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 transportation device to which the carrier is attached, and more particularly to animal the carrier, a wheeled transport device to which the carrier is attached, and an engagement base assembly to which the carrier is attached to the wheeled transport device. [Background technology]

[0002] animal If the user needs to travel with the device, they can use a handheld carrier. animal It can be carried and moved. Summary of the Invention [Problem to be solved by the invention]

[0003] To move the handheld carrier easily and with less effort, the carrier can be attached to a moving device so as to move together with the moving device. [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 arranged 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 being located on one side of the bottom of the mounting portion and used to fix the carrier to a moving device, and the fixing assembly connecting the mounting portion and the third bracket. A lower surface of the bottom portion forms the 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. The present disclosure provides a carrier including a mounting portion and a bracket device, wherein the mounting portion includes a bottom portion having a mounting space formed in the bottom portion, the bracket device includes a first bracket, a second bracket, and a third bracket, the first bracket is coupled to the mounting portion and disposed 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 the bottom portion of the mounting portion to the other side of the periphery of the mounting portion, 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 third bracket has an annular structural member. In one embodiment, the bracket device further includes a fixing assembly that connects the mounting portion and the third bracket, the lower surface of the bottom portion forming the bottom surface of the mounting portion, and the third bracket being spaced apart 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 horizontal portion, the two vertical portions being substantially vertically connected to the first bracket, and the horizontal 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 connected to the third bracket, located at a position corresponding to the first connecting bracket, and used to guide the 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 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 locked to the locking member.

[0013] In one embodiment, the fixing 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 connected to the third bracket and at least a portion of the bracket connecting member being located within the through groove, and the bracket connecting member being at least a portion of the bracket connecting member being located within the second connecting bracket and abutting 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 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, the case has a recess in the bottom thereof, 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 the structural reinforcement member has both ends connected 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 that extends along the lateral axis of the case, is connected to the engaging member, and is provided on at least one side of the engaging member.

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

[0021] In one embodiment, the third bracket includes two other structural reinforcing members, each of which is provided on either side of the engaging member.

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

[0023] In one embodiment, a box belt having a T-shaped structure is provided at the bottom of the case, the box belt having a vertical segment and a horizontal segment, the horizontal segment being connected to a first end of the box belt and a second end of the box belt. No. 2 and one end of the vertical segment is connected to the horizontal segment, and the other end is a free end and constitutes the third end of the box belt.

[0024] In one embodiment, the case is further provided with a collision prevention device, which is provided on at least one side of the case and located 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 stacked 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 with a mounting space formed in the bottom portion, a lower surface of the bottom portion constituting 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 being located on one side of the bottom portion of the mounting portion and used to fix the carrier to a moving device, and the fixing assembly being connected between the mounting portion and the third bracket, such that the third bracket is spaced apart from the bottom surface of the mounting portion via the fixing assembly.

[0028] In one embodiment, the mounting portion is a case, the case including a main body and a bottom support member, the main 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 unfolded state to a stowed state using at least one connection structure.

[0034] In one embodiment, the first support member is a lateral support member that forms at least a portion of two side surfaces of the body, and the second support member is an upper support member that forms at least a portion 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 stowed state by the connecting 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 removably 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 removably 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, switching the side support members 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 together 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 together 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.

[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, an openable window fabric is provided on either side of the main body.

[0043] In one embodiment, the window covering is a flexible fabric, and a bracket is provided on the 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 has a bottom edge provided with a downwardly extending extension, which is 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 being mounted on the case of the carrier or covering 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 mounted 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 mounted around an opening of the case, and the unlocking operation member being mounted on the ceiling frame or sleeved on 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 that supports the case and includes a first bracket that surrounds the 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 which moves relative to the ceiling frame to engage with or disengage from the ceiling locking portion, thereby locking or unlocking the ceiling frame to or from the case.

[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 locking portion.

[0050] In one embodiment, the ceiling locking device further includes an unlocking operation member that is operably connected to the locking member, and when the unlocking operation member is located at the locked position, the locking member engages with the ceiling locking portion, and when the unlocking operation member is operated to the unlocked position, the locking member disengages from the ceiling locking portion.

[0051] In one embodiment, the locking member is pivotally connected to the ceiling frame about a pivot point and pivotally connected 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 locked position and the unlocked 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 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 place the unlocking operation member in or return it to the locked position.

[0054] In one embodiment, the unlocking operation member is provided on the ceiling locking unit and is movable relative to the ceiling locking unit between the locked position and the unlocked position. 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 unit 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 member. An engagement hole is formed in one of the first sheet-like member and the second sheet-like member, and an engagement protrusion that mates with the engagement hole is provided on the other of the first sheet-like member and the second sheet-like member. When the unlocking member is in the locked position, the engagement hole engages with the engagement protrusion, and when the unlocking 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 locking device further includes an elastic reset member connected between the carrier and one of the unlocking operation member and the second sheet-like member, and always provides a force to place the unlocking operation member in or return it to the locked position.

[0057] In one embodiment, the ceiling locking portion 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 for the at least one pivot segment to be at different angles 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 joints, and both ends of the second pivot segment are pivotally connected to the other ends of the two lock segments via second pivot joints, and two 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 have 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 connection portion and the second pivotal connection portion, which constantly pushes the first pivotal connection portion and the second pivotal connection portion in the direction of deployment of the roof, 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 the 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 seat plate and a locking mechanism. The seat plate is used to place an object thereon, and the locking mechanism is attached to the seat 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 is slidable relative to the seat plate between a locked position and an unlocked position, and the at least one locking member is slidably mounted 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 conjunction 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, which are connected by an interlocking device, and which move synchronously in the same direction as or opposite to the unlocking operation member 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, and always provides a force to position the unlocking operation member at the locked position.

[0069] In one embodiment, the interlocking device is connected between the first locking member and the second locking member so that the first locking member and the second locking member move in opposite directions, 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.

[0070] In one embodiment, the interlocking device includes a first rod, a second rod, a third rod, and a fourth rod, wherein 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, and the fixed connection point 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 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 device 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, which 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.

[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 device includes a linkage member, the linkage member being a traction member, the first locking member and the second locking member moving 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 another interlocking member that connects 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 arranged to cross the other interlocking member.

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

[0083] In one embodiment, the angle between the interlocking member and the other interlocking member when the unlocking member is in the locked position is larger than the 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 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 thereof 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 that retains the unlocking operation member in the unlocked position.

[0087] In one embodiment, the holding mechanism includes a touch button and a reset member, the touch button is disposed within the seat plate and moves vertically relative to the seat plate, and at least a portion of the touch button can protrude from above the seat plate, a buckle portion is disposed movably below the touch button, and the reset member is disposed between the touch button and a lower case of the seat plate and constantly provides a force to protrude the touch button toward the seat plate. When the object is placed on the seat 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 unlocked position.

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

[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 an air-actuated 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 located on a first end of the longitudinal rod proximal to the connecting rod, the position limiting finger being 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, the position limiting bump being used to limit the longitudinal rod from pivoting upward relative to the connecting rod. In one embodiment, the position limiting bump is provided at the first end of the longitudinal rod 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 transportation device, the wheeled transportation device including a frame, an engaging base assembly according to the above embodiment, and a carrier, the engaging 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 transportation 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 the bottom of the carrier, and having at least a plurality of engagement points on the engagement base assembly.

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

[0100] In one embodiment, the plurality of engagement point locations are four engagement point locations, which are provided 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 including a third bracket and a fixing assembly, the third bracket being located on one side of the bottom of the case and including an engagement member cooperating with a corresponding engagement structure of the moving device to form the position of the engagement point, and the fixing assembly being connected to the third bracket and including 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 positions of the plurality of 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 positions of the plurality of engagement points being located between the guide member and the structural reinforcement member.

[0104] In one embodiment, the carrier is a short-sized carrier, and the positions of the plurality of 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 engagement point.

[0106] In one embodiment, the seat plate has a raised upper case structure on the front side, and a recess is provided at the location of the locking portion of the raised upper case structure, and the opening of 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 and 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, and the engagement base assembly can pivot via the support structure as the frame folds.

[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 the 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 to each other, and the support structure allows the end of the engagement base assembly closest to the rear wheel to pivot to the pivot portion.

[0112] In one embodiment, the support structure includes a first coupling, a second coupling, and a linkage 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 linkage member pivotally connected to the upper support bar at a fourth pivot point, and the other end of the linkage 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 having a U-shaped structure and 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 move 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, and the seat plate support member has 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 aligned 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 present disclosure, are incorporated herein, illustrate examples of the disclosure, and together with the description, constitute a part of this specification, used to explain the principles of the disclosure. [Brief explanation of the drawings]

[0120] [Figure 1A]1A to 1D schematically illustrate a wheeled transportation device according to an embodiment of the first aspect of the present disclosure, with the carrier case removed in FIGS. 1C and 1D to show the connection between the carrier's bracket device and the locking mechanism. [Figure 1B] 1A to 1D schematically illustrate a wheeled transportation device according to an embodiment of the first aspect of the present disclosure, with the carrier case removed in FIGS. 1C and 1D to show the connection between the carrier's bracket device and the locking mechanism. [Figure 1C] 1A to 1D schematically illustrate a wheeled transportation device according to an embodiment of the first aspect of the present disclosure, with the carrier case removed in FIGS. 1C and 1D to show the connection between the carrier's bracket device and the locking mechanism. [Figure 1D] 1A to 1D schematically illustrate a wheeled transportation device according to an embodiment of the first aspect of the present disclosure, with the carrier case removed in FIGS. 1C and 1D to show the connection between the carrier's bracket device and the locking mechanism. [Figure 2] 1 illustrates a frame according to an embodiment of the first aspect of the present disclosure. [Figure 3A] 1 illustrates schematically an engagement base assembly according to an embodiment of the first aspect of the present disclosure. [Figure 3B] 1 illustrates schematically an engagement base assembly according to an embodiment of the first aspect of the present disclosure. [Figure 3C] 1 illustrates schematically 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] 10A and 10B illustrate schematically a support structure according to another embodiment of the first aspect of the present disclosure; [Figure 5B] 10A and 10B illustrate schematically 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 a schematic representation of a frame with a support structure attached thereto according to a first aspect of the present disclosure; [Figure 8A] 1A and 1B illustrate a schematic view of a frame with an attached engagement base assembly, with the frame in the process of folding, according to one embodiment of the first aspect of the present disclosure; [Figure 8B] 1A and 1B illustrate a schematic view of a frame with an attached engagement base assembly, with the frame in the process of folding, according to one embodiment of the first aspect of the present disclosure; [Figure 9A] 10A and 10B illustrate a schematic view of a frame with an attached engagement base assembly with the frame in a fully collapsed state, according to one embodiment of the first aspect of the present disclosure; [Figure 9B] 10A and 10B illustrate a schematic view of a frame with an attached engagement base assembly with the frame in a fully collapsed state, according to one embodiment of the first aspect of the present disclosure; [Figure 10A] 10A and 10B are schematic views of an engagement base assembly according to an embodiment of the first aspect of the present disclosure, with the upper case of the seat plate removed in order to show the locking mechanism. [Figure 10B] 10A and 10B are schematic views of an engagement base assembly according to an embodiment of the first aspect of the present disclosure, with the upper case of the seat plate removed in order to show the locking mechanism. [Figure 11A] 1 shows a schematic diagram of a locking mechanism according to an embodiment of the first aspect of the present disclosure; [Figure 11B] 1 shows a schematic diagram of a locking mechanism according to an embodiment of the first aspect of the present disclosure; [Figure 12] 1 is a diagram showing a schematic view 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 illustration 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 illustration of a locking mechanism and a carrier disposed thereon according to an embodiment of the first aspect of the present disclosure; [Figure 14A] 14A and 14B are schematic views of an engaging base assembly according to another embodiment of the first aspect of the present disclosure, with the upper case of the seat plate removed in order to illustrate the locking mechanism; [Figure 14B] 14A and 14B are schematic views of an engaging base assembly according to another embodiment of the first aspect of the present disclosure, with the upper case of the seat plate removed in order to illustrate the locking mechanism; [Figure 15] 1 is a schematic illustration 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-section of the retention mechanism is shown schematically along line FF in FIG. 15, with a corresponding cross-section of the seat plate shown to illustrate the structural relationship between the retention mechanism and the seat plate. [Figure 16B] 1 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] 1 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 transportation device according to an embodiment of the present disclosure. [Figure 17B] 1 illustrates a schematic diagram of a wheeled transportation device according to an embodiment of the present disclosure. [Figure 17C] 1 illustrates a schematic diagram of a wheeled transportation device according to an embodiment of the present disclosure. [Figure 17D] 1 illustrates a schematic diagram of a wheeled transportation device according to an embodiment of the present disclosure. [Figure 18A]17B illustrates a schematic representation of an engagement base assembly for the wheeled mobility device shown in FIG. 17A. [Figure 18B] 17B illustrates a schematic representation of an engagement base assembly for the wheeled mobility device shown in FIG. 17A. [Figure 18C] 17B illustrates a schematic representation of an engagement base assembly for the wheeled mobility device shown in FIG. 17A. [Figure 18D] 17B illustrates a schematic representation of an engagement base assembly for the wheeled mobility device shown in FIG. 17A. [Figure 18E] 18D in various positions. [Figure 18F] 18D in various positions. [Figure 19A] 1 shows a perspective schematic view of a wheeled transportation device according to a second embodiment of the present disclosure. [Figure 19B] 1 shows a perspective schematic view of a frame according to the present disclosure. [Figure 19C] FIG. 19C shows a perspective schematic view of the frame shown in FIG. 19B at another angle. [Figure 20] 1 shows a perspective schematic view of an engaging base assembly according to the present disclosure. [Figure 21] FIG. 21 is a perspective schematic view of the engagement base assembly shown in FIG. 20 after the seat plate has been removed. [Figure 22] 19C is a perspective schematic view of the frame shown in FIG. 19B and the seat plate support member attached to the frame. FIG. [Figure 23] 23 is a perspective schematic view of the frame and the seat plate support member shown in FIG. 22 at another angle. FIG. [Figure 24] 1 shows a perspective schematic view of a frame of the present disclosure and an engaging base assembly attached to the frame. [Figure 25] 25 shows a perspective schematic 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 transport 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. [Figure 30] FIG. 29 is a side view of the frame and engagement base assembly shown in FIG. 28 after it has been fully folded. [Figure 31] FIG. 31 shows a front view of the frame and engagement base assembly shown in FIG. 30. [Figure 32A] 10A to 10C are schematic external views of a carrier in a first embodiment of the third aspect of the present disclosure at different angles. [Figure 32B] 10A to 10C are schematic external views of a carrier in a first embodiment of the third aspect of the present disclosure at different angles. [Figure 32C] FIG. 10 is an exploded schematic view of partial elements of a carrier in a first embodiment of the third aspect of the present disclosure. [Figure 32D] FIG. 10 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. 10 is a partial configuration diagram of a carrier attached to a base in a first embodiment of the third aspect of the present disclosure. [Figure 32F] FIG. 10 is a cross-sectional schematic view of a carrier in a first embodiment of the third aspect of the present disclosure. [Figure 32G] FIG. 10 is a top view of a carrier according to a first embodiment of the third aspect of the present disclosure. [Figure 32H] FIG. 10 is a partial structural cross-sectional view of a carrier in a first embodiment of a third aspect of the present disclosure. [Figure 32I] FIG. 10 is a structural cross-sectional view of another part of the carrier in the first embodiment of the third aspect of the present disclosure. [Figure 32J] 10A-10C are schematic diagrams of restraint belt arrangements at different angles of the carrier of the first embodiment of the third aspect of the present disclosure. [Figure 32K]10A-10C are schematic diagrams of restraint belt arrangements at different angles of the carrier of the first embodiment of the third aspect of the present disclosure. [Figure 32L] FIG. 10 is a schematic diagram of a carrier according to a first embodiment of the third aspect of the present disclosure with the handle in a closed state. [Figure 33A] 10A to 10C are schematic external views of a carrier according to a second embodiment of the third aspect of the present disclosure at different angles. [Figure 33B] 10A to 10C are schematic external views of a carrier according to a second embodiment of the third aspect of the present disclosure at different angles. [Figure 33C] FIG. 10 is a cross-sectional schematic view of a carrier according to a second embodiment of the third aspect of the present disclosure. [Figure 33D] FIG. 10 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. 10 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] 10A to 10C are schematic external views of a carrier at different angles according to a third embodiment of the present disclosure; [Figure 34B] 10A to 10C are schematic external views of a carrier at different angles according to a third embodiment of the present disclosure; [Figure 34C] 10A to 10C are schematic external views of a carrier at different angles according to a third embodiment of the present disclosure; [Figure 35A] 10A to 10C are schematic external views of a carrier according to a fourth embodiment of the present disclosure in different states. [Figure 35B] 10A to 10C are schematic external views of a carrier according to a fourth embodiment of the present disclosure in different states. [Figure 35C] FIG. 10 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. 10 is a schematic view showing the appearance of a carrier in a fifth embodiment of the third aspect of the present disclosure. [Figure 36B] FIG. 10 is a partial structural view of a carrier after removing the ceiling and the sheet in a fifth embodiment of the third aspect of the present disclosure. [Figure 37A]FIG. 10 is a schematic view showing the appearance of a carrier according to a sixth embodiment of the third aspect of the present disclosure. [Figure 37B] FIG. 10 is a partial structural view of a carrier after removing the ceiling and the sheet in a sixth embodiment of the third aspect of the present disclosure. [Figure 38A] FIG. 10 is a schematic view showing the appearance of a carrier according to a seventh embodiment of the third aspect of the present disclosure. [Figure 39] FIG. 10 is a schematic front view of a carrier according to an embodiment of the fourth aspect of the present disclosure. [Figure 40] A schematic diagram of the structure of the carrier shown in Figure 39 after removing the ceiling and sheet is shown. [Figure 41] FIG. 41 is a configuration diagram of the carrier shown in FIG. 40 at another angle. [Figure 42] 42 is a structural view of another state of the carrier shown in FIG. 41 with the ceiling assembly separated from the case. [Figure 43] FIG. 42 is a structural view of a carrier for removing the ceiling assembly shown in FIG. 41. [Figure 44] FIG. 10 is a structural diagram of a ceiling frame according to an embodiment of the fourth aspect of the present disclosure and a ceiling locking device disposed thereon. [Figure 45] 45 is a schematic diagram showing the configuration of a ceiling locking device at part A in FIG. 44. FIG. [Figure 46] FIG. 46 is a configuration diagram of another state of the ceiling locking device shown in FIG. 45. [Figure 47] FIG. 46 is a schematic diagram showing the configuration when the ceiling locking device shown in FIG. 45 cooperates with the ceiling locking section. [Figure 48] A schematic diagram of the ceiling locking device and the ceiling locking unit shown in Figure 47 when unlocked is shown. [Figure 49] FIG. 10 is a structural diagram of a ceiling frame in an unfolded state according to an embodiment of the fourth aspect of the present disclosure. [Figure 50] FIG. 50 is a structural diagram of the ceiling frame shown in FIG. 49 in a folded state. [Figure 51A] FIG. 4 is a schematic diagram showing the configuration of a first pivotal connection portion of the ceiling frame. [Figure 51B] 10 is a schematic diagram showing the configuration of a first pivotal connection portion of the ceiling frame. FIG. [Figure 51C] 10 is a schematic diagram showing the configuration of a first pivotal connection portion of the ceiling frame. FIG. [Figure 52] FIG. 1 is a structural schematic diagram of a case with a ceiling frame attached in an unfolded state. [Figure 53] FIG. 10 is a structural schematic diagram of the case with the ceiling frame attached in the folded state. [Figure 54A] FIG. 10 is a perspective schematic view of the carrier with the roof unfolded. [Figure 54B] FIG. 10 is a perspective schematic view of the carrier with the roof folded down. [Figure 55] 10 is a perspective schematic view of a carrier provided with a handle and a decorative bag according to one embodiment of the fourth aspect of the present disclosure. FIG. [Figure 56] FIG. 10 is a perspective schematic view of a carrier according to another embodiment of the fourth aspect of the present disclosure. [Figure 57A] FIG. 10 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 shows an 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. 10 is a perspective view of a ceiling lock according to another embodiment of the fourth aspect of the present disclosure. [Figure 58B] FIG. 10 is a perspective view of a ceiling lock according to another embodiment of the fourth aspect of the present disclosure. [Figure 59A] 57 is a cross-sectional perspective view of the ceiling locking device taken along line FF of 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 in an unlocked state. [Figure 59C] FIG. 2 is a cross-sectional perspective view of the ceiling locking device in a removed state. [Figure 60] FIG. 10 is a structural 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 structural diagram of the ceiling frame shown in FIG. 60 in a folded state. [Figure 62A] 1A and 1B respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 62B] 1A and 1B respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 62C] 1A and 1B respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 62D] 1A and 1B respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 62E] 1A and 1B respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 62F] 1A and 1B respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 63A] 1A and 1B respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 63B] 1A and 1B respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 63C] 1A and 1B respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 63D] 1A and 1B respectively show structural schematic diagrams of carriers of different sizes according to the present disclosure. [Figure 64A] FIG. 10 is a schematic diagram of a carrier according to yet another embodiment of the fourth aspect of the present disclosure. [Figure 64B] FIG. 10 is a schematic diagram of a carrier according to yet another embodiment of the fourth aspect of the present disclosure. [Figure 64C] FIG. 10 is a schematic diagram of a carrier according to yet another embodiment of the fourth aspect of the present disclosure. [Figure 64D] FIG. 10 is a schematic diagram of a carrier according to yet another embodiment of the fourth aspect of the present disclosure. [Figure 65] FIG. 10 is a perspective schematic view of a carrier according to yet another embodiment of the fourth aspect of the present disclosure. [Figure 66] FIG. 10 is a perspective schematic view of a carrier according to yet another embodiment of the fourth aspect of the present disclosure. [Figure 67A] 10 is a schematic diagram of a ceiling and seat fabric connected thereto according to one embodiment of the fourth aspect of the present disclosure. FIG. [Figure 67B] 10 is a schematic diagram of a ceiling and seat fabric connected thereto according to one embodiment of the fourth aspect of the present disclosure. FIG. [Figure 68A] FIG. 10 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. 10 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. 10 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. 10 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] FIG. 10 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. [Figure 69A] FIG. 10 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. 10 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. 10 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. 10 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] 10 shows a carrier and its bracket device according to an embodiment of the fourth aspect of the present disclosure. [Figure 70B] 10 shows a carrier and its bracket device according to an embodiment of the fourth aspect of the present disclosure. [Figure 70C] 10 shows a carrier and its bracket device according to an embodiment of the fourth aspect of the present disclosure. [Figure 70D] 10 shows a carrier and its bracket device according to an embodiment of the fourth aspect of the present disclosure. [Figure 70E] 10 shows a carrier and its bracket device according to an embodiment of the fourth aspect of the present disclosure. [Figure 70F] 10 shows a carrier and its bracket device according to an embodiment of the fourth aspect of the present disclosure. [Figure 70G] 10 shows a carrier and its bracket device according to an embodiment of the fourth aspect of the present disclosure. [Figure 71A] 10 shows a carrier according to an embodiment of the fourth aspect of the present disclosure. [Figure 71B] 10 shows a carrier according to an embodiment of the fourth aspect of the present disclosure. [Figure 71C] 10 shows a carrier according to an embodiment of the fourth aspect of the present disclosure. [Figure 71D] 10 shows a carrier according to an embodiment of the fourth aspect of the present disclosure. [Figure 72] FIG. 10 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. [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] FIG. 10 shows a perspective view of a main body of a carrier according to yet another embodiment of the fifth aspect of the present disclosure. [Figure 80] 80 shows a perspective view of the bottom support member of the carrier shown in FIG. 79. [Figure 80A] FIG. 10 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. 10 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 80C]FIG. 10 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 80D] FIG. 10 shows a perspective view of a main body of a carrier according to yet another embodiment of the fifth aspect of the present disclosure. [Figure 80E] FIG. 10 shows a perspective view of a main body of a carrier according to yet another embodiment of the fifth aspect of the present disclosure. [Figure 80F] FIG. 10 shows a perspective view of a main body of a carrier according to yet another embodiment of the fifth aspect of the present disclosure. [Figure 81] 10 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. 1 is a perspective view of a carrier secured to a vehicle via a securing 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. 10 is a perspective view of the attachment of the carrier to the wheeled transport device. [Figure 87A] 10A-10C are schematic external views of a carrier at different angles according to an embodiment of the sixth aspect of the present disclosure. [Figure 87B] 10A-10C are schematic external views of a carrier at different angles according to an embodiment of the sixth aspect of the present disclosure. [Figure 87C] 10A-10C are schematic external views of a carrier at different angles according to an embodiment of the sixth aspect of the present disclosure. [Figure 88A] FIG. 1 is a perspective view of a carrier according to one embodiment of the present disclosure. [Figure 88B] FIG. 1 is a perspective view of a carrier according to one embodiment of the present disclosure. [Figure 88C] FIG. 1 is a perspective view of a carrier according to one embodiment of the present disclosure. [Figure 89A]FIG. 1 is a perspective view of a carrier according to one embodiment of the present disclosure. [Figure 89B] FIG. 1 is a perspective view of a carrier according to one embodiment of the present disclosure. [Figure 90A] FIG. 10 is a perspective view of a carrier according to another embodiment of the present disclosure. [Figure 90B] FIG. 10 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. [Figure 91C] FIG. 90C is a schematic diagram of the cushion shown in FIG. 90B. DETAILED DESCRIPTION OF THE INVENTION

[0121]

[0023] Exemplary embodiments of the present disclosure will now 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; on the contrary, the present disclosure will cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure.

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

[0123] animal If the user needs to travel with the device, they can use a handheld carrier. animal In order to move the hand-held carrier easily and with less effort, the carrier can be attached to a moving device so that the carrier moves together with the moving 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 one embodiment of the first aspect of the present disclosure is shown schematically, with Fig. 1A being a perspective view of the wheeled transportation device 11 of this embodiment, and Fig. 1B being 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 resembles a cart, and its structure will be described in detail below. The engagement base assembly 120 is attached to the frame 110 and can lock and unlock a locking object (also referred to as an "engagement object," hereinafter collectively referred to as "object") to stably position the object and thereby increase the safety of the object during transportation. In addition, by operating the engagement base assembly 120, a user can easily attach and detach an object to and from the frame 110.

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

[0128] As shown in FIG. 1B, the carrier 130 includes a handle 1330 for lifting the carrier 130; animal and a case 1340 for carrying the carrier 130. When the carrier 130 is attached to the engagement base assembly 120, a longitudinal centerline C11 of the carrier 130 is in substantially the same vertical plane as a 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 on substantially the same vertical plane as the lateral centerline C14 of the engagement base assembly 120. In this case, the carrier 130 is positioned approximately centered relative to the engagement base assembly 120. Note that the "lateral centerline" refers to a centerline parallel to the connecting line between both ends of the handle 1330, and the direction indicated by "D12" in FIG. 1B (i.e., the lateral direction D12) is a direction extending laterally parallel to the lateral centerlines C13 and C14. In one example, the connecting lines between 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 a user can maintain balance when lifting the carrier 130 by hand via the handle 1330.

[0130] Referring to Figures 1C and 1D, Figure 1C is a perspective view of the wheeled transport device 11 after the case of the carrier 130 has been removed, and Figure 1D is a plan perspective view of the wheeled transport 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 for clarity in describing the bracket device 1310), and forms the side and bottom frames of the bracket device 1310. That is, referring to FIGS. 1B and 1C, it can be seen that the second bracket 1312 extends from one side of the periphery of the case 1340 (i.e., the mounting portion) through the bottom surface of the case 1340 to the other side of the periphery of the case 1340.

[0132] 1C and 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 has an annular structure (e.g., a substantially rectangular annular structure). The two first structural reinforcement members 13132 are each connected to the engagement member 13132 (e.g., each end is connected to two opposing long sides of the annular structural member of the engagement member 13131), 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 each provided at the lower end of the second bracket 1312 (e.g., below the U-shaped structure of the second bracket 1312), fixedly connected to the second bracket 1312, and provide support and fixation. For example, 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 engaging member 13131 to enhance the impact resistance of the overall 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, which helps lock the carrier 130 in a substantially central position and provides a positioning guide action to enhance stability when the carrier 130 is attached to the wheeled transportation device 11. At least one No. 2 The second structural reinforcement member 13133 further enhances the impact resistance of the overall structure of the third bracket 1313. In one example, as shown in Figures 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 be further 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 one embodiment of the present disclosure, as shown in FIG. 1D (where the location of one engagement point is shown in a locally enlarged view), the carrier 130 has a plurality of engagement point locations, for example, four engagement point locations, when attached to the engaging 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 engaging base assembly 120) and about the lateral centerline C13 of the carrier 130 (and the lateral centerline C14 of the engaging base assembly 120). For example, the four engagement point locations are provided centrosymmetrically on the engaging base assembly 120. In one embodiment, the plurality of engagement point locations are located between two first structural reinforcement members 13132 (as shown in FIG. 1C, the first structural reinforcement member of FIG. 1D is interrupted by the second bracket 1312), and further between the first structural reinforcement member 13132 and the second structural reinforcement member 13133. For example, in an embodiment where two second structural reinforcement members 13133 are provided, the two second structural reinforcement members 13133 may be provided between structural reinforcement members 13132; multiple The location of the engagement point may be located between two first structural reinforcement members 13132 and their adjacent second structural reinforcement members 13133.

[0135] As a result, in the embodiment of the present disclosure, by positioning the bottom center of the carrier 130 approximately symmetrically on the engagement base assembly 120, the carrier 130 can be stably attached to the engagement base assembly 120 and the frame 110, and the user can easily position the carrier 130 symmetrically on the frame 110 in accordance with the distribution of the positions of the above-mentioned multiple engagement points of the engagement base assembly 120, and optionally, can also easily position the carrier 130 in the center, thereby improving the overall stability of the wheeled transportation device 11, allowing the transportation device to maintain balance during travel and providing excellent impact resistance and safety. In another embodiment, depending on the needs of actual applications, the carrier 130 does not need to be positioned in the center on the engagement base assembly 120, and the present disclosure does not limit the various engageable positions of the carrier 130 with respect 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 schematically.

[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 fixedly connected to one end of the two rod members of the rear support bar 1120. At least one front wheel 1150a is connected to the underside of the front support bar 1110 (i.e., the underside of the U-shaped structure), and the other ends of the two rods of the rear support bar 1120 are respectively connected to corresponding rear wheels 1150b. As shown in FIG. 2 , in this embodiment, two front wheels 1150a are pivotally mounted on the underside of the front support bar 1110 in a centrally symmetrical manner. As an example, the two front wheels 1150a are both universal wheels, and the two rear wheels 1150b are pivotally connected to two rods of the rear support bar 1120, respectively, and are pivotally movable in the fore-and-aft direction of the frame 110.

[0139] Although the above describes several embodiments of the present disclosure, the present disclosure is not limited to the structure and number of the above components. For example, in another embodiment, 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 can have only one front wheel 1150a. The front wheel 1150a can also 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 are shown schematic diagrams of an engaging base assembly 120 according to one embodiment of the present disclosure. Specifically, FIG. 3A is a perspective view of engaging base assembly 120, FIG. 3B is a side view of engaging 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 hidden 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 either side of the sheet plate 1210 in the lateral direction (only one support bracket 1241 is shown in FIG. 3A due to the obscuration of the sheet plate 1210). For example, the two support brackets 1241 are disposed symmetrically on either side 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). A first end 12412a of the connecting rod 12412 and a first end 12411a of the vertical rod 12411 are pivotally connected within a certain range as shown in FIG. 3C. A second end 12412b of the connecting rod 12412 and a first end 12413a of the shock absorbing rod 12413 are fixedly connected. A second end 12413b of the shock absorbing rod 12413 is fixedly connected to a second end 12411b of the vertical rod 12411, and is disposed, for example, at a middle-rear portion of the seat plate 1210 in the vertical direction D11. 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 when the frame is shaken.

[0146] In this embodiment, the upper end of the shock absorbing rod 12413 is located at the second end 12411b of the vertical rod 12411 (corresponding to the middle and rear part of the seat plate 1210), providing a larger vibration isolation stroke and achieving 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, at the center or the very end of the seat plate 1210. In yet another embodiment, the shock absorbing capacity of the support bracket 1241 can be adjusted by adjusting the length of the connecting rod 12412 within a predetermined 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. Furthermore, 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 be adjusted to achieve better vibration isolation effect.

[0147] 3B and 3C , the vertical rod 12411 further includes a position limiting finger 12411c provided at a first end 12411a of the vertical rod 12411 on a side closer to the connecting rod 12412 for restricting the angle of downward pivoting of the vertical rod 12411 relative to the connecting rod 12412. When traveling over a vibrating road surface, the shock absorbing rod 12413 deforms (for example, 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 will not continue to pivot downward (i.e., the angle between the vertical rod 12411 and the connecting rod 12412 will not become any smaller), preventing the vertical rod 12411 from being tilted at an excessively large angle relative to the horizontal plane, thereby preventing the seat plate 1210 and any objects mounted thereon from being tilted at an excessively large angle, further improving safety and running 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 original shape, and when the shock absorbing rod 12413 recovers its shape, a force is applied to the vertical rod 12411 to pivot it 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 between the vertical rod 12411 and the connecting rod 12412 to break. Furthermore, 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. 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 safety in use 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 schematically.

[0150] In one embodiment, the support structure 1240 further includes a horizontal rod or U-shaped first connecting rod 1242 connected between the vertical rods 12411 of the two support brackets 1241 to fixedly connect 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 respectively sleeved onto both ends of the first connecting rod 1242. 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 respectively connected to both ends of the two vertical rods 12411 or are integrally formed with the two vertical rods 12411 to form a rectangular frame structure.

[0151] 5A and 5B schematically illustrate 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 viewed from the inside.

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

[0153] 5B , a first end 12414′a of the position limiting member 12414′ is slidably connected to the vertical rod 12411′, and a second end 12414′b of the position limiting member 12414′ is connected to a second end 12412′b of the connecting rod 12412′. In one embodiment, a position limiting groove 12414′c extending a certain distance in the vertical direction is provided at the first end 12414′a of the position limiting member 12414′, and a pin 12411′e is provided at a middle position of the vertical rod 12411′. Cooperation between the position limiting groove 12414′c and the pin 12411′e allows the position limiting member 12414′ to slide in a direction substantially perpendicular (e.g., vertically or substantially vertically) to the vertical rod 12411′. Optionally, when there is no relative displacement between the position limiting member 12414' and the vertical rod 12411', 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 uppermost 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 vibrating road surface, the shock absorbing rod 12413' is deformed (e.g., shortened or bent) to provide a cushioning effect so that the vertical rod 12411' pivots downward relative to the connecting rod 12412'. At this time, the position limiting groove 12414'c of the position limiting member 12414' limits the sliding stroke of the pin 12411'e of the vertical rod 12411' (i.e., corresponding to the length of the position limiting groove 12414'c), thereby limiting 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 FIGS. 3A to 3C) from tilting downward relative to the connecting rod 12412' during the cushioning effect, and also allows the seat plate and frame (shown in FIG. 9A) in the folded state to be moved by the user lifting the seat plate.This prevents the vertical rod 12411' and the seat plate attached thereto from everting outward (i.e., the vertical rod 12411' pivoting upward relative to the connecting rod 12412') when the folding mechanism of the frame 110 (described later) is moved. In other words, the position limiting member 12414' can further limit the pivoting of the vertical rod 12411' relative to the position limiting fingers 12411'c and the position limiting bumps 12411'd, and can simultaneously fulfill the roles of both the position limiting fingers 12411'c and the position limiting bumps 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 fingers 12411'c and the position limiting bumps 12411'd.

[0154] 6A-6C, a frame 110 having an engagement base assembly 120 attached thereto is schematically shown 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] 6A-6C, the engagement base assembly 120 is pivotally connected and attached to the frame 110 via its support structure 1240, where a seat plate 1210 and a locking mechanism (the locking mechanism is obscured in the figure; its 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 surface on which an object (in this embodiment, a carrier) is placed. 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. The arrangement of the first connecting part 1244 and the second connecting part 1245 allows the engagement base assembly 120 to be folded together when the frame 110 is folded. The specific method of connecting the support structure 1240 and 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, a frame 110 having a support structure 1240 mounted thereon is shown schematically, according to one embodiment of the first aspect of the present disclosure.

[0157] 7 , one end of the first connecting piece 1244 and the second connecting piece 1245 is pivotally connected to the second end 12412b of the connecting rod 12412, and the other ends of the first connecting piece 1244 and the second connecting piece 1245 and the first end 12412a of the connecting rod 12412 are pivotally connected to different positions on the frame 110 that are pivotable relative to each other. Due to this connection between the first connecting piece 1244 and the second connecting piece 1245, the support structure 1240 is pivotally attached to the frame 110 so as to provide support to the engagement base assembly (for clarity, the structure of the engagement base assembly other than the support structure 1240 has been removed from the figure), and to be foldable 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 to 9B, a folding process of frame 110 having attached engaging base assembly 120 according to one embodiment of the first aspect of the present disclosure is schematically shown, where Figs. 8A and 8B show a perspective view and a side view of frame 110 and attached engaging base assembly 120 during folding, and Figs. 9A and 9B show a front view and a side view of frame 110 and 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 handrails 1140 of the frame 110 are pivotally connected to the upper support bar 1130 via pivot points 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 first pivot points A11 and can be folded relative to one another. Furthermore, 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 pivot when the frame 110 is folded.

[0161] 8B, the support structure 1240 is pivotally connected to the second pivot point A12 via a first connecting piece 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 piece 1245, and pivotally connected to the front support bar 1110 and the fifth pivot point A15 via a connecting rod 12412. The first connecting piece 1244 and the second connecting piece 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, and 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 collapses and retracts into the overall configuration of the frame 110 (the final collapsed state is shown in FIG. 9B).

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

[0164] 9A, the seat plate 1210 may include a carrying handle 1211. When the frame 110 and engagement 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 engagement 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 schematically, with the top case of the seat plate 1210 removed in FIG. 10A to more easily view the locking mechanism 1220 located within the seat plate 1210.

[0166] 10A and 10B, the locking mechanism 1220 locks an object (e.g., a sleeping box, other animal) positioned on the seat plate 1210. for 12. It can be seen that the locking mechanism is mounted in a seat plate 1210 for locking and unlocking the locking mechanism (carrier).

[0167] As shown in FIG. 10A , the locking mechanism 1220 includes at least one unlocking operation member 1221 and at least one locking member 1222. The unlocking operation member 1221 is provided within the seat plate 1210 and is movable relative to the seat plate 1210 between a locked position and an unlocked position. 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 portion of the unlocking operation member 1221 protrudes from the seat plate 1210, locking an object placed on the seat plate 1210. When the unlocking operation member 1221 is pressed and moves inward from the locked position to the unlocked position, the locking member 1222 moves in conjunction with the movement of the unlocking operation member 1221, unlocking the object on the seat 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] 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 via 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, the 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, allowing these locking members 1222 to move together in response to the movement of the unlocking operation member 1221, thereby realizing synchronous unlocking or synchronous locking of an object using multiple locking members 1222.

[0171] For example, as shown in FIG. 10A , one embodiment of the first aspect of the present disclosure is provided with two unlocking operation members 1221. Here, the two unlocking operation members 1221 are respectively located on both sides of the seat plate 1210 in the lateral direction (i.e., the lateral direction D12) and are each movable relative to the seat plate 1210 between a locked position and an unlocked position. 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 seat plate 1210 and 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 seat 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 Figure 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 Figure 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 seat plate 1210 with respect to their center line C15, and two front locking members 12221 are arranged between the two unlocking operation members 1221 with respect to their 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 seat plate 1210 extends along the longitudinal direction D11 of the seat 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 the center line C15 of the seat plate 1210 may be connected to each other via the traction member 12232 so 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 locking members 12221 located on the front side are connected to diagonally arranged rear locking members 12222 via corresponding pulling members 12232. When the unlocking operation member 1221 is operated, the front locking member 12221 moves toward the center line C15, and further, the rear locking member 12222 connected to the front locking member 12221 (arranged diagonally from the front locking member 12221) moves in the opposite direction, i.e., in the direction facing the front locking member 12221, causing the rear locking member 12222 to also move toward the center line C15. Furthermore, when the unlocking operation member 1221 is released, both the front locking member 12221 and the rear locking member 12222 move in directions away from the center line C15. In another embodiment, the front locking member 12221 and the rear locking 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 front locking member 12221 and the rear locking member 12222 move in opposite directions, but the front locking member 12221 moves in a direction approaching the center line C15, and the rear locking 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, covered with a steel wire jacket, and hidden in the sheet plate 1210. In other embodiments, the traction member 12232 may be a flexible member, such as a composite wire.

[0175] 10A , in this embodiment, an interlocking assembly 12231 is also provided between the two front locking members 12221 and / or the two rear locking members 12222 so that the two front locking members 12221 and the two rear locking members 12222 move synchronously in opposite directions about 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 hinges two by two), where the connection mechanism has a pivot point fixed to the sheet plate (see sheet plate 1220 in FIG. 10B ; the upper case of the sheet is removed in FIG. 10A to show the structure of the locking mechanism 1220), and can extend (correspond to the locked position of the unlocking operation member 1221) or shorten (correspond to the unlocked position of the unlocking operation member 1221) on both sides of the pivot point as a 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., 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 this central connection point P2 are respectively connected to two front locking members and / or two rear locking members.

[0176] With the interlocking assembly 12231 as described above, 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] Due to cooperation between the interlocking assembly 12231 and the interlocking member (e.g., the traction member 12232), when the unlocking operation member 1221 is in the locked position, a user can operate any of the unlocking operation members 1221 to move it from the locked position to the unlocked position, moving the front locking member 12221 connected thereto. Furthermore, the interlocking assembly 12231 causes the two front locking members 12221 to move synchronously in opposite directions (e.g., closer to each other), and the interlocking member causes the rear locking members 12222 to move in opposite directions (e.g., closer to each other), so that the front locking members 12221 and rear locking members 12222 can simultaneously release their objects. 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 synchronized and moved in the same direction by a linkage assembly 12231.

[0179] 10A , the engagement base assembly 120 further includes a resilient device 1224 that provides a force to place or return the unlocking operation member in the locked position. In one embodiment, the resilient device 1224 is disposed between the two front locking members 12221 and constantly provides a force to separate the two front locking members 12221 from each other. Optionally, the resilient device 1224 can also be disposed between the two rear locking members 12222 that constantly provides a force to separate the two rear locking members 12222 from each other. For example, the resilient device 1224 can be a compression spring. In another embodiment, when locking members provided on the same side (e.g., two locking members located on the front side, two locking members located on the rear side, 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 may be 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 locked position. Note that 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] Additionally, 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 locking members 12221 are fixedly connected to the corresponding unlocking operation members 1221 via corresponding slide members 1225, and the slide members 1225 are slidable in slide grooves of the locking mechanism 1220. As a result, when a user operates the unlocking operation members 1221, the front locking members 12221 and the unlocking operation members 1221 connected to each other by the slide members 1225 slide in sync, and further, the two front locking members 12221 slide relative to each other. The front locking members 12221 and the unlocking operation members 1221 may also be connected by other means such as bolting or adhesive.

[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 in the seat plate 1210 at a position corresponding to the locking portion 12221a, so that the locking portion 12221a can protrude from the opening in 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, i.e., the front portion of the upper case of the seat plate 1210 forms a case structure with a large height (compared to its central portion) (hereinafter, this portion with a large height can be referred to as the "raised structure"), and a recess 1212 is provided on the raised structure of the case structure at a position corresponding to the end of the front locking member 12221, and the recess 1212 penetrates the raised structure in the vertical direction D11 to accommodate at least a portion of an object. The recess 1212 has an opening that allows the locking portion 12221a of the front locking member 12221 to protrude from the seat plate 1210, and the locking portion 12221a protruding from this opening is located within 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) may have a similar structure (i.e., a raised structure, a recess, and its opening, etc.), and a description thereof will be omitted here. When an object is placed on the seat plate 1210, the recess 1212 accommodates at least a portion 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 portion of the object in the recess 1212. In one embodiment, as shown in FIG. 10B , the upper surface of the portion of the locking portion 12221a protruding from the opening is downwardly inclined, making it easier for the portion used for locking to move along the inclined surface to enter the recess 1212. It should be noted that the "front side" or "rear side" of the seat plate 1210 can be understood as meaning that when the seat plate 1210 is installed on the wheeled transport device 11 shown in FIG. 6A, the side of the seat plate 1210 facing the direction of travel of the wheeled transport device 11 is the "front side," and the side of the seat plate 1210 facing the direction of retreat of the wheeled transport device 11 is the "rear side."The longitudinal direction D11 can be considered to be the front-to-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. FIG. 11B shows the locking mechanism 1220 switching from the locked state shown in FIG. 11A to the unlocked state.

[0186] 11A, when the locking mechanism 1220 is in the locked state, the unlocking operation member 1221 is in the locked position (i.e., the initial position), and the front locking members 12221 fixedly connected to the unlocking operation members 1221 at both ends are in their locked positions, i.e., 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 objects on both sides of the seat plate 1210 in the lateral direction D12. At this time, the elastic device 1224 located between the front locking members 12221 is in its initial state (e.g., extended state), and optionally, the elastic device (not shown) located between the rear locking members (not shown) is also in its initial state (e.g., 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 in conjunction 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, thereby synchronously moving the corresponding rear locking members (not shown) via the interlocking members (in this embodiment, "pulling members 12232") to retract the locking portions 12221a of the two front locking members 12221 and the locking portions (not shown) of the two rear locking members 12221 to the seat plate 1210, thereby unlocking the object. At this time, the elastic devices 1224 located between the front locking members 12221 tend to return the unlocking operation member 1221 to the locked position (e.g., are in a compressed state), and optionally, the elastic devices (not shown) located between the rear locking members (not shown) are 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 below and away from the fixed connection point P1, as shown in Figure 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 and 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 their locked positions, and the two front locking members 12221 move apart (for example, separated by an elastic device 1224 therebetween), simultaneously separating the two rear locking members (not shown), and 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 apart by an elastic device (not shown) therebetween, separating the two front locking members 12221, and returning the locking mechanism 1220 to the locked state shown in Fig. 11A.

[0189] Referring to FIG. 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" mentioned 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 in 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, where Fig. 13A shows the carrier 130 locked onto the seat plate 1210 by the locking mechanism 1220, and Fig. 13B shows the carrier 130 placed on the seat plate 1210 with the locking mechanism 1220 in an unlocked state.

[0192] As shown in FIG. 13A, when the locking mechanism 1220 is in the locked state, the locking portion 12221a of the front locking member 12221 extends from the opening of the recessed portion 1212 of the seat plate 1210 and locks the engaging member 13131 of the carrier 130 in the recessed portion 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., the opening of the recess 1212), and at this 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 engaging 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 lock members 1222' arranged on both sides (the front and rear sides as shown in FIG. 14A) of the engagement base assembly 120' in the longitudinal direction D11, and in particular, a front lock member 12221' and a corresponding rear lock member 12222' arranged diagonally. In one example, the front lock member 12221' and the rear lock member 12222' arranged diagonally are each pivotally connected at both ends of two links 12232', 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 synchronously in opposite directions by the interlocking assembly 12231', gradually decreasing the angle α of the two cross-connected links 12232', and the links 12232' and the two rear locking members 12222' connected to the two front locking members 12221', respectively, move closer to each other by moving in opposite directions. When the unlocking operation member 1221' is released, the two front locking members 12221' move away from each other synchronously, the angle of the two cross-connected links 12232' gradually increases, and the two rear locking members 12222' also move away from each other.

[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' to limit the minimum value of the angle α between the two links 12232', i.e., to prevent the two links 12232' from locking with too small an angle between them and to prevent 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 one embodiment of the present disclosure is schematically illustrated, with the upper case of the seat plate removed to reveal the retention mechanism 1250. As shown 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 the two rear locking members 12222′ to retain the unlocking operation member 1221′ in the unlocked position, i.e., to maintain the engagement base assembly 120′ in an unlocked state. In this manner, a user does not need to continuously perform an unlocking operation on the unlocking operation member 1221′ (e.g., press the unlocking operation member 1221′) to maintain the engagement base assembly 120′ in an unlocked state so that an 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 locking member 12221' and the rear locking 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 locking member 12221 and the rear locking member 12222 are connected via a traction member (the embodiment shown in Figure 10A).

[0200] 15 and 16A, FIG. 16A is a schematic cross-sectional view of the retention mechanism 1250 taken along line FF in FIG. 15, illustrating the structural relationship between the retention mechanism 1250 and the seat plate 1210′. As shown in FIG. 15, the retention 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; the upper case of the seat plate 1210′ is shown in FIG. 16A), is movable in a vertical direction relative to the seat plate 1210′, and can protrude at least partially from above the seat plate 1210′ (specifically, its upper case, see FIG. 16A). The buckle portion 1252 is movably provided below the touch button 1251 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, the lower case of the seat plate 1210′) and provides a force that causes the touch button 1251 to protrude upward from the seat 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 retention 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 retention hook 12221′b for operably hooking the buckle portion 1252 of the retention mechanism 1250 is provided at a lower portion of one end of the front lock member 12221′ away from the lock portion 12221′a. A chamfer may be provided at the tip of the retention 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 member 1221' has not been subjected to an unlocking operation, 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 locking 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, the operation process of the holding mechanism 1250 is shown schematically when the carrier 130 is placed on the seat plate 1210' and the carrier 130 needs to be moved away.

[0204] 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'. At the same time, the bottom surface of the carrier 130 presses the touch button 1251, compressing the reset member 1255. 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 ready 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., due to 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), and the buckle portion 1252 is moved down by the elastic member 1253 and hooked by the retention hook 12221'b until the hook-shaped portion of the retention hook 12221'b overcomes the buckle portion 1252. At this time, the holding mechanism 1250 is in a holding state, and the buckle portion 1252 is maintained engaged with the holding hook 12221'b by the downward pressure applied to the carrier 130 and the elastic member 1253, holding the unlocking operation member 1221' in the unlocked position, and the engaging member 13131 of the carrier 130 is not blocked by the locking 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' due to the reset member 1255, and 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 unlock 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 that it can move up and down along the slideway 1214'. Notch 1215' is 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 the holding mechanism 1250.

[0209] Also, as shown in FIG. 16D, when attaching the 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, and the distance by which the unlocking operation member 1221' is pressed to perform unlocking is L13. In one embodiment, L11 < L12 < L13. Thus, 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, when the carrier moves, the carrier attached to the frame and therein Animals, etc. By providing a support bracket with a shock-absorbing effect on the engagement base assembly so as to provide shock-absorbing support to the carrier, a more comfortable and safe wheeled transportation device can be provided. Furthermore, 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 shock-absorbing displacement of the support bracket can be limited to a certain range so that the carrier mounted on the frame via the engagement base assembly can move more stably. The present disclosure is not limited to the above-described 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 mounted thereon.

[0212] Referring to Figures 17A to 17D, Figures 17A and 17B show perspective views at 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 engaging base assembly 120A, and a carrier (not shown) attached to the engaging 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 one another and can be folded relative to one another. Specifically, the frame 110A has a similar configuration to the previously described embodiment (shown in FIG. 2), and therefore a detailed description thereof will be omitted. The engaging 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 engaging base assembly 120A, thereby enhancing the safety of the object during transportation. By manipulating engagement base assembly 120A, a user can easily attach and detach an object to frame 110A. Engagement base assembly 120A is described in more detail below with reference to Figures 18A-18D.

[0214] 18A-18F, FIG. 18A shows a perspective view of the engagement base assembly 120A. FIGS. 18B and 18C show the support structure 1240A and the locking mechanism 1220A positioned within the seat plate 1210A, with the engagement base assembly 120A of the seat plate 1210A removed. FIG. 18D is a cross-sectional view of the engagement base assembly 120A taken along line XX shown in FIG. 18A. FIG. 18E shows a partial enlarged view of portion J shown in FIG. 18D, with the unlocking operation member 1221A in the locked position. FIG. 18F shows the unlocking operation member 1221A shown in FIG. 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, showing only the unlocking operation member 1221A), 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, a 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 a certain distance from one end (e.g., the center of the rear end) of the seat plate 1210A to provide a larger support surface (i.e., a first abutment surface) and more stably support a carrier (not shown) placed thereon. 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 maintaining balance after the carrier is fully engaged with the frame 110A. Optionally, the first and second abutment surfaces 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 FIGS. 18A to 18C, the support structure 1240A is provided on both lateral sides of the seat plate 1210A and may include, for example, two support brackets 1241A symmetrically arranged on both sides of the seat plate 1210A. Unlike the embodiment of FIGS. 3A to 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 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 an object thereover. Optionally, the connection point between the second support rod 12413A and the vertical rod 12411A is located at the center of the seat plate 1210A in the vertical direction D15.

[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 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, engagement base assembly 120A is pivotally connected and mounted to frame 110A via its support structure 1240A, where seat plate 1210A and locking mechanism 1220A of engagement base assembly 120A are fixedly attached to support structure 1240A, and seat plate 1210A provides a substantially horizontal support surface for placing an object (in this example, a carrier). Support structure 1240A further includes first and second connecting pieces 1244A and 1245A, each pivotally connected to frame 110A, such that engagement base assembly 120A can fold together with frame 110A when frame 110A is folded.

[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, a locking mechanism 1220A is attached within the seat plate 1210A to lock and unlock an object positioned on the seat 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 within the seat plate 1210A and is movable between a locked position and an unlocked position relative to the seat plate 1210A. The difference from the unlocking operation member 1221 of 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 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 portion of the unlocking operation member 1221A protrudes from the sheet plate 1210A, locking an object placed on the sheet plate 1210A. 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 conjunction with the movement of the unlocking operation member 1221A, unlocking the object on the sheet plate 1210A. In one example, as the unlocking operation member 1221A moves vertically, the unlocking operation member 1222A can be moved substantially horizontally to achieve unlocking. That is, the movement direction of the unlocking operation member 1221A may be approximately perpendicular to the movement 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 assemblies, interlocking members, etc.) is the same as in the previously described embodiment, and therefore will not be described 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, particularly in terms of differences from the locking member 1222 in the previously described 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 in the sheet plate 1210A to lock an object placed on the sheet plate 1210A. As in the above-described 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, as shown in FIGS. 18D to 18F, the locking member 1222A may have a first portion 12221A and a second portion 12222A that are fixedly connected to each other. The second portion 12222A is connected below 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 spaced a certain distance from the unlocking operation member 1221A. The locking portion 1222Aa is provided at the end of the first portion 12221A (i.e., the end closest 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 formed.

[0227] 18E and 18F, the unlocking operation member 1221A is further provided with a drive pin 12211A, and a diagonal hole 1222Ab is provided in one end of the second part 12222A of the locking member 1222A that is closer to the unlocking operation member 1221A, and the drive pin 12211A of the unlocking operation member 1221A can slide within the diagonal hole 1222Ab, i.e., the drive pin 12211A can slide relative to the diagonal hole 1222Ab as the unlocking operation member 1221A is operated. In one example, as shown in FIGS. 18E and 18F, the diagonal hole 1222Ab can be arranged so as to slope downward from an inward / outward orientation.

[0228] 18E and 18F, Fig. 18E shows the unlocking operation member 1221A in the locked position, and Fig. 18F shows the unlocking operation member 1221A in the unlocked position. When the unlocking operation member 1221A is operated, the drive pin 12211A slides relative to the oblique hole 1222Ab as the unlocking operation member 1221A moves, thereby moving the locking member 1222A from the unlocked position to the unlocked position. For example, referring to FIGS. 18E and 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 drive pin 12211A fixed to the unlocking operation member 1221A moves downward accordingly. In other words, the downward movement of the drive pin 12211A of the unlocking operation member 1221A causes it to slide relatively with 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 seat plate 1210A is pulled back to the seat plate 1210A, unlocking the object provided on the seat plate 1210A.

[0229] The locking mechanism 1220 of this embodiment may also be provided with an elastic device 1224A that provides a force to place or return the unlocking operation member 1221A in 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 FIGS. 18D to 18F, when the unlocking operation member 1221A is released, the elastic device 1224A allows the unlocking operation member 1222A to move to its locked position, and the force of the drive pin 12211A in the oblique hole 1222Ab moves the unlocking operation member 1221A upward to the locked position.

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

[0231] Referring to FIG. 19A, FIG. 19A shows a perspective schematic 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, and the case 2310 (also referred to as the "mounting portion") is Pets The bracket device 2320 is attached to the case 2310 to support the case 2310 and is engageable with the engagement base assembly 2200 so that the carrier 2300 is 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 between them 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 at a different 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 wheel 2181, the rear support bar 2120 is connected to the rear wheel 2182, and the upper support bar 2130 is connected to the handrail 2170.

[0236] 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 a first pivot portion 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 via the first pivot portion 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 a 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, respectively, at the first pivot portion 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 connected to 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 with 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, frame 2100 includes a connection assembly (described below) for attaching engagement base assembly 2200 to frame 2100, which may be pivotally coupled to frame 2100 such that the connection assembly allows engagement base assembly 2200 to pivot as frame 2100 collapses. The connection assembly may also function as a support structure for 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 to the rear support bar 2120 at a third pivot point O23. One end of the connecting piece 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 connections at 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 generally S-shaped structure to avoid interference with the rear support bar 2120, the seat plate 2200, or other components when the frame 2100 is folded, i.e., to form an avoidance structure. Specifically, the generally 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 generally overlaps with the upper support bar 2130. However, the present disclosure is not limited thereto, and the interlocking member 2160 may be designed to avoid other shapes or structures of other components when folded. Furthermore, if other members are adjusted so that there is no interference between multiple lever members or 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, with both ends of the auxiliary support member 2150 connected to the other end of the corresponding first coupling 2140. Alternatively, the auxiliary support member 2150 may be provided as two separate linear lever members respectively connected between the first connecting 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 positioned 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 shows a perspective view of an engagement base assembly 2200 according to the present disclosure, and FIG. 21 shows a perspective view of the engagement base assembly 2200 shown in FIG. 20 after removal of the seat plate 2210.

[0245] 20 and 21, the engagement base assembly 2200 includes a seat plate 2210 and a locking mechanism 2220 for locking a bracket 2300 (not shown in FIGS. 20 and 21, see FIG. 19A) to the seat plate 2210. Here, the engagement base assembly 2200 may have multiple engagement point locations for supporting and positioning the carrier 2300, thereby increasing the stability of the connection between the carrier 2300 and the engagement base assembly 2200. For example, as shown in FIG. 20, the multiple engagement point locations may be symmetrically arranged on the engagement base assembly 2200 along the longitudinal centerline 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 locations may be provided, with centers symmetrically arranged on the engagement base assembly 2200.

[0246] 20, the seat plate 2210 may have a first extension portion 2211. The first extension portion 2211 extends from one end of the seat plate 2210 (for example, the rear end, i.e., the end close to the rear wheels 2182 as shown in FIGS. 19A and 19B). More specifically, the first extension portion 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 (not shown in FIG. 20) thereon. Note that the "rear end" here refers to the rear side with respect to the frame 2100 (for example, the rear wheels 2182 are located on the rear side of the frame 2100). 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. In addition, the first extension 2211 may be provided in the form of a carrying hand to facilitate lifting and movement after folding. In one embodiment, the seat plate 2210 can also be arranged in an openwork shape, for example, a ring-shaped 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 be used to grasp, 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 the front end of the seat plate 2210 (i.e., near one end of the front wheel 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] 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 FIG. 19A). In one embodiment, as shown in FIG. 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 two horizontal segments (i.e., two vertical 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 more detail below in conjunction with FIGS. 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 at 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 seat plate support member 2230 and the auxiliary support member 2150. For example, the auxiliary support member 2150 and the seat plate support member 2230 are connected to each other at the second pivot point O22 via lever members drilled in the first coupling 2140, and are arranged on both sides of the first coupling 2140, allowing the auxiliary support member 2150 and the seat plate support member 2230 to rotate 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 seat plate support member 2230 and the auxiliary support member 2150. Optionally, the auxiliary support member 2150 may be fixedly coupled to the seat plate support member 2230, or the two may be integrally formed. In another embodiment, both the auxiliary support member 2150 and the seat plate support member 2230 can be connected to the engagement base assembly 2200 .

[0251] In the above-described embodiment, the fixedly connected auxiliary support member 2150 and the seat plate support member 2230 can be considered as the second connection part of the connection assembly when combined. However, it should be understood that the second connection part may also 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 linkage 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 perspective 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 perspective view of the frame 2100 and the engagement base assembly 2200 shown in Figure 24 from another angle, Figure 26 shows a side view of the wheeled transport device 21 shown in Figure 19A, and Figure 27 shows a front view of the wheeled transport device 21 shown in Figure 26 after the carrier 2300 has been removed.

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

[0254] Specifically, in one embodiment, the engagement base assembly 2200 is positioned at a height lower than the first pivot portion A2. For example, it may be located near 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 which the engagement base assembly 2200 is located may be smaller than the median of the overall height H2 of the frame 2100. 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 on the frame 2100, the user can more conveniently and labor-savingly install and position the carrier 2300 (see FIG. 19A ) on the engagement base assembly 2200, improving convenience of use and the user experience. Furthermore, the frame 2100 can be adapted to carriers 2300 of different sizes (e.g., different heights), thereby improving usability. It should be noted that the engagement base assembly 2200 may be mounted on 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, and the present disclosure is not limited thereto.

[0255] 24 and 25, the center of gravity G of the engagement base assembly 2200, which is located at a lower position, can be offset to the rear wheel 2182 relative to the first pivot portion A2, contributing to improved stability of the frame 2100. In particular, 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 shifted rearward, so that the chassis will not overturn even if a pet in the carrier 2300 approaches the front end of the carrier 2300 (at which time the weight of the pet is concentrated at the front end of the carrier 2300), which helps to improve the stability of the overall configuration 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 the 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 wheels 2182 and the end of the frame 2100 (e.g., the handrail 2170) is smaller than the horizontal distance L21 between the front wheels 2181 and the rear wheels 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] Referring to Figures 28 to 31, the folding process of frame 2100 and engaging base assembly 2200 is shown, with Figure 28 showing a side view of frame 2100 and engaging base assembly 2200 shown in Figure 24 when fully expanded, Figure 29 showing a side view of frame 2100 and engaging base assembly 2200 shown in Figure 28 while in the process of contracting, Figure 30 showing a side view of frame 2100 and engaging base assembly 2200 shown in Figure 28 after fully contracting, and Figure 31 showing a front view of frame 2100 and engaging base assembly 2200 shown in Figure 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 connected to the first pivot portion A2 and can be folded relative to one another. Additionally, as the frame 2100 is folded, the engagement base assembly 2200 can be pivoted via the connecting parts. 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 closer 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 FIGS. 29 and 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, causing the rear vertical ends of the seat plate support member 2230 and the locking member 2200 attached thereto to pivot 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] Referring further to FIG. 30, when the frame 2100 is fully folded, i.e., the front support bar 2110, rear support bar 2120, upper support bar 2130, and handrail 2170 are folded in their closest positions to one another, the engagement base assembly 2200 pivots and is stored between the upper support bar 2130, front support bar 2110, and rear support bar 2120.

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

[0262] A third aspect of the present disclosure relates to a carrier, and 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 according to 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. The case 3110 (which may also be referred to as a "mounting portion") includes a bottom 3111 (i.e., the case bottom) and a peripheral wall 3112 connecting the bottom 3111. The bottom 3111 and the peripheral wall 3112 surround and define a storage space 3113 (i.e., a storage space for a child or an animal), where an upper surface of the bottom 3111 is located in the storage space 3113 and a 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), or expanded ethylene oxide (EPO), 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 a carrier 3100 according to a 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 periphery of the peripheral wall 3112 of the case 3110. The two second brackets 3122 are The second brackets 3122 are coupled to the first bracket 3121 and are 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 along the horizontal axis direction D32 of the case 3110, via the bottom 3111 of the case 3110, to the other side of the peripheral wall 3112 of the case 3110. By providing the two second brackets 3122 at an interval along the peripheral wall 3112 in this way, 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, and 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 above and below 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 view of a carrier 3100 according to a first embodiment of the third aspect of the present disclosure when attached to a base 3B0, and Fig. 32E shows a schematic view of a portion of the structure of the carrier 3100 according to the first embodiment of the third aspect of the present disclosure when 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 attached to the base 3B0 by cooperation with the engagement structure 3B1 of the third bracket 3123, where 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. 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, 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] Furthermore, when carrier 3100 is attached to base 3B0, because carrier 3100 has a long structure, the center of gravity of carrier 3100 is located above base 3B0. Therefore, when a user attempts to release carrier 3100 from base 3B0, the user must operate the unlock button and pull up carrier 3100 to prevent hook pressure from occurring and preventing smooth release. This prevents carrier 3100 from completing unloading while the user is still holding the handle, and prevents carrier 3100 from momentarily tilting due to the center of gravity being shifted relative to 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 may include a second bracket. Or, the bracket device may include two or more second brackets to provide better support for the case. Also, in another embodiment, the third bracket and the fixing assembly may be omitted, i.e., the case may not 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 Fixing Devices, 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, wherein the engagement member 31231 may be a ring-shaped structure, wherein the two first structural reinforcement members 31232, 31233 are spaced apart from each other along the vertical axis direction D31 of the case 3110, and 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 provided 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 Figure 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] 32E and 32F, Fig. 32F is a cross-sectional schematic view of a carrier 3100 according to a first embodiment of the third aspect of the present disclosure. As shown in Fig. 32F, the central portion of the second structural reinforcement member 31234 faces the bottom 3111 of the case 3110, and the height of the central portion is greater than the height of both ends, forming a curved shape. In another embodiment, the central portion can also selectively abut against the bottom 3111 of the case 3110 (particularly its bottom surface). 32E, second structural reinforcement member 31234 is located between two first structural reinforcement members 31232, 31233, the distance between second structural reinforcement member 31234 and first structural reinforcement member 31232 is approximately equal to the distance between second structural reinforcement member 31234 and first structural reinforcement member 31233, and the cross-sectional area of ​​the tube of 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 carrier 3100 is used to carry an infant or other items, a force-receiving support member supported by second structural reinforcement member 31234 can be provided in the center of bottom 3111 of case 3110. Furthermore, when the third bracket 3123 is subjected to an external force, it can firmly resist a large impact force, thereby providing the bracket device 3120 with high impact resistance and resistance to deformation by force. However, the structure of the bracket device of the present disclosure is not limited to this embodiment and can be determined according to actual design needs. For example, in another embodiment, if the carrier 3100 is not an elongated case structure but a case structure with four sides of approximately equal length, the second structural reinforcement member can be omitted. Alternatively, if the carrier 3100 is a case structure that is long along the longitudinal axis direction D31, multiple second structural reinforcement members can be installed to provide the case 3110 with high impact resistance. In another embodiment, the third bracket can include only 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 that extends from one side of the peripheral wall 3112 through the bottom portion 3111 to the other side of the peripheral wall 3112 along the vertical axis direction D31, thereby further strengthening the support force for 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 instead includes multiple second brackets 3122 that are directly connected to the third bracket 3123. By configuring the installation positions of the multiple second brackets 3122 to correspond to different cross-sectional areas of the case 3110 along the vertical axis direction D31, 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 surrounding and defining a first plane, and the engagement member 31231 surrounding and defining a 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 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 positioned approximately close to or adjacent to the central axis.

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

[0273] Furthermore, as shown in FIGS. 32D to 32F, the case 3110 (e.g., foam material) can have a first portion and a second portion. The first portion is disposed above the bracket device 3120 (specifically, above the first bracket 3121), and the second portion is connected below the first portion. The thickness T1 of the sidewall of the first portion near the second portion is greater than the thickness T2 of the sidewall of the second portion. The thickness of the sidewall of the first portion can gradually decrease upward and outward, forming a smooth, curved upper edge that increases comfort upon contact and reduces discomfort upon impact. In one example, the first and second portions can be integrally molded or manufactured separately and then joined together. Referring to FIGS. 32B and 32F, the surfaces of the case 3110 and the bracket device 3120 are substantially congruent, and the outer wall of the first portion and the outer surface of the first bracket 3121 of the bracket device 3120 are also substantially flush. Of course, in other embodiments, the bracket device 3120 may be slightly recessed into the outer surface of the case 3110 without taking into account the flatness of the entire outer surface of the carrier, or the sidewall thickness T1 of the first portion near 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 at a lower position 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 below the upper edge of the first part, safety can be further enhanced by protecting the animals in the carrier from direct impact with rigid hardware (for example, bracket devices, ceiling lock portions, roof frames, or U-shaped hardware for handles, etc.).

[0275] Further, as shown in FIG. 32C, the fixing assembly 3124 includes four first connecting brackets 31241, each connecting bracket 31241 connecting a corresponding second bracket 3122 to a corresponding third bracket 3123, specifically, each connecting bracket 31241 connecting 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, and 31242D, where the guide members 31242A and 31242B are connected substantially perpendicularly to the first structural reinforcement member 31232, and the guide members 31242C and 31242D are connected substantially perpendicularly to the first structural reinforcement member 31233, and the four guide members 31242A, 31242B, 31242C, and 31242D are arranged in 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 may include guides arranged in sets. It should be understood that in another embodiment, the guides may be omitted.

[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 a carrier 3100 according to a 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 Figs. 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 Figs. 32H and 32I), and a plurality of second connecting brackets 31245 (shown in Fig. 32C) that connect the third bracket 3123. 32C , multiple second connecting brackets 31245 can be attached to both sides of the engaging member 31231 along the longitudinal axis direction D31, thereby making the connection between the case 3110 and the bracket device 3120 stronger. Here, since a corresponding second bracket 3122 is not installed above the second connecting bracket 31245, the length of the second connecting bracket 31245 needs to be longer than the first connecting bracket 31241. Furthermore, the two second connecting brackets 31245 on one side of the engaging member 31231 can be spaced apart from each other, which not only allows the engaging member 31231 to receive an even force on this side, but also allows another element such as an adjuster 3140 to be provided between the two second connecting brackets 31245, making the structure more compact.

[0279] Furthermore, as shown in FIGS. 32C and 32I, the bottom 3111 of the case 3110 includes a plurality of through-grooves 31111, each of which is located in a corresponding first connecting bracket 31241 or a corresponding second connecting bracket 31245. The plurality of second connecting brackets 31245 are at least partially located in the corresponding through-grooves 31111, and each locking set 31244 is connected to a locking portion provided on the corresponding bracket connecting member 31243. Material 312441 and locking part Material Lock to 312441 Locking fixing element312442, which allows the case 3110 to 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-slot 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 reinforcing 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. Locking member 312441 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 to fix the corresponding Locking member 312441 are locked together.

[0281] However, the number and installation positions of the bracket connecting members, locking sets, second connecting brackets, and through-slots 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 a set, one locking set installed in a 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 installed in a set, a bracket connecting member installed in the set, and a locking combination installed in the set, but does not include a second connecting bracket, and the bottom of the case is configured with a slot installed in the set and located on the corresponding first connecting bracket.

[0282] As will be appreciated, in another embodiment, 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 the snap-fit ​​protrusion with the snap-fit ​​notch.

[0283] In addition, to improve riding comfort, as shown in Figures 32H and 32I, each bracket connecting member 31243 includes a recess 312431, and the locking member 31241 is accommodated in the recess 312431, so as not to protrude 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 accommodated in the corresponding recess 31112, so as not to protrude the bottom 3111 of the case 3110.

[0284] However, the number and location 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 formed therein. It should be understood that in another embodiment, the arrangement 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 FIGS. 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 adjusting segment 3132 that can cooperate with each other, thereby restricting the child within the storage space 3113. 32B and 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, and the first positioning bracket 3125 and the second positioning bracket 3126 are respectively connected to two second brackets 3122, and 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 positioned in two of the corresponding three bottom openings 31113, and two convex extension structures 31253 protruding from the first bracket body 31251, and 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 arranged 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, 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 to adjust and lock the restraint belt 3130, and each convex extension structure 31253 is at least partially inserted into the corresponding bottom opening 31113 to prevent the restraint belt 3130 from 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 locations of the bottom openings, positioning brackets, bracket openings, and protruding structures 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, with the handle 3150 in a folded state. As shown in Figs. 32A, 32C, and 32L, the carrier 3100 further includes a handle 3150 pivotally connecting the first bracket 3121. By pivoting the handle 3150, the carrier can be switched between the use state shown in Fig. 32A and the storage state shown in Fig. 32L, thereby facilitating portability and storage. Furthermore, in this embodiment, the handles 3150 are approximately disposed on the upper edges of the two side walls of the case 3110, allowing the handles 3150 to be smoothly folded to 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, viewed from different angles. As shown in Figs. 33A to 33B, the carrier 3200 includes a case 3210 and a bracket device 3220. Unlike the first embodiment, the storage space 3213 of the case 3210 is used to store pets, and the carrier 3200 is a pet carrier. The fastening assembly may include only two second connecting brackets 32245 located on both sides of the engaging member 32231 along the longitudinal axis direction D31 and approximately in the center of each side. 33B to 33E, Fig. 33C is a schematic cross-sectional view of a carrier 3200 according to a second embodiment of the third aspect of the present disclosure, Fig. 33D is a top view of the carrier 3200 according to the second embodiment of the third aspect of the present disclosure with the handle folded, and Fig. 33E is an enlarged schematic view of a partial structure of the carrier 3200 according to the second embodiment of the third aspect of the present disclosure. As shown in Figs. 33B and 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 Figs. 33C to 33E, the bottom 3211 of the case 3210 includes only a bottom opening 32113 located approximately at the center of the case 3210. 33B, the distance between second structural reinforcement member 32234 and first structural reinforcement member 32232 is slightly greater than the distance between second structural reinforcement member 31234 and first structural reinforcement member 32233 to accommodate the installation position of bottom opening 32113. Furthermore, as shown in FIGS. 33C and 33E, the central portion of second structural reinforcement member 32234, located between two first structural reinforcement members 32232 and 32233, is bent toward bottom 3211 of case 3210 and abuts against bottom 3211 of case 3210, thereby enhancing the impact resistance of bracket device 3220.Furthermore, the bracket device 3220 only includes a positioning bracket 3225 that connects the central portion of the second structural reinforcement member 32234 and is located approximately in 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 in the corresponding bottom opening 32113, and a convex extension structure 32253 that protrudes from the bracket 32251 and is at least partially inserted into the bottom opening 32113, the restraint belt 3230 only includes a position-limiting segment 3231 but does not include an adjustment segment, the carrier 3200 does not include an adjuster, and the position-limiting segment 3231 is provided with a position-limiting member 3233 that can be used to engage with a snap ring on a pet vest to restrain the pet within the containing space 3213. Other configurations of this embodiment are similar to those of the first embodiment and have similar various modifications, and therefore, for the sake of brevity, description thereof will be omitted here.

[0289] 34A to 34C, which are schematic external views of a carrier 3300 according to a third embodiment of the third aspect of the present disclosure, viewed from different angles. As shown in FIGS. 34A to 34C, the carrier 3300 differs from the second embodiment in that the carrier 3300 does not include a restraining belt or 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 spaced approximately the same distance from the two first structural reinforcement members 33232 and 33233. Other configurations of this embodiment are similar to those of the second embodiment, and include similar variations, and therefore will not be described again for brevity's sake.

[0290] In addition, some current carriers have ceilings installed, but these ceilings are generally connected to the carrier body in a complicated manner, making it difficult for users to remove the ceiling from the carrier body when the ceiling is not needed, which is inconvenient for portability and use. For this reason, the present disclosure also provides a carrier with a removable ceiling.

[0291] 35A to 35C, for example, Figures 35A and 35B are schematic external views of a carrier 3400 according to a fourth embodiment of the third aspect of the present disclosure in different states, and Figure 35C is a schematic partial structural view of the carrier 3400 according to the fourth embodiment of the third aspect of the present disclosure after removing a ceiling 3460 and a seat fabric 3480. As shown in Figures 35A to 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, the handle 3450 is exposed on the seat fabric 3480 to facilitate gripping by a user, and the third bracket 3423 is also exposed on the seat fabric 3480 to facilitate engagement with a base. The ceiling connection assembly 3470 is provided between the ceiling 3460 and the seat fabric 3480, and is provided for detachably connecting the ceiling 3460 and the seat fabric 3480 to each other, the ceiling 3460 including 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 for detachably connecting 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, a ceiling connection assembly can be installed between the ceiling and the case, and 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. Other configurations of this embodiment are similar to those of the third embodiment, and have similar various variations, so a description thereof will be omitted here for the sake of brevity.

[0292] 36A and 36B, Fig. 36A is a schematic view of the exterior of a carrier 3500 according to a fifth embodiment of the third aspect of the present disclosure, and Fig. 36B is a schematic view of a portion of the carrier 3500 according to the fifth embodiment of the third aspect of the present disclosure after the ceiling and seat have been removed. 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, which are attached to first brackets 3521. The strap 3590 includes a belt main body 3591 and second strap connection members 3592 attached to the belt main body 3591 for detachably connecting the first strap connection members 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, respectively, and the two second strap connection members 3592 may be two engagement hooks provided on both ends of the belt body 3591, respectively. In this embodiment, a first positioning groove 3515 is formed on the outer side of the short side of the peripheral wall of the case 3510 to accommodate and position the first strap connection member 35A0 and prevent any movement of the first strap connection member 35A0. In another embodiment, a positioning protrusion may be provided on the short side of the first bracket to position the first strap connection member and prevent excessive movement of the first strap connection member. In another embodiment, the first strap connection member and the second strap connection member may be omitted, and the strap may be connected to surround the first bracket. The rest of the configuration of this embodiment is similar to that of the fourth embodiment, with the same various 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 view of the exterior of a carrier 3600 according to a sixth embodiment of the third aspect of the present disclosure, and Figure 37B is a schematic view of a partial structure of a carrier 3600 according to a sixth embodiment of the third aspect of the present disclosure after the ceiling and sheet have been removed. As shown in Figures 37A and 37B, unlike the fifth embodiment, the carrier 3600 does not include a strap, but instead includes a fixed rope 36B0 for engaging with the vehicle seat and two first fixed rope connecting members 36C0, the two first fixed rope connecting members 36C0 are provided on a first bracket 3621, the fixed rope 36B0 includes a rope main body 36B1 and two second fixed rope connecting members 36B2 provided on the rope main body 36B1, the engagement of the fixed rope 36B0 with the vehicle seat is achieved by winding the rope main body 36B1 around the headrest support rod of the vehicle seat, and the two second fixed rope connecting members 36B2 are respectively used to detachably connect the two first fixed rope connecting 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 portions 36221 adjacent to the two second brackets 3622. Compared to other installation positions on the first bracket 3621, the first bracket 3621 is less likely to deform when subjected to the tensile force of the rope main body 36B1, thereby providing the carrier 3600 with high impact resistance. In this embodiment, a second positioning groove 3616 is formed on the outer side of the long side of the peripheral wall of the case 3610 to accommodate and position the first fixed rope connection member 36C0 and prevent 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 appreciated, in another embodiment, the first and second fixed rope connecting members can be omitted, and the fixed rope can be connected to the first support member so that it can 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 straps having multiple use modes. Other configurations of this embodiment are similar to the fifth embodiment, and have similar various variations, and will not be described here for the sake of brevity.

[0294] 38A, which is a schematic view of the appearance of a carrier 3700 according to a seventh embodiment of the third aspect of the present disclosure. As shown in FIG. 38A, the seventh embodiment differs from the sixth embodiment in 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, the first bracket is connected to the case and is arranged to surround the peripheral wall of the case, and the 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 bracket of the present disclosure is not only lightweight and has high structural strength, but also combines portability with riding safety.

[0296] The cases according to the above-described embodiments of the third aspect of the present disclosure may be attached to the wheeled transport 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 attachment methods, reference may be made to the first aspect above, and detailed explanations will be omitted here.

[0297] In addition to the carriers 3100 to 3700 described in the third aspect of the present disclosure, the fourth aspect of the present disclosure provides other examples of carriers, such as removable ceiling assemblies and carriers including the same. For convenience of explanation, the carriers of the fourth aspect of the present disclosure are represented by "4100" to "4800," respectively.

[0298] Referring to Figures 39 and 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 Figure 39 shows a schematic front view of the carrier 4100, and Figure 40 shows a structural schematic view of the carrier 4100 shown in Figure 39 after removing the ceiling and seat fabric.

[0299] 39 and 40, a 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 a sheet fabric 4150 is at least partially covered around the periphery of the carrier 4100 shown in FIG. 39, 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 view of a perspective structure of the carrier 4100 after the ceiling 4133 and the sheet fabric 4150 shown in FIG. 39 have been removed.

[0300] 40, the case 4110 (which may also be referred to as the "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 storage space). The storage space 4113 has an opening that opens upward so that children, pets, etc. can get on.

[0301] In one example, the bracket device 4120 is provided at least partially around the periphery of 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 approximately horizontally, surrounds the peripheral wall 4112 of the case 4110, and is close to the open portion of the case 4110. Both ends of the second bracket 4122 are 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 along the horizontal axis direction D42 of the case 4110, via the bottom 4111 of the case 4110. Furthermore, in one example, two or more second brackets 4122 may be provided, each connected to the first bracket 4121 and arranged in parallel at intervals 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. By providing the bracket device 4120, the carrier 4100 can be supported and fixed to a cart, a vehicle seat, or the like.

[0302] 39 and 40, a ceiling 4133 is sleeved into the opening of the case 4110 to cover the storage space 4113 of the case 4110. A 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) to expand 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). A ceiling lock device 4132 is provided on the ceiling frame 4131 and removably cooperates with a ceiling lock portion 4124 provided corresponding to the carrier 4100, allowing the ceiling assembly 4130 to be locked above the case 4110. Specifically, when the ceiling assembly 4130 is attached around the case 4110, the ceiling locking device 4132 may engage with a corresponding ceiling lock portion 4124 of the first bracket 4131 of the bracket device 4130 (i.e., removably attached above the case 4110) so that the ceiling frame 4131 of the ceiling assembly 4130 is removably connected to the bracket device 4120 of the carrier 4100. In one example, two ceiling locking devices 4132 (only one shown in the figure) may be provided symmetrically arranged on the ceiling frame 4131 on both sides of the horizontal axis direction D42 of the case 4110. 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 may overlap with the center line M41 of one side edge of the ceiling frame 4131. It will 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 schematically. Here, the ceiling and seat fabric have been omitted from 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 removal.

[0304] In one example, as shown in FIG. 41 , when a ceiling needs to be used, a ceiling frame 4131 is connected to the first bracket 4121 through cooperation between a ceiling locking device 4132 and a ceiling locking portion 4124 of the ceiling assembly 4130. The ceiling frame 4131 is positioned above and substantially parallel to the first bracket 4121. At this time, the ceiling frame 4131 is fitted to the outside of the case 4110, and a 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 FIGS. 42 and 43 , when a ceiling does not need to be used, the ceiling locking device 4132 can be separated from the ceiling locking portion 4124 provided on the first bracket 4121, thereby allowing the ceiling assembly 4130 (including the ceiling installed therein) to be separated from the case 4110, at which point the user can store the ceiling assembly 4130. Specific cooperation methods between the ceiling locking device 4132 and the ceiling locking portion 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 locking 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 from the case 4110 by moving from a locked position to an unlocked position. The ceiling locking 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 within a casing of the ceiling frame 4131, with the remaining portion extending downward from the casing to cooperate with the above-mentioned ceiling lock portion. The unlocking operation member 41321 is at least partially provided within a casing of the ceiling frame 4131, with the remaining portion extending downward from the casing to be contacted and operated by a user, thereby unlocking the locking member 41322.

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

[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 has been removed to show the specific structure of the ceiling locking device 4132 in a locked state. Fig. 46 shows the specific configuration of the ceiling locking device 4132 shown in Fig. 45 in an unlocked state.

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

[0310] Furthermore, the two locking members 41322 may be arranged in mirror symmetry on the ceiling locking device 4132, and each may be pivotally attached to either side 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 locking device 4132 may also include a resilient reset member 41323. The resilient reset member 41323 is connected between the unlocking operation member 41321 and the ceiling frame 4131, and constantly provides a force to place the unlocking operation member 41321 in or return it to the locked position. That is, as shown in FIG. 45, the resilient reset member 41323 constantly applies a vertical downward force to the unlocking operation member 41321 so that the unlocking operation member 41321 constantly 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 section 4124, and FIG. 48 shows a schematic diagram of the unlocking between the ceiling lock device 4132 and the ceiling lock section 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 the case (not shown) by engaging or disengaging with the ceiling locking portion 4124 through 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 engages or disengages with the ceiling locking portion 4124.

[0314] 47 and 48, the locking member 41322 has a hook that protrudes toward the ceiling locking portion 4124, and the ceiling locking portion 4124 includes an engagement pin 41241 that is provided corresponding to the hook. When the unlocking operation member 41321 is in the locked position, the hook is engaged with the engagement pin 41241. When the unlocking operation member 41321 is operated to push and pivot the locking 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 to it, 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] Furthermore, as shown in Figure 47, the ceiling frame 4131 is provided with a lock guide member 41316. The lock guide member 41316 is provided on one side of the lock member 41322 and can guide the positioning of the ceiling locking device 4132 relative to the ceiling locking section 4124, thereby assisting in locking the lock member 41322 and the ceiling locking section 4124. For example, when attaching the ceiling assembly 4130 to a first bracket 4121 (not shown in Figure 47, see Figure 42) on which the ceiling locking section 4124 is provided, the lock guide member 41316 abuts against the inner edge of the ceiling locking section 4124 to guide the ceiling locking device 4132, and by being positioned in correspondence with the ceiling locking section 4124, can engage and disengage the hook of the lock member 41322 with the corresponding engagement pin 41241 of the ceiling locking 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 FIGS. 49 and 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 first pivot portions 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 second pivot portions 41314, where each of the two lock segments 41315 is provided with a ceiling locking device 4132. In one example, the size of the lock segment 41315 provided with the ceiling locking device 4132 according to the present disclosure may be 160 mm to 180 mm, optionally 173 mm.

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

[0319] 51A to 51C, the first pivot connection portion 41313 is provided with a segment adjustment structure such as gear teeth so that the first pivot connection portion 41311 can be held at different angles relative to the locking portion 41315. Specifically, as shown in FIG. 51B, the first pivot connection portion 41313 is formed by pivotally connecting a first pivot segment 41311 and a locking segment 41315 to each other, with first gear teeth 41313a provided at an end of the locking segment 41315, and as shown in FIG. 51C, second gear teeth 41313b provided at an end of the first pivoting segment 41311. Similarly, the second pivot connection portion 41314 may be provided with a structure similar to that of the first pivot connection portion 41313, i.e., gear teeth, so that the second pivot connection portion 41312 can be held at different angles relative to the locking 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 can be at different angles relative to the opening of the case.

[0320] 51A, the first pivotal connection part 41313 is also provided with a reset spring 41313C that constantly urges the first pivotal connection 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 connection part 41314 may be provided with a reset spring to make it easier to unfold the ceiling frame.

[0321] Referring to Figures 52 to 54B, the case 4110 is shown to have the ceiling frame 4131 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 lock with the ceiling lock portion 4124 provided on the first bracket 4121 so that at least a portion 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 the unfolded state as shown in FIG. 52 and is provided around the opening of the case 4110, i.e., when 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 the unfolded state (as shown in FIG. 54A) and is covered over the opening of the case 4110. At this time, the ceiling frame 4131 is hidden 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 about the first pivot portion 41313 and / or the second pivot portion 41314 relative to the locking segment 41315 to partially or fully fold the ceiling frame 4131 and the ceiling 4133 fixedly connected thereto, such as the fully folded ceiling 4133 shown in FIG. 54B. At the same time, the gear teeth provided on the first pivot portion 41313 and / or the second pivot portion 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 correspondingly adjusted, which facilitates the user's related operations and improves safety and convenience of use. In one example, as shown in Figures 53 and 54B, the ceiling frame 4131 (and its ceiling 4133) can, in a fully folded state, stand 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 connecting part and a cooperating connecting part. The connecting parts are provided on opposite sides of the case 4110, and the cooperating connecting parts are provided on corresponding sides of the ceiling 4133 and are joined to the connecting part. Here, one of the connecting part and the cooperating connecting part is a male connecting member (e.g., "4114" in FIG. 54B) and the other is a female connecting member (e.g., "41335" in FIGS. 54A and 54B), and the joining of the male connecting member 4114 and the female connecting member 41335 keeps the ceiling 4133 closed. Note that although FIGS. 54A and 54B only show one example of the male connecting member and the female connecting member (i.e., the male connecting member 4114 is installed on the case 4110 and the female connecting member 41335 is installed on the ceiling 4133), the installation positions of the two are interchangeable; that is, the male connecting member may be installed on the ceiling and the female connecting 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] 54A and 54B, flexible handles (only one flexible handle is shown in the figures) may be provided on both sides of the case 4110, and when a user needs to move the carrier 4100, the user can drag or lift the carrier 4100 by grasping the flexible handles on both sides of the case 4110. In one example, the flexible handles 4151 may be sewn to a sheet fabric 4150 covering the outside of the case 4110 and positioned below the male connecting member 4114. However, the present disclosure is not limited thereto, and the flexible handles 4151 may be fixedly or detachably provided on both sides of the case 4110 in other ways.

[0327] Referring to Fig. 55, a carrier 4100 with its ceiling removed according to one embodiment of the fourth aspect of the present disclosure is shown. As shown in Fig. 55, a storage bag 4152 for placing small items such as straps may be provided on either side of the carrier 4100, for example, by attaching or sewing to a sheet fabric 4150 sleeved on the outside of the case 4110. The storage bag 4152 at least partially covers a connection portion, such as a male connection member 4114, provided on the case 4100, preventing the male connection member 4114 from affecting appearance or being damaged by a collision. The opening edge of the storage bag 4152 is provided with an elastically expandable fastening structure, making 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 may be provided symmetrically on the ceiling lock portion 4124 so that the user can use it to lift the carrier 4100. The handle 4160 in its upright position is higher than the height of the ceiling (not shown in FIG. 55) when folded, and the width of the handle 4160 is greater 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 and 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, where the ceiling sleeved over the case 4210 and the sheet fabric covering the outside of the case 4210 have been 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 locking device taken along line GG in Fig. 57A.

[0330] In this embodiment, the difference between the carrier 4200 and the carrier 4100 shown in FIG. 39 is mainly that the ceiling locking device 4232 has 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 open mouth 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 lock 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), and is configured to lock the ceiling assembly 4230 above the case 4210 in the horizontal axis direction D of the case 4210. 44 The ceiling locking portions 4224 are provided symmetrically on both sides of the ceiling frame 4231 and cooperate with the ceiling locking portions 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, such as the first bracket 4221, that is 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 principles will be described below. FIGS. 57A to 57C show a configuration for removing the unlocking operation member 42321, illustrating perspective views of the ceiling locking device 4232 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 that is fixedly connected to the ceiling frame 4231, for example, by a rivet, and protrudes from the ceiling frame 4231 to a bracket device (first bracket 4221 shown in the figures) of the carrier 4200.

[0334] The ceiling locking portion 4224 may also include a second sheet-like member 42241. See Figures 58A and 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 in an inverted trapezoid shape.

[0335] 57A to 58B, the locking member 42322 (i.e., the first sheet-shaped member) and the second sheet-shaped 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 in one of the first sheet-shaped member 42322 and the second sheet-shaped member 42241, and an engagement protrusion that engages with the engagement hole is provided in the other of the first sheet-shaped member 42322 and the second sheet-shaped member 42241. For example, as shown in FIGS. 57B, 57C, and 58A, the first sheet-shaped member 42322 is provided with an engagement hole 42322a, and the second sheet-shaped member 42241 of the ceiling locking portion 4224 is provided with a corresponding engagement protrusion 42241a, 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] Continuing with reference to Figures 59A-59C, cross-sectional perspective views of the ceiling locking device are shown in different states.

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

[0338] In one example, the ceiling locking device 4232 further includes an elastic reset member 42323, which is connected between one of the unlocking operation member 42321 and the second sheet-like member 42241 and the 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 Figures 59A to 59C.

[0340] 59A, when the ceiling is attached, the elastic reset member 42323 pushes up the second sheet-shaped member 42241 and the unlocking operation member 42321, holding the unlocking operation member 42321 in the locked position, and the engagement hole 42322a of the first sheet-shaped member 42322 engages with the engagement protrusion 42241a of the second sheet-shaped 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-shaped member 42241 away from the first sheet-shaped member 42322 against the biasing force of the elastic reset member 42323, and the engagement hole 42322a can be disengaged from the engagement protrusion 42241a. At this time, as shown in Figure 59C, the ceiling frame 4231 can be moved upward, and the first sheet-shaped member 42322 can be removed from the insertion space between the second sheet-shaped 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-described embodiment, the ceiling frame 4231 of this embodiment includes a first pivot segment 42311, a second pivot segment 42312, and two lock segments 42315, each of which has a first pivot portion 42313 at one end pivotally connected to one end of the two lock segments 42315, and a second pivot portion 42314 at the other end pivotally connected to the other end of the two lock segments 42315, each of which is provided with a ceiling locking device 4232. The difference is that the lock segment 42315 provided with the ceiling locking device 4232 of this embodiment can be smaller, for example, between 110 mm and 135 mm, optionally 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 show cases where the ceiling locking device is used with cases of different sizes.

[0344] 62A to 62C show a long-sized bracket 4300, in which the carrier 4300 includes a case 4310, a bracket device 4320, and a ceiling assembly 4330. 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 the ceiling of the ceiling assembly 4330 has been removed, FIG. 62B shows the ceiling assembly 4330 separated from the case 4310 and the bracket device 4320, and FIG. 62C shows the carrier 4300 after the ceiling assembly 4330 has been removed. As shown in FIGS. 62A to 62C, the carrier 4300 may have two ceiling locking portions 4324 that respectively correspond to ceiling locking devices 4332 provided on a ceiling frame 4331. The two ceiling locking portions 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., in the middle of the side of the first bracket 4321. As shown in FIG. 62C , a structural reinforcing member 43233 may be provided below the long carrier 4300, for example, at the middle in the vertical axis direction D41 of the third carrier 4323, to further enhance 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 will be obvious to those skilled in the art that this embodiment is also applicable to the ceiling locking device shown in FIG. 40.

[0345] The carrier 4300 may also be provided with a handle 4360 for easy portability. In a specific example, as shown in FIGS. 62A to 62C, both ends of the handle 4360 may be symmetrically arranged on the bracket device 4320. 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 locking portion 4324, more specifically, to be adjacent to the ceiling locking portion 4324. This prevents interference with the ceiling locking portion 4324 when the carrier 4300 is lifted via the handle 4360, and prevents the carrier 4300 from tilting excessively. Similar to the handle 4160 of the previously described embodiment, the handle 4360 in its upright position is higher than the height of the ceiling (not shown in FIGS. 62A to 62C) when folded and wider than the width of the ceiling.

[0346] In another specific example, as shown in FIGS. 62D to 62F, a carrier 4300a can have a structure similar to that of the carrier 4300 in the previous example. Specifically, the carrier 4300a includes a case 4310a, a bracket device 4320a fitted to the outside of the case 4310a, and a ceiling assembly 4330a. The two ceiling locking portions 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 midway between the two on the case 4310a side. The two ceiling locking portions 4324a each correspond to a ceiling locking device 4332a provided on the ceiling frame 4331a. 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, on the ceiling lock device 4332a (i.e., in the middle of the ceiling assembly 4330a and not interfering with the structure of the ceiling lock device 4332a), thereby allowing the handle 4360a to 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 portions 4324a on the ceiling frame 4331a. As shown in FIG. 62F, when the ceiling frames 4331a are folded toward each other, the handle 4360a is in an upright position and is located between the folded first pivot segment 43311A and 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 height of the ceiling (see FIG. 62F, which shows the ceiling frame 4331a after the ceiling has been removed) when folded, and wider than the width of the ceiling.

[0347] 63A to 63D show a carrier 4400 having a short size, in which the carrier 4400 includes a case 4410, a bracket device 4420, and a ceiling assembly 4430. 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 shown with the ceiling assembly 4430 in a folded state. As shown in FIGS. 63A and 63B, the carrier 4400 may have two ceiling locking portions 4424, each corresponding to a ceiling locking device 4432 provided on a ceiling frame 4431. The specific configuration of the ceiling locking unit 4424 is similar to that of the ceiling locking unit 4324 having the long-sized carrier 4300, and therefore a 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. If the structure does not collide, the shorter-sized carrier 4400 may also be provided with a handle similar to that shown in Figures 62D and 62E, but a description thereof will be omitted here.

[0348] 63A and 63C, when the ceiling 4433 is attached to the ceiling frame 4431, the ceiling 4433 can shield the ceiling frame 4431 and the ceiling locking device 4432, thereby improving the aesthetics of the carrier 4400. Specifically, with further reference to FIGS. 63A and 63D, the lower edge of the ceiling 4433 may be respectively sleeved onto the first pivot segment 44311 and the second pivot segment 44312 of the ceiling frame 4431 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, thereby improving the connection stability between the ceiling 4433 and the ceiling frame 4431 and minimizing 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 button-type connecting devices that are 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 Velcro (registered trademark), a slide button structure, a hook and ring structure, a button structure, etc.

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

[0350] 64A to 64D, strap 4540 includes a belt main body 4541 and strap connection portions 4542 provided on both ends of belt main body 4541, and strap connection portions 4542 are interconnected with connection parts 4514 provided on opposite sides of case 4510. In one example, as shown in FIGS. 64C and 64D, strap connection portion 4542 of strap 4540 and connection part 4514 provided on case 4510 may be magnetic buckle assemblies that cooperate with each other, but the present disclosure is not limited thereto. For example, strap connection portion 4542 may be a hook, and may be used in combination with a D-shaped buckle link corresponding to case 4510. In other words, strap connection portion 4542 and connection part 4514 may be an assembly that can be connected to each other in any manner, such as by using a snap structure, a concave-convex structure, or a hook-ring structure. Also, in another embodiment, 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 location 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 and detachably connecting the first shelf 46331 and the second shelf 46332. Optionally, the first shelf 46331 and the second shelf 46332 have the same area. 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 on the outside of the case 4610 and surrounds the periphery of the ceiling 4633 and the periphery of the sheet fabric 4650 to detachably connect the ceiling 4633 and the sheet fabric 4650 sleeved on the outside of the case 4610. 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, so that the ceiling can be prevented from being completely opened if the first shelf 46331 and the second shelf 46332 are accidentally disconnected while the user grasps and lifts the carrier 4600. 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 detachable 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 the ceiling and the seat fabric connected thereto have been removed.

[0355] As shown in FIG. 66 , similar to the carrier 4600 in the above-described 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 is disposed between the first ceiling 47331 and the second ceiling 47332 and separably connects the first ceiling 47331 and the second ceiling 47332 to each other, and an opening defined by the ceiling connection assembly 47333 is offset from the center line. In another embodiment, two or more ceiling connection assemblies 47333 may be provided to allow the ceiling 4733 to open at different angles. Furthermore, similar to the ceiling connection assembly 46334 in the above-described embodiment, a ceiling connection assembly 47334 may be provided in this embodiment, and a 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 also provided with a fixed belt 47335 and a pull strap 47336. Similar to the fixed belt 46335 of the above-described embodiment, the fixed belt 47335 has one end fixedly connected to the first shelf 47331 and the other end detachably connected to the second shelf 47332, for example, by a buckle, to prevent the ceiling 4733 from opening unexpectedly. Both ends of the pull strap 47336 are fixed to the first shelf 47331, which has a larger area. In one example, the pull strap 47336 is fixed directly above the ceiling 4733, allowing the user to grasp it and lift the carrier 4700. Similarly, fabric can be sewn to the inner surfaces of the connection points between the first shelf 47331 and the pull strap 47336 at both ends to increase structural strength.

[0357] In this embodiment, the ceiling 4733 can be formed integrally 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 can be removed together with the lining sheet fabric 4750, leaving the removed carrier 4700 as shown in FIG. 67B. In one example, as shown in FIGS. 67A and 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 cooperating portions of a ceiling connection assembly 47334, for example, two cooperating portions of a fastener assembly. In one example, the seat fabric 4750 on the outside of the case 4710 is non-removable, although 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, and in this way, 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 the versatility of use.

[0358] 68A to 68D show a bracket device, a case, and a combination thereof according to one embodiment of the fourth aspect of the present disclosure. Specifically, Fig. 68A shows case 4810, Fig. 68B shows bracket device 4820, Fig. 68C shows a bottom perspective view of bracket device 4820 and case 4810 assembled together, and Fig. 68D shows a cross-sectional view taken 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 also 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., mounting space) formed by the bottom 4811 and the peripheral wall 4812 has an opening that is open 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 Figure 68C, there is shown a perspective schematic view of carrier 4800 assembled using case 4810 shown in Figure 68A and bracket device 4820 shown in Figure 68B. Note that the side wall of case 4810 shown in Figure 68C is covered with sheet fabric 4850 so that second bracket 4822 is not visible.

[0361] 68A to 68C, first bracket 4821 is coupled to case 4810, and is disposed adjacent to the open portion of case 4810, surrounding peripheral wall 4812 of case 4810 substantially horizontally. The two second brackets 4822 are each connected to the first bracket 4821 and are provided spaced 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 along the horizontal axis direction D42 of the case 4810 via the bottom 4811 of the case 4810, and the third bracket 4823 is located on the bottom 4811 of the case 4810 and is provided spaced apart 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. Furthermore, 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 horizontal portion, the two vertical portions being connected approximately vertically to the first bracket 4821, and the horizontal portion being connected approximately vertically to the fixing assembly 4825.

[0362] The third bracket 4823 also 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 annular, and 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. The structural reinforcing member 48233 is disposed between the two fixing assemblies 4825 in the vertical axis direction D41, and the distances between the two fixing assemblies 4825 and the structural reinforcing member 48233 are approximately the same, further enhancing the structural support strength of the third bracket 4823.

[0363] 68D , the securing assembly 4825 includes a guide member 48251 disposable in a plane surrounded by the engagement member 48231, and the securing 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, with the connecting rod 48232 sleeved 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] 68A and 68D, the fixing assembly 4825 further includes a bracket connecting member 48252 and a locking set. The bottom 4811 of the case 4810 includes a plurality of through-grooves 48111 (see FIG. 68A) that penetrate the bottom 4811 of the case 4810, each of which corresponds to the fixing assembly 4825. The locking set includes a locking member 48253a provided on the bracket connecting member 48252 and a locking fixing member 48253b that locks with the locking member 48253a. 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 that order, thereby firmly connecting the case 4810 and the bracket device 4820. Referring to FIG. 68E, there is shown a schematic plan 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 a long-size carrier 4800 (also referred to as a "long-size carrier") is attached to a frame 4800', the second brackets 4822 are located on both sides of the frame 4800' in the longitudinal axis direction D41 of the seat plate 4810'. In particular, 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] The configuration of the bracket device 4820 of this embodiment and its connection with the cases 4810 and 4810' can also be referenced to the bracket device 3120 and its case 3110 of the third embodiment of the present disclosure.

[0367] 69A to 69C show a bracket device, a case, and a combination of the two 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 previous embodiment, but its case 4910 (see Figure 69A) and bracket device 4920 (see Figure 69B) are similar to carrier 4800 in the previous embodiment, so we will omit the explanation and only describe the differences from carrier 4800 in the previous embodiment of the present disclosure, which has a longer size.

[0369] Specifically, because the size of the carrier 4900 in the longitudinal axis direction D41 is small, the engaging 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, connecting brackets 49234 may be provided at opposite ends of the engaging member 49231 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 connecting bracket 49234 is disposed midway between the opposite ends of the engaging member 49231. In another example, multiple connecting brackets 49234 may be provided at each end.

[0370] Referring to FIG. 69D, a schematic plan view of the connection between the bracket device 4920 and the frame 4900′ applied to the carrier 4900 according to the aforementioned embodiment of the present disclosure is shown. Referring to FIGS. 69A-69C and 69D, when a carrier 4900 having a shorter size (also referred to as a "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 positions where the second carrier 4922 is located are located within both side edges of the seat plate 4910′ along the longitudinal axis direction D41. Specifically, 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 also 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., the mounting space) by surrounding it. The case 41010 also has a plurality of through grooves 410111 that penetrate the bottom 41011 of the case 41010, and is used for fastening a case belt 41014 through the through grooves 410111. In one example, as shown in FIG. 70C , a box belt 41014 having a T-shaped structure with a vertical segment 410141 and a horizontal segment 410142 is provided on the bottom 41011 of the case 41010. Both ends of the horizontal segment 410142 (first end 41014a and second end 41014b constituting the box belt 41014) are fixed to 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 a 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 connecting structure for connecting a pet's pull (vest) or the like. In one example, two box belts 41014 are arranged symmetrically on the bottom 41011 of the case 41010. For example, a user can cooperate with the box belt 41014 via webbing (not shown) to connect a pet pull (such as a vest) to the case 41000. Specifically, both ends of the webbing may be provided with a connecting portion (e.g., a hook), where one end of the webbing is connected to the third end 41014c of one of the T-type box belts 41014 via a corresponding connecting member, and the other end is connected to a fixing ring of the pet pull, such as a webbing ring or a D-type ring on the vest, via a corresponding connecting member. Alternatively or alternatively, one end of the webbing may be connected to the third end 41014c of one T-type box belt 41014 via a corresponding connecting member, and the other end may pass through the fixing ring of the pet pull and be connected to the third end 41014c of another T-type box belt 41014 via a corresponding connecting member.However, the present disclosure is not limited thereto, and the webbing or other similar device can be connected in other ways between the box belt 41014 and the pet's pull. Such a T-shaped structure can provide two-point fastening at its first end 41014a and second end 41014b, allowing the box belt 41014 to provide a more stable force to connect and secure the pet's pull, etc., thereby increasing 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. The collision prevention device 41015 may have a single-layer structure or a multi-layer structure. If the collision prevention device 41015 has a single-layer structure, it may be made of, for example, inert memory cotton or other materials with a certain degree of shrinkage. If the collision prevention device 41015 has 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 inert memory cotton and a PE (polyethylene) layer, or a combination of other suitable materials. Optionally, the collision prevention device 41015 may be provided on at least one side of the case 41010, for example, on the side closest to the door when the case 41010 is placed on a 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 holes 41016 may be provided in the peripheral walls 41012 on the long side and / or short side of the case 41010. That is, the ventilation holes 41016 may be provided only in the peripheral walls 41012 on the long side of the case 41010, or only in the peripheral walls 41012 on the short side of the case 41010, or may be provided together in the peripheral walls 41012 on both the long side and short side of the case 41010. In one example, the collision prevention device 41015 may be provided with a recess 41015a for avoiding the ventilation holes 41016. For example, as shown in FIG. 70A, a collision prevention device 41015 and a vent hole 41016 can be provided together on the peripheral wall 41012 on the short side of the case 41010 (e.g., at least the side closer to the door), and a portion of the collision prevention device 41015 (i.e., the position corresponding to the vent hole 41016) can be narrower than other portions to form a recess 41015a. The recess 41015a is not limited to the above configuration and may have a hole structure, a perforated structure, or the like. The vent hole 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 if the box belt 41014 is not fixed using the through grooves 410111 on both sides, this reserved hole 410112 can be used to achieve single-point fixation.

[0375] To more clearly illustrate how the box belt 41014 is secured, reference is made to FIGS. 70D-70G. Specifically, FIG. 70D shows the bracket device 41020, which also shows a schematic representation of the box belt 41014 disposed thereon. FIGS. 70E and 70F show the bracket device 41020 at different angles. FIG. 70G shows the bracket device 41020, which also shows an exploded view of a portion of the securing assembly 41025 of the bracket device 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 the same structure as the above-described embodiment (e.g., 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 a distance from 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 70D to 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 grooves 410111 in the case 41010.

[0378] Specifically, as shown in FIGS. 70E to 70G, the fixing assembly 41025 includes a guide member 410251, which is located at the bottom of the fixing assembly 41025. In this example, the guide member 410251 may be disposed within 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 another material having a certain rigidity. Furthermore, as shown in FIG. 70G, the fixing assembly 41025 includes a bracket connecting member 410252 and a locking set 410253. The bracket connecting member 410252 passes through a through groove 410111 in 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 order to fix them together, thereby stably connecting the case 41010 and the bracket device 41020.

[0379] 70F and 70G, the fixing assembly 41025 may further include a box belt engaging portion 410254, which may be 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 this notch, thereby engaging with the box belt engaging portion 410254 while preventing the box belt 41014 from swinging. In one example, the box belt engaging portion 410254 may be integrally formed with the bracket connecting member 410252. The fixing assembly 41025 may also include a box belt fixing 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 fixing portion 410256 has a folded corner, i.e., an edge thereof is folded upward (e.g., the box belt fixing 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 fixing portion 410256 (e.g., by stitching), and the other end of the box belt 41014 can continue to extend upward through the box belt engaging portion 410254.

[0380] 70D to 70G, a longer carrier 41000 may have a structural reinforcing member 410233. The structural reinforcing member 410233 is disposed on the third bracket 41023 between the two fixing assemblies 41025 in the longitudinal axis direction D41, with the distance between the two fixing assemblies 41025 being approximately the same, 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 opposite ends in the longitudinal axis direction D41, and the connecting brackets 410234 may be drilled in the case 41010, and a bracket connecting member 410252 and a box belt engaging portion 410254 may be provided at the upper end 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 a ventilation 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 not be given here.

[0382] 71C and 71D show a carrier 41200 according to one 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, the above-mentioned embodiments of the present disclosure and the 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] A fifth aspect of the present disclosure also provides a carrier that can be stably fixed to a vehicle or mobility device when in use and can be folded and stored in the vehicle when not in use to reduce the space it occupies.

[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 , a 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., the mounting portion) includes a main body 5111 and a bottom support member 5112. The main body 5111 is removably fitted onto the bottom support member 5112 (i.e., as the peripheral wall of the case 5110) and forms, together with the bottom support member 5112, a storage space (i.e., a mounting space) for placing a pet. 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 storage space, and a lower surface of the bottom support member 5112 (i.e., a lower surface of the bottom) constitutes the bottom of the case 5110. The main body 5111 constitutes the four side surfaces and the top 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 that are 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 interlocking fasteners, but the present disclosure is not limited thereto and may be, for example, interlocking engagement structures, slide fastener structures, hook and loop fasteners, hooks, rings, etc., and optionally, a flexible connection method may be adopted. Alternatively, in another example, the main body 5111 and the bottom support member 5112 may be fixedly joined (e.g., sewn together) or integrally molded.

[0387] 72 and 73, a bracket assembly 5120 is used to secure the carrier 5100 to a mobile device such as a vehicle or 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 a corresponding engagement structure provided on the mobile device, as will be 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 generally corresponds vertically to the center of the case 5110. The bracket assembly 5120 (also referred to as the "bracket device") may have a structure similar to the third bracket 3123 (see Figures 32B and 32C) according to the third aspect of the present disclosure; for example, the engagement member 5121 of this embodiment may correspond to the engagement member 31231 shown in Figures 32B and 32C, and 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] The bracket assembly 5120 may also include four first connecting brackets 5122, which are attached to the engaging member 5121, connected to the bottom of the case 5110, and spaced apart from one another, for example, near the four corners of the bottom of the case 5110, to provide balanced and stable support for the case 5110. Furthermore, the four first connecting brackets 5122 may be provided symmetrically with respect to the longitudinal axis direction D51 and the lateral axis direction D52 of the carrier 5100 on opposite sides of the engaging member 5121 in the lateral direction. For example, as shown in FIG. 73As shown in the figure, the four first connecting brackets 5122 are symmetrically arranged on each of the 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 number of first connecting brackets 5122 is not limited to the above number. Optionally, in another example, only two first connecting brackets 5122 may be installed, and the two first connecting brackets 5122 may be installed 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 connecting brackets 5123, which are attached to both sides of the engaging 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 connecting brackets 5123 are shown in FIG. 2, the present disclosure is not limited to this and four, six, etc. may be provided. In other examples, the first connecting bracket 5122 and the second connecting 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 reinforcing member 5124 located at approximately the middle of the longitudinal axis direction D51 of the engaging member 5121. The central portion of the structural reinforcing 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 end portions, which gives the bracket device 5120 high impact resistance and makes it less likely to be deformed by force.

[0391] Here, the first connecting bracket 5122 and the second connecting bracket 5123 can also 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 leave 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 a perspective view of the main body 5111 shown in FIG. 72, FIG. 75 shows a perspective view of the side support member of the main body 5111 shown in FIG. 74, and FIG. 76 shows a perspective view of the upper support member of the main body 5111 shown in FIG. 74.

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

[0394] 74 and 75, the side support members 51111 can include a first sub-support member 51111a and a second sub-support member 51111b, each detachably 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, and the bottom edges 51111m of the first sub-support member 51111a and the second sub-support member 51111b are each detachably connected to corresponding edges of the bottom support member 5112, and the upper edges 51111n are detachably connected to both sides of the arched upper support member 51112.

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

[0396] Optionally, the side support members 51111 can be made of a material with a certain pressure-resistance capacity to prevent deformation during transportation, such as paperboard, plastic plate, or metal plate, but the present disclosure is not limited thereto.

[0397] 74 and 76, the upper support member 51112 is composed of three interconnected sheet-like members 51112a, 51112b, and 51112c, forming an arch shape. The three sheet-like members 51112a, 51112b, and 51112c can respectively form the top 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., the surfaces between the first sub-support member 51111a and the second sub-support member 51111b), and the second sheet-like member 51112b forms the top surface of the main body 5111. Optionally, all three sheet-like members 51112a, 51112b, 51112c may be made of a material having a certain pressure-resistance capacity to prevent deformation during transportation, such as paperboard, plastic plate, or metal plate, but 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 connecting structure (not shown for clarity) and are foldable relative to each other, while the second sheet-like member 51112b and the third sheet-like member 51112c are connected to each other by another connecting structure (see "51112f" in FIG. 76) and are foldable relative to each other, thereby allowing the first sheet-like member 51112a and the third sheet-like member 51112c to be folded inward relative to the second sheet-like member 51112b. In other words, the sheet-like members on both sides can be folded inward relative to the middle sheet-like member, thereby allowing the removed upper support member 51112 to be folded to make it smaller, further reducing the space required for storage and transportation costs. The above connecting structure and other connecting structures may be flexible connecting structures, such as slit fabrics, or rigid connecting structures. In one embodiment, the upper support member 51112 can be formed as a single unit (e.g., by sawing) using the above-described connection structure, i.e., the three sheet-like members 51112a, 51112b, and 51112c can be formed as a single unit. 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] 76, third connecting parts 51118a, 51118b are provided on two side edges of the upper support member 51112, respectively, which can cooperate with fourth connecting 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 connecting parts 51118a, 51118b are detachably connected to the fourth connecting 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 flexible 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-and-ring fittings, or 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 Figure 76, the third connecting parts 51118a, 51118b (e.g., fastener structures) on both sides of the upper support member 51112 may extend along the entire side edge of the upper support member 51112, and optionally, the third connecting parts 51118a, 51118b may be provided on each of the long sides of the upper support member 51112. Such a design allows the upper support member 51112 and the lateral support members 51111 to be completely closed, making the connection between them more reliable.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, allowing the case 5110 to be completely removed when the carrier is not in use, 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 users 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 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 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 can store the lateral support member 51111 and / or the upper support member 51112, 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 reconnected. This design has the advantages of easy operation, low cost, small storage space, and easy transportation.

[0401] 74 to 76, an openable and closable window cloth may be provided on any side of the main body 5111 to provide a window for a pet to enter and exit the case. Specifically, a window cloth 51111d may be provided on any of the side support members 51111 of the main body 5111. Additionally or alternatively, a window cloth 51112d may be provided on the upper support member 51112 of the main body 5111. For example, as shown in FIG. 75, each of the two side support members 51111 is provided with a window cloth 51111d. Furthermore, as shown in FIG. 74, for example, a window cloth 51112d may be provided on each surface near both ends of the upper support member 51112. These window cloths can be closed and opened by a zipper structure, and may be configured with a single zipper (the structure shown on the side support member 51111 in FIG. 75) or two zippers that open in opposite directions (as shown in FIG. 74).

[0402] 74, the window fabrics 51111d, 51112d may be soft fabric such as a web. However, it should be understood that the present disclosure is not limited thereto and the window fabrics 51111d, 51112d may be other forms of fabric or soft material. A retaining member 51112e may be provided on the top of the window fabric to keep the window fabric open.

[0403] The main body of the present disclosure is not limited to the above configuration, and for example, the side support members of the main 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] 77 and 78, in another embodiment, a 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 connected together via a connecting sheet 51111Ac (also referred to as a "connecting structure"). That is, the connecting sheet 51111Ac is integrally molded with the first sub-support member 51111Aa and the second sub-support member 51111Ab. The connecting 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, so that 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 sawn part. Optionally, the connecting sheet 51111Ac may be made of 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 of the case after contraction. 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 achieve a detachable connection.

[0406] Furthermore, in this embodiment, the upper support member 51112A may be detachably connected to the lateral support members 51111A via flexible connecting components (e.g., fastener structures). For example, the flexible connecting components may be provided on the edges of the upper support member 51112A, on the upper edge formed by the upper edges of the first and second sub-support members 51111Aa and 51111Ab and the upper edge of the connecting sheet 51111Ac (more specifically, extending over this entire edge), so that the upper support member 51112A can be completely closed to and completely separated from the lateral support members 51111A. Similarly, flexible connecting components may be provided on the bottom edge formed by the bottom edges of the first and second sub-support members 51111Aa and 51111Ab and the bottom edge of the connecting sheet 51111Ac, and cooperate with the flexible connecting components provided on the bottom support members.

[0407] In this embodiment, similar to the embodiment shown in Figs. 74...

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, a second bracket, and a third 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 of the mounting portion to the other side of the periphery of the mounting portion; the third bracket is provided below a bottom of the mounting portion and spaced apart from the bottom, and is used to fix the carrier to a moving device; the third bracket has an annular structural member; A carrier characterized by:

2. The bracket device further includes a fastening assembly; 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, 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 the 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 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; a through-groove at the bottom of the case, the second connecting bracket being connected to the third bracket and at least a portion of the second connecting bracket being located within the through-groove, and the bracket connecting member being at least a portion of the second connecting bracket being located within the second connecting bracket and abutting against the second connecting bracket; 11. 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 and fixed to the locking member.

12. The carrier of claim 11.

13. a recessed portion is formed in 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; 5. The carrier of claim 4.

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

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

18. a central portion of the structural reinforcement member being bent toward the bottom of the mounting portion and abutting against the bottom of the mounting 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-groove 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 and constitutes a third end of the box belt.

5. The carrier of claim 4.

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 the peripheral wall of the case.

5. The carrier of claim 4.

Images