positioning assembly to be oriented in an extension direction of the first rail or the second rail.

[0078] In an embodiment, the engagement indication mechanism includes: a movable member having an indication area movably arranged on the first positioning assembly or the second positioning assembly so that the indication area has a first indication position and a second indication position; and a driving member rotatably arranged on the first positioning assembly or the second positioning assembly and drivingly connected to the movable member. The driving member is configured to drivingly cooperate with the first slider or the second slider to drive the movable member to move to change a position of the indication area.

[0079] In an embodiment, the driving member has a first abutting portion and a pushing portion, the pushing portion is pivotably connected to the movable member, and the first abutting portion is configured to drivingly cooperate with the first slider or the second slider so that the driving member is pivoted to drive the movable member to move.

[0080] In an embodiment, the first slider and / or the second slider is provided with a second abutting portion. The second abutting portion is formed with a pushing slope adapted to drivingly cooperate with the first abutting portion to drive the driving member to rotate.

[0081] In an embodiment, the first slider is configured to slide along the second rail, and the second slider is configured to slide along the first rail. The first rail and the second rail form an intersection center at an intersection therebetween.

[0082] In an embodiment, when the first slider is located at the intersection center and the second slider is located at the first rail, the first positioning assembly is rotated relative to the second positioning assembly to be oriented in an extension direction of the first rail. The first rail extends in the first direction or the third direction. When the second slider is located at the intersection center and the first slider is located at the second rail, the first positioning assembly is rotated relative to the second positioning assembly to be oriented in an extension direction of the second rail. The second rail extends in the second direction or the fourth direction. The first direction is parallel and opposite to the third direction, and the second direction is parallel and opposite to the fourth direction.

[0083] In an embodiment, the first positioning assembly is provided with the first slider and the second slider, and the second positioning assembly is provided with the first rail and the second rail. The second positioning assembly is provided with a second mounting cavity, and the second mounting cavity communicates with the first rail and the second rail. The driving member is rotatably arranged in the second mounting cavity. The first slider or the second slider is provided with a second abutting portion, and at least a part of the second abutting portion extends through the second rail or the first rail into the second mounting cavity to be able to drivingly cooperate with the driving member.

[0084] In an embodiment, the movable member is movably arranged within the second mounting cavity, and the driving member is located below and opposite the intersection center. The first slider is provided with the second abutting portion, and when the first positioning assembly is rotated relative to the second positioning assembly to be oriented in the first direction or the third direction, the second abutting portion of the first slider abuts against the driving member to rotate the driving member; or the second slider is provided with the second abutting portion, and when the first positioning assembly is rotated relative to the second positioning assembly to be oriented in the second direction or the fourth direction, the second abutting portion of the second slider abuts against the driving member to rotate the driving member.

[0085] In an embodiment, the first positioning assembly is provided with the first slider and the second slider, the second positioning assembly is provided with the first rail and the second rail, and the first rail and the second rail form an intersection center at an intersection therebetween. The movable member is movably arranged within a second mounting cavity of the positioning assembly, and the driving member is located below and opposite the intersection center. The first slider is provided with the second abutting portion, when the first slider is located at the intersection center, the second abutting portion abuts against the driving member to rotate the driving member; or the second slider is provided with the second abutting portion, when the second slider is located at the intersection center, the second abutting portion abuts against the driving member to rotate the driving member.

[0086] In an embodiment, the indication area is provided with an indication color block. The first positioning assembly or the second positioning assembly is provided with an indication window, and the indication area is switchable between the first indication position and the second indication position so that the indication color block can selectively face the indication window.

[0087] In an embodiment, the engagement indication mechanism further includes a third reset member. The third reset member abuts against one of the movable member or the driving member, and is configured to drive the movable member to reset.

[0088] The present disclosure also provides a carrier including a carrier body and the positioning assembly as described above. The first positioning assembly is connected to the carrier body, and the second positioning assembly is connected to a vehicle seat.

[0089] The present disclosure further provides a carrier including: a carrier body provided with at least two engaging members arranged at intervals in a front-rear direction of the carrier body; a positioning assembly including a first positioning assembly and a second positioning assembly, the first positioning assembly being configured to be connected to the carrier body, the second positioning assembly being configured for connecting a vehicle seat, and the first positioning assembly being rotatable relative to the second positioning assembly; and a first connecting mechanism including at least three sets of engaging hooks, each set of engaging hooks being pivotally connected to the first positioning assembly sequentially in the front-rear direction of the carrier body, so that each set of engaging hooks having a locked position and an unlocked position. When at least two of the at least three sets of engaging hooks are at the locked position, each set of engaging hooks is configured to engage with and lock the carrier body. The at least two engaging members can be selectively locked to any at least two adjacent sets of engaging hooks so that the carrier body has a first use state and a second use state relative to the positioning assembly. When in the first use state, the carrier body protrudes outward relative to the first positioning assembly in the orientation of the carrier body. When in the second use state, the carrier body retracts inward relative to the first positioning assembly in the orientation of the carrier body.

[0090] In an embodiment, the carrier body has two engaging members, and the first connecting mechanism includes three sets of engaging hooks. When in the first use state, the two engaging members are respectively locked to the front two sets of engaging hooks arranged close to a front end of the first positioning assembly, and the front end of the carrier body protrudes outward in the orientation of the carrier body relative to the first positioning assembly. When in the second use state, the two engaging members are respectively locked to the rear two sets of engaging hooks arranged close to a rear end of the first positioning assembly, and the front end of the carrier body retracts inward in the orientation of the carrier body relative to the first positioning assembly.

[0091] In an embodiment, the carrier body has three engaging members, and the first connecting mechanism includes three sets of engaging hooks. When in the first use state, the front two adjacent engaging members or the rear two adjacent engaging members are respectively locked to the front two sets of engaging hooks arranged close to the front end of the first positioning assembly, and the front end of the carrier body protrudes outward in the orientation of the carrier body relative to the first positioning assembly. When in the second use state, the front two adjacent engaging members are respectively locked to the rear two sets of engaging hooks arranged close to the rear end of the first positioning assembly, and the front end of the carrier body retracts inward in the orientation of the carrier body relative to the first positioning assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] The accompanying drawings which form part of the present disclosure are used to provide further understanding of the present disclosure, and schematic embodiments of the present disclosure and the description thereof are used to explain the present disclosure and do not constitute improper definition of the present disclosure.

[0093] In order to describe the technical solutions in the embodiments of the present disclosure more clearly, the drawings required for the description of the embodiments will be described briefly. Apparently, the drawings in the following description are merely for some embodiments of the present disclosure, and other drawings can be derived from these drawings by persons skilled in the art without any creative effort.

[0094] Furthermore, the drawings are not drawn to scale of 1:1, and the relative sizes of various elements are drawn in the drawings by way of example only and not necessarily to true scale. In the drawings: FIG. 1 is a perspective view of a positioning assembly according to an embodiment of the present disclosure with a first positioning assembly being oriented in a first direction; FIG. 2 is a perspective view of a positioning assembly according to the embodiment of the present disclosure with the first positioning assembly being oriented in a third direction; FIG. 3 is a perspective view of a first positioning assembly according to a first embodiment of a first aspect of the present disclosure; FIG. 4 is a perspective view of a second positioning assembly according to the first embodiment of the first aspect of the present disclosure; FIG. 5 is a top view of a positioning assembly according to the first embodiment of the first aspect of the present disclosure with the first positioning assembly being oriented in the first direction or the third direction; FIG. 6 is a top view of a positioning assembly according to the first embodiment of the first aspect of the present disclosure with the first positioning assembly being oriented in a second direction; FIG. 7 is a top view of a positioning assembly according to the first embodiment of the first aspect of the present disclosure with the first positioning assembly being oriented in a fourth direction; FIG. 8 is a bottom view of the positioning assembly according to the first embodiment of the first aspect of the present disclosure with a second bottom cover of the second positioning assembly being omitted, and the first positioning assembly being oriented in the first direction; FIG. 9 is a bottom view of the positioning assembly according to the first embodiment of the first aspect of the present disclosure with the second bottom cover of the second positioning assembly being omitted, and the first positioning assembly being oriented in the second direction; FIG. 10 is a bottom view of the positioning assembly according to the first embodiment of the first aspect of the present disclosure with the second bottom cover of the second positioning assembly being omitted, and the first positioning assembly being oriented in the third direction; FIG. 11 is a bottom view of the positioning assembly according to the first embodiment of the first aspect of the present disclosure with the second bottom cover of the second positioning assembly being omitted, and the first positioning assembly being oriented in the fourth direction; FIG. 12 is a perspective view of a positioning assembly according to the first embodiment of the first aspect of the present disclosure with the first positioning assembly being oriented in the second direction; FIG. 13 is a perspective view of a positioning assembly according to the first embodiment of the first aspect of the present disclosure with the first positioning assembly being oriented in the fourth direction; FIG. 14 is a perspective view of the positioning assembly shown in FIG. 13 with a carrier body connected thereto; FIG. 15 is a perspective view of a first positioning assembly according to a second embodiment of the first aspect of the present disclosure; FIG. 16 is a perspective view of a positioning assembly according to the second embodiment of the first aspect of the present disclosure with the first positioning assembly being oriented in a second direction; FIG. 17 is a perspective view of the positioning assembly shown in FIG. 16 with a carrier body connected thereto; FIG. 18 is a perspective view of the positioning assembly according to the second embodiment of the first aspect of the present disclosure with the first positioning assembly being oriented in a fourth direction; FIG. 19 is a perspective view of the positioning assembly shown in FIG. 18 with a carrier body connected thereto; FIG. 20 is a perspective view of a first positioning assembly according to a third embodiment of the first aspect of the present disclosure; FIG. 21 is a top view of the positioning assembly according to the third embodiment of the first aspect of the present disclosure with a first positioning assembly being oriented in a second direction; FIG. 22 is a top view of a positioning assembly according to the third embodiment of the first aspect of the present disclosure with the first positioning assembly being oriented in a fourth direction; FIG. 23 is a perspective view of a first positioning assembly according to a fourth embodiment of the first aspect of the present disclosure; FIG. 24 is a perspective view of a first positioning assembly according to a fifth embodiment of the first aspect of the present disclosure; FIG. 25 shows a perspective view of a second positioning assembly according to the fifth embodiment of the first aspect of the present disclosure; FIG. 26 is a top view of a positioning assembly according to the fifth embodiment of the first aspect of the present disclosure with a first top cover being omitted, and the first positioning assembly being oriented in a first direction; FIG. 27 is a top view of the positioning assembly according to the fifth embodiment of the first aspect of the present disclosure with the first top cover being omitted, and the first positioning assembly being oriented in a second direction; FIG. 28 is a top view of the positioning assembly according to the fifth embodiment of the first aspect of the present disclosure with the first top cover being omitted, and the first positioning assembly being oriented in a third direction; FIG. 29 is a top view of the positioning assembly according to the fifth embodiment of the first aspect of the present disclosure with the first top cover being omitted, and the first positioning assembly being oriented in a fourth direction; FIG. 30 is a perspective view of a second positioning assembly according to a sixth embodiment of the first aspect of the present disclosure; FIG. 31 is a top view of a positioning assembly according to the sixth embodiment of the first aspect of the present disclosure with a first top cover being omitted, and a first positioning assembly being oriented in a second direction; FIG. 32 is a top view of the positioning assembly according to the sixth embodiment of the first aspect of the present disclosure with the first top cover being omitted, and the first positioning assembly being oriented in a fourth direction; FIG. 33 is a perspective view of a second positioning assembly according to a seventh embodiment of the first aspect of the present disclosure; FIG. 34 is a top view of a positioning assembly according to the seventh embodiment of the first aspect of the present disclosure with a first top cover being omitted, and a first positioning assembly being oriented in a second direction; FIG. 35 is a top view of the positioning assembly according to the seventh embodiment of the first aspect of the present disclosure with the first top cover being omitted, and the first positioning assembly being oriented in a fourth direction; FIG. 36 is a perspective view of a second positioning assembly according to an eighth embodiment of the first aspect of the present disclosure; FIG. 37 is a top view of a positioning assembly according to the eighth embodiment of the first aspect of the present disclosure with a first top cover being omitted, and a first positioning assembly being oriented in a second direction; FIG. 38 is a top view of the positioning assembly according to the eighth embodiment of the first aspect of the present disclosure with the first top cover being omitted, and the first positioning assembly being oriented in a fourth direction; FIG. 39 is a perspective view of a first positioning assembly according to a first embodiment of a second aspect of the present disclosure; FIG. 40 shows a top view of a second positioning assembly according to the first embodiment of the second aspect of the present disclosure; FIG. 41 is a perspective view of a positioning assembly according to the first embodiment of the second aspect of the present disclosure with a carrier body connected to the first positioning assembly and oriented in a second direction, and a slide assembly located at a first rail; FIG. 42 is a perspective view of the positioning assembly according to the first embodiment of the second aspect of the present disclosure with the carrier body connected to the first positioning assembly and oriented in the second direction, and the slide assembly located at a second rail; FIG. 43 is a perspective view of a second top cover at a second positioning assembly according to a second embodiment of the second aspect of the present disclosure; FIG. 44 is a bottom view of a positioning assembly according to the second embodiment of the second aspect of the present disclosure with a second bottom cover of the second positioning assembly being omitted, and a first positioning assembly being oriented in a second direction or a fourth direction; FIG. 45 is a top view of a second positioning assembly according to a third embodiment of the second aspect of the present disclosure; FIG. 46 is a bottom view of a positioning assembly according to a fourth embodiment of the second aspect of the present disclosure with a second bottom cover of a second positioning assembly being omitted, and a first positioning assembly being oriented in a second direction or a fourth direction; FIG. 47 is a bottom view of a positioning assembly according to a fifth embodiment of the second aspect of the present disclosure with a second bottom cover of a second positioning assembly being omitted, and the first positioning assembly being oriented in a second direction or a fourth direction; FIG. 48 is a perspective view of a carrier body according to an embodiment of a third aspect of the present disclosure; FIG. 49 is a perspective view of a positioning assembly according to an embodiment of the third aspect of the present disclosure with a first positioning assembly being provided with three sets of engaging hooks; FIG. 50 is a side view of the positioning assembly shown in FIG. 49 with a carrier body oriented in a second direction and in a second use state; FIG. 51 is a cross-sectional view along line U1-U1 (i.e., along a direction parallel to the paper) in FIG. 50; FIG. 52 is a side view of the positioning assembly shown in FIG. 49 with the carrier body being oriented in a third direction and in the second use state; FIG. 53 is a cross-sectional view taken along line U2-U2 (i.e., along a direction parallel to the paper) in FIG. 52, with the carrier body being in the second use state; FIG. 54 is a cross-sectional view taken along line U2-U2 (i.e., along a direction parallel to the paper) in FIG. 52, with the carrier body being in a first use state; FIG. 55 is a perspective view of a carrier according to an embodiment of a fourth aspect of the present disclosure with a carrier body being oriented in the first direction; FIG. 56 is a perspective view of the carrier according to an embodiment of the fourth aspect of the present disclosure with the carrier body being oriented in a direction away from the first direction; FIG. 57 is another perspective view of the carrier shown in FIG. 56; FIG. 58 is a perspective view of the positioning assembly in the carrier shown in FIG. 55 with an operating member at a locked position; FIG. 59 is a perspective view of the positioning assembly in the carrier shown in FIG. 55 with the operating member at an unlocked position; FIG. 60 is a top view of the positioning assembly shown in FIG. 59; FIG. 61 is a perspective view of a second positioning assembly of the positioning assembly shown in FIG. 58; FIG. 62 is a top view of the second positioning assembly of the positioning assembly shown in FIG. 59; FIG. 63 is a perspective view of a first positioning assembly of the positioning assembly shown in FIG. 59; FIG. 64 is a perspective view of a second top cover in the second positioning assembly shown in FIG. 61; FIG. 65 is a cross-sectional view taken along line U3-U3 in FIG. 61 with a blocking member at a second position; FIG. 66 is a cross-sectional view taken along line U3-U3 in FIG. 61 with the blocking member at a first position; FIG. 67 is a perspective view of the second top cover in the second positioning assembly shown in FIG. 61 with an anti-misuse mechanism mounted on the second top cover; FIG. 68 is an enlarged view of an area identified by circle A shown in FIG. 65; FIG. 69 is an enlarged view of an area identified by circle B shown in FIG. 67; FIG. 70 is a perspective view of the second top cover in the second positioning assembly shown in FIG. 61 with the anti-misuse mechanism being detachably connected to the second top cover; FIG. 71 is a perspective view of the second bottom cover in the second positioning assembly shown in FIG. 61 with a driving member in a free state; FIG. 72 is an enlarged view of an area identified by circle C shown in FIG. 71; FIG. 73 is an enlarged view of an area identified by circle D shown in FIG. 65; FIG. 74 is a perspective view of the second bottom cover in the second positioning assembly shown in FIG. 61 with the driving member in a pressed state; and FIG. 75 is a perspective view of the second bottom cover in the second positioning assembly shown in FIG. 61 with an exploded engagement indication mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0095] In order to make the aforementioned objects, features and advantages of the present disclosure more apparent, the embodiments of the present disclosure are described below in detail with reference to the accompanying drawings. In the following description, numerous specific details are set forth, so as to provide a thorough understanding of the present disclosure. However, the present disclosure may be implemented in many ways different from those described herein, persons skilled in the art may make similar modifications without departing from the essence of the present disclosure, and therefore, the present disclosure is not limited to the examples disclosed below.

[0096] A first aspect of the present disclosure provides a carrier A1000 which includes a carrier body A200 and a positioning assembly A100 provided in some embodiments of the present disclosure. The carrier body A200 may be fixedly mounted to the positioning assembly A100. Of course, the carrier body A200 may also be mounted to the positioning assembly A100 in a detachable manner. The carrier body A200 may be mounted to a vehicle seat (not shown) by the positioning assembly A100. The carrier body A200 and the positioning assembly A100 will be described together along with the description of the carrier A1000.

[0097] In an embodiment, the type of the carrier body A200 may be, for example, a child safety seat (see FIG. 14), an infant safety basket (see FIG. 41), a sleeping box, or the like. The user may select the type of the carrier body A200 according to the age, height, or weight of the child. Specifically, a bottom of the carrier body A200 is provided with an engaging member A210 (see FIG. 48). As shown in FIG. 1 and FIG. 2, the positioning assembly A100 may include a first positioning assembly A110 and a second positioning assembly A120. The first positioning assembly A110 is configured to be connected to the carrier body A200, and the second positioning assembly A120 is configured to be connected to the vehicle seat. Specifically, the first positioning assembly A110 is provided with a first connecting mechanism A150 configured to be detachably connected to the engaging member A210 of the carrier body A200. Specifically, the first connecting mechanism A150 includes an engaging hook A151 pivotally connected to the first positioning assembly A110 and having a locked position and an unlocked position. When the engaging hook A151 is at the locked position, the engaging hook A151 is configured to engage with and lock the engaging member A210. When the engaging hook A151 is at the unlocked position, the engaging member A210 can be disengaged from the engaging hook A151 to separate the carrier body A200 from the first positioning assembly A110. More specifically, the specific structure of the first connecting mechanism A150 may be described in detail later. The second positioning assembly A120 is provided with a seat connecting mechanism A161 (for example, an ISOFIX connector) and a support leg A162. The seat connecting mechanism A161 is mainly configured to fasten the second positioning assembly A120 to the vehicle seat, and the support leg A162 is configured to abut against a floor inside the vehicle to improve reliability and stability of the installation of the positioning assembly A100.

[0098] In the positioning assembly A100 provided in the above-described carrier A1000, one of the first positioning assembly A110 and the second positioning assembly A120 is provided with a first rail A131 and a second rail A132, and the other of the first positioning assembly A110 and the second positioning assembly A120 is provided with a first slider A141 and a second slider A142. Specifically, the first rail A131 and the second rail A132 are intersected to form an intersection center A133. The first rail A131 is divided by the intersection center A133 to form a first rail section A1311 and a second rail section A1312. And the second rail A132 is divided by the intersection center A133 to form a third rail section A1321 and a fourth rail section A1322. When the first slider A141 is located at the intersection center A133, the second slider A142 may be located at any one of the first rail section A1311, the second rail section A1312, the third rail section A1321, and the fourth rail section A1322. The first positioning assembly A110 is rotatable and slidable relative to the second positioning assembly A120 through the sliding of the first slider A141 along one of the first rail A131 or the second rail A132, and the sliding of the second slider A142 along the other of the first rail A131 or the second rail A132.

[0099] In order to facilitate the following explanation of the operation principle and process of the rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120, the intersection center A133 is regarded as a point M or N', an end of the first rail section A1311 away from the intersection center A133 is regarded as a point N'', an end of the second rail section A1312 away from the intersection center A133 is regarded as a point N, an end of the third rail section A1321 away from the intersection center A133 is regarded as a point M', and an end of the fourth rail section A1322 away from the intersection center A133 is regarded as a point M''.

[0100] Referring to FIG. 3 and FIG. 4, in the positioning assembly A100 provided in a first embodiment, the second positioning assembly A120 is provided with a first rail A131 and a second rail A132 that are arranged crosswise (see FIG. 4). Specifically, the first rail A131 extends in a first direction F1 or a third direction F3, and the second rail A132 extends in a second direction F2 or a fourth direction F4. More specifically, the first rail section A1311 extends in the first direction F1 from the intersection center A133, and the second rail section A1312 extends in the third direction F3 from the intersection center A133. The third rail section A1321 extends in the second direction F2 from the intersection center A133, and the fourth rail section A1322 extends in the fourth direction F4 from the intersection center A133. The first direction F1 is parallel and opposite to the third direction F3, the second direction F2 is parallel and opposite to the fourth direction F4, and the first direction F1 is intersected with the second direction F2. More specifically, the first direction F1 is perpendicular to the second direction F2. The first positioning assembly A110 is provided with a first slider A141 and a second slider A142 (see FIG. 3). The first positioning assembly A110 has a rotation axis, the first slider A141 is arranged coaxially with the rotation axis, and the second slider A142 is arranged offset from the rotation axis (see FIG. 3, FIG. 15, FIG. 20, and FIG. 23). Specifically, in this embodiment, in the case where the first positioning assembly A110 has a substantially disc-shaped structure, the rotation axis may be regarded as the center of the first positioning assembly A110. Of course, in other embodiments, the first positioning assembly A110 may be in other symmetrical shapes (e.g., oval, rectangle, etc.), and the rotation axis may be the geometric center position or offset from geometric center position of the first positioning assembly A110. Alternatively, the first positioning assembly A110 may be in an asymmetrical shape, and the rotation axis may be set according to actual needs.

[0101] It should be noted that, with reference to the normal traveling of the vehicle, the first direction F1 refers to the front of the normal traveling of the vehicle when the positioning assembly A100 is mounted on the vehicle seat, that is, the direction toward a head of the vehicle. The third direction F3 may be regarded as the rear of the normal traveling of the vehicle, that is, the direction toward the rear of the vehicle. The second direction F2 may be regarded as the left direction of the normal traveling of the vehicle, that is, the direction toward the left door of the vehicle, and the fourth direction F4 may be regarded as the right direction of the normal traveling of the vehicle, that is, the direction toward the right door of the vehicle. In this embodiment, the first positioning assembly A110 has a front end, a rear end, a left end, and a right end. In order to clearly understand the various ends of the first positioning assembly A110, taking the carrier body A200 mounted to the first positioning assembly A110 as an example, the front-rear direction of the carrier body A200 is parallel to the frontrear direction of the first positioning assembly A110, and the left-right direction of the carrier body A200 is parallel to the left-right direction of the first positioning assembly A110. Specifically, when an infant or a child is placed in the carrier body A200, the front end of the first positioning assembly A110 is closer to the feet of the infant or the child than the rear end. Conversely, the rear end of the first positioning assembly A110 is closer to the head of the infant or the child than the front end, the left end of the first positioning assembly A110 is closer to the left hand of the infant or the child than the right end. The right end of the first positioning assembly A110 is closer to the left hand of the infant or the child than the right end. When the first positioning assembly A110 is oriented in a certain direction, it means that the carrier body A200 is oriented in the same direction, and at the same time, the child placed in the carrier body A200 is oriented in the same direction. In order to intuitively understand the front and rear directions as well as the left and right directions of the carrier body A200 and the first positioning assembly A110, arrows Q1 and Q3 in the drawings schematically indicate the "front" and "rear" directions respectively, and arrows Q2 and Q4 schematically indicate the "left" and "right" directions respectively. The Q1 direction is parallel and opposite to the Q3 direction, and the Q2 direction is parallel and opposite to the Q4 direction. Specifically, the Q1 direction is perpendicular to the Q2 direction. These orientation terms are used only to make the description of the embodiments of the present disclosure clearer and are not used to inappropriately limit the scope of protection of the present disclosure. In the following description, the first positioning assembly A110 being oriented in the first direction F1 relative to the second positioning assembly A120 means that the front end of the first positioning assembly A110 is oriented in the first direction F1. The first positioning assembly A110 being oriented in the second direction F2 relative to the second positioning assembly A120 means that the front end of the first positioning assembly A110 is oriented in the second direction F2. The first positioning assembly A110 being oriented in the third direction F3 relative to the second positioning assembly A120 means that the front end of the first positioning assembly A110 is oriented in the third direction F3. The first positioning assembly A110 being oriented in the fourth direction F4 relative to the second positioning assembly A120 means that the front end of the first positioning assembly A110 is oriented in the fourth direction F4. In order to clearly understand the position of the second slider A142 relative to the first slider A141 in the first embodiment, the position of the second slider A142 will be explained below with reference to the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, and with reference to the first positioning assembly A110 having a generally discshaped structure.

[0102] In the first embodiment, as for the first positioning assembly A110, when the first slider A141 is arranged at the rotational axis, the second slider A142 may be arranged behind the first slider A141 (see FIG. 3 and FIG. 8), which can be regarded as when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, the first slider A141 is located at the intersection center A133, and the second slider A142 is arranged on a side of the first slider A141 in the third direction F3, that is, the second slider A142 is located at the second rail section A1312. In this way, the first positioning assembly A110 is rotatable and slidable relative to the second positioning assembly A120 through the sliding of the first slider A141 along the second rail A132 and the sliding of the second slider A142 along the first rail A131.

[0103] In the case where the first slider A141 is arranged at the rotational axis and the second slider A142 is arranged at the rear of the first slider A141, the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the positioning assembly A100 by the sliding of the first slider A141 along the second rail A132 and the sliding of the second slider A142 along the first rail A131 are briefly explained below in connection with relevant diagrams.

[0104] FIG. 1 is a perspective view of the positioning assembly A100 when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120. FIG. 2 is a perspective view of the positioning assembly A100 when the first positioning assembly A110 is oriented in the third direction F3 relative to the second positioning assembly A120. FIG. 5 may be regarded as a top view of the positioning assembly A100 when the first positioning assembly A110 is oriented in the first direction F1 or the third direction F3 relative to the second positioning assembly A120 (specific principles are described later), in which the first positioning assembly A110 is transparently processed, and the first positioning assembly A110 is replaced with a virtual circular structure. Similarly, the first positioning assembly A110 in FIG. 6, FIG. 7, FIG. 21, and FIG. 22 are transparently processed.

[0105] As shown in FIG. 3 to FIG. 5, in the case where the first slider A141 is arranged at the rotational axis, and the second slider A142 is arranged at the rear of the first slider A141 in the frontrear direction of the first positioning assembly, when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, the first slider A141 is located at the intersection center A133, i.e., the point M or N', and the second slider A142 is located at the end of the second rail section A1312 away from the intersection center A133, i.e., the point N.

[0106] When the user needs to switch the first positioning assembly A110 from being oriented in the first direction F1 to being oriented in the second direction F2 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the front to facing the left side, as shown in FIG. 3 and FIG. 4, the user can directly pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in a counterclockwise direction. In this way, the first slider A141 can be moved from the point M to the point M’ in the third rail section A1321, and at the same time, the second slider A142 can be moved synchronously from the point N to the point N' in the second rail section A1312 (switching from FIG. 5 to FIG. 6 and from FIG. 8 to FIG. 9). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120 while being movable in a lateral direction (specifically, in a left direction, i.e., the second direction F2) relative to the second positioning assembly A120 from the intersection center A133 to protrude from the left edge of the second positioning assembly A120 (switching from FIG. 1 to FIG. 12). When the first slider A141 is moved to the point M', the second slider A142 is located at the point N', that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the second direction F2 relative to the second positioning assembly A120, and the first positioning assembly A110 is pulled outward in the second direction F2 relative to the second positioning assembly A120. It should be noted that the process of switching the first positioning assembly A110 between being oriented in the first direction F1 and being oriented in the second direction F2 relative to the second positioning assembly A120 is reversible, that is, the orientation of the first positioning assembly A110 relative to the second positioning assembly A120 can be switched from the first direction F1 to the second direction F2, and can be also switched from the second direction F2 to the first direction F1.

[0107] When the user needs to switch the first positioning assembly A110 from being oriented in the second direction F2 to being oriented in the third direction F3 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the left side to facing the rear, as shown in FIG. 3 and FIG. 4, the user can pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the second slider A142 can be moved from the point N' to the point N'' in the first rail section A1311, and at the same time, the first slider A141 can be moved synchronously from the point M' to the point M in the third rail section A1321 (switching from FIG. 6 to FIG. 5 and from FIG. 9 to FIG. 10). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120 while the first positioning assembly A110 is moved relative to the second positioning assembly A120 from the lateral direction (specifically, the left direction, i.e., the second direction F2) toward the intersection center A133 (switching from FIG. 12 to FIG. 2). When the second slider A142 is moved to point N'', the first slider A141 is located at point M, that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the third direction F3 relative to the second positioning assembly A120. Similarly, the process of switching the first positioning assembly A110 between being oriented in the second direction F2 and being oriented in the third direction F3 relative to the second positioning assembly A120 is reversible.

[0108] Further, when the user needs to switch the first positioning assembly A110 from being oriented in the third direction F3 to being oriented in the fourth direction F4 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the rear to facing the right side, as shown in FIG. 3 and FIG. 4, the user can directly pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first slider A141 can be moved from the point M to the point M'' in the fourth rail section A1322, and the second slider A142 can be moved synchronously from the point N'' to the point N' in the first rail section A1311 (switching from FIG. 5 to FIG. 7 and from FIG. 10 to FIG. 11). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120 while being movable in the lateral direction (specifically, in a right direction, i.e., the fourth direction F4) relative to the second positioning assembly A120 from the intersection center A133 to protrude from the right edge of the second positioning assembly A120 (switching from FIG. 2 to FIG. 13). When the first slider A141 is moved to the point M'', the second slider A142 is located at the point N', that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the fourth direction F4 relative to the second positioning assembly A120, and the first positioning assembly A110 is pulled outward in the fourth direction F4 relative to the second positioning assembly A120. Similarly, when the user needs to switch the first positioning assembly A110 from being oriented in the fourth direction F4 to being oriented in the first direction F1 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from being face the right side to facing the front, the user can directly pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the second slider A142 can be moved from the point N' to the point N in the second rail section A1312, and the first slider A141 can be moved synchronously from the point M' to the point M in the rail section A1322 (switching from FIG. 7 to FIG. 5 and from FIG. 11 to FIG. 8). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120 while the first positioning assembly A110 is moved relative to the second positioning assembly A120 from the lateral direction (specifically, the right direction, i.e., the fourth direction F4) toward the intersection center A133 (switching from FIG. 13 to FIG. 1). Similarly, the process of switching the first positioning assembly A110 between being oriented in the third direction F3 and being oriented in the fourth direction F4 relative to the second positioning assembly A120 is reversible. The process of switching the first positioning assembly A110 between being oriented in the fourth direction F4 and being oriented in the first direction F1 relative to the second positioning assembly A120 is also reversible.

[0109] It should be noted that the above description takes the process of rotating the first positioning assembly A110 with respect to the second positioning assembly A120 by one circle in the counterclockwise direction as an example to explain the principle of sliding while rotating. Of course, the process of rotating the first positioning assembly A110 with respect to the second positioning assembly A120 by one circle in the clockwise direction can also be taken as an example to illustrate the principle of sliding while rotating, and details are not described herein again.

[0110] In this embodiment, a distance R1 between the intersection center A133 and an end of the first rail A131 is equal to a distance R3 between the first slider A141 and the second slider A142, that is, R1=R3. A distance R2 between the intersection center A133 and an end of the second rail A132 is equal to a distance R3 between the first slider A141 and the second slider A142, that is, R2=R3. In other words, the length of each of the first rail section A1311, the second rail section A1312, the third rail section A1321, and the fourth rail section A1322 is equal to the distance R3 between the first slider A141 and the second slider A142. Of course, in other unillustrated embodiments, the distance R3 between the first slider A141 and the second slider A142 may be smaller than the distance R1 between the intersection center A133 and the end of the first rail A131 and the distance R2 between the intersection center A133 and the end of the second rail A132, so that when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in each direction, the first positioning assembly A110 can continue to slide in the direction. For example, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 from being oriented in the first direction F1 to being oriented in the second direction F2, the second slider A142 is located at the intersection center A133, i.e., the point M, and the first slider A141 is located between the two ends of the third rail section A1321, that is, between the point M' and the point M. In this case, the user can continue to pull the first positioning assembly A110 in the second direction F2 to move the first slider A141 and the second slider A142 along the third rail section A1321 until the first slider A141 is located at the end of the third rail section A1321 away from the intersection center A133, i.e., the point M'. Alternatively, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 from being oriented in the first direction F1 to the second direction F2, the second slider A142 is located at the intersection center A133, i.e., the point M, and the first slider A141 is located between the two ends of the third rail section A1321, that is, between the point M' and the point M. In this case, the user can push the first positioning assembly A110 in the fourth direction F4 to move the first slider A141 and the second slider A142 from the third rail section A1321 to the fourth rail section A1322.

[0111] It should be noted that the first positioning assembly A110 may have a disc-shaped structure, and the rotation axis is a center of a circle, so that the shape of the orthographic projection of the first positioning assembly A110 on the second positioning assembly A120 is symmetrical about the rotation axis of the first positioning assembly A110. In addition, if the lengths of the rail section are the same, the overlapping area and range between the first positioning assembly A110 and the second positioning assembly A120 when the first positioning assembly A110 is oriented in the first direction F1 after rotating relative to the second positioning assembly A120 are the same as those when the first positioning assembly A110 is oriented away from the first direction F1 relative to the second positioning assembly A120. In other words, the position of the orthographic projection of the first positioning assembly A110 on the second positioning assembly A120 when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120 is the same as the position of the orthographic projection of the first positioning assembly A110 on the second positioning assembly A120 when the first positioning assembly A110 is oriented in the third direction F3 relative to the second positioning assembly A120. Therefore, the carrier body A200 shown in FIG. 5 can be regarded as rotating the first positioning assembly A110 relative to the second positioning assembly A120 to be oriented in the first direction F1 or to be oriented in the third direction F3.

[0112] According to the principle and process of rotating and sliding of the first positioning assembly A110 relative to the second positioning assembly A120 in the case described above, when the first positioning assembly A110 is rotated from being oriented in the first direction F1 or the third direction F3 to being oriented in the second direction F2 or the fourth direction F4 relative to the second positioning assembly A120, the first positioning assembly A110 can be rotated relative to the second positioning assembly A120 to change the orientation, and can be pulled outward relative to the second positioning assembly A120 to get closer to the vehicle door (with reference to the state as shown in FIG. 12 and FIG.13). In this way, the carrier body A200 connected to the first positioning assembly A110 can be closer to the vehicle door when rotating with the first positioning assembly A110 to be oriented the second direction F2 or the fourth direction F4 (with reference to the state as shown in FIG. 14). In other words, when the first positioning assembly A110 is oriented in the second direction F2 or the fourth direction F4 relative to the second positioning assembly A120, the first positioning assembly A110 can be simultaneously pulled outward relative to the second positioning assembly A120 to get closer to the vehicle door (for example, close to the left door or the right door), thus facilitating the user to take the child out of the carrier body A200 or place the child into the carrier body A200. That is, rotation (turning) and sliding (e.g., lateral pulling out) can be performed synchronously. In addition, since it is not necessary to perform rotation first and then a lateral pullout operation as in a conventional way, the convenience of the operation is improved.

[0113] In the positioning assembly A100 provided in the first embodiment, as shown in FIG. 4, the second positioning assembly A120 may include a second top cover A121 and a second bottom cover A122, and the second top cover A121 and the second bottom cover A122 are connected up and down to form a second mounting cavity A123 (see FIG. 8). Referring to FIG. 3, FIG. 4, and FIG. 8, specifically, the first slider A141 may include a first slide rod A1411 and a first sliding block A1412, and the second slider A142 may include a second slide rod A1421 and a second sliding block A1422. As shown in FIG. 8 to FIG. 10, the first rail A131 may include a first channel A1313 and a first slide groove A1314, and the second rail A132 may include a second channel A1323 and a second slide groove A1324. Both the first channel A1313 and the second channel A1323 are arranged on the lower surface of the second top cover A121, that is, on a side of the second top cover A121 facing the second mounting cavity A123. The first channel A1313 and the second channel A1323 are intersected and communicate with each other, and both the first channel A1313 and the second channel A1323 communicate with the second mounting cavity A123. The first slide groove A1314 is arranged inside the first channel A1313, the second slide groove A1324 is arranged inside the second channel A1323, and both the first slide groove A1314 and the second slide groove A1324 have a through-groove structure. The first slider A141 is connected at the rotation axis of the first positioning assembly A110 through the first slide rod A1411, and the second slider A142 is connected to the first positioning assembly A110 through the second slide rod A1421 and offset from the rotational axis. The first slide rod A1411 extends into the second slide groove A1324 and is connected to the first sliding block A1412, and the second slide rod A1421 extends into the first slide groove A1314 and is connected to the second sliding block A1422. The first slider A141 is slidable along the second rail A132 through the first sliding block A1412, and the second slider A142 is slidable along the first rail A131 through the second sliding block A1422. Of course, in other embodiments, the first rail A131 and the second rail A132 may be a recessed groove structure provided on the upper surface of the second top cover A121, the first slider A141 may slide along the second rail A132 through the first sliding block A1412, and the second slider A142 may slide along the first rail A131 through the second sliding block A1422. It should be noted that both the first slider A141 and the second slider A142 may have an integrally formed structure, that is, the first sliding block A1412 and the first slide rod A1411 are integrally formed, and forms an integrative structure, and the second sliding block A1422 and the second slide rod A1421 are integrally formed, and forms an integrative structure. Of course, in other embodiments, the first sliding block A1412 and the first slide rod A1411 may be different components, and the first sliding block A1412 may be connected to the first slide rod A1411 by welding, riveting, or the like to form the first slider A141. The second sliding block A1422 and the second slide rod A1421 may also be different components, and the second sliding block A1422 may be connected to the second slide rod A1421 by welding, riveting, or the like to form the second sliderA142.

[0114] It should be noted that the term “through groove structure” refers to a groove that communicates with the second mounting cavity A123, and the term “recessed groove structure” refers to a groove that does not communicate with the second mounting cavity A123.

[0115] Referring to FIG. 4 and FIG. 15, a second embodiment of the present disclosure provides a positioning assembly A100 which can be regarded as a modification of the positioning assembly A100 in the first embodiment, with a difference mainly due to the position of the second slider A142. In the case of no conflict, the difference of this embodiment from the first embodiment described above is mainly described below.

[0116] Specifically, in the second embodiment, as for the first positioning assembly A110, when the first slider A141 is arranged at the rotational axis, the second slider A142 may be further arranged at the front of the first slider A141 in the front-rear direction of the first positioning assembly A110 (see FIG. 10 and FIG. 15). When the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, the first slider A141 is located at the intersection center A133, and the second slider A142 is arranged at the front of the first slider A141, that is, on the side of the first slider A141 in the first direction F1. At this time, the second slider A142 is located at the first rail section A1311. In this way, the first positioning assembly A110 is also rotatable and slidable relative to the second positioning assembly A120 through the sliding of the first slider A141 along the second rail A132 and the sliding of the second slider A142 along the first rail A131.

[0117] In the case where the first slider A141 is arranged at the rotation axis and the second slider A142 is arranged at the front of the first slider A141, the principle and process of rotating and sliding the first positioning assembly A110 of the positioning assembly A100 relative to the second positioning assembly A120 through the sliding of the first slider A141 along the second rail A132 and the sliding of the second slider A142 along the first rail A131 are briefly explained below in connection with relevant diagrams.

[0118] It should be noted that when the diagrams related to the second slider A142 arranged at the rear of the first slider A141 is the same as the diagrams related to the second slider A142 arranged at the front of the first slider A141, the explanation of the related diagram in the first embodiment can be referred to. Further, the relationship between the distance between the first slider A141 and the second slider A142 and the length of each rail section can be referred to the description of the first embodiment. Specifically, in the case where the first slider A141 is arranged at the rotational axis, and the second slider A142 is arranged at the front of the first slider A141, referring to the FIG. 5, when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, the first slider A141 is located at the intersection center A133, i.e., the point M or N', and the second slider A142 is located at the end of the first rail section A1311 away from the intersection center A133, i.e., the point N''.

[0119] When the user needs to switch the first positioning assembly A110 from being oriented in the first direction F1 to being oriented in the second direction F2 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the front to facing the left side, as shown in FIG.4 and FIG.15, the user can directly pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first slider A141 can be moved from the point M to the point M'' in the fourth rail section A1322, and at the same time, the second slider A142 can be moved synchronously from the point N'' to the point N' in the first rail section A1311 (switching from FIG. 5 to FIG. 7 and from FIG. 10 to FIG. 11). It is to be noted that the positioning assembly A100 shown in FIG. 7, FIG. 10 and FIG. 11 referenced in this embodiment is slightly different from the positioning assembly A100 shown in the same FIG. 7, FIG. 10 and FIG. 11 referenced in the first embodiment. The difference is that: in this embodiment, when referring to FIG. 7 and FIG.11, the first positioning assembly A110 is oriented in the second direction F2, whereas in the first embodiment, when referring to FIG. 7 and FIG. 11, the first positioning assembly A110 is oriented in the fourth direction F4. Furthermore, when referring to FIG. 10 in this embodiment, the first positioning assembly A110 is oriented in the first direction F1, whereas in the first embodiment, when referring to FIG. 7, the first positioning assembly A110 is oriented in the third direction F3. During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120 while being movable to the right relative to the second positioning assembly A120 from the intersection center A133 to retract relative to the left edge of the second positioning assembly A120, and protrude from the right edge (switching from FIG. 1 to FIG. 16), that is, the first positioning assembly A110 is rotated to be oriented in the second direction F2 while being moved in the fourth direction F4. When the first slider A141 is moved to the point M'', the second slider A142 is located at the point N', that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the second direction F2 relative to the second positioning assembly A120, and the first positioning assembly A110 retracts inward in the second direction F2 relative to the second positioning assembly A120.

[0120] When the user needs to switch the first positioning assembly A110 from being oriented in the second direction F2 to being oriented in the third direction F3 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the left side to facing the rear, as shown in FIG. 4 and FIG. 15, the user can pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the second slider A142 can be moved from the point N' to the point N in the second rail section A1312, and at the same time, the first slider A141 can be moved synchronously from the point M'' to the point M in the fourth rail section A1322 (switching from FIG. 7 to FIG. 5 and from FIG. 11 to FIG. 8). Similarly, the positioning assembly A100 shown in FIG. 8 referenced in this embodiment is slightly different from the positioning assembly A100 shown in FIG. 8 referenced in the first embodiment. The difference is that: in this embodiment, when referring to FIG. 8, the first positioning assembly A110 is oriented in the third direction F3, whereas in the first embodiment, when referring to FIG.8, the first positioning assembly A110 is oriented in the first direction F1. During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120 while the first positioning assembly A110 is moved relative to the second positioning assembly A120 from the right edge to the intersection center A133 (switching from FIG. 16 to FIG. 2). When the second slider A142 is moved to point N, the first slider A141 is located at point M, that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the third direction F3 relative to the second positioning assembly A120.

[0121] Further, when the user needs to switch the first positioning assembly A110 from being oriented in the third direction F3 to being oriented in the fourth direction F4 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the rear to facing the right side, as shown in FIG.4 and FIG.15, the user pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first slider A141 can be moved from the point M to the point M' in the third rail section A1321, so that the second slider A142 is moved synchronously from the point N to the point N' in the second rail section A1312 (switching from FIG. 5 to FIG. 6 and from FIG. 8 to FIG. 9). Similarly, the positioning assembly A100 shown in FIG. 6 and FIG. 9 referenced in this embodiment is slightly different from the positioning assembly A100 shown in the same FIG. 6 and FIG. 9 referenced in the first embodiment. The difference is that: in this embodiment, when referring to FIG. 6 and FIG.9, the first positioning assembly A110 is oriented in the fourth direction F4, whereas in the first embodiment, when referring to FIG. 6 and FIG. 9, the first positioning assembly A110 is oriented in the second direction F2. During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120 while being moved to the left relative to the second positioning assembly A120 from the intersection center A133 to retract relative to the right edge of the second positioning assembly A120, and protrude from the left edge (switching from FIG. 2 to FIG. 18), that is, the first positioning assembly A110 is rotated to be oriented in the fourth direction F4 and moved in the second direction F2. When the first slider A141 is moved to the point M', the second slider A142 is located at the point N', that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the fourth direction F4 relative to the second positioning assembly A120, and the first positioning assembly A110 retracts inward in the fourth direction F4 relative to the second positioning assembly A120. Similarly, when the user needs to switch the first positioning assembly A110 from being oriented in the fourth direction F4 to being oriented in the first direction F1 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the right side to facing the front, the user directly pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the second slider A142 can be moved from the point N to the point N'' in the first rail section A1311, and the first slider A141 can be moved synchronously from the point M' to the point M in the second rail section A1312 (switching from FIG. 6 to FIG. 5, from FIG. 9 to FIG. 10). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, and the first positioning assembly A110 is moved relative to the second positioning assembly A120 from the left edge to the intersection center A133 (switching from FIG. 18 to FIG. 1).

[0122] It should be noted that, in the case where the first slider A141 is arranged at the rotational axis, and the second slider A142 is arranged at the front of the first slider A141 in the front-rear direction of the first positioning assemble, the process of switching the first positioning assembly A110 between being oriented in the first direction F1 and being oriented in the second direction F2 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the second direction F2 and being oriented in the third direction F3 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the third direction F3 and being oriented in the fourth direction F4 relative to the second positioning assembly A120 is reversible, and the process of switching the first positioning assembly A110 between being oriented in the fourth direction F4 and being oriented in the first direction F1 relative to the second positioning assembly A120 is reversible.

[0123] According to the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the case described above, it can be known that when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 from being oriented in the first direction F1 or the third direction F3 to being oriented in the second direction F2 or the fourth direction F4, the first positioning assembly A110 can be rotated relative to the second positioning assembly A120 to change the orientation, and can also retract inward relative to the second positioning assembly A120 to move away from the vehicle door on this side (see FIG. 16 and FIG. 18). In this way, the carrier body A200 connected to the first positioning assembly A110 can move away from the vehicle door on this side when being oriented in the second direction F2 or the fourth direction F4 (see FIG. 17 and FIG. 19). In other words, when the first positioning assembly A110 is oriented in the second direction F2 or the fourth direction F4 relative to the second positioning assembly A120, the first positioning assembly A110 can retract inward relative to the second positioning assembly A120 to move away from the vehicle door on this side, preventing the carrier body A200 from hitting the vehicle door or interfering with the vehicle door when rotating to be oriented in the lateral direction. Further, the distance between the front end of the carrier body A200 and the vehicle door is increased, and when a child placed on the carrier body A200 which is laterally arranged, there is a large space for placing the feet. In addition, since it is not necessary to perform rotation first and then lateral retraction as in the conventional way, the convenience of the operation is improved.

[0124] It should be noted that in the above embodiment, the intersection center A133 may be a geometric center of the second positioning assembly A120, and the second positioning assembly A120 is symmetrically arranged relative to the axis of the first rail A131. In this way, when the first positioning assembly A110 is oriented in the second direction F2 or the fourth direction F4, the first positioning assembly A110 can protrude or retract toward a side (e.g., left side or right side) of the second positioning assembly A120 relative to the second positioning assembly A120.

[0125] Referring to FIG. 4 and FIG. 20, a third embodiment of the present disclosure provides a positioning assembly A100 which can be regarded as a modification of the positioning assembly A100 in the first embodiment, with a difference mainly due to the position of the second slider A142. Similarly, in the case of no conflict, the difference of this embodiment from the first embodiment described above is mainly described below.

[0126] Specifically, in the third embodiment, as for the first positioning assembly A110, when the first slider A141 is arranged at the rotational axis, the second slider A142 may be further arranged on a left side of the first slider A141 in the front-rear direction of the first positioning assembly A110 (see FIG. 9 and FIG. 20), that is, when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, and the first slider A141 is located at the intersection center A133, the second slider A142 is arranged on the side of the first slider A141 in the second direction F2, that is, the second slider A142 is located at the third rail section A1321. In this way, the first positioning assembly A110 is also rotatable and slidable relative to the second positioning assembly A120 through the sliding of the first slider A141 along the first rail A131 and the sliding of the second slider A142 along the second rail A132.

[0127] In the case where the first slider A141 is arranged at the rotation axis and the second slider A142 is arranged on left side of the first slider A141 (that is, the second slider A142 is arranged on the side of the first slider A141 in the Q2 direction), the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the positioning assembly A100 through the sliding of the first slider A141 along the first rail A131 and the sliding of the second slider A142 along the second rail A132 are briefly explained below in connection with relevant diagrams.

[0128] Similarly, it should be noted that the relationship between the distance between the first slider A141 and the second slider A142 and the length of each rail section can be referred to the description of the first embodiment. Specifically, in the case where the first slider A141 is arranged at the rotational axis, and the second slider A142 is arranged on the left side of the first slider A141, referring the FIG. 5, when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, the first slider A141 is located at the intersection center A133, i.e., the point M or N', and the second slider A142 is located at the end of the third rail section A1321 away from the intersection center A133, i.e., the point M'.

[0129] When the user needs to switch the first positioning assembly A110 from being oriented in the first direction F1 to being oriented in the second direction F2 relative to the second positioning assembly A120, as shown in FIG.4 and FIG.20, the user can directly pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first slider A141 can be moved from the point M (i.e., the point N') to the point N’’ in the first rail section A1311, and at the same time, the second slider A142 can be moved synchronously from the point M' to the point M (i.e., the point N') in the third rail section A1321 (switching from FIG. 5 to FIG. 21). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved forward and backward in the front-rear direction of the vehicle (specifically forward, i.e., in the first direction F1) relative to the second positioning assembly A120 from the intersection center A133, so that the first positioning assembly A110 can protrude beyond a part of the front edge of the second positioning assembly A120 in the first direction F1 (see FIG. 21). When the first slider A141 is moved to the point N'', the second slider A142 is located at the point M (i.e., the point N'), that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the second direction F2 relative to the second positioning assembly A120, and the first positioning assembly A110 is pulled outward in the first direction F1 relative to the second positioning assembly A120.

[0130] When the user needs to switch the first positioning assembly A110 from being oriented in the second direction F2 to being oriented in the third direction F3 relative to the second positioning assembly A120, as shown in FIG. 4 and FIG. 20, the user can pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the second slider A142 can be moved from the point M (i.e., the point N') to the point M'' in the fourth rail section A1322, and at the same time, the first slider A141 can be moved synchronously from the point N'' to the point M (i.e., the point N') in the first rail section A1311 (switching from FIG. 21 to FIG. 5). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120 while the first positioning assembly A110 is moved relative to the second positioning assembly A120 from the front edge to the intersection center A133. When the second slider A142 is moved to point M'', the first slider A141 is located at point M (i.e., the point N'), that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the third direction F3 relative to the second positioning assembly A120.

[0131] Further, when the user needs to switch the first positioning assembly A110 from being oriented in the third direction F3 to being oriented in the fourth direction F4 relative to the second positioning assembly A120, as shown in FIG.4 and FIG.20, the user pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first slider A141 can be moved from the point M (i.e., the point N') to the point N in the second rail section A1312, so that the second slider A142 is moved synchronously from the point M'' to the point M (i.e., the point N') in the fourth rail section A1322 (switching from FIG. 5 to FIG. 22). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved forward and backward in the front-rear direction of the vehicle (specifically backward, i.e., in the third direction F3 F3) relative to the second positioning assembly A120 from the intersection center A133, so as to protrude beyond the rear edge of the second positioning assembly A120 (see FIG. 22). When the first slider A141 is moved to the point N, the second slider A142 is located at the point M (i.e., N'), that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the fourth direction F4 relative to the second positioning assembly A120, and the first positioning assembly A110 is pulled outward in the third direction F3 relative to the second positioning assembly A120. Similarly, when the user needs to switch the first positioning assembly A110 being oriented in the fourth direction F4 to being oriented in the first direction F1 relative to the second positioning assembly A120, the user directly pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the second slider A142 can be moved from the point M (i.e., the point N') to the point M' in the third rail section A1321, and the first slider A141 can be moved synchronously from the point N to the point M (i.e., the point N') in the second rail section A1312 (switching from FIG. 22 to FIG. 5). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, and the first positioning assembly A110 is moved relative to the second positioning assembly A120 from the rear edge to the intersection center A133.

[0132] It should be noted that, in the case where the first slider A141 is arranged at the rotational axis, and the second slider A142 is arranged on the left side of the first slider A141, the process of switching the first positioning assembly A110 between being oriented in the first direction F1 and being oriented in the second direction F2 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the second direction F2 and being oriented in the third direction F3 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the third direction F3 and being oriented in the fourth direction F4 relative to the second positioning assembly A120 is reversible, and the process of switching the first positioning assembly A110 between being oriented in the fourth direction F4 and being oriented in the first direction F1 relative to the second positioning assembly A120 is reversible.

[0133] According to the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the case described above, it can be known that when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 from being oriented in the first direction F1 or the third direction F3 to being oriented in the fourth direction F4, the first positioning assembly A110 can be rotated relative to the second positioning assembly A120 to change the orientation, and can also be moved backward relative to the second positioning assembly A120 in the front-rear direction of the vehicle. Specifically, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 from being oriented in the first direction F1 or the third direction F3 to being oriented in the second direction F2, the first positioning assembly A110 can be rotated relative to the second positioning assembly A120 to change the orientation, and can also be moved forward relative to the second positioning assembly A120 in the traveling direction of the vehicle (compared with FIG. 5 and FIG. 21). Taking a seven-seater vehicle as an example, in general, a rear door of the vehicle is mounted at the second row of seats, so that, for example, when the carrier body A200 is mounted at the third row of seats through the positioning assembly A100, the distance between the carrier body A200 and the rear-left door can be reduced when the carrier body A200 is rotated with the first positioning assembly A110 to face the left side, i.e., to be oriented in the second direction F2. In this way, it is convenient for the user to place the child into the carrier body A200 or take the child out of the carrier body A200 at the rear-left door.

[0134] Referring to FIG. 4 and FIG. 23, a fourth embodiment of the present disclosure provides a positioning assembly A100 which can be regarded as a modification of the positioning assembly A100 in the third embodiment, with a difference mainly due to the position of the second slider A142. Similarly, in the case of no conflict, the difference of this embodiment from the first embodiment described above is mainly described below.

[0135] Specifically, in the fourth embodiment, as for the first positioning assembly A110, when the first slider A141 is arranged at the rotational axis, the second slider A142 may be further arranged on the right side of the first slider A141 in the front-rear direction of the first positioning assembly A110 (see FIG. 11 and FIG. 23), that is, when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, and the first slider A141 is located at the intersection center A133, the second slider A142 is arranged on the side of the first slider A141 in the fourth direction F4, that is, the second slider A142 is located at the fourth rail section A1322. In this way, the first positioning assembly A110 is also rotatable and slidable relative to the second positioning assembly A120 through the sliding of the first slider A141 along the first rail A131 and the sliding of the second slider A142 along the second rail A132.

[0136] In the case where the first slider A141 is arranged at the rotation axis and the second slider A142 is arranged on the right side of the first slider A141 (that is, the second slider A142 is located on the side of the first slider A141 in the Q4 direction), the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the positioning assembly A100 through the sliding of the first slider A141 along the first rail A131 and the sliding of the second slider A142 along the second rail A132 are briefly explained below in connection with relevant diagrams.

[0137] Similarly, it should be noted that the relationship between the distance between the first slider A141 and the second slider A142 and the length of each rail section can be referred to the description of the first embodiment. Specifically, in the case where the first slider A141 is arranged at the rotational axis, and the second slider A142 is arranged on the right side of the first slider A141, when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, the first slider A141 is located at the intersection center A133, i.e., the point M or the point N', and the second slider A142 is located at the end of the fourth rail section A1322 away from the intersection center A133, i.e., the point M''.

[0138] When the user needs to switch the first positioning assembly A110 from being oriented in the first direction F1 to being oriented in the second direction F2 relative to the second positioning assembly A120, as shown in FIG. 4 and FIG. 20, the user can directly pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first slider A141 can be moved from the point M (i.e., the point N') to the point N'’ in the second rail section A1312, and at the same time, the second slider A142 can be moved synchronously from the point M'' to the point M (i.e., the point N') in the fourth rail section A1322 (switching from FIG. 5 to FIG. 22). It should be noted that the positioning assembly A100 shown in FIG. 22 referenced in this embodiment is slightly different from the positioning assembly A100 shown in FIG. 22 referenced in the third embodiment. The difference is that: in this embodiment, when referring to FIG. 22, the first positioning assembly A110 is oriented in the second direction F2, whereas in the third embodiment, when referring to FIG.22, the first positioning assembly A110 is oriented in the fourth direction F4. During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved forward and backward in the front-rear direction of the vehicle (specifically backward, i.e., in the third direction F3 F3) relative to the second positioning assembly A120 from the intersection center A133, so as to protrude beyond the rear edge of the second positioning assembly A120 (see FIG. 22). When the first slider A141 is moved to the point N, the second slider A142 is located at the point M (i.e., the point N'), that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the second direction F2 relative to the second positioning assembly A120, and the first positioning assembly A110 is pulled outward in the third direction F3 relative to the second positioning assembly A120.

[0139] When the user needs to switch the first positioning assembly A110 from being oriented in the second direction F2 to being oriented in the third direction F3 relative to the second positioning assembly A120, as shown in FIG. 4 and FIG. 23, the user can pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the second slider A142 can be moved from the point M (i.e., the point N') to the point M' in the third rail section A1321, and at the same time, the first slider A141 can be moved synchronously from the point N to the point M (i.e., the point N') in the second rail section A1312 (switching from FIG. 22 to FIG. 5). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, and the first positioning assembly A110 is moved relative to the second positioning assembly A120 from the rear edge to the intersection center A133. When the second slider A142 is moved to point M', the first slider A141 is located at point M (i.e., the point N'), that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the third direction F3 relative to the second positioning assembly A120.

[0140] Further, when the user needs to switch the first positioning assembly A110 from being oriented in the third direction F3 to being oriented in the fourth direction F4 relative to the second positioning assembly A120, as shown in FIG. 4 and FIG. 23, the user pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first slider A141 can be moved from the point M (i.e., the point N') to the point N'' in the first rail section A1311, the second slider A142 can be moved synchronously from the point M' to the point M (i.e., the point N') in the fourth rail section A1322 (switching from FIG. 5 to FIG. 21). Similarly, the positioning assembly A100 shown in FIG. 21 referenced in this embodiment is slightly different from the positioning assembly A100 shown in FIG. 21 referenced in the third embodiment. The difference is that: in this embodiment, when referring to FIG. 21, the first positioning assembly A110 is oriented in the fourth direction F4, whereas in the third embodiment, when referring to FIG.21, the first positioning assembly A110 is oriented in the second direction F2. During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved forward and backward in the front-rear direction of the vehicle (specifically forward, i.e., in the first direction F1) relative to the second positioning assembly A120 from the intersection center A133, so that the first positioning assembly A110 can protrude beyond the front edge of the second positioning assembly A120 in the first direction F1 (see FIG. 21). When the first slider A141 is moved to the point N'', the second slider A142 is located at the point M (i.e., point N'), that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the fourth direction F4 relative to the second positioning assembly A120, and the first positioning assembly A110 is pulled outward in the first direction F1 relative to the second positioning assembly A120. Similarly, when the user needs to switch the first positioning assembly A110 being oriented in the fourth direction F4 to being oriented in the first direction F1 relative to the second positioning assembly A120, the user directly pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the second slider A142 can be moved from the point M (i.e., the point N') to the point M'' in the fourth rail section A1322, and the first slider A141 can be moved synchronously from the point N'' to the point M (i.e., the point N’) in the first rail section A1311 (switching from FIG. 21 to FIG. 5). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, and the first positioning assembly A110 is moved relative to the second positioning assembly A120 from the front edge to the intersection center A133.

[0141] It should also be noted that, in the case where the first slider A141 is arranged at the rotational axis, and the second slider A142 is arranged on the right side of the first slider A141, the process of switching the first positioning assembly A110 between being oriented in the first direction F1 and being oriented in the second direction F2 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the second direction F2 and being oriented in the third direction F3 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the third direction F3 and being oriented in the fourth direction F4 relative to the second positioning assembly A120 is reversible, and the process of switching the first positioning assembly A110 between being oriented in the fourth direction F4 and being oriented in the first direction F1 relative to the second positioning assembly A120 is reversible.

[0142] According to the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the case described above, it can be known that when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 from being oriented in the first direction F1 or the third direction F3 to being oriented in the second direction F2, the first positioning assembly A110 can be rotated relative to the second positioning assembly A120 to change the orientation, and can also be moved backward relative to the second positioning assembly A120 in the front-rear direction of the vehicle. Specifically, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 from being oriented in the first direction F1 or the third direction F3 to being oriented in the fourth direction F4, the first positioning assembly A110 can be rotated relative to the second positioning assembly A120 to change the orientation, and can also be moved forward relative to the second positioning assembly A120 in the traveling direction of the vehicle (compared with FIG. 5 and FIG. 21). Similarly, taking a seven-seater vehicle as an example, when the carrier body A200 is mounted at the third row of seats through the positioning assembly A100, the distance between the carrier body A200 and the rear-right door can be reduced when the carrier body A200 is rotated with the first positioning assembly A110 to face the right side, i.e., to be oriented in the fourth direction F4. In this way, it is convenient for the user to place the child into the carrier body A200 or take the child out of the carrier body A200 at the rear-right door.

[0143] As can be seen from the above description, in the first to fourth embodiments described above, when the first slider A141 is arranged at the rotation axis, the second slider A142 may be arranged at the front, rear, left and right sides of the first slider A141 in the front-rear direction of the first positioning assembly A110, and the first positioning assembly A110 in each embodiment can slide while rotating relative to the second positioning assembly A120. Therefore, the convenience of the user operation can be improved.

[0144] Referring to FIG. 24 and FIG.25, a fifth embodiment of the present disclosure provides a positioning assembly A100 which can be regarded as a modification of the positioning assembly A100 in the first embodiment. The positioning assembly A100 in this embodiment also includes the first positioning assembly A110 and the second positioning assembly A120. The difference from the positioning assembly A100 in the first embodiment is that, in this embodiment, the first positioning assembly A110 is provided with the first rail A131 and the second rail A132, and the second positioning assembly A120 is provided with the first slider A141 and the second slider A142. The first positioning assembly A110 is similarly rotatable and slidable relative to the second positioning assembly A120 through the sliding of the first slider A141 along one of the first rail A131 or the second rail A132 and the sliding of the second slider A142 along the other of the first rail A131 or the second rail A132. Therefore, in the case of no conflict, the structure and connection relationship of the first positioning assembly A110 and the second positioning assembly A120 in this embodiment can be referred to the description of the above first embodiment, and following mainly describes the differences between this embodiment and the above first embodiment. It should be noted that in the positioning assembly A100 in this embodiment, the extension directions of the first rail A131 and the second rail A132 are changed during rotating and sliding with the first positioning assembly A110 (see the following description). Furthermore, it should also be noted that in this embodiment, the first positioning assembly A110 can also be oriented in the first direction F1, the second direction F2, the third direction F3, and the fourth direction F4 relative to the second positioning assembly A120. The first direction F1, the second direction F2, the third direction F3, and the fourth direction F4 are the same as the first direction F1, the second direction F2, the third direction F3, and the fourth direction F4 in the above-described first embodiment, that is, can be regarded as the front direction of the vehicle, the rear direction of the vehicle, the left direction of the vehicle, and the right direction of the vehicle, respectively.

[0145] Specifically, in the positioning assembly A100 provided in the fifth embodiment, as shown in FIG. 24, the first positioning assembly A110 is provided with the first rail A131 and the second rail A132. The first rail section A1311 extends forward from the intersection center A133 in the front-rear direction of the first positioning assembly A110, that is, in the Q1 direction. The second rail section A1312 extends backward from the intersection center A133 in the front-rear direction of the first positioning assembly A110, that is, in the Q3 direction. The third rail section A1321 extends leftward from the intersection center A133 in the left-right direction of the first positioning assembly A110, that is, in the Q2 direction. The fourth rail section A1322 extends rightward from the intersection center A133 in the left-right direction of the first positioning assembly A110, that is, in the Q4 direction. As shown in FIG. 25, the second positioning assembly A120 is provided with a first slider A141 and a second slider A142. The second positioning assembly A120 has a positioning axis, the first slider A141 is arranged coaxially with the positioning axis, and the second slider A142 is offset from the positioning axis. For example, the second slider A142 is located on the side of the first slider A141 in the third direction F3. In particular, the positioning axis may be the geometric center of the second positioning assembly A120.

[0146] In order to have a clearer understanding of the position of the second slider A142 relative to the first slider A141 in the fifth embodiment, similarly, as in the first embodiment, the position of the second slider A142 is described hereinafter with reference to the first positioning assembly A110 being oriented in the first direction F1 relative to the second positioning assembly A120.

[0147] Specifically, in the fifth embodiment, as for the second positioning assembly A120, in the case when the first slider A141 is arranged at the positioning axis, the second slider A142 can be arranged behind the first slider A141 (see FIG. 25), that is, the second slider A142 can be arranged on the side of the first slider A141 in the third direction F3. When the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, as shown in FIG. 26, the first rail section A1311 may be regarded as extending from the intersection center A133 in the first direction F1, the second rail section A1312 may be regarded as extending from the intersection center A133 in the third direction F3, the third rail section A1321 may be regarded as extending from the intersection center A133 in the second direction F2, and the fourth rail section A1322 may be regarded as extending from the intersection center A133 in the fourth direction F4. In this case, the first slider A141 is located at the intersection center A133, and the second slider A142 is located at the second rail section A1312. In this way, the first positioning assembly A110 is rotatable and slidable relative to the second positioning assembly A120 through the sliding of the first slider A141 along the second rail A132 and the sliding of the second slider A142 along the first rail A131.

[0148] In the case when the first slider A141 is arranged at the positioning axis of the second positioning assembly A120 and the second slider A142 is arranged behind of the first slider A141, the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the positioning assembly A100 through the sliding of the first slider A141 along the second rail A132 and the sliding of the second slider A142 along the first rail A131 are briefly explained below in connection with relevant diagrams.

[0149] In the positioning assembly A100 provided in the fifth embodiment, as shown in FIG. 24, the first positioning assembly A110 may include a first top cover A111 and a first bottom cover A112. The first top cover A111 and the first bottom cover A112 are connected up and down to form a first mounting cavity (not shown). FIG. 26 to FIG. 29 are top views of the positioning assembly A100 when the first positioning assembly A110 is oriented in different directions relative to the second positioning assembly A120. In order to clearly understand the principle of sliding while rotating the first positioning assembly A110 relative to the second positioning assembly A120, only the first bottom cover A112 of the first positioning assembly A110 is retained in FIG. 26 to FIG. 29.

[0150] As shown in FIG. 25 and FIG. 26, in the case when the first slider A141 is arranged at the positioning axis of the second positioning assembly A120, and the second slider A142 is arranged at the rear of the first slider A141 in the first direction F1, when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, the first slider A141 is located at the intersection center A133, i.e., the point M or the point N', the second slider A142 is located at the end of the second rail section A1312 away from the intersection center A133, i.e., the point N.

[0151] When the user needs to switch the first positioning assembly A110 from being oriented in the first direction F1 to being oriented in the second direction F2 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the front to facing the left side. As shown in FIG. 24 and FIG. 25, the user can directly pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the first slider A141 relative to the first positioning assembly A110 in the fourth rail section A1322 is switched from the point M to the point M'', and at the same time, the position of the second slider A142 relative to the first positioning assembly A110 in the second rail section A1312 is switched from the point N to the point N' (switching from FIG. 26 to FIG. 27). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved forward and backward in the front-rear direction of the vehicle (specifically backward, i.e., in the third direction F3 F3) relative to the second positioning assembly A120, so as to protrude beyond the rear edge of the second positioning assembly A120 (see FIG. 27). When the first slider A141 is moved to the point M'', the second slider A142 is located at the point N', that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the second direction F2 relative to the second positioning assembly A120, and the first positioning assembly A110 is pulled outward in the third direction F3 relative to the second positioning assembly A120. It should be noted that when the first positioning assembly A110 is rotated to be oriented in the second direction F2, as shown in FIG. 27, the first rail section A1311 may be regarded as extending from the intersection center A133 in the second direction F2, the second rail section A1312 may be regarded as extending from the intersection center A133 in the fourth direction F4, the third rail section A1321 may be regarded as extending from the intersection center A133 in the third direction F3, and the fourth rail section A1322 may be regarded as extending from the intersection center A133 in the first direction F1.

[0152] When the user needs to switch the first positioning assembly A110 from being oriented in the second direction F2 to being oriented in the third direction F3 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the left side to facing the rear. As shown in FIG. 24 and FIG. 25, the user can pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the second slider A142 relative to the first positioning assembly A110 in the first rail section A1311 is switched from the point N' to the point N'', and at the same time, the position of the first slider A141 relative to the first positioning assembly A110 in the fourth rail section A1322 is switched synchronously from the point M'' to the point M (switching from FIG. 27 to FIG. 28). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved forward and backward in the front-rear direction of the vehicle relative to the second positioning assembly A120 (specifically, it is moved from the rear edge of the second positioning assembly A120 to the position where the first slider A141 is located, that is, in the first direction F1). In this way, when the first positioning assembly A110 is rotated to be oriented in the third direction F3 relative to the second positioning assembly A120, the position of its orthographic projection on the second positioning assembly A120 is the same as that when the first positioning assembly A110 is rotated to be oriented in the first direction F1 relative to the second positioning assembly A120 (see FIG. 26 and FIG. 28). When the second slider A142 is moved to the point N'', the first slider A141 is located at the point M, that is, the intersection center A133. At this time, the first positioning assembly A110 is oriented in the third direction F3 relative to the second positioning assembly A120. It should be noted that, when the first positioning assembly A110 is rotated to be oriented in the third direction F3, as shown in FIG. 28, the first rail section A1311 may be regarded as extending from the intersection center A133 toward the third direction F3, the second rail section A1312 may be regarded as extending from the intersection center A133 toward the first direction F1, the third rail section A1321 may be regarded as extending from the intersection center A133 toward the fourth direction F4, and the fourth rail section A1322 may be regarded as extending from the intersection center A133 toward the second direction F2.

[0153] Further, when the user needs to switch the first positioning assembly A110 from being oriented in the third direction F3 to being oriented in the fourth direction F4 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the rear to facing the right side. As shown in FIG. 24 and FIG. 25, the user pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the first slider A141 relative to the first positioning assembly A110 in the third rail section A1321 is switched from the point M to the point M', and at the same time, the position of the second slider A142 relative to the first positioning assembly A110 in the first rail section A1311 is switched synchronously from the point N'' to the point N' (switching from FIG. 28 to FIG. 29). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved forward and backward in the front-rear direction of the vehicle (specifically backward, i.e., in the third direction F3 F3) relative to the second positioning assembly A120, so as to protrude beyond the rear edge of the second positioning assembly A120 (see FIG. 29). When the first slider A141 is moved to the point M', the second slider A142 is located at the point N', that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the fourth direction F4 relative to the second positioning assembly A120, and the first positioning assembly A110 is pulled outward in the third direction F3 relative to the second positioning assembly A120. It should be noted that, when the first positioning assembly A110 is rotated to be oriented in the fourth direction F4, as shown in FIG. 29, the first rail section A1311 may be regarded as extending from the intersection center A133 toward the fourth direction F4, the second rail section A1312 may be regarded as extending from the intersection center A133 toward the second direction F2, the third rail section A1321 may be regarded as extending from the intersection center A133 toward the first direction F1, and the fourth rail section A1322 may be regarded as extending from the intersection center A133 toward the third direction F3.

[0154] Similarly, when the user needs to switch the first positioning assembly A110 from being oriented in the fourth direction F4 to being oriented in the first direction F1 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the right side to facing the front, the user directly pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the second slider A142 relative to the first positioning assembly A110 in the second rail section A1312 is switched from the point N' to the point N, and at the same time, the position of the first slider A141 relative to the first positioning assembly A110 in the third rail section A1321 is switched synchronously from the point M' to the point M (switching from FIG. 29 to FIG. 26). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved forward and backward in the front-rear direction of the vehicle relative to the second positioning assembly A120 (specifically, it moves from the rear edge of the second positioning assembly A120 to the position where the first slider A141 is located, that is, in the first direction F1) to reset.

[0155] Similarly, it should be noted that in the case when the first slider A141 is arranged at the positioning axis of the second positioning assembly A120, and the second slider A142 is arranged behind the first slider A141, the process of switching the first positioning assembly A110 between being oriented in the first direction F1 and being oriented in the second direction F2 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the second direction F2 and being oriented in the third direction F3 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the third direction F3 and being oriented in the fourth direction F4 relative to the second positioning assembly A120 is reversible, and the process of switching the first positioning assembly A110 between being oriented in the fourth direction F4 and being oriented in the first direction F1 relative to the second positioning assembly A120 is reversible.

[0156] Similarly, it should be noted that the above description takes the process of rotating the first positioning assembly A110 with respect to the second positioning assembly A120 by one circle in the counterclockwise direction as an example to explain the principle of sliding while rotating. Of course, the process of rotating the first positioning assembly A110 with respect to the second positioning assembly A120 by one circle in the clockwise direction can also be taken as an example to illustrate the principle of sliding while rotating, and details are not described herein again.

[0157] Referring to FIG. 24 and FIG. 30, a sixth embodiment of the present disclosure provides a positioning assembly A100 which can be regarded as a modification of the positioning assembly A100 in the fifth embodiment, with a difference mainly due to the position of the second slider A142. Therefore, in the case of no conflict, the difference of this embodiment from the fifth embodiment described above is mainly described below.

[0158] Specifically, in the sixth embodiment, as for the second positioning assembly A120, when the first slider A141 is arranged at the positioning axis, the second slider A142 may be further arranged at the front of the first slider A141 (see FIG. 30), that is, the second slider A142 may be arranged on the side of the first slider A141 in the first direction F1. When the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, the first slider A141 is located at the intersection center A133, and the second slider A142 is located at the first rail section A1311. In this way, the first positioning assembly A110 is rotatable and slidable relative to the second positioning assembly A120 through the sliding of the first slider A141 along the second rail A132 and the sliding of the second slider A142 along the first rail A131.

[0159] In the case when the first slider A141 is arranged at the positioning axis of the second positioning assembly A120 and the second slider A142 is arranged at the front of the first slider A141, the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the positioning assembly A100 through the sliding of the first slider A141 along the second rail A132 and the sliding of the second slider A142 along the first rail A131 are briefly explained below in connection with relevant diagrams.

[0160] Specifically, in the case when the first slider A141 is arranged at the positioning axis of the second positioning assembly A120, and the second slider A142 is arranged in the front of the first slider A141, when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, the first slider A141 is located at the intersection center A133, i.e., the point M or the point N', the second slider A142 is located at the end of the first rail section A1311 away from the intersection center A133, i.e., the point N'' (referring to FIG. 26).

[0161] When the user needs to switch the first positioning assembly A110 from being oriented in the first direction F1 to being oriented in the second direction F2 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the front to facing the left side. As shown in FIG. 24 and FIG. 30, the user can pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated synchronously with the first positioning assembly A110, so that the position of the first slider A141 relative to the first positioning assembly A110 in the third rail section A1321 is switched from the point M to the point M', and at the same time, the position of the second slider A142 relative to the first positioning assembly A110 in the first rail section A1311 is switched synchronously from the point N'' to the point N (switching from FIG. 26 to FIG. 31). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved forward and backward in the front-rear direction of the vehicle (specifically forward, i.e., in the first direction F1) relative to the second positioning assembly A120 , so that the first positioning assembly A110 in the first direction F1 can protrude beyond a part of the front edge of the second positioning assembly A120 (see FIG. 21). When the first slider A141 is moved to the point M', the second slider A142 is located at the point N', that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the second direction F2 relative to the second positioning assembly A120, and the first positioning assembly A110 is pulled outward in the first direction F1 relative to the second positioning assembly A120.

[0162] When the user needs to switch the first positioning assembly A110 from being oriented in the second direction F2 to being oriented in the third direction F3 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the left side to facing the rear. As shown in FIG. 24 and FIG. 30, the user can directly pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the second slider A142 in the second rail section A1312 is switched from the point N' to the point N, and at the same time, the position of the first slider A141 in the third rail section A1321 is switched synchronously from the point M' to the point M (switching from FIG. 31 to FIG. 28). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved forward and backward in the front-rear direction of the vehicle relative to the second positioning assembly A120 (specifically, it moves from the front edge of the second positioning assembly A120 to the position of the first slider A141, the third direction F3). In this way, when the first positioning assembly A110 is rotated to be oriented in the third direction F3 relative to the second positioning assembly A120, the position of its orthographic projection on the second positioning assembly A120 is the same as that when the first positioning assembly A110 is rotated to be oriented in the first direction F1 relative to the second positioning assembly A120 (see FIG. 26 and FIG. 28). When the second slider A142 is moved to the point N, the first slider A141 is located at the point M, that is, the intersection center A133. At this time, the first positioning assembly A110 is oriented in the third direction F3 relative to the second positioning assembly A120.

[0163] Further, when the user needs to switch the first positioning assembly A110 from being oriented in the third direction F3 to being oriented in the fourth direction F4 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the rear to facing the right side. As shown in FIG. 24 and FIG. 30, the user pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the first slider A141 in the fourth rail section A1322 is switched from the point M to the point M'', and the position of the second slider A142 in the second rail section A1312 is switched synchronously from the point N to the point N' (switching from FIG. 28 to FIG. 32). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved forward and backward in the front-rear direction of the vehicle (specifically forward, i.e., in the first direction F1) relative to the second positioning assembly A120, so that the first positioning assembly A110 can protrude beyond the front edge of the second positioning assembly A120 in the first direction F1 (see FIG. 32). When the first slider A141 is moved to the point M'', the second slider A142 is located at the point N', that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the fourth direction F4 relative to the second positioning assembly A120, and the first positioning assembly A110 is pulled outward in the first direction F1 relative to the second positioning assembly A120. Similarly, when the user needs to switch the first positioning assembly A110 from being oriented in the fourth direction F4 to being oriented in the first direction F1 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the right side to facing the front, the user directly pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the second slider A142 in the first rail section A1311 is switched from the point N' to the point N'', and the position of the first slider A141 in the fourth rail section A1322 is switched synchronously from the point M'' to the point M (switching from FIG. 32 to FIG. 26). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved forward and backward in the front-rear direction of the vehicle relative to the second positioning assembly A120 (specifically, it moves from the front edge of the second positioning assembly A120 to the position of the first slider A141, the third direction F3) to reset.

[0164] Similarly, in the case when the first slider A141 is arranged at the positioning axis of the second positioning assembly A120, and the second slider A142 is arranged in the front of the first slider A141, the process of switching the first positioning assembly A110 between being oriented in the first direction F1 and being oriented in the second direction F2 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the second direction F2 and being oriented in the third direction F3 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the third direction F3 and being oriented in the fourth direction F4 relative to the second positioning assembly A120 is reversible, and the process of switching the first positioning assembly A110 between being oriented in the fourth direction F4 and being oriented in the first direction F1 relative to the second positioning assembly A120 is reversible.

[0165] According to the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the case described above, it can be known that when the first positioning assembly A110 is rotated to be oriented in the second direction F2 relative to the second positioning assembly A120 , the first positioning assembly A110 can be moved forward relative to the second positioning assembly A120 in the driving direction of the vehicle (see FIG. 31 and FIG. 32). Taking a seven-seater vehicle as an example, in general, a rear door of the vehicle is mounted at the second row of seats, so that, for example, when the carrier body A200 is mounted at the third row of seats through the positioning assembly A100, the distance between the carrier body A200 and the rear-left door can be reduced when the carrier body A200 is rotated with the first positioning assembly A110 to face the left side or right side, that is, to be oriented in the second direction F2 or the fourth direction F4, In this way, it is convenient for the user to place the child into the carrier body A200 or take the child out of the carrier body A200 at the rear-left door.

[0166] Referring to FIG. 24 and FIG.33, a seventh embodiment of the present disclosure provides a positioning assembly A100 which can be regarded as a modification of the positioning assembly A100 in the fifth embodiment, with a difference mainly due to the position of the second slider A142. Therefore, in the case of no conflict, the difference of this embodiment from the fifth embodiment described above is mainly described below.

[0167] Specifically, in the seventh embodiment, as for the second positioning assembly A120, when the first slider A141 is arranged at the positioning axis, the second slider A142 can be arranged on the left side of the first slider A141 (see FIG. 33), that is, the second slider A142 can be arranged on the side of the first slider A141 in the second direction F2. When the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, the first slider A141 is located at the intersection center A133. At this time, the second slider A142 is located at the third rail section A1321. In this way, the first positioning assembly A110 is rotatable and slidable relative to the second positioning assembly A120 through the sliding of the first slider A141 along the first rail A131 and the sliding of the second slider A142 along the second rail A132.

[0168] In the case when the first slider A141 is arranged at the positioning axis of the second positioning assembly A120 and the second slider A142 is arranged on the left side of the first slider A141, the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the positioning assembly A100 through the sliding of the first slider A141 along the first rail A131 and the sliding of the second slider A142 along the second rail A132 are briefly explained below in connection with relevant diagrams.

[0169] Specifically, in the case when the first slider A141 is arranged at the positioning axis of the second positioning assembly A120, and the second slider A142 is arranged on the left side of the first slider A141, when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, the first slider A141 is located at the intersection center A133, i.e., the point M or the point N', and the second slider A142 is located at the end of the third rail section A1321 away from the intersection center A133, i.e., the point M'.

[0170] When the user needs to switch the first positioning assembly A110 from being oriented in the first direction F1 to being oriented in the second direction F2 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the front to facing the left side. As shown in FIG.24 and FIG.33, the user can directly pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated synchronously with the first positioning assembly A110, so that the position of the first slider A141 in the second rail section A1312 is switched from the point M (i.e., the point N') to the point N, and at the same time, the position of the second slider A142 in the third rail section A1321 is switched synchronously from the point M' to the point M (i.e., the point N') (switching from FIG. 26 to FIG. 34). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved laterally in the front-rear direction of the vehicle (specifically, moved in the left side direction, i.e., in the second direction F2) relative to the second positioning assembly A120, so as to protrude beyond the left edge of the second positioning assembly A120 (see FIG.34), that is, pulled outward to the left side. When the first slider A141 is moved to the point N, the second slider A142 is located at the point M (i.e., the point N'), that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the second direction F2 relative to the second positioning assembly A120, and the first positioning assembly A110 relative to the second positioning assembly A120 is pulled outward in the second direction F2.

[0171] When the user needs to switch the first positioning assembly A110 from being oriented in the second direction F2 to being oriented in the third direction F3 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the left side to facing the rear. As shown in FIG. 24 and FIG. 33, the user can pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the second slider A142 in the fourth rail section A1322 is switched from the point M (i.e., the point N') to the point M'', and at the same time, the position of the first slider A141 in the second rail section A1312 is switched synchronously from the point N to the point M (i.e., the point N') (switching from FIG. 34 to FIG. 28). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 is moved relative to the second positioning assembly A120 from the lateral direction (specifically, the left side direction) to the position where the first slider A141 is located (i.e., the positioning axis). When the second slider A142 is moved to the point M'', the first slider A141 is located at the point M (i.e., the point N'), that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the third direction F3 relative to the second positioning assembly A120.

[0172] Further, when the user needs to switch the first positioning assembly A110 from being oriented in the third direction F3 to being oriented in the fourth direction F4 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the rear to facing the right side. As shown in FIG. 24 and FIG. 33, the user pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the first slider A141 in the first rail section A1311 is switched from the point M (i.e., the point N') to the point N'’, the position of the second slider A142 in the fourth rail section A1322 is switched synchronously from the point M'' to the point M (i.e., the point N') (switching from FIG. 28 to FIG. 35). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved laterally in the front-rear direction of the vehicle (specifically moves along the left side direction, the second direction F2) relative to the second positioning assembly A120 , so as to retract relative to the right edge of the second positioning assembly A120 and protrude beyond the left edge (see FIG. 35), that is, retracted inwardly along the right side. When the first slider A141 is moved to the point N'', the second slider A142 is located at the point M (i.e., the point N'), that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the fourth direction F4 relative to the second positioning assembly A120, and the first positioning assembly A110 retracts inward in the fourth direction F4 relative to the second positioning assembly A120. Similarly, when the user needs to switch the first positioning assembly A110 from being oriented in the fourth direction F4 to being oriented in the first direction F1 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the right side to facing the front, the user directly pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the second slider A142 in the third rail section A1321 is switched from the point M (i.e., the point N') to the point M', the position of the first slider A141 in the first rail section A1311 is switched synchronously from the point N'' to the point M (i.e., the point N') (switching from FIG. 35 to FIG. 26). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 is moved relative to the second positioning assembly A120 from the lateral direction (specifically, the left side direction) to the position where the first slider A141 is located (i.e., the positioning axis).

[0173] Similarly, in the case when the first slider A141 is arranged at the positioning axis of the second positioning assembly A120, and the second slider A142 is provided on the left side of the first slider A141, the process of switching the first positioning assembly A110 between being oriented in the first direction F1 and being oriented in the second direction F2 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the second direction F2 and being oriented in the third direction F3 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the third direction F3 and being oriented in the fourth direction F4 relative to the second positioning assembly A120 is reversible, and the process of switching the first positioning assembly A110 between being oriented in the fourth direction F4 and being oriented in the first direction F1 relative to the second positioning assembly A120 is reversible.

[0174] According to the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the case described above, it can be known that when the first positioning assembly A110 is rotated from being oriented in the first direction F1 or the third direction F3 to being oriented in the second direction F2 or the fourth direction F4 relative to the second positioning assembly A120, the first positioning assembly A110 can be rotated relative to the second positioning assembly A120 to change the orientation, and can also be pulled outward in the second direction F2 or retracted inward in the fourth direction F4 relative to the second positioning assembly A120. In some embodiments, the first rail section A1311 may be selectively canceled, that is, the first rail A131 includes only the second rail section A1312. In this case, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 from being oriented in the first direction F1 or the third direction F3 to being oriented in the second direction F2, the first positioning assembly A110 can be pulled outward relative to the second positioning assembly A120 in the second direction F2. In this way, the carrier body A200 connected to the first positioning assembly A110 can be closer to the vehicle door when rotating with the first positioning assembly A110 to be oriented in the second direction F2, thereby facilitating the user to take the child out of the carrier body A200 or place the child into the carrier body A200. Similarly, in other embodiments, the second rail section A1312 may be selectively canceled, that is, the first rail A131 includes only the first rail section A1311. In this case, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 from being oriented in the first direction F1 or the third direction F3 to being oriented in the fourth direction F4, the first positioning assembly A110 may be rotated relative to the second positioning assembly A120 to change the orientation, and may also retract inward relative to the second positioning assembly A120 in the fourth direction F4, so as to be away from the vehicle door. When the child is placed in the carrier body A200 that is laterally arranged (specifically, arranged toward the right door), this can be prevented from hitting the vehicle door when turning to the lateral use state, and can have a large space for placing the feet in the lateral use state. In addition, since it is not necessary to perform operations, such as rotating first and then pulling out laterally or pushing in laterally as in the conventional way, the convenience of the operation is improved.

[0175] Referring to FIG. 24 and FIG. 30, an eighth embodiment of the present disclosure provides a positioning assembly A100 which can be regarded as a modification of the positioning assembly A100 in the fifth embodiment, with a difference mainly due to the position of the second slider A142. Therefore, in the case of no conflict, the difference of this embodiment from the fifth embodiment described above is mainly described below.

[0176] Specifically, in the eighth embodiment, as for the second positioning assembly A120, when the first slider A141 is arranged at the positioning axis, the second slider A142 may be further arranged on the right side of the first slider A141 (see FIG. 36), that is the second slider A142 may be arranged on the side of the first slider A141 in the fourth direction F4. When the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, and the first slider A141 is located at the intersection center A133, the second slider A142 is located at the fourth rail section A1322. In this way, the first positioning assembly A110 is rotatable and slidable relative to the second positioning assembly A120 through the sliding of the first slider A141 along the first rail A131 and the sliding of the second slider A142 along the second rail A132.

[0177] In the case where the first slider A141 is arranged at the positioning axis of the second positioning assembly A120 and the second slider A142 is arranged on the right side of the first slider A141, the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the positioning assembly A100 through the sliding of the first slider A141 along the first rail A131 and the sliding of the second slider A142 along the second rail A132 are briefly explained below in connection with relevant diagrams.

[0178] Specifically, in the case when the first slider A141 is arranged at the positioning axis the second positioning assembly A120, and the second slider A142 is arranged at the right side of the first slider A141, when the first positioning assembly A110 is oriented in the first direction F1 relative to the second positioning assembly A120, the first slider A141 is located at the intersection center A133, i.e., the point M or the point N', and the second slider A142 is located at the end of the fourth rail section A1322 away from the intersection center A133, i.e., the point M''(referring to FIG. 26).

[0179] When the user needs to switch the first positioning assembly A110 from being oriented in the first direction F1 to being oriented in the second direction F2 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the front to facing the left side. As shown in FIG.24 and FIG.36, the user can directly pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated synchronously with the first positioning assembly A110, so that the position of the first slider A141 in the first rail section A1311 is switched from the point M (i.e., the point N') to the point N', and at the same time, the position of the second slider A142 in the fourth rail section A1322 is switched synchronously from the point M’ to the point M or the point N' (switching from FIG. 26 to FIG. 37). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved laterally in the front-rear direction of the vehicle (specifically moves along the right side direction, the fourth direction F4) relative to the second positioning assembly A120, so as to retract relative to the left edge of the second positioning assembly A120 and protrude beyond the right edge (see FIG. 37), that is, retract inward toward the left side. When the first slider A141 is moved to the point N'', the second slider A142 is located at the point M or the point N', that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the second direction F2 relative to the second positioning assembly A120, and the first positioning assembly A110 retracts inward in the second direction F2 relative to the second positioning assembly A120.

[0180] When the user needs to switch the first positioning assembly A110 from being oriented in the second direction F2 to being oriented in the third direction F3 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the left side to facing the rear. As shown in FIG. 24 and FIG. 36, the user can pull the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the second slider A142 in the third rail section A1321 is switched from the point M or the point N' to the point M', and at the same time, the position of the first slider A141 in the first rail section A1311 is switched synchronously from the point N'' to the point M or the point N' (switching from FIG. 37 to FIG. 28). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 is moved relative to the second positioning assembly A120 from the lateral direction (specifically, the right side direction) to the position where the first slider A141 is located (i.e., the positioning axis). Thus, when the first positioning assembly A110 is rotated to be oriented in the third direction F3 relative to the second positioning assembly A120, the position of its orthographic projection on the second positioning assembly A120 is the same as that when the first positioning assembly A110 is rotated to be oriented in the first direction F1 relative to the second positioning assembly A120 (see FIG. 26 and FIG. 28). When the second slider A142 is moved to the point M', the first slider A141 is located at the point M or the point N', that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the third direction F3 relative to the second positioning assembly A120.

[0181] Further, when the user needs to switch the first positioning assembly A110 from being oriented in the third direction F3 to being oriented in the fourth direction F4 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the rear to facing the right side. As shown in FIG. 24 and FIG. 36, the user pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the first slider A141 in the second rail section A1312 is switched from the point M or the point N’ to the point N, and the position of the second slider A142 in the third rail section A1321 is switched synchronously from the point M' to the point M or the point N' (switching from FIG. 28 to FIG. 38). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 can be moved laterally in the front-rear direction of the vehicle (specifically, moved in the right side direction, i.e., the fourth direction F4) relative to the second positioning assembly A120, so as to protrude beyond the right edge of the second positioning assembly A120 (see FIG.38), that is, pulled outward to the right side. When the first slider A141 is moved to the point N, the second slider A142 is located at the point M or the point N', that is, at the intersection center A133. At this time, the first positioning assembly A110 is oriented in the fourth direction F4 relative to the second positioning assembly A120, and the first positioning assembly A110 is pulled outward in the fourth direction F4 relative to the second positioning assembly A120. Similarly, when the user needs to switch the first positioning assembly A110 from being oriented in the fourth direction F4 to being oriented in the first direction F1 relative to the second positioning assembly A120, that is, to switch the carrier body A200 from facing the right side to facing the front, the user directly pulls the carrier body A200, so that the carrier body A200 drives the first positioning assembly A110 to move, and the first positioning assembly A110 has a tendency to rotate in the counterclockwise direction. In this way, the first rail A131 and the second rail A132 are rotated simultaneously with the first positioning assembly A110, so that the position of the second slider A142 in the fourth rail section A1322 is switched from the point M or the point N' to the point M'', the position of the first slider A141 in the second rail section A1312 is switched synchronously from the point N to the point M or the point N' (switching from FIG. 38 to FIG. 26). During this process, the first positioning assembly A110 is gradually rotated relative to the second positioning assembly A120, meanwhile, the first positioning assembly A110 is moved relative to the second positioning assembly A120 from the lateral direction (specifically, the right side direction) to the position where the first slider A141 is located (which may be regarded as the positioning axis) to rest.

[0182] It should be noted that, in the case where the first slider A141 is arranged at the positioning axis of the second positioning assembly A120, and the second slider A142 is provided on the right side of the first slider A141, the process of switching the first positioning assembly A110 between being oriented in the first direction F1 and being oriented in the second direction F2 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the second direction F2 and being oriented in the third direction F3 relative to the second positioning assembly A120 is reversible, the process of switching the first positioning assembly A110 between being oriented in the third direction F3 and being oriented in the fourth direction F4 relative to the second positioning assembly A120 is reversible, and the process of switching the first positioning assembly A110 between being oriented in the fourth direction F4 and being oriented in the first direction F1 relative to the second positioning assembly A120 is reversible.

[0183] According to the principle and process of rotating and sliding the first positioning assembly A110 relative to the second positioning assembly A120 in the case described above, it can be known that when the first positioning assembly A110 is rotated from the first direction F1 or the third direction F3 to being oriented in the second direction F2 or the fourth direction F4 relative to the second positioning assembly A120, the first positioning assembly A110 can be rotated relative to the second positioning assembly A120 to change the orientation, and can also be pulled outward in the fourth direction F4 or retracted inward in the second direction F2 relative to the second positioning assembly A120. In some embodiments, the second rail section A1312 may be selectively canceled, that is, the first rail A131 includes only the first rail section A1311. In this case, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 from the first direction F1 or the third direction F3 to being oriented in the second direction F2, the first positioning assembly A110 may retract inward relative to the second positioning assembly A120 in the second direction F2, so as to be away from the vehicle door. When the child is placed in the carrier body A200 that is laterally arranged (specifically, arranged toward the left door), this can be prevented from hitting the vehicle door when turning to the lateral use state, and can have a large space for placing the foot in the lateral use state. Similarly, in other embodiments, the first rail section A1311 may be selectively canceled, that is, the first rail A131 includes only the second rail section A1312. In this case, when the first positioning assembly A110 relative to the second positioning assembly A120 is rotated from being oriented the first direction F1 or the third direction F3 to being oriented in the fourth direction F4, the first positioning assembly A110 may be rotated relative to the second positioning assembly A120 to change the orientation, and may be pulled outward relative to the second positioning assembly A120 in the fourth direction F4 to be closer to the vehicle door. In this way, the carrier body A200 connected to the first positioning assembly A110 can be closer to the vehicle door, thereby facilitating the user to take the child out of the carrier body A200 or place the child into the carrier body A200. In addition, since it is not necessary to perform operations, such as turning first and then pulling out laterally or pushing in laterally as in the conventional way, in this way, the convenience of the operation is improved. Of course, in other unillustrated embodiments, both the first rail section A1311 and the second rail section A1312 may be retained, and the positioning assembly A100 further includes a blocking mechanism (see below). The blocking mechanism may be provided on the moving path of the first slider A141 along the first rail section A1311 to restrict the rotation of the first positioning assembly A110 relative to the second positioning assembly A120 from being oriented in the first direction F1 or the third direction F3 to being oriented in the second direction F2, so that the carrier body A200 can only be rotated with the first positioning assembly A110 to be oriented in the fourth direction F4 to be pulled outward toward the right side to improve the convenience of taking and placing child laterally (specifically in the direction toward the right side) . Alternatively, the blocking mechanism may also be provided on the moving path of the first slider A141 along the second rail section A1312 to restrict the rotation of the first positioning assembly A110 relative to the second positioning assembly A120 from being oriented in the first direction F1 or the third direction F3 to being oriented in the fourth direction F4, so that the carrier body A200 can only be rotated with the first positioning assembly A110 to be oriented in the second direction F2 to retract inward toward the left side, so as to prevent hitting the left door when the carrier body A200 is used laterally (specifically in the direction toward the left side), while increasing the placement space for the feet when used laterally.

[0184] As can be seen from the above description, in the fifth to eighth embodiments described above, when the first slider A141 is arranged at the positioning axis of the second positioning assembly A120, the second slider A142 may be arranged at the front, rear, left and right sides of the first slider A141, and the first positioning assembly A110 in each embodiment can slide while rotating relative to the second positioning assembly A120. Therefore, the convenience of the user operation can be improved.

[0185] It should be noted that the “first slider A141” and the “second slider A142” in the embodiments of the first aspect can be collectively referred to as the slide assembly. In addition, it should also be noted that in the embodiments of this aspect, when the first positioning assembly A110 protrudes to one side (e.g., the left side or the right side) of the second positioning assembly A120 relative to the second positioning assembly A120, that is to say, the first positioning assembly A110 is displaced to one side relative to the geometric center of the second positioning assembly A120, the carrier body A200 can also be regarded as being laterally displaced relative to the second positioning assembly A120, so that the front end of the carrier body A200 (the position where the feet of the child are placed) is closer to the vehicle door on this side. When the first positioning assembly A110 retracts towards one side (e.g., left side or right side) of the second positioning assembly A120 relative to the second positioning assembly A120, that is to say, the first positioning assembly A110 is displaced to the other side opposite to the one side relative to the geometric center of the second positioning assembly A120, the carrier body A200 is similarly retracted laterally relative to the second positioning assembly A120, so that the front end of the carrier body A200 (the position where the feet of the child are placed) is away from the vehicle door on this side.

[0186] A second aspect of the present disclosure provides a carrier A1000 which includes a carrier body A200 and a positioning assembly A100 provided in some embodiments of the present disclosure. The carrier body A200 may be fixedly mounted on the positioning assembly A100. Of course, the carrier body A200 may also be detachably mounted on the positioning assembly A100. In the carrier A1000 provided in this embodiment, the carrier body A200 is the same as the carrier body A200 in the carrier A1000 provided in the embodiment described above. The positioning assembly A100 is similar to the positioning assembly A100 in the embodiment described above, and includes components such as the first positioning assembly A110 and the second positioning assembly A120. Specifically, the positioning assembly A100 of the present embodiment may be regarded as a modification of the positioning assembly A100 described above. Therefore, in the case of no conflict, the structure and connection relationship of the first positioning assembly A110 and the second positioning assembly A120 in this embodiment can be referred to the description of the above embodiment, and following mainly describes the differences between this embodiment and the above embodiment.

[0187] In particular, in some embodiments, the positioning assembly A100 also includes a first positioning assembly A110 and a second positioning assembly A120. The first positioning assembly A110 is configured to be connected to the carrier body A200, and the second positioning assembly A120 is configured to be connected to the vehicle seat. One of the first positioning assembly A110 and the second positioning assembly A120 is provided with a first rail A131 and a second rail A132, and the other of the first positioning assembly and the second positioning assembly is provided with a slide assembly A143. For example, the first positioning assembly A110 is provided with a first rail A131 and a second rail A132, and the second positioning assembly A120 is provided with a slide assembly A143. Specifically, the first rail A131is intersected with the second rail A132, and the slide assembly A143 is rotatable within the first rail A131 and slidable within the second rail A132. The first positioning assembly A110 is rotatable in the first rail A131 by means of rotating of the slide assembly A143 relative to the second positioning assembly A120, and slidable in the second rail A132 by means of sliding of the slide assembly A143 relative to the second positioning assembly A120. More specifically, in this embodiment, the first positioning assembly A110 is provided with the slide assembly A143, and the second positioning assembly A120 is provided with the first rail A131 and the second rail A132. The first rail A131 and the second rail A132 communicate with each other at the intersection therebetween, and the slide assembly A143 is continuously slidable between the first rail A131 and the second rail A132. It should be noted that “continuously slide” means that the slide assembly A143 is movable along the direction of the rail in a continuous manner between the first rail A131 and the second rail A132. This movement can be a shuttle between the two rails, or it can be a continuous unidirectional or reciprocal movement between the two rails along a certain direction.

[0188] Referring to FIG. 39 and FIG. 40, in the positioning assembly A100 provided in a first embodiment of the second aspect, the first positioning assembly A110 is provided with the slide assembly A143, and the second positioning assembly A120 is provided with the first rail A131 and the second rail A132. The first rail A131 includes a first channel A1313 having a circular structure. The center of the first channel A1313 may coincide with or be misaligned with the geometric center of the second positioning assembly A120. Specifically, the center of the first channel A1313 coincides with the geometric center of the second positioning assembly A120, and when the first positioning assembly A110 is mounted on the second positioning assembly A120 and the slide assembly A143 is located within the first channel A1313, and the center of the first channel A1313 is arranged coaxially with the center of the first positioning assembly A110. The second rail A132 extends in a second direction F2 or a fourth direction F4 (that is, opposite to the second direction F2). In particular, the second rail A132 includes a second channel A1323 having a strip-shaped structure, and the first channel A1313 communicates with the second channel A1323 at the intersection therebetween. Specifically, the slide assembly A143 includes a sliding block A1432 connected to the first positioning assembly A110, and the sliding block A1432 is rotatable within the first channel A1313 and slidable within the second channel A1323. More specifically, in this embodiment, the first channel A1313 and the second channel A1323 may be considered as a recessed groove structure arranged on an upper surface of the second top cover A121.

[0189] Still referring to FIG. 39 and FIG. 40, in an embodiment, a length L1 of the sliding block A1432 and a width W1 of the sliding block A1432 are both less than or equal to a diameter D of the first channel A1313 to allow the sliding block A1432 to rotate within the first channel A1313. The length L1 of the sliding block A1432 is larger than a width W2 of the second channel A1323, and the width W1 of the sliding block A1432 is smaller than or equal to the width W2 of the second channel A1323 to allow the sliding block A1432 to slide within the second channel A1323 and restrict rotation within the second channel A1323. In this way, the orientation of the first positioning assembly A110 relative to the second positioning assembly A120 can be changed by the rotation of the sliding block A1432 in the first channel A1313. When the first positioning assembly A110 is oriented in the extending direction of the second channel A1323, the sliding block A1432 can be moved from the first channel A1313 into the second channel A1323, so that the position of the first positioning assembly A110 relative to the second positioning assembly A120 can be changed.

[0190] Specifically, in this embodiment, the second channel A1323 is divided into a third rail section A1321 and a fourth rail section A1322 by the first channel A1313, and the third rail section A1321 and the fourth rail section A1322 communicate with the first channel A1313, respectively. The third rail section A1321 extends from the first channel A1313 in the second direction F2, and the fourth rail section A1322 extends from the first channel A1313 in the fourth direction F4. When the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the second direction F2 or the fourth direction F4, the length direction of the sliding block A1432 is parallel to the second direction F2.

[0191] Referring to FIG. 39 and FIG. 40, when the sliding block A1432 is located within the first channel A1313, the sliding block A1432 is rotatable in the first channel A1313, so that the first positioning assembly A110 is freely rotatable relative to the second positioning assembly A120. For example, the first positioning assembly A110 can be rotated relative to the second positioning assembly A120 to be oriented in any one of the first direction F1, the second direction F2, the third direction F3, and the fourth direction F4. In this embodiment, since the third rail section A1321 extends from the first channel A1313 to the second direction F2, and the fourth rail section A1322 extends from the first channel A1313 to the fourth direction F4, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the second direction F2 or the fourth direction F4, the sliding block A1432 can be driven to move from the first channel A1313 to the third rail section A1321 or the fourth rail section A1322 by pushing or pulling the first positioning assembly A110. Specifically, for example, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the second direction F2, the first positioning assembly A110 can be moved in the direction opposite to the second direction F2 and retract inward by directly pushing the carrier body A200, so that the sliding block A1432 enters the fourth rail section A1322. As a result, the distance between the front end of the carrier body A200 and the left door may be increased when the carrier body A200 is connected to the first positioning assembly A110 (compared with FIG. 41 and FIG. 42). When the carrier body A200 is rotated to be oriented in the second direction F2 along with the first positioning assembly A110 relative to the second positioning assembly A120, the front end of the carrier body A200 can be prevented from hitting the left door. Further, when the child placed on the carrier body A200 which is laterally arranged, there is a large space for placing the feet. Alternatively, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the second direction F2, the carrier body A200 can be moved in the second direction F2 by being pulled directly to protrude to the left side. In this way, when the carrier body A200 is connected to the first positioning assembly A110, the distance between the front end of the carrier body A200 and the left door can be reduced, thereby facilitating the user to take the child out of the carrier body A200 or place the child into the carrier body A200.

[0192] Referring to FIG. 39, FIG. 43, and FIG. 44, a second embodiment of the second aspect of the present disclosure provides a positioning assembly A100 which can be regarded as a modification of the positioning assembly A100 in the first embodiment of the second aspect, with a difference mainly due to structures of the first rail A131 and the second rail A132. Similarly, in the case of no conflict, the difference of this embodiment from the first embodiment of the second aspect described above is mainly described below.

[0193] In this embodiment, as shown in FIG. 43, the first rail A131 includes a first channel A1313 and a first slide groove A1314, and the second rail A132 includes a second channel A1323 and a second slide groove A1324. The structures of the first channel A1313 and the second channel A1323 may refer to the first embodiment of the second aspect, and the difference is that both the first channel A1313 and the second channel A1323 are arranged on a lower surface of the second top cover A121, that is, a side of the second top cover A121 facing the second installation cavity A123. The first slide groove A1314 is arranged on the second top cover A121 and inside the first channel A1313, and the second slide groove A1324 is arranged on the second top cover A121 and inside the second channel A1323. The second slide groove A1324 communicates with the first slide groove A1314 and extends in the extending direction of the second channel A1323, that is, in the second direction F2 or the fourth direction F4. It is noted that the first slide groove A1314 and the second slide groove A1324 are both through-groove structures. Specifically, the slide assembly A143 includes a sliding block A1432 and a slide rod A1431. The slide assembly A143 is connected to the first positioning assembly A110 by a slide rod A1431 which passes through the first slide groove A1314 or the second slide groove A1324 to be connected to the sliding block A1432 so that the slide assembly A143 can be rotated within the first rail A131 and moved within the second rail A132 by the sliding block A1432. It should be noted that the width of the sliding block A1432 is larger than the width of the first slide groove A1314 and the diameter of the second slide groove A1324 (see FIG. 43 and FIG. 44). In this way, the sliding block A1432 can be restricted in the second mounting cavity A123 to prevent the first positioning assembly A110 from disengaging from the second positioning assembly A120 when rotating or sliding relative to the second positioning assembly A120.

[0194] Referring to FIG. 39 and FIG. 45, a third embodiment of the second aspect of the present disclosure provides a positioning assembly A100 which can be regarded as a modification of the positioning assembly A100 in the first embodiment of the second aspect, with a difference mainly due to structures of the first rail A131 and the second rail A132. Similarly, in the case of no conflict, the difference of this embodiment from the first embodiment of the second aspect described above is mainly described below.

[0195] In this embodiment, as shown in FIG. 45, the first rail A131 includes a first channel A1313, and the second rail A132 includes a second channel A1323 having a strip-shaped structure. The first channel A1313 and the second channel A1323 are both arranged on the upper surface of the second top cover A121, and the difference is that the first channel A1313 is in a ring structure, and the second channel A1323 passes through the first channel A1313 and is connected to the first channel A1313 at the intersection. The slide assembly A143 includes two sliding blocks A1432, and the two sliding blocks A1432 are connected to the first positioning assembly A110 and are arranged opposite to each other. The two sliding blocks A1432 can slide synchronously in the first channel A1313, that is, the two sliding blocks A1432 can be slide synchronously along the first channel A1313, so that the first positioning assembly A110 is rotatable relative to the second positioning assembly A120, and the two sliding blocks A1432 can also slide synchronously in the second channel A1323 so that the first positioning assembly A110 is slidable relative to the second positioning assembly A120.

[0196] Specifically, in this embodiment, a distance H1 between sidewalls of the two sliding blocks A1432 facing the center of the first channel A1313 is greater than or equal to an inner ring diameter D1 of the first channel A1313 to allow the two sliding blocks A1432 to move synchronously within the first channel A1313, thereby allowing the first positioning assembly A110 to rotate relative to the second positioning assembly A120. More specifically, the distance H1 (i.e., an inner distance) between the sidewalls of the two sliding blocks A1432 facing the center of the first channel A1313 is greater than a width W2 of the second channel A1323 to allow the sliding blocks A1432 to slide within the second channel A1323 and restrict rotation within the second channel A1323.

[0197] Still referring to FIG. 45, specifically, in this embodiment, the second channel A1323 is divided by the first channel A1313 to form the third rail section A1321, a fifth rail section A1325, and the fourth rail section A1322 arranged sequentially. The first channel A1313 is divided by the second channel A1323 to form a first arc section A1315 and a second arc section A1316. The first end of the first arc section A1315 and the first end of the second arc section A1316 are both connected to the first end of the fifth rail section A1325 and the third rail section A1321, and the second end of the first arc section A1315 and the second end of the second arc section A1316 are both connected to the second end of the fifth rail section A1325 and the fourth rail section A1322. In this way, the two sliding blocks A1432 can simultaneously rotate within the first channel A1313 to change the orientation of the first positioning assembly A110 relative to the second positioning assembly A120 and can simultaneously move from the first channel A1313 to the second channel A1323 to change the position of the first positioning assembly A110 relative to the second positioning assembly A120.

[0198] Referring to FIG. 39 and FIG. 46, a fourth embodiment of the second aspect of the present disclosure provides a positioning assembly A100 which can be regarded as a modification of the positioning assembly A100 in the third embodiment of the second aspect, with a difference mainly due to structures of the first rail A131 and the second rail A132. Similarly, in the case of no conflict, the difference of this embodiment from the third embodiment of the second aspect described above is mainly described below.

[0199] In this embodiment, as shown in FIG. 46, the first rail A131 includes a first channel A1313 and a first slide groove A1314, and the second rail A132 includes a second channel A1323 and a second slide groove A1324. The structures of the first channel A1313 and the second channel A1323 may refer to the third embodiment of the second aspect, the difference is that both the first channel A1313 and the second channel A1323 are arranged on the lower surface of the second top cover A121. Specifically, the first slide groove A1314 is arranged on the second top cover A121 and inside the first channel A1313, so that the first slide groove A1314 can be regarded as a ring structure. The second slide groove A1324 is arranged on the second top cover A121 and inside the second channel A1323. The second slide groove A1324 communicates with the first slide groove A1314 and extends in the extending direction of the second channel A1323, that is, in the second direction F2 or the fourth direction F4. It is noted that the first slide groove A1314 and the second slide groove A1324 are both through-groove structures. More specifically, the slide assembly A143 further includes two slide rods A1431 (see FIG. 39), and both of the two slide rods A1431 are connected to the first positioning assembly A110 and are respectively connected to the two sliding blocks A1432 after passing through the first slide groove A1314 or the second slide groove A1324. It should be noted that the width of the sliding block A1432 is larger than that of the first slide groove A1314 and the second slide groove A1324, respectively (see FIG. 46). Thus, the sliding block A1432 may be restricted within the second mounting cavity A123 to prevent the first positioning assembly A110 from disengaging from the second positioning assembly A120 when the first positioning assembly A110 is rotated or slid relative to the second positioning assembly A120.

[0200] Referring to FIG. 39 and 47, a fifth embodiment of the second aspect of the present disclosure provides a positioning assembly A100 which can be regarded as a modification of the positioning assembly A100 in the fourth embodiment of the second aspect, with a difference mainly due to structures of the first rail A131 and the second rail A132. Similarly, in the case of no conflict, the difference of this embodiment from the fourth embodiment of the second aspect described above is mainly described below.

[0201] In this embodiment, as shown in FIG. 47, the first rail A131 includes only the first slide groove A1314, the first slide groove A1314 has a ring structure, the second rail A132 includes only the second slide groove A1324, the second slide groove A1324 has a strip structure, and the first slide groove A1314 and the second slide groove A1324 communicate with each other at the intersection. Specifically, the second slide groove A1324 is divided by the first slide groove A1314 to form a third rail section A1321, a fifth rail section A1325, and a fourth rail section A1322, which are arranged sequentially, and the first slide groove A1314 is divided by the second slide groove A1324 to form a first arc section A1315 and a second arc section A1316. The first end of the first arc section A1315 and the first end of the second arc section A1316 communicate with the first end of the fifth rail section A1325 and the third rail section A1321, and the second end of the first arc section A1315 and the second end of the second arc section A1316 communicate with the second end of the fifth rail section A1325 and the fourth rail section A1322. More specifically, as shown in FIG. 39 and FIG. 47, the slide assembly A143 includes two sliding blocks A1432 and two slide rods A1431, and both of the two slide rods A1431 are connected to the first positioning assembly A110 and are arranged opposite to each other. The two slide rods A1431 pass through the first slide groove A1314 or the second slide groove A1324 and are respectively connected to the two sliding blocks A1432. The two slide rods A1431 can slide simultaneously within the first slide groove A1314, enabling the first positioning assembly A110 to rotate relative to the second positioning assembly A120, and the two sliding blocks A1432 can slide synchronously within the second slide groove A1324, enabling the first positioning assembly A110 to slide relative to the second positioning assembly A120 in the second direction F2 or the fourth direction F4.

[0202] As can be seen from the above description, in the first to fifth embodiments of the second aspect described above, the first positioning assembly A110 shown in each embodiment can rotate and slide relative to the second positioning assembly A120. It should be noted that in the embodiments of this aspect, when the first positioning assembly A110 protrudes to one side (e.g., the left side or the right side) of the second positioning assembly A120 relative to the second positioning assembly A120, that is to say, the first positioning assembly A110 is displaced to one side relative to the geometric center of the second positioning assembly A120, and the carrier body A200 can also be regarded as being laterally displaced relative to the second positioning assembly A120, so that the front end of the carrier body A200 (the position where the feet of the child are placed) is closer to the vehicle door on this side. When the first positioning assembly A110 retracts towards one side (e.g., left side or right side) of the second positioning assembly A120 relative to the second positioning assembly A120, that is to say, the first positioning assembly A110 is displaced to the other side opposite to the one side relative to the geometric center of the second positioning assembly A120, the carrier body A200 is similarly retracted laterally relative to the second positioning assembly A120, so that the front end of the carrier body A200 (the position where the feet of the child are placed) is further away from the vehicle door on this side.

[0203] An embodiment of a third aspect of the present disclosure provides a carrier A1000 which includes a carrier body A200 and a positioning assembly A100 provided in some embodiments of the present disclosure. The carrier body A200 may be fixedly mounted on the positioning assembly A100. Of course, the carrier body A200 may also be detachably mounted on the positioning assembly A100. In the carrier A1000 provided in this embodiment, the carrier body A200 is the same as the carrier body A200 provided in the embodiment described above. The positioning assembly A100 is similar to the positioning assembly A100 in the embodiment described above, and includes components such as the first positioning assembly A110 and the second positioning assembly A120. The first positioning assembly A110 is rotatable relative to the second positioning assembly A120 so that the first positioning assembly A110 is rotatable relative to the second positioning assembly A120 to be oriented in various directions, for example, the first direction F1, the second direction F2, the third direction F3, or the fourth direction F4. In particular, the principle of rotating of the first positioning assembly A110 relative to the second positioning assembly A120 may refer to any of the embodiments described above. It should be noted that, in this embodiment, the first positioning assembly A110 can rotate and slide relative to the second positioning assembly A120. Alternatively, the first positioning assembly A110 in this embodiment can only rotate relative to the second positioning assembly A120, and is restricted to slide relative to the second positioning assembly A120.

[0204] Referring to FIG. 1 and FIG. 48, in this embodiment, the first top cover A111 of the first positioning assembly A110 is provided with an engaging groove A114. When the carrier body A200 is connected to the first positioning assembly A110, the engaging groove A114 is configured to receive the engaging member A210 on the positioning assembly A100. More specifically, a through hole is arranged inside the engaging groove A114, and the through hole communicates with the first mounting cavity (the cavity inside the first positioning assembly A110, that is, the cavity formed by connecting the first top cover A111 and the first bottom cover A112 up and down). The engaging hook A151 is rotatably arranged in the first mounting cavity and can protrude into the engaging groove A114 through the through hole. When the engaging hook A151 is at the locked position, the engaging hook A151 at least partially protrudes into the engaging groove A114 to lock the opening of the engaging groove A114, so that the engaging member A210 can be restricted in the engaging groove A114. When the engaging hook A151 is at the unlocked position, the engaging hook A151 is retracted from the engaging groove A114 to open the opening of the engaging groove A114, so that the engaging member A210 can be disengaged from the engaging groove A114.

[0205] In an embodiment, the first connecting mechanism A150 may include two sets of engaging hooks A151, and the carrier body A200 is provided with two engaging members A210 (see FIG. 1 and FIG. 48). The two engaging members A210 are arranged at intervals in a Q1 direction or a Q3 direction of the carrier body A200, and correspondingly, the two sets of engaging hooks A151 are arranged at intervals in the Q1 direction (or the Q3 direction) on the first positioning assembly A110. In this way, two sets of engaging hooks A151 can be configured to lock or unlock the corresponding engaging members A210. When the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the first direction F1 or the third direction F3, the Q1 direction and the Q3 direction is parallel to the first direction F1 or the third direction F3. When the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the second direction F2 or the fourth direction F4, the Q1 direction and the Q3 direction is parallel to the second direction F2 or the fourth direction F4. Specifically, when the two engaging members A210 are locked by the two sets of engaging hooks A151 at the same time, the stability and reliability of the carrier body A200 mounted on the first positioning assembly A110 can be improved, and the carrier body A200 is prevented from moving or rotating freely relative to the first positioning assembly A110. Of course, in other embodiments, the first connecting mechanism A150 may also include a set of engaging hooks A151, and the carrier body A200 is provided with an engaging member A210. It should be noted that, in this embodiment, a set of engaging hooks A151 may include one, two or more engaging hooks A151. When the set of engaging hooks A151 includes a plurality of engaging hooks A151, the plurality of engaging hooks A151 are arranged at intervals in a Q2 direction (or a Q4 direction). It should be noted that when the first positioning assembly A110 is oriented in the first direction F1 or the third direction F3 relative to the second positioning assembly A120, the Q2 direction (or the Q4 direction) is parallel to the second direction F2 or the fourth direction F4 (see FIG. 1 and FIG. 2). When the first positioning assembly A110 is oriented in the second direction F2 or the fourth direction F4 relative to the second positioning assembly A120, the Q2 direction (or the Q4 direction) is parallel to the first direction F1 or the third direction F3 (see FIG. 49). It should be noted that the Q1 direction refers to a forward direction in the front-rear direction of the first positioning assembly A110 or the carrier body A200, the Q2 direction refers to a backward direction in the front-rear direction of the first positioning assembly A110 or the carrier body A200, the Q3 direction refers to a leftward direction in the left-right direction of the first positioning assembly A110 or the carrier body A200, and the Q4 direction refers to a rightward direction in the left-right direction of the first positioning assembly A110 or the carrier body A200. The Q1 direction is parallel and opposite to the Q3 direction, the Q2 direction is parallel and opposite to the Q4 direction, and the Q1 direction is intersected with the Q2 direction. Specifically, the Q1 direction is perpendicular to the Q2 direction.

[0206] In other embodiments of the third aspect, the carrier body A200 may be provided with at least two engaging members A210, and the at least two engaging members A210 are arranged at intervals in the Q1 direction or the Q3 direction of the carrier body A200. The first connecting mechanism A150 may include at least three sets of engaging hooks A151, and the at least three sets of engaging hooks A151 are arranged at intervals in the Q1 direction or the Q3 direction on the first positioning assembly A110 (see FIG. 49). When each set of engaging hooks A151 is at the locking position, each set of engaging hooks A151 is respectively configured to engage with and lock each engaging member A210 on the carrier body A200. Specifically, the at least two engaging members A210 can be selectively locked to any at least two adjacent sets of engaging hooks A151 so that the carrier body A200 has a first use state and a second use state relative to the positioning assembly A100.

[0207] Referring to FIG. 48 and FIG. 49, specifically, in this embodiment, taking the carrier body A200 provided with two engaging members A210 and the first connecting mechanism A150 including three sets of engaging hooks A151 as an example, the principle that the two engaging members A210 can be selectively locked by any two adjacent sets of engaging hooks A151 so that the carrier body A200 has the first use state and the second use state relative to the positioning assembly A100 will be briefly described.

[0208] In order to facilitate understanding of the engagement relationship between the two engaging members A210 and the three sets of engaging hooks A151, in the two engaging members A210, the engaging member A210 closer to the front end of the carrier body A200 is referred to as the first engaging member A2101, and the engaging member A210 closer to the rear end of the carrier body A200 is referred to as the second engaging member A2102. With reference to a case where the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the first direction F1, the three sets of engaging hooks A151 on the first positioning assembly A110 are sequentially referred to as the first set of engaging hooks A1511, the second set of engaging hooks A1512, and the third set of engaging hooks A1513 in the Q3 direction of the first positioning assembly A110 (referring to the FIG. 49). In other words, when the first positioning assembly A110 is oriented in the first direction F1, the first set of engaging hooks A1511 is located at the front in the first direction F1 (or the Q1 direction), that is, closer to the support leg A162, and the third set of engaging hooks A1513 is located at the rear in the first direction F1 (or the Q1 direction). When the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the second direction F2, the first set of engaging hooks A1511 may be regarded as being closest to the left door, and the third set of engaging hooks A1513 may be regarded as being closest to the right door. Referring to FIG. 48 to FIG. 50, in an embodiment, when the carrier body A200 is connected to the first positioning assembly A110 through the first connecting mechanism A150, the carrier body A200 and the first positioning assembly A110 may be engaged in the same direction, that is, the orientation of the carrier body A200 relative to the positioning assembly A100 is the same as the orientation of the first positioning assembly A110 relative to the second positioning assembly A120. For example, the first positioning assembly A110 and the carrier body A200 are oriented in the same direction as the first direction F1, the second direction F2, the third direction F3, or the fourth direction F4. As a result, when the carrier body A200 is engaged with the first positioning assembly A110 in the same direction, the first set of engaging hooks A1511 may be regarded as being closer to the front end of the carrier body A200, and the third set of engaging hooks A1513 may be regarded as being closer to the rear end of the carrier body A200.

[0209] Specifically, when the carrier body A200 is in the first use state relative to the positioning assembly A100, the two engaging members A210 (i.e., the first engaging member A2101 and the second engaging member A210) are respectively locked to the front two sets of engaging hooks A151 (i.e., the first set of engaging hooks A1511 and the second set of engaging hooks A1512) which are arranged close to the front end of the first positioning assembly A110. For example, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the second direction F2 (see FIG. 49), and the carrier body A200 is oriented in the second direction F2 (see FIG. 50), the first engaging member A2101 is locked to the first set of engaging hooks A1511, and the second engaging member A2102 is locked to the second set of engaging hooks A1512. At this time, the front end of the carrier body A200 protrudes outward in the orientation of the carrier body A200 (i.e., the second direction F2) relative to the first positioning assembly A110 (not shown). For another example, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 toward the fourth direction F4 (not shown), and the carrier body A200 is oriented in the fourth direction F4, the first engaging member A2101 is locked to the first set of engaging hooks A1511, and the second engaging member A2102 is locked to the second set of engaging hooks A1512. At this time, the front end of the carrier body A200 protrudes outward in the orientation of the carrier body A200 (i.e., the fourth direction F4) relative to the first positioning assembly A110 (not shown). In this way, when the carrier body A200 is rotated to be oriented in the second direction F2 or the fourth direction F4 with the first positioning assembly A110 relative to the second positioning assembly A120, the distance between the front end of the carrier body A200 and the left or right side door can be reduced, thereby facilitating the user to take the child out of the carrier body A200 or place the child into the carrier body A200.

[0210] When the carrier body A200 is in the second use state relative to the positioning assembly A100, the two engaging members A210 (that is, the first engaging member A2101 and the second engaging member A2102) are respectively locked to the last two sets of engaging hooks A151 (that is, the second set of engaging hooks A1512 and the third set of engaging hooks A1513) which are arranged close to the rear end of the first positioning assembly A110. For example, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the second direction F2 (see FIG. 49) and the front end of the carrier body A200 is oriented in the second direction F2 (see FIG. 50), the first engaging member A2101 is locked to the second group engaging hook A1512, and the second engaging member A2102 is locked to the third group engaging hook A1513 (see FIG. 49 and FIG. 51). At this time, the front end of the carrier body A200 retracts inward in the orientation of the carrier body A200 (i.e., the second direction F2) relative to the first positioning assembly A110 (see FIG. 50 and FIG. 51). For another example, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 toward the fourth direction F4 (not shown), and the carrier body A200 is oriented in the fourth direction F4, the first engaging member A2101 is locked to the second set of engaging hooks A1512, and the second engaging member A2102 is locked to the third set of engaging hooks A1513. At this time, the front end of the carrier body A200 retracts inward in the orientation of the carrier body A200 (i.e., the fourth direction F4) relative to the first positioning assembly A110. For another example, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the third direction F3, and the carrier body A200 is oriented in the third direction F3, the first engaging member A2101 is locked to the second set of engaging hooks A1512, and the second engaging member A2102 is locked to the third set of engaging hooks A1513. At this time, the front end of the carrier body A200 retracts inward in the orientation of the carrier body A200 (i.e., the third direction F3) relative to the first positioning assembly A110 (see FIG. 52 and FIG. 53). In this way, when the carrier body A200 is rotated with the first positioning assembly A110 to the second direction F2 (see FIG. 50 and FIG. 51) or the fourth direction F4 relative to the second positioning assembly A120, the distance between the front end of the carrier body A200 and the left or right door can be increased to prevent hitting the left or right door. In addition, there is a larger space for the child to place the feet when sitting lateralward. Similarity, when the carrier body A200 is rotated with the first positioning assembly A110 relative to the second positioning assembly A120 to be oriented in the third direction F3 (see FIG. 52), the distance between the front end of the carrier body A200 and the backrest of the vehicle seat can be increased so that there is a larger space for the child to place the feet when sitting backward.

[0211] Optionally, in other embodiments, when the carrier body A200 is connected to the first positioning assembly A110 through the first connecting mechanism A150, the carrier body A200 and the first positioning assembly A110 may also be engaged in the opposite directions, that is, the orientation of the carrier body A200 relative to the positioning assembly A100 is opposite to the orientation of the first positioning assembly A110 relative to the second positioning assembly A120. For example, when the first positioning assembly A110 is oriented in the first direction F1, the carrier body A200 is oriented in the third direction F3. Alternatively, when the first positioning assembly A110 is oriented in the second direction F2, the carrier body A200 is oriented in the fourth direction F4. It should be noted that, in this embodiment, when the carrier body A200 is connected to the first positioning assembly A110, the carrier body A200 also has the first use state and the second use state. The difference from the above embodiment is that when the carrier body A200 is engaged with the first positioning assembly A110 in the opposite directions, the first set of engaging hooks A1511 is closer to the rear end of the carrier body A200, and the third set of engaging hooks A1513 is closer to the front end of the carrier body A200. When the carrier body A200 is in the first use state relative to the first positioning assembly A110, the two engaging members A210 are respectively locked to the rear two sets of engaging hooks A151 (i.e., the second set of engaging hooks A1512 and the third set of engaging hooks A1513) which are arranged close to the rear end of the first positioning assembly A110. When the carrier body A200 is in the second use state relative to the positioning assembly A100, the two engaging members A210 are respectively locked to the front two sets of engaging hooks A151 (that is, the first set of engaging hooks A1511 and the third set of engaging hooks A1513) which are arranged close to the front end of the first positioning assembly A110. The others are similar to the above embodiment and are not described again.

[0212] Optionally, in another embodiment, taking the carrier body A200 provided with three engaging members A210 and the first connecting mechanism A150 including three sets of engaging hooks A151 as an example, the principle that the two engaging members A210 can be selectively locked by any two adjacent sets of engaging hooks A151 so that the carrier body A200 has a first use state and a second use state relative to the positioning assembly A100 will be briefly described.

[0213] In order to facilitate understanding of the engagement relationship between the three engaging members A210 and the three sets of engagement hooks A151, referring to FIG. 53 and FIG. 54, in the three engaging members A210, the engaging member A210 closer to the front end of the carrier body A200 is referred to as the first engaging member A2101, the engaging member A210 closer to the rear end of the carrier body A200 is referred to as the second engaging member A2102, and the engaging member A210 located between the two engaging members A210 is referred to as the third engaging member A2103. Similarly, with reference to a case where the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the first direction F1, the three sets of engaging hooks A151 on the first positioning assembly A110 are sequentially referred to as the first set of engaging hooks A1511, the second set of engaging hooks A1512, and the third set of engaging hooks A1513 in the Q3 direction. In other words, when the first positioning assembly A110 is oriented in the first direction F1, the first set of engaging hooks A1511 is located at the front in the first direction F1 (or Q1 direction), that is, closer to the support leg A162, and the third set of engaging hooks A1513 is located at the rear in the first direction F1 (or Q1 direction). In this embodiment, the carrier body A200 is engaged with the first positioning assembly A110 in the same direction. It should be noted that when the carrier body A200 is engaged with the first positioning assembly A110 in the same direction, the first set of engaging hooks A1511 may be considered closer to the front end of the carrier body A200, and the third set of engaging hooks A1513 may be considered closer to the rear end of the carrier body A200.

[0214] When the carrier body A200 is in the first use state relative to the positioning assembly A100, the two adjacent front engaging members A210 (that is, the first engaging member A2101 and the third engaging member A2103) or the two adjacent rear engaging members A210 (that is, the second engaging member A2102 and the third engaging member A2103) are respectively locked to the front two sets of engaging hooks A151 which are arranged close to the front end of the first positioning assembly A110. For example, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the third direction F3, and the front end of the carrier body A200 is oriented in the third direction F3, the first engaging member A2101 is locked to the first set of engaging hooks A1511, and the third engaging member A2103 is locked to the second set of engaging hooks A1512. The second engaging member A2102 may be locked to the third set of engaging hooks A1513 or be in a free state (that is, not locked by any one of the sets of engaging hooks A151). At this time, the front end of the carrier body A200 protrudes outward relative to the first positioning assembly A110 in the orientation (i.e., the third direction F3) of the carrier body A200 (see FIG. 54). For another example, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the third direction F3, and the front end of the carrier body A200 is oriented in the third direction F3, the third engaging member A2103 is locked to the first set of engaging hooks A1511, and the second engaging member A2102 is locked to the second set of engaging hooks A1512. At this time, the front end of the carrier body A200 similarly protrudes outward relative to the first positioning assembly A110 in the orientation (i.e., the third direction F3) of the carrier body A200. For another example, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the second direction F2 or the fourth direction F4, and the carrier body A200 is mounted in the same direction as the first positioning assembly A110, the two adjacent front engaging members A210 (that is, the first engaging member A2101 and the third engaging member A2103, or the third engaging member A2103 and the second engaging member A2102) are respectively locked to the front two sets of engaging hooks A151 which are arranged close to the front end of the first positioning assembly A110, and the front end of the carrier body A200 protrudes outward (not shown) in the orientation of the carrier body A200 (that is, the second direction F2 or the fourth direction F4) relative to the first positioning assembly A110.

[0215] When the carrier body A200 is in the second use state relative to the positioning assembly A100, the two adjacent front engaging members A210 (that is, the first engaging member A2101 and the third engaging member A2103) are respectively locked to the rear two sets of engaging hooks A151 (that is, the second set of engaging hooks A1512 and the third set of engaging hooks A1513) which are arranged close to the rear end of the first positioning assembly A110. For example, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the third direction F3, and the carrier body A200 is oriented in the third direction F3, the first engaging member A2101 is locked to the second set of engaging hooks A1512, and the third engaging member A2103 is locked to the third set of engaging hooks A1513. The second engaging member A2102 is in a free state, that is, not locked by any one of the sets of engaging hooks A151, and the first set of engaging hooks A1511 is not engaged with any one of the engaging members A210. At this time, the front end of the carrier body A200 retracts inward relative to the first positioning assembly A110 in the orientation (i.e., the third direction F3) of the carrier body A200 (see FIG. 53). For another example, when the first positioning assembly A110 is rotated relative to the second positioning assembly A120 to be oriented in the second direction F2 or the fourth direction F4, and the front end of the carrier body A200 is oriented to the second direction F2 or the fourth direction F4, the first engaging member A2101 is locked to the second set of engaging hooks A1512, and the third engaging member A2103 is locked to the third set of engaging hooks A1513. The second engaging member A2102 is in a free state, that is, not locked to any one of sets of engaging hooks A151. At this time, the front end of the carrier body A200 retracts inward in the orientation of the carrier body A200 (that is, the second direction F2 or the fourth direction F4) relative to the first positioning assembly A110 (see FIG. 50 and FIG. 51). In this way, the user can adjust the distance between the front end of the carrier body A200 and the vehicle interior wall (for example, a vehicle door, a backrest of a vehicle seat, and the like) by changing the corresponding engagement relationship between each engaging member A210 in the carrier body A200 and each set of engaging hooks A151 on the first positioning assembly A110.

[0216] It should be noted that the first connecting mechanism A150 may be applied to any of the above embodiments.

[0217] Referring to FIG. 55 to FIG. 57, which show perspective views of a carrier B1000 provided according to a fourth aspect of the present disclosure, the carrier B1000 includes a carrier body B300 and a positioning assembly B100 according to another embodiment of the present disclosure. The carrier body B300 and the positioning assembly B100 will be described together below along with the description of the carrier B1000.

[0218] FIG. 58 to FIG. 60 generally show the structure of the positioning assembly B100 in an embodiment of the fourth aspect of the present disclosure. The positioning assembly B100 is configured to mount the carrier body B300 (see FIG. 55 to FIG. 57) onto a vehicle seat (not shown). In an embodiment, the positioning assembly B100 may include a first positioning assembly B110 and a second positioning assembly B120. FIG. 61 and FIG. 62 show the structure of the second positioning assembly B120 in the positioning assembly B100 according to an embodiment of the present disclosure, and FIG. 63 shows the structure of the first positioning assembly B110 in the positioning assembly B100 according to an embodiment of the present disclosure. One of the first positioning assembly B110 and the second positioning assembly B120 is provided with a first rail B131 and a second rail B132 which are arranged crosswise, and the other of the first positioning assembly B110 and the second positioning assembly B120 is provided with a slide assembly. The slide assembly is configured to slide along the first rail B131 and the second rail B132. Specifically, the slide assembly includes a first slider B141 and a second slider B142. For example, as shown in FIG. 61 to FIG. 63, the first positioning assembly B110 is provided with the first slider B141 and the second slider B142, and the second positioning assembly B120 is provided with the first rail B131 and the second rail B132. Alternatively, in other unillustrated embodiments, the first positioning assembly B110 is provided with a first rail B131 and a second rail B132, and the second positioning assembly B120 is provided with a first slider B141 and a second slider B142. The first slider B141 is configured to slide along one of the first rail B131 or the second rail B132, and the second slider B142 is configured to slide along the other of the first rail B131 or the second rail B132. For example, as shown in FIG. 62 and FIG. 63, the first slider B141 is configured to slide along the second rail B132, and the second slider B142 is configured to slide along the first rail B131. Alternatively, in other unillustrated embodiments, the first slider B141 is configured to slide along the first rail B131 and the second slider B142 is configured to slide along the second rail B132. In this way, the first positioning assembly B110 can be rotated and moved simultaneously relative to the second positioning assembly B120 by means of sliding of the first slider B141 along one of the first rail B131 or the second rail B132 and sliding of the second slider B142 along the other of the first rail B131 or the second rail B132.

[0219] In an embodiment, as shown in FIG. 55 and FIG. 58, the first positioning assembly B110 is configured to be connected to the carrier body B300, and the second positioning assembly B120 is configured to be connected to the vehicle seat. Specifically, as shown in FIG. 57 to FIG. 59, the first positioning assembly B110 is provided with a first connecting mechanism B170 (for example, an engaging hook), which is mainly configured to be connected to an engaging member (not shown) at the bottom of the carrier body B300. The second positioning assembly B120 is provided with a seat connecting mechanism B180 (for example, an ISOFIX connector) and a support leg B190. The seat connecting mechanism B180 is configured to fasten the second positioning assembly B120 to a vehicle seat, and the support leg B190 is configured to abut against the floor inside the vehicle. In this way, when the positioning assembly B100 is mounted to the vehicle seat and the carrier body B300 is mounted to the positioning assembly B100, the orientation of the carrier body B300 may be changed by rotating the first positioning assembly B110, so that the carrier body B300 has different use modes. In some embodiments, the orientation of the carrier body B300 depends on the extension directions of the first rail B131 and the second rail B132. For example, when the first rail B131 extends in the first direction F1 or the third direction F3, and the second rail B132 extends in the second direction F2 or the fourth direction F4, the carrier body B300 has a use mode where the carrier body B300 is oriented in the first direction F1 or the third direction F3, and a use mode where the carrier body B300 is oriented in the second direction F2 or the fourth direction F4.

[0220] Referring to FIG. 61 and FIG. 62, in an embodiment, the intersection between the first rail B131 and the second rail B132 is referred to as the intersection center B133, and both the first rail B131 and the second rail B132 are divided by the intersection center B133 to form two rail sections. For example, the first rail B131 is divided by the intersection center B133 to form a first rail section B1311 and a second rail section B1312, and the second rail B132 is divided by the intersection center B133 to form a third rail section B1321 and a fourth rail section B1322. The first rail section B1311 extends from the intersection center B133 in the first direction F1, the second rail section B1312 extends from the intersection center B133 in the third direction F3, the third rail section B1321 extends from the intersection center B133 in the second direction F2, and the fourth rail section B1322 extends from the intersection center B133 in the fourth direction F4. The third direction F3 is parallel but opposite to the first direction F1, the fourth direction F4 is parallel but opposite to the second direction F2, and both the first direction F1 and the third direction F3 are intersected with the second direction F2 and the fourth direction F4. Specifically, both the first direction F1 and the third direction F3 are perpendicular to the second direction F2 and the fourth direction F4. When the positioning assembly B100 is fastened to the vehicle seat, the first direction F1 refers to the front of the normal traveling of the vehicle, that is, the direction toward the head of the vehicle, the second direction F2 refers to the left direction relative to the normal traveling of the vehicle, that is, the direction toward the left door of the vehicle, the third direction F3 refers to the rear of the normal traveling of the vehicle, that is, the direction toward the rear of the vehicle, and the fourth direction F4 refers the right direction relative to the normal traveling of the vehicle, that is, the direction toward the right door of the vehicle. In this way, the carrier body B300 can be rotated with the first positioning assembly B110 relative to the second positioning assembly B120 toward the front, rear, left, or right of the vehicle, so that the carrier body B300 has a forward mode, a backward mode, and a lateralward mode.

[0221] In this embodiment, the first positioning assembly B110 has a front end, a rear end, a left end, and a right end. In order to clearly understand the various ends of the first positioning assembly B110, taking the carrier body B300 mounted onto the first positioning assembly B110 as an example, the front-rear direction of the carrier body B300 is parallel to the front-rear direction of the first positioning assembly B110, and the left-right direction of the carrier body B300 is parallel to the leftright direction of the first positioning assembly B110. Specifically, when an infant or a child is placed in the carrier body B300, the front end of the first positioning assembly B110 is closer to the feet of the infant or the child than the rear end. Conversely, the rear end of the first positioning assembly B110 is closer to the head of the infant or the child than the front end, the left end of the first positioning assembly B110 is closer to the left hand of the infant or the child than the right end, and the right end of the first positioning assembly B110 is closer to the left hand of the infant or the child than the right end. When the first positioning assembly B110 is oriented in a certain direction, it means that the carrier body B300 is oriented in the same direction, and at the same time, the child placed in the carrier body B300 is oriented in the same direction. In order to intuitively understand the frontrear direction as well as the left-right direction of the carrier body B300 and the first positioning assembly B110, arrows Q1 and Q3 in the drawings schematically show the "front" and "rear" directions respectively, and arrows Q2 and Q4 in the drawings schematically show the "left" and "right" directions respectively. The Q1 direction is parallel and opposite to the Q3 direction, the Q2 direction is parallel and opposite to the Q4 direction. Specifically, the Q1 direction is perpendicular to the Q2 direction. These orientation terms are used only to make the description of the embodiments of the present disclosure clearer and are not used to inappropriately limit the scope of protection of the present disclosure. Therefore, the foregoing “the carrier body B300 can rotate with the first positioning assembly B110 relative to the second positioning assembly B120 to be oriented to the front, rear, left or right side of the car” means that the carrier body B300 and the front end of the first positioning assembly B110 can be oriented to the front, rear, left or right side of the vehicle.

[0222] Referring to FIG. 61 to FIG. 63, in an embodiment, a distance R1 between the intersection center B133 and each end of the first rail B131 is greater than or equal to the distance R3 between the first slider B141 and the second slider B142, that is, R1 > R3. A distance R2 between the intersection center B133 and each end of the second rail B132 is greater than or equal to the distance R3 between the first slider B141 and the second slider B142, that is, R2 > R3. Specifically, in this embodiment, R1 = R2 = R3. In other words, the lengths of the first rail section B1311, the second rail section B1312, the third rail section B1321, and the fourth rail section B1322 are equal, and the length of each rail section and the distance between the first slider B141 and the second slider B142 are equal. Of course, in other unillustrated embodiments, some of the rail sections may have a same length, and the other may have different lengths. Alternatively, all of the rail section may have different lengths.

[0223] Referring to FIG. 61 to FIG. 63, in this embodiment, taking a case where the second positioning assembly B120 is provided with the first rail B131 and the second rail B132 arranged crosswise, the first positioning assembly B110 is provided with the first slider B141 and the second slider B142 spaced from each other, the first slider B141 is slidable along the second rail B132 and the second slider B142 is slidable along the first rail B131 as an example, the structures, positions or the like of the first rail B131, the second rail B132, the first slider B141 and the second slider B142 will be briefly described, and the principle of the first positioning assembly B110 moving while rotating relative to the second positioning assembly B120 will also be briefly described.

[0224] In an embodiment, the first positioning assembly B110 has a substantially disc-shaped structure, the first slider B141 is arranged at the center of the first positioning assembly B110, and the second slider B142 is arranged offset from the center. Of course, in other embodiments, the first positioning assembly B110 may be in other symmetrical shapes (e.g., oval, rectangle, etc.), and the first slider B141 may be arranged at a geometric center of the first positioning assembly B110 or a position offset from the geometric center. Alternatively, the first positioning assembly B110 may also be asymmetric in shape. The position of the first slider B141 can be determined according to the shape of the first positioning assembly B110.

[0225] Referring to FIG. 55, FIG. 62 and FIG. 63, in some embodiments, when the carrier body B300 on the first positioning assembly B110 is oriented in the first direction F1, the position of the second slider B142 on the first positioning assembly B110 is located at the rear of the first slider B141 in the first direction F1. Specifically, in the process of rotating and moving the first positioning assembly B110 relative to the second positioning assembly B120, when the first slider B141 is located at the intersection center B133 and the second slider B142 is located at the second rail section B1312, the first positioning assembly B110 is oriented in the first direction F1 relative to the second positioning assembly B120. At this time, the carrier body B300 mounted on the first positioning assembly B110 can be regarded as being oriented toward the front of the vehicle. When the first slider B141 is located at the intersection center B133 and the second slider B142 is located at the first rail section B1311, the first positioning assembly B110 is oriented in the third direction F3 (that is, backwardly toward the first direction F1) relative to the second positioning assembly B120. At this time, the carrier body B300 mounted on the first positioning assembly B110 may be regarded as being oriented toward the rear of the vehicle. When the second slider B142 is located at the intersection center B133 and the first slider B141 is located at the third rail section B1321, the first positioning assembly B110 is oriented in the second direction F2 relative to the second positioning assembly B120. At this time, the carrier body B300 mounted on the first positioning assembly B110 may be regarded as being oriented toward the left side of the vehicle. When the second slider B142 is located at the intersection center B133 and the first slider B141 is located at the fourth rail section B1322, the first positioning assembly B110 is oriented in the fourth direction F4 relative to the second positioning assembly B120. At this time, the carrier body B300 mounted on the first positioning assembly B110 may be regarded as being oriented toward the right side of the vehicle (that is, backwardly toward the second direction F2). It can be seen that by changing the position of the first slider B141 in the second rail B132 and the position of the second slider B142 in the first rail B131, the orientation of the carrier body B300 on the first positioning assembly B110 can be changed, so that the carrier body B300 has a forward mode, a backward mode, and a lateralward mode. In other words, the “forward mode” refers to a state where the front end of the first positioning assembly B110 or the front end of the carrier body B300 is oriented toward the front of the vehicle, the “backward mode” refers to a state where the front end of the first positioning assembly B110 or the front end of the carrier body B300 is oriented toward the rear of the vehicle, and the “lateralward mode” refers to a state where the front end of the first positioning assembly B110 or the front end of the carrier body B300 is oriented toward the lateral side of the vehicle (i.e., the vehicle door).

[0226] The principle and the process of the first positioning assembly B110 rotating and moving simultaneously relative to the second positioning assembly B120 are briefly explained below in connection with FIG. 55, FIG. 56, and FIG. 60 to FIG. 63.

[0227] Similarly, in order to facilitate the following explanation, the intersection center B133 is regarded as a point M or a point N', the end of the first rail section B1311 away from the intersection center B133 is regarded as a point N'', the end of the second rail section B1312 away from the intersection center B133 is regarded as a point N, the end of the third rail section B1321 away from the intersection center B133 is regarded as a point M', and the end of the fourth rail section B1322 away from the intersection center B133 is regarded as a point M''.

[0228] When the first positioning assembly B110 is arranged to be oriented in the first direction F1 relative to the second positioning assembly B120, the first slider B141 is located at the intersection center B133, i.e., the point M, and the second slider B142 is located at the end of the second rail section B1312 away from the intersection center B133, i.e., the point N.

[0229] When the user needs to switch the first positioning assembly B110 from being oriented in the first direction F1 to being oriented in the second direction F2 relative to the second positioning assembly B120, that is, to switch the first positioning assembly B110 from facing the front to facing the left side relative to the second positioning assembly B120. The user can pull the first positioning assembly B110 or the carrier body B300 to the left, and meanwhile make the first positioning assembly B110 have a tendency to rotate in the counterclockwise direction while pulling. Thus, the first slider B141 can be moved from the point M to the point M’ in the second rail B132, while the second slider B142 is moved synchronously from the point N to the point N’ in the first rail B131. During this process, the first positioning assembly B110 is gradually rotated relative to the second positioning assembly B120, and is moved in a lateral direction (specifically, in the left direction) relative to the second positioning assembly B120. When the first slider B141 is moved to the point M', the second slider B142 is located at the point N', that is, at the intersection center B133. At this time, the first positioning assembly B110 is oriented in the second direction F2 relative to the second positioning assembly B120. It should be noted that, the process of switching the first positioning assembly B110 between be oriented in the first direction F1 and being oriented in the second direction F2 relative to the second positioning assembly B120 is reversible, that is, the orientation of the first positioning assembly B110 relative to the second positioning assembly B120 can be switched from the first direction F1 to the second direction F2, and can be also be switched from the second direction F2 to the first direction F1.

[0230] When the user needs to switch the first positioning assembly B110 from being oriented in the first direction F1 to being oriented in the fourth direction F4 relative to the second positioning assembly B120. The user can pull the first positioning assembly B110 or the carrier body B300 to the right, and meanwhile make the first positioning assembly B110 have a tendency to rotate in the clockwise direction while pulling. Thus, the first slider B141 can be moved from the point M to the point M'' in the second rail B132, while the second slider B142 is moved synchronously from the point N to the point N' in the first rail B131. During this process, the first positioning assembly B110 is gradually rotated relative to the second positioning assembly B120, and is moved in a lateral direction (specifically, in the right direction) relative to the second positioning assembly B120. When the first slider B141 is moved to the point M'', the second slider B142 is located at the point N', that is, at the intersection center B133. At this time, the first positioning assembly B110 is oriented in the fourth direction F4 relative to the second positioning assembly B120. Similarly, the process of switching the first positioning assembly B110 between being oriented in the first direction F1 and being oriented in the fourth direction F4 relative to the second positioning assembly B120 is reversible.

[0231] In addition, the user may also switch the first positioning assembly B110 relative to the second positioning assembly B120 from being oriented in the second direction F2 or the fourth direction F4 to being oriented in the third direction F3. The following will take the example of switching the first positioning assembly B110 from being oriented in the second direction F2 to being oriented in the third direction F3 relative to the second positioning assembly B120 for illustration. Specifically, the user can pull the first positioning assembly B110 or the carrier body B300, and meanwhile make the first positioning assembly B110 have a tendency to rotate in the counterclockwise direction while pulling. Thus, the second slider B142 can be moved from the point N' to the point N'' in the first rail B131, while the first slider B141 can be moved synchronously from the point M' to the point M in the second rail B132. During this process, the first positioning assembly B110 is gradually rotated relative to the second positioning assembly B120, and the rear end of the first positioning assembly B110 can move in the first direction F1 relative to the second positioning assembly B120. When the second slider B142 is moved to the point N'', the first slider B141 is located at the point M, that is, at the intersection center B133. At this time, the first positioning assembly B110 is oriented in the third direction F3 relative to the second positioning assembly B120. Similarly, the process of switching the first positioning assembly B110 between being oriented in the second direction F2 and being oriented in the third direction F3 relative to the second positioning assembly B120 is reversible.

[0232] Further, when the user needs to switch the first positioning assembly B110 from being oriented in the third direction F3 to being oriented in the fourth direction F4 relative to the second positioning assembly B120, the user can directly pull the first positioning assembly B110 or the carrier body B300, and make the first positioning assembly B110 have a tendency to rotate in the counterclockwise direction. As a result, the first slider B141 can be moved from the point M to the point M'' in the second rail B132, while the second slider B142 can be moved synchronously from the point N'' to the point N’ in the first rail B131. Similarly, when the user needs to switch the first positioning assembly B110 from being oriented in the fourth direction F4 to being oriented in the first direction F1 relative to the second positioning assembly B120, the user can directly pull the first positioning assembly B110 or the carrier body B300, and make the first positioning assembly B110 have a tendency to rotate in the counterclockwise direction. As a result, the second slider B142 can be moved from the point N' to the point N in the first rail B131, while the first slider B141 can be moved synchronously from the point M'' to the point M in the second rail B132.

[0233] In some other embodiments, when the carrier body B300 on the first positioning assembly B110 is oriented in the first direction F1, the position of the second slider B142 on the first positioning assembly B110 may also be located at the front, the left side, or the right side of the first slider B141 in the first direction F1. When the second slider B142 is located at the front of the first slider B141 in the first direction F1, the first positioning assembly B110 can be rotated and slid at the same time relative to the second positioning assembly B120 by means of the sliding of the first slider B141 within the second rail B132 and the sliding of the second slider B142 within the first rail B131. When the second slider B142 is located on the left or right side of the first slider B141 in the first direction F1, the first slider B141 is slidable in the first slide rail B131, and the second slider B142 is slidable in the second slide rail B132. In this way, the first positioning assembly B110 can be rotated and slid at the same time relative to the second positioning assembly B120.

[0234] Referring to FIG. 61 to FIG. 64, in an embodiment, the second positioning assembly B120 includes a second housing provided with a second mounting cavity B121 (or can also be referred to as a mounting cavity). Specifically, the second housing includes a second top cover B122 (or can also be referred to as a top cover) and a second bottom cover B123(or can also be referred to as a bottom cover), and the second top cover B122 and the second bottom cover B123 are connected up and down to form the second mounting cavity B121. The first slider B141 may include a first slide rod B1411 and a first sliding block B1412 connected to each other. The second slider B142 may include a second slide rod B1421 and a second sliding block B1422 connected to each other. In an embodiment, with reference to FIG. 63 and FIG. 64, the first rail B131 may include a first channel B1313 and a first slide groove B1314, and the second rail B132 may include a second channel B1323 and a second slide groove B1324. Both the first channel B1313 and the second channel B1323 are arranged on the lower surface of the second top cover B122, that is, a side of the second top cover B122 facing the second mounting cavity B121. The first channel B1313 and the second channel B1323 are intersected and communicate with each other, and both the first channel B1313 and the second channel B1323 communicate with the second mounting cavity B121. The first slide groove B1314 is arranged inside the first channel B1313, the second slide groove B1324 is arranged inside the second channel B1323, and both the first slide groove B1314 and the second slide groove B1324 have a through-groove structure. Specifically, when the first slider B141 is configured to slide along the second rail B132, it may be regarded that the first slide rod B1411 is slidable within the second slide groove B1324 while the first sliding block B1412 is slidable within the second channel B1323. When the second slider B142 is configured to slide along the first rail B131, it may be regarded that the second sliding block B1412 is slidable within the first slide groove B1314 while the second sliding block B1413 is slidable within the first channel B1313. More specifically, as shown in FIG. 64, the width of the first sliding block B1412 in the first direction F1 or the third direction F3 is greater than the width L2 of the second slide groove B1324, and the width of the second sliding block B1422 in the second direction F2 or the fourth direction F4 is greater than the width L3 of the first slide groove B1314. As a result, the first slider B141 is prevented from being detached from the second rail B132 when sliding, and the second slider B142 is prevented from being detached from the first rail B131 when sliding, thereby preventing the first positioning assembly B110 from being detached from the second positioning assembly B120 when being rotated and moved relative to the second positioning assembly B120. Further, the length of the first sliding block B1412 in the extending direction of the second rail B132 is greater than the width W3 of the first channel B1313, and the length of the second sliding block B1422 in the extending direction of the first rail B131 is greater than the width W2 of the second channel B1323. Thus, the first slider B141 is restricted to slide within the second rail B132, and the second slider B142 is restricted to slide within the first rail B131, avoiding a case where the first slider B141 enters the first rail B131, and the second slider B142 enters the second rail B132. Of course, in other embodiments, the first rail B131 and the second rail B132 may have a recessed groove structure provided on the upper surface of the second top cover B122. The first slider B141 may slide in one of the first rail B131 and the second rail B132 through the first sliding block B1412, and the second slider B142 may slide in the other of the first rail B131 and the second rail B132 through the second sliding block B1422. In an embodiment, both the first slider B141 and the second slider B142 may have an integrally formed structure, that is, the first sliding block B1412 and the first slide rod B1411 are integrally formed, and forms an integrative structure, and the second sliding block B1422 and the second slide rod B1421 are integrally formed, , and forms an integrative structure. Of course, in other embodiments, the first sliding block B1412 and the first slide rod B1411 may be different components. The first sliding block B1412 may be connected to the first slide rod B1411 by welding, riveting, or the like to form the first slider B141. The second sliding block B1422 and the second slide rod B1421 may also be different components. The second sliding block B1422 may be connected to the second slide rod B1421 by welding, riveting, or the like to form the second slider B142.

[0235] It should be noted that the above term “through groove structure” refers to a groove that communicates with the second mounting cavity B121, and the term “recessed groove structure” refers to a groove that does not communicate with the second mounting cavity B121.

[0236] Referring to FIG. 55 to FIG. 57, the carrier body B300 may be, for example, a seat, a basket, a sleeping box, or the like. As can be seen from the above description, when the carrier B1000 is mounted inside the vehicle, the carrier body B300 is rotatable under the action of the first positioning assembly B110 to be oriented in any one of the first direction F1, the second direction F2, the third direction F3, or the fourth direction F4, so that the carrier body B300 has four modes, that is, a forward mode, a leftward mode, a backward mode, and a rightward mode. Specifically, when it is necessary to place the child into or take the child out of the carrier body B300, the carrier body B300 may be set to the leftward mode or the rightward mode, thereby facilitating the holding of the child. When the vehicle is required to travel, the carrier body B300 may be set to the forward mode or the backward mode, which improves the safety of traveling for the child. Specifically, in order to further consider the safety of child when riding in the vehicle, especially for a younger child (e.g., less than 15 months old) or a child who is shorter in height or lighter in weight, the carrier body B300 should not be in the forward mode, i.e., the carrier body B300 should not be oriented toward the head of the vehicle (i.e., the first direction F1). However, in actual use, the user may misadjust the orientation of the first positioning assembly B110 relative to the second positioning assembly B120, thereby misusing the forward mode or the backward mode of the carrier body B300, which may bring safety hazard to the child riding in the vehicle.

[0237] In order to avoid the problem that the user misuses use modes of the carrier body B300, the positioning assembly B100 in an embodiment of the fourth aspect of the present disclosure may further includes an anti-misuse mechanism B150. The anti-misuse mechanism B150 is movably arranged on the first positioning assembly B110 or the second positioning assembly B120 for selectively allowing or restricting movement of the slide assembly (the first slider B141 or the second slider B142), thereby selectively restricting the angle of rotation of the first positioning assembly B110 relative to the second positioning assembly B120. For example, the anti-misuse mechanism B150 may restrict movement of the first slider B141, so as to restrict rotation of the first positioning assembly B110 relative to the second positioning assembly B120 to be oriented in the second direction F2 or the fourth direction F4. Alternatively, the anti-misuse mechanism B150 may restrict movement of the second slider B142, so as to restrict rotation of the first positioning assembly B110 relative to the second positioning assembly B120 to be oriented in the first direction F1 or the third direction F3.

[0238] Referring to FIG. 65 to FIG. 67, in an embodiment, the anti-misuse mechanism B150 includes a blocking member B151. The blocking member B151 is movably arranged on the first positioning assembly B110 or the second positioning assembly B120 to be able to protrude into or exit the first rail B131 or the second rail B132 to selectively allow or restrict movement of the first slider B141 or the second slider B142. Specifically, the blocking member B151 is movably arranged and has a first position and a second position. In this embodiment, taking a case where the anti-misuse mechanism B150 is movably arranged on the second positioning assembly B120 and is configured to restrict the movement of the second slider B142 as an example, the specific structure and operation principle of the anti-misuse mechanism B150 will be explained.

[0239] Specifically, in an embodiment, the blocking member B151 is movably arranged in the second mounting cavity B121 of the second positioning assembly B120. When the blocking member B151 is at the first position (see FIG. 66), the blocking member B151 at least partially protrudes into the first rail B131 to block the movement of the second slider B142 within the first rail B131, thereby restricting the rotation of the first positioning assembly B110 relative to the second positioning assembly B120 to be oriented in the forward or rearward direction of the vehicle. Specifically, when the first rail B131 is viewed from the intersection center B133, the first rail section B1311 extends in the first direction F1 and the second rail section B1312 extends in the third direction F3. As a result, when the blocking member B151 is at the first position, it can be regarded as being able to restrict the rotation of the first positioning assembly B110 relative to the second positioning assembly B120 to be oriented in the first direction F1 or the third direction F3. When the blocking member B151 is at the second position (see FIG. 65), the blocking member B151 exits the first rail B131. In this way, the first positioning assembly B110 can rotate freely relative to the second positioning assembly B120.

[0240] In conjunction with FIG. 62, FIG. 63, FIG. 65 and FIG. 66, in an embodiment, the blocking member B151 is movably arranged on the moving path of the second slider B142 in the second rail section B1312, that is, the blocking member B151 is movably arranged in a region corresponding to the second rail section B1312 in the second mounting cavity B121. Specifically, when the second slider B142 is moved from the intersection center B133 toward the second rail section B1312 and the blocking member B151 is at the first position, the blocking member B151 at least partially protrudes into the second rail section B1312 to restrict the movement of the second slider B142 within the second rail section B1312, thereby restricting the rotation of the first positioning assembly B110 relative to the second positioning assembly B120 to be oriented in the first direction F1. In other words, when the first positioning assembly B110 is switched from being oriented in the second direction F2 or the fourth direction F4 to being oriented in the first direction F1 relative to the second positioning assembly B120, if the blocking member B151 is at the first position, the blocking member B151 resists the movement of the second slider B142 in the direction away from the intersection center B133 within the second rail section B1312, thereby restricting the rotation of the first positioning assembly B110 to being oriented in the first direction F1, and the carrier body B300 cannot be used in the mode where the carrier body B300 is oriented in the first direction F1. In this way, the user can be alerted to avoid misuse of the forward mode of the carrier body B300.

[0241] Referring to FIG. 66, in an embodiment, the anti-misuse mechanism B150 further includes a first reset member B153. The first reset member B153 abuts against the blocking member B151 to provide an elastic restoring force for the blocking member B151 to drive the blocking member B151 to be constantly kept at the first position. In this embodiment, the blocking member B151 is arranged at an end of the second rail section B1312 away from the intersection center B133. Specifically, with reference to FIG. 62, FIG. 63, FIG. 65 and FIG. 66, when the first positioning assembly B110 is oriented in the first direction F1 relative to the second positioning assembly B120, the first slider B141 is located at the intersection center B133, and the second slider B142 is located at the end of the second rail section B1312 away from the intersection center B133. At this time, the blocking member B151 is located directly below the second slider B142. More specifically, the blocking member B151 is located directly below the second sliding block B1422, and the blocking member B151 is pressed by the second slider B142 and is thus kept at the second position (see FIG. 65). At this time, the first positioning assembly B110 may be freely switched from being oriented in the first direction F1 to being oriented in other directions (e.g., the second direction F2) relative to the second positioning assembly B120. More specifically, when the first positioning assembly B110 is switched from being oriented in the first direction F1 to the other direction relative to the second positioning assembly B120, the second sliding block B1422 is moved with the second slide rod B1421 and be misaligned with the blocking member B151. Specifically, when the second sliding block B1422 is misaligned with the blocking member B151, the blocking member B151 is no longer pressed by the second sliding block B1422. At this time, the blocking member B151 is switched to the first position under the action of the restoring force of the first reset member B153 to protrude into the second rail section B1312, so that the second sliding block B1422 can be prevented from moving to the end of the second rail section B1312 away from the intersection center B133, thereby restricting the rotation of the first positioning assembly B110 from being oriented in the other direction to being oriented in the first direction F1. It can be seen that the above-described blocking member B151 can allow the first positioning assembly B110 to be switched from being oriented in the first direction F1 to being oriented in the other direction, while restricting the first positioning assembly B110 to be switched from being oriented in the other direction to being oriented in the first direction F1.

[0242] In some other embodiments, when the first positioning assembly B110 is rotated to be oriented in the first direction F1 relative to the second positioning assembly B120, the first slider B141 is located at the intersection center B133, the second slider B142 is located at an end of the second rail section B1312 away from the intersection center B133, and the blocking member B151 is misaligned with the second sliding block B1422. Specifically, the blocking member B151 is located at the front of the second sliding block B1422 in the first direction F1, and at this time, the blocking member B151 does not abut against the second sliding block B1422, and the blocking member B151 is kept at the first position under the resetting force of the first resetting member B153. In this way, the blocking member B151 resists the movement of the second slider B142 in the direction close to the intersection center B133 in the second rail section B1312, thereby restricting the rotation of the first positioning assembly B110 relative to the second positioning assembly B120, and thus the first positioning assembly B110 cannot be directly switched to be oriented in the second direction F2 or the fourth direction F4.

[0243] Of course, in some other embodiments, a side of the blocking member B151 away from the intersection center B133 is provided with a guide slope (not shown). In this way, when the first positioning assembly B110 is oriented in the first direction F1, even if the blocking member B151 is at the first position, the second sliding block B1422 can push the blocking member B151 when sliding toward the intersection center B133 under the action of the guide slope, so that the blocking member B151 exits the second rail section B1312, finally allowing the first positioning assembly B110 to rotate from being oriented in the first direction F1 to being oriented in the second direction F2 or the fourth direction F4 or the like relative to the second positioning assembly B120. Since the guide slope is provided on the side of the blocking member B151 away from the intersection center B133, the first positioning assembly B110 can be switched from being oriented in the first direction F1 to being oriented in the other direction, and the first positioning assembly B110 can be restricted from being switched from being oriented in the other direction (e.g., the second direction F2, the fourth direction F4) to being oriented in the first direction F1. As a result, misuse of the forward mode of the carrier body B300 can be avoided. Of course, in other embodiments, when the first positioning assembly B110 is oriented in the first direction F1 relative to the second positioning assembly B120, the second sliding block B1422 may also be provided with a guide slope on the side close to the intersection center B133. In this way, the above effect can also be realized.

[0244] Referring to FIG. 66 to FIG. 69, in an embodiment, the anti-misuse mechanism B150 further includes an unlock assembly B152. The unlock assembly B152 is arranged on the first positioning assembly B110 or the second positioning assembly B120 and is drivingly connected to the blocking member B151 for driving the blocking member B151 to exist the first rail B131 or the second rail B132, thereby allowing movement of the first slider B141 or the second slider B142. Specifically, in this embodiment, the unlock assembly B152 is arranged on the second positioning assembly B120 and is drivingly connected to the blocking member B151 for driving the blocking member B151 to be switched from the first position to the second position. In this way, the first positioning assembly B110 may be freely switched to be oriented in the directions relative to the second positioning assembly B120.

[0245] Still referring to FIG. 66 to FIG. 69, in an embodiment, the unlock assembly B152 may include an operating member B1521 and a traction member B1522. The operating member B1521 is movably arranged on the second positioning assembly B120 and has a locked position and an unlocked position. The traction member B1522 is connected between the operating member B1521 and the blocking member B151. Specifically, as shown in FIG. 68, the second top cover B122 is provided with a hole B1222, and the operating member B1521 is movably arranged in the second mounting cavity B121. The operating portion of the operating member B1521 protrudes from the second mounting cavity B121 through the hole B1222 and protrudes from the surface of the second top cover B122, so that the user can operate the operating member B1521 conveniently. As shown in FIG. 67, FIG. 69 and FIG. 70, the traction member B1522 is, for example, a traction wire, which is arranged inside the second mounting cavity B121 and connected to the operating member B1521 and the blocking member B151. When the operating member B1521 is moved and switched from the locked position to the unlocked position, the operating member B1521 drives the blocking member B151 to exit the first rail B131 through the traction member B1522, that is, the blocking member B151 is driven to be switched from the first position to the second position (switching from FIG. 66 to FIG. 65).

[0246] Alternatively, in some embodiments, the operating member B1521 is provided with a prompt sign that may be configured to directly alert the user whether the first positioning assembly B110 should be oriented in the first direction F1. The prompt sign may alert the user by prompt words or patterns or symbols or signals or alarms. For example, the prompt words of the prompt sign may include “>15 months” and “<15 months”. When the operating member B1521 is at the unlocked position, the prompt words of “>15 months” are displayed to alert the user that the first positioning assembly B110 can be oriented in the first direction F1, and in this case, a child older than 15 months is allowed to be placed in the carrier body B300 in the forward mode. When the operating member B1521 is at the locked position, the prompt words of “<15 months” are displayed to alert the user that the first positioning assembly B110 cannot be oriented in the first direction F1, and the carrier body B300 cannot be used in the forward mode.

[0247] Referring to FIG. 65 to FIG. 67 and FIG. 70, in an embodiment, the anti-misuse mechanism B150 further includes a fixing base B154. The fixing base B154 is arranged in the second mounting cavity B121, and has a cavity B1541, and a first opening B1542 and an operation hole B1543 that communicate with the cavity B1541. The first opening B1542 is arranged opposite the operation hole B1543 and facing the first rail B131. The first reset member B153 is arranged in the cavity B1541 and abuts against the blocking member B151, that is, the blocking member B151 is movably arranged in the cavity B1541, and the first reset member B153 is arranged in the cavity B1541 and abuts between the blocking member B151 and the fixing base B154. The traction member B1522 is connected to the blocking member B151 through the operation hole B1543. When the blocking member B151 is at the first position, the blocking member B151 at least partially passes through the first opening B1542 and protrudes into the first rail B131. Specifically, as shown in FIG. 67 and FIG. 70, the side wall of the fixing base B154 is provided with a guide groove B1544 in the shape of a strip, and the extending direction of the guide groove B1544 is the same as the moving direction of the blocking member B151. The blocking member B151 is provided with a connecting shaft B156 extending into the guide groove B1544 and slidably engaged with the guide groove B1544, so that the blocking member B151 can slidably protrude into the first rail B131 or exit the first rail B131 along the guide groove B1544 of the fixing base B154 to restrict or allow the first positioning assembly B110 to be oriented in the first direction F1.

[0248] Referring to FIG. 65 and FIG. 66, in an embodiment, “the blocking member B151 at least partially passes through the first opening B1542 and protrudes into the first rail B131” specifically means that the blocking member B151 extends into the first channel B1313 of the second rail section B1312 so that at least a portion of the blocking member B151 is located on the movement path of the second sliding block B1422 to block the rotation of the first positioning assembly B110 to be oriented in the first direction F1.

[0249] In order to keep the blocking member B151 at the second position stably, in an embodiment, as shown in FIG. 67 to FIG. 69, the anti-misuse mechanism B150 further includes a state locking assembly B155. The state locking assembly B155 is provided on the second positioning assembly B120 and is configured to lock the operating member B1521 at the locked position or the unlocked position. By locking the operating member B1521 at the unlocked position, the traction member B1522 can be kept in the tensioned state, and finally the blocking member B151 can be kept at the second position.

[0250] Referring to FIG. 68 to FIG. 72, in an embodiment, the state locking assembly B155 may include a locking member B1551. The locking member B1551 is movably arranged on the second positioning assembly B120, and specifically, is movably arranged within the second mounting cavity B121 and has a third position and a fourth position. Specifically, the operating member B1521 is provided with the limiting portion B15211. When the locking member B1551 is at the third position, the locking member B1551 abuts against the limiting portion B15211 to be capable of restricting the operating member B1521 from being switched between the unlocked position and the locked position, that is, the locking member B1551 is able to lock the operating member B1521 at the unlocked position or the locked position, thereby enabling the blocking member B151 to be kept at the second position or the first position. When the locking member B1551 is at the fourth position, the locking member B1551 is separated from the limiting portion B15211. As a result, the operating member B1521 is free to be switched between the locked position and the unlocked position. It should be noted that the moving direction of the operating member B1521 intersects with the moving direction of the locking member B1551. Specifically, in this embodiment, the wall surface of the locking member B1551 in contact with the limiting portion B15211 is an arcuate structure, and the wall surface of the limiting portion B15211 in contact with the locking member B1551 is also an arcuate structure. In this way, the operating member B1521 can be switched between the locked position and the unlocked position, and the smoothness during switching can be improved.

[0251] Specifically, in this embodiment, as shown in FIG. 68 to FIG. 72, the state locking assembly B155 may further include a second reset member B1552 abutting between the second positioning assembly B120 and the locking member B1551 to apply an elastic restoring force to the locking member B1551 to drive the locking member B1551 to be constantly kept at the third position. When it is necessary to switch the blocking member B151 from the first position to the second position, the user may operate (e.g., push or pull) the operating member B1521 to move it from the locking position to the unlocked position. During this process, the operating member B1521 can push the locking member B1551 against the elastic force of the second reset member B1552, so that the locking member B1551 is switched from the third position to the fourth position. In addition, during the pushing, since the wall surface of the locking member B1551 in contact with the limiting portion B15211 is the arcuate structure, and the wall surface of the limiting portion B15211 in contact with the locking member B1551 is also the arcuate structure, the limiting portion B15211 can pass over the blocking of the locking member B1551, so that the operating member B1521 can be switched to the unlocked position. After the limiting portion B15211 passes over the locking member B1551, the locking member B1551 is automatically switched from the fourth position to the third position under the elastic restoring force of the second reset member B1552, that is, the locking member B1551 is switched from one side of the limiting portion B15211 to the other side of the limiting portion B15211, so as to be able to abut against the operating member B1521 (that is, the other side of the limiting portion B15211) and lock the operating member B1521 at the unlocked position. Similarly, when it is necessary to switch the blocking member B151 from the second position to the first position, the user may operate the operating member B1521 again to move it from the unlocked position to the locked position. During this process, the operating member B1521 can also push the locking member B1551 against the elastic force of the second reset member B1552, so that the locking member B1551 is switched from the third position to the fourth position again. Similarly, since the wall surface of the locking member B1551 in contact with the limiting portion B15211 and the wall surface of the limiting portion B15211 in contact with the locking member B1551 are both arcuate structures, limiting portion B15211 can pass over the blocking of the locking member B1551, so that the operating member B1521 can be switched to the locked position. After the limiting portion B15211 passes over the locking member B1551, the locking member B1551 is automatically switched from the fourth position to the third position under the elastic reset force of the second reset member B1552, so that it can abut against the operating member B1521 again and lock the operating member B1521 at the locked position.

[0252] The operation principle and process of the anti-misuse mechanism B150 for blocking the movement of the second slider B142 will be briefly described below with reference to the diagrams.

[0253] Referring to FIG. 65 to FIG. 69, when the operating member B1521 is at the unlocked position, the traction member B1522 is tensioned so as to pull the blocking member B151 to exit the second rail section B1312 of the first rail B131. The locking member B1551 can be kept at the third position by the action of the second reset member B1552, so that the locking member B1551 can abut against the limiting portion B15211 of the operating member B1521 to keep the operating member B1521 at the unlocked position. As such, the carrier body B300 can rotate with the first positioning assembly B110 relative to the second positioning assembly B120 to be oriented in the first direction F1 (with reference to FIG. 55 and FIG. 63).

[0254] When it is necessary to prevent the user from switching the first positioning assembly B110 from any one of the second direction F2, the third direction F3, or the fourth direction F4 to the first direction F1 by mistake, as shown in FIG. 67 to FIG. 69, th...

Claims

1. A positioning assembly for mounting a carrier body to a vehicle seat, the positioning assembly comprising:a first positioning assembly provided with a first slider and a second slider; anda second positioning assembly provided with a first rail and a second rail;wherein the first rail extends in a first direction or a third direction, the second rail extends in a second direction or a fourth direction, the first rail and the second rail are intersected to form an intersection center, and when the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located on a side of the first slider in the first direction.

2. The positioning assembly according to claim 1, wherein:the first slider is configured to slide along the second rail, and the second slider is configured to slide along the first rail; andwhen the first positioning assembly is oriented in the second direction or the fourth direction relative to the second positioning assembly, the first positioning assembly is retracted in the second direction or the fourth direction relative to the second positioning assembly.

3. The positioning assembly according to claim 1, wherein:the first rail is divided by the intersection center to form a first rail section and a second rail section, and the second rail is divided by the intersection center to form a third rail section and a fourth rail section; andwhen the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located at the first rail section.

4. The positioning assembly according to claim 3, wherein:the first rail section extends from the intersection center in the first direction, the second rail section extends from the intersection center in the third direction, the third rail section extends from the intersection center in the second direction, and the fourth rail section extends from the intersection center in the fourth direction; andthe first direction and the third direction are parallel and opposite to each other, the second direction and the fourth direction are parallel and opposite to each other, and the first direction is intersected with the second direction.

5. The positioning assembly according to claim 3, wherein:the first slider is configured to slide along the second rail, and the second slider is configured to slide along the first rail;when the first positioning assembly is oriented in the second direction relative to the second positioning assembly, the first slider is located at the fourth rail section, and the second slider is located at the intersection center; orwhen the first positioning assembly is oriented in the fourth direction relative to the second positioning assembly, the first slider is located at the third rail section, and the second slider is located at the intersection center.

6. The positioning assembly according to any one of claims 1 to 5, wherein the first positioning assembly has a rotation axis, the first slider is arranged coaxially with the rotation axis, and the second slider is arranged offset from the rotation axis.

7. A positioning assembly for mounting a carrier body to a vehicle seat, the positioning assembly comprising:a first positioning assembly configured to be connected to the carrier body; anda second positioning assembly configured to be connected to the vehicle seat, one of the first positioning assembly and the second positioning assembly being provided with a first rail and a second rail, and the other of the first positioning assembly and the second positioning assembly being provided with a slide assembly;wherein the first rail is intersected with the second rail, the slide assembly is rotatable within the first rail and slidable within the second rail, and the first positioning assembly is rotatable relative to the second positioning assembly by rotation of the slide assembly in the first rail and slidable relative to the second positioning assembly by sliding the slide assembly in the second rail.

8. The positioning assembly according to claim 7, wherein the first positioning assembly is provided with the slide assembly, the second positioning assembly is provided with the first rail andthe second rail, the first rail communicates with the second rail at an intersection therebetween, and the slide assembly is capable of sliding continuously between the first rail and the second rail.

9. The positioning assembly according to claim 8, wherein the first rail includes a first channel having a circular structure, the second rail includes a second channel having a strip structure, the first channel communicates with the second channel at the intersection, and the second rail extends in or away from the second direction.

10. The positioning assembly according to claim 9, wherein the slide assembly includes a sliding block connected to the first positioning assembly, the sliding block being rotatable within the first channel and slidable within the second channel.

11. The positioning assembly according to claim 10, wherein:the second channel is divided by the first channel to form a third rail section and a fourth rail section, the third rail section and the fourth rail section communicate with the first channel respectively, the third rail section extends from the first channel in a second direction, and the fourth rail section extends from the first channel in a direction opposite to the second direction; andwhen the first positioning assembly is rotated relative to the second positioning assembly to be oriented in the second direction or in the direction opposite to the second direction, the first positioning assembly can protrude outward or retract relative to the second positioning assembly.

12. The positioning assembly according to claim 10, wherein:the second positioning assembly includes a second housing having a second mounting cavity;the first rail further includes a first slide groove, the second rail further includes a second slide groove, the first channel and the second channel are both arranged on a side of the second housing facing the second mounting cavity, the first slide groove is arranged on the second housing and located on an inner side of the first channel, the second slide groove is arranged on the second housing and located on an inner side of the second channel, and the second slide groove communicates with the first slide groove and extends in an extending direction of the second channel; andthe slide assembly further includes a slide rod connected to the first positioning assembly, and connected to the sliding block through the first or second slide groove.

13. The positioning assembly according to claim 8, wherein:the first rail includes a first channel having a ring structure, and the second rail includes a second channel having a strip structure, the second channel passing through the first channel and communicating with the channel at the first intersection; andthe slide assembly includes two sliding blocks, the two sliding blocks are rotatable along the first channel to rotate the first positioning assembly relative to the second positioning assembly, and the two sliding blocks are synchronously slidable within the second channel to slide the first positioning assembly relative to the second positioning assembly.

14. The positioning assembly according to claim 13, wherein:the second positioning assembly includes a second housing having a second mounting cavity;the first rail further includes a first slide groove, the second rail further includes a second slide groove, the first channel and the second channel are both arranged on a side of the second housing facing the second mounting cavity, the first slide groove is arranged on the second housing and located within the first channel, the second slide groove is arranged on the second housing and located within the second channel, and the second slide groove communicates with the first slide groove and extends in an extending direction of the second channel; andthe slide assembly further includes two slide rods, the two slide rods being connected to the first positioning assembly, and connected to the two sliding blocks through the first slide groove or the second slide groove respectively.

15. A positioning assembly for mounting a carrier body to a vehicle seat, the positioning assembly comprising:a first positioning assembly configured to be connected to the carrier body;a second positioning assembly configured to be connected to the vehicle seat, one of the first positioning assembly and the second positioning assembly being provided with a first rail and a second rail, the other of the first positioning assembly and the second positioning assembly being provided with a slide assembly, the slide assembly being configured to slide along the first rail and the second rail to displace the first positioning assembly relative to the second positioning assembly while rotating relative to the second positioning assembly; andan anti-misuse mechanism movably arranged on the first positioning assembly or the second positioning assembly for selectively allowing or restricting movement of the slide assembly, therebyselectively restricting an angle of rotation of the first positioning assembly relative to the second positioning assembly.

16. The positioning assembly according to claim 15, wherein the anti-misuse mechanism includes a blocking member movably arranged on the first positioning assembly or the second positioning assembly to be capable of protruding into or retracting from the first rail or the second rail to selectively allow or restrict movement of the slide assembly.

17. The positioning assembly according to claim 16, wherein the slide assembly includes a first slider and a second slider, the first slider being configured to slide along one of the first rail and the second rail, and the second slider being configured to slide along the other of the first rail and the second rail.

18. The positioning assembly according to claim 17, wherein:the first positioning assembly is provided with the first slider and the second slider, the second positioning assembly is provided with the first rail and the second rail, and the first rail and the second rail form an intersection center at an intersection therebetween;the first rail extends in a first direction or a third direction, and the second rail extends in a second direction or a fourth direction, the first direction being parallel and opposite to the third direction, the second direction being parallel and opposite to the fourth direction, and the first direction and the second direction being intersected; andthe first slider is configured to slide along the second rail, and the second slider is configured to slide along the first rail.

19. The positioning assembly according to claim 18, wherein:when the first slider is located at the intersection center and the second slider is located at the first rail, the first positioning assembly is rotated relative to the second positioning assembly to be oriented in an extension direction of the first rail; and / orwhen the second slider is located at the intersection center and the first slider is located at the second rail, the first positioning assembly is rotated relative to the second positioning assembly to be oriented in an extension direction of the second rail.

20. The positioning assembly according to claim 19, wherein the blocking member is movably arranged in a path of movement of the first slider within the second rail to restrict the first positioning assembly from rotating relative to the second positioning assembly to be oriented in the second direction or the fourth direction.

21. The positioning assembly according to claim 19, wherein the blocking member is movably arranged in a path of movement of the second slider within the first rail to restrict the first positioning assembly from rotating relative to the second positioning assembly to be oriented in the first direction or the third direction.

22. The positioning assembly according to claim 21, wherein:the blocking member has a first position and a second position;when the blocking member is at the first position, the blocking member at least partially protrudes into the first rail to block movement of the second slider within the first rail, thereby restricting the first positioning assembly from rotating relative to the second positioning assembly to be oriented in the first direction or the third direction; andwhen the blocking member is at the second position, the blocking member exits the first rail.

23. The positioning assembly according to claim 22, wherein:the first rail is divided by the intersection center to form a first rail section and a second rail section, the first rail section extending from the intersection center in the first direction, and the second rail section extending from the intersection center in the third direction;when the first positioning assembly is oriented in the first direction relative to the second positioning assembly, the first slider is located at the intersection center and the second slider is located at the second rail section; andthe blocking member is movably arranged in a path of movement of the second slider within the second rail section.

24. The positioning assembly according to claim 23, wherein when the second slider moves from the intersection center toward the second rail section, and the blocking member is at the first position, the blocking member at least partially protrudes into the second rail section to restrict the movement of the second slider within the second rail section, thereby restricting the first positioning assemblyfrom rotating relative to the second positioning assembly to be oriented in the first direction.

25. The positioning assembly according to any one of claims 15 to 24, wherein the anti-misuse mechanism further includes an unlock assembly arranged on the first positioning assembly or the second positioning assembly, the unlock assembly being drivingly connected to the blocking member for driving the blocking member to exit the first rail or the second rail to allow movement of the slide assembly.

26. The positioning assembly according to claim 25, wherein:the unlock assembly includes an operating member and a traction member, the operating member being movably arranged on the first positioning assembly or the second positioning assembly and having a locked position and an unlocked position, the traction member being connected between the operating member and the blocking member, and when the operating member is switched from the locked position to the unlocked position, the operating member drives the blocking member to exit the first rail or the second rail through the traction member; and / orthe anti-misuse mechanism further includes a first reset member configured to apply an elastic restoring force to the blocking member, so that the blocking member can protrude into the first rail or the second rail to restrict movement of the first slider or the second slider.

27. The positioning assembly according to claim 26, wherein the anti-misuse mechanism further includes a state locking assembly arranged on the second positioning assembly and configured to lock the operating member at the locked position or the unlocked position.

28. The positioning assembly according to claim 27, wherein:the operating member is provided with a limiting portion;the state locking assembly includes a locking member and a second reset member, the locking member being movably arranged on the first positioning assembly or the second positioning assembly and having a third position and a fourth position;when the locking member is at the third position, the locking member abuts against the limiting portion to be able to restrict switching of the operating member between the locked position and the unlocked position;when the locking member is at the fourth position, the locking member is separated from thelimiting portion; andthe second reset member is configured to apply an elastic restoring force to the locking member so that the locking member remains at the third position.

29. The positioning assembly according to any one of claims 15 to 24, further comprising an engagement indication mechanism arranged on the first positioning assembly or the second positioning assembly and configured to indicate whether the first positioning assembly is rotated relative to the second positioning assembly to be oriented in an extension direction of the first rail or the second rail.

30. A positioning assembly for mounting a carrier body to a vehicle seat, the positioning assembly comprising:a first positioning assembly configured to be connected to the carrier body;a second positioning assembly configured to be connected to the vehicle seat, one of the first positioning assembly and the second positioning assembly being provided with a first rail and a second rail, the other of the first positioning assembly and the second positioning assembly being provided with a first slider and a second slider, the first slider being configured to slide along one of the first rail and the second rail, and the second slider being configured to slide along the other of the first rail and the second rail to displace the first positioning assembly relative to the second positioning assembly while rotating relative to the second positioning assembly; andan engagement indication mechanism arranged on the first positioning assembly or the second positioning assembly and configured to indicate whether the first positioning assembly is rotated relative to the second positioning assembly to be oriented in an extension direction of the first rail or the second rail.

31. The positioning assembly according to claim 30, wherein the engagement indication mechanism includes:a movable member having an indication area movably arranged on the first positioning assembly or the second positioning assembly so that the indication area has a first indication position and a second indication position; anda driving member rotatably arranged on the first positioning assembly or the second positioning assembly, and drivingly connected to the movable member, the driving member being configured todrivingly cooperate with the first slider or the second slider to drive the movable member to move to change a position of the indication area.

32. The positioning assembly according to claim 31, wherein the driving member has a first abutting portion and a pushing portion, the pushing portion being pivotably connected to the movable member, and the first abutting portion being configured to drivingly cooperate with the first slider or the second slider so that the driving member is pivoted to drive the movable member to move.

33. The positioning assembly according to claim 32, wherein the first slider and / or the second slider is provided with a second abutting portion, the second abutting portion being formed with a pushing slope adapted to drivingly cooperate with the first abutting portion to drive the driving member to rotate.

34. The positioning assembly according to claim 31, wherein:the first positioning assembly is provided with the first slider and the second slider, the second positioning assembly is provided with the first rail and the second rail, the first rail and the second rail form an intersection center at an intersection therebetween, the movable member is movably arranged within a second mounting cavity of the positioning assembly, and the driving member is located below and opposite the intersection center;the first slider is provided with the second abutting portion, and when the first slider is located at the intersection center, the second abutting portion abuts against the driving member to rotate the driving member; orthe second slider is provided with the second abutting portion, and when the second slider is located at the intersection center, the second abutting portion abuts against the driving member to rotate the driving member.

35. The positioning assembly according to claim 31, wherein the indication area is provided with an indication color block, the first positioning assembly or the second positioning assembly is provided with an indication window, and the indication area is switchable between the first indication position and the second indication position so that the indication color block can selectively face the indication window.

Images