Carrier

Abstract

Provided in the present disclosure is a carrier. The carrier comprises a box body and a ceiling assembly. The box body has an accommodating space. The ceiling assembly is pivoted to the box body or a support device arranged around the box body below the upper edge of the box body, and the ceiling assembly is placed above the box body to cover the accommodating space.

Description

[0001] The present disclosure relates to a vehicle, and more particularly, to a vehicle with a roof assembly, as well as a vehicle including a locking structure and an unlocking structure. In recent years, more and more people are using pet-carrying vehicles, such as cots and boxes, when traveling with their pets. To facilitate use in various weather conditions and environments, some vehicles are equipped with roofs. However, such roofs often have complex structures and are inconvenient to fold. Furthermore, these roofs can hinder users from removing their pets from the vehicle. Furthermore, in the pet industry, cots and boxes are common pet-carrying vehicles. During use, a cot or box can be locked to a device, such as a base or cart, using a locking structure for placement, and can be unlocked from the base or cart for transfer. Therefore, a locking structure and a corresponding unlocking structure are required between the cot or box and the base. Existing unlocking members are typically located on the base, which can be low and difficult to reach, forcing users to bend over to operate them. Moreover, the location of some unlocking structures is not obvious enough, making it inconvenient for users to find and operate. Therefore, there is a need to provide a product in which an unlocking member is provided on the sleeping cot, particularly in a location on the sleeping cot that is easy to find and operate. SUMMARY OF THE INVENTION The present disclosure provides a vehicle to address at least one of the above-mentioned technical problems. The present disclosure provides a vehicle. The vehicle comprises: a box having a storage space; a ceiling assembly pivotally connected to the box or a bracket device disposed around the box, with the pivotal position located below the upper edge of the box, and the ceiling assembly is disposed above the box to cover the storage space. In one embodiment, the ceiling assembly comprises: a ceiling; and a ceiling frame connected to the ceiling to support the ceiling, wherein the ceiling frame is pivotally connected to the box so that the ceiling can be expanded or folded relative to the box. In one embodiment, the roof includes a first canopy portion and a second canopy portion. The first canopy portion has a first edge and a second edge. The first edge is the edge of the first canopy portion that engages the perimeter of the box when the first canopy portion is deployed, while the second edge is the edge of the first canopy portion that is away from the box when the first canopy portion is deployed. The second canopy portion has a first edge and a second edge. The first edge is the edge of the second canopy portion that engages the perimeter of the box when the second canopy portion is deployed, while the first edge is the edge of the first canopy portion that is away from the box when the first canopy portion is deployed. In one embodiment, when the first canopy portion is deployed, the first edge and the second edge are substantially perpendicular to each other. When the second canopy portion is deployed, the second edge and the second edge are substantially perpendicular to each other.In one embodiment, when both the first and second shed sections are deployed, the first edge of the first shed section and the first edge of the first shed section join together to form the entire roof. In one embodiment, the roof frame includes a first frame and a second frame, each pivotally connected to the housing and capable of pivoting toward or away from each other. The first frame is connected to between the first and second edges of the first shed section, and the second frame is connected to one of the first and first edges of the second shed section, enabling the first and second shed sections to be opened or closed relative to the housing. In one embodiment, the first frame is connected to the second edge of the first shed section, and the second frame is connected to the first edge of the first shed section. When the roof is deployed, the first and second frames pivot toward each other, allowing the first and second shed sections to join and fully shield the accommodating space. When the roof is fully retracted, the first and second frames pivot away from each other, allowing the first and second shed sections to fold. In one embodiment, when the roof is fully extended, the first frame and the second frame are approximately parallel to each other and approximately perpendicular to the box. When the roof is fully retracted, the first frame and the second frame are approximately horizontal. In one embodiment, the first edge of the first canopy portion is fixedly connected to the box, and the first edge of the second canopy portion is fixedly connected to the box. In one embodiment, the first frame is connected to the first edge of the first canopy portion, and the second frame is connected to the first edge of the second canopy portion. When the roof is extended, the first frame and the second frame pivot away from each other so that the first edge of the first canopy portion and the first edge of the second canopy portion respectively engage the box, completely shielding the storage space. When the roof is fully retracted, the first frame and the second frame pivot toward each other so that the first canopy portion and the second canopy portion are retracted. In one embodiment, when the roof is extended, the first frame and the second frame form a substantially horizontal frame. When the roof is fully retracted, the first frame and the second frame are approximately horizontal and adjacent. In one embodiment, the second edge of the first canopy portion and the second edge of the second canopy portion are fixedly connected. A carrier according to the present application includes: a base; an interior cavity; and a roof unit operably coupled to the base, the roof unit including an openable roof, wherein the openable roof at least partially defines the interior cavity. In one embodiment, the carrier further includes sidewalls fixed to the base and partially defining the interior cavity.In one embodiment, the sidewalls extend upward around the entire perimeter of the base. In one embodiment, the openable roof is removably coupled to the base. In one embodiment, each roof includes a latch for connecting the roof to the base. In one embodiment, the latch includes a button actuator. In one embodiment, the roof unit includes a roof bow movable relative to the base between a first position and a second position. When the roof bow is in the first position, the roof unit is closed, and when the roof bow is in the first position, the roof unit is open. In one embodiment, the first position is approximately 180 degrees from the first position. In one embodiment, the second position is approximately 90 degrees from the first position. In one embodiment, the vehicle further includes a second roof bow, to which the first end of the openable roof is connected, and to which the second end of the openable roof is connected. In one embodiment, the roof bow and the second roof bow are independently movable. In one embodiment, the roof unit further includes a locking mechanism operable to retain the roof bow in the first position. In one embodiment, the locking mechanism is a magnetic latch. In one embodiment, the roof unit further includes one or more support bows operably coupled to the openable roof. In one embodiment, the vehicle further includes a first roof unit coupleable to the base, the first roof unit having a second roof that at least partially defines the interior cavity. In one embodiment, the roof unit and the second roof unit are simultaneously removable from the base. In one embodiment, the vehicle further includes a center panel positioned between the openable roof and the second roof, the center panel being fixed relative to the base. In one embodiment, the vehicle further includes a retaining device proximate the center panel, the retaining device being configured to retain the openable roof in the open position. In one embodiment, the vehicle further includes at least one rigid door latch connector disposed at the base, the at least one rigid door latch connector being capable of coupling to at least one seat anchor of a vehicle seat. A vehicle according to the present application includes at least one roof unit, the roof unit comprising a roof frame, a roof movable relative to the roof frame, and a roof bow. The roof bow is connected to the roof and disposed on a first portion of the vehicle, and the roof frame is mounted on a second portion of the vehicle and located inwardly of the second portion. In one embodiment, the first and second portions of the vehicle are detachably disposed.In one embodiment, the second portion includes a base and sidewalls, the sidewalls being fixed to the base and extending upward around the perimeter of the second portion, and the roof frame being disposed inside the sidewalls. In one embodiment, the roof frame is lower than the upper edges of the sidewalls. In one embodiment, the roof bow is movable relative to the roof frame between a first position and a second position. When the roof bow is in the first position, the roof unit is closed, and when the roof bow is in the second position, the roof unit is open. In one embodiment, when the roof bow is in the first position, the roof bow is located inside the vehicle. In one embodiment, the roof bow is located inside the roof; and / or a portion of the roof bow extends beyond the edge of the roof. In one embodiment, when the ceiling bow is in the first position, the ceiling bow is located inside the sidewalls and inside the ceiling, and is obscured by the sidewalls and the ceiling. In another embodiment, when the ceiling bow is in the first position, the ceiling bow is at least partially located inside the first portion of the carrier. A carrier according to the present application includes: at least one engagement structure capable of switching between a locked state and an unlocked state; at least one unlocking structure located at a different position on the carrier than the engagement structure; and at least one connector connected to the engagement structure and the unlocking structure, the unlocking structure being operable to switch the engagement structure to the unlocked state via the connector. In one embodiment, the carrier can be snapped onto a base having a base rod, and the engagement structure can be snapped onto the base rod to be in the locked state. In one embodiment, the carrier is provided with a locking rod at the bottom, forming a ring along the circumference of the carrier. The base is provided with a base locking groove, into which the locking rod can be locked to secure the carrier to the base. In one embodiment, the platform structure includes a mounting base, which is mounted to the locking rod. Two mounting holes are provided on either side of the mounting base, and the locking rod is inserted into the mounting holes on either side of the base to secure the carrier. In one embodiment, the locking structure includes a first locking structure and a second locking structure symmetrically arranged in the longitudinal direction. The unlocking structure includes a first unlocking structure, which is connected to the first and second locking structures respectively via two connecting members and can be operated to simultaneously unlock the first and second locking structures.In one embodiment, the engaging structure further comprises a first engaging structure and a fourth engaging structure symmetrically arranged along the longitudinal direction; and the unlocking structure further comprises a second unlocking structure, the second unlocking structure being connected to the third engaging structure and the fourth engaging structure, respectively, via two connecting members, and operable to simultaneously unlock the third and fourth engaging structures. In one embodiment, the first engaging structure, the second engaging structure, and the first unlocking structure are located on one lateral side of the carrier, while the third engaging structure, the fourth engaging structure, and the second unlocking structure are located on the other lateral side of the carrier. In one embodiment, the carrier comprises: a housing; a first support tube adjacent to the top surface of the housing and surrounding the sides of the housing; two second support tubes arranged transversely along the housing, each second support tube being U-shaped, connected to both sides of the first support tube, and surrounding the bottom surface of the housing. In one embodiment, the engaging structure is disposed below the second support tube; the unlocking structure is disposed on the outside of the first support tube; and the connecting member extends along the interior of the first and second support tubes. In one embodiment, the engaging structure includes: a mounting member; a engaging hook pivotally connected to the mounting member; a first pin linearly movably disposed in the mounting member and inserted into a sliding groove of the engaging hook, such that linear movement of the first pin drives the engaging hook to swing between a locked position and an unlocked position; and a first elastic member biasing the engaging hook toward the locked position. In one embodiment, the mounting member has a hollow structure, the engaging hook is received in the mounting member, and the mounting member includes: a rotation axis hole extending transversely through the mounting member; the engaging structure includes a rotation axis disposed in the rotation axis hole, the engaging hook rotates about the rotation axis, and the first elastic member is disposed around the rotation axis; a guide hole extending transversely through the mounting member and being a vertically extending elongated hole, the first pin being disposed in the guide hole; and an engaging hole extending transversely through the mounting member and open toward the bottom surface of the mounting member, the base rod of the base being received in the engaging hole; the engaging hook is provided with a hook recess capable of engaging with the base rod, and when the engaging hook is engaged with the base rod to be in the locked position, the hook recess corresponds to the position of the engaging hole. In one embodiment, the connecting member includes a first end connected to the engaging structure, the first end being sleeved with the second pin to drive linear movement of the second pin.In one embodiment, the locking structure further includes a mounting seat, which is sleeved on the outside of the mounting member and includes a K-lock slot located on the bottom surface of the mounting seat. The K-lock hole of the mounting member communicates with the K-lock slot and faces the outside of the K-lock structure through the K-lock slot. In one embodiment, the unlocking structure includes an operating member operable from the outside of the carrier to vertically move between an initial state and a pressed state. When the operating member moves to the pressed state, it moves the locking hook to the unlocked position via the connecting member, and the operating member includes a vertically extending operating member slot; a third pin fixed to the carrier and inserted into the operating member slot to guide the vertical movement of the operating member; and a second elastic member to bias the operating member toward the initial state. In one embodiment, the unlocking structure further includes: at least one second pin linearly movably disposed in the unlocking structure; at least one oblique slot extending diagonally is defined in the operating member, and the second pins are respectively inserted into the oblique slots; the connecting member includes a second end connected to the unlocking structure, the second end being sleeved on the second pin; when the operating member is moved to the pressed position, the oblique slot in the operating member drives the second pin to linearly move, thereby pulling the connecting member. In one embodiment, the carrier is a pet sleeping cot. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings are included herein to provide a further understanding of the present invention and are incorporated into and constitute a part of this specification. They illustrate embodiments of the present invention and, together with the following description, serve to illustrate the concepts of the present invention. FIG1 is a perspective view of a carrier according to one embodiment of the present disclosure. FIG2 is a front view of the carrier shown in FIG1. ​​FIG3 and FIG4 are perspective views of the carrier shown in FIG1 in a half-closed position, respectively. FIG5 is a perspective view of the carrier shown in FIG1 in a fully opened position. FIG6 is a perspective view of a carrier according to another embodiment of the present disclosure. Figure 7 shows a front view of the carrier shown in Figure 6. Figure 8 shows another perspective view of the carrier shown in Figure 6, with the roof removed. Figure 9 shows a perspective view of the carrier shown in Figure 8 after the seat cloth is removed. Figure 10 shows a partially exploded perspective view of the carrier shown in Figure 9. Figures 11 and 12 respectively show perspective views of the carrier shown in Figure 6 in a half-cover state. Figure 13 shows a perspective view of the carrier shown in Figure 6 in a fully open state. Figure 14 shows a front view of the carrier shown in Figure 6 in another fully open state. Figure 15 shows a perspective view of the carrier shown in Figure 14. Figure 16 is a perspective view of a pet carrier according to one embodiment, with its roof in a closed state. Figure 17 is a perspective view of the pet carrier shown in Figure 16 according to one embodiment, with its roof in an open state.Figure 18A is a front perspective view of the pet carrier shown in Figure 16 , according to one embodiment, with the roof shown as transparent. Figure 18B is another front perspective view of the pet carrier shown in Figure 16 , according to one embodiment, with the roof shown as transparent. Figures 19A, 19B, and 19C are front views of the pet carrier shown in Figure 18A , showing the closed, partially open, and fully open positions, respectively, according to one embodiment. Figure 20A is a perspective view of a locking mechanism in a disengaged position, according to one embodiment. Figure 20B is a perspective view of a locking mechanism in an engaged position, according to one embodiment. Figure 21 is a front view of the pet carrier shown in Figure 16 , with the roof partially disengaged, according to one embodiment. Figure 22A is a perspective view of the pet carrier with multiple roofs in a closed position, according to one embodiment. Figure 22B is a front view of the pet carrier with multiple roofs in a closed position. Figure 23 is a perspective view of the pet carrier with multiple roofs in an open position, according to one embodiment. Figure 24A is a perspective view of the pet carrier shown in Figure 16 according to one embodiment, with the roof shown as transparent. Figure 24B is a front view of the pet carrier shown in Figure 6 according to one embodiment, with the roof shown as transparent. Figures 25A, 25B, and 25C are front views of the pet carrier shown in Figure 22B according to one embodiment, showing the pet carrier in a partially open state, another partially open state, and a fully open state, respectively. Figure 26 is a front view of the pet carrier shown in Figure 22B according to one embodiment, with the roof separated from the base. Figure 27 is a front view of a pet carrier according to one embodiment. Figure 28 is a perspective view of the carrier and base according to the present application in a coupled state. Figure 29 is a perspective view of the carrier and base in a separated state. Figure 30 is an enlarged view of the framed portion of Figure 29. Figure 31 is a perspective view of the base according to the present application, with the outer cover removed to illustrate the internal structure. Figure 32 is a perspective view of the carrier and stroller according to the present application in a coupled state. FIG33 is a perspective view of the carrier and cart in a separated state. FIG34 to FIG36 are perspective views of the carrier from different angles. FIG37 is a partially enlarged view of the frame of FIG36. FIG38 is a perspective view of the carrier, showing the engaging structure in an exploded state. FIG39 is a partially enlarged view of the frame of FIG38. FIG40 is a side cross-sectional view of the carrier and base. FIG41A is a partially enlarged view of the frame of FIG40, showing the engaging structure in a locked state. FIG41B shows the engaging structure in an unlocked state. FIG42 is a side view of the carrier, showing the unlocking structure in a cutaway state.FIG43A is a partial enlarged view of the frame of FIG42, showing the unlocking structure in the initial state, and FIG43B shows the unlocking structure in the pressed state. FIG44 is a perspective view of the connector according to the present application. FIG44 is a perspective view of the connector according to the present application.

[0002] 100, 200 vehicles

[0003] 110, 210 cabinet

[0004] 111, 211 Body 112, 212 Peripheral wall

[0005] 113, 213 storage space

[0006] 114, 214 upper edge 120, 220 bracket device 221 first bracket

[0007] 222 First bracket 223 Third bracket 1231, 2231 Engaging member 225 Mounting seat 2251 First mounting portion 2252 Second mounting portion

[0008] 130, 230 ceiling components

[0009] 131, 231 ceiling frame

[0010] 1311, 2311 first frame

[0011] 1312, 2312 Second Frame

[0012] 1313, 2313 first pivot portion

[0013] 1314, 2314 second pivot portion

[0014] 133, 233 ceiling

[0015] 1331, 2331 first shelf portion 1331a, 2331a first edge of the first shelf portion 1331b, 2331b second edge of the first shelf portion

[0016] 1332, 2332 second shed portion 1332a, 2332a first edge of the second shed portion 1332b. 2332b second edge of the second shed portion

[0017] 134, 234 connecting belt

[0018] 1341, 2341 first end

[0019] 1342, 2342 second end

[0020] 135, 235 fixings

[0021] 1351, 2351 female connector

[0022] 1352, 2352 Male connector 150, 250 Seat fabric 260 Handle

[0023] D2 length direction

[0024] DI, D3 width direction

[0025] L2600 Pet Carrier L26 Front L28 Rear

[0026] L2602 Part 1L2604 Part 1

[0027] L2606 base

[0028] L2607 side wall

[0029] L2610 ceiling unit

[0030] L2612 ceiling frame

[0031] L2614 Ceiling Bow

[0032] L2616 ceiling

[0033] L2618 first positioning end

[0034] L2620 Second positioning end

[0035] L2622 First frame part

[0036] L2624 Second frame part

[0037] L2626 First End

[0038] L2628 Second end

[0039] L2630 structural support

[0040] L2632, L2632a, L2632b Part 1

[0041] L2634 Part 1

[0042] L2640 Connector

[0043] L2642 Part 1, Buckle

[0044] L2644 Part 1, Latch Plate

[0045] L2700 Pet Carrier

[0046] L2702 Part 1

[0047] L2704 Part 2

[0048] L2706 base

[0049] L2707 side wall

[0050] L2710 First roof unit

[0051] L2712 Second roof unit

[0052] L2714a First roof bow

[0053] L2714b Second roof bow

[0054] L2716a, L2716b ceiling frame

[0055] L2718a, L2718b, L2720a, L2720b Mounting end

[0056] L2722 Center Panel

[0057] L2724 Single Roof

[0058] L2724a Section: Ceiling

[0059] L2724b First Roof

[0060] L2726, L2726a, L2726b first end

[0061] L2728, L2728a, L2728b Second end

[0062] L2730a First structural support or support bow

[0063] L2730b Support L2740 Connector

[0064] L2742 Part 1, Buckle

[0065] L2744 Part 2, Latch Plate

[0066] L30 left side

[0067] L32 right side

[0068] M320 Pet Carrier

[0069] M321 closed side

[0070] M370 ceiling

[0071] N100 snap-fit ​​structure

[0072] N101 First ^ Composite Structure

[0073] N102 Second engagement structure

[0074] N103 Second locking structure

[0075] N104 Fourth locking structure

[0076] N110 mounting bracket

[0077] N111 Rotating shaft hole

[0078] N112 guide hole

[0079] N113 engagement hole

[0080] N120 snap hook

[0081] N121 pivot end

[0082] N122 Hook

[0083] N123 Slide trough

[0084] N125 hook recess

[0085] N130 rotary axis

[0086] N 140 first pin

[0087] N150 first elastic part

[0088] N160 Mount

[0089] N161 mounting hole

[0090] N162 cushion

[0091] N163 snap-in slot

[0092] N164 side hole

[0093] N200 unlocking structure

[0094] N201: Unlocking Structure

[0095] N202 Second unlocking structure

[0096] N210 operating parts

[0097] N211 operating element slot

[0098] N212 chute

[0099] N220 second pin

[0100] N230 Second elastic member N240 Third pin

[0101] N300 connector

[0102] N310 cable

[0103] N320 Cable Cover

[0104] N33O first end

[0105] N340 first end

[0106] N400 vehicle

[0107] N410 card table pole

[0108] N420 cabinet

[0109] N430 first support tube

[0110] N440 second support tube

[0111] N500 base

[0112] N510 base rod

[0113] N520 cover

[0114] N53O main parts

[0115] N540 base snap-in slot

[0116] N600 cart

[0117] N610 Cart Carrier Slot Specific Implementation Below, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. While the present disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof are illustrated by way of example in the accompanying drawings. However, the present disclosure should not be construed as limited to the embodiments set forth herein; rather, the present disclosure is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure. The present disclosure will be described in detail with reference to the accompanying drawings. Referring to Figures 1 to 5 , Figure 1 shows a perspective view of a carrier 100 according to an embodiment of the present disclosure, wherein the carrier 100 is in a fully enclosed position; Figure 2 shows a front view of the carrier 100 shown in Figure 1 ; Figures 3 and 4 respectively show perspective views of the carrier 100 shown in Figure 1 in a half-enclosed position; and Figure 5 shows a perspective view of the carrier 100 shown in Figure 1 in a fully enclosed position. As shown in Figures 1 to 3 , the carrier 100 may include a housing 110, a bracket assembly 120, and a roof assembly 130. The case 110 has a bottom and a peripheral wall 112 connected to the bottom, forming a storage space 113 for a pet. The support device 120 is configured such that at least a portion thereof is positioned below the case 110 and supports the case 110. In one example, as shown in Figures 1 and 2, the support device 120 includes a latch 1231 spaced apart from the case 110 below the case 110. Specifically, the latch 1231 may be an annular structure. Furthermore, the latch 1231 may cooperate with a fixing seat assembly and / or a fixing strap assembly to secure the carrier 100 to a vehicle seat (not shown). In one example, a seat fabric 150 is at least partially enclosed around the carrier 100. Specifically, referring to Figures 1 and 3, the case 110 may include a body 111 and a seat fabric 150 covering the exterior of the body 111. In this embodiment, the seat fabric 150 at least partially covers the housing 110, and the engaging member 1231 of the bracket assembly 120 is located outside the seat fabric 150. In another embodiment, the seat fabric 150 may also cover a portion of the bracket assembly 120, with the engaging member 1231 still located outside the seat fabric 150, but the present disclosure is not limited thereto. In one example, the body 111 may be a foam material, such as expanded polypropylene (EPP), expanded polyethylene (EPE), or expanded polyethylene terephthalate (EPO). Referring to Figures 1 and 2, the ceiling assembly 130 may include a ceiling frame 131 and a ceiling 133. The ceiling 133 is positioned above the housing 110 to cover the accommodating space 113 of the housing 110 (see Figure 3).The ceiling frame 131 is connected to and supports the ceiling 133. The ceiling frame 131 is pivotally connected to the housing 110, allowing the ceiling 133 to be expanded or collapsed relative to the housing 110. In other embodiments, the bracket assembly 120 may further include a first bracket surrounding the housing 110 (not shown in the figure, obscured by the seat fabric 150), and the ceiling frame 131 may be pivotally connected to the first bracket. Alternatively, the first bracket may be positioned near the opening above the housing 110, but the present disclosure is not limited thereto. In this embodiment, the ceiling frame 131 may include a first frame 1311 and a second frame 1312. The first frame 1311 and the second frame 1312 are each pivotally connected to the housing 110 and can pivot relative to each other to move closer or further away. 3 to 5 , the first frame 1311 can pivot relative to the case 110 between a first position and a second position, wherein the first frame 1311 is substantially parallel to the upper edge 114 of the case 110 when pivoted to its first position, and is substantially perpendicular to the upper edge 114 of the case 110 when pivoted to its second position. Correspondingly, the second frame 1312 can also pivot relative to the case 110 between a first position and a second position, wherein the second frame 1312 is substantially parallel to the upper edge 114 of the case 110 when pivoted to its first position, and is substantially perpendicular to the upper edge 114 of the case 110 when pivoted to its second position. That is, when the first frame 1311 and the second frame 1312 are both in their respective second positions, they can be considered to be furthest apart from each other; and when the first frame 1311 and the second frame 1312 are in their respective first positions, The two can be closest to each other. Of course, when the first frame 1311 or the first frame 1312 is pivoted independently, if there is no interference, the first frame 1311 or the second frame 1312 can also pivot to other positions beyond its second position, such as continuing to pivot beyond the second position by a certain angle, etc. This is not limited in this disclosure. Specifically, as shown in Figures 1, 3, and 4, the two ends of the first frame 1311 can be pivotally connected to the two sides of the box body 110 via first pivoting portions 1313, and the two ends of the second frame 1312 can be pivotally connected to the two sides of the box body 110 via second pivoting portions 1314. For example, the two ends of the first frame 1311 can be respectively disposed on the two sides of the box body 110 along the width direction D1 (i.e., two opposing long sides), and the two ends of the second frame 1312 can also be respectively disposed on the two sides of the box body 110 along the width direction D1.As shown in Figures 1 and 2, the first frame 1311 and the second frame 1312 are positioned adjacent to each other. That is, the first pivot portion 1313 and the second pivot portion 1314 are adjacent to each other on the same side. Referring to Figures 3 to 5, in this embodiment, the first pivot portion 1313 and the second pivot portion 1314 can be positioned outside the peripheral wall 112 of the housing 110 and positioned above (i.e., below) the upper edge 114 of the housing 110. In other words, when the first frame 1311 and / or the second frame 1312 of the ceiling frame 131 are pivoted to the first position, they are positioned below the upper edge 114 of the housing 110. The first frame 1311 and the second frame 1312 can each have a U-shaped structure, but the present disclosure is not limited thereto. Other shapes are also acceptable, as long as they can wrap around the housing 110 when positioned substantially parallel to the upper edge of the housing 110. In one embodiment, as shown in Figures 1 to 4 , the roof 133 includes a first roof portion 1331 and a second roof portion 1332. The first roof portion 1331 and the second roof portion 1332 can be respectively deployed or retracted relative to the box body 110. For example, the roof 133 in this embodiment has three operating states: a fully covered state, a partially covered state, and a fully open state. As shown in Figure 1 , when both the first roof portion 1331 and the second roof portion 1332 are deployed, i.e., when the roof 133 is fully extended, the roof 133 is in the fully covered state. As shown in Figures 3 and 4 , when one of the first roof portion 1331 and the second roof portion 1332 is deployed and the other is retracted, the roof 133 is in the partially covered state, exposing at least a portion of the accommodating space 113 of the carrier 100 to the outside, for example, half of the accommodating space 113 is exposed. As shown in FIG5 , when both the first canopy portion 1331 and the second canopy portion 1332 are folded, that is, when the roof 133 is completely folded, the roof 133 is in a fully open position, fully exposing the accommodating space 113 of the carrier 100. Typically, the user may use the fully covered position during transportation of the carrier 100 to better protect the pet in the carrier 100. The half covered position may be used when the user needs to carry the pet in or out of the carrier 100. The fully open position is the position in which the case 100 is packaged at the factory. In this position, the case 100 has a relatively small volume and is therefore suitable for storing the pet when the case 100 is not in use.In this embodiment, as shown in Figures 2 to 4 , the first shelf portion 1331 has a first edge 1331a and a second edge 1331b. The first edge 1331a is the edge that engages the perimeter of the box 110 when the first shelf portion 1331 is deployed, while the second edge 1331b is the edge that is away from the box 110 when the first shelf portion 1331 is deployed. Correspondingly, the second shelf portion 1332 has a first edge 1332a and a second edge 1332b. The first edge 1332a is the edge that engages the perimeter of the box 110 when the second shelf portion 1332 is deployed, while the second edge 1332b is the edge that is away from the box 110 when the second shelf portion 1332 is deployed. As shown in Figure 2 , when the first shelf portion 1331 is deployed, the first edge 1331a and the second edge 1331b of the first shelf portion 1331 are substantially perpendicular to each other. Accordingly, when the first shed 1332 is deployed, the first edge 1332a and the second edge 1332b of the first shed 1332 are substantially perpendicular to each other. When both the first shed 1331 and the second shed 1332 are deployed, the second edge 1331b of the first shed 1331 and the second edge 1332b of the second shed 1332 join to form the entire ceiling 133. In one specific example, the first frame 1311 is connected to one of the first edge 1331a and the first edge 1331b of the first shed 1331, and the first frame 1312 is connected to one of the first edge 1332a and the first edge 1332b of the first shed 1332, so that the first shed 1331 and the second shed 1332 can be deployed or collapsed relative to the housing 110. In this embodiment, as shown in Figures 2 to 4 , the first frame 1311 is connected to the second edge 1331b of the first canopy 1331, and the second frame 1312 is connected to the second edge 1332b of the second canopy 1332. When the canopy 133 is deployed, as shown in Figures 1 and 2 , the first frame 1311 and the second frame 1312 pivot relative to each other and approach each other, so that the first canopy 1331 and the second canopy 1332 are brought into engagement with each other. For example, the second edge 1331b of the first canopy 1331 and the second edge 1332b of the second canopy 1332 are engaged, thereby completely shielding the accommodating space 113. At this point, the first frame 1311 and the second frame 1312 are substantially parallel to each other and substantially perpendicular to the housing 110 (i.e., both are in the second position).As shown in Figures 3 and 4 , when the roof 133 is opened to a half-cover state, that is, when the first canopy portion 1331 or the second canopy portion 1332 is folded, one of the first frame 1311 and the second frame 1312 pivots away from the other, thereby causing the corresponding first canopy portion 1331 or the second canopy portion 1332 to fold. When the roof 133 is in the half-cover state, one of the first frame 1311 and the second frame 1312 is in its first position, while the other is in its second position. As shown in FIG5 , when the roof 133 needs to be fully folded, the first frame 1311 and the second frame 1312 pivot away from each other, causing the second and first shed portions 1331, 1332 to fold until the second and first frames 1311, 1312 are both approximately horizontal (i.e., both located in the first position), forming a substantially horizontal frame surrounding the case 110. This allows the roof 133 (including the first and second shed portions 1331, 1332) to be fully folded, thereby fully exposing the accommodating space 113. As shown in FIG3 through FIG5 , when the first and / or second shed portions 1331, 1332 are folded, they and the corresponding first and / or second frames 1311, 1312 are located below the upper edge 114 of the case 110, preventing interference with a user's movement when carrying a pet in or out. Optionally, the first edge 1331a of the first shelf 1331 can be non-detachably connected to the box 110, and the first edge 1332a of the second shelf 1332 can be non-detachably connected to the box 110. For example, as shown in Figures 2 to 4 , the first edge 1331a of the first shelf 1331 and the second edge 1332a of the second shelf 1332 can be fixedly connected to the seat fabric 150 of the box 110, for example, by sewing. However, the present disclosure is not limited to this embodiment, and other methods can also be used to achieve fixed connection. That is, in this embodiment, regardless of whether the first shelf 1331 and / or the second shelf 1332 are unfolded or folded, the first edge 1331a of the first shelf 1331 and the first edge 1332a of the first shelf 1332 remain fixedly connected to the seat fabric 150 and are non-detachable. As shown in Figures 1 and 2 , the carrier 100 can also include a connecting strap 134 and a fixing member 135. The connecting belt 134 has a first end 1341 and a second end 1342 , and one of the first end 1341 and the second end 1342 is fixedly connected to the first shelf portion 1331 (or the second shelf portion 1332 ) of the ceiling 133 .The fixing member 135 includes a female connector 1351 and a male connector 1352 that are detachably connected to each other. These fixing members are respectively disposed on the other of the first end 1341 or the second end 1342 of the connecting strap 134 and the second canopy portion 1332 (or the first canopy portion 1331) of the ceiling 133, and are used to maintain the first canopy portion 1331 and the second canopy portion 1332 in engagement with each other. For example, in this embodiment, the first end 1341 of the connecting strap 134 may be fixedly connected to the first canopy portion 1331 by sewing, etc., the female connector 1351 is disposed on the second end 1342 of the connecting strap 134, and the male connector 1352 is correspondingly disposed on the second canopy portion 1332. When the first and second shed portions 1331 and 1332 are engaged with each other (i.e., in a cover-like state), the female connector 1351 and male connector 1352 of the fixing member 135 can cooperate with each other to connect and secure the first and second shed portions 1331 and 1332, thereby preventing the first and second shed portions 1331 and 1332 from separating during movement of the case 110. In one example, as shown in FIG1 , the connecting strap 134 can be formed from a single connecting webbing, which passes through the female connector 1351 of the fixing member 135 and is secured to the ceiling 133 at both ends. Furthermore, the fixing member 135 can employ a magnetic buckle structure, i.e., the female connector 1351 and male connector 1352 can be mating female and male buckles. However, the present disclosure is not limited thereto; the fixing member 135 can also employ zippers, hook and loop fasteners (e.g., Velcro), concealed buckles, insert buckles, hook and loop fasteners, etc. Referring to Figures 6 to 15 , a vehicle 200 according to another embodiment of the present disclosure is shown. Specifically, Figure 6 shows a perspective view of the vehicle 200 according to another embodiment of the present disclosure, wherein the vehicle 200 is in a fully covered state; Figure 7 shows a front view of the vehicle 200 shown in Figure 6 ; Figure 8 shows another perspective view of the vehicle 200 shown in Figure 6 , with the roof 230 removed to illustrate the specific structure of the roof frame 231; Figure 9 shows a perspective view of the vehicle 200 shown in Figure 8 after the seat fabric 250 is removed; Figure 10 shows a partially exploded perspective view of the vehicle 200 shown in Figure 9 ; Figures 11 and 12 respectively show perspective views of the vehicle 200 shown in Figure 6 in a half-covered state; Figure 13 shows a perspective view of the vehicle 200 shown in Figure 6 in an open state; and Figures 14 and 15 show a front view and a perspective view of the vehicle 200 shown in Figure 6 in another fully opened state. As shown in Figures 6 to 9, the tool 200 may include a box body 210, a bracket device 220 and a ceiling assembly 230.The box 210 has a bottom and a peripheral wall 212 extending around the bottom, forming a storage space 213 for a pet. The support assembly 220 is configured such that at least a portion thereof is positioned below the box 210 and supports the box 210. The box 210 may include a main body 211 and a seat fabric 250 covering the exterior of the main body 211. As shown in FIG6 , the seat fabric 250 at least partially covers the box 210 and, optionally, may also at least partially cover the support assembly 220. A portion of the support assembly 220 (e.g., the engaging member 2231) is positioned outside the seat fabric 250 to facilitate secure installation. In one example, the main body 211 may be a foam material, such as expanded polypropylene (EPP), expanded polyethylene (EPE), or expanded ethylene (EPO). As shown in FIG9 , in this embodiment, the bracket assembly 220 may include a first bracket 221, a second bracket 222, and a third bracket 223. The first bracket 221 is disposed generally horizontally at the upper end of the bracket assembly 220, surrounding the box 210 and positioned near the opening of the box 210 (i.e., near the upper edge 214 of the box 210, but at a distance therefrom). The third bracket 223 is disposed generally horizontally at the lower end of the bracket assembly 220 and includes an R-shaped fitting 2231. The R-shaped fitting 2231 is spaced apart from the box 210 below the box 210 and is used to cooperate with a fixing seat assembly and / or a fixing strap assembly to secure the carrier 200 to the vehicle seat. The first bracket 222 is connected between the first bracket 221 and the third bracket 223. The second bracket 222 includes multiple parallel U-shaped structures and forms the side and bottom frames of the bracket assembly 220, contacting and supporting the side and bottom surfaces of the box 210. With reference to Figures 8 and 9 , when the outer surface of the housing 210 is covered with a seat cloth 250, the seat cloth 250 covers the first bracket 221 and the second bracket 222 of the bracket assembly 220, while the third bracket 223 is exposed outside the seat cloth 250 to facilitate cooperation with a fixed seat member and / or fixed belt member. The ceiling assembly 230 may include a ceiling frame 231 and a ceiling 233. The ceiling 233 is positioned above the housing 210 to cover the accommodating space 213 of the housing 210. The ceiling frame 231 is connected to and supports the ceiling 233. The ceiling frame 231 is pivotally connected to the housing 210 or the bracket assembly 220, allowing the ceiling 233 to be deployed or retracted relative to the housing 210. Specifically, as shown in Figures 8 to 10 , the ceiling frame 231 may include a first frame 2311 and a second frame 2312.The two ends of the first frame 2311 are respectively located on both sides of the box body 210 along the width direction D3 (i.e., two opposite long sides) and are respectively pivotally connected to the bracket device 220 (e.g., the first bracket 221) through the first pivot portion 2313. Correspondingly, the two ends of the second frame 2312 are respectively located on both sides of the box body 210 along the width direction D3 and are respectively pivotally connected to the bracket device 220 (e.g., the second bracket 221) through the second pivot portion 2314, so that the first frame 2311 and the second frame 2312 can pivot relative to each other and move closer or farther away. In this embodiment, the first pivot portion 2313 and the second pivot portion 2314 can be disposed outside the peripheral wall 212 of the housing 210 and below (i.e., lower than) the upper edge 214 of the housing 210. This differs from the previous embodiment in that the first pivot portion 2313 and the second pivot portion 2314 are disposed so as to at least partially overlap. Optionally, the first pivot portion 2313 and the second pivot portion 2314 share the same pivot point, meaning that the first pivot portion 2313 and the second pivot portion 2314 are pivotally connected to the bracket assembly 220 via the same pivot axis and are capable of pivoting relative to each other. Referring to Figures 9 and 10, the bracket assembly 220 is provided with a mounting seat 225 for mounting the ceiling frame 231. In one example, two mounting seats 225 can be provided, one located on either side of the housing 210 along the width direction D3 (i.e., on opposing long sides). Optionally, two mounting brackets 225 are located in the middle of the two long sides of the housing 210. Each mounting bracket 225 includes a first mounting portion 2251 and a second mounting portion 2252. The second mounting portion 2252 is disposed on the bracket assembly 220, such as the first bracket 221. In one example, the second mounting portion 2252 can be a clamp that is clamped to the first bracket 221 and can be further secured using screws or the like. The first mounting portion 2251 is disposed above the first mounting portion 2252 and is configured to connect the first frame 2311 and the second frame 2312 of the ceiling frame 231.In this embodiment, the first pivot portions 2313 at both ends of the first frame 2311 can be respectively provided with first pivot holes, the first pivot portions 2314 at both ends of the second frame 2312 can be respectively provided with first pivot holes, and the first mounting portion 2251 of the mounting seat 225 can be provided with a third pivot hole, and the positions of the first pivot hole, the first pivot hole and the third pivot hole correspond to each other. By passing a pivot shaft through the first pivot hole, the third pivot hole and the second pivot hole in sequence, the first frame 2311 and the second frame 2312 are pivotally connected to the first mounting portion 2251 of the mounting seat 225 and can be coaxially pivoted relative to each other to pivot between their respective first positions, second positions and third positions. It should be noted that the first position refers to the first frame 2311 or the second frame 2312 pivoting to a substantially horizontal position on one side, the second position refers to the first frame 2311 or the second frame 2312 being substantially vertical, and the third position refers to the first frame 2311 or the first frame 2312 continuing to pivot to a substantially horizontal position after passing the second position. In one embodiment, the roof 133 includes a first canopy portion 2331 and a second canopy portion 2332 that can be deployed or retracted relative to the housing 110. As shown in FIG7 , the first canopy portion 2331 has a first edge 2331a and a second edge 2331b. The first edge 2331a is the edge that engages the perimeter of the housing 210 when the first canopy portion 2331 is deployed, while the second edge 2331b is the edge of the first canopy portion 2331 that is away from the housing 210 when the first canopy portion 2331 is deployed. Accordingly, the first shelf portion 2332 has a first edge 2332a and a second edge 2332b. The first edge 2332a is the edge of the second shelf portion 2332 that meets the periphery of the housing 210 when the second shelf portion 2332 is unfolded, while the second edge 2332b is the edge of the second shelf portion 2332 that is away from the housing 210 when the second shelf portion 2332 is unfolded. When the first and second shelves 2331 and 2332 are unfolded, the first and second edges 2331a and 2331b of the first shelf portion 2331 are substantially perpendicular to each other, while the first and second edges 2332a and 2332b of the second shelf portion 2332 are substantially perpendicular to each other. In this embodiment, the first canopy portion 2331 and the second canopy portion 2332 form an integral ceiling. Specifically, the first canopy portion 2331 and the second canopy portion 2332 are integrally formed, or the second edge 2331b of the first canopy portion 2331 and the second edge 2332b of the second canopy portion 2332 are fixedly connected, for example, by sewing. However, the present disclosure is not limited to this embodiment. Specifically, referring to Figures 6, 7, and 11 to 15, the canopy 233 has three operating positions: a fully covered position, a partially covered position, and a fully open position.As shown in Figures 6 and 7 , when both the first and second canopy sections 2331, 2332 of the canopy 233 are extended, the canopy 233 is in a fully covered state. As shown in Figures 11 and 12 , when the first edge 2331a of the first canopy section 2331 and the first edge 2332a of the second canopy section 2332 are brought close to each other until they are approximately perpendicular, the canopy 233 is in a partially covered state. As shown in Figures 13 to 15 , when both the first and second canopy sections 2331, 2332 are folded, that is, when the canopy 233 is fully folded, the canopy 233 is in a fully open state. Unlike the previous embodiment, in this embodiment, as shown in Figures 6 , 7 , and 11 to 15 , the first frame 2311 is connected to the first edge 2331a of the first canopy section 2331, and the second frame 2312 is connected to the first edge 2332a of the second canopy section 2332. When the roof 233 is deployed, as shown in Figures 6 and 7 , the first frame 2311 and the second frame 2312 pivot relative to each other and away from each other until the first edge 2331a of the first shelf portion 2331 and the first edge 2332a of the second shelf portion 2332 are respectively joined to the box 210, for example, at or below the upper edge of the box 210, so that the roof 233 completely covers the accommodating space 213. At this point, the first frame 2311 and the second frame 2312 are both in their respective first positions, forming a substantially horizontal frame that surrounds the peripheral wall 212 of the box 210. As shown in Figures 11 and 12, when the roof 233 needs to be opened to the half-cover position, one of the first frame 2311 and the second frame 2312 pivots toward the other, thereby causing the roof 233 (i.e., the first and second canopy portions 2331 and 2332) connected between the first and second frames 2311, 2312 to fold until the first and second frames 2311, 2312 are substantially perpendicular to each other. That is, when the roof 233 is in the half-cover position, one of the first and second frames 2311, 2312 is in its first position, while the other is in its second position. As shown in FIG13 , one of the first frame 2311 and the second frame 2312 is continuously pivoted toward the other until the second frame 2311 and the first frame 2312 are both approximately horizontal and placed adjacent to each other, so that the roof 233 (including the first shed portion 2331 and the second shed portion 2332) is completely folded, thereby completely exposing the accommodating space 213 to the outside, i.e., in a fully open state.At this point, the first frame 2311 and the second frame 2312 are on the same side of the box 210. That is, one of the first frame 2311 and the second frame 2312 is in its first position, while the other is in its third position. Furthermore, as shown in Figures 14 and 15 , another fully open state is also shown. That is, the first frame 2311 and the second frame 2312 are both pivoted to their respective second positions, that is, both are placed vertically relative to the box 210. In this state, the accommodating space 213 of the box 210 can also be fully exposed. As shown in Figure 6 , the carrier 200 can also include a connecting strap 234 and a fixing member 235. The connecting strap 234 has a first end 2341 and a second end 2342, one of which is fixedly connected to the ceiling 233. The fixing member 235 includes a female connector 2351 and a male connector 2352 that are detachably connected to each other. They are respectively disposed on the other of the first end 2341 and the second end 2342 of the connecting strap 234 and the box 210, and are used to maintain the roof 233 closed relative to the box 210. For example, in this embodiment, the connecting straps 234 and corresponding fixing members 235 are symmetrically disposed on both sides of the carrier 200 along the longitudinal direction D2. As shown in FIG6 , taking the connecting belt 234 and the corresponding fixing member 235 near the second shed portion 2332 as an example, the first end 2341 of the connecting belt 234 can be fixedly connected to the second shed portion 2332 by sewing or other means, and the second end 2342 of the connecting belt 234 is provided with a female connector 2351, and a male connector 2352 is correspondingly provided on the box body 210. It is understandable that a connecting belt 234 and a corresponding fixing member 235 can also be provided on the side of the box body 210 near the first shed portion 2331. When the roof 233 is in the full cover state, that is, when the first shed portion 2331 and the second shed portion 2332 are both unfolded, the female connector 2351 and the male connector 2352 of the fixing member 235 can cooperate with each other to ensure that the first shed portion 2331 is fully covered. The first and second canopy portions 2331 and 2332 are fixed relative to the housing 210, thereby preventing the first canopy portion 2331 and / or the second canopy portion 2332 from being opened (i.e., separated from the housing 210) during movement of the housing 210. To fold the canopy 233, the user can open the fixing members 235 on either or both sides and rotate the canopy frame on that side (i.e., the first frame 2311 or the first frame 2312) toward the other side, thereby folding the canopy 233, including but not limited to a partially covered or fully open position.In one example, the fastener 235 can employ a magnetic fastener structure, meaning the female connector 2351 and the male connector 2352 can be mating female and male fasteners. However, the present disclosure is not limited to this. The fastener 235 can also employ zippers, hook and loop fasteners (e.g., Velcro), concealed snaps, insert buckles, hook and loop fasteners, or the like. Furthermore, as shown in Figures 6 and 7 , the case 210 of this embodiment can also include a handle 260, which can be located on the top side of the ceiling 233. However, the present disclosure is not limited to this. Referring now to Figures 16 to 21 , another embodiment of a pet carrier L2600 is illustrated. As shown, the pet carrier L2600 has a front, rear, left, right, and top formed by a first portion L2602 and a second portion L2604. The first portion L2602 and the second portion L2604 can, but need not, be separable. A pet carrier L2600 may include a roof unit L2610. The roof unit L2610 includes a roof frame L2612, a roof bow L2614 movable relative to the roof frame L2612, and a roof L2616. The roof bow L2614 has a first locating end L2618 and a second locating end L2620, respectively, mounted to the roof frame L2612. The roof bow L2614 is rotatable relative to the roof frame L2612 about a mounting axis extending through the first and second locating ends L2618 and L2620. In one embodiment, the roof bow L2614 is mounted near the center of the front L26 and rear L28 portions of the pet carrier L2600, respectively, such that the first frame portion L2622 of the roof frame L2612 is positioned on a first side of the mounting axis, and the second frame portion L2624 of the roof frame L2612 is positioned on an opposite, second side of the mounting axis. In the illustrated non-limiting embodiment, the roof bow L2614 is rotatable between a first position ( FIG. 16 ) where the roof bow L2614 is positioned substantially adjacent to and vertically aligned with the first frame portion L2622, and a second position ( FIG. 17 ) where the roof bow L2614 is positioned substantially adjacent to and vertically aligned with the second frame portion L2624. In one embodiment, the roof bow L2614 is rotatable approximately 180 degrees between the first and second positions. Furthermore, it should be understood that the roof bow L2614 can be positioned at one or more positions between the first position and the second position and maintained or retained in these positions. Any suitable type of positioning mechanism can be used to maintain the roof bow L2614 at the first position and any position along the rotation path between the first position and the second position.The ceiling L2616 has a main body including a first end L2626 and a second end L2628. In the non-limiting embodiment shown, one or more structural supports or support bows L2630 are associated with the main body of the ceiling L2616 and, in some embodiments, are integrated into the main body of the ceiling L2616. The structural supports L2630 can be rigid, semi-rigid, and / or elastic and can move about a mounting axis in response to rotation of the ceiling bow L2614. As shown, the first end L2626 of the ceiling L2616 can be connected to the ceiling bow L2614, and the second end L2628 of the ceiling L2616 can be connected to the second frame portion L2624 of the ceiling frame L2612. Thus, when the ceiling bow L2614 is in a first position, the ceiling L2616 extends about the mounting axis from a position approximately adjacent to the first frame portion L2622 to the second frame portion L2624. When the roof bow L2614 is in the first position, the pet carrier L2600 can be considered to be in a closed configuration. Similarly, when the roof bow L2614 is in the second position, the first end L2626 of the roof L2616 is positioned substantially adjacent to the second frame portion L2624 of the roof L2616 and the second end L2628 of the roof L2616. When the roof bow L2614 is in the second position, the pet carrier L2600 can be considered to be in a fully open configuration. When the roof bow L2614 is between the first and second positions, as shown in FIG. 19B , for example, the pet carrier L2600 can also be considered to be in a partially open position. In one embodiment, the roof bow L2614 can have a first portion L2632 of a locking mechanism or other coupling device positioned thereon. The first portion L2634 of the locking mechanism or closing device can be disposed, for example, on the base L2606 (see FIG. 20A ). When the roof bow L2614 is in the first position, the first portion L2632 of the locking mechanism can engage with the second portion L2634 of the locking mechanism ( FIG. 20B ). This engagement operatively holds the roof bow L2614 in the first position. The locking mechanism formed by the first and second portions L2632 and L2634 can provide a secure mechanical interlock and, in some embodiments, can be a magnetic latch. However, it should be understood that any suitable mechanism for coupling the roof bow L2614 to an adjacent portion of the pet carrier L2600 is within the scope of this disclosure. In other embodiments, the pet carrier may include multiple roof units.For example, in the non-limiting embodiment of Figures 22A to 26, the illustrated pet carrier L2700 includes a first roof unit L2710 positioned adjacent to a first side (e.g., the left side L30) of the pet carrier L2700, and a second roof unit L2712 positioned adjacent to an opposite second side (e.g., the right side L32) of the pet carrier L2700. In such an embodiment, each roof unit L2710, L2712 includes a roof bow L2714a, L2714b that is rotatable relative to a roof frame L2716a, L2716b about a respective mounting axis. As shown, the mounting axes may be parallel to each other, arranged in the same plane, and spaced apart from each other. The mounting ends L2718a, L2718b, L2720a, and L2720b of the roof bows L2714a and L2714b of each roof unit L2710 can similarly be mounted near the center of the front portion L26 and rear portion L28 of the pet carrier L2700. In the illustrated non-limiting embodiment, the first roof bow L2714a of the first roof unit L2710 can rotate between a second position and a first position. In the first position, the first roof bow L2714a is positioned substantially adjacent to and vertically aligned with the roof frame L2716a. In the second position, the first roof bow L2714a is arranged at a non-parallel angle relative to the roof frame L2716a. In the illustrated non-limiting embodiment, the second position of the first roof bow L2714a is substantially perpendicular to the first position. In such an embodiment, the first roof bow L2714a can rotate approximately 90 degrees between a first position and a second position. However, embodiments in which the second position is at another angle relative to the first position are also within the scope of this disclosure. Furthermore, it should be understood that the first roof bow L2714a can be positioned and maintained or retained in one or more positions between the first and second positions. The center panel L2722 can be positioned between and coupled to the first and second roof units L2710 and L2712, respectively. In one embodiment, the center panel L2722 is fixed relative to the pet carrier L2700 and the base L2706.The first roof L2724a of the first roof unit L2710 may have a first end L2726a connected to the first roof bow L2714a and an opposite second end L2728 connected to the center panel L2722c (e.g., an edge thereof). Furthermore, the first roof L2710 may include one or more first structural supports or support bows L2730a operable to maintain the shape of the first roof unit L2710 when closed. When the first roof bows L2714a are in the first position, the first roof L2724a extends from a position generally adjacent to the roof frame L2716a to the center panel L2722c. When the first roof bows L2714a are in the first position, the first roof unit L2710 of the pet carrier L2700 may be considered to be in a closed configuration. Similarly, when the first roof bow L2714a is in the second position, the first end L2726a of the first roof L2724a is substantially adjacent to the center panel L2722 and, therefore, adjacent to the second end L2728a of the first roof L2724a. When the first roof bow L2714a is in the second position (Figures 23 and 25A), the first roof unit L2710 of the pet carrier L2700 can be considered to be in a fully open configuration. When the first roof bow L2714a is in a position between the first and second positions, the first roof L2724a of the pet carrier L2700 can be considered to be in a partially open position. In one embodiment, the center panel L2722 or the roof may include a retaining device (not shown) operable to retain the first roof bow L2714a in the second position. It should be understood that the second roof unit L2712 can have a similar configuration to the first roof unit L2710. A first end L2726b of the second roof L2724b can be attached to the first roof bow L2714b, and an opposite first end L2728b of the first roof L2724b can be connected to the center panel L2722. One or more first structural supports or support bows L2730b are operable to support the central portion of the second roof L2724b. The second roof bow L2714b is movable from a first position adjacent to the roof frame L2716b (Figures 22A and 24A) to a second position adjacent to the center panel L2722 (Figures 23 and 25B). The operation of the second roof unit L2712 is substantially similar to that of the first roof unit L2710 and will not be described in detail herein.In an embodiment of the pet carrier L2700 including a first roof unit L2710 and a second roof unit L2712, the position of the first roof L2724a can be adjusted independently of the position of the second roof L2724b. Although described as separate first and second roof units L2710 and L2712, it should be understood that in other embodiments, a single roof unit is also within the scope of the present disclosure. The roof frames L2716a and L2716b may form a single roof frame, with the single roof unit having a first roof bow L2714a (rotatable as described above) and a second roof bow L2714b (rotatable as described above), with the first and second roof bows L2714a and L2714b mounted at different positions around the single roof frame. In such an embodiment, the ceiling unit can include two separate ceilings L2724a and L2724b, connected by a center panel L2722, as previously described. Alternatively, a single ceiling L2724 can be used, having a first end L2726 connected to a second ceiling bow L2714a and an opposite first end L2728 connected to a first ceiling bow L2714b. In this configuration, the center of the single ceiling, positioned between the first and second ceiling bows L2714a and L2714b, remains stationary relative to portion L2706. Similar to the embodiment of Figures 16-21 , in this embodiment, each roof bow L2714a, L2714b may have a first portion L2732a, L2732b of a locking mechanism or other coupling device located thereon. This first portion L2732a, L2732b is configured to cooperate with a second portion (not shown) of a locking mechanism or other coupling device disposed on the base L2706, for example, to retain the roof L2724a, L2724b in a closed position. In the embodiment shown and described herein, one or more roof units L2610, L2710, L2712 are integrated into both the first portion L2602, L2702 and the first portion L2604, L2704 of the pet carrier L2600, L2700. For example, the combination of the roof L2616, L2724a, L2724b and the roof bows L2614, L2714a, L2714b can form the first portion L2602, L2702 of the pet carrier L2600, L2700, and the roof frame L2612, L2716a, L2716b can be mounted to the base L2606, L2706± of the second portion L2604, L2704.In the non-limiting embodiment shown, the second portion L2604, L2704 includes sidewalls L2607, L2707 protruding from the base. In one embodiment, the sidewalls L2607, L2707 extend around the entire periphery of the base L2606, L2706. The roof frames L2612, L2716a, L2716b can be located on the sidewalls L2607, L2707. However, embodiments where the roof frames L2612, L2716a, L2716b are located on the first portion L2602, L2702 of the pet carrier L2600, L2700 are also within the scope of this disclosure. In one embodiment, the roofs L2616, L2724a, L2724b of each roof unit L2610, L2710, L2712 are permanently coupled to the pet carrier L2600, L2700. However, in one embodiment, as shown in FIG. 21 and FIG. 26 , the canopy L2616, L2724a, L2724b can be removably secured to the pet carrier L2600, L2700, for example, via one or more connectors. In the illustrated non-limiting embodiment, the connectors L2640, L2740 include a first portion L2642, L2742 (e.g., a buckle) and a second portion L2644, L2744 (e.g., a latch plate slidably received within the buckle L2642, L2742). While the buckles L2642, L2742 are shown mounted on the second portion L2604, L2704, such as the ceiling frames L2612, L2716a, L2716b, and the latch plates L2644, L2744 are shown extending from the first portion L2602, L2702, such as the locating ends of the ceiling bows L2614, L2714a, L2714b, it should be understood that embodiments in which the buckles L2642, L2742 are disposed on the first portion L2602, L2702 and the latch plates L2644, L2744 are disposed on the second portion L2604, L2704 are also contemplated. Furthermore, the connectors L2640, L2740 shown and described herein are intended to be exemplary only, and any suitable connector operable to releasably couple the first and second portions is within the scope of this disclosure. Various embodiments of the pet carrier L2600, L2700 also include at least one latch connector that can be engaged with a corresponding seat anchor (not shown) of a vehicle seat (eg, a car seat).In the illustrated non-limiting embodiment, such as that shown in Figures 16-18B , the carrier L2600 has multiple latch connectors, including a first latch connector L70a and a second latch connector L70b. However, embodiments having only a single latch connector or more than two latch connectors are also contemplated herein. At least one latch connector L70a, L70b can be integral with the carrier L2600. For example, at least one latch connector can be permanently attached to the carrier L2600. Alternatively, at least one latch connector can be removably attached to the carrier L2600. In the illustrated non-limiting embodiment, at least one latch connector L70a, L70b is disposed at the base L2606, L2706 of the carrier L2600, L2700. It should be understood that embodiments in which the latch connectors are disposed at another suitable location around the carrier L2600, L2700 are also within the scope of this application. Additionally, while the latch connectors L70a, L70b are shown as being positioned adjacent to the rear side of the vehicle L2600, L2700 in several embodiments, in other embodiments, one or more latch connectors L70a, L70b may be positioned on another side of the vehicle L2600, such as the right, left, or front side of the vehicle L2600. The latch connectors L70a, L70b can be transitioned, for example, via a release actuator, between a closed or engaged configuration, in which the latch members (not shown) of the latch connectors L70a, L70b are closed or extended, and an open or released configuration, in which the latch members (not shown) of the latch connectors L70a, L70b are open or retracted (not shown) and can thus be separated from the vehicle's seat anchor. Although not shown, in some embodiments, release actuators are located directly on the latch connectors L70a and L70b. A user operates the release actuator of each corresponding latch connector to separate the carrier L2600 and L2700 from the corresponding seat anchor. In some embodiments, the release actuators are located at the connection between the handle and the ceiling or at other locations. The latch connectors L70a and L70b can be configured to extend relative to the base L2606 and L2706 in an extended position when in use, engaging the corresponding seat anchor; and to retract into a cavity in the base L2606 and L2706 in a retracted position when not in use.It should be noted that the vehicles L2600 and L2700 shown in Figures 16 to 17 and Figures 22A, 22B and 23 are not shown in perspective, while the roof units L2610, L2710, L2712 and the side walls L2607 and L2707 in the vehicles L2600 and L2700 shown in Figures 18A to 19B, 21, and 24A to 27 are shown in perspective. Therefore, the roof frames L2612, L2716a, L2716b of the roof units L2610, L2710, L2712, the roof bow L2614, the first roof bow L2714a, the second roof bow L2714b, and the structural supports or support bows L2630, L2730a, L2730b is shown in a perspective view. It should be understood that for vehicle L2600, referring to Figures 16 and 17 , the roof frame L2612 (including the first frame portion L2622 and the second frame portion L2624) is located inside vehicle L2600. More specifically, the roof frame L2612 is located inside the side wall L2607, shielded by the side wall L2607, and lower than the upper edge of the side wall L2607. As shown in Figure 21 , the roof bow L2614 is located inside the roof L2616, with a portion of the roof bow L2614 (hereinafter referred to as the extension portion) extending downward beyond the edge of the roof. Referring to Figures 18A-18B and 19C, when the roof bow L2614 is in the first or second position, the extended portion of the roof bow L2614 is located inside the side wall L2607 and above the roof frame L2612. Consequently, the roof bow L2614 is located inside the ceiling L2616 and the side wall L2607, obstructing them. The first portion L2642 of the connector L2640 is also located inside the carrier L2600, obstructing them. A user can operate the first portion L2632 of the locking mechanism to move the roof bow L2614 between the first and second positions. Correspondingly, for the carrier L2700, referring to Figures 22A to 23, the ceiling frames L2716a and L2716b are located inside the carrier L2700. More specifically, the ceiling frames L2716a and L2716b are located on the inner side of the side wall L2707. The ceiling frames L2716a and L2716b are blocked by the side wall L2707, and the ceiling frames L2716a and L2716b are lower than the upper edge of the side wall L2707.As shown in Figures 24A and 24B, the first ceiling bow frame L2714a and the second ceiling bow frame L2714b are located on the inner sides of the ceilings L2724a and L2724b, and a portion of the first ceiling bow frame L2714a (this portion is referred to as the first extension portion below) and a portion of the second ceiling bow frame L2714b (this portion is referred to as the second extension portion below) extend downward beyond the edge of the ceiling. Referring to Figures 24A and 24B, when the first ceiling bow L2714a is in the first position, the first extension of the first ceiling bow L2714a is located inside the side wall L2707 and above the ceiling frame L2716a. The first ceiling bow L2714a is located inside the ceiling L2724a and the side wall L2707 and is obscured. When the second ceiling bow L2714b is in the first position, the second extension of the second ceiling bow L2714b is located inside the side wall L2707 and above the ceiling frame L2716b. The second ceiling bow L2714b is located inside the ceiling L2724b and the side wall L2707 and is obscured. The first portion L2742 of the connector L2740 is also located inside the carrier L2700 and is obscured. A user can operate the first portions L2732a and L2732b of the locking mechanisms to respectively move the first and second roof bows L2714a and L2714b between the first and second positions. Referring to FIG27 , another embodiment of a pet carrier M320 is shown. In this embodiment, the pet carrier M320 is largely similar in structure to the pet carrier of the aforementioned roofed embodiment. In this example, the roof M370 can only pivot 90 degrees, opening approximately halfway compared to the roofs of the aforementioned pet carriers. Opposite the roof M370 is a closed side M321 of the carrier M320. In this embodiment, the closed side M321 is adjacent to a center panel with a handle. In some embodiments, the closed side M321 may have windows, zippered doors, or the like. Referring to FIG28 and FIG29 , an overall description of the carrier N400 according to the present application, applied to a base N500, is provided. The carrier N400 is used to carry pets. In this embodiment, the carrier N400 is a generally rectangular sleep cot. However, it should be understood that the carrier N400 may also take other suitable forms, as long as it is provided with the engaging structure N100 and unlocking structure N200 described in detail. The carrier N400 can be engaged with the top of the base N500. The base N500 has a structure for securing to a vehicle, thus enabling the carrier N400 to be secured to the vehicle via the base N500.However, it should be understood that the form of the base N500 is not limited to this, as long as it can be engaged with the carrier N400. The carrier N400 is provided with at least one engaging structure N100, at least one unlocking structure N200, and at least one connecting member N300. The engaging structure N100 can be switched between a locked state and an unlocked state, allowing the carrier N400 to engage with or disengage the base N500. The unlocking structure N200 and the engaging structure N100 are located at different positions within the carrier N400. The connecting member N300 is connected to the engaging structure N100 and the unlocking structure N200. The unlocking structure N200 can be operated to unlock the engaging structure N100 through the connecting member N300. Operation of the unlocking structure N200 can then unlock the engaging structure N100. This will be described in detail below. The specific structure of the base N500 is described with reference to Figures 30 and 31. For ease of description, this document refers to the front-to-back direction of the base N500 as the longitudinal direction, the left-to-right direction of the base N500 as the transverse direction, and the up-down direction of the base N500 as the vertical direction. It should be understood that the vertical, longitudinal, and transverse directions are not necessarily strictly vertical or horizontal, but can have certain inclination angles, and are not necessarily perpendicular to each other. The base N500 includes at least one base rod N510 and an outer cover N520. The base rod N510 is secured to the main pipe N530 of the base N500, for example, by welding or by snap-fitting, but is not limited to this. In this embodiment, two base rods N510 are arranged longitudinally and are respectively fixed to the main pipe member N530 to ensure stable engagement with the carrier N400. The engaging structure N100 includes engaging hooks N120. When the carrier N400 is engaged with the base N500, the engaging hooks N120 of the engaging structure N100 connect to the base rods N510 (see FIG41A). An outer cover N520 covers the top surface of the base N500 and defines at least one base engaging groove N540. In this embodiment, the bottom surface of the carrier N400 is provided with engaging rods N410 (see FIG29). Each base rod N510 is provided with a base engaging groove N540 on either side to accommodate the engaging rods N410 on the bottom surface of the carrier N400. Referring to FIG32 and FIG33, the application of the carrier N400 in accordance with this application to a cart N600 is described. The frame of the cart N600 may be provided with a cart K-joint slot N610, which is similar to the base K-joint slot N540 of the base N500. The K-joint rod N410 of the carrier N400 can be K-joined to the cart K-joint slot N610, so that the carrier N400 and the cart N600 are combined into one.In this embodiment, the cart N600 does not have components for connecting to the snap-fit ​​structure N100. However, in other embodiments, the cart N600 may also be provided with components similar to the base rod N510 for connecting to the snap-fit ​​structure N100. A carrier N400 according to the present application is further described with reference to Figures 34 to 36. In this embodiment, the carrier N400 includes a housing N420, a first support tube N430, two second support tubes N440, and snap-fit ​​rods N410. The housing N420 is generally rectangular and has opposing top and bottom surfaces. The first support tube N430 is located near the top surface of the housing N420 and surrounds the sides of the housing N420, forming a ring-shaped structure extending laterally and longitudinally. The two second support tubes N440 are arranged in a transverse direction. Each first support tube N440 is U-shaped, connected to two sides of the first support tube N430 and surrounding the bottom surface of the housing N420. In this way, the first support tube N430 and the second support tube N440 form a frame surrounding the box N420. The locking rod N410 is located below the bottom surface of the box N420, forming a ring around the perimeter of the box N420. As previously described, the locking rod N410 can engage with the base locking groove N540 of the base N500 to secure the carrier N400 to the base N500. The locking structure N100 is located on the locking rod N410 and can engage with the base rod N510 of the base N500 to lock the carrier N400. More specifically, the locking structure N100 is located below the bottom surface of the carrier N400 and near the longitudinal side of the carrier N400, while the unlocking structure N200 is located on the lateral side of the carrier N400 and near the top surface of the carrier N400. This places the unlocking structure N200 in a position that is easily visible and operable by the user, improving the user experience. In contrast, the unlocking structure N200 in the prior art is located near the engaging structure N100, and is therefore inevitably located at the bottom of the carrier N400 or on the base N500. This requires the user to reach the unlocking structure N200 by reaching around the entire carrier N400, making it difficult for the user to observe and operate. In the present application, a single unlocking structure N200 can simultaneously control multiple engaging structures N100. Referring to FIG. 35 , the engaging structure N100 includes a first engaging structure N101 and a second engaging structure N102, which are symmetrically arranged along the longitudinal direction.The unlocking structure N200 includes a first unlocking structure N201, which is connected to a first engaging structure N101 and a second engaging structure N102 via two connectors N300, respectively. The first unlocking structure N201 can be operated to simultaneously unlock the first engaging structure N101 and the second engaging structure N102. The specific structure of the unlocking structure N200 will be explained in detail below. In this application, the carrier N400 may include multiple engaging groups formed by the engaging structures N100 and the unlocking structure N200, each of which includes mutually associated engaging structures N100 and unlocking structures N200. Continuing with FIG. 35 , the first engaging structure N101, the second engaging structure N102, and the first unlocking structure N201 form a single engaging group. Furthermore, the engaging structure N100 also includes a first engaging structure N103 and a fourth engaging structure N104, which are symmetrically arranged along the longitudinal direction. The unlocking structure N200 also includes the second unlocking structure N202. The second unlocking structure N202 is connected to the third and fourth engaging structures N103 and N104, respectively, via two connectors N300, and can be operated to simultaneously unlock the third and fourth engaging structures N103 and N104. Therefore, the third and fourth engaging structures N103 and N104, along with the first unlocking structure N202, form another engaging group. When the carrier N400 is engaged with the base N500, the engaging structure N100 in any engaging group can be connected to the engaging rod N410 of the base N500 (see FIG31 ). Thus, multiple engaging groups provide multiple position options for engaging the carrier N400 with the base N500. In this embodiment, the first locking structure N101 and the first locking structure N102 are located on one lateral side of the carrier N400, for example, the right side in FIG35 , while the third locking structure N103 and the fourth locking structure N104 are located on the other lateral side of the carrier N400, for example, the left side in FIG35 . Correspondingly, the first unlocking structure N201 is located at the center of one lateral side of the carrier N400, while the second unlocking structure N202 is located at the center of the other lateral side of the carrier N400. In other embodiments, the positions of the various locking structures N100 can be flexibly adjusted as needed.The engaging structure N100 is further described in detail with reference to Figures 37 to 39 . The engaging structure N100 includes a mounting member N110, an engaging hook N120, a rotating shaft N130, a first pin N140 (see Figures 41A and 41B for the rotating shaft N130 and the first pin N140), a first elastic member N150, and a mounting seat N160. The mounting seat N160 is mounted to the engaging rod N410 of the carrier N400 and at least partially accommodates the mounting member N110. The mounting member N110 is inserted into the mounting seat N160 and accommodates the engaging hook N120, the rotating shaft N130, the first pin N140 (see Figures 41A and 41B), and the first elastic member N150. More specifically, the mounting member N110 has a hollow structure, and the engaging hook N120 is accommodated within the mounting member N110. The mounting member N110 includes a rotation axis hole N111, a guide hole N112, and a locking hole N113. The rotation axis hole N111 extends transversely through the mounting member N110. The rotation axis N130 of the locking structure N100 (see Figures 41A and 41B) is disposed in the rotation axis hole N111. The locking hook N120 rotates about the rotation axis N130, meaning that the locking hook N120 swings about a transverse axis. A first elastic member N150 is disposed about the rotation axis N130. In this embodiment, the first elastic member N150 is a torsion spring, with its ends respectively abutting the inner wall of the mounting member N110 and the locking hook N120, and configured to bias the locking hook N120 toward a locked position (described in detail below). The guide hole N112 extends transversely through the mounting member N110 and is a vertically extending elongated hole. The engaging hole N113 extends transversely through the mounting member N110 and opens toward the bottom surface of the mounting member N110. The engaging hook N120 includes a pivot end N121 and a hook portion N122, which are opposed to each other. The pivot end N121 is pivotally connected to the mounting member N110 via a rotation axis N130 (see Figures 41A and 41B). The hook portion N122 is capable of swinging about the pivot end N121. The engaging hook N120 includes an outwardly open hook recess N125 formed between the hook portion N122 and the pivot end N121. When the engaging hook N120 is in a locked state, the hook recess N125 can lock onto the base rod N510C of the base N500 (see Figure 41A), thereby preventing relative movement between the carrier N400 and the base N500. A circumferentially continuous sliding groove N123 is formed between the hook portion N122 and the pivot end N121, and is specifically a long groove extending obliquely.The first pin N140 is inserted into and movable within the sliding groove N123. This movement of the first pin N140 within the sliding groove N123 drives the engaging hook N120 to swing. The mounting seat N160 is positioned over the outer side of the mounting member N110 and includes two mounting holes N161, an engaging groove N163, and a cushion N162. Two mounting holes N161 are located on either side of the mounting base N160. The engaging rods N410 are inserted into the mounting base N160 at either side (specifically, through the side holes N164 on either side). Two fasteners, such as screws, secure the mounting base N160 to the engaging rods N410 through the two mounting holes N161. An engaging groove N163 is located on the bottom surface of the mounting base N160. The engaging hole N113 of the mounting member N110 communicates with the engaging groove N163 and faces the exterior of the engaging structure N100 through the engaging groove N163. A cushion N162 is provided on the bottom surface of the mounting base N160 to ensure that the carrier N400 is stably placed on the ground or a tabletop after being detached from the base N500. In this embodiment, the mounting member N110 and the mounting base N160 are two assembled components. However, in other embodiments, the mounting member N110 and the mounting base N160 may be a single, integrally formed component. Furthermore, in this embodiment, the connecting member N300 is a traction cable, comprising a cable N310, a cable sleeve N320, a first end N330, and a second end N340 (see FIG44 ). The cable sleeve N320 is embedded in the carrier N400, and the cable N310 is disposed within the sleeve N320 and connected to the first end N330 and the first end N340. Therefore, movement of the first end N330 is transmitted to the second end N340. In other embodiments, the connecting member N300 may also be an integrally formed elastic strip, etc., and is not limited to the description in this embodiment. Referring to FIG39 , the first end N330 of the cable N310 is connected to the engaging structure N100, which is then sleeved onto the first pin N140 to drive the linear movement of the first pin N140. The specific structure and operation of the engaging structure N100 will be described with reference to FIG40 to FIG41B . A first pin N140 is linearly movable within the mounting member N110, specifically within a guide hole N112 (see FIG39 ) of the mounting member N110. The first pin N140 is inserted into the sliding groove N123 of the engaging hook N120, allowing the linear movement of the first pin N140 to cause the engaging hook N120 to swing between a locked position ( FIG41A ) and an unlocked position ( FIG41B ).Figure 41A shows the carrier N400 engaged with the base N500, with the engagement structure N100 in a locked state. At this point, the base rod N510 of the base N500 is accommodated in the engagement hole N113. When the engagement hook N120 is in the locked state, the hook recess N125 of the engagement hook N120 corresponds to the position of the engagement hole N113, engaging the base rod N510. When a user wishes to unlock the engagement structure N100, they pull the connector N300 through the unlocking structure N200, causing the first end N330 of the connector N300 to drive the first pin N140 to move linearly relative to the mounting member N110, specifically, vertically upward. At this point, the first pin N140 slides along the sliding groove N123 while simultaneously driving the engaging hook N120 to rotate upward, that is, counterclockwise in Figures 41A and 41B , causing the hook recess N125 of the engaging hook N120 to disengage from the base rod N510. Consequently, the engaging structure N100 reaches the unlocked state shown in Figure 41B , allowing the carrier N400 to detach from the base N500. The specific structure of the unlocking structure N200 will be described with reference to Figures 42 to 43B . The unlocking structure N200 includes an operating member N210, a first pin N220, a third pin N240, and a first single-sex member N230. The operating member N210 is configured as a block-shaped handle that can be operated from the outside of the carrier N400 to vertically move between an initial state (Figure 43A) and a pressed state (Figure 43B). The operating member N210 is provided with a vertically extending operating member slot N211 and at least one diagonally extending diagonal slot N212. A first pin N220 is disposed within the unlocking structure N200 for linear (specifically, transverse) movement and inserted into the diagonal slot N212 of the operating member N210, thereby converting vertical movement of the operating member N210 into transverse movement of the second end N340 of the connecting member N300. A transversely extending guide slot (not shown) may be provided within the first support tube N430 to guide the transverse movement of the second pin N220. A third pin N240 is secured to the carrier N400 and inserted into the operating member slot N211 of the operating member N210 to guide vertical movement of the operating member N210. The second end N340 of the connecting member N300 is sleeved onto the second pin N220. When the operating member N21 is moved to the pressed position, the operating member N21 is engaged. The inclined slot N212 drives the second pin N220 to move linearly to pull the second end N340 of the connecting member N300, thereby causing the first end N330 of the connecting member N300 to drive the engaging structure N100 to move to the unlocked state.The two second pins N220 can be inserted into the two oblique slots N212 of the operating member N210 on either side of the longitudinal axis and connected to the second ends N340 of the two connecting members N300. Therefore, the operating member N210 can simultaneously drive the two connecting members N300, allowing one unlocking structure N200 to simultaneously unlock both engaging structures N100. The second elastic member N230 biases the operating member N210 toward its initial position, maintaining the operating member N210, which is not subject to external forces, in its initial position. More specifically, the second elastic member N230 is a coil spring, one end of which abuts against the inner wall of the first support tube N430 of the housing N420 and the other end abuts against the top surface of the operating member N210, thereby biasing the operating member N210 downward toward its initial position. In summary, the present application provides a carrier having an engaging structure and an unlocking structure, with the engaging and unlocking structures located at different locations on the carrier. In addition, the specific structure of the carrier of the present application contributes to its stability under load and can prevent deformation and overturning of the carrier. Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by those skilled in the art to which this disclosure belongs. It should also be understood that terms should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and, unless expressly defined herein, should not be interpreted as idealized or overly formal. It should be understood that although preferred embodiments have been shown and described above, the present disclosure is not limited to the specific embodiments described above, and various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the appended claims. Therefore, it should be noted that various modifications and variations should not be considered to exceed the technical spirit and scope of this disclosure.

Claims

Claims 1. A vehicle, characterized in that: The carrier includes: a box body having a containing space; a ceiling assembly pivotally connected to the box body or a bracket device arranged around the box body, and the pivot position is located below the upper edge of the box body, and the ceiling assembly is arranged above the box body to cover the containing space.

2. The carrier according to claim 1, characterized in that: The ceiling assembly includes: a ceiling; and a ceiling frame connected to the ceiling to support the ceiling, wherein the ceiling frame is pivotally connected to the box or the bracket device so that the ceiling can be unfolded or folded relative to the box.

3. The carrier according to claim 2, characterized in that: The ceiling includes a first shelf portion and a second shelf portion, the first shelf portion having a first edge and a second edge, wherein the first edge is an edge that engages with the periphery of the box when the first shelf portion is unfolded, and the second edge is an edge that is away from the box when the first shelf portion is unfolded; and the second shelf portion has a first edge and a second edge, wherein the first edge is an edge that engages with the periphery of the box when the second shelf portion is unfolded, and the second edge is an edge that is away from the box when the second shelf portion is unfolded.

4. The carrier according to claim 3, characterized in that: When the first shed is unfolded, the first edge and the second edge of the first shed are substantially perpendicular to each other; and when the first shed is unfolded, the first edge and the second edge of the second shed are substantially perpendicular to each other.

5. The carrier according to claim 3, characterized in that: When the first shed portion and the second shed portion are both unfolded, the second edge of the first shed portion and the second edge of the second shed portion are joined to each other to form the entire roof.

6. The carrier according to any one of claims 3 to 5, characterized in that: The ceiling frame includes a first frame and a second frame, the first frame and the second frame are respectively pivotally connected to the box body or the bracket device, and can pivot relative to each other to move closer or farther away; the first frame is connected to one of the first edge and the second edge of the first shed part, and the second frame is connected to one of the first edge and the second edge of the second shed part, so that the first shed part and the second shed part can be opened or closed relative to the box body.

7. The carrier according to claim 6, characterized in that: The first frame is connected to the second edge of the first shed portion, and the second frame is connected to the second edge of the second shed portion. When the roof is unfolded, the first frame and the second frame are pivoted relative to each other and approach each other, so that the first shed portion and the second shed portion are engaged with each other to completely cover the accommodating space. as well as When the roof is fully folded, the first frame and the second frame pivot away from each other to fold the first shelf part and the second shelf part.

8. The carrier according to claim 6, characterized in that: The first frame is connected to the first edge of the first shed portion. The first frame is connected to the first edge of the first shed portion. When the ceiling is unfolded, the first frame and the second frame pivot relative to each other and move away from each other so that the first edge of the first shed portion and the first edge of the first shed portion are respectively engaged with the box body to completely cover the accommodating space; and when the ceiling is completely folded, the first frame and the second frame pivot relative to each other and move closer to each other so that the first shed portion and the second shed portion are folded.

9. The carrier according to claim 8, characterized in that: When the roof is unfolded, the first frame and the second frame form a substantially horizontal frame; and when the roof is fully folded, the first frame and the second frame are substantially horizontal and adjacently placed.

10. A carrier, characterized in that: The carrier includes: at least one engaging structure capable of switching between a locked state and an unlocked state; at least one unlocking structure located at a different position of the carrier from the engaging structure; and at least one connecting member connected to the engaging structure and the unlocking structure, wherein the unlocking structure can be operated to switch the engaging structure to the unlocked state through the connecting member.

11. The carrier according to claim 1, characterized in that: The carrier can be clamped to a base, and the clamping structure can be clamped to a base rod of the base to be in the locked state.

12. The carrier according to claim 11, characterized in that: A clamping rod is provided at the bottom of the carrier, and the clamping rod forms a ring along the circumference of the carrier; and the clamping rod is used to clamp into the base clamping groove of the base, so that the carrier is fixed to the base.

13. The carrier according to claim 12, characterized in that: The clamping structure comprises a mounting seat, and the mounting seat is mounted on the clamping rod; two mounting holes are respectively arranged on two lateral sides of the mounting seat, and the clamping rod is respectively inserted into the mounting holes at two lateral sides for fixing.

14. The carrier according to claim 11, characterized in that: The carrier includes: a box body; a first support tube, close to the top surface of the box body and surrounding the circumference of the box body; two second support tubes, arranged in the transverse direction of the box body, each of the second support tubes is U-shaped, connected to both sides of the first support tube and surrounding the bottom surface of the box body.

15. The carrier according to claim 14, characterized in that: The card platform structure is arranged below the second support tube; the unlocking structure is arranged outside the first support tube; and the connecting member extends along the inside of the first support tube and the second support tube.

16. The carrier according to claim 11, characterized in that: The locking structure includes: a mounting member; a locking hook pivotally connected to the mounting member; a first pin linearly movably arranged in the mounting member and inserted into a sliding groove of the R locking hook, so that the linear movement of the first pin drives the locking hook to swing between a locked position and an unlocked position; and a first elastic member biasing the K locking hook toward the locked position.

17. The carrier according to claim 16, characterized in that: The mounting piece is of a hollow structure, the engaging hook is accommodated in the mounting piece, and the mounting piece comprises: a rotating shaft hole, which penetrates the mounting piece in the transverse direction, the engaging structure comprises a rotating shaft arranged in the rotating shaft hole, the engaging hook rotates around the rotating shaft, and the first elastic piece is arranged around the rotating shaft; a guide hole, which penetrates the mounting piece in the transverse direction and is an elongated hole extending in the vertical direction, the first pin is arranged in the guide hole; and an engaging hole, which penetrates the mounting piece in the transverse direction and is open toward the bottom surface of the mounting piece, the base rod of the base is accommodated in the engaging hole; the engaging hook is provided with a hook recess which can be engaged with the base rod, and when the engaging hook is engaged with the base rod to be in the locking position, the hook recess corresponds to the position of the engaging hole.

18. The tool according to claim 16, characterized in that: The connecting member includes a first end connected to the engaging structure, and the first end is sleeved with the first pin to drive the linear movement of the first pin.

19. The carrier according to any one of claims 16, characterized in that: The unlocking structure includes: an operating member, which can be operated from the outside of the carrier to move vertically between an initial state and a pressed state, and when the operating member moves to the pressed state, it moves the engaging hook to the unlocking position through the connecting member, and the operating member is provided with an operating member slot extending vertically; a third pin fixed to the carrier and inserted into the operating member slot to guide the operating member to move vertically; and a second elastic member, biasing the operating member toward the initial state.

20. The carrier according to claim 19, characterized in that: The unlocking structure also includes: at least one second pin, which is linearly movably arranged in the unlocking structure, and at least one oblique groove extending in an oblique direction is opened in the operating member, and the second pins are respectively inserted into the oblique groove; the connecting member includes a second end connected to the unlocking structure, and the second end is sleeved on the second pin; when the operating member moves to the pressing state, the oblique groove of the operating member drives the second pin to move linearly to pull the connecting member.

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