Career

Abstract

To provide a carrier and a wheeled transport device to which the carrier is attached. [Solution] The present invention relates to a carrier. The carrier includes a mounting portion and a bracket device. The mounting portion includes a bottom portion, and a mounting space is formed at the bottom portion. The bracket device includes a first bracket and a second bracket. The first bracket is coupled to the mounting portion and is provided on the periphery of the mounting portion. The second bracket is connected to the first bracket and coupled to the mounting portion. The second bracket extends from one side of the periphery of the mounting portion through the bottom portion of the mounting portion to the other side of the periphery of the mounting portion. The present disclosure also relates to an engagement base assembly, a support bracket, and a wheeled transportation device.

Description

[Technical field]

[0001] The present invention relates to a carrier and a wheeled transport device to which the carrier is attached, and more particularly to a carrier for transporting an infant or animal, a wheeled transport device to which the carrier is attached, and an engagement base assembly for attaching the carrier to the wheeled transport device. [Background technology]

[0002] When a user needs to travel with an infant or animal, the user can use a hand-held carrier to carry the infant or animal. Summary of the Invention [Problem to be solved by the invention]

[0003] To facilitate easy and labor-saving transportation of the hand-held carrier, the carrier can be attached to a mobile device for movement therewith. [Means for solving the problem]

[0004] The present disclosure relates to a carrier. The carrier includes a mounting portion and a bracket device. The mounting portion includes a bottom portion, and a mounting space is formed in the bottom portion. The bracket device includes a first bracket and a second bracket, the first bracket is coupled to the mounting portion and is provided around the periphery of the mounting portion, and the second bracket is connected to the first bracket and coupled to the mounting portion. The second bracket extends from one side of the periphery of the mounting portion to the other side of the periphery of the mounting portion via the bottom portion of the mounting portion.

[0005] In one embodiment, the bracket device further includes a third bracket and a fixing assembly, the third bracket is located on one side of the bottom of the mounting portion and is used to fix the carrier to a moving device, and the fixing assembly connects the mounting portion and the third bracket. A lower surface of the bottom portion constitutes a bottom surface of the mounting portion, and the third bracket is provided at a distance from the bottom surface of the mounting portion via the fixing assembly.

[0006] In one embodiment, the second bracket is a U-shaped structural member, the second bracket having two vertical portions and a lateral portion, the two vertical portions being substantially vertically connected to the first bracket, and the lateral portion being substantially vertically connected to the fastening assembly.

[0007] In one embodiment, the mounting portion is a case, and the case further includes a peripheral wall connected to the bottom portion, the bottom portion and the peripheral wall forming the mounting space.

[0008] In one embodiment, the fastening assembly includes a first connecting bracket, the first connecting bracket connecting the second bracket and the third bracket.

[0009] In one embodiment, the fixing assembly further includes a bracket connecting member and a through groove at the bottom of the case, the through groove being located at a position corresponding to the first connecting bracket, and the bracket connecting member is at least partially located within the through groove and abuts against the second bracket.

[0010] In one embodiment, the fixing assembly further includes a locking set, the locking set including a locking fixing member and a locking member, the locking member being provided on the bracket connecting member, the locking fixing member passing through the third bracket, the first connecting bracket, the second bracket and the bracket connecting member and being locked to the locking member.

[0011] In one embodiment, the fixing assembly further includes a guide member, which is connected to the third bracket and located at a position corresponding to the first connecting bracket, and is used to guide an engagement structure between the third bracket and the moving device.

[0012] In one embodiment, the fixing assembly further includes a locking set, the locking set including a locking fixing member and a locking member, the locking fixing member being provided on the bracket connecting member, the locking fixing member passing through the guide member, the third bracket, the first connecting bracket, the second bracket and the bracket connecting member, and being mutually locked to the locking member.

[0013] In one embodiment, the fastening assembly further includes a second connecting bracket, the second connecting bracket connecting the case and the third bracket.

[0014] In one embodiment, the fixing assembly further includes a bracket connecting member having a through groove at the bottom of the case, the second connecting bracket is connected to the third bracket and at least a portion of the bracket connecting member is located within the through groove, and the bracket connecting member is at least a portion of the bracket connecting member is located within the second connecting bracket and abuts against the second connecting bracket.

[0015] In one embodiment, the fixing assembly further includes a locking set, the locking set including a locking fixing member and a locking member, the locking member being provided on the bracket connecting member, and the locking fixing member passing through the third bracket, the second connecting bracket and the bracket connecting member and being locked to each other on the locking member.

[0016] In one embodiment, the bracket connecting member includes a recess and the locking member is received within the recess and does not protrude into the bracket connecting member.

[0017] In one embodiment, a recess is formed in the bottom of the case, and a portion of the bracket connecting member is accommodated in the recess and does not protrude from the bottom of the case.

[0018] In one embodiment, the third bracket includes an engagement member that cooperates with a corresponding engagement structure on the moving device, and a structural reinforcement member is connected at each end to the engagement member and is located at an approximately midpoint along the longitudinal axis of the engagement member.

[0019] In one embodiment, the third bracket further includes another structural reinforcement member extending along the lateral axis of the case, connected to the engaging member, and provided on at least one side of the engaging member.

[0020] In one embodiment, the engagement member is an annular structural member, the center of the engagement member substantially coinciding with the center of the first bracket.

[0021] In one embodiment, the third bracket includes two other structural reinforcement members, one on each side of the engagement member.

[0022] In one embodiment, a central portion of the structural reinforcement member is bent toward a bottom portion of the placement portion and abuts against the bottom portion of the placement portion.

[0023] In one embodiment, a box belt with a T-shaped structure is provided at the bottom of the case, the box belt has a vertical segment and a horizontal segment, the horizontal segment constitutes a first end of the box belt and is fixed through a corresponding through-slot at the bottom of the case, one end of the vertical segment is connected to the horizontal segment, and the other end is a free end and constitutes a third end of the box belt.

[0024] In one embodiment, the case is further provided with a collision prevention device, the collision prevention device being provided on at least one side of the case and positioned inside the peripheral wall of the case.

[0025] In one embodiment, a plurality of ventilation holes are provided in the peripheral wall of the case.

[0026] In one embodiment, a cushion is attached to the support portion, the cushion including a support layer, a flexible layer and a covering layer, the support layer and the flexible layer being laminated and encapsulated in the covering layer.

[0027] The present disclosure relates to a carrier. The carrier includes a mounting portion and a bracket device, the mounting portion having a bottom portion, a mounting space formed in the bottom portion, a lower surface of the bottom portion forming a bottom surface of the mounting portion, and the bracket device configured to support the mounting portion. The bracket device includes a third bracket and a fixing assembly, the third bracket is located on one side of the bottom portion of the mounting portion and is used to fix the carrier to a moving device, and the fixing assembly is connected between the mounting portion and the third bracket, so that the third bracket is provided at a distance from the bottom surface of the mounting portion via the fixing assembly.

[0028] In one embodiment, the placement portion is a case, the case including a body and a bottom support member, the body removably covering the bottom support member, and the case is disposed on the bracket device via the bottom support member.

[0029] In one embodiment, the body is removably connected to the bottom support member via at least one connection assembly.

[0030] In one embodiment, the at least one connection assembly includes a first connection part and a second connection part that are detachably connected to each other, the first connection part being provided on the main body and the second connection part being provided on the bottom support member.

[0031] In one embodiment, the body comprises a first support member and a second support member, the first support member and the second support member being detachably connected to each other.

[0032] In one embodiment, the first support member and the second support member are connected to each other by a fastener.

[0033] In one embodiment, after the first support member and the second support member are detached and separated from each other, the first support member and / or the second support member can each be switched from an deployed state to a stored state by at least one connection structure.

[0034] In one embodiment, the first support member is a lateral support member forming at least portions of two side surfaces of the body, and the second support member is an upper support member forming at least portions of the top surface and the other two side surfaces of the body.

[0035] In one embodiment, the upper support member comprises a first sheet-like member, a second sheet-like member and a third sheet-like member, and the first sheet-like member, the second sheet-like member and the third sheet-like member are connected by a connecting structure and can be folded relative to one another.

[0036] In one embodiment, the upper support member is integrally formed with a connecting structure.

[0037] In one embodiment, after the upper support member is separated from the side support members, the upper support member can be switched from the deployed state to the stored state by the connection structure.

[0038] In one embodiment, the side support members include a first sub-support member and a second sub-support member, the first sub-support member and the second sub-support member being independent of one another and each having a substantially horizontally extending bottom edge and an arched top edge, the bottom edges of the first sub-support member and the second sub-support member being releasably connected to corresponding edges of the bottom support member, and the top edges of the first sub-support member and the second sub-support member being releasably connected to opposite sides of the arched upper support member.

[0039] In one embodiment, the first sub-support member and the second sub-support member are connected to each other via a first connection assembly and removably connected to the bottom support member, and after the side support members are separated from the upper support member, the first sub-support member and the second sub-support member can be folded relative to each other, and the side support members are switched from the deployed state to the stowed state.

[0040] In one embodiment, a first sub-support member, a second sub-support member, and a connecting sheet connected between the first sub-support member and the second sub-support member are integrally formed to constitute the side support member, the bottom edges of the first sub-support member and the second sub-support member and the bottom edge of the connecting sheet are connected as a whole in the circumferential direction, the upper edges of the first sub-support member and the second sub-support member are formed in an arch shape and connected as a whole via the upper edge of the connecting sheet, and the side support member is removably connected between the upper support member and the bottom support member.

[0041] In one embodiment, after the lateral support member is separated from the upper support member, the first sub-support member and the second sub-support member can be folded relative to each other and the lateral support member switches from the deployed state to the stowed state.

[0042] In one embodiment, the main body has an openable window fabric on either side.

[0043] In one embodiment, the window covering is a flexible fabric with a bracket on top of the window covering to keep the window covering open.

[0044] In one embodiment, a handle is provided on the top surface of the body.

[0045] In one embodiment, the body is provided with a downwardly extending extension at its bottom edge, the extension being inserted into a correspondingly provided insertion connection recess in the bottom support member.

[0046] The present disclosure relates to a carrier. The carrier includes a case and a ceiling assembly, the case forming a mounting space, and the ceiling assembly is provided in the case of the carrier or covers at least a portion of the seat fabric of the case. The ceiling assembly includes a ceiling and a ceiling connection assembly, the ceiling connection assembly being provided between the ceiling and the case or between the ceiling and the seat fabric and separably connecting the ceiling and the case or the seat fabric. The ceiling connection assembly includes a ceiling frame and an unlocking operation member, the ceiling frame being connected to the periphery of the ceiling to support the ceiling and being detachably provided around the opening of the case, and the unlocking operation member being provided in the ceiling frame or sleeved in a bracket device outside the case and being operated to move from a locked position to an unlocked position to unlock the ceiling assembly from the case.

[0047] In one embodiment, the case further includes a bracket device supporting the case and including a first bracket, the first bracket being disposed around an opening of the case, and the ceiling connection assembly is detachably connected to the first bracket.

[0048] In one embodiment, the ceiling connection assembly includes a ceiling locking device, at least a portion of which is mounted on the ceiling frame and which cooperates with a corresponding ceiling locking portion of the carrier to lock the ceiling assembly above the case. The ceiling locking device includes a locking member attached to the ceiling frame and adapted to lock or unlock the ceiling frame to or from the case by engaging or disengaging with the ceiling locking portion through movement relative to the ceiling frame.

[0049] In one embodiment, the movement of the locking member relative to the ceiling frame comprises the locking member pivoting about at least one pivot point on the ceiling frame to engage or disengage with the ceiling lock portion.

[0050] In one embodiment, the ceiling lock device further includes an unlocking operation member that is operably acted on the locking member. When the unlocking operation member is located at the locked position, the locking member is engaged with the ceiling locking portion, and when the unlocking operation member is operated to the unlocked position, the locking member is disengaged from the ceiling locking portion.

[0051] In one embodiment, the locking member is pivotally attached to the ceiling frame about a pivot point and is pivotally attached to the unlocking member about another pivot point different from the pivot point. The unlocking member is provided on the ceiling frame and can move between the locking position and the unlocking position relative to the ceiling frame, and the locking member can be pivoted relative to the ceiling frame about the pivot point.

[0052] In one embodiment, the locking member has a snap hook extending toward the ceiling locking portion, and the ceiling locking portion includes an engagement pin provided corresponding to the snap hook. When the unlocking operation member is in the locked position, the snap hook engages with the engagement pin, and when the unlocking operation member is operated to push and pivot the locking member to be in the unlocked position, the snap hook disengages from the engagement pin.

[0053] In one embodiment, the ceiling locking device further includes an elastic reset member connected between the unlocking operation member and the ceiling frame, which always provides a force to cause the unlocking operation member to be in or return to the locked position.

[0054] In one embodiment, the unlocking operation member is provided on the ceiling locking portion and can move between the locked position and the unlocked position relative to the ceiling locking portion. The locking member is connected to the ceiling frame and extends from the ceiling frame to a bracket device of the carrier. The ceiling locking portion is connected to the unlocking operation member and can be engaged with or disengaged from the locking member by moving in accordance with the operation of the unlocking operation member.

[0055] In one embodiment, the locking member is a first sheet-like member, and the ceiling locking portion includes a second sheet-like member. An insertion space for accommodating the first sheet-like member is formed between the second sheet-like member and the unlocking operation member. An engagement hole is opened in one of the first sheet-like member and the second sheet-like member, and an engagement protrusion that matches the engagement hole is provided in the other of the first sheet-like member and the second sheet-like member. When the unlocking operation member is in the locked position, the engagement hole engages with the engagement protrusion, and when the unlocking operation member is operated to push the second sheet-like member away from the first sheet-like member and be in the unlocked position, the engagement hole disengages from the engagement protrusion.

[0056] In one embodiment, the ceiling lock device further includes an elastic reset member connected between the unlocking operation member and one of the second sheet-like member and the carrier, and always providing a force to cause the unlocking operation member to be in or return to the locked position.

[0057] In one embodiment, the ceiling lock is provided on a bracket device of the carrier.

[0058] In one embodiment, the ceiling frame includes at least one pivot segment and a segment adjustment structure, and the segment adjustment structure is used when the at least one pivot segment is at a different angle relative to the case.

[0059] In one embodiment, the ceiling frame has a three-stage folding structure.

[0060] In one embodiment, the ceiling frame includes a first pivot segment, a second pivot segment and two lock segments, both ends of the first pivot segment are pivotally connected to one ends of the two lock segments via first pivot portions, and both ends of the second pivot segment are pivotally connected to the other ends of the two lock segments via second pivot portions, and two of the ceiling lock devices are provided on the two lock segments, respectively, so that the two lock segments can be locked to bracket devices of the carrier.

[0061] In one embodiment, the first pivot portion and the second pivot portion each include gear teeth, and the first pivot segment and the second pivot segment can each be at a different angle relative to the locking segment.

[0062] In one embodiment, a reset spring is provided at each of the first pivotal portion and the second pivotal portion, which constantly pushes the first pivotal portion and the second pivotal portion in the direction in which the roof is deployed, thereby providing an auxiliary force to the deployment process of the roof.

[0063] In one embodiment, a connection structure is provided between the ceiling and a case of the carrier, the connection structure including connecting pieces and cooperating connecting pieces, the connecting pieces being provided on opposite sides of the case and the cooperating connecting pieces being provided on corresponding sides of the ceiling and mated to the connecting pieces to keep the ceiling closed.

[0064] The present disclosure also provides an engagement base assembly. The engagement base assembly includes a sheet plate and a locking mechanism, the sheet plate being used to place an object thereon, and the locking mechanism being attached to the sheet plate and used to lock and unlock the object. The locking mechanism includes at least one unlocking operation member and at least one locking member, the at least one unlocking operation member being slidable between a locked position and an unlocked position relative to the sheet plate, and the at least one locking member being slidably provided on the sheet plate. When the unlocking operation member is in the locked position, the locking member can lock the object. When the unlocking operation member is operated to move from the locked position to the unlocked position, the locking member moves in accordance with the movement of the unlocking operation member to unlock the object.

[0065] In one embodiment, the at least one locking member includes a first locking member and a second locking member, the first locking member and the second locking member being connected by an interlocking device, and the first locking member and the second locking member moving synchronously in the same direction as the unlocking operation member or in the opposite direction to unlock the object.

[0066] In one embodiment, the first locking member and the second locking member are provided on the same side of the seat plate.

[0067] In one embodiment, in response to the first locking member and the second locking member moving in the same direction, the first locking member is fixedly connected to the second locking member, and an elastic device is provided between at least one of the first locking member and the second locking member and the seat plate, which always provides a force to position the unlocking operation member in the locked position.

[0068] In one embodiment, an elastic device is provided between the first locking member and the second locking member in response to the first locking member and the second locking member moving in opposite directions, which always provides a force to position the unlocking operation member at the locked position.

[0069] In one embodiment, the linkage is connected between the first locking member and the second locking member such that the first locking member and the second locking member move in opposite directions, and the movement direction of a central connection point of the linkage is perpendicular to the movement direction of the first locking member and the second locking member.

[0070] In one embodiment, the interlocking device includes a first rod, a second rod, a third rod, and a fourth rod, the first rod, the second rod, the third rod, and the fourth rod are connected two by two to form four connection points, one of the four connection points being a fixed connection point, which is connected to the first locking member and the second locking member by a rod fixed to the seat plate and connected to the central connection point opposite to the fixed connection point among the four connection points.

[0071] In one embodiment, the at least one locking member further includes a third locking member and a fourth locking member, the third locking member and the fourth locking member being provided on the same other side of the seat plate and having configurations corresponding to the first locking member and the second locking member, respectively.

[0072] In one embodiment, the first locking member and the second locking member are provided on opposite sides of the seat plate.

[0073] In one embodiment, the linkage includes a linkage member, the linkage member being a link.

[0074] In one embodiment, the first locking member is fixedly connected to the second locking member, and an elastic device is provided between at least one of the first locking member and the second locking member and the seat plate, and has a tendency to position the unlocking operation member in the locked position in response to the first locking member and the second locking member moving in the same direction.

[0075] In one embodiment, an elastic device is provided between at least one of the first locking member and the second locking member and the seat plate in response to the first locking member and the second locking member moving in opposite directions, and has a tendency to position the unlocking operation member in the locked position.

[0076] In one embodiment, both ends of the interlocking member are fixedly connected to the first locking member and the second locking member, respectively, in response to the first locking member and the second locking member moving in the same direction.

[0077] In one embodiment, both ends of the interlocking member are connected to the first locking member and the second locking member, respectively, in response to the first locking member and the second locking member moving in opposite directions.

[0078] In one embodiment, the linkage includes a linkage member, the linkage member being a traction member. The first locking member and the second locking member move in opposite directions.

[0079] In one embodiment, the at least one locking member further includes a third locking member and a fourth locking member, both of which are provided on opposite sides of the seat plate and have configurations corresponding to the first locking member and the second locking member, respectively.

[0080] In one embodiment, the interlocking device includes a further interlocking member connecting the third locking member and the fourth locking member.

[0081] In one embodiment, when the first locking member and the second locking member move in opposite directions, the interlocking member is disposed across the other interlocking member.

[0082] In one embodiment, the interlocking member and the further interlocking member are connected at their intersections.

[0083] In one embodiment, an angle between the interlocking member and the another interlocking member when the unlocking member is in the locked position is larger than an angle between the two when the unlocking member is in the unlocked position.

[0084] In one embodiment, when the first locking member and the second locking member move in opposite directions, an elastic device is provided between two locking members located on the same side among the first locking member, the second locking member, the third locking member and the fourth locking member, and always provides a force to position the unlocking operation member in the locked position.

[0085] In one embodiment, when the unlocking member is in the locked position, at least a portion of the unlocking member protrudes from above the seat plate, and a drive pin is fixedly provided on the unlocking member. The locking member is slidably connected to the unlocking member and has an oblique hole at one end close to the unlocking member. When the unlocking member is operated, the drive pin can slide relative to the oblique hole as the unlocking member moves, moving the locking member from the locked position to the unlocked position.

[0086] In one embodiment, the engagement base assembly further includes a retention mechanism for retaining the unlocking operating member in the unlocked position.

[0087] In one embodiment, the holding mechanism includes a touch button and a reset member, the touch button is provided within the sheet plate and can move vertically relative to the sheet plate, and at least a portion of the touch button can protrude from above the sheet plate, a buckle portion is provided movably below the touch button, and a reset member is provided between the touch button and a lower case of the sheet plate and always provides a force that protrudes the touch button to the sheet plate. When the object is placed on the sheet plate and the touch button is pressed, and the unlocking operation member is operated, a holding hook of the locking member engages the buckle portion to hold the unlocking operation member in the unlocking position.

[0088] In one embodiment, the retention mechanism further includes an elastic member provided between the touch button and the buckle portion, and cooperates with movement of the buckle portion relative to the touch button to engage the retention hook with the buckle portion.

[0089] The present disclosure also provides a support bracket for supporting a seat plate, the support bracket being provided on a longitudinal side of the seat plate. The support bracket includes a longitudinal rod connected in a triangular structure, a connecting rod, and a shock absorbing rod. The longitudinal rod is provided below the seat plate and fixedly connected to the seat plate. A first end of the connecting rod is fixedly connected to a first end of the longitudinal rod, and a second end of the connecting rod is fixedly connected to a first end of the shock absorbing rod. A second end of the shock absorbing rod is connected to a second end of the longitudinal rod, and the shock absorbing rod has elasticity to provide shock absorbing support to the seat plate.

[0090] In one embodiment, two support brackets are provided, one on each longitudinal side of the seat plate, and each support bracket includes a longitudinal rod connected in a triangular structure, a connecting rod, and a shock absorbing rod.

[0091] In one embodiment, the shock absorbing rod is a compression spring, a hydraulic rod, or a hollow rod.

[0092] In one embodiment, each of the support brackets further includes a first connecting part and a second connecting part, one ends of the first connecting part and the second connecting part are pivotally connected to the second end of the connecting rod, and the other ends of the first connecting part and the second connecting part and the first end of the connecting rod are pivotally connected to different foldable positions of the frame relative to each other.

[0093] In one embodiment, two of the support brackets are provided on either side of the seat plate in the lateral direction, and a horizontal rod is connected between the vertical rods of the two support brackets and / or a horizontal rod is connected between the connecting rods of the two support brackets.

[0094] In one embodiment, the longitudinal rod includes a position limiting finger disposed on a first end of the longitudinal rod proximal to the connecting rod and used to limit the angle at which the longitudinal rod can pivot downward relative to the connecting rod.

[0095] In one embodiment, the longitudinal rod includes a position limiting bump provided at a first end of the longitudinal rod and used to limit the longitudinal rod from pivoting upward relative to the connecting rod. In one embodiment, the position limiting bump is provided at a first end of the longitudinal rod on a side away from the connecting rod.

[0096] In one embodiment, the support bracket further includes a position limiting member, a first end of the position limiting member slidably connected to the longitudinal rod and a second end of the position limiting member pivotally connected to a second end of the connecting rod.

[0097] The present disclosure also provides a wheeled mobility device, comprising a frame, an engagement base assembly of the above embodiment, and a carrier, the engagement base assembly being attached to the frame, the carrier being fixed to the seat plate by the locking mechanism, and the seat plate being located at the bottom of the carrier.

[0098] The present disclosure also provides a wheeled mobility device, the wheeled mobility device including a frame, an engagement base assembly, and a carrier, the engagement base assembly being attached to the frame, and the carrier being capable of being fixed to a seat plate via the engagement base assembly, the engagement base assembly being located at a bottom of the carrier, and having at least a plurality of engagement point locations on the engagement base assembly.

[0099] In one embodiment, the locations of the engagement points are symmetrically disposed on the mating base assembly along a pair of longitudinal centerlines of the mating base assembly.

[0100] In one embodiment, the plurality of engagement point locations are four engagement point locations, located centrally symmetrically on the engagement base assembly.

[0101] In one embodiment, the carrier includes a case and a bracket device, the case having a bottom and a peripheral wall connected to the bottom, the bracket device includes a third bracket and a fixing assembly, the third bracket is located on one side of the bottom of the case and includes an engagement member cooperating with a corresponding engagement structure of the moving device to form the location of the engagement point, and the fixing assembly is connected to the third bracket and includes at least two guide members provided in a plane surrounded by the engagement member.

[0102] In one embodiment, the carrier is a long-sized carrier, and the locations of the engagement points are located between the at least two guide members.

[0103] In one embodiment, the third bracket further includes a structural reinforcement member, the structural reinforcement member being disposed between the fixing assembly, and the locations of the plurality of engagement points are located between the guide member and the structural reinforcement member.

[0104] In one embodiment, the carrier is a short-sized carrier, and the locations of the engagement points are located outside the at least two guide members.

[0105] In one embodiment, the engagement base assembly includes a locking member for locking the carrier to the seat plate, the locking member having a locking portion at one end and an opening in the seat plate at a position corresponding to the locking portion, such that the locking portion can extend through the opening in the seat plate to form the location of the engagement point.

[0106] In one embodiment, the seat plate has a raised upper case structure on the front side, a recess is provided at a location of the raised upper case structure where the locking portion is located, and an opening in the seat plate is provided in the recess.

[0107] In one embodiment, a slope is provided on the raised upper case structure of the seat plate, the slope being located above the recess and on the side opposite the opening of the recess, and is used to guide the locking of the carrier with the engagement base assembly.

[0108] In one embodiment, the seat plate has a first extension portion and / or a second extension portion, the first extension portion extending from one end of the seat plate near the rear wheel and the second extension portion extending from one end of the seat plate near the frame and the front wheel.

[0109] In one embodiment, the engagement base assembly includes a support structure that supports the engagement base assembly and is pivotally connected to a frame, such that the engagement base assembly can pivot in conjunction with folding of the frame via the support structure.

[0110] In one embodiment, the frame includes a front support bar connected to the front wheels, a rear support bar connected to the rear wheels, and an upper support bar connected to a handrail, and one end of the front support bar, one end of the rear support bar, and one end of the upper support bar are pivotally connected to each other at a pivot portion.

[0111] In one embodiment, when the frame is folded, the front support bar, the rear support bar and the upper support bar are brought closer together and the support structure allows the end of the engagement base assembly proximate to the rear wheel to pivot on the pivot portion.

[0112] In one embodiment, the support structure includes a first coupling, a second coupling, and an interlocking member, one end of the first coupling pivotally connected to the front support bar at a first pivot point, a second coupling pivotally connected to the other end of the first coupling at a second pivot point and to the rear support bar at a third pivot point, one end of the interlocking member pivotally connected to the upper support bar at a fourth pivot point, and the other end of the interlocking member pivotally connected to the second coupling at a fifth pivot point, causing the second coupling to pivot when the frame folds, the fifth pivot point being between the second pivot point and the third pivot point.

[0113] In one embodiment, when the frame is unfolded, the first coupling and the second coupling are arranged horizontally and the first pivot point, the second pivot point, the third pivot point and the fifth pivot point are arranged substantially in a straight line.

[0114] In one embodiment, the engagement base assembly is attached to the second coupling.

[0115] In one embodiment, the second coupling includes a sheet plate support member and an auxiliary support member, the sheet plate support member has a U-shaped structure and is used to support and fix the engagement base assembly, the auxiliary support member is provided outside the sheet plate support member and connected to the sheet plate support member, and the sheet plate support member can be moved synchronously with the auxiliary support member. The other end of the first coupling is inserted between the sheet plate support member and the auxiliary support member, and the other end of the interlocking member is inserted between the sheet plate support member and the auxiliary support member.

[0116] In one embodiment, the second coupling is a seat plate support member, which is a U-shaped structure and is used to secure the engagement base assembly.

[0117] In one embodiment, the interlocking member has a generally S-shaped structure, the S-shaped structure having, in order, a first segment, a second segment and a third segment, the first segment being substantially coincident with the upper support bar when the frame is deployed.

[0118] In one embodiment, the second segment is approximately perpendicular to the first segment and the third segment is approximately perpendicular to the second segment.

[0119] The drawings are included to provide a further understanding of the disclosure, are incorporated in the specification, illustrate examples of the disclosure, and together with the description, constitute a part of the specification, used to explain the concepts of the disclosure. [Brief description of the drawings]

[0120] [Figure 1A] Figures 1A to 1D show a schematic diagram of a wheeled transportation device according to an embodiment of the first aspect of the present disclosure, with the carrier case removed in Figures 1C and 1D to show the connection between the carrier's bracket device and the locking mechanism. [Figure 1B] Figures 1A to 1D show a schematic diagram of a wheeled transportation device according to an embodiment of the first aspect of the present disclosure, with the carrier case removed in Figures 1C and 1D to show the connection between the carrier's bracket device and the locking mechanism. [Figure 1C] Figures 1A to 1D show a schematic diagram of a wheeled transportation device according to an embodiment of the first aspect of the present disclosure, with the carrier case removed in Figures 1C and 1D to show the connection between the carrier's bracket device and the locking mechanism. [Figure 1D] Figures 1A to 1D show a schematic diagram of a wheeled transportation device according to an embodiment of the first aspect of the present disclosure, with the carrier case removed in Figures 1C and 1D to show the connection between the carrier's bracket device and the locking mechanism. [Diagram 2]2 illustrates a schematic diagram of a frame according to an embodiment of the first aspect of the present disclosure. [Figure 3A] 1 illustrates a schematic diagram of an engagement base assembly according to an embodiment of the first aspect of the present disclosure; [Figure 3B] 1 illustrates a schematic diagram of an engagement base assembly according to an embodiment of the first aspect of the present disclosure; [Figure 3C] 1 illustrates a schematic diagram of an engagement base assembly according to an embodiment of the first aspect of the present disclosure; [Figure 4] 1 shows a schematic representation of a support structure according to a first aspect of the present disclosure; [Figure 5A] 13A and 13B illustrate diagrammatically a support structure according to another embodiment of the first aspect of the present disclosure; [Figure 5B] 13A and 13B illustrate diagrammatically a support structure according to another embodiment of the first aspect of the present disclosure; [Figure 6A] 1 illustrates a schematic diagram of a frame having an engagement base assembly mounted thereon according to one embodiment of the first aspect of the present disclosure; [Figure 6B] 1 illustrates a schematic diagram of a frame having an engagement base assembly mounted thereon according to one embodiment of the first aspect of the present disclosure; [Figure 6C] 1 illustrates a schematic diagram of a frame having an engagement base assembly mounted thereon according to one embodiment of the first aspect of the present disclosure; [Figure 7] 1 shows diagrammatically a frame to which a support structure according to a first aspect of the present disclosure is attached; [Figure 8A] 1A and 1B illustrate schematic diagrams of a frame with an attached engagement base assembly, with the frame undergoing folding, according to one embodiment of the first aspect of the present disclosure; [Figure 8B] 1A and 1B illustrate schematic diagrams of a frame with an attached engagement base assembly, with the frame undergoing folding, according to one embodiment of the first aspect of the present disclosure; [Figure 9A] 1 illustrates a schematic diagram of a frame with an attached engagement base assembly with the frame in a fully folded state according to one embodiment of the first aspect of the present disclosure; [Figure 9B]1 illustrates a schematic diagram of a frame with an attached engagement base assembly with the frame in a fully folded state according to one embodiment of the first aspect of the present disclosure; [Figure 10A] 10A and 10B are schematic diagrams of an engagement base assembly according to an embodiment of the first aspect of the present disclosure, with the seat plate upper case removed in order to show the locking mechanism. [Figure 10B] 10A and 10B are schematic diagrams of an engagement base assembly according to an embodiment of the first aspect of the present disclosure, with the seat plate upper case removed in order to show the locking mechanism. [Figure 11A] 1 illustrates diagrammatically a locking mechanism according to an embodiment of the first aspect of the present disclosure; [Figure 11B] 1 illustrates diagrammatically a locking mechanism according to an embodiment of the first aspect of the present disclosure; [Figure 12] FIG. 2 is a schematic diagram of a wheeled transportation device according to an embodiment of the first aspect of the present disclosure, with the carrier case removed to show the connection between the carrier bracket device and the locking mechanism. [Figure 13A] 1 shows a schematic diagram of a locking mechanism and a carrier disposed thereon according to an embodiment of the first aspect of the present disclosure; [Figure 13B] 1 shows a schematic diagram of a locking mechanism and a carrier disposed thereon according to an embodiment of the first aspect of the present disclosure; [Figure 14A] FIG. 14A shows a schematic diagram of an engagement base assembly according to another embodiment of the first aspect of the present disclosure, with the upper case of the seat plate removed to illustrate the locking mechanism; [Figure 14B] FIG. 14A shows a schematic diagram of an engagement base assembly according to another embodiment of the first aspect of the present disclosure, with the upper case of the seat plate removed to illustrate the locking mechanism; [Figure 15] 1 illustrates a schematic representation of an engagement base assembly with a retention mechanism according to a first aspect of the present disclosure, with the upper case of the seat plate removed to illustrate the retention mechanism; [Figure 16A]A cross-sectional view of the retention feature is shown diagrammatically along line FF in FIG. 15, with a corresponding cross-section of the seat plate shown to illustrate the structural relationship between the retention feature and the seat plate. [Figure 16B] FIG. 2 shows a schematic cross-sectional view of a retention mechanism according to a first aspect of the present disclosure, in which a carrier is positioned above a seat plate; [Figure 16C] FIG. 2 shows a schematic cross-sectional view of a retention mechanism according to a first aspect of the present disclosure, in which a carrier is positioned above a seat plate; [Figure 16D] 1A and 1B show schematic cross-sectional views of a retention mechanism according to a first embodiment of the present disclosure; [Figure 17A] 1 illustrates a schematic diagram of a wheeled mobility device according to an embodiment of the present disclosure; [Figure 17B] 1 illustrates a schematic diagram of a wheeled mobility device according to an embodiment of the present disclosure; [Figure 17C] 1 illustrates a schematic diagram of a wheeled mobility device according to an embodiment of the present disclosure; [Figure 17D] 1 illustrates a schematic diagram of a wheeled mobility device according to an embodiment of the present disclosure; [Figure 18A] 17B illustrates a schematic diagram of an engagement base assembly for the wheeled mobility device shown in FIG. 17A. [Figure 18B] 17B illustrates a schematic diagram of an engagement base assembly for the wheeled mobility device shown in FIG. 17A. [Figure 18C] 17B illustrates a schematic diagram of an engagement base assembly for the wheeled mobility device shown in FIG. 17A. [Figure 18D] 17B illustrates a schematic diagram of an engagement base assembly for the wheeled mobility device shown in FIG. 17A. [Figure 18E] 18E and 18F are schematic enlarged views of the unlocking operating member shown in FIG. 18D in various positions; [Figure 18F] 18E and 18F are schematic enlarged views of the unlocking operating member shown in FIG. 18D in various positions; [Figure 19A] FIG. 2 shows a schematic perspective view of a wheeled transportation device according to a second embodiment of the present disclosure. [Figure 19B]1 shows a perspective schematic diagram of a frame according to the present disclosure. [Figure 19C] FIG. 19C shows a schematic perspective view of the frame shown in FIG. 19B from another angle. [Figure 20] 1 shows a perspective schematic view of an engagement base assembly according to the present disclosure. [Figure 21] FIG. 21 is a schematic perspective view of the engagement base assembly shown in FIG. 20 after removing a seat plate. [Figure 22] 19C is a schematic perspective view of the frame and the seat plate support member attached to the frame shown in FIG. 19B. [Figure 23] 23 is a schematic perspective view of the frame and the seat plate support member shown in FIG. 22 at another angle. FIG. [Figure 24] 1 shows a schematic perspective view of a frame of the present disclosure and an engaging base assembly attached to the frame. [Diagram 25] 25 shows a schematic perspective view of the frame and engagement base assembly shown in FIG. 24 from another angle. [Figure 26] FIG. 19B is a side view of the wheeled transportation device shown in FIG. 19A. [Figure 27] FIG. 27 is a front view of the wheeled transportation device shown in FIG. 26 after the carrier has been removed. [Figure 28] FIG. 25 is a side view of the frame and engagement base assembly shown in FIG. 24. [Figure 29] FIG. 29 is a side view of the frame and engagement base assembly shown in FIG. 28 during folding. [Diagram 30] FIG. 29 is a side view of the frame and engagement base assembly shown in FIG. 28 after it has been fully folded. [Diagram 31] 31 shows a front view of the frame and engagement base assembly shown in FIG. 30. [Figure 32A] 11A to 11C are schematic external views of a carrier in a first embodiment of the third aspect of the present disclosure from different angles. [Figure 32B] 11A to 11C are schematic external views of a carrier in a first embodiment of the third aspect of the present disclosure from different angles. [Figure 32C]FIG. 11 is an exploded schematic view of partial elements of a carrier in a first embodiment of the third aspect of the present disclosure. [Fig. 32D] FIG. 11 is a schematic diagram of a carrier according to a first embodiment of the third aspect of the present disclosure when attached to a base. [Figure 32E] FIG. 11 is a partial configuration diagram of a carrier according to a first embodiment of the third aspect of the present disclosure when attached to a base. [Fig. 32F] FIG. 11 is a schematic cross-sectional view of a carrier in a first embodiment of the third aspect of the present disclosure. [Fig. 32G] FIG. 13 is a top view of a carrier according to a first embodiment of the third aspect of the present disclosure. [Fig. 32H] FIG. 11 is a partial structural cross-sectional view of a carrier in a first embodiment of a third aspect of the present disclosure. [Fig. 32I] FIG. 11 is a structural cross-sectional view of another part of the carrier in the first embodiment of the third aspect of the present disclosure. [Fig. 32J] 11A-11C are schematic diagrams of restraint belt arrangements at different angles of a carrier of a first embodiment of the third aspect of the present disclosure. [Figure 32K] 11A-11C are schematic diagrams of restraint belt arrangements at different angles of a carrier of a first embodiment of the third aspect of the present disclosure. [Figure 32L] FIG. 13 is a schematic diagram of a carrier of a first embodiment of the third aspect of the present disclosure with the handle in a closed state. [Figure 33A] 11A-11C are schematic external views of a carrier according to a second embodiment of the present disclosure from different angles. [Figure 33B] 11A-11C are schematic external views of a carrier according to a second embodiment of the present disclosure from different angles. [Figure 33C] FIG. 11 is a schematic cross-sectional view of a carrier according to a second embodiment of the third aspect of the present disclosure. [Figure 33D] FIG. 13 is a top view of a second embodiment of a carrier according to the third aspect of the present disclosure with the handle in a closed position. [Figure 33E] FIG. 13 is an enlarged view of a partial structure of a carrier in a second embodiment of the third aspect of the present disclosure. [Figure 34A]13A-13C are schematic external views of a carrier according to a third embodiment of the present disclosure at different angles. [Figure 34B] 13A-13C are schematic external views of a carrier according to a third embodiment of the present disclosure at different angles. [Figure 34C] 13A-13C are schematic external views of a carrier according to a third embodiment of the present disclosure at different angles. [Figure 35A] 11A to 11C are schematic external views of a carrier according to a fourth embodiment of the present disclosure in different states. [Figure 35B] 11A to 11C are schematic external views of a carrier according to a fourth embodiment of the present disclosure in different states. [Figure 35C] FIG. 11 is a partial structural view of the carrier after removing the ceiling and sheet of the fourth embodiment of the third aspect of the present disclosure. [Figure 36A] FIG. 13 is an external schematic diagram of a carrier in a fifth embodiment of the third aspect of the present disclosure. [Figure 36B] FIG. 11 is a partial structural view of the carrier after removing the ceiling and sheet in the fifth embodiment of the third aspect of the present disclosure. [Figure 37A] FIG. 13 is a schematic external view of a carrier according to a sixth embodiment of the third aspect of the present disclosure. [Figure 37B] FIG. 13 is a partial structural view of the carrier after removing the ceiling and sheet in the sixth embodiment of the third aspect of the present disclosure. [Figure 38A] FIG. 13 is a schematic external view of a carrier according to a seventh embodiment of the third aspect of the present disclosure. [Figure 39] FIG. 11 is a schematic front view of a carrier according to an embodiment of the fourth aspect of the present disclosure. [Diagram 40] A schematic diagram of the structure of the carrier shown in FIG. 39 after removing the ceiling and sheet is shown. [Diagram 41] FIG. 41 is a configuration diagram of the carrier shown in FIG. 40 from another angle. [Diagram 42] FIG. 42 is a structural diagram of another state of the carrier shown in FIG. 41 with the ceiling assembly separated from the case. [Diagram 43] FIG. 42 is a structural diagram of a carrier for removing the ceiling assembly shown in FIG. 41. [Diagram 44] FIG. 11 is a schematic diagram of a ceiling frame and a ceiling locking device disposed thereon according to an embodiment of the fourth aspect of the present disclosure. [Diagram 45] 45 is a schematic diagram showing the configuration of a ceiling locking device at part A in FIG. 44. [Figure 46] FIG. 46 is a configuration diagram of the ceiling locking device shown in FIG. 45 in another state. [Figure 47] FIG. 46 is a schematic diagram showing the configuration of the ceiling lock device shown in FIG. 45 when it cooperates with the ceiling lock portion. [Figure 48] A schematic diagram of the ceiling lock device and the ceiling lock unit shown in Figure 47 when unlocked is shown. [Figure 49] FIG. 11 is a schematic diagram of a ceiling frame in an expanded state according to an embodiment of the fourth aspect of the present disclosure. [Figure 50] FIG. 50 is a diagram showing the configuration of the ceiling frame shown in FIG. 49 in a folded state. [Figure 51A] 4 is a schematic diagram showing the configuration of a first pivot portion of the ceiling frame. FIG. [Figure 51B] 4 is a schematic diagram showing the configuration of a first pivot portion of the ceiling frame. FIG. [Figure 51C] 4 is a schematic diagram showing the configuration of a first pivot portion of the ceiling frame. FIG. [Figure 52] FIG. 2 is a structural schematic diagram of the case with the ceiling frame attached in the unfolded state. [Figure 53] FIG. 13 is a structural schematic diagram of the case with the ceiling frame attached in the folded state. [Figure 54A] FIG. 2 is a schematic perspective view of the carrier with the roof unfolded. [Figure 54B] FIG. 2 is a schematic perspective view of the carrier with the roof folded down; [Figure 55] FIG. 11 is a schematic perspective view of a carrier provided with a handle and a gift bag according to one embodiment of the fourth aspect of the present disclosure. [Figure 56] FIG. 13 is a schematic perspective view of a carrier according to another embodiment of the fourth aspect of the present disclosure. [Figure 57A] FIG. 13 is a schematic perspective view of a carrier from which an unlocking operation member has been removed according to another embodiment of the fourth aspect of the present disclosure. [Figure 57B] FIG. 57B is a partially enlarged view of part H in FIG. 57A. [Figure 57C] 57B shows a cross-sectional perspective view taken along line GG in FIG. 57A. [Figure 58A] FIG. 13 is a perspective view of a ceiling lock according to another embodiment of the fourth aspect of the present disclosure. [Figure 58B] FIG. 13 is a perspective view of a ceiling lock according to another embodiment of the fourth aspect of the present disclosure. [Figure 59A] FIG. 57 is a cross-sectional perspective view of the ceiling locking device taken along line FF in FIG. 56, with the ceiling locking device in a locked state. [Figure 59B] FIG. 2 is a cross-sectional perspective view of the ceiling locking device from an unlocked state. [Figure 59C] FIG. 2 is a cross-sectional perspective view of the ceiling lock device in a removed state. [Figure 60] FIG. 11 is a schematic diagram of a ceiling frame in an expanded state according to another embodiment of the fourth aspect of the present disclosure. [Figure 61] FIG. 61 is a diagram showing the configuration of the ceiling frame shown in FIG. 60 in a folded state. [Figure 62A] 1A-1D respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 62B] 1A-1D respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 62C] 1A-1D respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Fig.62D] 1A-1D respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 62E] 1A-1D respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Fig.62F] 1A-1D respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 63A] 1A-1D respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 63B] 1A-1D respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 63C]1A-1D respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Fig. 63D] 1A-1D respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Fig. 64A] FIG. 11 is a schematic diagram of a carrier according to yet another embodiment of the fourth aspect of the present disclosure. [Figure 64B] FIG. 11 is a schematic diagram of a carrier according to yet another embodiment of the fourth aspect of the present disclosure. [Fig. 64C] FIG. 11 is a schematic diagram of a carrier according to yet another embodiment of the fourth aspect of the present disclosure. [Fig.64D] FIG. 11 is a schematic diagram of a carrier according to yet another embodiment of the fourth aspect of the present disclosure. [Figure 65] FIG. 13 is a schematic perspective view of a carrier according to yet another embodiment of the fourth aspect of the present disclosure. [Figure 66] FIG. 13 is a schematic perspective view of a carrier according to yet another embodiment of the fourth aspect of the present disclosure. [Figure 67A] FIG. 13 is a schematic diagram of a ceiling and a seat upholstery connected thereto according to one embodiment of the fourth aspect of the present disclosure. [Figure 67B] FIG. 13 is a schematic diagram of a ceiling and a seat upholstery connected thereto according to one embodiment of the fourth aspect of the present disclosure. [Figure 68A] FIG. 13 shows a perspective view of a combination of a bracket device and a case according to an embodiment of the fourth aspect of the present disclosure. [Figure 68B] FIG. 13 shows a perspective view of a combination of a bracket device and a case according to an embodiment of the fourth aspect of the present disclosure. [Figure 68C] FIG. 13 shows a perspective view of a combination of a bracket device and a case according to an embodiment of the fourth aspect of the present disclosure. [Figure 68D] FIG. 13 shows a perspective view of a combination of a bracket device and a case according to an embodiment of the fourth aspect of the present disclosure. [Figure 68E] 13 is a schematic plan view showing the connection between the bracket device of the carrier and the frame applied to one embodiment of the fourth aspect of the present disclosure. FIG. [Figure 69A] FIG. 13 shows a perspective view of a combination of a bracket device and a case according to another embodiment of the fourth aspect of the present disclosure. [Figure 69B] FIG. 13 shows a perspective view of a combination of a bracket device and a case according to another embodiment of the fourth aspect of the present disclosure. [Figure 69C] FIG. 13 shows a perspective view of a combination of a bracket device and a case according to another embodiment of the fourth aspect of the present disclosure. [Figure 69D] FIG. 13 is a schematic plan view of a combination of a bracket device of a carrier and a frame applied to another embodiment of the fourth aspect of the present disclosure. [Figure 70A] 13 shows a carrier and its bracket device according to one embodiment of the fourth aspect of the present disclosure. [Figure 70B] 13 shows a carrier and its bracket device according to one embodiment of the fourth aspect of the present disclosure. [Figure 70C] 13 shows a carrier and its bracket device according to one embodiment of the fourth aspect of the present disclosure. [Fig. 70D] 13 shows a carrier and its bracket device according to one embodiment of the fourth aspect of the present disclosure. [Figure 70E] 13 shows a carrier and its bracket device according to one embodiment of the fourth aspect of the present disclosure. [Fig. 70F] 13 shows a carrier and its bracket device according to one embodiment of the fourth aspect of the present disclosure. [Fig. 70G] 13 shows a carrier and its bracket device according to one embodiment of the fourth aspect of the present disclosure. [Figure 71A] 1 shows a carrier according to an embodiment of the fourth aspect of the present disclosure. [Figure 71B] 1 shows a carrier according to an embodiment of the fourth aspect of the present disclosure. [Figure 71C] 1 shows a carrier according to an embodiment of the fourth aspect of the present disclosure. [Fig. 71D] 1 shows a carrier according to an embodiment of the fourth aspect of the present disclosure. [Figure 72] FIG. 13 shows a perspective view of a carrier according to an embodiment of the fifth aspect of the present disclosure. [Figure 73] FIG. 73 is a partially exploded perspective view of the carrier shown in FIG. 72 with the carrier case separated from the bracket assembly. [Figure 74] FIG. 73 is a perspective view of a case body of the carrier shown in FIG. 72. [Figure 75] 75 shows a perspective view of a side support member of the main body shown in FIG. 74. [Figure 76] FIG. 75 is a perspective view of an upper support member of the main body shown in FIG. 74. [Figure 77] 13 shows a perspective view of a side support member of a carrier according to another embodiment of the fifth aspect of the present disclosure. FIG. [Figure 78] FIG. 78 is a perspective view of an upper support member cooperating with the side support members shown in FIG. 77; [Figure 79] 13 shows a perspective view of a main body of a carrier according to yet another embodiment of the fifth aspect of the present disclosure. FIG. [Figure 80] 80 shows a perspective view of a bottom support member of the carrier shown in FIG. 79. [Figure 80A] FIG. 13 is a perspective view of a main body of a carrier according to yet another embodiment of the fifth aspect of the present disclosure. [Figure 80B] FIG. 13 is a perspective view of a main body of a carrier according to yet another embodiment of the fifth aspect of the present disclosure. [Fig. 80C] FIG. 13 is a perspective view of a main body of a carrier according to yet another embodiment of the fifth aspect of the present disclosure. [Fig. 80D] 13 shows a perspective view of a main body of a carrier according to yet another embodiment of the fifth aspect of the present disclosure. FIG. [Figure 80E] 13 shows a perspective view of a main body of a carrier according to yet another embodiment of the fifth aspect of the present disclosure. FIG. [Fig. 80F] 13 shows a perspective view of a main body of a carrier according to yet another embodiment of the fifth aspect of the present disclosure. FIG. [Figure 81] 13 shows a bottom perspective view of a carrier according to an embodiment of the fifth aspect of the present disclosure. [Figure 82] 82 shows a perspective view of an engagement base assembly that cooperates with the carrier shown in FIG. 81; [Figure 83A] FIG. 2 is a perspective view of a carrier mounted to a vehicle via a fixed base assembly. [Figure 83B] FIG. 2 is a perspective view of the carrier secured to the vehicle via a fastening belt assembly. [Figure 84] FIG. 83B is a perspective view of the fastening belt assembly shown in FIG. 83A. [Figure 85] FIG. 82 is a perspective view of a wheeled transportation device cooperating with the carrier shown in FIG. 81. [Figure 86] FIG. 2 is a perspective view of the attachment of the carrier to the wheeled transportation device. [Fig. 87A] 13A to 13C are schematic external views of a carrier at different angles according to an embodiment of the sixth aspect of the present disclosure. [Fig. 87B] 13A to 13C are schematic external views of a carrier at different angles according to an embodiment of the sixth aspect of the present disclosure. [Fig. 87C] 13A to 13C are schematic external views of a carrier at different angles according to an embodiment of the sixth aspect of the present disclosure. [Fig. 88A] FIG. 2 is a perspective view of a carrier according to one embodiment of the present disclosure. [Fig. 88B] FIG. 2 is a perspective view of a carrier according to one embodiment of the present disclosure. [Fig. 88C] FIG. 2 is a perspective view of a carrier according to one embodiment of the present disclosure. [Figure 89A] FIG. 2 is a perspective view of a carrier according to one embodiment of the present disclosure. [Fig. 89B] FIG. 2 is a perspective view of a carrier according to one embodiment of the present disclosure. [Figure 90A] FIG. 13 is a perspective view of a carrier according to another embodiment of the present disclosure. [Figure 90B] FIG. 13 is a perspective view of a carrier according to another embodiment of the present disclosure. [Figure 91A] FIG. 90C is a schematic diagram of the cushion shown in FIG. 90B. [Figure 91B] FIG. 90C is a schematic diagram of the cushion shown in FIG. 90B. [Fig. 91C] FIG. 90C is a schematic diagram of the cushion shown in FIG. 90B. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0121] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. While the present disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings. However, the present disclosure should not be construed as being limited to the embodiments disclosed herein, but on the contrary, the present disclosure shall cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure.

[0122] The present disclosure will now be described in detail with reference to the drawings.

[0123] When a user needs to travel with an infant or animal, the user can use a portable carrier to carry the infant or animal. To move the portable carrier easily and with less effort, the carrier can be attached to the transportation device so as to move together with the transportation device.

[0124] In a first aspect of the present disclosure, a wheeled transportation device 11 having a locking function is provided.

[0125] 1A and 1B, a wheeled transportation device 11 according to an embodiment of the first aspect of the present disclosure is shown, in which FIG. 1A is a perspective view of the wheeled transportation device 11 of this embodiment, and FIG. 1B is a plan perspective view of the wheeled transportation device 11.

[0126] As shown in FIG. 1A, the wheeled transportation device 11 of this embodiment includes a frame 110, an engagement base assembly 120, and a carrier 130. The frame 110 is similar to a cart, and its detailed structure will be described below. The engagement base assembly 120 is attached to the frame 110 and can lock and unlock a locking object (also called an "engagement object", hereinafter collectively referred to as "object") to stably position the object, thereby improving the safety of the object during transportation. In addition, the operation of the engagement base assembly 120 allows a user to easily attach and detach an object to and from the frame 110.

[0127] In this embodiment, the object may be a carrier 130 having a box-like structure for carrying an infant or an animal (eg, a pet) and which may be attached to a frame 110 via an engaging base assembly 120, as shown in FIG. 1A.

[0128] As shown in FIG. 1B, the carrier 130 includes a handle 1330 for lifting the carrier 130 and a case 1340 for carrying an infant or an animal. When the carrier 130 is attached to the engagement base assembly 120, the longitudinal centerline C11 of the carrier 130 is substantially in the same vertical plane as the longitudinal centerline C12 of the engagement base assembly 120, i.e., the carrier 130 is disposed substantially symmetrically with respect to the longitudinal centerline C12 of the engagement base assembly 120. Note that the "longitudinal centerline" refers to a centerline perpendicular to a connecting line connected to the tip of the handle 1330 of the carrier 130, and the direction indicated by "D11" in FIG. 1B (i.e., the longitudinal direction D11) refers to a direction extending in a longitudinal direction parallel to the longitudinal centerlines C11 and C12.

[0129] In one embodiment, as shown in FIG. 1B, the lateral centerline C13 of the carrier 130 is substantially on the same vertical plane as the lateral centerline C14 of the engagement base assembly 120. In this case, the carrier 130 is disposed approximately in the center with respect to the engagement base assembly 120. Note that the "lateral centerline" refers to a centerline parallel to the connecting lines at both ends of the handle 1330, and the direction shown by "D12" in FIG. 1B (i.e., the lateral direction D12) is a direction extending in a lateral direction parallel to the lateral centerlines C13 and C14. In one example, the connecting lines at both ends of the handle 1330 are parallel to the lateral centerline C13 of the carrier 130 and are located on the same vertical plane so that the user can maintain balance when lifting the carrier 130 by hand via the handle 1330.

[0130] 1C and 1D, FIG. 1C is a perspective view of the wheeled transportation device 11 after the case of the carrier 130 has been removed, and FIG. 1D is a plan perspective view of the wheeled transportation device 11 after the case has been removed.

[0131] 1C and 1D , the carrier 130 further includes a bracket device 1310 including a first bracket 1311, a second bracket 1312, and a third bracket 1313. When the carrier 130 is attached to the engagement base assembly 120, the bracket device 1310 (e.g., the third bracket 1313) of the carrier 130 engages with the engagement base assembly 120, allowing the carrier 130 to be firmly attached to the frame 110 via the engagement base assembly 120. In the bracket device 1310, the first bracket 1311 is provided substantially horizontally at the upper end of the bracket device 1310 and configured as an upper frame of the bracket device 1310, and has a substantially rectangular structure for connecting the handle 1330, the third bracket 1313 is provided substantially horizontally at the lower end of the bracket device 1310 for engaging with the bracket assembly 120 (as shown in the partially enlarged view of FIG. 1C), and the second bracket 1312 is connected between the first bracket 1311 and the third bracket 1313. In one embodiment, the second bracket 1312 includes a plurality of parallel arranged U-shaped structures for contacting and supporting the side and bottom surfaces of the case of the carrier 130 (the case is not shown in FIG. 1C to clearly illustrate the bracket device 1310), forming the side frame and the bottom frame of the bracket device 1310. That is, with reference to FIGS. 1B and 1C, it can be seen that second bracket 1312 extends from one side of the periphery of case 1340 (i.e., the mounting portion) through the bottom surface of case 1340 to the other side of the periphery of case 1340.

[0132] In one embodiment, as shown in FIG. 1C and FIG. 1D, the third bracket 1313 includes an engagement member 13131, two first structural reinforcement members 13132, and a second structural reinforcement member 13133. The engagement member 13131 forms an annular structure (e.g., a substantially rectangular annular structure). The two first structural reinforcement members 13132 are respectively connected to the engagement member 13132 (e.g., both ends are respectively connected to two opposing long sides of the annular structural member of the engagement member 13131), arranged spaced apart from each other, and extending substantially along the lateral direction D12 of the carrier 130. In one example, as shown in FIG. 1C, the two first structural reinforcement members 13132 are respectively provided at the lower end of the second bracket 1312 (e.g., at the lower side of the U-shaped structure of the second bracket 1312), fixedly connected to the second bracket 1312, and play the role of supporting and fixing. For example, the two first structural reinforcement members 13132 may be arranged symmetrically with respect to the lateral centerline C13 of the carrier 130. The second structural reinforcement member 13133 is connected substantially perpendicularly between two opposite sides (e.g., two long sides of a rectangular structure) of the annular structural member of the engagement member 13131 to enhance the impact resistance of the entire structure of the third bracket 1313. In this embodiment, the third bracket 1313 may include at least one second structural reinforcement member 13133. Optionally, as shown in FIG. 1D, the third bracket 1313 includes two second structural reinforcement members 13133 arranged symmetrically with respect to the lateral centerline C13 of the carrier 130 to help the carrier 130 to be locked in an approximately central position and provide a positioning guide action to enhance stability when the carrier 130 is attached to the wheeled transportation device 11. The at least one third structural reinforcement member 13133 further enhances the impact resistance of the entire structure of the third bracket 1313. In one example, as shown in FIGS. 1C and 1D, the second structural reinforcement member 13133 is spaced apart from the first structural reinforcement member 13132.

[0133] In one example, the at least one second structural reinforcement member 13133 can be configured as a separate member connected to the engaging member 13131. In the alternative, the at least one second structural reinforcement member 13133 can be configured to be integrally formed with the engaging member 13131. In one example, the two ends of each of the first structural reinforcement member 13132 and the second structural reinforcement member 13133 can further be provided with multiple guide members 13132a, 13133a on both sides of each end to further limit the position at which the carrier 130 engages with the engagement base assembly 120 and reduce the range of movement along the vertical direction D11 when the carrier 130 is attached to the engagement base assembly 120.

[0134] According to an embodiment of the present disclosure, as shown in FIG. 1D (where one engagement point is shown in the form of a localized enlarged view), the carrier 130 has a plurality of engagement point locations, for example, four engagement point locations, when attached to the engagement base assembly 120. The four engagement point locations are substantially symmetrically distributed about the longitudinal centerline C11 of the carrier 130 (and the longitudinal centerline C12 of the engagement base assembly 120) and symmetrically distributed about the lateral centerline C13 of the carrier 130 (and the lateral centerline C14 of the engagement base assembly 120). For example, the four engagement point locations are provided on the engagement base assembly 120 in a centrosymmetric manner. In one embodiment, the plurality of engagement point locations are located between two first structural reinforcement members 13132 (the first structural reinforcement member of FIG. 1D is interrupted by the second bracket 1312 as shown in FIG. 1C), and further between the first structural reinforcement member 13132 and the second structural reinforcement member 13133. For example, in an embodiment in which two second structural reinforcement members 13133 are provided, the two second structural reinforcement members 13133 may be provided between the structural reinforcement members 13132, and the locations of the two or more engagement points may be located between the two first structural reinforcement members 13132 and their adjacent second structural reinforcement members 13133.

[0135] As a result, the embodiment of the present disclosure positions the bottom center of the carrier 130 approximately symmetrically on the engagement base assembly 120, so that the carrier 130 can be stably attached to the engagement base assembly 120 and the frame 110, and the user can easily place the carrier 130 symmetrically on the frame 110 according to the distribution of the positions of the above-mentioned multiple engagement points of the engagement base assembly 120, and can also easily place the carrier 130 in the center, as necessary, to improve the overall stability of the wheeled transportation device 11, so that the transportation device can keep its balance during traveling, and provide excellent impact resistance and safety. In another embodiment, the carrier 130 does not need to be centered on the engagement base assembly 120 according to the needs of the actual application, and the present disclosure does not limit various engageable positions of the carrier 130 relative to the engagement base assembly 120.

[0136] Referring to FIG. 2, a frame 110 according to a first aspect of the present disclosure is shown generally.

[0137] 2, the frame 110 of this embodiment includes a front support bar 1110, a rear support bar 1120, an upper support bar 1130, handrails 1140, and a wheel set 1150. The wheel set 1150 includes a front wheel 1150a and a rear wheel 1150b, which are connected to the front support bar 1110 and the rear support bar 1120, respectively.

[0138] In one embodiment, the front support bar 1110 may have a U-shaped structure, and the rear support bar 1120 may be formed by two parallel rod members with one rod fixed connection, and both ends of the front support bar 1110 may be pivotally connected to one end of the two rod members of the rear support bar 1120 respectively. At least one front wheel 1150a is connected to the lower side of the front support bar 1110 (i.e., the lower side of the U-shaped structure), and the other ends of the two rods of the rear support bar 1120 are respectively connected to the corresponding rear wheels 1150b. As shown in FIG. 2, in this embodiment, two front wheels 1150a are provided on the lower side of the front support bar 1110, which are pivotally mounted in a central symmetrical manner. As an example, the two front wheels 1150a are both universal wheels, and the two rear wheels 1150b are pivotally connected to the two rods of the rear support bar 1120 respectively, and can pivot in the front-rear direction of the frame 110.

[0139] Although some embodiments of the present disclosure have been given above, the present disclosure is not limited to the structure and number of the above parts. For example, in other embodiments, the rear support bar 1120 can have a U-shaped structure and connect two rear wheels 1150b. Optionally, the front support bar 1110 can have a V-shaped or I-shaped structure, or only one front wheel 1150a can be provided. In addition, the front wheel 1150a can be a unidirectional wheel, and the rear wheel 1150b can be a universal wheel.

[0140] In this embodiment, the distance between the two front wheels 1150a is smaller than the distance between the two rear wheels 1150b to increase the stability of the frame 110 and make it easier to steer.

[0141] 3A-3C, there is shown a schematic diagram of an interlocking base assembly 120 according to one embodiment of the present disclosure. Specifically, FIG. 3A is a perspective view of the interlocking base assembly 120, FIG. 3B is a side view of the interlocking base assembly 120, and FIG. 3C is a cross-sectional view taken along line BB in FIG. 3A.

[0142] As shown in Fig. 3A, the engagement base assembly 120 includes a seat plate 1210, a locking mechanism, and a support structure 1240. Here, the seat plate 1210 has an upper case and a lower case, and since the locking mechanism is provided within the seat plate 1210, it is blocked by the upper case of the seat plate 1210 in Fig. 3A, and its specific configuration will be described later with reference to Figs. 10A and 10B.

[0143] In one embodiment of the present disclosure, the support structure 1240 includes two support brackets 1241, which may be disposed on both lateral sides of the sheet plate 1210 (only one support bracket 1241 is shown in FIG. 3A due to the obstruction of the sheet plate 1210). For example, the two support brackets 1241 are disposed symmetrically on both sides of the sheet plate 1210 with respect to a longitudinal center line C15 of the sheet plate 1210. Note that the longitudinal center line C15 extends along the longitudinal direction D11 as shown in FIG. 3A.

[0144] 3B and 3C, each support bracket 1241 includes a vertical rod 12411, a connecting rod 12412, and a shock absorbing rod 12413 connected in a triangular structure. Here, the vertical rod 12411 is provided below the seat plate 1210 and fixedly connected to the seat plate 1210 (e.g., its lower case). The first end 12412a of the connecting rod 12412 and the first end 12411a of the vertical rod 12411 are pivotally connected within a certain range as shown in FIG. 3C, the second end 12412b of the connecting rod 12412 and the first end 12413a of the shock absorbing rod 12413 are fixedly connected, and the second end 12413b of the shock absorbing rod 12413 is fixedly connected to the second end 12411b of the vertical rod 12411, and is disposed, for example, at the middle rear of the vertical direction D11 of the seat plate 1210. In one embodiment, the shock absorbing rod 12413 has elasticity to provide cushioning support to the seat plate 1210. For example, the shock absorbing rod 12413 is a compression spring, a hydraulic rod, a pneumatic rod, or other elastic structure.

[0145] The triangular structure of the support bracket 1241 allows the engagement base assembly 120 to be stably installed on the frame (not shown in Figures 3A to 3C, specific installation methods will be described later in the description of Figures 5A to 5B), and by installing the shock absorbing rod 12413, a certain degree of cushioning can be provided for the object attached to the seat plate 1210 in the event that the frame is shaken.

[0146] In this embodiment, the upper end of the shock absorbing rod 12413 is provided at the position of the second end 12411b of the vertical rod 12411 (corresponding to the middle rear part of the seat plate 1210), which has a better vibration isolation stroke and achieves a better vibration isolation effect. However, the present disclosure is not limited thereto. In another embodiment, the shock absorbing capacity of the support bracket 1241 can be adjusted by adjusting the length of the vertical rod 12411 to adjust the connection position between the shock absorbing rod 12413 and the vertical rod 12411 relative to the seat plate 1210, for example, provided at the center position or the end of the seat plate 1210. In yet another embodiment, the shock absorbing capacity of the support bracket 1241 can also be adjusted by adjusting the length of the connecting rod 12412 within a preset range, setting the angle between the connecting rod 12412 and the vertical rod 12411, setting the angle between the connecting rod 12412 and the shock absorbing rod 12413, and / or adjusting the angle between the shock absorbing rod 12413 and the vertical rod 12411. In addition, the elastic coefficient of the shock absorbing rod 12413, such as the spring pitch, diameter and material of the compression spring, the pressure force of the air pressure or hydraulic rod, etc. can also be adjusted to achieve better vibration isolation effect.

[0147] 3B and 3C, the vertical rod 12411 further includes a position limiting finger 12411c provided on a side closer to the connecting rod 12412 at the first end 12411a of the vertical rod 12411 for restricting a downward pivot angle of the vertical rod 12411 relative to the connecting rod 12412. When traveling on a vibrating road surface, the shock absorbing rod 12413 deforms (e.g., shortens or bends) to provide a cushioning effect, and the vertical rod 12411 pivots downward relative to the connecting rod 12412. When the position limiting finger 12411c provided below the vertical rod 12411 abuts against the connecting rod 12412, the vertical rod 12411 does not continue to pivot downward (i.e., the angle between the vertical rod 12411 and the connecting rod 12412 does not become any smaller), preventing the vertical rod 12411 from being tilted too far relative to the horizontal plane, thereby preventing the seat plate 1210 and objects placed thereon from being tilted too far, further improving safety and driving stability.

[0148] As shown in FIG. 3C , in one embodiment, the vertical rod 12411 includes a position-limiting bump 12411d, which is provided on the side opposite the position-limiting finger 12411c at the first end 12411a of the vertical rod 12411, and the position-limiting bump 12411d is located between the vertical rod 12411 and the upper case of the seat plate 1210, and may be provided to restrict upward pivoting of the vertical rod 12411 relative to the connecting rod 12412. For example, as described above, when traveling on a swaying road surface, the vertical rod 12411 pivots down or up relative to the connecting rod 12412 as the shock absorbing rod 12413 deforms or recovers its deformation, and when the shock absorbing rod 12413 recovers its deformation, a force is applied to the vertical rod 12411 to pivot upward, and the position limiting bump 12411d prevents the vertical rod 12411 from pivoting upward too much together with the seat plate 1210 above it, causing the connection point between the vertical rod 12411 and the connecting rod 12412 to break. In addition, after the seat plate 1210 and the frame (not shown) are folded as a whole (see the explanations of Figures 7 to 8B for the specific folding process), the user can pull the seat plate 1210 to lift the entire frame structure along both ends in the vertical direction D11, and at this time, the position limiting bump 12411d also applies a large force to the rear end of the seat plate 1210 (i.e., the right end shown in Figure 3C), thereby preventing the seat plate 1210 from tipping over, further improving usage safety and structural stability.

[0149] Referring to FIG. 4, a support structure 1240 according to one embodiment of the first aspect of the present disclosure is shown diagrammatically.

[0150] In one embodiment, the support structure 1240 further includes a transverse rod or U-shaped first connecting rod 1242 connected between the vertical rods 12411 of the two support brackets 1241 and fixedly connecting them. For example, as shown in FIG. 4, the first connecting rod 1242 connects the second ends 12411b of the vertical rods 12411 of the two support brackets 1241. Optionally, the second ends 12411b of the vertical rods 12411 of the two support brackets 1241 are sleeved on both ends of the first connecting rod 1242, respectively. In another embodiment, the support structure 1240 further includes a second connecting rod 1243 connected between the connecting rods 12412 of the two support brackets 1241. Optionally, the first connecting rod 1242 and the second connecting rod 1243 are connected to both ends of the two vertical rods 12411, respectively, or are integrally formed with the two vertical rods 12411 into a rectangular frame structure.

[0151] 5A and 5B are schematic diagrams illustrating a support structure 1240' according to another embodiment of the first aspect of the present disclosure, where FIG. 5A illustrates a perspective view of the support structure 1240' and FIG. 5B illustrates a plan view of the support structure 1240' as seen from the inside.

[0152] As shown in FIG. 5A, the support structure 1240' has a similar structure to the support structure 1240 and also includes two support brackets 1241', where the support bracket 1241' includes a vertical rod 12411', a connecting rod 12412' and a shock absorbing rod 12413', with the difference that the support bracket 1241' may further include a position limiting member 12414'.

[0153] 5B, the first end 12414'a of the position limiting member 12414' is slidably connected to the vertical rod 12411', and the second end 12414'b of the position limiting member 12414' is connected to the second end 12412'b of the connecting rod 12412'. In one embodiment, the first end 12414'a of the position limiting member 12414' is provided with a position limiting groove 12414'c extending a certain distance in the vertical direction, and a pin 12411'e is provided at a middle position of the vertical rod 12411', and the position limiting groove 12414'c and the pin 12411'e cooperate with each other to allow the position limiting member 12414' to slide in a direction substantially perpendicular to the vertical rod 12411' (for example, vertically or substantially vertically). Optionally, when the position limiting member 12414' and the vertical rod 12411' are not displaced relative to each other, the pin 12411'e is disposed at a position corresponding to the vertical direction (direction D13 shown in FIG. 5B) of the second end 12412'b of the connecting rod 12412' on the vertical rod 12411'. In other words, when the position limiting member 12414' is not sliding relative to the vertical rod 12411' (i.e., the initial state), the pin 12411'e is located at the top end of the position limiting groove 12414'c, and the position limiting member 12414' is substantially perpendicular to the vertical rod 12411'. When traveling on a vibration road surface, the shock absorbing rod 12413' is deformed (e.g., shortened or curved) to provide a buffering effect so that the vertical rod 12411' pivots downward relative to the connecting rod 12412', and at this time, the position limiting groove 12414'c of the position limiting member 12414' limits the slide stroke (i.e., corresponding to the length of the position limiting groove 12414'c) of the pin 12411'e of the vertical rod 12411', and limits the pivoting of the vertical rod 12411' relative to the connecting rod 12412' within a certain range. This prevents the vertical rod 12411' and the seat plate fixed thereto (not shown in FIG. 5B, see the seat plate 1210 in the figures of FIGS. 3A to 3C) from tilting downward relative to the connecting rod 12412' during the buffering effect, and also prevents the seat plate and frame (shown in FIG. 9A) in the folded state from tilting downward relative to the connecting rod 12412' by the user lifting the seat plate.When the vertical rod 12411' and the seat plate attached thereto are moved (the folding mechanism of the frame 110 will be described later), the vertical rod 12411' and the seat plate attached thereto can be prevented from being inverted (i.e., the vertical rod 12411' pivots upward relative to the connecting rod 12412'). In other words, the position limiting member 12414' can further limit the pivoting of the vertical rod 12411' relative to the position limiting finger 12411'c and the position limiting bump 12411'd, and can simultaneously fulfill the roles of both the position limiting finger 12411'c and the position limiting bump 12411'd. However, the present disclosure is not limited thereto. In other embodiments, only the position limiting member 12414' may be provided without providing the position limiting finger 12411'c and the position limiting bump 12411'd.

[0154] 6A-6C, a frame 110 having an engagement base assembly 120 attached thereto is shown generally in accordance with one embodiment of the first aspect of the present disclosure, where Figs. 6A and 6B are perspective views of the frame 110 and the engagement base assembly 120 attached thereto from different angles, and Fig. 6C is a side view of the frame 110 and the engagement base assembly 120.

[0155] As shown in FIGS. 6A to 6C, the engagement base assembly 120 is pivotally connected and attached to the frame 110 via its support structure 1240, where the seat plate 1210 and locking mechanism (the locking mechanism is hidden in the figure, and the specific structure will be described later) of the engagement base assembly 120 are fixedly attached to the support structure 1240, and the seat plate 1210 provides a substantially horizontal plane for placing an object (a carrier in this embodiment). The support structure 1240 further includes a first connecting part 1244 and a second connecting part 1245, which are pivotally connected to the frame 110, respectively. Due to the arrangement of the first connecting part 1244 and the second connecting part 1245, the engagement base assembly 120 can be folded together with the folding of the frame 110. The specific method of connecting the support structure 1240 to the frame 110 and the mechanism by which the engagement base assembly 120 and the frame 110 fold in unison will be described below.

[0156] Referring to FIG. 7, there is shown a schematic diagram of a frame 110 having a support structure 1240 mounted thereon according to one embodiment of the first aspect of the present disclosure.

[0157] 7, one end of the first connecting part 1244 and the second connecting part 1245 are pivotally connected to the second end 12412b of the connecting rod 12412, and the other ends of the first connecting part 1244 and the second connecting part 1245 and the first end 12412a of the connecting rod 12412 are pivotally connected to different positions of the frame 110 that are pivotable relative to each other. Due to this connection between the first connecting part 1244 and the second connecting part 1245, the support structure 1240 is pivotally attached to the frame 110 so as to provide a supporting effect for the engagement base assembly (for clarity, the structure of the engagement base assembly other than the support structure 1240 is removed in the figure) and to be folded together with the frame 110.

[0158] Specifically, as shown in FIG. 7 , one end of the first connecting part 1244 is pivotally connected to the second end 12412b of the connecting rod 12412, the other end of the first connecting part 1244 is pivotally connected to the upper support bar 1130 of the frame 110, one end of the second connecting part 1245 is pivotally connected to the second end 12412b of the connecting rod 12412, the other end of the second connecting part 1245 is pivotally connected to the rear support bar 1120, and the first end 12412a of the connecting rod 12412 is pivotally connected to the front support bar 1110, thereby allowing the support bracket 1241 to pivot together with the entire engagement base assembly 120 in conjunction with the pivoting of the frame 110, thereby achieving overall folding.

[0159] 8A-9B, a folding process of a frame 110 having an attached engaging base assembly 120 according to one embodiment of the first aspect of the present disclosure is shown, where Fig. 8A and Fig. 8B show a perspective view and a side view of the frame 110 with the attached engaging base assembly 120 during folding, and Fig. 9A and Fig. 9B show a front view and a side view of the frame 110 with the attached engaging base assembly 120 after being fully folded.

[0160] As shown in FIG. 8A, the frame 110 of this embodiment can be folded for easy transport and storage. Specifically, the handrail 1140 of the frame 110 is pivotally connected to the upper support bar 1130 via the pivot portion 1131 and can be folded relative to the upper support bar 1130. The front support bar 1110, the rear support bar 1120 and the upper support bar 1130 are pivotally connected to a first pivot point A11 and can be folded relative to each other. In addition, the support structure 1240 can be pivoted while the frame 110 is folded, and the engagement base assembly 120 attached to the support structure 1240 can also be pivoted with the folding of the frame 110.

[0161] 8B, the support structure 1240 is pivotally connected to the second pivot point A12 via a first connecting part 1244 and the upper support bar 1130 of the frame 110, pivotally connected to the rear support bar 1120 and the third pivot point A13 via a second connecting part 1245, and pivotally connected to the front support bar 1110 and the fifth pivot point A15 via a connecting rod 12412. The first connecting part 1244 and the second connecting part 1245 are connected to the connecting rod 12412 and the fourth pivot point A14.

[0162] Due to the above connection relationship, the first connecting part 1244, the second connecting part 1245, the upper support bar 1130 and the rear support bar 1120 constitute a four-rod interlocking mechanism via the first, second, third and fourth pivot points A11, A12, A13 and A14, while the front support bar 1110, the rear support bar 1120, the second connecting part 1245 and the connecting rod 12412 constitute a four-rod interlocking mechanism via the first, third, fourth and fifth pivot points A11, A13, A14 and A15. The front support bar 1110, the upper support bar 1130, the first connecting piece 1244 and the connecting rod 12412 form a four-rod linkage mechanism via first, second, fourth and fifth pivot points A11, A12, A14, A15, allowing the engagement base assembly 120 to pivot as the frame 110 folds and is stored in the overall configuration of the frame 110 (the final folded state is shown in FIG. 9B).

[0163] Further, with reference to Figures 9A and 9B, when the frame 110 is fully folded, i.e., the front support bar 1110, the rear support bar 1120, the upper support bar 1130, and the handrails 1140 are folded in their closest positions to one another, the engagement base assembly 120 is stored between the upper support bar 1130, the front support bar 1110, and the rear support bar 1120 as it pivots.

[0164] 9A, the seat plate 1210 may include a carrying handle 1211. When the frame 110 and engaging base assembly 120 are fully folded, the carrying handle 1211 is located above the entire folded structure, allowing a user to easily grasp the carrying handle 1211 to move the frame 110 (together with the engaging base assembly 120).

[0165] 10A and 10B, a mating base assembly 120 according to one embodiment of the first aspect of the present disclosure is shown generally in FIG. 10A and FIG. 10B are perspective views of mating base assembly 120, with FIG. 10A having the top case of seat plate 1210 removed to more easily view locking mechanism 1220 located within seat plate 1210.

[0166] 10A and 10B, it can be seen that a locking mechanism 1220 is mounted within the seat plate 1210 for locking and unlocking an object (e.g., a sleeping box, other animal, or infant carrier) positioned on the seat plate 1210.

[0167] As shown in FIG. 10A, the lock mechanism 1220 includes at least one unlocking operation member 1221 and at least one locking member 1222. The unlocking operation member 1221 is provided in the sheet plate 1210 and is movable between a locked position and an unlocked position relative to the sheet plate 1210. The locking member 1222 can move in response to the movement of the unlocking operation member 1221. When the unlocking operation member 1221 is in the locked position shown in FIG. 10B, at least a part of the unlocking operation member 1221 protrudes from the sheet plate 1210, and an object placed on the sheet plate 1210 is locked. In addition, when the unlocking operation member 1221 is pressed to move inward from the locked position to the unlocked position, the locking member 1222 moves in response to the movement of the unlocking operation member 1221, and unlocks the object on the sheet plate 1210. In this embodiment, as shown in FIG. 10B, at least a part of the unlocking operation member 1221 protrudes outward from the side surface of the seat plate 1210.

[0168] As shown in FIG. 10A, in one embodiment, the at least one locking member 1222 can include multiple front locking members 12221, which can be connected via an interlocking assembly 12231, so that the locking members 1222 located on the same side of the seat plate 1210 can move synchronously. For example, the multiple front locking members 12221 can be rigidly connected (i.e., fixedly connected) to move in the same direction, or the multiple front locking members 12221 can move in opposite directions by the connection of the interlocking assembly 12231 as shown in FIG. 10A. Similarly, the at least one locking member 1222 can include multiple rear locking members 12222 connected via another interlocking assembly 12231, so that the locking members 1222 located on the other side of the seat plate 1210 can move synchronously.

[0169] In another embodiment, at least one locking member 1222 includes at least one front locking member 12221 provided on one side of the seat plate 1210 and fixedly connected to a corresponding unlocking operation member 1221, and a rear locking member 1222 provided on the other side of the seat plate 1210 opposite the side of the front locking member 12221, and the front locking member 12221 and the rear locking member 12222 are connected via an interlocking member (for example, "12232" in Figure 10A and "12232" in Figure 14A, described below) so that the locking members 1222 located on different sides of the seat plate 1210 can move synchronously.

[0170] Here, the interlocking assembly 12231 and the interlocking members are collectively referred to as the "interlocking device" and are connected between the locking members 1222 so that these locking members 1222 can move together correspondingly as the unlocking operation member 1221 moves, thereby achieving synchronous unlocking or synchronous locking of an object by multiple locking members 1222.

[0171] For example, as shown in FIG. 10A, in one embodiment of the first aspect of the present disclosure, two unlocking operation members 1221 are provided. Here, the two unlocking operation members 1221 are located on both sides of the sheet plate 1210 in the lateral direction (i.e., the lateral direction D12), and are movable between their respective locked and unlocked positions with respect to the sheet plate 1210. Therefore, in this embodiment, two front locking members 12221 and two rear locking members 12222 are further provided. The two front locking members 12221 are movably provided on one side of the sheet plate 1210, and are fixedly connected to the corresponding (e.g., adjacent) unlocking operation members 1221. The two rear locking members 12222 are movably provided on the other side of the sheet plate 1210 (i.e., the side opposite to the side where the two front locking members 12221 are located), and are connected to the respective front locking members 12221 via interlocking members.

[0172] For example, the two front locking members 12221 are arranged on the front side of the seat plate 1210 (the lower left side shown in FIG. 10A is the front side of the seat plate 1210) and are fixedly connected to the adjacent unlocking operation member 1221, and the two rear locking members 12222 are arranged on the rear side of the seat plate 1210 (the upper right side shown in FIG. 10A is the rear side of the seat plate 1210), are connected to the two front locking members 12221 via their respective interlocking members, and can operate in synchronization with the two front locking members 12221. More specifically, as shown in FIG. 10B, two unlocking operation members 1221 are arranged symmetrically on both sides of the sheet plate 1210 with respect to the center line C15, and two front locking members 12221 are arranged between the two unlocking operation members 1221 symmetrically with respect to the center line C15 and are fixedly connected to the unlocking operation members 1221 respectively fixedly connected to their adjacent sides, where the center line C15 of the sheet plate 1210 extends along the longitudinal direction D11 of the sheet plate 1210.

[0173] 10A, the interlocking member may be a traction member 12232. Specifically, the traction member 12232 may be provided so as to extend along the outer periphery of the lock mechanism 1220 within the seat plate 1210, and a front lock member 12221 and a corresponding rear lock member 12222 provided diagonally with respect to a center line C15 of the seat plate 1210 may be connected to each other via the traction member 12232 such that the front lock member 12221 and the rear lock member 12222 connected to the same traction member 12232 move in opposite directions. For example, the two front lock members 12221 located on the front side are connected to the diagonally arranged rear lock members 12222 via the corresponding traction members 12232, and when the unlocking operation member 1221 is operated, the front lock member 12221 moves in the direction of the center line C15, and further, the rear lock member 12222 connected to the front lock member 12221 (disposed diagonally from the front lock member 12221) moves in the opposite direction, that is, in the direction facing the front lock member 12221, whereby the rear lock member 12222 also moves to the center line C15. Also, when the unlocking operation member 1221 is released, both the front lock member 12221 and the rear lock member 12222 move in a direction away from the center line C15. In addition, in another embodiment, the front lock member 12221 and the rear lock member 12222, which are located on the same side as the center line C15 of the seat plate 1210, can be connected via a traction member 12232, and when the unlocking operation member 1221 is operated, the movement directions of the front lock member 12221 and the rear lock member 12222 are opposite, but the front lock member 12221 moves in a direction approaching the center line C15, and the rear lock member 12222 moves in a direction away from the center line C15.

[0174] In this embodiment, the traction member 12232 may be a steel wire and may be covered with a steel wire jacket and concealed in the sheet plate 1210. In other embodiments, the traction member 12232 may be a flexible member, such as a composite wire.

[0175] As shown in Fig. 10A, in this embodiment, an interlocking assembly 12231 is also provided between the two front locking members 12221 and / or between the two rear locking members 12222 so that the two front locking members 12221 and the two rear locking members 12222 move in opposite directions synchronously with respect to the center line C15. For example, the interlocking assembly 12231 is a four-link connection mechanism formed by four sheet-like two-by-two connections (specifically formed by two-by-two hinges), where the connection mechanism has a pivot point fixed to the sheet plate (see the sheet plate 1220 in Fig. 10B, and the upper case of the sheet is removed in Fig. 10A to show the structure of the locking mechanism 1220), and can extend (corresponding to the locked position of the unlocking operation member 1221) and shorten (corresponding to the unlocked position of the unlocking operation member 1221) on both sides with the position of the pivot point as the center line. Specifically, the four link connection mechanisms include a first rod, a second rod, a third rod, and a fourth rod, and the first rod, the second rod, the third rod, and the fourth rod are connected two by two to form four connection points, one of which is a fixed connection point P1, which is fixed to a fixed structure (e.g., the seat plate 1220) of the engagement base assembly 120, and the connection point opposite to the fixed connection point P1 is a central connection point P2. Of the four link connection mechanisms, the rods connected via the central connection point P2 are respectively connected to two front lock members and / or two rear lock members.

[0176] With the above-described interlocking assembly 12231, when at least one unlocking operation member 1221 moves from the locked position to the unlocked position, the locking member 1222 connected to the corresponding unlocking operation member 1221 moves together with the unlocking operation member 1221 and has the same moving direction, and the moving direction of the central connection point P2 of the interlocking assembly 12231 is perpendicular to the moving direction of the locking member 1222 and / or the unlocking operation member 1221.

[0177] When the unlocking operation member 1221 is in the locked position, the user can operate any of the unlocking operation members 1221 to move the locked position to the unlocked position, move the front locking member 12221 connected thereto, and further move the two front locking members 12221 synchronously in opposite directions (e.g., move closer to each other) by the action of the interlocking assembly 12231, and move the rear locking members 12222 in opposite directions (e.g., move closer to each other) by the action of the interlocking member, at which time the front locking member 12221 and the rear locking member 12222 can simultaneously release the object. When the unlocking operation member 1221 moves from the unlocked position to the locked position, the two front locking members 12221 move away from each other synchronously, and the two rear locking members 12222 also move away from each other synchronously.

[0178] In other embodiments, the two front locking members 12221 and / or the two rear locking members 12222 can be synchronously moved in the same direction by an interlocking assembly 12231.

[0179] 10A, the engagement base assembly 120 further includes an elastic device 1224 that provides a force to move the unlocking operation member to or return to the locked position. In one embodiment, the elastic device 1224 is disposed between the two front locking members 12221 and always provides a force to move the two front locking members 12221 away from each other. Optionally, the elastic device 1224 can also be disposed between the two rear locking members 12222 that always provides a force to move the two rear locking members 12222 away from each other. For example, the elastic device 1224 can be a compression spring. In another embodiment, when the locking members provided on the same side (e.g., two locking members located on the front side, or two locking members located on the rear side, or two locking members located on the right side, or two locking members located on the left side) move in the same direction, the locking members may be fixedly connected, and an elastic device is provided between at least one of the locking members and a fixed structure of the engagement base assembly 120 (e.g., the seat plate 1210 as shown in FIG. 10B), so that the unlocking operation member 1221 tends to be in the lock position. In this specification, the terms "front side", "rear side", "right side", and "left side" refer to the directions shown in, for example, FIG. 10A. For example, the lower left side of FIG. 10A is the front side of the engagement base assembly 120, and the upper right side is the rear side of the engagement base assembly 120.

[0180] Furthermore, a resilient device 1224 may also be provided between one of the locking members and the seat plate (e.g., in the case of a fixed connection between the front locking member or the rear locking member) to provide a force for the unlocking operating member to be in or return to the locked position.

[0181] 10A, in one embodiment, the two front lock members 12221 are fixedly connected to the corresponding unlock operation members 1221 via the corresponding slide members 1225, and the slide members 1225 are slidable in the slide grooves of the lock mechanism 1220, so that when a user operates the unlock operation member 1221, the front lock member 12221 and the unlock operation member 1221 connected to each other by the slide member 1225 slide in synchronization, and further, the two front lock members 12221 slide relatively. The front lock member 12221 and the unlock operation member 1221 may be connected by other means such as bolting, adhesion, etc.

[0182] Optionally, the slide member 1225 may be integrally formed with the unlocking operation member 1221 .

[0183] 10A and 10B, in one embodiment, a locking portion 12221a (FIG. 10B) is provided at one end of the front locking member 12221, and an opening is provided at a position corresponding to the locking portion 12221a of the seat plate 1210, so that the locking portion 12221a can protrude from the opening of the seat plate 1210 when the upper case of the seat plate 1210 is attached above the locking mechanism 1220. For example, the seat plate 1210 has an upper case structure with a raised front side, that is, the front part of the upper case of the seat plate 1210 forms a case structure having a large height (compared to its central part) (hereinafter, this part having a large height can be referred to as a "raised structure"), and a recess 1212 is provided at a position located at the end of the front locking member 12221 on the raised structure of the case structure, and the recess 1212 penetrates the raised structure in the vertical direction D11 to accommodate at least a part of the object. The recess 1212 is provided with an opening so that the locking portion 12221a of the front locking member 12221 protrudes from the seat plate 1210, and the locking portion 12221a protruding from this opening is located in the recess 1212 (i.e., the formed space). The rear side of the seat plate 1210 (i.e., the position corresponding to the rear locking member 12222) can have a similar structure (i.e., a raised structure, a recess, and its opening, etc.), and the description is omitted here. When an object is placed on the seat plate 1210, the recess 1212 accommodates at least a part of the object (e.g., a bracket device structure of a sleeping box), and the locking portion 12221a protrudes from the opening to lock this part of the object to the recess 1212. In one embodiment, the upper surface of the part of the locking portion 12221a protruding from the opening forms a downward inclined surface, as shown in FIG. 10B, which makes it easy for the part used for locking to move along the inclined surface to enter the recess 1212. In addition, the "front side" or "rear side" of the seat plate 1210 can be understood to mean the side of the seat plate 1210 facing the forward direction of the wheeled mobile device 11 when the seat plate 1210 is installed on the wheeled mobile device 11 shown in Figure 6A, which is the "front side", and the side of the seat plate 1210 facing the backward direction of the wheeled mobile device 11, which is the "rear side".The vertical direction D11 can be considered as the front-rear direction of the wheeled transportation device 11 (and the seat plate 1210).

[0184] Also, as shown in FIG. 10B, the raised upper case structure (specifically, the raised structure) of the seat plate 1210 is provided with an inclined surface 1213 located above the recess 1212 and opposite the opening of the recess 1212 (i.e., the position where the locking portion 12221a is located), which guides the locking of the object (e.g., a carrier, not shown) with the engagement base assembly 120.

[0185] 11A-11B, locked and unlocked states of a locking mechanism 1220 according to one embodiment of the first aspect of the present disclosure are shown. Specifically, FIG. 11A shows a cross-sectional view taken along line EE in FIG. 10B with the locking mechanism 1220 in the locked state. And FIG. 11B shows the locking mechanism 1220 switching from the locked state shown in FIG. 11A to the unlocked state.

[0186] As shown in FIG. 11A, when the lock mechanism 1220 is in a locked state, the unlocking operation member 1221 is in a locked position (i.e., an initial position), and the front locking members 12221 fixedly connected to the unlocking operation members 1221 at both ends are in their locked positions, that is, the locking portions 12221a of the front locking members 12221 protrude from the seat plate 1210. At the same time, the rear locking member 12232 is also held in its locked position. At this time, the front locking member 12221 and the rear locking member (not shown) respectively lock the object on both sides of the lateral direction D12 of the seat plate 1210. At this time, the elastic device 1224 located between the front locking members 12221 is in an initial state (e.g., an extended state), and optionally, the elastic device (not shown) located between the rear locking members (not shown) is also in an initial state (e.g., an extended state). In one embodiment, the central connection point P2 of the four-link connection mechanism of the interlocking assembly 12231 is located at the top, i.e., closer to the fixed connection point P1, as shown in FIG. 11A.

[0187] 11B, when one of the unlocking operation members 1221 is operated to move from the locked position to the unlocked position, the front locking member 12221 fixedly connected to the unlocking operation member 1221 moves with the movement of the unlocking operation member 1221, and synchronously moves the other unlocking operation member 1221 in the opposite direction via the interlocking assembly 12231, and synchronously moves the corresponding rear locking members (not shown) via the interlocking member (in this embodiment, "pulling member 12232") to contract the locking parts 12221a of the two front locking members 12221 and the locking parts (not shown) of the two rear locking members to the seat plate 1210, and further unlocks the object. At this time, the elastic device 1224 located between the front locking members 12221 has a tendency (for example, in a compressed state) to return the unlocking operation member 1221 to the locked position, and optionally, the elastic device (not shown) located between the rear locking members (not shown) is also in a compressed state. In one embodiment, the central connection point P2 of the four-link connection mechanism of the interlocking assembly 12231 is located downward and away from the fixed connection point P1, as shown in Fig. 11B. That is, when the unlocking operation member 1221 moves from the locked position to the unlocked position, the central connection point P2 of the interlocking assembly 12231 moves downward substantially perpendicular to the fixed connection point P1.

[0188] When the unlocking operation member 1221 is released, the two unlocking operation members 1221 synchronously return from their respective unlocked positions to the locked position, and the two front locking members 12221 move away from each other (e.g., separated from each other by an elastic device 1224 between them), simultaneously separating the two rear locking members (not shown) from each other, and further returning the locking mechanism 1220 to the locked state shown in Fig. 11A. In another embodiment, when the unlocking operation member 1221 is released, the two rear locking members (not shown) move away from each other by an elastic device (not shown) between them, separating the two front locking members 12221 from each other, and returning the locking mechanism 1220 to the locked state shown in Fig. 11A.

[0189] 12, a wheeled transportation device 11 according to one embodiment of the present disclosure is shown with the case of the carrier 130 removed to show the connection relationship between the bracket device 1310 of the carrier 130 and the locking mechanism 120.

[0190] As shown in FIG. 12, when the carrier 130 (i.e., as an example of the "object" described above) is attached to the seat plate 1210 via the locking mechanism 120 (the unlocking operation member 1221 is in the locked position), a portion of the engaging member 13131 (e.g., the annular structure shown in FIG. 12) of the third bracket 1313 is locked into the space defined by the recess 1212 and the locking portion 12221a, and the carrier 130 is locked to the seat plate 1210.

[0191] 13A-13Ab, there are shown schematic diagrams of a locking mechanism 1220 and a carrier 130 placed thereon according to one embodiment of the first aspect of the present disclosure, in which Fig. 13A shows the carrier 130 on the sheet plate 1210 locked by the locking mechanism 1220, and Fig. 13B shows the carrier 130 placed on the sheet plate 1210 with the locking mechanism 1220 in an unlocked state.

[0192] As shown in FIG. 13A, when the lock mechanism 1220 is in the locked state, the lock portion 12221a of the front lock member 12221 extends from the opening of the recess 1212 of the seat plate 1210 and locks the engagement member 13131 of the carrier 130 in the recess 1212.

[0193] As shown in FIG. 13B, when the locking mechanism 1220 returns from the locked state to the unlocked state, the locking portion 12221a retracts into the seat plate 1210 (e.g., into the opening of the recess 1212), at which time the engaging member 13131 of the carrier 130 can be removed from the recess 1212, i.e., the carrier 130 can be removed.

[0194] 14A-14B, an engagement base assembly 120' is shown with the seat plate top case removed to reveal a locking mechanism 1220' according to another embodiment of the first aspect of the present disclosure.

[0195] In another embodiment of the first aspect of the present disclosure, the interlocking member may be a link 12232' as shown in Fig. 14A. Specifically, the link 12232' is connected to the lock members 1222' arranged on both sides (front and rear sides as shown in Fig. 14A) of the engagement base assembly 120' in the longitudinal direction D11, and is particularly a front lock member 12221' and a corresponding rear lock member 12222' set on a diagonal line. In one example, the front lock member 12221' and the rear lock member 12222' set on a diagonal line are rotatably connected at both ends of two links 12232', respectively, and the two links 12232' are connected at their intersections (hinge connections).

[0196] When one of the unlocking operation members 1221' is operated, the two front locking members 12221' are moved in opposite directions in synchronization by the interlocking assembly 12231', so that the angle α of the two cross-connected links 12232' gradually decreases, and the links 12232' and the two rear locking members 12222' respectively connected to the two front locking members 12221' move in opposite directions to each other and approach each other. When the unlocking operation member 1221' is released, the two front locking members 12221' move away from each other in synchronization, so that the angle of the two cross-connected links 12232' gradually increases, and the two rear locking members 12222' move away from each other in the same manner.

[0197] 14B, it can be seen that in one embodiment, both ends of the link 12232' are pivotally connected from the bottom between the corresponding front locking member 12221' and rear locking member 12222'. The bottom of the front locking member 12221' and / or rear locking member 12222' is provided with a position limiting member 1226' for limiting the minimum value of the angle α between the two links 12232', i.e., preventing the two links 12232' from locking with too small an angle between them, and preventing the link 12232' from disengaging from the inner bottom of the front locking member 12221' and / or rear locking member 12222'.

[0198] 15, an engagement base assembly 120' having a retention mechanism 1250 according to an embodiment of the present disclosure is illustrated, with the upper case of the seat plate removed to show the retention mechanism 1250. As illustrated in FIG. 15, the engagement base assembly 120' of the present disclosure further includes a retention mechanism 1250 provided between the two front locking members 12221' and / or between the two rear locking members 12222' to retain the unlocking operation member 1221' in the unlocked position, i.e., to retain the engagement base assembly 120' in the unlocked state. In this way, the user does not need to continuously perform an unlocking operation on the unlocking operation member 1221' (e.g., pressing the unlocking operation member 1221') to maintain the engagement base assembly 120' in the unlocked state so that the object on the engagement base assembly 120' can be removed at any time.

[0199] Although Figure 15 shows only an embodiment in which the front lock member 12221' and the rear lock member 12222' are connected using two links (link 12232' shown in Figure 14B), it should be understood that the retention mechanism 1250 can also be applied to the case in which the front lock member 12221 and the rear lock member 12222 are connected via a traction member (the embodiment shown in Figure 10A).

[0200] 15 and 16A together, where FIG. 16A is a schematic cross-sectional view of the holding mechanism 1250 taken along the line FF in FIG. 15, showing the structural relationship between the holding mechanism 1250 and the seat plate 1210'. As shown in FIG. 15, the holding mechanism 1250 includes a touch button 1251, a buckle portion 1252, and a reset member 1255 (not shown in FIG. 15, but shown in FIG. 16A). The touch button 1251 is provided in the seat plate 1210' (only the lower case of the seat plate 1210' is shown in FIG. 15, and the upper case of the seat plate 1210' is shown in FIG. 16A), is vertically movable relative to the seat plate 1210', and can at least partially protrude from above the seat plate 1210' (specifically, its upper case, see FIG. 16A). The buckle portion 1252 is provided below the touch button 1251 so as to be movable, and is vertically movable along a slide rail 1254 on the touch button 1251. For example, the buckle portion 1252 may be a snap pin. As shown in FIG. 16A, the reset member 1255 is provided between the touch button 1251 and a fixed structure of the engagement base assembly 120' (for example, a lower case of the sheet plate 1210') and provides a force that causes the touch button 1251 to protrude upward from the sheet plate 1210', that is, the reset member 1255 allows the touch button 1251 to return from a pressed state to an initial released state.

[0201] 16A, in one embodiment, the holding mechanism 1250 further includes an elastic member 1253 provided between the touch button 1251 and the buckle portion 1252 in accordance with the movement of the buckle portion 1252 relative to the touch button 1251. Also, a holding hook 12221'b for correspondingly hooking the buckle portion 1252 of the holding mechanism 1250 is provided at a lower portion of one end remote from the lock portion 12221'a of the front lock member 12221'. A chamfer may be provided at the tip of the holding hook 12221'b for more firmly engaging with the buckle portion 1252.

[0202] 16A, when the carrier is not placed on the seat plate 1210' and the unlocking operation is not performed on the unlocking operation member 1221', the unlocking operation member 1221' is in the locked position (i.e., the initial position), and the holding mechanism 1250 is also in the initial position. At this time, the touch button 1251 of the holding mechanism 1250 protrudes from above the seat plate 1210', the buckle portion 1252 and the holding hook 12221'b of the front lock member 12221' are separated from each other, and the reset member 1255 and the elastic member 1253 are both in a released state, i.e., not compressed.

[0203] 16B and 16C, there is shown a schematic diagram of the operation process of the holding mechanism 1250 when the carrier 130 is placed on the seat plate 1210' and the carrier 130 needs to be moved away.

[0204] As shown in Fig. 16B, when the user places the carrier 130 on the seat plate 1210', the engagement member 13131 of the carrier 130 moves downward and is engaged with the recess 1212' by the lock portion 12221'a of the front lock member 12221', and at the same time, the bottom surface of the carrier 130 presses the touch button 1251, and the reset member 1255 is compressed. The elastic member 1253 connected between the touch button 1251 and the touch button 1252 moves downward as the touch button 1251 is pressed. At this time, the holding mechanism is in a standby state.

[0205] When it is desired to move the carrier 130 from the seat plate 1210', as shown in FIG. 16C, the user can operate (e.g., press) the unlocking operation member 1221', and the front locking member 12221' connected to the unlocking operation member 1221' moves in conjunction with the movement of the unlocking operation member 1221', and further, the retaining hook 12221'b of the front locking member 12221' can be moved to the retaining mechanism 1250 to hook the buckle portion 1252. More specifically, as the retention hook 12221'b moves into the retention mechanism 1250, the tip of the retention hook 12221'b (e.g., by its chamfer) causes the buckle portion 1252 to move up against the force of the elastic member 1253 relative to the touch button 1251 (i.e., the buckle portion 1252 compresses the elastic member 1253 and moves closer to the touch button 1251), until the hook-shaped portion of the retention hook 12221'b overcomes the buckle portion 1252, which is moved down by the elastic member 1253 and hooked by the retention hook 12221'b. At this time, the retaining mechanism 1250 is in a retaining state, the buckle portion 1252 is maintained engaged with the retaining hook 12221'b by the downward pressure applied to the carrier 130 and the elastic member 1253, retaining the unlocking operation member 1221' in the unlocked position, and the engaging member 13131 of the carrier 130 is not blocked by the lock portion 12221'a (i.e., the carrier 130 remains movable).

[0206] Next, when the carrier 130 is removed, the touch button 1251 again protrudes from above the seat plate 1210' by the reset member 1255, the buckle portion 1252 moves upward in accordance with the touch button 1251 and separates from the retaining hook 12221'b of the front lock member 12221', and the unlocking operation member 1221' returns to the locked position shown in Figure 16A.

[0207] Referring to FIG. 16D, a configuration of a retention mechanism 1250 according to the present disclosure is shown.

[0208] As shown in FIG. 16D, a touch button 1251 is provided in a slideway 1214' provided inside a sheet plate 1210' so as to be movable up and down along the slideway 1214'. Notches 1215' are symmetrically formed in the wall of the slideway 1214' so that a holding hook 12221'b can enter and engage with the notch 1215' when moving to a holding mechanism 1250.

[0209] Also, as shown in FIG. 16D, when attaching a carrier 130 (see FIGS. 16B and 16C) to the sheet plate 1210', the retraction distance of the locking portion 12221'a is L11, and the moving distance required for the engagement between the holding hook 12221'b and the buckle portion 1252 (i.e., the distance from the farthest end of the buckle portion 1252 of the holding hook 12221'b) is L12. The distance by which the unlocking operation member 1221' is pressed to perform unlocking is L13. In one embodiment, L11 < L12 < L13. In this way, when the carrier 130 (not shown in FIG. 16D, see FIG. 16B) is locked to the sheet plate 1210', it is ensured that the holding hook 12221'b does not catch the buckle portion 1252, and the holding hook 12221'b can catch the buckle portion 1252 only when the unlocking operation member 1221' is pressed.

[0210] The engagement base assembly of the present disclosure installs an interlocking assembly between the unlocking operation members, or installs an interlocking member between the front locking member and the rear locking member, and further installs a holding mechanism, so that when the user operates only one of the unlocking operation members, the front locking member and the rear locking member can be unlocked simultaneously, thereby providing a wheeled moving device with convenient operation and simple structure, enabling the user to easily move the carrier from the frame (e.g., with one hand), which provides a better user experience for the user.

[0211] Optionally, a support bracket having a cushioning effect is provided on the engagement base assembly so that a cushioning support can be provided to the carrier attached to the frame and the baby therein when the carrier moves, thereby providing a more comfortable and safe wheeled transportation device. In addition, by using a position limiting structure such as a position limiting finger, a position limiting bump, and / or a position limiting member in combination, the cushioning displacement of the support bracket can be limited to a certain range so that the carrier attached to the frame via the engagement base assembly moves more stably. The present disclosure is not limited to the above-mentioned mounting structure. For example, Figs. 17A to 17D show a wheeled transportation device 11A having yet another mounting structure and an engagement base assembly 120A attached thereto.

[0212] Referring to Figures 17A to 17D, Figures 17A and 17B show oblique views from different angles of a wheeled transportation device 11A according to one embodiment of the present disclosure, Figure 17C shows a front view of the wheeled transportation device 11A, and Figure 17D shows a side view of the wheeled transportation device 11A.

[0213] As shown in Figs. 17A to 17D, the wheeled transportation device 11A includes a frame 110A, an engagement base assembly 120A, and a carrier (not shown) provided on the engagement base assembly 120A. The frame 110A includes a front support bar 1110A, a rear support bar 1120A, and an upper support bar 1130A, which are pivotally connected to each other and can be folded relative to each other. Specifically, the frame 110A has a similar configuration to the embodiment described above (shown in Fig. 2), and therefore a description thereof will be omitted here. The engagement base assembly 120A is attached to the frame 110A, and can lock or unlock an object and stably place the object (not shown) on the engagement base assembly 120A, thereby improving the safety of the object during movement. By manipulating the engagement base assembly 120A, a user can easily attach and detach an object to the frame 110A. The engagement base assembly 120A will be described in detail below with reference to Figures 18A-18D.

[0214] Referring to Figures 18A to 18F, Figure 18A shows a perspective view of the engagement base assembly 120A. Figures 18B and 18C show the support structure 1240A and the lock mechanism 1220A located in the seat plate 1210A, and remove the engagement base assembly 120A of the seat plate 1210A. Figure 18D is a cross-sectional view of the engagement base assembly 120A taken along the line XX shown in Figure 18A. Figure 18E shows a partial enlarged view of the J portion shown in Figure 18D, where the unlocking operation member 1221A is in the locked position. Figure 18F shows the unlocking operation member 1221A shown in Figure 18E in the unlocked position.

[0215] As shown in FIGS. 18A and 18B, the engagement base assembly 120A includes a seat plate 1210A, a locking mechanism 1220A (shielded by the seat plate 1210A in FIG. 18A, and only an unlocking operation member 1221A is shown), and a support structure 1240A.

[0216] In one example, the seat plate 1210A can have an openwork structure (different from the seat plate 1210 of the embodiment shown in FIG. 10B). Specifically, as shown in FIG. 18A, the seat plate 1210A can form an annular structure (i.e., the middle region of the seat plate 1210A is openwork), and when the frame 110A is folded together with the engagement base assembly 120A, the user can lift or move the entire frame structure by grasping the openwork structure of the seat plate 1210A. In other words, the seat plate 1210A in this example can easily move the entire folded frame 110A without providing the carrying handle 1211 shown in FIG. 9A.

[0217] 18A, the seat plate 1210A may have a first extension 1211A, for example, the first extension 1211A may extend outward from one end (e.g., the rear end center) of the seat plate 1210A by a certain distance to provide a larger support surface (i.e., a first abutment surface) to more stably support a carrier (not shown) disposed thereover. The seat plate 1210A may also have a second extension 1212A extending from the other end (e.g., the front end) of the seat plate 1210A to provide an additional support surface (i.e., a second abutment surface), thereby improving the stability of the carrier on the frame 110A and keeping the balance after the carrier engages with the entire frame 110A. Optionally, the first abutment surface and the second abutment surface may be provided on opposite ends of the seat plate 1210A. In one example, the first extension 1211A and / or the second extension 1212A may be provided as a handle to more easily move the frame 110A in the unfolded or folded state.

[0218] As shown in Fig. 18A to Fig. 18C, the support structure 1240A is provided on both sides of the seat plate 1210A in the lateral direction, and may include, for example, two support brackets 1241A symmetrically arranged on both sides of the seat plate 1210A. Unlike the embodiment of Fig. 3A to Fig. 3C, the support brackets 1241A in this embodiment are not provided with a vibration-damping structure. Specifically, each support bracket 1241A may include a vertical rod 12411A, a first support rod 12412A, and a second support rod 12413a. The vertical rod 12411A is provided below the seat plate 1210A and is fixedly connected to the seat plate 1210A. One end of each of the first support rod 12412A and the second support rod 12413A is connected to the vertical rod 12411A, and the other end of each of the first support rod 12412A, the second support rod 12413A and the vertical rod 12411A are connected to each other so that the first support rod 12412A, the second support rod 12413A and the vertical rod 12411A form a triangular structure to stably support the seat plate 1210A and the object above it. Optionally, the connection point between the second support rod 12413A and the vertical rod 12411A is located at the center stage of the vertical direction D15 of the seat plate 1210A.

[0219] In one example, the support structure 1240A also includes a first connecting rod 1242A. The first connecting rod 1242A is a symmetrically arranged horizontal rod or a U-shaped rod. Specifically, the first connecting rod 1242A may be connected between the vertical rods 12411A on both sides. Optionally, as shown in FIG. 18C, the first connecting rod 1242A is integrally formed with the vertical rods 12411A on both sides. That is, the first connecting rod 1242A and the vertical rod 12411A are the same rod.

[0220] 17B and 18A-18C in combination, the engagement base assembly 120A is pivotally connected and mounted to the frame 110A via its support structure 1240A, where the seat plate 1210A and locking mechanism 1220A of the engagement base assembly 120A are fixedly attached to the support structure 1240A, and the seat plate 1210A provides a substantially horizontal support surface for placing an object (in this embodiment, a carrier). The support structure 1240A further includes a first connecting part 1244A and a second connecting part 1245A each pivotally connected to the frame 110A such that the engagement base assembly 120A can be folded together with the folding of the frame 110A.

[0221] Specifically, as shown in Figures 17B and 18B, one end of each of the first connecting part 1244A and the second connecting part 1245A is pivotally connected to one end of the first support rod 12412A (i.e., the end connected to the second support rod 12413A), and the other end of each of the first connecting part 1244A and the second connecting part 1245A and the other end of the first support rod 12412A are pivotally connected to different positions on the frame 110A that are pivotable relative to each other. For example, the other end of the first connecting part 1244A is pivotally connected to the upper support bar 1130A of the frame 110A, the other end of the second connecting part 1245A is pivotally connected to the rear support bar 1120A of the frame 110A, and the other end of the first support rod 12412A is pivotally connected to the front support bar 1110A of the frame 110A, so that the support structure 1240A and the entire support structure 1240A can pivot in conjunction with the pivoting of the frame 110A, thereby achieving overall folding.

[0222] 18A, 18B, and 18D, the locking mechanism 1220A is attached in the sheet plate 1210A to lock and unlock an object located on the sheet plate 1210A. The locking mechanism 1220A includes at least one unlocking operation member 1221A and at least one locking member 1222A. The unlocking operation member 1221A is provided in the sheet plate 1210A and is movable between a locked position and an unlocked position relative to the sheet plate 1210A. The difference with the unlocking operation member 1221 in the previous embodiment is that, as shown in Figures 10A and 10B, the unlocking operation member 1221 protrudes from the side of the seat plate 1210, and the user releases the lock by pressing the unlocking operation member 1221 from the side of the seat plate 1210, whereas in this embodiment, as shown in Figures 18A and 18D, the unlocking operation member 1221A protrudes from above the seat plate 1210A, and the user can release the lock by pressing the unlocking operation member 1221A downward.

[0223] As shown in FIG. 18D, the unlocking operation member 1221A is slidably connected to the unlocking operation member 1221A so that the unlocking operation member 1222A can move in response to the movement of the unlocking operation member 1221A. Specifically, when the unlocking operation member 1221A is in the locked position shown in FIG. 18D, at least a part of the unlocking operation member 1221A protrudes from the sheet plate 1210A, and an object placed on the sheet plate 1210A is locked. On the other hand, when the unlocking operation member 1221A is pressed to move from the locked position to the unlocked position, the locking member 1222A moves in response to the movement of the unlocking operation member 1221A, and unlocks the object on the sheet plate 1210A. In one example, as the unlocking operation member 1221A moves in the vertical direction, the unlocking operation member 1222A can be moved in an approximately horizontal direction to achieve unlocking. In other words, the moving direction of the unlocking operation member 1221A may be substantially perpendicular to the moving direction of the locking member 1222A.

[0224] Furthermore, the at least one locking member 1222A may be a plurality of locking members 1222A, but the connection relationship between the plurality of locking members 1222A (for example, interlocking assembly, interlocking member, etc.) is the same as in the above-mentioned embodiment, so the description will be omitted here. The specific structure of the locking member 1222A and the specific interlocking method with the unlocking operation member 1221A will be described in detail below, especially the points that differ from the locking member 1222 in the above-mentioned embodiment.

[0225] 18A and 18D, the locking member 1222A is provided with a locking portion 1222Aa, and an opening is provided in the sheet plate 1210A at a position corresponding to the locking portion 1222Aa, and the locking portion 1222Aa protrudes from the opening of the sheet plate 1210A to lock an object placed on the sheet plate 1210A. As in the above-mentioned embodiment, the sheet plate 1210A may be provided with a corresponding recess, inclined surface, etc., and the description thereof will be omitted here.

[0226] In this embodiment, the lock member 1222A may have a first portion 12221A and a second portion 12222A fixedly connected to each other, as shown in FIG. 18D to FIG. 18F. The second portion 12222A is connected to the lower side of the first portion 12221A and extends from one end of the first portion 12221A to the unlocking operation member 1221A. The end of the first portion 12221A is a certain distance away from the unlocking operation member 1221A. The lock portion 1222Aa is provided at the end of the first portion 12221A (i.e., the end close to the unlocking operation member 1221A), and the second portion 12222A extends to one end of the unlocking operation member 1221A and is slidably connected to the unlocking operation member 1221A. In one example, the first portion 12221A and the second portion 12222A may be separate parts and fixedly connected via bolts, etc. Alternatively or alternatively, the first portion 12221A and the second portion 12222A may be integrally molded.

[0227] Correspondingly, as shown in Figures 18E and 18F, the unlocking operation member 1221A is further provided with a drive pin 12211A, and an oblique hole 1222Ab is provided at one end of the second part 12222A of the locking member 1222A close to the unlocking operation member 1221A, and the drive pin 12211A of the unlocking operation member 1221A can slide within the oblique hole 1222Ab, that is, the drive pin 12211A can slide relative to the oblique hole 1222Ab with the operation of the unlocking operation member 1221A. In one example, as shown in Figures 18E and 18F, the oblique hole 1222Ab can be arranged so as to be inclined downward from the inward and outward direction.

[0228] 18E and 18F, Fig. 18E shows the unlocking member 1221A in the locked position, and Fig. 18F shows the unlocking member 1221A in the unlocked position. When the unlocking member 1221A is operated, the drive pin 12211A slides relative to the oblique hole 1222Ab in accordance with the movement of the unlocking member 1221A, and the locking member 1222A can be moved from the unlocked position to the unlocked position. For example, referring to FIG. 18E and FIG. 18F, when unlocking is required, the user can press the unlocking operation member 1221A downward, and the unlocking operation member 1221A moves from the locked position (see FIG. 18E) to the unlocked position (see FIG. 18F), and the driving pin 12211A fixed to the unlocking operation member 1221A moves downward accordingly. In other words, the downward movement of the driving pin 12211A of the unlocking operation member 1221A causes it to slide relatively to the oblique hole 1222Ab of the locking member 1222A. , the locking member 1222A is forced to move in a direction perpendicular or substantially perpendicular to the movement direction of the drive pin 12211A (e.g., the lateral direction D16 of the engagement base assembly 120A), causing the locking member 1222A to move to an unlocked position (e.g., in this embodiment, the locking members 1222A on the same side move toward each other), and the locking portion 1222Aa of the locking member 1222A extending from the sheet plate 1210A is pulled back to the sheet plate 1210A, unlocking an object provided on the sheet plate 1210A.

[0229] The lock mechanism 1220 of this embodiment may also be provided with an elastic device 1224A that provides a force to move the unlocking operation member 1221A to or return it to the locked position. In one example, as shown in FIG. 18D, the elastic device 1224A can be disposed between two locking members 1222A on the same side, and tends to move the two locking members 1222A away from each other. Referring to FIG. 18D to FIG. 18F, when the unlocking operation member 1221A is released, the unlocking operation member 1222A can be moved to its locked position by the elastic device 1224A, and the unlocking operation member 1221A moves upward to the locked position by the force of the drive pin 12211A at the oblique hole 1222Ab.

[0230] In a second aspect of the present disclosure, a wheeled mobility device 21 is also provided.

[0231] Referring to FIG. 19A, FIG. 19A shows a schematic perspective view of a wheeled transportation device 21 according to a second embodiment of the present disclosure.

[0232] 19A, the wheeled transportation device 21 can include a frame 2100, an engagement base assembly 2200, and a carrier 2300. The engagement base assembly 2200 can be attached to the frame 2100, and the carrier 2300 can be secured to the frame 2100 via the engagement base assembly 2200 for movement therewith. In one embodiment, the carrier 2300 includes a case 2310 and a bracket device 2320, where the case 2310 (also referred to as a "mounting portion") provides a storage space (i.e., a storage space) for carrying an infant or a pet, and the bracket device 2320 is attached to the case 2310 to support the case 2310 and is engageable with the engagement base assembly 2200 such that the carrier 2300 can be removably attached to the frame 2100 via the bracket device 2320.

[0233] The frame 2100 and the engagement base assembly 2200 of the wheeled transportation device 21 and the connection relationship between the two will be specifically described below.

[0234] First, referring to Figures 19B and 19C, Figure 19B shows a perspective schematic view of a frame 2100 according to a second embodiment of the present disclosure, and Figure 19C shows a perspective schematic view of the frame 2100 shown in Figure 19B from another angle.

[0235] The frame 2100 of the present disclosure includes a front support bar 2110, a rear support bar 2120, and an upper support bar 2130, where the front support bar 2110 is connected to the front wheels 2181, the rear support bar 2120 is connected to the rear wheels 2182, and the upper support bar 2130 is connected to the handrails 2170.

[0236] In one embodiment, as shown in Figures 19B and 19C, one end of the front support bar 2110, one end of the rear support bar 2120 and one end of the upper support bar 2130 are pivotally connected to each other at the first pivot part A2, and the front support bar 2110, the rear support bar 2120 and the upper support bar 2130 can be folded relative to each other through the first pivot part A2. Specifically, the front support bar 2110 may have a U-shaped structure, and the rear support bar 2120 may be formed by two parallel rod members fixedly connected by one horizontal rod, and both ends of the front support bar 2110 are pivotally connected to one ends of the two rod members of the rear support bar 2120 at the first pivot part A2. At least one front wheel 2181 is connected to the underside of the front support bar 2110, and the other ends of the two rods of the rear support bar 2120 are respectively connected to the corresponding rear wheels 2182. The handrail 2170 is located at the other end (i.e., the top end) of the upper support bar 2130 and is pivotally connected to the upper support bar 2130 via a second pivot portion B2. The present disclosure is not limited to the above configuration, and the front support bar 2110 may have a V-shaped or I-shaped structure, and the rear support bar 2120 may be provided in an integrally molded U-shaped structure, etc.

[0237] In one example, as shown in FIG. 19B, the size of the rear wheels 2182 can be made larger than the size of the front wheels 2181 in order to make the overall structure of the wheeled transportation device 21 more stable.

[0238] 19A and 19B, the frame 2100 may include a connection assembly (described below) for attaching the engagement base assembly 2200 to the frame 2100, which may be pivotally coupled to the frame 2100 such that the connection assembly allows the engagement base assembly 2200 to pivot as the frame 2100 folds. The connection assembly may also function as a support structure for the engagement base assembly 2200, such as functioning as "support structure 1240" and / or "support structure 1240A" as described in the first aspect of the present disclosure.

[0239] In one embodiment, as shown in FIGS. 19B and 19C, the connection assembly can include a first coupling 2140, a secondary support member 2150, and a linkage member 2160.

[0240] As shown in FIG. 19B, one end of the first coupling 2140 is pivotally connected to the front support bar 2110 at a first pivot point O21. The auxiliary support member 2150 is pivotally connected to the other end of the first coupling 2140 at a second pivot point O22 and is pivotally connected to the rear support bar 2120 at a third pivot point O23. One end of the connection part 2160 is pivotally connected to the upper support bar 2130 at a fourth pivot point O24, and the other end is pivotally connected to the auxiliary support member 2150 at a fifth pivot point O25. Through the connection of the above pivot points, the auxiliary support member 2150 can be driven to pivot when the frame 2100 is folded. Here, the fifth pivot point O25 is between the second pivot point O22 and the third pivot point O23, i.e. the second pivot point O22 is between the first pivot point O21 and the fifth pivot point O25. Optionally, the fifth pivot point O25 overlaps with the second pivot point O22.

[0241] 19A to 19C, the interlocking member 2160 may have a substantially S-shaped structure, which avoids interference with the rear support bar 2120, the seat plate 2200, or other members when the frame 2100 is folded, i.e., forms an avoidance structure. Specifically, the substantially S-shaped structure sequentially includes a first segment 2161, a second segment 2162, and a third segment 2163. Here, the second segment 2162 is substantially perpendicular to the first segment 2161, and the third segment 2163 is substantially perpendicular to the second segment 2162. When the frame 2100 is unfolded, the first segment 2161 substantially overlaps with the upper support bar 2130. The present disclosure is not limited thereto, and the interlocking member 2160 may be designed to avoid other shapes or structures of other members when folded. Furthermore, if other members are adjusted so that there is no interference between multiple lever members or between members when folding, interlocking member 2160 may be in the form of a straight lever.

[0242] In a specific example, two first couplings 2140 may be provided, one end of which is connected to each of the front support bars 2110 on both sides, and the auxiliary support member 2150 may have a substantially U-shaped structure, and both ends of the auxiliary support member 2150 may be connected to the other ends of the corresponding first couplings 2140. In addition, the auxiliary support member 2150 may be provided as two separate straight lever members respectively connected between the first connection part 2140 on the frame 2100 side and the rear support bar 2120, but the present disclosure is not limited thereto.

[0243] In one embodiment, as shown in FIG. 19B, when the frame 2100 is unfolded, the first coupling 2140 and the auxiliary support member 2150 are arranged horizontally, and the first pivot point O21, the second pivot point O22, the third pivot point O23, and the fifth pivot point O25 are in the same horizontal plane, and optionally, these pivot points are substantially in a straight line.

[0244] 20 and 21, FIG. 20 illustrates a perspective view of an engagement base assembly 2200 according to the present disclosure, and FIG. 21 illustrates a perspective view of the engagement base assembly 2200 shown in FIG. 20 after removal of the seat plate 2210.

[0245] As shown in FIG. 20 and FIG. 21, the engagement base assembly 2200 includes a seat plate 2210 and a locking mechanism 2220 for locking a bracket 2300 (not shown in FIG. 20 and FIG. 21, see FIG. 19A) to the seat plate 2210. Here, the engagement base assembly 2200 can have a plurality of engagement point positions for supporting and positioning the carrier 2300, and can enhance the connection stability between the carrier 2300 and the engagement base assembly 2200. For example, as shown in FIG. 20, the plurality of engagement point positions may be symmetrically arranged on the engagement base assembly 2200 along the longitudinal center line M2 of the engagement base assembly 2200, so that the carrier is stably locked to the seat plate 2210 of the engagement base assembly 2200. Optionally, four engagement point positions can be provided, with centers symmetrically arranged on the engagement base assembly 2200.

[0246] Also, as shown in FIG. 20, the seat plate 2210 may have a first extension 2211. The first extension 2211 extends from one end of the seat plate 2210 (for example, the rear end, i.e., the end close to the rear wheel 2182 as shown in FIGS. 19A and 19B). More specifically, the first extension 2211 may extend a certain distance rearward from the center of the rear end of the seat plate 2210 to provide a large support surface and more stably support the carrier 2300 thereon (not shown in FIG. 20). Note that the "rear end" here refers to the rear side with respect to the frame 2100 (for example, the rear wheel 2182 is located on the rear side of the frame 2100), and as shown in FIG. 19B, the left side is the front side of the frame 2100 and the right side is the rear side of the frame 2100. Correspondingly, as shown in FIG. 20, the left side is the front end of the seat plate 2210 and the right side is the rear end of the seat plate 2210. The first extension 2211 may also be provided in the form of a carrying hand to facilitate lifting and moving after folding. In one embodiment, the seat plate 2210 can also be arranged in an openwork form, for example an annular structure (i.e., the middle region of the seat plate 2210 is openwork) as shown in FIG. 20, and when the frame 2100 is folded together with the engagement base assembly 2200, the openwork design of the seat plate 2210 can grip, lift, or move the entire frame structure (see, for example, FIG. 31).

[0247] Alternatively or additionally, the seat plate 2210 may have a second extension 2212 extending from a front end of the seat plate 2210 (i.e., near one end of the front wheels 2181) to provide an additional support surface, thereby improving the stability of the carrier on the frame 2100 and allowing the carrier to remain balanced after engaging the entire frame 2100.

[0248] In one embodiment, as shown in Figures 20 and 21, the engagement base assembly 2200 may be disposed on a sheet plate support member 2230 and connected to the frame 2100 via the sheet plate support member 2230 (see Figure 19A). In one embodiment, as shown in Figure 21, the sheet plate support member 2230 may have a U-shaped structure, where the locking structure 2220 of the engagement base assembly 2200 is provided between both ends of the U-shaped structure and / or between a lateral segment (i.e., between two longitudinal segments) of the U-shaped structure, although the present disclosure is not limited thereto. The connection between the sheet plate support member 2230 and the frame 2100 will be described in detail below in conjunction with Figures 22 and 23.

[0249] Referring to Figures 22 and 23, Figure 22 shows a schematic perspective view of the frame 2100 shown in Figure 19B and the sheet plate support member 2230 attached to the frame 2100, and Figure 23 shows a schematic perspective view of the frame 2100 and the sheet plate support member 2230 shown in Figure 22 from another angle.

[0250] In one embodiment of the present disclosure, as shown in Figures 22 and 23, the auxiliary support member 2150 is disposed outside the sheet plate support member 2230 and connected to the sheet plate support member 2230, allowing the sheet plate support member 2230 to move synchronously with the auxiliary support member 2150, thereby causing the engagement base assembly 2200 (not shown in Figures 22 and 23, see Figure 24) attached to the sheet plate support member 2230 to move synchronously, thereby achieving synchronous folding of the engagement base assembly 2200 and the frame 2100. Here, the other end of the first coupling 2140 is inserted between the sheet plate support member 2230 and the auxiliary support member 2150. For example, the auxiliary support member 2150 and the sheet plate support member 2230 are connected to each other at the second pivot point O22 via a lever member drilled in the first coupling 2140, and are arranged on both sides of the first coupling 2140, so that the auxiliary support member 2150 and the sheet plate support member 2230 can be rotated synchronously with respect to the first coupling 2140. In addition, the other end of the interlocking member 2160 (i.e., the end connected to the auxiliary support member 2150) is inserted between the sheet plate support member 2230 and the auxiliary support member 2150. Optionally, the auxiliary support member 2150 may be fixedly coupled to the sheet plate support member 2230, or the two may be integrally formed. In another embodiment, the auxiliary support member 2150 and the seat plate support member 2230 can both be connected to the engagement base assembly 2200 .

[0251] In the above-mentioned embodiment, the fixedly connected auxiliary support member 2150 and the seat plate support member 2230 can be regarded as the second connection part of the connection assembly in a combined form. However, it should be understood that the second connection part may include only the seat plate support member (not shown). For example, in an embodiment in which the second connection part includes only the seat plate support member, the seat plate support member has a U-shaped structure and is pivotally connected to the first connection part 2140, the interlocking member 2160, and the rear support bar 2120, respectively, so that it can pivot as the frame 2100 is folded, and further pivot the engagement base assembly 2200 fixed to the seat plate support member.

[0252] Further referring to Figures 24 to 27, Figure 24 shows a schematic oblique view of the frame 2100 of the present disclosure and the engagement base assembly 2200 attached to the frame 2100, Figure 25 shows a schematic oblique view from another angle of the frame 2100 and the engagement base assembly 2200 shown in Figure 24, Figure 26 shows a side view of the wheeled transportation device 21 shown in Figure 19A, and Figure 27 shows a front view of the wheeled transportation device 21 shown in Figure 26 after the carrier 2300 has been removed.

[0253] 24 and 25, when the frame 2100 is unfolded, the engagement base assembly 2200 of the present disclosure can be positioned at a lower position of the frame 2100. For example, compared to the engagement base assembly 120 and the engagement base assembly 120A according to the first aspect of the present disclosure, the engagement base assembly 2200 can be at a lower position.

[0254] Specifically, in one embodiment, the engagement base assembly 2200 is positioned at a lower height than the first pivot portion A2, and may be disposed, for example, close to the lower end of the front support bar 2110 or at approximately the same height as the lower end of the front support bar 2110. More specifically, as shown in FIG. 26, the height H1 at the position where the engagement base assembly 2200 is located may be smaller than the median value of the overall height H2 of the frame 2100, and in one example, the height H1 may be less than or close to one-third of the overall height H2 of the frame 2100. By installing the engagement base assembly 2200 in this manner, i.e., at a lower position of the frame 2100, the user can install and position the carrier 2300 (see FIG. 19A) on the engagement base assembly 2200 more conveniently and labor-savingly, thereby improving the convenience of use and the user experience, and the frame 2100 can be applied to carriers 2300 of more different sizes (e.g., different heights), thereby improving suitability for use. It should be noted that the engagement base assembly 2200 may be mounted to the frame 2100 using the support structure 1240A described in the first aspect of the present disclosure and positioned at a height lower than the first pivot portion A2, although the present disclosure is not limited thereto.

[0255] 24 and 25, the center of gravity G of the engagement base assembly 2200 provided at a lower position can be offset to the rear wheel 2182 with respect to the first pivot portion A2, which contributes to improving the stability of the frame 2100. In detail, after the carrier 2300 (see FIG. 26) is attached to the frame 2100, the center of gravity G of the engagement base assembly 2200 is moved backward, so that the pet in the carrier 2300 does not approach the tip of the carrier 2300 (at this time, the weight of the pet is concentrated at the tip of the carrier 2300) and the chassis does not overturn, which helps to improve the stability of the entire structure of the wheeled transportation device 21. For example, in one embodiment, the center of gravity of the engagement base assembly 2200 may be close to or located on a plane formed by the pair of rear support bars 2120.

[0256] 26 and 27, when the frame 2100 is unfolded, the horizontal distance L22 between the rear wheel 2182 and the end of the frame 2100 (e.g., the handrail 2170) is smaller than the horizontal distance L21 between the front wheel 2181 and the rear wheel 2182. In addition, the width W23 between the support rods on both sides may be between the distance W21 between the two front wheels 2181 and the distance W22 between the two rear wheels 2182.

[0257] 28 to 31, the folding process of the frame 2100 and the engaging base assembly 2200 is shown, with FIG. 28 showing a side view of the frame 2100 and the engaging base assembly 2200 shown in FIG. 24 when fully expanded, FIG. 29 showing a side view of the frame 2100 and the engaging base assembly 2200 shown in FIG. 28 during the process of contracting, FIG. 30 showing a side view of the frame 2100 and the engaging base assembly 2200 shown in FIG. 28 after being fully contracted, and FIG. 31 showing a front view of the frame 2100 and the engaging base assembly 2200 shown in FIG. 30.

[0258] As shown in FIGS. 28-30, the frame 2100 of the present disclosure can be folded for easy transport and storage. Specifically, the handrail 2170 of the frame 2100 is pivotally connected to the upper support bar 2130 via the second pivot portion B2 and can be folded relative to the upper support bar 2130. The front support bar 2110, the rear support bar 2120 and the upper support bar 2130 are pivotally attached to the first pivot portion A2 and can be folded relative to each other. Also, the engagement base assembly 2200 can be pivoted via the connecting parts as the frame 2100 is folded. Specifically, in one embodiment, when the current support rod 2110, rear support bar 2120 and upper support bar 2130 are folded relative to one another, the interlocking member 2160 is moved, which in turn causes the auxiliary support member 2150 to pivot, and the seat plate support member 2230 fixedly connected to the auxiliary support member 2150 and the engagement base assembly 2200 attached to the seat plate support member 2230 can also be pivoted by the folding of the frame 2100.

[0259] In one embodiment, when the frame 2100 is folded, the front support bar 2110, the rear support bar 2120 and the upper support member 2130 are brought close to each other, and the connection assembly pivots the rear end of the engagement base assembly 2200 (e.g., the end where the first extension portion 2211 is provided, i.e., the end of the engagement base assembly 2200 that is closer to the rear wheel 2182 or the rear support bar 2120) toward the first pivot portion A2. More specifically, as shown in FIG. 29 and FIG. 30, as the front support bar 2110, the rear support bar 2120 and the upper support bar 2130 are folded together, the upper support bar 2130 pivots the interlocking member 2160, the front support bar 2110 pivots the first connecting part 2140, and the auxiliary support member 2150 pivots toward the first pivot portion A2 under the action of the first connecting part 2140 and the interlocking member 2160, and further pivots toward the auxiliary support member 2150. The connected seat plate support member 2230 is driven so that the vertical rear ends of the seat plate support member 2230 and the locking member 2200 attached thereto are pivoted toward the first pivot portion A2 (as viewed from FIG. 29, the engagement base assembly 2200 is folded so that its upper surface pivots toward the front side of the frame 2100), and as the frame 2100 folds, it is stored in the overall configuration of the frame 2100, and is in a fully folded state as shown in FIG. 30.

[0260] With further reference to FIG. 30, when the frame 2100 is fully folded, i.e., the front support bar 2110, the rear support bar 2120, the upper support bar 2130 and the handrails 2170 are folded in their closest positions to one another, the engagement base assembly 2200 is stored between the upper support bar 2130, the front support bar 2110 and the rear support bar 2120 as it pivots.

[0261] In addition, some or all of the structures of the engaging base assembly 120, 120', 120A according to the first aspect of the present disclosure and the engaging base assembly 2200 according to the second aspect of the present disclosure may be used in combination or interchangeably without affecting the structural integrity.

[0262] The third aspect of the present disclosure relates to a carrier, in particular to a carrier that is lightweight and has high structural strength. Here, for convenience, similar structures in the following different examples have similar marks, for example, the marks of the carriers in the first to seventh examples are "3100" to "3700", respectively.

[0263] 32A and 32B are schematic diagrams showing the appearance of a carrier 3100 of a first embodiment of the third aspect of the present disclosure from different perspectives. As shown in Fig. 32A and 32B, the carrier 3100 includes a case 3110 and a bracket device 3120, and the case 3110 (which may also be referred to as a "mounting part") includes a bottom 3111 (i.e., a case bottom) and a peripheral wall 3112 connecting the bottom 3111, and the bottom 3111 and the peripheral wall 3112 surround and define a storage space 3113 (i.e., a storage space for children or animals), where the upper surface of the bottom 3111 is located in the storage space 3113, and the lower surface of the bottom 3111 forms the bottom surface of the case 3110. In this embodiment, the storage space 3113 can be used to hold a child, i.e., the carrier in this embodiment is a child carrier, but the present disclosure is not limited to this embodiment. For example, in another embodiment, the storage space can be used to hold a pet. Also, in this embodiment, the case 3110 can be made of a foam material such as expanded polypropylene (EPP), expanded polyethylene (EPE), expanded ethylene oxide (EPO), etc., and the carrier device can be made of metal or other more rigid materials, but the present disclosure is not limited to this embodiment.

[0264] 32B and 32C, Fig. 32C is an exploded schematic view of some of the components of the carrier 3100 of the first embodiment of the third aspect of the present disclosure. As shown in Fig. 32B and 32C, the bracket device 3120 includes a first bracket 3121, two second brackets 3122, a third bracket 3123, and a fixing assembly 3124 connecting the case 3110 and the third bracket 3123, the first bracket 3121 is coupled to the case 3110 and is provided around the peripheral wall 3112 of the case 3110, and the two second brackets 3122 are The second brackets 3122 are coupled to the first bracket 3121 and disposed spaced apart from each other along the longitudinal axis direction D31 of the case 3110 (disposed on both sides of the center line of the long side of the case 3110), and each second bracket 3122 is coupled to the case 3110 and extends from one side of the peripheral wall 3112 of the case 3110 to the other side of the peripheral wall 3112 of the case 3110 via the bottom 3111 of the case 3110 along the transverse axis direction D32 of the case 3110. By providing the two second brackets 3122 at intervals along the peripheral wall 3112 in this manner, the case 3110 can be firmly supported and the impact resistance of the case 3110 can be improved. The third bracket 3123 is disposed on one side of the bottom 3111 of the case 3110, and is spaced apart from the bottom 3111 of the case 3110 (particularly from the lower surface of the bottom 3111 of the case 3110, i.e., the bottom surface of the case 3110) by the fixing assembly 3124, the first bracket 3121 and the third bracket 3123 are disposed substantially horizontally, and the first bracket 3121 and the third bracket 3123 are disposed vertically on the upper and lower sides of the bottom 3111 of the case 3110. Note that in this embodiment, the third bracket 3123 and the bottom 3111 of the case 3110 may not be in contact with each other at all, but the present disclosure is not limited to this embodiment.

[0265] 32D and 32E, Fig. 32D shows a schematic diagram of the carrier 3100 of the first embodiment of the third aspect of the present disclosure when it is attached to the base 3B0, and Fig. 32E shows a schematic diagram of a part of the structure of the carrier 3100 of the first embodiment of the third aspect of the present disclosure when it is attached to the base 3B0. As shown in Fig. 32D and 32E, the third bracket 3123 is used to cooperate with the engagement structure 3B1 of the base 3B0 so that the carrier 3100 can be mounted on the base 3B0 by cooperation with the engagement structure 3B1 of the third bracket 3123, where the cooperation between the third bracket 3123 and the engagement structure 3B1 can be achieved by a plurality of engagement portions 3B11 between the third bracket 3123 and the engagement structure 3B1. Specifically, as shown in Fig. 32E, in this embodiment, the base 3B0 may include four engagement portions 3B11 to form four engagement point positions with the engagement member 31231, where the four engagement portions 3B11 are provided in two pairs, and the four engagement point positions are also provided in two pairs, and are provided on opposite sides of the base 3B0, i.e., along the horizontal axis direction D32, so as to be located on two long sides of the engagement member 31231, respectively. In another embodiment, in addition to the annular structural member, the engagement member 31231 may be a single engagement bar or two parallel engagement bars, and the base 3B0 has at least one pair of snap portions, and the engagement member 31231 is fixedly engaged on one side or both sides by the at least one pair of engagement portions.

[0266] In addition, when the carrier 3100 is attached to the base 3B0, the center of gravity of the carrier 3100 is located on the upper side of the base 3B0 relative to the base 3B0 because the carrier 3100 has a long size structure. Therefore, when a user wants to release the attachment between the carrier 3100 and the base 3B0, it is necessary to operate the unlock button and to pull up the carrier 3100 so that the hook is pressed and the unlocking is not completed smoothly, so that the user can complete the unloading while holding the handle and avoid the carrier 3100 from being momentarily tilted due to the center of gravity being shifted relative to the base 3B0.

[0267] The configuration of the carrier of the present disclosure is not limited to this embodiment. For example, in another embodiment, the bracket device can include a second bracket disposed. Or, the bracket device can include two or more second brackets to provide a better support effect for the case. Also, in another embodiment, the third bracket and the fixing assembly can be omitted, that is, the case does not need to be used in combination with the base.

[0268] In this embodiment, the base 3B0 is attached to the vehicle seat via support legs 3B2 and a number of fixing devices 3B3 (e.g., International Standard Organization Fixtures, InternAtionAl StAndArds OrgAnizAtion FIX) so that the carrier 3100 can be attached to the vehicle seat (not shown) via the base 3B0. In another embodiment, the base may also be attached to the vehicle seat via the vehicle seat belt.

[0269] Specifically, as shown in FIG. 32E, the third bracket 3123 includes an engagement member 31231, two first structural reinforcement members 31232, 31233, and a second structural reinforcement member 31234, where the engagement member 31231 may be a ring-shaped structure, the two first structural reinforcement members 31232, 31233 are arranged spaced apart from each other along the vertical axis direction D31 of the case 3110, the two first structural reinforcement members 31232, 31233 each extend approximately along the horizontal axis direction D32 of the case 3110 and are connected to the engagement member 31231, and the two first structural reinforcement members 31232, 31233 are respectively arranged on both sides of the engagement member 31231 and define two engagement regions that limit the movement range of the base 3B0 (when the engagement member 31231 engages with the engagement structure 3B1) in the vertical axis direction D31. Referring also to FIG. 32C, the second bracket 3122 may be a U-shaped structural member, and the second bracket 3122 includes two vertical portions 31221 and a horizontal portion 31222, the two vertical portions 31221 being connected approximately vertically to the first bracket 3121, and the horizontal portion 31222 being connected approximately vertically to the fixing assembly 3124.

[0270] Also, referring to Fig. 32E and Fig. 32F, Fig. 32F is a schematic cross-sectional view of a carrier 3100 according to a first embodiment of the third aspect of the present disclosure. As shown in Fig. 32F, the center portion of the second structural reinforcement member 31234 faces the bottom 3111 of the case 3110, and the height of the center portion is higher than the height of both ends, and has a curved shape. In another embodiment, the center portion can also selectively abut against the bottom 3111 of the case 3110 (particularly its bottom surface). 32E, the second structural reinforcement member 31234 is located between the two first structural reinforcement members 31232, 31233, the distance between the second structural reinforcement member 31234 and the first structural reinforcement member 31232 is approximately equal to the distance between the second structural reinforcement member 31234 and the first structural reinforcement member 31233, and the cross-sectional area of ​​the tube of the second structural reinforcement member 31234 may be equal to or greater than the cross-sectional area of ​​the tube of the two first structural reinforcement members 31232, 31233. With the above configuration, when the carrier 3100 carries an infant or other objects, a force-receiving support member supported by the second structural reinforcement member 31234 can be provided in the center of the bottom 3111 of the case 3110. Furthermore, when the third bracket 3123 is subjected to an external force, it can strongly resist a large impact force, so that the bracket device 3120 has a high impact resistance and is not easily deformed by force, but the structure of the bracket device of the present disclosure is not limited to this embodiment and is determined according to actual design needs. For example, in another embodiment, if the carrier 3100 is not a long case structure but a case structure with four sides of approximately equal length, the installation of the second structural reinforcement member can be omitted, or if the carrier 3100 is a case structure that is long along the vertical axis direction D31, multiple second structural reinforcement members can be further installed to give the case 3110 a high impact resistance. Also, in another embodiment, the third bracket can only include one first structural reinforcement member located on one side of the engagement member.In another embodiment, the carrier 3100 further includes at least one second bracket along the horizontal axis direction D32, and in this embodiment, the at least one second bracket has a long vertical portion, and the at least one second bracket extends from one side of the peripheral wall 3112 to the other side of the peripheral wall 3112 along the vertical axis direction D31 through the bottom portion 3111, thereby further strengthening the support force to the case 3110 and improving the impact resistance of the case 3110. In another embodiment, the carrier 3100 does not need to include the first structural reinforcement members 31232, 31233 and the second structural reinforcement member 31234, but further includes a plurality of second brackets 3122, which are directly connected to the third bracket 3123, so that the installation positions of the plurality of second brackets 3122 correspond to different cross-sectional areas along the vertical axis direction D31 of the case 3110, and the impact resistance of the case 3110 can be improved.

[0271] 32C, in one embodiment, the first bracket 3121 may be an annular structure, the first bracket 3121 defines a first plane surrounding the first plane, and the engagement member 31231 defines a second plane surrounding the second plane, the area of ​​the second plane may not be larger than the area of ​​the first plane, and the area of ​​the second plane is approximately close to the area of ​​the bottom 3111 of the case 3110. The first plane and the second plane correspond to the same central axis L (i.e., the central axis L passes through the centers of the first plane and the second plane), and the second structural reinforcement member 31234 may be disposed approximately close to or adjacent to the central axis.

[0272] Also, as shown in FIG. 32B, the case 3110 further includes an accommodating structure 3114, which is a recess structure, and includes a ring-shaped recess 31141 and a U-shaped recess 31142 for partially accommodating the first bracket 3121 and the second bracket 3122, thereby firmly coupling the case 3110 to the bracket device 3120. In another embodiment, the first and second brackets may be fully accommodated in the accommodating structure so as to be substantially flush with the case surface. It should be understood that in another embodiment, the accommodating structure may be omitted. Also, in another embodiment, the accommodating structure may include only a ring-shaped recess that partially accommodates the first bracket or a U-shaped recess that partially accommodates the second bracket.

[0273] Further, as shown in FIG. 32D to FIG. 32F, the case 3110 (e.g., foam material) can have a first part and a second part. The first part is provided above the bracket device 3120 (specifically, above the first bracket 3121), and the second part is connected below the first part, and the thickness T1 of the side wall close to the second part of the first part is larger than the thickness T2 of the side wall of the second part, and the thickness of the side wall of the first part can be gradually reduced upward and outward, forming a smooth upper edge curved upward and outward, which can increase comfort when contacted and reduce discomfort when a collision occurs. In one example, the first part and the second part can be integrally molded, or can be manufactured separately and then joined to each other. Referring to FIG. 32B and FIG. 32F, the surfaces of the case 3110 and the bracket device 3120 are approximately congruent, and the outer wall of the first part and the outer surface of the first bracket 3121 of the bracket device 3120 are also approximately flush with each other. Of course, in other embodiments, the bracket device 3120 may be slightly recessed into the outer surface of the case 3110 without regard to the flatness of the entire outer surface of the carrier, or the sidewall thickness T1 of the first portion proximate to the second portion may be equal to the sidewall thickness T2 of the second portion, and the bracket device 3120 may at least partially protrude into the outer surface of the case 3110.

[0274] By installing the carrier device (and devices provided on the carrier device, for example, ceiling lock portions 4124, 4224, 4324 and / or pivot portions of handles 4160, 4360 as shown in Figures 40, 55, 62A, and 62D below) on the outer surface of the case and lower than the first part of the case, and by positioning the ceiling frame supporting the ceiling (see, for example, Figures 59A and 62A) around the outer surface of the first part of the case and lower than the upper edge of the first part, safety can be further improved by protecting the animal in the carrier from direct impact with rigid metal fittings (for example, a bracket device, ceiling lock portion, roof frame, or U-shaped metal fittings for the handle, etc.).

[0275] Further, the fixing assembly 3124 includes four first connecting brackets 31241, as shown in FIG. 32C, each first connecting bracket 31241 connects a corresponding second bracket 3122 to a corresponding third bracket 3123, specifically, each first connecting bracket 31241 connects a corresponding second bracket 3122 to a corresponding first structural reinforcement member 31232, 31233. In one embodiment, the fixing assembly 3124 further includes a guide assembly including four guide members 31242A, 31242B, 31242C, 31242D, where the guide members 31242A and 31242B are substantially vertically connected to the first structural reinforcement member 31232, and the guide members 31242C and 31242D are substantially vertically connected to the first structural reinforcement member 31233, and the four guide members 31242A, 31242B, 31242C, 31242D are disposed within a second plane surrounded by the engagement member 31231, and each of the four Located at a location corresponding to the first connecting bracket 31241, the user can guide the third bracket 3123 to the engagement structure 3B1 by two guide members 31242A, 31242B located in the engagement area on one side of the engagement member 31231, or two other guides 31242C, 31242D located in the engagement area on the other side of the engagement member 31231, so that the base 3B0 can be positioned at different positions relative to the carrier 3100, for example, the base 3B0 may be positioned on both sides along the longitudinal direction D31 of the bottom 3111 of the carrier 3100.

[0276] However, the number and installation locations of the guide members of the present invention are not limited to this embodiment. For example, in another embodiment, the fixing assembly can include guides arranged in sets. It should be understood that in another embodiment, the guides can be omitted in sets.

[0277] Also, in this embodiment, the guide member 31242 may be a sheet-like structure made of plastic, metal, or other rigid material, although the disclosure is not limited to this embodiment.

[0278] 32C, 32G, 32H and 32I, FIG. 32G is a top view of the carrier 3100 according to the first embodiment of the third aspect of the present disclosure, FIG. 32H is a partial structural cross-sectional view of the carrier 3100 according to the first embodiment of the third aspect of the present disclosure, and FIG. 32I is another partial structural cross-sectional view of the carrier 3100 according to the first embodiment of the third aspect of the present disclosure. As shown in FIG. 32C, 32G, 32H and 32I, the fixing assembly 3124 further includes a plurality of bracket connecting members 31243 (shown in FIG. 32G), a plurality of locking sets 31244 (shown in FIG. 32H and FIG. 32I), and a plurality of second connecting brackets 31245 (shown in FIG. 32C) that connect the third bracket 3123. In this embodiment, as shown in Fig. 32C, a plurality of second connection brackets 31245 can be attached to both sides of the engagement member 31231 along the longitudinal axis direction D31, thereby making the connection between the case 3110 and the bracket device 3120 stronger, and since the corresponding second bracket 3122 is not installed above the second connection bracket 31245, the length of the second connection bracket 31245 needs to be longer than the first connection bracket 31241. Furthermore, the two second connection brackets 31245 on one side of the engagement member 31231 can be spaced apart from each other, so that the engagement member 31231 can receive the force evenly on this side, and another element such as an adjuster 3140 can be provided between the two second connection brackets 31245, making the structure more compact.

[0279] Furthermore, as shown in Figures 32C and 32I, the bottom 3111 of the case 3110 includes a plurality of through grooves 31111 each located in a corresponding first connecting bracket 31241 or second connecting bracket 31245, and the plurality of second connecting brackets 31245 are each at least partially located within the corresponding through grooves 31111, and each locking set 31244 includes a locking portion 312441 provided on the corresponding bracket connecting member 31243 and a locking portion 312442 that locks to the locking portion 312441, so that the case 3110 can be firmly connected to the bracket device 3120.

[0280] As shown in FIG. 32H, the bracket connecting member 31243 located on the corresponding first connecting bracket 31241 is at least partially located within the through groove 31111 and abuts against the lateral portion 31222 of the second bracket 3122, and the locking fixing member 312442 located on the corresponding first connecting bracket 31241 penetrates through the corresponding guide member (e.g., guide member 31242C), the first structural reinforcement member 31233 of the third bracket 3123, the corresponding first connecting bracket 31241, the lateral portion 31222 of the corresponding second bracket 3122 and the corresponding bracket connecting member 31243 to be locked and fixed to the corresponding locking fixing member 312442. As shown in FIG. 32I, the bracket connecting member 31243 located on the corresponding second connecting bracket 31245 is at least partially located within the corresponding second connecting bracket 31245 and abuts against the corresponding second connecting bracket 31245, and the locking fixing member 312442 located on the corresponding second connecting bracket 31245 passes through the engaging member 31231 of the third bracket 3123, the corresponding second connecting bracket 31245 and the corresponding bracket connecting member 31243 and is locked and fixed to the corresponding locking fixing member 312442.

[0281] However, the number and installation positions of the bracket connecting member, locking set, second connecting bracket, and through-slot of the present disclosure are not limited to this embodiment. For example, in another embodiment, the fixing assembly can include one bracket connecting member installed in the set, one locking set installed in the set, and one second connecting bracket installed in the set, and the bottom of the case includes one through-slot installed in the set and located on the corresponding second connecting bracket. Or, in another embodiment, the fixing assembly includes a first connecting bracket provided in the set, a bracket connecting member provided in the set, and a locking combination provided in the set, there is no second connecting bracket, and the bottom of the case is composed of a slot provided in the set and located on the corresponding first connecting bracket.

[0282] As will be appreciated, in alternative embodiments, the locking fixing set may be omitted and the bracket connecting member may be connected to the second bracket or the second connecting bracket by engagement of a snap-fit ​​protrusion and a snap-fit ​​notch.

[0283] In addition, in order to improve the ride comfort, as shown in Figures 32H and 32I, each bracket connecting member 31243 includes a recess 312431, and the locking member 31241 is received in the recess 312431 and does not protrude from the bracket connecting member 31243, and the bottom 3111 of the case 3110 includes seven recesses 31112, and each bracket connecting member 31243 is partially received in the corresponding recess 31112 and does not protrude from the bottom 3111 of the case 3110.

[0284] However, the number and placement of the recesses of the present disclosure are not limited to this embodiment. For example, in another embodiment, the bottom of the case includes a recess therein. It should be understood that in another embodiment, the placement of the recesses and grooves can be omitted.

[0285] 32J and 32K, which are schematic diagrams of restraint belt arrangements at different angles of the carrier 3100 of the first embodiment of the third aspect of the present disclosure. As shown in Fig. 32J and 32K, the carrier 3100 further includes a restraint belt 3130 and an adjuster 3140, which include three position limiting segments 3131 and an adjustment segment 3132 that can cooperate with each other, thereby restricting the child within the storage space 3113. As shown in FIG. 32B and FIG. 32C, the bottom 3111 of the case 3110 further includes three bottom openings 31113 (shown in FIG. 32C), and the bracket device 3120 further includes two positioning brackets, namely a first positioning bracket 3125 and a second positioning bracket 3126, which are respectively connected to two second brackets 3122. The first positioning bracket 3125 includes a first bracket body 31251, two first bracket openings 31252 formed in the first bracket body 31251 and respectively disposed in two of the corresponding three bottom openings 31113, and two convex extension structures 31253 protruding from the first bracket body 31251. The second positioning bracket 3126 is connected to the second bracket body 3122. 1261 and a second bracket opening 31262 formed in the second bracket body 31261 and disposed in the other of the three corresponding bottom openings 311113, and as shown in Figures 32I and 32J, each position-limiting segment 3131 can pass through the corresponding bottom opening 31113 via the corresponding first bracket opening 31252 or second bracket opening 31262, and an adjuster 3140 is provided on the third bracket 3123, and the adjustment segment 3132 of the restraint belt 3130 passes through the adjuster 3140 used for adjusting and locking the restraint belt 3130, and each convex extension structure 31253 is at least partially inserted into the corresponding bottom opening 31113 to avoid the restraint belt 3130 rubbing against the case 3110 during adjustment, and can be used to increase the structural strength of the corresponding bottom opening 31113.

[0286] However, the number and installation positions of the bottom opening, positioning bracket, bracket opening, and protruding structure of the present disclosure are not limited to this embodiment. For example, in another embodiment, the bottom of the case includes a bottom opening provided in the set, and the bracket device includes a positioning bracket provided therein, which includes a bracket opening and a protruding structure. It should be understood that in another embodiment, the restraint belt or adjuster can be omitted.

[0287] 32A, 32C, and 32L, FIG. 32L is a schematic diagram of a carrier 3100 according to a first embodiment of the third aspect of the present disclosure when the handle 3150 is in a folded state. As shown in FIG. 32A, 32C, and 32L, the carrier 3100 further includes a handle 3150 pivotally connecting the first bracket 3121, and the pivoting of the handle 3150 allows the carrier to switch between a use state shown in FIG. 32A and a storage state shown in FIG. 32L, thereby facilitating carrying and storage. Furthermore, in this embodiment, the handle 3150 is approximately disposed on the upper edges of the two side walls of the case 3110, and the handle 3150 can be smoothly folded on both sides of the case 3110.

[0288] 33A and 33B, which are schematic external views of a carrier 3200 according to a second embodiment of the third aspect of the present disclosure from different angles. As shown in Fig. 33A to Fig. 33B, the carrier 3200 includes a case 3210 and a bracket device 3220, and unlike the first embodiment, the storage space 3213 of the case 3210 is used to store a pet, and the carrier 3200 is a carrier for pets, and the fixing assembly can include only two second connecting brackets 32245 located on both sides along the longitudinal axis direction D31 of the engagement member 32231 and located approximately in the center of each side. Further, referring to Fig. 33B to Fig. 33E, Fig. 33C is a cross-sectional schematic diagram of the carrier 3200 of the second embodiment of the third aspect of the present disclosure, Fig. 33D is a top view of the carrier 3200 of the second embodiment of the third aspect of the present disclosure in a state where the handle of the carrier 3200 is folded, and Fig. 33E is an enlarged schematic diagram of a partial structure of the carrier 3200 of the second embodiment of the third aspect of the present disclosure. As shown in Fig. 33B and Fig. 33D, the bracket connecting member 32243, the locking set 32244 and the through groove (not shown) located on both sides of the case 3210 can be installed corresponding to the two second connecting brackets 32245. As shown in Fig. 33C to Fig. 33E, the bottom 3211 of the case 3210 includes only a bottom opening 32113 located approximately at the center of the case 3210. In this embodiment, as shown in Fig. 33B, the distance between the second structural reinforcement member 32234 and the first structural reinforcement member 32232 is slightly larger than the distance between the second structural reinforcement member 31234 and the first structural reinforcement member 32233 so as to fit the installation position of the bottom opening 32113. Furthermore, as shown in Figs. 33C and 33E, the central portion of the second structural reinforcement member 32234 located between the two first structural reinforcement members 32232, 32233 is bent toward the bottom 3211 of the case 3210 and abuts against the bottom 3211 of the case 3210, thereby enhancing the impact resistance of the bracket device 3220.Also, the bracket device 3220 only includes a positioning bracket 3225 that connects the center of the second structural reinforcement member 32234 and is located approximately at the center of the corresponding case 3210, the positioning bracket 3225 includes a bracket 32251, a bracket opening 32252 formed in the bracket 32251 and located at the corresponding bottom opening 32113, and a convex extension structure 32253 protruding from the bracket 32251 and at least partially inserted into the bottom opening 32113, the restraining belt 3230 only includes a position limiting segment 3231 and does not include an adjustment segment, the carrier 3200 does not include an adjuster, and the position limiting member 3233 is provided on the position limiting segment 3231, which can be used to engage with a snap ring on a pet vest to restrict the pet within the accommodation space 3213. Other configurations of this embodiment are similar to those of the first embodiment and have similar various changes, and will not be described here for the sake of brevity.

[0289] Also, referring to Fig. 34A-34C, Fig. 34A-34C are external schematic diagrams of a carrier 3300 of a third embodiment of the third aspect of the present disclosure at different angles. As shown in Fig. 34A-34C, the carrier 3300 is different from the second embodiment in that the carrier 3300 does not include a restraining belt and an adjuster, the bottom 3311 of the case 3310 does not include a bottom opening, the bracket device 3320 does not include a positioning bracket, and the second structural reinforcement member 33234 is approximately the same distance from the two first structural reinforcement members 33232, 33233. The other configurations of this embodiment are similar to those of the second embodiment, and have similar various changes, and will not be described here for the sake of brevity.

[0290] In addition, some of the current carriers are equipped with ceilings, but such ceilings are generally connected to the carrier body in a complicated manner, so that when the ceiling is not needed, it is difficult for the user to remove the ceiling from the carrier body, which is disadvantageous for portability and use. Therefore, the present disclosure also provides a carrier with a removable ceiling.

[0291] For example, referring to Fig. 35A to Fig. 35C, Fig. 35A and Fig. 35B are schematic external views of the carrier 3400 of the fourth embodiment of the third aspect of the present disclosure in different states, and Fig. 35C is a schematic partial structural view of the carrier 3400 of the fourth embodiment of the third aspect of the present disclosure after removing the ceiling 3460 and the seat fabric 3480. As shown in Fig. 35A to Fig. 35C, unlike the third embodiment, the carrier 3400 includes a ceiling 3460, a ceiling connection assembly 3470, and a seat fabric 3480 that at least partially covers the case 3410 and the bracket device 3420, and the handle 3450 is exposed to the seat fabric 3480 to facilitate gripping by the user, and the third bracket 3423 is also exposed to the seat fabric 3480 to facilitate engagement with the base. The ceiling connection assembly 3470 is provided between the ceiling 3460 and the seat fabric 3480, and is provided to detachably connect the ceiling 3460 and the seat fabric 3480 to each other, the ceiling 3460 includes a first shelf portion 3461, a second shelf portion 3462, and a ceiling connection assembly 3463, and the ceiling connection assembly 3463 is provided between the first shelf portion 3461 and the second shelf portion 3462, and is provided to detachably connect the first shelf portion 3461 and the second shelf portion 3462 to each other. Specifically, the ceiling connection assembly 3470 and the ceiling connection assembly 3463 may each be a fastener assembly. In another embodiment, the ceiling connection assembly can be installed between the ceiling and the case, the ceiling connection assembly can include a male button and a female button or two hook-and-loop fasteners (also called "hook-and-loop fasteners" or "magic seals") installed on the ceiling and the case, respectively, and the ceiling connection assembly can include a male button and a female button or two hook-and-loop fasteners installed on the first shelf and the second shelf, respectively. The other configurations of this embodiment are similar to those of the third embodiment, and have similar various changes, and will not be described here for the sake of brevity.

[0292] 36A and 36B, Fig. 36A is an external schematic view of a carrier 3500 according to a fifth embodiment of the third aspect of the present disclosure, and Fig. 36B is a partial structural schematic view of the carrier 3500 according to a fifth embodiment of the third aspect of the present disclosure after removing the ceiling and the sheet. As shown in Figs. 36A and 36B, unlike the fourth embodiment, the carrier 3500 does not include a handle, but includes a strap 3590 for a user to wear and two first strap connection parts 35A0, the two first strap connection parts 35A0 are provided on a first bracket 3521, and the strap 3590 includes a belt body 3591 and a second strap connection member 3592 provided on the belt body 3591 for separably connecting the first strap connection member 35A0, respectively. Specifically, the two first strap connection members 35A0 may be two engagement rings provided on two opposing short sides of the first bracket 3521 and exposed to the seat fabric 3580, and the two second strap connection members 3592 may be two engagement hooks provided on both ends of the belt body 3591. In this embodiment, a first positioning groove 3515 for receiving and positioning the first strap connection member 35A0 is formed on the outer side of the short side of the peripheral wall of the case 3510 to avoid any movement of the first strap connection member 35A0. In another embodiment, a positioning protrusion for positioning the first strap connection member and avoiding excessive movement of the first strap connection member may also be provided on the short side of the first bracket. In another embodiment, the first strap connection member and the second strap connection member may be omitted, and the strap can be connected to surround the first bracket. The rest of the configuration of this embodiment is similar to that of the fourth embodiment, with similar variations, and will not be described again here for the sake of brevity.

[0293] Also, referring to Figures 37A and 37B, Figure 37A is a schematic external view of a carrier 3600 according to a sixth embodiment of the third aspect of the present disclosure, and Figure 37B is a schematic partial structural view of the carrier 3600 according to the sixth embodiment of the third aspect of the present disclosure after removing the ceiling and sheet. As shown in Figures 37A and 37B, unlike the fifth embodiment, the carrier 3600 does not include a strap, but includes a fixed rope 36B0 for engaging with the vehicle seat and two first fixed rope connection members 36C0, the two first fixed rope connection members 36C0 are provided on the first bracket 3621, the fixed rope 36B0 includes a rope main body 36B1 and two second fixed rope connection members 36B2 provided on the rope main body 36B1, the engagement between the fixed rope 36B0 and the vehicle seat is realized by winding the rope main body 36B1 around the headrest support rod of the vehicle seat, and the two second fixed rope connection members 36B2 are respectively used to detachably connect the two first fixed rope connection members 36C0. Specifically, the two first fixed rope connection members 36C0 may be two engagement rings provided on the long sides of the first bracket 3621 and exposed to the seat fabric 3680, and the two second fixed rope connection members 36B2 may be two engagement hooks provided on both ends of the rope main body 36B1. Furthermore, the two first fixed rope connection members 36C0 are respectively disposed at the ends of the vertical parts 36221 adjacent to the two second brackets 3622, and compared with other installation positions on the first bracket 3621, the first bracket 3621 is not deformed when subjected to the tensile force of the rope main body 36B1, so that the carrier 3600 can have a high impact resistance. In addition, in this embodiment, a second positioning groove 3616 is formed on the outer side of the peripheral wall long side of the case 3610 to accommodate and position the first fixed rope connection member 36C0 in order to avoid excessive movement of the first fixed rope connection member 36C0. In another embodiment, the long side of the first bracket may be provided with a positioning protrusion for positioning the first fixed rope connection component and preventing excessive movement of the first fixed rope connection component.As can be understood, in another embodiment, the first fixed rope connecting member and the second fixed rope connecting member can be omitted, and the fixed rope can be connected to the first support member so as to be wound around it. In yet another embodiment, the carrier 3600 can also include a first positioning groove and two first strap connecting members to cooperate with a strap having multiple use modes. The other configurations of this embodiment are similar to the fifth embodiment, and have similar various changes, and will not be described here for the sake of brevity.

[0294] Also, referring to Fig. 38A, Fig. 38A is an external schematic diagram of a carrier 3700 according to a seventh embodiment of the third aspect of the present disclosure. As shown in Fig. 38A, the difference from the sixth embodiment is that a rope main body 37B1 of a fixed rope 37B0 has a Y-shape, and the fixed rope 37B0 is fitted to a vehicle seat by hooking a snap hook 37B3 provided at one end of the rope main body 37B1 away from the first bracket onto a headrest support rod or a backrest locking rod of the vehicle seat.

[0295] Compared to the prior art, in the present disclosure, a first bracket is connected to the case and surrounds the peripheral wall of the case, and a second bracket is connected to the case and extends from one side of the peripheral wall of the case through the bottom of the case to the other side of the peripheral wall of the case. With the above arrangement, the brackets of the present disclosure are not only lightweight and structurally strong, but also capable of achieving both portability and riding safety.

[0296] The cases of the above-mentioned embodiments of the third aspect of the present disclosure may be attached to the wheel-type moving devices described in the first and second aspects of the present disclosure, for example, by using the third bracket of each bracket device. For specific mounting modes, refer to the above-mentioned first aspect, and detailed explanations will be omitted here.

[0297] In addition to the carriers 3100 to 3700 described in the above third embodiment of the present disclosure, the fourth embodiment of the present disclosure provides other embodiments of the carrier, for example, a removable ceiling assembly and a carrier including the same. For convenience of explanation, the carriers in the fourth embodiment of the present disclosure are represented by "4100" to "4800", respectively.

[0298] 39-40, schematic views of different states of a carrier 4100 according to one embodiment of the fourth aspect of the present disclosure are shown, where FIG. 39 shows a schematic front view of the carrier 4100, and FIG. 40 shows a structural schematic view of the carrier 4100 shown in FIG. 39 after removing the ceiling and seat fabric.

[0299] 39 and 40, the carrier 4100 can include a case 4110, a bracket device 4120, and a ceiling assembly 4130, where the ceiling assembly includes a ceiling frame 4131, a ceiling lock device 4132, and a ceiling 4133, which will be described in detail below. Note that the periphery of the carrier 4100 shown in FIG. 39 is at least partially covered with a sheet fabric 4150, and the sheet fabric 4150 at least partially covers the case 4110, the bracket device 4120, and the ceiling assembly 4130. For convenience of explanation, FIG. 40 is a schematic diagram of a perspective structure of the carrier 4100 after removing the ceiling 4133 and the sheet fabric 4150 shown in FIG. 39.

[0300] 40, the case 4110 (which may be referred to as a "mounting portion") includes a bottom 4111 and a peripheral wall 4112 connected to the periphery of the bottom 4111, and the bottom 4111 and the peripheral wall 4112 form a storage space 4113 (i.e., a mounting space). The storage space 4113 has an opening that opens upward so that children, pets, etc. can get on it.

[0301] In one example, the bracket device 4120 is provided at least partially around the case 4110 to support the case 4110, for example, sleeved onto the outside of the case 4110 from below the case 4110. The bracket device 4120 includes a first bracket 4121, a second bracket 4122, and a third bracket 4123. The first bracket 4121 is provided substantially horizontally, surrounds the peripheral wall 4112 of the case 4110, and is close to the open part of the case 4110. Both ends of the second bracket 4122 are respectively connected to the first bracket 4121, and extend from one side of the peripheral wall 4112 of the case 4110 to the other side of the peripheral wall 4112 of the case 4110 via the bottom part 4111 of the case 4110 along the horizontal axis direction D42 of the case 4110. Further, in one example, two or more second brackets 4122 may be provided, each connected to the first bracket 4121, and arranged in parallel with a gap between them along the vertical axis direction D41. The third bracket 4123 is provided substantially horizontally and connected to the second bracket 4122, and is located on the bottom side of the bottom 4111 of the case 4110 and spaced a certain distance from the bottom 4111 of the case 4110. As can be seen from FIG. 39, the third bracket 4123 of the bracket device 4120 is exposed when the seat fabric 4150 is sleeved on the bracket 4100. The carrier 4100 can be supported and fixed to a cart, a vehicle seat, or the like by providing the bracket device 4120.

[0302] 39 and 40, the ceiling 4133 is sleeved in the opening of the case 4110 to cover the storage space 4113 of the case 4110. The ceiling frame 4131 is fixed to the periphery of the ceiling 4133 to support the ceiling 4133 above the case 4110, and is detachably provided around the opening of the case 4110. In one example, the ceiling frame 4131 is arranged around the opening of the case 4110 (as shown in FIG. 40), expands the ceiling 4133, and the expanded ceiling 4133 covers the ceiling frame 4131 so that it cannot be seen from the outside (as shown in FIG. 39). The ceiling lock device 4132 is provided on the ceiling frame 4131 and cooperates with a ceiling lock portion 4124 provided corresponding to the carrier 4100 in a separable manner, so that the ceiling assembly 4130 can be locked above the case 4110. Specifically, when the ceiling assembly 4130 is mounted around the case 4110, the ceiling locking device 4132 may engage with a ceiling lock portion 4124 corresponding to the first bracket 4131 of the bracket device 4130 such that the ceiling frame 4131 of the ceiling assembly 4130 is removably connected to the bracket device 4120 of the carrier 4100 (i.e., removably mounted above the case 4110). In one example, two ceiling locking devices 4132 (only one shown in the figure) symmetrically arranged on the ceiling frame 4131 on both sides of the horizontal axis direction D42 of the case 4110 may be provided. In one embodiment, the ceiling locking device 4132 may be centrally arranged on the ceiling frame 4131 on one side along the vertical axis direction D41, i.e., the center line of the ceiling locking device 4132 and the center line M41 of the edge on one side of the ceiling frame 4131 may overlap. It can be understood that the ceiling frame and the ceiling locking device may be collectively referred to as a "ceiling connection assembly."

[0303] 41 to 43, a process of removing a ceiling assembly 4130 from a case 4110 according to one embodiment of the fourth aspect of the present disclosure is shown. Here, the ceiling and seat fabric are omitted in FIGS. 41 to 43 to make the structure clearer. Specifically, FIG. 41 shows another angle of the carrier shown in FIG. 40 with the ceiling assembly 4130 attached to the case 4110. FIG. 42 shows the ceiling assembly 4130 being removed from the case 4110. FIG. 43 shows the ceiling assembly 4130 after it has been removed.

[0304] In one example, as shown in FIG. 41, when the ceiling needs to be used, the ceiling frame 4131 is connected to the first bracket 4121 by cooperation of the ceiling lock device 4132 and the ceiling lock part 4124 of the ceiling assembly 4130, and the ceiling frame 4131 is disposed above and substantially parallel to the first bracket 4121, at which time the ceiling frame 4131 is sleeved to the outside of the case 4110, and the ceiling (not shown in FIG. 41, see FIG. 39) installed on the ceiling frame 4131 can cover the entire opening of the case 4110. As shown in FIG. 42 and FIG. 43, when the ceiling does not need to be used, the ceiling lock device 4132 can be separated from the ceiling lock part 4124 provided on the first bracket 4121, thereby allowing the ceiling assembly 4130 (including the ceiling provided thereon) to be separated from the case 4110, at which time the user can store the ceiling assembly 4130. A specific cooperation method between the ceiling lock device 4132 and the ceiling lock part 4124 will be described below.

[0305] Referring to FIG. 44, there is shown a ceiling frame 4131 and a ceiling locking device 4132 provided thereon according to one embodiment of the fourth aspect of the present disclosure.

[0306] In one example, the ceiling lock device 4132 includes an unlocking operation member 41321. The unlocking operation member 41321 is provided on the ceiling frame 4131, and can unlock the ceiling assembly 4130 to the case 4110 by moving from a locked position to an unlocked position. The ceiling lock device 4132 further includes a locking member 41322, where the locking member 41322 is attached to the ceiling frame 4131, and the unlocking operation member 41321 is provided on the ceiling frame 4131 and operatively acts on the locking member 41322. As shown in FIG. 44, the locking member 41322 may be at least partially provided in a casing of the ceiling frame 4131, and the remaining portion may extend downward from the casing to cooperate with the above-mentioned ceiling lock portion. The unlocking operation member 41321 is at least partially provided in a casing of the ceiling frame 4131, and the remaining portion may extend downward from the casing to be operated by a user through contact therewith, thereby unlocking the locking member 41322.

[0307] The specific configuration and operating principle of the ceiling locking device 4132 will be further explained below with reference to Figures 45 to 48. Note that Figures 45 and 46 respectively show the ceiling locking device 4132 with the unlocking operation member 41321 in the locked position and the unlocked position, and Figures 47 and 48 respectively show the locking and unlocking of the unlocking operation member 41321 with respect to the ceiling lock section 4124.

[0308] 45 and 46, Fig. 45 shows a structural schematic diagram of the ceiling locking device 4132 in part A of Fig. 44, where a part of the casing in part A of Fig. 44 is removed to show a specific structure of the ceiling locking device 4132 in a locked state. Fig. 46 shows a specific configuration of the ceiling locking device 4132 shown in Fig. 45 in an unlocked state.

[0309] 45 and 46, in one example, the lock member 41322 is pivotally attached to the ceiling frame 4131, and the unlock operation member 41321 is connected to the lock member 41322 and is movable between a locked position (FIG. 45) and an unlocked position (FIG. 46). In one embodiment, the lock member 41322 can be pivotally attached to the ceiling frame 4131 around a pivot point O41, and the unlock operation member 41321 can be pivotally attached to the ceiling frame 4131 around another pivot point O42 different from the pivot point O41, and the unlock operation member 41321 can be moved between a locked position and an unlocked position in a vertical direction relative to the ceiling frame 4131, and the lock member 41322 can be pivoted relative to the ceiling frame 4131 around the pivot point O41.

[0310] Furthermore, the two locking members 41322 may be arranged in mirror symmetry in the ceiling lock device 4132, and each may be pivotally attached to both sides of the same unlocking operation member 41321. For example, the two locking members 41322 are pivotally attached to the ceiling frame 4131 at two pivot points O41 symmetrical along the center line M41, and are pivotally attached to both ends of the unlocking operation member 41321 at pivot points O42, respectively.

[0311] 45 and 46, in one example, the ceiling lock device 4132 may also include an elastic reset member 41323. The elastic reset member 41323 is connected between the unlocking operation member 41321 and the ceiling frame 4131, and always provides a force to put the unlocking operation member 41321 in or return to the locked position. That is, as shown in FIG. 45, the elastic reset member 41323 always applies a vertical downward force to the unlocking operation member 41321 so that the unlocking operation member 41321 always tends to protrude from the casing of the ceiling frame 4131.

[0312] 47 and 48, FIG. 47 shows a schematic diagram of the locking between the ceiling lock device 4132 and the ceiling lock portion 4124, and FIG. 48 shows a schematic diagram of the unlocking between the ceiling lock device 4132 and the ceiling lock portion 4124.

[0313] 47 and 48, the locking member 41322 is pivotally attached to the ceiling frame 4131, and locks or unlocks the ceiling frame 4131 to a case (not shown) by engaging or disengaging with the ceiling locking portion 4124 by movement relative to the ceiling frame 4131. Specifically, when the unlocking operation member 41321 is in the locked position (see FIG. 47), the locking member 41322 engages with the ceiling locking portion 4124, and when the unlocking operation member 41321 is operated to the unlocked position (see FIG. 48), the locking member 41322 is engaged or disengaged with the ceiling locking portion 4124.

[0314] 47 and 48, in one example, the lock member 41322 has a hook that protrudes toward the ceiling lock portion 4124, and the ceiling lock portion 4124 includes an engagement pin 41241 provided corresponding to the hook. When the unlock operation member 41321 is in the locked position, the hook is engaged with the engagement pin 41241. When the unlock operation member 41321 is operated to push and pivot the lock member 41322 to be in the unlocked position, the hook disengages from the engagement pin 41241. More specifically, referring to Figures 42, 47, and 48, when it is necessary to remove the ceiling assembly 4130 from above the case 4110, the user can operate (e.g., press) the unlocking operation member 41321, which moves vertically to pivot the locking member 41322 pivotally attached thereto, and by further pivoting it from the locked position to the unlocked position, the hook of the locking member 41322 disengages from the engagement pin 41241 of the ceiling lock portion 4124 provided on the first bracket 4121, thereby achieving unlocking and allowing the ceiling assembly 4130 to be removed.

[0315] Also, the ceiling frame 4131 is provided with a lock guide member 41316 as shown in Fig. 47. The lock guide member 41316 is provided on one side of the lock member 41322, and can guide the positioning of the ceiling lock device 4132 relative to the ceiling lock section 4124, thereby assisting in locking the lock member 41322 and the ceiling lock section 4124. For example, when attaching the ceiling assembly 4130 to a first bracket 4121 (not shown in Fig. 47, see Fig. 42) provided with the ceiling lock section 4124, the lock guide member 41316 comes into contact with the inner edge of the ceiling lock section 4124 to guide the ceiling lock device 4132, and is positioned corresponding to the ceiling lock section 4124, thereby allowing the hook of the lock member 41322 to engage with or release from the corresponding engagement pin 41241 of the ceiling lock section 4124.

[0316] Referring to Figures 49 and 50, different states of a ceiling frame 4131 according to one embodiment of the fourth aspect of the present disclosure are shown, with Figure 49 showing the ceiling frame 4131 in an unfolded state and Figure 50 showing the ceiling frame 4131 in a folded state.

[0317] In one example, the ceiling frame 4131 has a three-stage folding structure. As shown in FIG. 49 and FIG. 50, the ceiling frame 4131 may include a first pivot segment 41311, a second pivot segment 41312, and two lock segments 41315. Both ends of the first pivot segment 41311 are pivotally connected to one end of each of the two lock segments 41315 via a first pivot portion 41313, and both ends of the second pivot segment 41312 are pivotally connected to the other end of each of the two lock segments 41315 via a second pivot portion 41314, where each of the two lock segments 41315 is provided with a ceiling lock device 4132. In one example, the size of the lock segment 41315 provided with the ceiling lock device 4132 according to the present disclosure may be 160 mm to 180 mm, optionally 173 mm.

[0318] 51A to 51C, FIG. 51A shows a cross-sectional oblique view of the first pivot portion 41313 taken along line KK shown in FIG. 49, FIG. 51B shows the structure of the first pivot portion 41313 on one side of the lock segment 41315, and FIG. 51C shows the structure of one side of the first pivot portion 41311 of the first pivot portion 41313.

[0319] As shown in Figs. 51A to 51C, the first pivot attachment portion 41313 is provided with a segment adjustment structure such as gear teeth so that the first pivot attachment portion 41311 can be held at different angles relative to the lock portion 41315. Specifically, as shown in Fig. 51B, the first pivot attachment portion 41313 is formed by pivoting the first pivot segment 41311 and the lock segment 41315 to each other, and the first gear teeth 41313a are provided at the end of the lock segment 41315, and as shown in Fig. 51C, the second gear teeth 41313b are provided at the end of the first pivot segment 41311. Similarly, the second pivot attachment portion 41314 may be provided with a structure similar to that of the first pivot attachment portion 41313, i.e., gear teeth, so that the second pivot attachment portion 41312 can be held at different angles relative to the lock segment 41315. The present disclosure is not limited thereto, and the ceiling frame 4131 may be provided with other segment adjustment structures so that the pivoting segments of the ceiling frame 4131 may be at different angles relative to the opening of the case.

[0320] 51A, the first pivotal attachment part 41313 is also provided with a reset spring 41313C that constantly urges the first pivotal attachment part 41313 in the direction of unfolding the ceiling frame 4131, in order to assist in the process of unfolding the ceiling frame 4131. Similarly, the second pivotal attachment part 41314 may be provided with a reset spring to facilitate unfolding the ceiling frame.

[0321] Referring to Figures 52 to 54B, the case 4110 is shown to which a ceiling frame 4131 is attached in different states, with the ceiling frame 4131 in Figure 52 and the ceiling 4133 in Figure 54A being in an unfolded state, and the ceiling frame 4131 in Figure 53 and the ceiling 4133 in Figure 54B being in a folded state.

[0322] 52 and 54A, when the ceiling 4133 is attached above the case 4110, the ceiling lock device 4132 provided on the lock segment 41315 can be locked with the ceiling lock part 4124 provided on the first bracket 4121 so that at least a part of the ceiling frame 4131 (i.e., the lock segment 41315) is locked to the first bracket 4121 sleeved on the outside of the case 4110. When the ceiling frame 4131 is in an unfolded state as shown in FIG. 52 and is provided around the opening of the case 4110, i.e., the first pivot segment 41311, the lock segment 41315 and the second pivot segment 41312 are on approximately the same horizontal line, the ceiling 4133 is in an unfolded state (as shown in FIG. 54A) and is covered over the opening of the case 4110, and at this time, the ceiling frame 4131 is blocked by the ceiling 4133 and cannot be seen from the outside.

[0323] 53 and 54B, when the ceiling 4133 needs to be folded, the first pivot segment 41311 and / or the second pivot segment 41312 of the ceiling frame 4131 can be pulled around and rotated relative to the lock segment 41315 around the first pivot part 41313 and / or the second pivot part 41314 to partially or completely fold the ceiling frame 4131 and the ceiling 4133 fixedly connected thereto, for example the fully folded ceiling 4133 shown in FIG. 54B. At the same time, the gear teeth provided on the first pivot part 41313 and / or the second pivot part 41314 can put the ceiling frame and the ceiling 4133 into at least one folding position, so that the opening size of the ceiling 4133 relative to the case 4110 can be adjusted correspondingly, which can facilitate the user to perform the related operations and improve the safety and convenience of use. In one example, as shown in Figures 53 and 54B, the ceiling frame 4131 (and its ceiling 4133) in a fully folded state stands centrally above the case 4110, i.e., the first pivot segment 41311 and the second pivot segment 41312 can be perpendicular or substantially perpendicular to the lock segment 41315.

[0324] Also, a connection structure is provided between the ceiling 4133 and the case 4110 of the carrier 4100 to keep the ceiling 4133 closed relative to the case 4110, as shown in Figures 54A and 54B.

[0325] In one example, the connection structure includes a connection part and a cooperating connection part. The connection parts are provided on opposite sides of the case 4110, and the cooperating connection parts are provided on corresponding sides of the ceiling 4133 and are joined with the connection parts. Here, one of the connection parts and the cooperating connection parts is a male connection member (e.g., "4114" in FIG. 54B), and the other is a female connection member (e.g., "41335" in FIG. 54A and FIG. 54B), and the ceiling 4133 is kept closed by the joining of the male connection member 4114 and the female connection member 41335. Note that, although only one example of the male connection member and the female connection member (i.e., the male connection member 4114 is installed on the case 4110, and the female connection member 41335 is installed on the ceiling 4133) is shown in FIG. 54A and FIG. 54B, the installation positions of both are also interchangeable, that is, the male connection member may be installed on the ceiling and the female connection member may be installed on the case. For example, the male connecting member 4114 and the female connecting member 41335 are a magnetic buckle assembly that cooperate with each other.

[0326] Also, as shown in FIG. 54A and FIG. 54B, both sides of the case 4110 may be provided with flexible handles (only one side of the flexible handle is shown in the figures), and when a user needs to move the carrier 4100, the user can drag or lift the carrier 4100 by gripping the flexible handles on both sides of the case 4110. In one example, the flexible handle 4151 may be sewn to a sheet fabric 4150 that is covered on the outside of the case 4110 and located below the male connecting member 4114. However, the present disclosure is not limited thereto, that is, the flexible handle 4151 may be provided fixedly or detachably on both sides of the case 4110 in other ways.

[0327] Referring to Fig. 55, a carrier 4100 with a ceiling removed according to an embodiment of the fourth aspect of the present disclosure is shown. As shown in Fig. 55, either side of the carrier 4100 may be provided with a figure bag 4152 for placing small items such as straps, for example, by pasting or sewing to a sheet fabric 4150 sleeved on the outside of the case 4110. In addition, the figure bag 4152 at least partially covers the connection part provided on the case 4100, for example, the male connection member 4114, which can avoid the male connection member 4114 from affecting the appearance or being damaged by collision, and the opening edge of the figure bag 4152 is provided with an elastically extending fastening structure, which can make it easier to place items.

[0328] In one example, as shown in Fig. 55, the carrier 4100 may be provided with a handle 4160, for example, both ends of the handle 4160 may be provided on either side of the carrier 4100, and are provided symmetrically on the ceiling locking portion 4124, and can be used by a user to lift the carrier 4100. The position in which the handle 4160 is in an upright state is higher than the folded height of the ceiling (not shown in Fig. 55), and the width of the handle 4160 is larger than the width of the ceiling so as not to interfere with the folding of the ceiling. Specifically, referring to Figures 55 and 54B (showing the folded ceiling 4133) and Figure 53 (showing the ceiling frame 4131 supporting the ceiling), the position of the handle 4160 in the upright state is higher than the first pivot segment 41311 and the second pivot segment 41312 and the ceiling 4133 provided thereon in the upright state (i.e., fully folded), and the width of the handle 4160 in the horizontal axis direction D42 is greater than the width of the first pivot segment 41311, the second pivot segment 41312 and the ceiling 4133.

[0329] 56, 57A and 57B, Fig. 56 shows a perspective schematic view of a carrier 4200 according to another embodiment of the fourth aspect of the present disclosure, in which the ceiling sleeved above the case 4210 and the sheet fabric covered on the outside of the case 4210 are removed, and Fig. 57A shows another perspective view of the carrier 4200 with the unlocking operation member shown in Fig. 56 removed. Fig. 57B shows a partial enlarged view of part H in Fig. 57A. Fig. 57C shows a partial cross-sectional perspective view of the ceiling lock device cut along line GG in Fig. 57A.

[0330] In this embodiment, the difference between the carrier 4200 and the carrier 4100 shown in FIG. 39 mainly includes a ceiling locking device 4232 having a different structure.

[0331] 56 and 57A to 57C, the ceiling assembly 4230 of the carrier 4200 includes a ceiling frame 4231, a ceiling locking device 4232, and a ceiling (the ceiling is not shown for clarity, and the ceiling in this embodiment has the same structure as the ceiling 4133). The ceiling frame 4231 surrounds the periphery of the opening of the case 4210, and the ceiling locking device 4232 is at least partially provided on the ceiling frame 4231 and cooperates with a ceiling locking portion 4224 provided corresponding to the carrier 4200 to lock the ceiling assembly 4230 above the case 4210. In one example, the carrier 4200 has two ceiling locking devices 4232 (only one is shown in the figure), which are provided symmetrically on the ceiling frame 4231 on both sides of the horizontal axis direction D4 of the case 4210, and cooperate with the ceiling locking portion 4224 provided on the first bracket 4221 in a separable manner.

[0332] In one example, the ceiling locking device 4232 may include an unlocking operation member 42321 (see FIG. 56) and a locking member 42322 (see FIG. 57B). The unlocking operation member 42321 is operable to move from a locked position to an unlocked position so that the ceiling assembly 4230 is unlocked relative to the case 4210. The unlocking operation member 42321 is provided on a bracket device, for example, a first bracket 4221, sleeved on the outside of the case 4210. As shown in FIG. 56, the unlocking operation member 42321 may be installed on the outside of the ceiling locking portion 4224, and its specific installation and operation principle will be described below. FIGS. 57A-57C show a configuration for removing the unlocking operation member 42321 to show a perspective view of the state in which the ceiling locking device 4232 is engaged with the ceiling locking portion 4224.

[0333] As shown in Figures 57A and 57B, the locking member 42322 may be provided as a first sheet-like member fixedly connected to the ceiling frame 4231, for example by a rivet, and protruding from the ceiling frame 4231 to a bracket device of the carrier 4200 (the first bracket 4221 shown in the figures).

[0334] The ceiling locking portion 4224 may also include a second sheet-like member 42241. Please refer to Fig. 58A and Fig. 58B, which respectively show different angles of the second sheet-like member 42241. In one example, the second sheet-like member 42241 may be set to an inverted trapezoid shape.

[0335] 57A to 58B, the locking member 42322 (i.e., the first sheet-like member) and the second sheet-like member 42241 of the ceiling locking portion 4224 can have a structure in which they engage with each other to lock. In one example, an engagement hole is provided on one of the first sheet-like member 42322 and the second sheet-like member 42241, and an engagement protrusion that engages with the engagement hole is provided on the other of the first sheet-like member 42322 and the second sheet-like member 42241. For example, as shown in FIGS. 57B, 57C, and 58A, an engagement hole 42322a is provided on the first sheet-like member 42322, and an engagement protrusion 42241a is provided correspondingly on the second sheet-like member 42241 of the ceiling locking portion 4224, and in the locked state, the engagement hole 42322a and the engagement protrusion 42241a engage with each other. However, the present disclosure is not limited thereto, and the locking member 42322 and the ceiling locking portion 4224 may have other corresponding structures.

[0336] With further reference to Figures 59A-59C, cross-sectional perspective views of a ceiling locking device in different positions are shown.

[0337] 59A and 59B, in an example in which the lock member 42322 includes a first sheet-like member and the ceiling lock section 4224 includes a second sheet-like member 42241, the unlocking member 42321 is provided on the ceiling lock section 4224 and is movable in the front-rear direction between a locked position (see FIG. 59A) and an unlocked position (see FIG. 59B) relative to the ceiling lock section 4224. The second sheet-like member 42241 of the ceiling lock section 4224 is connected to the unlocking member 42321 and is movable in response to the operation of the unlocking member 42321, and an insertion space for accommodating the first sheet-like member (i.e., the lock member 42322) is formed between the second sheet-like member 42241 and the unlocking member 42321.

[0338] In one example, the ceiling lock device 4232 further includes an elastic reset member 42323, which is connected between the unlocking operation member 42321 and one of the second sheet-like member 42241 and a bracket device of the carrier (e.g., the first bracket 4221 shown in FIG. 59A) and constantly provides a force to position or return the unlocking operation member 42321 to the locked position.

[0339] Next, the structure and operating principle of the ceiling locking device 4232 will be further explained with reference to Figs. 59A to 59C.

[0340] When the ceiling is attached, as shown in Fig. 59A, the elastic reset member 42323 pushes up the second sheet-like member 42241 and the unlocking operation member 42321 to hold the unlocking operation member 42321 in the locked position, and the engagement hole 42322a of the first sheet-like member 42322 engages with the engagement protrusion 42241a of the second sheet-like member 42241. When unlocking is required, as shown in Fig. 59B, by pressing the unlocking operation member 42321 to the unlocked position, the unlocking operation member 42321 pushes the second sheet-like member 42241 against the biasing force of the elastic reset member 42323 to move it away from the first sheet-like member 42322, and the engagement hole 42322a can be disengaged from and engaged with the engagement protrusion 42241a. At this time, as shown in FIG. 59C, the ceiling frame 4231 can be moved upward and the first sheet-like member 42322 can be removed from the insertion space between the second sheet-like member 42241 and the unlocking operation member 42321, thereby removing the ceiling from the case.

[0341] 60 and 61, a ceiling frame 4231 according to another embodiment of the present disclosure is shown in an unfolded state and a folded state, respectively.

[0342] Similar to the ceiling frame 4131 of the above-mentioned embodiment, the ceiling frame 4231 of this embodiment includes a first pivot segment 42311, a second pivot segment 42312, and two lock segments 42315, in which both ends of the first pivot segment 42311 are pivotally connected to one end of the two lock segments 42315 via a first pivot portion 42313, respectively, and both ends of the second pivot segment 42312 are pivotally connected to the other end of the two lock segments 42315 via a second pivot portion 42314, respectively, and each of the two lock segments 42315 is provided with a ceiling lock device 4232. The difference is that the lock segment 42315 provided with the ceiling lock device 4232 of this embodiment can have a smaller size, for example, between 110 mm and 135 mm, optionally between 125 mm, thereby further improving the adaptability of the ceiling assembly to carriers of different sizes.

[0343] For example, referring to Figs. 62A to 63D, Figs. 62A to 62F and Figs. 63A and 63D each show a case in which the ceiling locking device is used with a case of a different size.

[0344] 62A to 62C show a long-sized bracket 4300, where the carrier 4300 includes a case 4310, a bracket device 4320, and a ceiling assembly 4330, and the bracket device 4320 and the ceiling assembly 4330 are sleeved on the outside of the case 4310 and include a first bracket 4321, a second bracket 4322, and a third bracket 4323. Specifically, FIG. 62A shows the carrier 4300 after removing the ceiling of the ceiling assembly 4330, FIG. 62B shows the state in which the ceiling assembly 4330 is separated from the case 4310 and the bracket device 4320, and FIG. 62C shows the carrier 4300 after removing the ceiling assembly 4330. As shown in FIG. 62A to 62C, the carrier 4300 may have two ceiling locking parts 4324 corresponding to the ceiling locking devices 4332 provided on the ceiling frame 4331. The two ceiling locking parts 4324 may be provided symmetrically on both sides of the first bracket 4321 of the bracket device 4320 with respect to the case 4310, or may be located at the middle of one side of the case 4310, i.e., at the middle of the side of the first bracket 4321. As shown in FIG. 62C, a structural reinforcing member 43233 may be provided under the long-sized carrier 4300, for example, at the middle of the vertical axis direction D41 of the third carrier 4323, to further strengthen the structural strength of the bracket device 4320. Note that, although this embodiment shows a configuration similar to that of the ceiling locking device shown in FIG. 56, it is obvious to those skilled in the art that this embodiment is also applicable to the ceiling locking device shown in FIG. 40.

[0345] Also, the carrier 4300 may be provided with a handle 4360 for easy portability. In a particular example, both ends of the handle 4360 may be symmetrically arranged on the bracket device 4320, as shown in Figs. 62A-62C. For example, both ends of the handle 4360 may be provided on the first brackets 4321 located on both sides of the case 4310, respectively, to avoid the ceiling lock portion 4324, more specifically, adjacent to the ceiling lock portion 4324, so that when the carrier 4300 is lifted via the handle 4360, it does not interfere with the ceiling lock portion 4324 and the carrier 4300 does not tilt excessively. As with the handle 4160 of the embodiment described above, the position of the handle 4360 in the upright state is higher than the height of the ceiling (not shown in Figs. 62A-62C) when folded, and is wider than the width of the ceiling.

[0346] In another specific example, as shown in Fig. 62D to Fig. 62F, the carrier 4300a can have a structure similar to that of the carrier 4300 in the above example. Specifically, the carrier 4300a includes a case 4310a, a bracket device 4320a sleeved on the outside of the case 4310a, and a ceiling assembly 4330a. The two ceiling locking parts 4324a of the carrier 4300a may be provided symmetrically with respect to the case 4310a on both sides of the first carrier 4321a of the bracket device 4320a, or may be located in the middle of each of the sides of the case 4310a. The two ceiling locking parts 4324a correspond to the ceiling locking devices 4332a provided on the ceiling frame 4331a, respectively. The difference from the carrier 4300 is that the handle 4360a can be installed on the ceiling assembly 4330a of the carrier 4300a, for example, the ceiling lock device 4332a (i.e., in the middle of the ceiling assembly 4330a and does not interfere with the structure of the ceiling lock device 4332a), so that the handle 4360a can be removed from the case 4310a together with the ceiling assembly 4330a. Specifically, both ends of the handle 4360a may be provided at positions corresponding to the ceiling lock portion 4324a on the ceiling frame 4331a. As shown in FIG. 62F, when the ceiling frame 4331a is folded against each other, the handle 4360a is in an upright state and is located between the folded first pivot segment 43311A and the second pivot segment 43312A. Similar to the handles 4160, 4360 of the previous embodiments, the handle 4360a is positioned in an upright position that is higher than the collapsed height of the ceiling (see FIG. 62F which shows the ceiling frame 4331a after the ceiling has been removed) and wider than the width of the ceiling.

[0347] 63A to 63D show a carrier 4400 having a short size, where the carrier 4400 includes a case 4410, a bracket device 4420 and a ceiling assembly 4430, where the bracket device 4420 is sleeved on the outside of the case 4410 and includes a first bracket 4421, a second bracket 4422 and a third bracket 4423. Specifically, in FIG. 63A, the ceiling of the ceiling assembly 4430 is removed, in FIG. 63B, the ceiling assembly 4430 is removed, and in FIGS. 63C and 63D, the carrier 4400 is in a state where the ceiling assembly 4430 is folded. As shown in FIG. 63A and FIG. 63B, the carrier 4400 may have two ceiling locking parts 4424 corresponding to the ceiling locking device 4432 provided on the ceiling frame 4431, respectively. The specific configuration of the ceiling lock part 4424 is similar to that of the ceiling lock part 4324 having the long-sized carrier 4300, and the description thereof will be omitted here. The difference is that the carrier 4400 is short in size, and may not be provided with a handle and a structural reinforcing member connected to the third bracket 4423, but the present disclosure is not limited thereto. When the structure does not collide, the carrier 4400 having a shorter size may also be provided with a handle similar to that shown in Figs. 62D and 62E, but the description thereof will be omitted here.

[0348] Also, referring to Fig. 63A and Fig. 63C, when the ceiling 4433 is attached to the ceiling frame 4431, the ceiling 4433 can shield the ceiling frame 4431 and the ceiling lock device 4432, and improve the aesthetics of the carrier 4400. Specifically, referring further to Fig. 63A and Fig. 63D, the lower edge of the ceiling 4433 may be sleeved by the first pivot segment 44311 and the second pivot segment 44312 of the ceiling frame 4431, respectively, and detachably connected to the lock segment 44315. For example, as shown in Fig. 63D, the lock segment 44315 is provided with a first fastener 4436 detachably connected to a second fastener 4437 correspondingly provided on the ceiling 4433, so as to enhance the connection stability between the ceiling 4433 and the ceiling frame 4431, and to minimize the probability of separation between the ceiling 4433 and the ceiling frame 4431. Optionally, the first fastener 4436 and the second fastener 4437 may be a button-type connecting device that is mated and connected to each other, i.e., the first fastener 4436 may be a female button of a button-type connecting device, and the second fastener 4437 may be a male button mated with the female button, but the present disclosure is not limited thereto, and the positions and / or structures of the first fastener 4436 and the second fastener 4437 are interchangeable. Also, the first fastener 4436 and the second fastener 4437 may adopt other methods, such as a Velcro tape, a slide button structure, a hook ring structure, a button structure, etc.

[0349] 64A-64D, there is shown a carrier 4500 provided with straps 4540 according to yet another embodiment of the fourth aspect of the present disclosure.

[0350] As shown in Figs. 64A to 64D, the strap 4540 includes a belt body 4541 and strap connection parts 4542 provided at both ends of the belt body 4541, and the strap connection parts 4542 are mutually connected to connection parts 4514 provided on both opposing sides of the case 4510. In one example, as shown in Figs. 64C and 64D, the strap connection part 4542 of the strap 4540 and the connection part 4514 provided on the case 4510 may be magnetic buckle assemblies that cooperate with each other, but the present disclosure is not limited thereto, and for example, the strap connection part 4542 may be a hook and may be used in combination with a D-shaped buckle link corresponding to the case 4510. That is, the strap connection part 4542 and the connection part 4514 may be an assembly that can be connected to each other by any fitting structure, such as a snap structure, a concave-convex structure, or a hook ring structure. Also, in another embodiment, the at least one connecting part 4514 on the case 4510 may be provided on a relative long side (diagonally) of the case 4510, and the present disclosure does not limit the installation position of the at least one connecting part 4514.

[0351] Referring to FIG. 65, there is shown a carrier 4600 according to a further embodiment of the fourth aspect of the present disclosure.

[0352] 65, the ceiling 4633 of the carrier 4600 includes a first shelf 46331, a second shelf 46332, and a ceiling connection assembly 46333 provided between the first shelf 46331 and the second shelf 46332 to detachably connect the first shelf 46331 and the second shelf 46332. Optionally, the first shelf 46331 and the second shelf 46332 have the same area. Also, in one example, a connection structure is provided between the ceiling 4633 of the carrier 4600 and the case 4610 to keep the ceiling 4633 closed relative to the case 4610. For example, the connection structure includes a ceiling connection assembly 46334, which is provided between the ceiling 4633 and the sheet fabric 4650 sleeved to the outside of the case 4610, and detachably connects the ceiling 4633 and the sheet fabric 4650 sleeved to the outside of the case 4610 around the periphery of the ceiling 4633 and the periphery of the sheet fabric 4650. In one example, the ceiling connection assembly 46334 is a fastener assembly.

[0353] 65, the ceiling 4633 may be provided with a fixed belt 46335 connected between the first shelf 46331 and the second shelf 46332. More specifically, one end (i.e., the fixed end 46335a) of the fixed belt 46335 is fixedly connected to the first shelf 46331, and the other end (i.e., the detachable end) is detachably connected to the second shelf 46332 by a buckle, for example, when a user grasps and lifts the carrier 4600, and prevents the ceiling from being completely opened if the connection between the first shelf 46331 and the second shelf 46332 is accidentally released. As an example, on the inner surface of the first shelf portion 46331, a piece of fabric can be sewn to the fixed end 46335a corresponding to the fixed belt 46335 to enhance structural strength and prevent tearing of the first shelf portion 46331 due to long-term use (e.g., repeated pulling) of the fixed belt 46335. Similarly, on the inner surface of the second shelf portion 46332, a piece of fabric can be sewn to enhance structural strength at the connection point with the removable end 46335b corresponding to the fixed belt 46335.

[0354] Referring to Figures 66, 67A and 67B, Figure 66 shows a carrier 4700 according to yet another embodiment of the fourth aspect of the present disclosure, Figure 67A shows a schematic view of a ceiling 4733 and a seat fabric 4750 connected thereto, and Figure 67B shows a schematic view of the carrier 4700 after removing the ceiling and the seat fabric connected thereto.

[0355] As shown in FIG. 66, similar to the carrier 4600 in the above-mentioned embodiment, the ceiling 4733 of the carrier 4700 includes a first ceiling 47331 having an area larger than that of the second ceiling 47332, a second ceiling 47332, and a ceiling connection assembly 47333, the ceiling connection assembly 47333 being provided between the first ceiling 47331 and the second ceiling 47332, and connecting the first ceiling 47331 and the second ceiling 47332 separably to each other, and an opening defined by the ceiling connection assembly 47333 is offset with respect to the center line. In another embodiment, two or more ceiling connection assemblies 47333 can be provided to open the ceiling 4733 at different angles. Also, similar to the ceiling connection assembly 46334 in the above-mentioned embodiment, a ceiling connection assembly 47334 may be provided in this embodiment, and description thereof will be omitted here. In one example, both the ceiling connection assembly 47333 and the ceiling connection assembly 47334 may be fastener assemblies.

[0356] The ceiling 4733 is provided with a fixed belt 47335 and a pull strap 47336. The fixed belt 47335 is connected to the first shelf 47331 at one end and detachably connected to the second shelf 47332 by, for example, a buckle at the other end, similar to the fixed belt 46335 of the above-mentioned embodiment, to prevent the ceiling 4733 from opening unexpectedly. The pull strap 47336 is fixed to the first shelf 47331 at both ends, which has a large area. In one example, the pull strap 47336 is fixed directly above the ceiling 4733, so that the user can grasp it to lift the carrier 4700. Similarly, a cloth can be sewn to the inner surface of the connection points at both ends between the first shelf 47331 and the pull strap 47336 to increase the structural strength.

[0357] In this embodiment, the ceiling 4733 can be integrally formed with the seat fabric (i.e., lining sheet) inside the case 4710 as shown in FIG. 67A, and when cleaning or maintenance of the carrier 4700 is required, the ceiling 4733 is removed together with the lining seat fabric 4750, and the removed carrier 4700 is as shown in FIG. 67B. In one example, as shown in FIG. 67A and FIG. 67B, after removing the ceiling 4733, the seat fabric 4750 connected to the ceiling 4733 and the seat fabric 4750 on the outside of the case 4710 are each provided with mutually cooperating parts of the ceiling connection assembly 47334, for example, two cooperating parts of a fastener assembly. In one example, the seat fabric 4750 on the outside of the case 4710 is not removable, but the present disclosure is not limited thereto. In another example, a connection assembly (e.g., a fastener assembly, not shown) may be provided between the ceiling 4733 and the connected seat fabric 4750, in this manner, the ceiling 4733 and the connected seat fabric 4750 can be separated, and the removed seat fabric 4750 and the seat fabric 4750 on the outside of the case 4710 can be connected via the mutually arranged ceiling connection assembly 47334, thereby increasing versatility in use.

[0358] 68A to 68D, a bracket device and a case according to one embodiment of the fourth aspect of the present disclosure and their combination are shown, respectively. Specifically, Fig. 68A shows a case 4810, Fig. 68B shows a bracket device 4820, Fig. 68C shows a bottom perspective view of the bracket device 4820 and the case 4810 assembled together, and Fig. 68D shows a cross-sectional view cut along line II in Fig. 68C and a partially enlarged view thereof.

[0359] The carrier 4800 of this embodiment includes a case 4810 and a bracket device 4820. As shown in FIG. 68A, the case 4810 (which may be referred to as a "mounting portion") includes a bottom 4811 and a peripheral wall 4812 connected to the periphery of the bottom 4811, and an accommodation space (i.e., a mounting space) formed by the bottom 4811 and the peripheral wall 4812 has an opening that opens upward. As shown in FIG. 68B, the bracket device 4820 includes a first bracket 4821, two second brackets 4822, a third bracket 4823, and a fixing assembly 4825 that connects the case 4810, the second bracket 4822, and the third bracket 4823.

[0360] Further referring to Fig. 68C, a perspective schematic view of a carrier 4800 assembled with the case 4810 shown in Fig. 68A and the bracket device 4820 shown in Fig. 68B is shown. Note that the side wall of the case 4810 shown in Fig. 68C is covered with a sheet fabric 4850 so that the second bracket 4822 is not visible.

[0361] 68A to 68C, a first bracket 4821 is coupled to a case 4810, and is disposed adjacent to the open portion of the case 4810, surrounding a peripheral wall 4812 of the case 4810 substantially horizontally. The two second brackets 4822 are respectively connected to the first bracket 4821 and are provided apart from each other along the vertical direction D41 of the case 4810, and each second bracket 4822 is coupled to the case 4810 and extends from one side of the peripheral wall 4812 of the case 4810 to the other side of the peripheral wall 4812 of the case 4810 via the bottom 4811 of the case 4810 along the horizontal axis direction D42 of the case 4810, and the third bracket 4823 is located on the bottom 4811 of the case 4810 and is provided at an interval from the bottom 4811 of the case 4810 (particularly, the lower surface of the bottom 4811 of the case 4810, i.e., the bottom surface of the case 4810) via a fixing assembly 4825. The first bracket 4821 and the third bracket 4823 are provided vertically on both the upper and lower sides of the bottom 4811 of the case 4810. Further, the second bracket 4822 may be a U-shaped structural member, the second bracket 4122 being disposed between the first bracket 4821 and the third bracket 4823 and having two vertical portions and a lateral portion, the two vertical portions being connected approximately vertically to the first bracket 4821, and the lateral portion being connected approximately vertically to the fixing assembly 4825.

[0362] Moreover, the third bracket 4823 includes an engagement member 48231, a connecting rod (see "48232" in FIG. 68D, described below), and a structural reinforcing member 48233. Specifically, the engagement member 48231 may be an annular structure, two fixing assemblies 4825 are symmetrically connected to each of the engagement members 48231 and separated from each other in the vertical axis direction D41 and the horizontal axis direction D42, and the structural reinforcing member 48233 is disposed between the two fixing assemblies 4825 on the vertical axis direction D41 and is substantially the same distance from these two fixing assemblies 4825, thereby further enhancing the structural support strength of the third bracket 4823.

[0363] 68D, the fixing assembly 4825 includes a guide member 48251 disposable in a plane surrounded by the engagement member 48231, and the fixing assembly 4825 is connected to the third bracket 4823 via a connecting rod 48232 connected to the engagement member 48231. Optionally, the guide member 48251 is connected substantially vertically and sleeves the connecting rod 48232 therein. The guide member 48251 may be plastic, metal, or other rigid material. For example, the guide member 48251 may be T-shaped (see FIG. 68B).

[0364] More specifically, the fixing assembly 4825 further includes a bracket connecting member 48252 and a locking set, as shown in Fig. 68A and Fig. 68D. The bottom 4811 of the case 4810 includes a plurality of through grooves 48111 (see Fig. 68A) penetrating the bottom 4811 of the case 4810, each of which is provided corresponding to the fixing assembly 4825. The locking set includes a locking member 48253a provided in the bracket connecting member 48252 and a locking fixing member 48253b fixedly locked with the locking member 48253a, and the locking fixing member 48253b is drilled vertically through the bracket connecting member 48252, the second bracket 4822, the guide member 48251, and the connecting rod 48232 in order to firmly connect the case 4810 and the bracket device 4820. Referring to FIG. 68E, there is shown a top schematic view of a combination of a bracket device 4820 applied to a carrier 4800 and a frame 4800' according to one embodiment of the fourth aspect of the present disclosure.

[0365] 68A to 68D and 68E, when the long-size carrier 4800 (also called "long-size carrier") is attached to the frame 4800', the second brackets 4822 are located on both sides of the longitudinal axis D41 of the seat plate 4810' on the frame 4800'. In detail, as shown in FIG. 68E, when the carrier 4800 is attached to the seat plate 4810' of the carrier 4800', there are a plurality of engagement point positions, for example, four engagement point positions. Each engagement point position is located between two second brackets 4822, and further between the guide member 48251 and the structural reinforcement member 48233 (obscured by the seat plate 4810' and visible in FIG. 68C).

[0366] Also, the configuration of the bracket device 4820 in this embodiment and its connection with the cases 4810, 4810' can refer to the bracket device 3120 and its case 3110 in the third embodiment of the present disclosure.

[0367] 69A to 69C, a bracket device, a case, and a combination of the two are shown according to one embodiment of the fourth aspect of the present disclosure. Specifically, Fig. 69A shows case 4910, Fig. 69B shows bracket device 4920, and Fig. 69C shows a bottom perspective view of bracket device 4920 and case 4910 assembled together.

[0368] As shown in Figures 69A to 69C, carrier 4900 has a shorter size compared to carrier 4800 in the previously described embodiment, but its case 4910 (see Figure 69A) and bracket device 4920 (see Figure 69B) are similar to carrier 4800 in the previously described embodiment, so a description thereof will be omitted and only the differences from carrier 4800 having a longer size in the previously described embodiment of the present disclosure will be described.

[0369] Specifically, because the size of the carrier 4900 in the longitudinal axis direction D41 is small, the engagement member 49231 of the third bracket 4923 may not be provided with a structural reinforcement member, i.e., no structural reinforcement member may be present between the fastening assemblies 4925. Instead, the engagement member 49231 may be provided with connection brackets 49234 at both opposing ends along the longitudinal axis direction D41, respectively, to further strengthen the connection between the case 4910 and the bracket device 4920. In one example, the connection bracket 49234 is disposed midway between the opposing ends of the engagement member 49231. In another example, multiple connection brackets 49234 may be provided at each end.

[0370] Referring to FIG. 69D, a schematic plan view of the combination of the bracket device 4920 and the frame 4900' applied to the carrier 4900 according to the above-mentioned embodiment of the present disclosure is shown. Referring to FIG. 69A-FIG. 69C and FIG. 69D, it can be seen that when the carrier 4900 having a shorter size (also called "short size carrier") is attached to the frame 4900', the second carrier 4922 is located above the seat plate 4910' of the frame 4900', i.e., the position where the second carrier 4922 is located is located within both side edges along the longitudinal axis direction D41 of the seat plate 4910'. In detail, as shown in FIG. 69D, when the carrier 4900 is attached to the seat plate 4910' of the frame 4900', it has a plurality of engagement point positions, for example, four engagement point positions. Each engagement position is located outside the two second brackets 4922 and further outside the guide member 49251.

[0371] 70A to 71B show another embodiment according to the fourth aspect of the present disclosure, FIGS. 70A to 70G show a carrier 41000 according to one embodiment, and FIGS. 71A and 71B show a carrier 41100 according to one embodiment.

[0372] 70A to 70C, the carrier 41000 includes a case 41010 and a bracket device 41020. The case 41010 (mounting portion) has a bottom 41011 and a peripheral wall 41012 connecting the bottom 41011, and the bottom 41011 and the peripheral wall 41012 define a storage space 41013 (i.e., mounting space) surrounding the storage space 41013. The case 41010 also has a plurality of through grooves 410111 penetrating the bottom 41011 of the case 41010, and is used for a case belt 41014 to pass through and be fixed. In one example, as shown in FIG. 70C, the bottom 41011 of the case 41010 is provided with a box belt 41014 having a T-shaped structure with a vertical segment 410141 and a horizontal segment 410142, and both ends of the horizontal segment 410142 (the first end 41014a and the second end 41014b constituting the box belt 41014) are fixed through the corresponding through grooves 410111, respectively, one end of the vertical segment 410141 is connected to the center of the horizontal segment 410142, and the other end is a free end constituting the third end 41014c of the box belt 41014. Optionally, the free end of the vertical segment 410141 may be provided with a ring or other connection structure for connecting a pet's pull (vest) or the like. In one example, the two box belts 41014 are symmetrically arranged on the bottom 41011 of the case 41010. For example, a user can cooperate with the box belt 41014 through a webbing (not shown) and connect a pet pull (such as a vest) to the case 41000. Specifically, both ends of the webbing may be provided with a joint (e.g., a hook), where one end of the webbing is connected to the third end 41014c of any T-type box belt 41014 through a corresponding joint member, and the other end is connected to a fixed ring of the pet pull, such as a webbing ring or a D-type ring on the vest, through a corresponding joint member. Alternatively or alternatively, one end of the webbing may be connected to the third end 41014c of one T-type box belt 41014 through a corresponding joint member, and the other end may pass through the fixed ring of the pet pull and be connected to the third end 41014c of the other T-type box belt 41014 through a corresponding joint member.However, the disclosure is not so limited, and the webbing or other similar device may be connected in other ways between the box belt 41014 and the pet's pull. Such a T-shaped structure may provide a two-point fastening at its first end 41014a and second end 41014b, providing the box belt 41014 with a more stable force to connect and fasten the pet's pull, etc., and improving the safety of the pet within the case 41010.

[0373] As shown in FIG. 70A, a collision prevention device 41015 is provided on the inside of the peripheral wall 41012 of the case 41010, and may be a single-layer structure or a multi-layer structure. When the collision prevention device 41015 is a single-layer structure, it may be made of, for example, inactive memory cotton or other materials with a certain shrinkage. When the collision prevention device 41015 is a multi-layer structure, it may be, for example, an EPP (expanded polypropylene) layer, a combination of an EPS (expanded polystyrene) layer and an EPE (pearl cotton) layer, a combination of an inactive memory cotton and a PE (polyethylene) layer, or a combination of other suitable materials. Optionally, the collision prevention device 41015 may be provided at least on one side of the case 41010, for example, on the side close to the door when the case 41010 is placed on the vehicle seat. Also, as shown in FIG. 70A, a plurality of ventilation holes 41016 may be provided around the peripheral wall 41012 of the case 41010. Specifically, the ventilation hole 41016 may be provided in the peripheral wall 41012 on the long side and / or short side of the case 41010. That is, the ventilation hole 41016 may be provided only in the peripheral wall 41012 on the long side of the case 41010, or only in the peripheral wall 41012 on the short side of the case 41010, or may be provided in both the peripheral wall 41012 on the long side and the peripheral wall 41012 on the short side of the case 41010. In one example, the collision prevention device 41015 may be provided with a relief portion 41015a for avoiding the ventilation hole 41016. For example, as shown in FIG. 70A, a collision prevention device 41015 and an air vent 41016 can be provided in the peripheral wall 41012 on the short side (for example, at least the side closer to the door) of the case 41010, and a part of the collision prevention device 41015 (i.e., the position corresponding to the air vent 41016) can be narrower than other parts to form a relief portion 41015a. In addition, the relief portion 41015a is not limited to the above configuration, and may have a hole structure, a perforated structure, or the like. Note that the air vent may be provided in the first to third embodiments described above, or in various cases described below, and the present disclosure is not limited thereto.

[0374] As shown in FIG. 70B, a reserved hole 410112 may be provided in the bottom 41011 of the case 41010, and when the box belt 41014 is not fixed using the through grooves 410111 on both sides, one-point fixation can be achieved using this reserved hole 410112.

[0375] To more clearly illustrate the method of fastening the box belt 41014, reference is made to Figs. 70D-70G. Specifically, Fig. 70D shows the bracket apparatus 41020, also shown generally with the box belt 41014 disposed thereon. Figs. 70E and 70F show the bracket apparatus 41020 at different angles. Fig. 70G shows the bracket apparatus 41020, also showing an exploded view of a portion of the fastening assembly 41025 of the bracket apparatus 41020.

[0376] As shown in FIG. 70D, the bracket device 41020 includes a first bracket 41021, a second bracket 41022, and a third bracket 41023, where the first bracket 41021, the second bracket 41022, and the third bracket 41023 have a structure similar to that of the above-mentioned embodiment (e.g., the carrier 4800), and therefore will not be described here.

[0377] The bracket device 41020 further includes a plurality of fixing assemblies 41025 for connecting the case 41010, the second bracket 41022, and the third bracket 41023, and the third bracket 41023 may be disposed at an interval with the bottom 41011 of the case 41010 (particularly, the lower surface of the bottom 41011 of the case 41010, i.e., the bottom surface of the case 41010) or the second bracket 41022 via the fixing assemblies 41025. Referring to FIG. 70A and FIG. 70D to FIG. 70G, the fixing assemblies 41025 may be disposed symmetrically and spaced apart from each other in the vertical axis direction D41 and the horizontal axis direction D42, and may be disposed corresponding to the through groove 410111 in the case 41010.

[0378] Specifically, as shown in FIG. 70E to FIG. 70G, the fixing assembly 41025 includes a guide member 410251, and the guide member 410251 is at the bottom of the fixing assembly 41025. In this example, the guide member 410251 may be disposed in a plane surrounded by the engagement member 410231 of the third bracket 41023 and connected to the third bracket 41023. Optionally, the guide member 410251 may be made of plastic, metal, or other material having a certain rigidity. Furthermore, the fixing assembly 41025 includes a bracket connecting member 410252 and a locking set 410253, as shown in FIG. 70G. The bracket connecting member 410252 penetrates the through groove 410111 of the bottom 41011 of the case 41010, and the diameter of its upper end is larger than the diameter of the through groove 410111. The locking set 410253 is drilled in the bracket connecting member 410252, the second bracket 41022, and the guide member 410251 in that order to fix them to one another, thereby stably connecting the case 41010 and the bracket device 41020.

[0379] In this embodiment, as shown in Fig. 70F and Fig. 70G, the fixing assembly 41025 may further include a box belt engaging portion 410254, which is provided, for example, on an edge of the bracket connecting member 410252. Specifically, the edge of the bracket connecting member 410252 may have a notch to form the box belt engaging portion 410254 having an annular structure, and the box belt 41014 may enter the annular structure of the box belt engaging portion 410254 through the notch, and the box belt 41014 may engage with the box belt engaging portion 410254 while avoiding swinging. In one example, the box belt engaging portion 410254 may be integrally formed with the bracket connecting member 410252. The fastening assembly 41025 may also include a box belt fastening portion 410256, which is connected to the bracket connecting member 410252 via a bolt 410255 and is disposed between the bracket connecting member 410252 and the second bracket 41022. Optionally, the box belt fastening portion 410256 has a bent corner, i.e., its edge is bent upward (e.g., the box belt fastening portion 410256 has an L-shaped structure) and has a slot 410256a at the corner. One end of the box belt 41014 can pass through the slot 410256a and surround the corner fixed to the box belt fastening portion 410256 (e.g., by stitching), and the other end of the box belt 41014 can continue to extend upward through the box belt engagement portion 410254.

[0380] Also, as shown in FIG. 70D to FIG. 70G, the carrier 41000 having a longer size may have a structural reinforcing member 410233. The structural reinforcing member 410233 is disposed on the third bracket 41023, disposed between the two fixing assemblies 41025 on the vertical axis direction D41, and has a substantially equal distance from the two fixing assemblies 41025, thereby further enhancing the structural support strength of the third bracket 41023. Optionally, the engaging member 410231 of the third bracket 41023 may be provided with connecting brackets 410234 at both opposing ends in the vertical axis direction D41, and the connecting brackets 410234 may be drilled into the case 41010, and the upper end may be provided with a bracket connecting member 410252 and a box belt engaging portion 410254 according to actual needs.

[0381] Referring to Figures 71A and 71B, a carrier 41100 having a short size may be provided with a through groove 411111 and a box belt 41114, and / or an air hole 41116, and / or a collision prevention device, etc., and may have a configuration similar to that of the above-mentioned embodiment, but details will be omitted here.

[0382] 71C and 71D show a carrier 41200 according to an embodiment of the present disclosure. Referring to Fig. 71C and 71D, a handle 41260 of the carrier 41200 may be provided at either end or both ends with a clip buckle 41261 for clamping the belt body 41270 so that the belt body 41270 can better secure the carrier to the vehicle seat.

[0383] In addition, if the structures do not interfere with each other, the above-mentioned embodiments of the present disclosure and the respective parts in each embodiment can be used in combination; for example, the strap of the embodiment shown in FIG. 64A can be used in combination with the case and / or connecting structure and / or fixing belt of the embodiment shown in FIG. 65.

[0384] In a fifth aspect of the present disclosure, there is also provided a carrier that can be stably fixed to a vehicle or mobile device when in use, and can be folded and stored in the vehicle when not in use to reduce the space occupied.

[0385] 72 and 73, Fig. 72 shows a perspective view of a carrier 5100 according to one embodiment of the fifth aspect of the present disclosure. Fig. 73 shows an exploded perspective view of the portion of the carrier shown in Fig. 72 with the case of the carrier 5100 separated from the bracket assembly.

[0386] As shown in FIG. 72, the carrier 5100 (e.g., a pet carrier) of the present disclosure includes a case 5110 and a bracket assembly 5120. The case 5110 (i.e., a mounting portion) includes a main body 5111 and a bottom support member 5112, and the main body 5111 is detachably sleeved on the bottom support member 5112 (i.e., as a peripheral wall of the case 5110), and forms an accommodation space (i.e., a mounting space) for carrying a pet together with the bottom support member 5112. The bottom support member 5112 constitutes the bottom of the case 5110, where an upper surface of the bottom support member 5112 (i.e., an upper surface of the bottom of the case 5110) is located in the accommodation space, and a lower surface of the bottom support member 5112 (i.e., a lower surface of the bottom) constitutes the bottom surface of the case 5110. The main body 5111 constitutes the four side surfaces and the upper surface of the case 5110. The main body 5111 is detachably connected to the bottom support member 5112 via at least one connection assembly. Specifically, in one example, the at least one connection assembly includes a first connection part 51116 and a second connection part 51117 detachably connected to each other, where the first connection part 51116 is provided on the main body 5111 and the second connection part 51117 is provided on the bottom support member 5112. In a specific example, the first connection part 51116 and the second connection part 51117 are fasteners that are fitted to each other, but the present disclosure is not limited thereto, and may be, for example, a fitting engagement structure, a slide fastener structure, a hook and loop fastener, a hook, a ring, etc., and may optionally adopt a flexible connection manner. Alternatively, in another example, the main body 5111 and the bottom support member 5112 may be fixedly connected (for example, sewn) or integrally molded.

[0387] 72 and 73, the bracket assembly 5120 is used to secure the carrier 5100 to a moving device such as a vehicle or a cart. The case 5110 is placed on the bracket assembly 5120 via a bottom support member 5112. As shown in FIG. 73, the bracket assembly 5120 includes an engagement member 5121 that engages with an engagement structure provided correspondingly on the moving device, as described in detail below with reference to FIGS. 81-86. In one example, the engagement member 5121 can form an annular structure spaced apart from the bottom of the bottom support member 5112. Here, the center of the engagement member 5121 is substantially aligned vertically with the center of the case 5110. The bracket assembly 5120 (also referred to as a "bracket device") may have a structure similar to the third bracket 3123 according to the third aspect of the present disclosure (see Figures 32B and 32C), for example, the engagement member 5121 of this embodiment may correspond to the engagement member 31231 shown in Figures 32B and 32C, the structural reinforcement member 5124 may correspond to the second structural reinforcement member 31234 shown in Figure 32C, and the engagement member 5121 and the structural reinforcement member 5124 may be collectively referred to as the "third bracket" of this embodiment.

[0388] Also, the bracket assembly 5120 may include four first connection brackets 5122, which are provided on the engagement member 5121 and connected to the bottom of the case 5110 and arranged at a distance from each other, for example, close to each of the four corners of the bottom of the case 5110, to provide a balanced and stable support for the case 5110. Furthermore, the four first connection brackets 5122 may be provided symmetrically with respect to the vertical axis direction D51 and the horizontal axis direction D52 of the carrier 5100 on opposite sides of the horizontal axis direction of the engagement member 5121. For example, as shown in FIG. 2, the four first connection brackets 5122 are respectively arranged symmetrically on two long sides of the annular structure of the engagement member 5121. However, it should be understood that the engagement member of the present disclosure is not limited to the above shape, and the first connection brackets 5122 are not limited to the above number. Optionally, in another example, only two first connection brackets 5122 are provided, and the two first connection brackets 5122 may be provided diagonally. In other examples, the number of first connecting brackets 5122 may be three, five, etc.

[0389] Furthermore, the bracket assembly 5120 may include a plurality of second connection brackets 5123, which are respectively attached to both sides of the engagement member 5121 along the longitudinal axis direction D51 and connected to the bottom of the case 5110, to further strengthen the connection between the case 5110 and the bracket assembly 5120. Although only two second connection brackets 5123 are shown in FIG. 2, the present disclosure is not limited thereto, and four, six, etc. may be provided. In another example, the first connection bracket 5122 and the second connection bracket 5123 may be selectively installed as long as the connection between the case 5110 and the bracket assembly 5120 can be stabilized, and the present disclosure is not limited thereto.

[0390] The bracket assembly 5120 may also include a structural reinforcement member 5124 located at approximately the middle of the longitudinal axis direction D51 of the engagement member 5121. The central portion of the structural reinforcement member 5124 has a curved shape toward the bottom of the case 5110. That is, the height of the central portion is higher than the height of both ends, so that the bracket device 5120 has high impact resistance and is not easily deformed by force.

[0391] Here, the first connecting bracket 5122 and the second connecting bracket 5123 can be collectively referred to as a "fixing assembly" and are provided between the case and the third bracket (including the engaging member 1521) so as to provide a gap between the third bracket and the bottom of the case. Note that the configuration of the bracket assembly of the present disclosure is not limited to this embodiment.

[0392] 74 to 76, FIG. 74 shows an oblique view of the main body 5111 shown in FIG. 72, FIG. 75 shows an oblique view of a side support member of the main body 5111 shown in FIG. 74, and FIG. 76 shows an oblique view of an upper support member of the main body 5111 shown in FIG. 74.

[0393] As shown in FIG. 74, the main body 5111 includes, for example, a first support member and a second support member in this embodiment, the first support member being a side support member 51111, and the second support member being an upper support member 51112. The side support member 51111 and the upper support member 51112 are detachably connected to each other, for example, by other connections such as a fastener connection or a magic seal. However, it is understood that the first support member and the second support member can be set to other structures depending on the structure of the main body 5111, and for example, the first support member and the second support member can be set to have a shape that is half of the main body 5111, i.e., a mirror image symmetrical shape.

[0394] 74 and 75, in one example, the side support member 51111 can include a first sub-support member 51111a and a second sub-support member 51111b, each removably connected to either side of the upper support member 51112 (i.e., the upper support member 51112 is between the first sub-support member 51111a and the second sub-support member 51111b) to form the main body 5111. Here, the first sub-support member 51111a and the second sub-support member 51111b form two side surfaces of the main body 5111. More specifically, the first sub-support member 51111a and the second sub-support member 51111b are independent of each other and each have a substantially horizontally extending bottom edge 51111m and an arched upper edge 51111n, the bottom edges 51111m of the first sub-support member 51111a and the second sub-support member 51111b are each removably connected to corresponding edges of the bottom support member 5112, and the upper edges 51111n are removably connected to both sides of the arch-shaped upper support member 51112.

[0395] In one example, as shown in FIG. 75, the first sub-support member 51111a and the second sub-support member 51111b can be connected to each other by a connection structure for connecting together the bottom support member 5112 (see FIG. 2), such as the first connection part 51116. Specifically, the first connection part 51116 is connected to the bottom edge 51111m of the first sub-support member 51111a and the second sub-support member 51111b. Optionally, the first connection part 51116 is a soft material (i.e., foldable, deformable, etc.), such as a fastener structure, fabric, etc., and after the side support member 51111 is removed from the bottom support member 5112 (see FIG. 2) and separated from the upper support member 51112, the first sub-support member 51111a and the second sub-support member 51111b can be folded relative to each other.

[0396] Optionally, the side support members 51111 can use materials with a certain pressure-resistant capacity to prevent deformation during transportation, such as paperboard, plastic plate, metal plate, etc., but the present disclosure is not limited thereto.

[0397] As shown in Figures 74 and 76, the upper support member 51112 is composed of three sheet-like members 51112a, 51112b, and 51112c connected to each other, and is arch-shaped. The three sheet-like members 51112a, 51112b, and 51112c can respectively form the upper surface and the other two side surfaces of the main body 5111. For example, the first sheet-like member 51112a and the third sheet-like member 51112c respectively form the other two side surfaces of the main body 5111 (i.e., between the side surfaces formed by the first sub-support member 51111a and the second sub-support member 51111b), and the second sheet-like member 51112b forms the upper surface of the main body 5111. Optionally, all three sheet-like members 51112a, 51112b, 51112c may be made of materials having a certain pressure-resistant capability to prevent deformation during transportation, such as paperboard, plastic plate material, metal plate material, etc., although the present disclosure is not limited thereto.

[0398] In one example, the first sheet-like member 51112a and the second sheet-like member 51112b are connected to each other by a connection structure (not shown for shielding) and can be folded relative to each other, and the second sheet-like member 51112b and the third sheet-like member 51112c are connected to each other by another connection structure (see "51112f" shown in FIG. 76) and can be folded relative to each other, so that the first sheet-like member 51112a and the third sheet-like member 51112c can be folded inwardly relative to the second sheet-like member 51112b. That is, the sheet-like members on both sides can be folded inwardly relative to the middle sheet-like member, so that the removed upper support member 51112 can be folded to make it smaller, and further the space required for storage can be reduced and the transportation cost can be reduced. The above connection structure and other connection structures may be flexible connection structures, such as slit cloth, or may be rigid connection structures. In one embodiment, the upper support member 51112 can be formed as a one-piece member (e.g., by sawing, etc.) with the above-mentioned connection structure, i.e., the three sheet-like members 51112a, 51112b, 51112c can be formed as a single piece. Also, as shown in Fig. 74, the upper side of the upper support member 51112 (i.e., the second sheet-like member 51112b) may be provided with a carrying handle 51115 for lifting the carrier, for example, at a central position on the upper side.

[0399] In one example, as shown in Fig. 76, third connection parts 51118a, 51118b are provided on two sides of the upper support member 51112, respectively, and can cooperate with fourth connection parts 51119a, 51119b (see Fig. 75) provided corresponding to the upper edges 51111n of the first sub-support member 51111a and the second sub-support member 51111b, respectively. The third connection parts 51118a, 51118b are detachably connected to the fourth connection parts 51119a, 51119b, respectively, so that the upper support member 51112 is detachably connected to the first sub-support member 51111a and the second sub-support member 51111b, respectively. Here, the third connection parts 51118a, 51118b and the fourth connection parts 51119a, 51119b may be soft connection parts such as fastener structures, but the present disclosure is not limited thereto. In other examples, the third connection parts 51118a, 51118b and the fourth connection parts 51119a, 51119b may be engagement structures, snap structures, hook ring fittings, and the like. Specifically, as shown in FIG. 75, the fourth connection part 51119a (e.g., fastener structure) provided on the first sub-support member 51111a extends over the entire upper edge 51111n of the first sub-support member 51111a. Additionally or alternatively, the fourth connection part 51119b (e.g., fastener structure) provided on the second sub-support member 51111b extends over the entire upper edge of the second sub-support member 51111b. Correspondingly, as shown in Fig. 76, the third connection parts 51118a, 51118b (e.g., fastener structures) on both sides of the upper support member 51112 may extend along the entire side of the upper support member 51112, and optionally, the third connection parts 51118a, 51118b may be provided on both long sides of the upper support member 51112, respectively. With such a design, the gap between the upper support member 51112 and the lateral support member 51111 can be completely closed, and the connection between the two can be more secure.In addition, the upper support member 51112 can be completely separated from the side support members 51111 on both sides along its longitudinal side edges, so that the case 5110 can be completely removed when the carrier is not used, or the upper support member 51112 can be partially separated from the side support members 51111 on any side as needed (i.e., the degree of separation between the upper support member 51112 and the side support members 51111 can be controlled, making it convenient for the user to take items in and out of the case 5110).

[0400] With the above configuration, when the upper support member 51112 is connected to the lateral support member 51111 (i.e., connected to the upper edge portion or completely to the lateral support member 51111 along the side edge of the upper support member 51112), the main body 5111 (or the case 5110) is in an unfolded state, and when the carrier is not used, the upper support member 51112 can be separated from the lateral support member 51111, and the lateral support member 51111 and / or the upper support member 51112 can be stored by the connection structure (particularly a flexible connection structure) between the sheet-like members 51112a, 51112b, 51112c of the upper support member 51112 and / or the connection structure (particularly a flexible connection structure such as the first connection part 51116) between the first sub-support member 51111a and the second sub-support member 51111b of the lateral support member 51111, thereby reducing the space required for storage. When the carrier needs to be used again, the side support members 51111 and / or the upper support member 51112 can be unfolded and connected together. Such a design has the advantages of simple operation, low cost, small storage space, and easy transportation.

[0401] Also, referring again to Figs. 74 to 76, any side of the main body 5111 may be provided with a window fabric that can be opened and closed to provide a window for a pet to enter and exit the case. Specifically, a window fabric 51111d may be provided on any of the side support members 51111 of the main body 5111. Additionally or alternatively, a window fabric 51112d may be provided on the upper support member 51112 of the main body 5111. For example, as shown in Fig. 75, the two side support members 51111 are each provided with a window fabric 51111d. Furthermore, for example, as shown in Fig. 74, the surface near both ends of the upper support member 51112 may each be provided with a window fabric 51112d. These window fabrics can be closed and opened by a fastener structure, and may be formed of one fastener (the structure shown in the side support member 51111 in Fig. 75) or may be formed of two fasteners opened in opposite directions (as shown in Fig. 74).

[0402] Also, as shown in Fig. 74, the window fabric 51111d, 51112d may be a soft fabric such as a web. However, it should be understood that the present disclosure is not so limited and the window fabric 51111d, 51112d may be other forms of fabric or soft materials. The upper portion of the window fabric may be provided with a retaining member 51112e that keeps the window fabric open.

[0403] The body of the present disclosure is not limited to the above configuration, and for example, the lateral support members of the body may be integrally or integrally connected and molded, as described below.

[0404] Referring to Figures 77 and 78, Figure 77 shows a perspective view of a lateral support member according to another embodiment of the fifth aspect of the present disclosure, and Figure 78 shows a perspective view of an upper support member cooperated with the lateral support member shown in Figure 77.

[0405] As shown in Figures 77 and 78, in another embodiment, the main body (the assembled main body is not shown in this embodiment) includes a side support member 51111A and an upper support member 51112A. The side support member 51111A includes a first sub-support member 51111Aa and a second sub-support member 51111Ab that are integrally connected via a connection sheet 51111Ac (also called a "connection structure"), that is, the connection sheet 51111Ac is integrally molded with the first sub-support member 51111Aa and the second sub-support member 51111Ab. The connection sheet 51111Ac is connected to both ends of the first sub-support member 51111Aa and the second sub-support member 51111Ab, respectively. More specifically, as shown in FIG. 77, the bottom edges of the first sub-support member 51111Aa and the second sub-support member 51111Ab are integrally connected to the bottom edge of the connecting sheet 51111Ac in the circumferential direction. The top edges of the first sub-support member 51111Aa and the second sub-support member 51111Ab are formed in an arch shape and are integrally connected via the top edge of the connecting sheet 51111Ac, and the side support member 51111A is detachably connected between the upper support member 51112A (see FIG. 78) and the bottom support member (not shown in this embodiment). For example, the connecting sheet 51111Ac in this embodiment may be a sewing part. Optionally, the connecting sheet 51111Ac may be a flexible material so that the two sub-support members of the side support member 51111A can be pressed toward each other during storage, thereby reducing the volume after contraction of the case. In this embodiment, the first connecting part 51116 is connected to the bottom edges of the first sub-support member 51111Aa and the second sub-support member 51111Ab and the bottom edge of the connecting sheet 51111Ac, and can cooperate with a second connecting part (not shown) provided on the bottom support member (not shown) to realize a detachable connection.

[0406] Also, the upper support member 51112A in this embodiment may be detachably connected to the side support member 51111A via a flexible connection part (e.g., a...

Claims

1. A carrier including a mounting portion and a bracket device, The mounting portion includes a bottom portion, and a mounting space is formed in the bottom portion. The bracket device includes a first bracket and a second bracket, the first bracket is coupled to the mounting portion and is provided around the periphery of the mounting portion; the second bracket is connected to the first bracket and coupled to the mounting portion; the second bracket extends from one side of the periphery of the mounting portion through a bottom portion of the mounting portion to the other side of the periphery of the mounting portion; A carrier characterized by:

2. The bracket apparatus further includes a third bracket and a fastening assembly. the third bracket is located on one side of the bottom of the placement portion and is used to fix the carrier to a moving device; the fixing assembly connects the mounting portion and the third bracket; a lower surface of the bottom portion constitutes a bottom surface of the mounting portion, and the third bracket is provided at a distance from the bottom surface of the mounting portion via the fixing assembly.

2. The carrier of claim 1.

3. the second bracket is a U-shaped structural member, the second bracket having two vertical portions and a lateral portion, the two vertical portions being substantially vertically connected to the first bracket, and the lateral portion being substantially vertically connected to the fastening assembly; 3. The carrier of claim 2.

4. The mounting portion is a case, and the case further includes a peripheral wall connected to the bottom portion, and the bottom portion and the peripheral wall form the mounting space.

3. The carrier of claim 2.

5. The fastening assembly includes a first connecting bracket; the first connecting bracket connects the second bracket and the third bracket; 5. The carrier of claim 4.

6. The fastening assembly further includes a bracket connecting member; a through groove in the bottom of the case, the through groove being located at a position corresponding to the first connecting bracket, and the bracket connecting member being at least partially located within the through groove and abutting against the second bracket; 6. The carrier of claim 5.

7. The fixation assembly further includes a locking set; The locking set includes a locking fixing member and a locking member, the locking member is provided on the bracket connecting member, and the locking fixing member passes through the third bracket, the first connecting bracket, the second bracket and the bracket connecting member and is locked and fixed to the locking member.

7. The carrier of claim 6.

8. The fixation assembly further includes a guide member. The guide member is connected to the third bracket, is located at a position corresponding to the first connecting bracket, and is used to guide an engagement structure between the third bracket and the moving device.

7. The carrier of claim 6.

9. The fixation assembly further includes a locking set; The locking set includes a locking fixing member and a locking member, the locking member is provided on the bracket connecting member, and the locking fixing member passes through the guide member, the third bracket, the first connecting bracket, the second bracket and the bracket connecting member and is mutually locked and fixed to the locking member.

9. The carrier of claim 8.

10. The fastening assembly further includes a second connecting bracket; the second connecting bracket connects the case and the third bracket; 6. The carrier of claim 5.

11. The fastening assembly further includes a bracket connecting member; The case has a through groove at the bottom thereof, the second connecting bracket is connected to the third bracket and at least a portion of the second connecting bracket is located within the through groove, and the bracket connecting member is at least a portion of the second connecting bracket and abuts against the second connecting bracket. The carrier of claim 10.

12. The fixation assembly further includes a locking set; The locking set includes a locking fixing member and a locking member, the locking member is provided on the bracket connecting member, and the locking fixing member passes through the third bracket, the second connecting bracket and the bracket connecting member and is locked to the locking member. The carrier of claim 11.

13. a recessed portion is provided on the bottom of the case, and a portion of the bracket connecting member is accommodated in the recessed portion and does not protrude from the bottom of the case; 7. The carrier of claim 6.

14. the third bracket includes an engagement member and a structural reinforcement member; the engaging member cooperates with a corresponding engaging structure on the moving device; The structural reinforcement member has both ends connected to the engaging member and is located at a substantially midpoint along the longitudinal axis of the engaging member. The carrier according to any one of claims 4 to 13.

15. the third bracket further includes another structural reinforcement member; The other structural reinforcement member extends along the horizontal axis of the case, is connected to the engaging member, and is provided on at least one side of the engaging member.

15. The carrier of claim 14.

16. the engaging member is an annular structural member, and a center of the engaging member substantially coincides with a center of the first bracket; 15. The carrier of claim 14.

17. the third bracket includes two other structural reinforcement members, each of which is provided on either side of the engagement member; 15. The carrier of claim 14.

18. a central portion of the structural reinforcement member being bent toward a bottom portion of the placement portion and abutting against the bottom portion of the placement portion; 15. The carrier of claim 14.

19. A box belt having a T-shaped structure is provided at the bottom of the case, The box belt has a vertical segment and a horizontal segment, the horizontal segment constitutes a first end and a second end of the box belt, and is fixed through a corresponding through-slot in the bottom of the case, one end of the vertical segment is connected to the horizontal segment, and the other end is a free end, which constitutes a third end of the box belt. The carrier according to any one of claims 4 to 13.

20. The case is further provided with a collision prevention device, the collision prevention device being provided on at least one side of the case and positioned inside a peripheral wall of the case. The carrier according to any one of claims 4 to 13.

21. A plurality of ventilation holes are provided in the peripheral wall of the case. The carrier according to any one of claims 4 to 13.

22. A cushion is attached to the mounting portion, the cushion includes a support layer, a flexible layer, and a covering layer, the support layer and the flexible layer are laminated and encapsulated in the covering layer. The carrier according to any one of claims 1 to 13.

23. A carrier including a mounting portion and a bracket device, the mounting portion has a bottom portion, a mounting space is formed in the bottom portion, and a lower surface of the bottom portion constitutes a bottom surface of the mounting portion, the bracket device is configured to support the mounting portion and includes a third bracket and a fixing assembly; the third bracket is located on one side of the bottom of the placement portion and is used to fix the carrier to a moving device; the fixing assembly is connected between the mounting portion and the third bracket, so that the third bracket is provided at a distance from a bottom surface of the mounting portion via the fixing assembly. A carrier characterized by:

24. The mounting portion is a case, the case including a main body and a bottom support member, the main body being removably sleeved to the bottom support member, The case is disposed on the bracket device via the bottom support member.

24. The carrier of claim 23.

25. the body is removably connected to the bottom support member via at least one connection assembly; 25. The carrier of claim 24.

26. The at least one connection assembly includes a first connection part and a second connection part that are detachably connected to each other, the first connection part being provided on the body and the second connection part being provided on the bottom support member.

26. The carrier of claim 25.

27. The main body is composed of a first support member and a second support member, and the first support member and the second support member are detachably connected to each other.

25. The carrier of claim 24.

28. After the first support member and the second support member are detached and separated from each other, the first support member and / or the second support member can be switched from an expanded state to a stored state by at least one connection structure, 28. The carrier of claim 27.

29. the first support member is a lateral support member forming at least a portion of two sides of the body; the second support member is an upper support member and forms at least a portion of the top surface and the other two side surfaces of the body; 28. The carrier of claim 27.

30. The upper support member is composed of a first sheet-like member, a second sheet-like member, and a third sheet-like member, and the first sheet-like member, the second sheet-like member, and the third sheet-like member are connected by a connecting structure and can be folded relatively.

30. The carrier of claim 29.

31. After the upper support member is separated from the side support member, the upper support member can be switched from the deployed state to the stored state by the connection structure.

31. The carrier of claim 30.

32. The side support members include a first sub-support member and a second sub-support member, the first sub-support member and the second sub-support member being independent of one another and each having a substantially horizontally extending bottom edge and an arcuate top edge, the bottom edges of the first sub-support member and the second sub-support member being releasably connected to corresponding edges of the bottom support member, and the top edges of the first sub-support member and the second sub-support member being releasably connected to opposite sides of the arcuate upper support member, 30. The carrier of claim 29.

33. the first sub-support member and the second sub-support member are connected to each other via a first connection assembly and are removably connected to the bottom support member; After the side support member is separated from the upper support member, the first sub-support member and the second sub-support member can be folded relative to each other, and the side support member is switched from the deployed state to the stored state.

33. The carrier of claim 32.

34. a first sub-support member, a second sub-support member, and a connecting sheet connected between the first sub-support member and the second sub-support member are integrally formed to constitute the side support member, the bottom edges of the first sub-support member and the second sub-support member and the bottom edge of the connecting sheet are integrally connected in the circumferential direction, the upper edges of the first sub-support member and the second sub-support member are formed in an arch shape and are integrally connected via the upper edge of the connecting sheet, and the side support member is detachably connected between the upper support member and the bottom support member.

30. The carrier of claim 29.

35. After the side support member is separated from the upper support member, the first sub-support member and the second sub-support member can be folded relative to each other, and the side support member is switched from the deployed state to the stored state.

35. The carrier of claim 34.

36. A downwardly extending extension is provided on a bottom edge of the body, and the extension is inserted into a correspondingly provided insertion connection recess in the bottom support member. A carrier according to any one of claims 24 to 35.

37. A carrier including a case and a ceiling assembly, The case defines a mounting space, The roof assembly is mounted on the case of the carrier or covers at least a portion of the seat fabric of the case; The ceiling assembly includes a ceiling and a ceiling connection assembly; The ceiling connection assembly is provided between the ceiling and the case or between the ceiling and the seat fabric, and connects the ceiling and the case or the seat fabric in a detachable manner to each other; The ceiling connection assembly includes a ceiling frame and an unlocking operation member. the ceiling frame is connected to a periphery of the ceiling to support the ceiling, and is detachably provided around an opening of the case; The unlocking operation member is provided on the ceiling frame or sleeved on a bracket device on the outside of the case, and is operated to move from a locked position to an unlocked position to unlock the ceiling assembly from the case. A carrier characterized by:

38. The case further includes a bracket device, the bracket device supports the case and includes a first bracket, the first bracket is disposed around an opening of the case, the ceiling connection assembly is removably connected to the first bracket; 38. The carrier of claim 37.

39. The ceiling connection assembly includes a ceiling lock device; The ceiling locking device is at least partially mounted on the ceiling frame and cooperates with a corresponding ceiling locking portion of the carrier to lock the ceiling assembly above the case; The ceiling locking device includes a locking member, The locking member is attached to the ceiling frame, and engages with the ceiling locking portion or disengages from the ceiling locking portion by movement relative to the ceiling frame, thereby locking the ceiling frame to the case or unlocking the ceiling frame from the case.

39. The carrier of claim 38.

40. The ceiling lock device further includes an unlocking operation member, the unlocking operation member operably acting on the locking member, When the unlocking operation member is located at the locking position, the locking member is engaged with the ceiling locking portion, and when the unlocking operation member is operated to the unlocking position, the locking member is disengaged from the ceiling locking portion.

40. The carrier of claim 39.

41. The lock member is pivotally attached to the ceiling frame about a pivot point, and is pivotally attached to the unlocking operation member about another pivot point different from the pivot point, The unlocking operation member is provided on the ceiling frame and can move between the locking position and the unlocking position relative to the ceiling frame, and the locking member can be pivoted relative to the ceiling frame about the pivot point.

41. The carrier of claim 40.

42. The locking member has a snap hook extending toward the ceiling locking portion, The ceiling lock portion includes an engagement pin provided corresponding to the snap hook, When the unlocking operation member is in the locking position, the snap hook engages with the engagement pin, and when the unlocking operation member is operated to push and pivot the locking member to be in the unlocking position, the snap hook disengages from the engagement pin.

42. The carrier of claim 41.

43. The ceiling lock device further includes an elastic reset member connected between the unlocking operation member and the ceiling frame, and always provides a force to cause the unlocking operation member to be in or return to the locked position.

42. The carrier of claim 41.

44. the unlocking operation member is provided on the ceiling locking portion and is movable between the locking position and the unlocking position relative to the ceiling locking portion, the locking member is connected to the ceiling frame and extends from the ceiling frame to a bracket device of the carrier; The ceiling locking part is connected to the unlocking operation member and can be engaged with or disengaged from the locking member by moving in accordance with the operation of the unlocking operation member.

41. The carrier of claim 40.

45. The locking member is a first sheet-like member, the ceiling locking portion includes a second sheet-like member, and an insertion space for accommodating the first sheet-like member is formed between the second sheet-like member and the unlocking operation member, an engagement hole is formed in one of the first sheet-like member and the second sheet-like member, and an engagement protrusion is provided on the other of the first sheet-like member and the second sheet-like member to be aligned with the engagement hole; When the unlocking operation member is in the locked position, the engagement hole engages with the engagement protrusion, and when the unlocking operation member is operated to push the second sheet-like member away from the first sheet-like member to be in the unlocked position, the engagement hole disengages from the engagement protrusion.

45. The carrier of claim 44.

46. The ceiling locking device further includes an elastic reset member, The elastic reset member is connected between one of the unlocking operation member and the second sheet-like member and the carrier, and always provides a force to move the unlocking operation member to the locked position or to return it to the locked position.

46. ​​The carrier of claim 45.

47. The ceiling frame has a three-stage folding structure.

40. The carrier of claim 39.

48. The ceiling frame includes a first pivot segment, a second pivot segment and two lock segments, both ends of the first pivot segment are pivotally connected to one ends of the two lock segments via first pivot parts, and both ends of the second pivot segment are pivotally connected to the other ends of the two lock segments via second pivot parts, and two of the ceiling lock devices are provided on the two lock segments, respectively, so that the two lock segments can be locked to bracket devices of the carrier.

48. The carrier of claim 47.

49. each of the first pivot portion and the second pivot portion is provided with gear teeth, and the first pivot segment and the second pivot segment can each be at a different angle relative to the locking segment; 49. The carrier of claim 48.

50. A reset spring is provided on each of the first pivotal portion and the second pivotal portion, which constantly pushes the first pivotal portion and the second pivotal portion in the direction of deployment of the ceiling, thereby providing an auxiliary force to the deployment process of the ceiling.

50. The carrier of claim 49.

51. A connection structure is provided between the ceiling and a case of the carrier, the connecting structure includes a connecting part and a cooperating connecting part, the connecting part being provided on opposite sides of the case, the cooperating connecting part being provided on corresponding sides of the ceiling and joined to the connecting part to keep the ceiling closed; 38. The carrier of claim 37.

52. An engagement base assembly including a seat plate and a locking mechanism, the seat plate is used to place an object thereon; the locking mechanism is attached to the seat plate and is used to lock and unlock the object; The locking mechanism includes at least one unlocking operation member and at least one locking member, the at least one unlocking operation member is slidable between a locked position and an unlocked position relative to the seat plate; The at least one locking member is slidably provided on the seat plate, When the unlocking operation member is in the locked position, the locking member can lock the object, When the unlocking operation member is operated to move from the locked position to the unlocked position, the locking member moves in accordance with the movement of the unlocking operation member to unlock the object.

13. An engaging base assembly comprising:

53. The at least one locking member includes a first locking member and a second locking member, the first locking member and the second locking member are connected by an interlocking device, and the first locking member and the second locking member move synchronously in the same direction as the unlocking operation member or in the opposite direction to unlock the object.

53. The mating base assembly of claim 52.

54. The first locking member and the second locking member are provided on the same side of the seat plate.

54. The mating base assembly of claim 53.

55. In response to the first locking member and the second locking member moving in the same direction, the first locking member is fixedly connected to the second locking member, and an elastic device is provided between at least one of the first locking member and the second locking member and the seat plate, which always provides a force to position the unlocking operation member at the lock position, or an elastic device is provided between the first locking member and the second locking member in response to the first locking member and the second locking member moving in opposite directions, and always provides a force for positioning the unlocking operation member at the locked position; 55. The mating base assembly of claim 54.

56. In response to the first locking member and the second locking member moving in opposite directions, the interlocking device is connected between the first locking member and the second locking member, and the movement direction of the central connection point of the interlocking device is perpendicular to the movement direction of the first locking member and the second locking member.

56. The mating base assembly of claim 55.

57. the interlocking device includes a first rod, a second rod, a third rod, and a fourth rod, the first rod, the second rod, the third rod, and the fourth rod being connected in pairs to form four connection points, one of the four connection points being a fixed connection point, the fixed connection point being connected to the first locking member and the second locking member by a rod fixed to the seat plate and connected to the central connection point opposite to the fixed connection point among the four connection points; 57. The mating base assembly of claim 56.

58. The at least one locking member further includes a third locking member and a fourth locking member, the third locking member and the fourth locking member being provided on the same other side of the seat plate and having configurations corresponding to the first locking member and the second locking member, respectively.

55. The mating base assembly of claim 54.

59. The first locking member and the second locking member are provided on opposite sides of the seat plate.

54. The mating base assembly of claim 53.

60. The linkage device includes a linkage member, the linkage member being a link.

60. The mating base assembly of claim 59.

61. The first locking member is fixedly connected to the second locking member, and an elastic device is provided between at least one of the first locking member and the second locking member and the seat plate, and has a tendency to position the unlocking operation member at the locked position in response to the first locking member and the second locking member moving in the same direction.

61. The mating base assembly of claim 60.

62. an elastic device is provided between at least one of the first locking member and the second locking member and the seat plate in response to the first locking member and the second locking member moving in opposite directions, and has a tendency to position the unlocking operation member at the locked position; 61. The mating base assembly of claim 60.

63. In response to the first locking member and the second locking member moving in the same direction, both ends of the interlocking member are fixedly connected to the first locking member and the second locking member, respectively; Both ends of the interlocking member are connected to the first locking member and the second locking member, respectively, in response to the first locking member and the second locking member moving in opposite directions.

62. The mating base assembly of claim 61.

64. The linkage device includes a linkage member, the linkage member being a traction member; The first locking member and the second locking member move in opposite directions.

60. The mating base assembly of claim 59.

65. The at least one locking member further includes a third locking member and a fourth locking member, the third locking member and the fourth locking member are both provided on opposite sides of the seat plate and have configurations corresponding to the first locking member and the second locking member, respectively.

60. The mating base assembly of claim 59.

66. The interlocking device includes another interlocking member that connects the third locking member and the fourth locking member.

66. The mating base assembly of claim 65.

67. When the first locking member and the second locking member move in opposite directions, the interlocking member and the other interlocking member are disposed to cross each other.

67. The mating base assembly of claim 66.

68. The interlocking member and the other interlocking member are connected at an intersection of the two.

68. The mating base assembly of claim 67.

69. an angle between the interlocking member and the other interlocking member when the unlocking member is in the locked position is larger than an angle between the interlocking member and the other interlocking member when the unlocking member is in the unlocked position; 70. The mating base assembly of claim 68.

70. When the first locking member and the second locking member move in opposite directions, an elastic device is provided between two locking members located on the same side among the first locking member, the second locking member, the third locking member, and the fourth locking member, and always provides a force to position the unlocking operation member at the locked position.

66. The mating base assembly of claim 65.

71. When the unlocking operation member is in the locked position, at least a portion of the unlocking operation member protrudes from above the seat plate, and a drive pin is fixedly provided on the unlocking operation member, The locking member is slidably connected to the unlocking member, and has an oblique hole at one end thereof close to the unlocking member. When the unlocking operation member is operated, the drive pin slides relative to the oblique hole in association with the movement of the unlocking operation member, thereby moving the locking member from the locked position to the unlocked position.

53. The mating base assembly of claim 52.

72. The engagement base assembly further includes a retention mechanism for retaining the unlocking operation member in the unlocked position. The engagement base assembly of any one of claims 52 to 71.

73. The holding mechanism includes a touch button, a buckle portion, and a reset member. The touch button is provided in the sheet plate, moves vertically relative to the sheet plate, and at least a portion of the touch button protrudes from above the sheet plate; The buckle portion is movably provided below the touch button, The reset member is disposed between the touch button and a lower case of the seat plate, and constantly provides a force for protruding the touch button upward toward the seat plate; When the object is placed on the seat plate and the touch button is pressed to operate the unlocking operation member, a retaining hook of the locking member engages the buckle portion to retain the unlocking operation member in the unlocked position.

73. The mating base assembly of claim 72.

74. The holding mechanism further includes an elastic member provided between the touch button and the buckle portion, and the holding hook is engaged with the buckle portion in cooperation with the movement of the buckle portion relative to the touch button.

74. The mating base assembly of claim 73.

75. A support bracket for supporting a seat plate, comprising: The support bracket is provided on the longitudinal side of the seat plate, and the support bracket includes a longitudinal rod connected in a triangular structure, a connecting rod, and a shock absorbing rod; The vertical rod is provided below the seat plate and fixedly connected to the seat plate, A first end of the connecting rod is fixedly connected to a first end of the longitudinal rod, and a second end of the connecting rod is fixedly connected to a first end of the shock absorbing rod; a second end of the shock absorbing rod is connected to a second end of the vertical rod, and the shock absorbing rod has elasticity to provide shock absorbing support to the seat plate; A support bracket characterized by:

76. Each of the support brackets further includes a first connecting part and a second connecting part, one ends of the first connecting part and the second connecting part are pivotally connected to the second end of the connecting rod, and the other ends of the first connecting part and the second connecting part and the first end of the connecting rod are pivotally connected to different foldable positions of the frame relative to each other.

76. The support bracket of claim 75.

77. The two support brackets are provided on both sides of the seat plate in the lateral direction, and a lateral rod is connected between the longitudinal rods of the two support brackets; and / or A cross rod is connected between the connecting rods of the two support brackets.

76. The support bracket of claim 75.

78. the longitudinal rod includes a position limiting finger provided at a first end of the longitudinal rod proximal to the connecting rod and used to limit an angle at which the longitudinal rod can pivot downward relative to the connecting rod; 76. The support bracket of claim 75.

79. the longitudinal rod includes a position limiting bump provided at a first end of the longitudinal rod, the position limiting bump being used to limit the longitudinal rod from pivoting upward relative to the connecting rod; 76. The support bracket of claim 75.

80. The support bracket further includes a position limiting member, a first end of the position limiting member slidably connected to the longitudinal rod, and a second end of the position limiting member pivotally connected to a second end of the connecting rod.

76. The support bracket of claim 75.

81. 1. A wheeled mobility device comprising a frame, an engaging base assembly, and a carrier, the engagement base assembly is attached to the frame; The carrier may be secured to a seat plate via the engagement base assembly; the engagement base assembly is located at a bottom of the carrier, the engagement base assembly having at least a plurality of engagement point locations; A wheeled transportation device.

82. the positions of the engagement points are symmetrically disposed on the engagement base assembly along a pair of longitudinal centerlines of the engagement base assembly; 82. The wheeled transportation device of claim 81.

83. The positions of the plurality of engagement points are four engagement points, which are provided centrally symmetrically on the engagement base assembly.

83. The wheeled transportation device of claim 82.

84. The carrier includes a case and a bracket device; The case has a bottom and a peripheral wall connected to the bottom, The bracket device includes a third bracket and a fastening assembly; the third bracket is located on one side of the bottom of the case and includes an engagement member that cooperates with a corresponding engagement structure of the moving device to define the location of the engagement point; the fixing assembly includes at least two guide members connected to the third bracket and disposed in a plane bounded by the engagement member; 82. The wheeled transportation device of claim 81.

85. The carrier is a long-sized carrier, and the positions of the plurality of engagement points are located between the at least two guide members.

85. The wheeled transportation device of claim 84.

86. the third bracket further includes a structural reinforcement member; the structural reinforcement member is disposed between the fastening assembly, and the locations of the engagement points are located between the guide member and the structural reinforcement member.

86. The wheeled transportation device of claim 85.

87. The carrier is a short-sized carrier, and the positions of the engagement points are located outside the at least two guide members.

85. The wheeled transportation device of claim 84.

88. the engagement base assembly includes a locking member for locking the carrier to the seat plate, the locking member having a locking portion at one end thereof, and an opening at a position of the seat plate corresponding to the locking portion, whereby the locking portion can extend from the opening of the seat plate to form the position of the engagement point; 82. The wheeled transportation device of claim 81.

89. The seat plate has an upper case structure with a raised front side, and a recess is provided at a location of the raised upper case structure where the lock portion is located, and an opening of the seat plate is provided in the recess.

89. The wheeled transportation device of claim 88.

90. a slope is provided on the raised upper case structure of the seat plate, the slope is located above the recess and on the side opposite to the opening of the recess, and is used to guide the locking of the carrier and the engagement base assembly; 90. The wheeled transportation device of claim 89.

91. the seat plate has a first extension portion and / or a second extension portion, The first extension portion extends from one end of the seat plate near the frame toward the rear wheel, and the second extension portion extends from one end of the seat plate near the frame toward the front wheel.

82. The wheeled transportation device of claim 81.

92. The engagement base assembly includes a support structure; the support structure supports the engagement base assembly and is pivotally connected to a frame, the engagement base assembly being capable of pivoting with folding of the frame via the support structure; 82. The wheeled transportation device of claim 81.

93. The frame includes a front support bar connected to a front wheel, a rear support bar connected to a rear wheel, and an upper support bar connected to a handrail, one end of the front support bar, one end of the rear support bar, and one end of the upper support bar are pivotally connected to each other at a pivot portion, When the frame is folded, the front support bar, the rear support bar and the upper support bar are brought close to each other, and the support structure causes the end of the engagement base assembly close to the rear wheel to pivot to the pivot portion.

93. The wheeled transportation device of claim 92.

94. The support structure includes a first coupling, a second coupling, and a linking member, one end of the first coupling is pivotally connected to the front support bar at a first pivot point; the second coupling is pivotally connected to the other end of the first coupling at a second pivot point and pivotally connected to the rear support bar at a third pivot point; one end of the linkage member is pivotally connected to the upper support bar at a fourth pivot point, and the other end of the linkage member is pivotally connected to the second coupling at a fifth pivot point, thereby pivoting the second coupling when the frame is folded, the fifth pivot point being between the second pivot point and the third pivot point; 94. A wheeled transportation device as described in claim 93.

95. When the frame is unfolded, the first coupling and the second coupling are horizontally disposed, and the first pivot point, the second pivot point, the third pivot point, and the fifth pivot point are substantially aligned.

95. The wheeled transportation device of claim 94.

96. the engagement base assembly is attached to the second coupling; 95. The wheeled transportation device of claim 94.

97. the second coupling includes a seat plate support member and an auxiliary support member, the seat plate support member is a U-shaped structure and is used to support and secure the engagement base assembly; the auxiliary support member is provided outside the sheet plate support member, is connected to the sheet plate support member, and is capable of moving the sheet plate support member in synchronization with the auxiliary support member; The other end of the first coupling is inserted between the seat plate support member and the auxiliary support member, and the other end of the interlocking member is inserted between the seat plate support member and the auxiliary support member.

97. A wheeled transportation device as claimed in claim 94 or 96.

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