Carrier

Abstract

Provided in the present disclosure is a carrier. The carrier comprises a box, which comprises a body and a bottom support, wherein the body is connected to the bottom support so as to form an accommodating space with the bottom support; and a window is provided in a side surface and / or a top surface of the body, and is provided with a closing member for closing and / or covering the window, and a protective device is provided on the closing member.

Description

[0001] Carrier TECHNICAL FIELD The present disclosure relates to a carrier, in particular to a carrier provided with a protection device. BACKGROUND In recent years, as users pay more and more attention to the safety of pets in vehicles, most users will use a carrier such as a pet basket, a pet box, etc. to carry pets when going out, so as to facilitate carrying and moving, and provide a positioning or seating position for pets in the vehicle. The existing carrier usually does not have a collision protection mechanism or function (such as a side impact protection function), so that when the vehicle is in an unexpected collision (especially the side of the vehicle is impacted) or the speed or direction of the vehicle suddenly changes, the side impact force or collision force cannot be well buffered, etc., increasing the possibility that the pet in the carrier is impacted or injured. SUMMARY The present disclosure provides a carrier. The carrier includes a box body, the box body includes a body and a bottom support, the body is connected to the bottom support to form a containing space with the bottom support. A window is provided on the side and / or top of the body, and the window is provided with a sealing piece for closing and / or shielding the window, and a protection device is provided on the sealing piece. The present disclosure also provides a carrier, the carrier includes a box body having a peripheral wall and a bottom, the peripheral wall and the bottom define a containing space and a top opening. A protection device is provided on the peripheral wall of the box body. The present disclosure also provides a carrier, the carrier includes a box body having a peripheral wall and a bottom, the peripheral wall and the bottom define a containing space and a top opening. A protection device is provided on the peripheral wall of the box body, the protection device includes a buffer block, the buffer block is provided at least on any inner side of the peripheral wall of the box body in a longitudinal direction. The present disclosure also provides a carrier, the carrier includes a containing body, a roof assembly and a protection device. The containing body has a top opening. The roof assembly is detachably connected to the containing body to open and close the top opening, the roof assembly has a deployed state for closing the top opening. The protection device is provided at least on the roof assembly. The protection device includes a protective cover, the protective cover includes a cover body and a second connecting piece, the cover body is connected to the containing body and / or the roof assembly through the second connecting piece, so as to cover at least a part of the roof assembly when the roof assembly is in the deployed state. The present disclosure also provides a carrier, the carrier includes a containing body, a roof assembly and a protection device. The containing body has a top opening, fifth connecting pieces are provided on both sides of the containing body in a longitudinal direction. The roof assembly is mounted on the containing body, the roof assembly is provided with corresponding mating connecting pieces corresponding to the fifth connecting pieces, the fifth connecting pieces and the corresponding mating connecting pieces are detachably connected to each other to close the top opening.The protection device comprises side impact protection blocks arranged on the fifth connecting member and / or the mating connecting member. The present disclosure also provides a vehicle comprising a receiving body and a protection device. The receiving body defines a receiving space, and the protection device is arranged on either side of the receiving body in a longitudinal direction or a transverse direction. The protection device is attached to the vehicle by a coupling device and has a protection body made of energy-absorbing material or impact-absorbing material. BRIEF DESCRIPTION OF DRAWINGS The accompanying drawings, which are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. FIG. 1 schematically shows a side view of a vehicle provided according to a first embodiment of a first aspect of the present disclosure, in which a roof assembly is in an unfolded state. FIG. 2 schematically shows a top view of the vehicle shown in FIG. 1. FIG. 3 schematically shows another side view of the vehicle shown in FIG. 1, in which one second connecting member of a protective cover is not connected with a corresponding first connecting member. FIG. 4 schematically shows a side view of a receiving body and a roof of the vehicle shown in FIG. 1. FIG. 5 schematically shows a top view of the receiving body and the roof shown in FIG. 4. FIG. 6 schematically shows a side view of the roof in FIG. 4. FIG. 7 schematically shows a perspective view of the receiving body in FIG. 4. FIG. 8 schematically shows a perspective view of a box body and a bracket device of the receiving body shown in FIG. 7. FIG. 9 schematically shows an exploded view of the box body and the bracket device shown in FIG. 8. FIG. 10 schematically shows a perspective view of one view angle of the protective cover of the vehicle shown in FIG. 1. FIG. 11 schematically shows a perspective view of another view angle of the protective cover of the vehicle shown in FIG. 1. FIG. 12 schematically shows a variant of the protective cover shown in FIG. 10. FIG. 13 schematically shows another variant of the protective cover shown in FIG. 10. FIG. 14 schematically shows a perspective view of a vehicle provided according to a second embodiment of the first aspect of the present disclosure, in which a protective cover is omitted. FIG. 15 schematically shows a perspective view of a box body, a bracket device and a roof frame of the receiving body shown in FIG. 14. FIG. 16 schematically shows a perspective view of the roof frame shown in FIG. 15. FIG. 17 schematically shows a perspective view of the bracket device shown in FIG. 15. FIG. 18 schematically shows another perspective view of the vehicle shown in FIG. 14, in which a roof assembly is in a folded state. FIG. 19 schematically shows a side view of the vehicle shown in FIG. 14. FIG. 20 schematically shows a variant of a side impact protection block of the vehicle provided according to the second embodiment of the first aspect of the present disclosure. FIG. 21 schematically shows a variant of a mounting manner of a fifth connecting member and a mating connecting member shown in FIG. 20.Figure 22 schematically shows a side view of the vehicle according to the third embodiment of the first aspect of the present disclosure. Figure 23 schematically shows a perspective view of the vehicle according to the fifth embodiment of the first aspect of the present disclosure. Figure 24 schematically shows a perspective view of the box, the bracket device and the roof frame of the accommodating body of the vehicle shown in Figure 23. Figure 25 schematically shows a U1-U1 sectional view of Figure 24. Figure 26 schematically shows a perspective view of the vehicle according to the sixth embodiment of the first aspect of the present disclosure. Figure 27 schematically shows a side view of the vehicle according to the seventh embodiment of the first aspect of the present disclosure. Figure 28 schematically shows a perspective view of the box, the bracket device and the roof frame of the accommodating body of the vehicle according to the eighth embodiment of the first aspect of the present disclosure. Figure 29 schematically shows a U2-U2 sectional view of Figure 28, in which an embodiment of the side impact protection structure is shown. Figure 30 schematically shows a U2-U2 sectional view of Figure 28, in which another embodiment of the side impact protection structure is shown. Figure 31 schematically shows a perspective view of the vehicle according to the ninth embodiment of the first aspect of the present disclosure. Figure 32 schematically shows a perspective view of the side impact protection structure in the vehicle shown in Figure 31. Figure 33 schematically shows a perspective view of the vehicle according to the tenth embodiment of the first aspect of the present disclosure. Figure 34 schematically shows a partial sectional view of the vehicle shown in Figure 33 after the protective cover is installed. Figure 35 schematically shows a right view partial enlarged view of Figure 33, in which the mating connector and the fifth connector are in a connected state. Figure 36 schematically shows a right view partial enlarged view of Figure 33, in which the fifth connector is in a state of not being connected with the mating connector. Figure 37 schematically shows a side view of the fifth connector shown in Figure 36. Figure 38 schematically shows a perspective view of the fifth connector shown in Figure 36. Figure 39 schematically shows a partial enlarged view of the seat cloth, the protective sheet and the cushion after the seat cloth of the vehicle shown in Figure 33 is removed from the box. Figure 40 schematically shows a perspective view of the mating connector shown in Figure 35. Figure 41 schematically shows a partial sectional view of the vehicle according to the eleventh embodiment of the first aspect of the present disclosure, in which the protective cover is installed. Figure 42 schematically shows an A1 partial enlarged view of Figure 41. Figure 43 schematically shows an A2 partial enlarged view of Figure 41. Figure 44 schematically shows a partial perspective view of the box of the accommodating body shown in Figure 41. Figures 45 to 47 schematically show perspective views of the protective cover according to the twelfth embodiment of the first aspect of the present disclosure from different directions. Figure 48 schematically shows the internal structure of the cover body of the protective cover shown in Figure 47. Figures 49 and 50 schematically show perspective views of the two impact protection bodies shown in Figure 48. Figure 51 schematically shows a variant of the impact protection body shown in Figure 50.FIG. 52 schematically illustrates a U4-U4 cross-sectional view of FIG. 51. FIG. 53 schematically illustrates a partial cross-sectional view of the vehicle shown in FIG. 33 with a protective cover installed, wherein the protective cover includes the crash attenuators shown in FIGS. 49 and 51. FIG. 54 schematically illustrates a variation of the cross-sectional view shown in FIG. 52. FIG. 55 schematically illustrates another variation of the cross-sectional view shown in FIG. 52. FIGS. 56-58 schematically illustrate perspective views of different orientations of a protective cover provided in accordance with a thirteenth embodiment of the first aspect of the present disclosure. FIG. 59 schematically illustrates internal structures of the cover body of the protective cover shown in FIG. 58. FIGS. 60-62 schematically illustrate perspective views of three crash attenuators shown in FIG. 59. FIG. 63 schematically illustrates a U5-U5 partial enlarged view of FIG. 59. FIG. 64 schematically illustrates a variation of the crash attenuator shown in FIG. 61. FIG. 65 schematically illustrates a U6-U6 partial enlarged view of FIG. 64. FIG. 66 schematically illustrates another variation of the crash attenuator shown in FIG. 61. FIG. 67 schematically illustrates a U7-U7 partial enlarged view of FIG. 66. FIG. 68 schematically illustrates a partial cross-sectional view of a vehicle provided in accordance with a fourteenth embodiment of the first aspect of the present disclosure, the vehicle having a protective cover installed, wherein the protective cover includes the crash attenuators shown in FIGS. 60, 62, and 64. FIG. 69 is a perspective view schematically illustrating a travel apparatus according to a first embodiment of the second aspect of the present disclosure. FIG. 70 is a side view schematically illustrating a travel apparatus according to a second embodiment of the second aspect of the present disclosure. FIGS. 70A and 70B are perspective views schematically illustrating various designs of attachment portions of a protective device according to embodiments of the present disclosure. FIG. 71 is a side view schematically illustrating a travel apparatus according to a third embodiment of the second aspect of the present disclosure. FIG. 72 is a side view schematically illustrating a travel apparatus according to a fourth embodiment of the second aspect of the present disclosure. FIGS. 73A-73C are side views schematically illustrating a travel apparatus according to a fifth embodiment of the second aspect of the present disclosure. FIGS. 74A and 74B are side views schematically illustrating a travel apparatus according to a sixth embodiment of the second aspect of the present disclosure. FIG. 75 is a side view schematically illustrating a travel apparatus according to a seventh embodiment of the second aspect of the present disclosure. FIG. 76 is a side view schematically illustrating a travel apparatus according to an eighth embodiment of the second aspect of the present disclosure. FIGS. 76A-76C are side views schematically illustrating various designs of the protective device shown in FIG. 76. FIG. 77A is a side view schematically illustrating a travel apparatus according to a ninth embodiment of the second aspect of the present disclosure, and FIG. 77B is a front view schematically illustrating a protective device shown in FIG. 77A attached to a vehicle of the travel apparatus. FIGS. 78A and 78B schematically illustrate a travel apparatus according to a tenth embodiment of the second aspect of the present disclosure.FIGS. 79A and 79B schematically illustrate a travel apparatus according to an eleventh embodiment of the second aspect of the present disclosure. FIGS. 80A to 80C schematically illustrate a travel apparatus according to a twelfth embodiment of the second aspect of the present disclosure. FIGS. 81A and 81B schematically illustrate a travel apparatus according to a thirteenth embodiment of the second aspect of the present disclosure. FIGS. 82A and 82B schematically illustrate a travel apparatus according to a fourteenth embodiment of the second aspect of the present disclosure. FIGS. 83A to 83G schematically illustrate various designs of cross sections of individual plate-like bodies of a protection device according to embodiments of the second aspect of the present disclosure. FIGS. 84A and 84B schematically illustrate various designs of sizes of individual plate-like bodies of a protection device according to embodiments of the second aspect of the present disclosure. FIGS. 85A to 85C schematically illustrate a travel apparatus according to a fifteenth embodiment of the second aspect of the present disclosure. FIGS. 86A to 86C schematically illustrate a travel apparatus according to a sixteenth embodiment of the second aspect of the present disclosure. FIG. 87 is a side view schematically illustrating a vehicle according to a first embodiment of the third aspect of the present disclosure. FIG. 88 is a side view schematically illustrating a vehicle according to a second embodiment of the third aspect of the present disclosure. FIG. 89 is a side view schematically illustrating a vehicle according to a third embodiment of the third aspect of the present disclosure. FIGS. 90A and 90B schematically illustrate a vehicle according to a fourth embodiment of the third aspect of the present disclosure. FIGS. 91 to 93 are side views of a vehicle according to a fifth embodiment of the third aspect of the present disclosure, respectively, which illustrate various designs of a ceiling of the vehicle. FIG. 94 schematically illustrates a perspective view of a box of a pet vehicle according to a first embodiment of the fourth aspect of the present disclosure. FIGS. 95 and 96 schematically illustrate another perspective view of the box illustrated in FIG. 94, in which at least a portion of a second window cloth is separated from the body. FIG. 97 schematically illustrates a perspective view of a pet vehicle mounted on a seat of a vehicle according to the first embodiment of the fourth aspect of the present disclosure. FIG. 98 schematically illustrates a perspective view of a box of a pet vehicle according to a second embodiment of the fourth aspect of the present disclosure.99 schematically shows another three-dimensional view of the box shown in FIG98 , in which the window on one side of the box is in an open state. Explanation of the reference numerals: Carrier 1000 Container body 100 Box 110 Hole structure 1101 Bottom 111 Groove structure 1112 Peripheral wall 112 Outer side 112a Inner side 112b Groove 1121 Accommodating space 113 Fifth connecting member 114 First connecting hole 1140 First buckling body 1141 Protrusion 1142 First connecting tongue 1143 Protective sheet 1181 Pad 1182 Sewing line 1081 Top opening 10 Bracket device 120 First bracket 121 Second bracket 122 Vertical section 1221 Horizontal section 1222 Vertical section 1224 Third bracket 123 Ceiling locking portion 124 Release member 125 Groove 1240 Seat cloth 150 Storage pocket 151 152, 153 sealing member 1531 accommodating bag 155 sewing thread 1501, 1502, 1503, 1504 first connecting member 41 webbing 411 ceiling assembly 200.

[0002] U-shaped bracket 21, roof frame 211, roof 22, roof opening 201, shielding area 221, shielding sheet 2211, edge 22111, 22112, observation area 222, observation sheet 2221, sealing member 223, zipper 2231, 2232, zipper head 2233, extended observation area 224, handle 23, mating connecting member 2335, second connecting hole 23350, second buckle body 23351, recess 23352, second connecting tongue 23353, connecting belt 236, 237, 238, sewing thread 2381, 2382, roof locking device 24, first chain 241, second chain 242, locking member 243, housing 245, skirt 25, handle 29, protective cover 300, cover body 31, outer fabric layer 301, inner fabric layer 302, cloth sheet 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j, 3k, 3m, anti-collision body 311, first anti-collision body 3111, second anti-collision body 3112, sheet material 31121, 31122, 31123, 31124, 31125, third anti-collision body 3113, fourth anti-collision body 3114, sheet material 31141, 31142, 31143, 31145, 31146, 31148, 31149, gap 311420, upper portion 311431, lower portion 311432, middle protrusion 31147, notch 31140, fifth anti-collision body 3115, sheet material 31151, 31152, 31153, strip 31154, middle anti-collision portion 3110, turning portion 312, accommodation space 313, first accommodation space 3131, second accommodation space 3132, third accommodation space 3133, fourth accommodation space 3134, layered space 31341, 31342, fifth accommodation space 3135, spacing layer 315, upper edge 316, sewing thread 317, 318, 319, skirt 35, second connecting member 32, woven belt 33, connecting structure 36, third connecting member 361, fourth connecting member 362, side impact protection structure 500, side impact protection block 5, sheet material portion 511, bending portion 512, buffer block 55, inner side surface 55b, hard sheet material 56, pivot joint 01, side impact contact surface S, travel equipment 61, 62, 63, 64, 65, 66, 67, 68, 68A, 68B, 68C, 69, 610、

[0003] 611, 612, 613, 614, 624, 625 Carrying case 6100, 6200, 6300, 6400, 6500, 6600, 6700, 6800, 6800A,

[0004] 6800B, 6800C 6900, 61000, 61100, 61200, 61300, 61400, 61600A,

[0005] 61600B, 61700, 61800, 61900, 62000, 62100, 62200, 62300, 62400, 62500 Box portion 6102, 6202, 6302, 6402, 6502, 6602, 6702, 6802, 6902, 61002, 61102, 61202, 61302, 61402, 61702, 61802, 61902, 62002, 62102, 62202, 62302, 62402, 62502 Upper periphery 6102A, 6802A Ceiling portion 6104, 6204, 6304, 6404, 6504, 6604, 6704, 6804, 6904,

[0006] 61004, 61104, 61204, 61304, 61404, 6174, 6184, 6194, 62040, 62140,

[0007] 62240, 62340, 62404, 62504 Lower periphery 6104A, 6804A

[0008] U-shaped frame 61742, 61842, 61942, 62042, 62142, 62242, 62342 Cover 61744, 61844, 61944, 62044, 62144, 62244, 62344 Area 61744A, 61744B, 61744C, 61744D, 61744E, 61844A,

[0009] 61844B, 61844C, 61844D, 61844E, 61844F, 61844G, 61844H, 618441,

[0010] 61844J, 61844K, 61944A, 61944B, 61944C, 61944D, 61944E, 62044A,

[0011] 62044B, 62044C, 62044D, 62044E, 62144A, 62144B, 62144C, 62144D,

[0012] 62144E, 62244A, 62244B, 62244C, 62244D, 62244E, 62344A, 62344B,

[0013] 62344C, 62344D, 62344E 62244', 62344' support pole 61746, 61846, 61946, 62046, 62146, 62246, 62346 pivot 61748, 61848, 61948, 62048, 62148, 62248, 62348 carrying handle 6106, 6206, 6306, 6406, 6506, 6606, 6706, 6806, 6906, 61006, 61106, 61206, 61306, 61406, 61706, 61806, 61906, 62006, 62106, 62206, 62306, 62406, 62506 connecting portion 61006A recess 61106A bracket assembly 6108, 6208, 6308, 6408, 6508, 6608, 6708, 6808, 6908, 61008, 61108, 61208, 61308, 61408, 61708, 61808, 61908, 62008, 62108, 62208, 62308, 62408, 62508 clasp assembly 6110, 6210, 6310, 6410, 6510, 6610, 6710, 6810, 6910, 61010, 61110, 61210, 61310, 61410, 61710, 61810, 61910, 62010, 62110, 62210, 62310, 62410, 62510 first attachment portion 6212, 6412, 61112, 61212, 61312, 61412 recess 6312 guard 6101, 6201, 6201A, 6201B, 6301, 6401, 6501, 6601, 6701,

[0014] 6801, 6901, 61001, 61101, 61201, 61301, 61401, 61901, 62001, 62401,

[0015] 62501 first layer 62001A second layer 62001B body 6203, 6203B, 6403, 6503, 6603, 6703, 6803, 6803A, 6803B, 3C, 6903, 61003, 61103, 61203, 61303, 61403, 615A, 615B, 615C, D, 615E, 615F, 615G, 61603A, 61603B, 62403, 62503 layer 6151F, 6152F, 6151G, 6152G, 6153G first portion 61303A, 61403A, 62503A second portion 61303B, 61403B, 62503B vertical recess 68031 recess 69031 magnetic connector 69031A magnetic strip or tape 68031A, 68033A, 68035A horizontal recess 68033 central through-hole 68035 second attachment portion 6205, 6405, 61105, 61205, 61305, 61405 hook face portion 6205A magnetic component 6205B block 6305 pivot 6505 link member 6605, 61005 connecting rod 6705 guide member 6507 link portion 6607, 61007 connection 6509 securing strap 61009, 61109, 61209, 61309, 61409, 62409 connecting member 61011, 61111, 61311, 62411 securing member 61013, 61113, 61313, 61413 handle 61314 connecting portion 61414A, 62414A connecting strap 62414B ring 61215 attachment portion 61217 hook face 61217A ring face 61217B connector 6820, 6820A, 6820B, 6820C, 6920, 61720 pivot 61762, 61862, 61962, 62062, 62162, 62262 base 6750 seat 630 headrest 630A longitudinal direction A6 lateral direction B6 box body 7110, 7210 body 7111, 7211 side support 71111, 72111 first sub-support 71111a, 72111a second sub-support 71111b, 72111b connecting tab 71111c upper support 71112, 72112 first tab 71112a, 72112a second tab 71112b, 72112bThird sheet member 71112c, 72112c Third connecting member 72118 Fourth connecting member 72119 Bottom support member 7112, 7212 Handle 7115 First window 7116, 7216 First window cloth 7116a, 7216a Second window 7117, 7217 Second window cloth 7117a First portion 71171a Second portion 71172a Side door 7217b Fixed belt assembly 7300 DETAILED DESCRIPTION In the following, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. While the present disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that there is no intent to limit the present disclosure to the particular embodiments described herein, but on the contrary, 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 below with reference to accompanying drawings. The first aspect of the present disclosure provides a carrier, specific embodiments of which will be described below with reference to the accompanying drawings. FIGS. 1 to 3 show the structure of a carrier 1000 provided according to the first embodiment of the first aspect of the present disclosure, which can be but is not limited to a pet carrier. The carrier 1000 includes a containing body 100, a canopy assembly 200, and a protective cover 300. FIGS. 4 and 5 show the structure of the containing body 100 and the canopy assembly 200 installed together, and the canopy assembly 200 is a fully enclosed canopy. FIG. 6 shows the structure of the canopy assembly 200 in an unfolded state. FIGS. 7 to 9 show the structure of the containing body 100. FIGS. 10 and 13 show the structure of the protective cover 300. Referring to FIG. 7, in some embodiments, the containing body 100 is, for example, a box-type structure defining a containing space 113 for accommodating a pet, the containing space 113 having a top opening 10 through which the pet can enter the containing space 113. FIGS. 7 to 9 show an exemplary structure of the containing body 100, which includes, for example, a box body 110, a bracket device (also referred to as a “bracket assembly”) 120, and a seat cloth 150. In some embodiments, the containing body 100 has, for example, a left-right symmetrical and front-back symmetrical structure. It should be noted that the “seat cloth” herein is not limited to cloth, which can be understood as a “covering”, for example, fabric, sponge, plastic, etc., and the present disclosure is not limited thereto. Referring to FIG. 9, the box body 110 includes, for example, a peripheral wall 112 and a bottom 111, which define the containing space 113 and the top opening 10. In some embodiments, the box body 110 has, for example, a left-right symmetrical and front-back symmetrical structure. It should be noted that the “seat cloth” herein is not limited to cloth, which can be understood as a “covering”, for example, fabric, sponge, plastic, etc., and the present disclosure is not limited thereto.110may be made of foamed material or other suitable material. Referring to FIGS. 8 and 9, the bracket device 120 is used to support the box 110 so that the box 110 has sufficient structural strength. In some embodiments, the bracket device 120 defines a space to accommodate the box 110, and the bracket device 120 enhances the structural strength of the box 110 outside the box 110. The bracket device 120 can be a frame structure made of metal. In some embodiments, the bracket device 120 includes, for example, a first bracket 121, a second bracket 122, and a third bracket 123. The first bracket 121 and the third bracket 123 are generally parallel and have a ring structure. The first bracket 121 and the third bracket 123 are connected by the second bracket 122. The second bracket 122 can have various implementations as long as it can connect the first bracket 121 and the third bracket 123. As can be seen from FIG. 9, in the present embodiment, two second brackets 122 are arranged in the front-back direction, and each second bracket 122 has a vertical segment 1221 and a horizontal segment 1222 in a U-shaped structure. The vertical segment 1221 is connected to the first bracket 121, and the horizontal segment 1222 extends in the left-right direction and is connected to the third bracket 123. Referring to FIG. 8, when the box 110 is located in the space defined by the bracket device 120, the first bracket 121 is engaged with the outer surface of the peripheral wall 112 of the box 110, and the first bracket 121 is adjacent to the top opening 10. The vertical segment 1221 of the second bracket 122 is engaged with the outer surface of the peripheral wall 112 of the box 110, and the horizontal segment 1222 of the second bracket 122 is engaged with the outer surface of the bottom 111 of the box 110. The third bracket 123 is located below the box 110, and the third bracket 123 can be detachably connected to a clamping seat (not shown in the figure) on a cart, so that the carrier 1000 can be installed on the cart. Of course, in some alternative embodiments, the bracket device 120 can also have other implementations without being limited to the above description. As can be seen from FIG. 9, the first bracket 121 and the third bracket 123 are, for example, rectangular or other suitable shapes. When the first bracket 121 and the third bracket 123 are rectangular, both of them include two opposite long rods and two opposite short rods. In the present embodiment, for ease of description, the extension direction of the long rod is referred to as the front-back direction (which can also be referred to as the longitudinal direction), the extension direction of the short rod is referred to as the left-right direction (which can also be referred to as the transverse direction), and the "front" and "back" directions are schematically shown by arrows F and B, and the "left" and "right" directions are schematically shown by arrows L and R.The directions are defined only to make the description of the embodiments of the present disclosure clearer, and are not intended to limit the protection scope of the present disclosure. Generally, when the pet is accommodated in the accommodation space 113, the front direction corresponds to the head direction of the pet, and the rear direction corresponds to the tail direction of the pet; or the front direction corresponds to the tail direction of the pet, and the rear direction corresponds to the head direction of the pet. Referring to FIG. 7, the seat cloth 150, for example, wraps the inner and outer surfaces of the box body 110, so that the accommodation body 100 has a neat appearance. In some embodiments, when the seat cloth 150 is wrapped on the box body 110, the third support 123 can be exposed. The area of the seat cloth 150 used to contact the pet can include a sponge interlayer or other structure having a cushioning effect. Referring to FIGS. 8 and 9, the peripheral wall 112 of the box body 110 can be provided with a groove 1121, and the vertical section 1221 of the second support 122 can be embedded in the groove 1121 without protruding relative to the surface of the peripheral wall 112, so that the seat cloth 150 is attached to the box body 110, and the cutting difficulty of the seat cloth 150 can be reduced. In some embodiments, the vertical section 1221 of the second support 122 can be partially embedded in the groove 1121 and partially protrude relative to the surface of the peripheral wall 112. In addition, a wider handrail (for example, made of plastic, not shown in the figure) can also be mounted on the first support 121, and the seat cloth 150 can also wrap the handrail. Referring to FIG. 7, in some embodiments, the left and right sides of the accommodation body 100 are respectively provided with two first connecting members 41, and the two first connecting members 41 on the same side of the accommodation body 100 are arranged in the front-rear direction. Each first connecting member 41 can be, for example, a ring structure (for example, a metal ring) located outside the seat cloth 150, and each first connecting member 41 can be connected to the seat cloth 150 by a webbing 411. Of course, the connection mode of each first connecting member 41 and the accommodation body 100 is not limited to the above example. For example, in some embodiments not shown, two connecting columns (not shown in the figure) can be respectively arranged on the two long rods of the first support 121, each connecting column has an end portion exposed from the seat cloth 150, and the end portion is used to connect with the first connecting member 41. The function of each first connecting member 41 will be described below. Referring to FIGS. 4 to 6, the roof assembly 200 is installed on the accommodation body 100 and has an expanded state of closing the top opening 10. The roof assembly 200 is used for shading, and can also play a role in preventing dust, mosquitoes and foreign matters from entering the accommodation space 113. The bottom shape of the roof assembly 200 matches the shape of the top opening 10 of the accommodation body 100. In some embodiments, the roof assembly 200 can beThe bottom of the canopy assembly 200 can be detachably connected with the top of the housing body 100 by a canopy locking device 24, such that the canopy assembly 200 is detachably buckled at the top opening 10 of the housing body 100. In some embodiments, the canopy locking device 24 can be, for example, a zipper, a first chain 241 (see FIG. 6) of the zipper is disposed, for example, around the bottom of the canopy assembly 200, and a second chain 242 (see FIG. 7) of the zipper is disposed, for example, around the top of the housing body 100, and the second chain 242 is connected with the seat cloth 150, for example. Of course, in other embodiments, the canopy locking device 24 can also have other implementations, such as buckles, magic tapes, etc. After the canopy assembly 200 is removed from the housing body 100, the canopy assembly 200 can be folded for storage. Referring to FIG. 4, in some embodiments, the bottom of the canopy assembly 200 can also be provided with a skirt 25, which can shield the canopy locking device 24 when the canopy assembly 200 is in an unfolded state. Referring to FIGS. 4 and 6, in some embodiments, the canopy assembly 200 can include a plurality of U-shaped supports 21 (also referred to as “U-shaped support rods” or “support rods”) and a canopy 22 connected with the U-shaped supports 21, the canopy 22 including the skirt 25 described above, for example. When the canopy assembly 200 is in an unfolded state, the two ends of the U-shaped supports 21 correspond to the left and right sides of the housing body 100, respectively, and the canopy 22 is supported by the U-shaped supports 21 and arches upward relative to the housing body 100. In some embodiments, the canopy 22 can include a shielding area 221 and an observation area 222. Referring to FIG. 4, when the canopy assembly 200 is in an unfolded state, one of the shielding area 221 and the observation area 222 is close to the front end of the housing body 100 (corresponding to the front portion of the canopy assembly 200 and the canopy 22), and the other is close to the rear end of the housing body 100 (corresponding to the rear portion of the canopy assembly 200 and the canopy 22). The shielding area 221 is made of, for example, a light-blocking fabric, which can block sunlight. The observation area 222 is made of, for example, a light-transmitting mesh fabric or a transparent material, through which the user can observe the internal situation of the housing body 100. When the observation area 222 is made of a transparent material (such as a plastic film), the observation area 222 can also be configured with a breathable structure. Referring to FIGS. 4 and 6, in some embodiments, the shielding area 221 of the canopy 22 can include a plurality of shielding pieces 2211, and the junction of each adjacent two shielding pieces 2211 is connected with a U-shaped support 21. The observation area 222 can include a plurality of observation pieces 2221, and the junction of each adjacent two observation pieces 2221 is connected with a U-shaped support 21.The joint of the shielding sheet 2211 and the viewing sheet 2221 is connected with a U-shaped bracket 21. In some embodiments, the area of the shielding area 221 is larger than the area of the viewing area 222, and a handle 23 can be arranged on the shielding area 221, for example, at the top of the ceiling 22. Referring to FIGS. 4 and 6, in some embodiments, the ceiling 22 can be provided with a ceiling opening 201, and the ceiling opening 201 is provided with a sealing member 223 capable of closing or opening the ceiling opening 201. In FIGS. 4 and 6, the ceiling opening 201 is closed by the sealing member 223, and the ceiling 22 is in the unfolded state. When the sealing member 223 opens the ceiling opening 201, a part of the ceiling 22 can be folded in the direction of the arrow T1, and another part of the ceiling 22 can be folded in the direction of the arrow T2, so that the ceiling opening 201 is enlarged (that is, the accommodation space is exposed), and the ceiling assembly 200 is switched to the open state. When the ceiling assembly 200 is in the open state, the user can place the pet into the accommodation space 113 or take the pet out of the accommodation space 113 through the ceiling opening 201 without taking the ceiling assembly 200 as a whole from the accommodation body 100. Referring to FIGS. 1 to 3, in some embodiments, the protective cover 300 is connected with the accommodation body 100, and the protective cover 300 is used to cover at least a part of the area of the ceiling assembly 200 to protect the ceiling assembly 200 and avoid damage to the ceiling assembly 200 in the unfolded state when it is impacted. In other words, the protective cover 300 in the embodiment can also be referred to as a “protective device” or as an example or part of a “protective device”. In some embodiments, the protective cover 300 can cover the area of the ceiling assembly 200 with weak structural strength and poor impact resistance. For the ceiling, the structural strength of the shielding area 221 is generally higher than that of the viewing area 222, and therefore, the protective cover 300 can cover the viewing area 222, for example, to improve the impact resistance of the viewing area 222 and protect the viewing area 222 from damage. It can be understood that a part of the viewing area 222 can not be covered by the cover body 31 for air circulation. Of course, in some alternative embodiments, the protective cover 300 can also be used to cover the shielding area 221 to improve the impact resistance of the shielding area 221. FIGS. 3, 10 and 11 show an exemplary embodiment of the protective cover 300. The protective cover 300 can include a cover body 31 and two second connecting members 32. The cover body 31 has a shape with narrow ends and a wide middle.When the protective cover 300 is in the use state shown in FIG. 1, the cover body 31 is arched, and the two ends of the cover body 31 correspond to the left and right sides of the accommodating body 100. The cover body 31 can include at least one material layer. In some embodiments, the material layer of the cover body 31 can include, for example, an inner fabric layer made of fabric and an outer fabric layer, the inner fabric layer facing the ceiling assembly 200, and the outer fabric layer facing away from the ceiling assembly 200. A sponge layer or other cushioning material layer can be sandwiched between the inner fabric layer and the outer fabric layer. Of course, in some embodiments, the material layer of the cover body 31 can include a single fabric layer made of fabric. Two second connectors 32 are arranged at the two ends of the cover body 31, one of the two second connectors 32 can be selectively detachably connected with one of the two first connectors 41 on the left side of the accommodating body 100, and the other second connector 32 can be selectively detachably connected with one of the two first connectors 41 on the right side of the accommodating body 100, so that the cover body 31 covers the observation area 222 on the front or rear of the ceiling assembly 200 laterally. Referring to FIG. 10, in some embodiments, each second connector 32 can be fixed to the opposite ends of the cover body 31 by a webbing 33, for example. The second connector 32 is, for example, a carabiner, which can be easily connected with the loop-shaped structure of the first connector 41. In some alternative embodiments, the webbing 33 is, for example, an elastic band, which is tensioned when each second connector 32 is connected with the corresponding first connector 41, so as to tightly attach the cover body 31 to the ceiling assembly 200, thereby effectively enhancing the impact resistance of the covered area of the ceiling assembly 200. In addition, in some alternative embodiments, the number of the first connectors 41 arranged on the left and right sides of the accommodating body 100 is not limited to two, and the number of the first connectors 41 can be one or more than two. When the number of the first connectors 41 is two or more than two, even if the distance between the second connectors 32 at the two ends of the cover body 31 of different protective covers 300 is different, by selectively connecting each second connector 32 with the plurality of first connectors 41, the cover body 31 can be attached to the covered area of the ceiling assembly 200, thereby improving the versatility of the accommodating body 100 and the protective cover 300. Referring to FIGS. 1, 3, 4, 10 and 11, the shapes of the surfaces of the cover body 31 and the ceiling 22 that contact each other are matched. More specifically, taking the cover body 31 covering the observation area 222 as an example, the U-shaped bracket 21 between the adjacent observation pieces 2221 of the observation area 222 is convex outward relative to the observation piece 2221. The cover body 31 can be provided with a turning portion 312 corresponding to the position of the U-shaped bracket 21. When the protective cover 300 is in the use state shown in FIG. 1, the turning portion 312 of the cover body 31 is in contact with the U-shaped bracket 21, so that the cover body 31 is tightly attached to the observation area 222.300 is connected with the accommodating body 100, the turning part 312 and the U-shaped support 21 are matched, and the cover body 31 can be effectively prevented from sliding downward relative to the ceiling assembly 200. In some embodiments, the cover body 31 can further include a skirt 35, which can be wrapped outside the top opening 10 of the accommodating body 100 to assist in positioning the relative position of the cover body 31 and the ceiling 22. Referring to FIGS. 10 and 11, the protective cover 300 (i.e., the protection device) includes a bumper 311. Specifically, in some embodiments, the transverse middle region of the cover body 31 can be provided with the bumper 311 (shown by a dashed line in the figure) to locally enhance the impact resistance (bumper protection performance) of the region of the ceiling assembly 200 most susceptible to impact. The bumper 311 can be a single-layer structure or a multi-layer structure, and the bumper 311 can be connected to the surface of the cover body 31 facing the ceiling 22 or can be clamped between the outer fabric layer and the inner fabric layer of the cover body 31. When the bumper 311 is a single-layer structure, it can be made of inert memory foam or other suitable materials, for example. When the bumper 311 is a multi-layer structure, it can be a combination of an EPP (expanded polypropylene) material layer, an EPS (expanded polystyrene) material layer, and an EPE (expanded polyethylene, also known as pearl wool) material layer, a combination of an inert memory foam material layer and a PE (polyethylene) material layer, or a combination of other suitable material layers. Of course, in some embodiments, the bumper 311 is not limited to being provided in the transverse middle region of the cover body 31, and the region of the cover body 31 covering the ceiling assembly 200 can all be provided with the bumper 311. Referring to FIGS. 12 and 13, in some embodiments, the entire skirt 35 or the transverse middle region thereof can also be provided with the bumper 311. Referring again to FIG. 1, in some embodiments, a connecting structure 36, for example including a third connecting piece 361 and a fourth connecting piece 362, can be provided between the upper edge 316 of the cover body 31 of the protective cover 300 and the ceiling assembly 200. The third connecting piece 361 is connected with the ceiling assembly 200, for example, with the ceiling 22 or the U-shaped support 21. The fourth connecting piece 362 is connected with the upper edge 316 of the cover body 31. The third connecting piece 361 and the fourth connecting piece 362 are detachably connected, which can further prevent the cover body 31 from sliding downward relative to the ceiling assembly 200. The third connecting piece 361 can be a metal ring or a cloth ring, for example, and the fourth connecting piece 362 can be a hook or a cloth belt, which can be closed into a ring shape after being wound around the third connecting piece 361. In some embodiments not shown,In addition, the carrier 1000 provided by the first embodiment of the first aspect of the present disclosure can be modified as follows. I. In some embodiments, the box 110 of the accommodating body 100 can comprise a plastic shell and can not be provided with the support device 120, and the seat cloth 150 can not completely wrap the box 110 but only wrap a part (e.g., the surface of the accommodating space 113) of the box 110. The box 110 can be provided with a hard handle, and the two ends of the handle are respectively pivotally connected to the middle portions of the two opposite long rods of the first support 121. At this time, the carrier 1000 can not be provided with the handle 23 on the top assembly 200. In addition, in some embodiments, the two ends of an unshown shoulder strap can be detachably connected to the idle first connectors 41, and the shoulder strap can be worn on the user's shoulders to facilitate the user to carry the carrier 1000. II. In some embodiments, the bottom of the top assembly 200 is connected to the top of the accommodating body 100, for example, by sewing, so that the top assembly 200 cannot be detached from the accommodating body 100. In some embodiments, the front and rear portions of the top 22 can each be provided with an observation area 222, and the shielding area 221 is located in the middle of the top 22. At this time, the protective cover 300 can be configured to cover the observation areas 222 of the front and rear portions of the top 22, respectively. It can be understood that the protective cover 300 not only can improve the impact resistance of the top 22, but also can play a role in shading. In some embodiments, the carrier 1000 can be provided with two or more protective covers 300, and the protective cover 300 can cover not only the observation area 222 but also the shielding area 221 to improve the impact resistance of each covered area of the top assembly 200. In some embodiments, the shielding area 221 of the top 22 can also be made of a light-transmitting mesh fabric or a transparent material, and the protective cover 300 can be made into a lid to cover the top 22. III. In some embodiments, the protective cover 300 can be detachably connected to the accommodating body 100 and the top assembly 200, or the protective cover 300 can be connected only to the top assembly 200. As long as the protective cover 300 can cover the area with weak structural strength of the top assembly 200 and improve the impact resistance of the area, it is acceptable. For example, in some embodiments, the top assembly 200 can be provided with one or more first connectors 41, which are, for example, metal rings (e.g., D-shaped rings) arranged along the skirt 25, a whole strip of Velcro, or multiple snaps or other suitable structures, and the first connectors 41 can be detached together with the top assembly 200; the skirt 35 of the cover body 31 can be provided with one or more second connectors 32, which can be a strip of Velcro or other suitable structures arranged along the skirt 35.35A whole strip of Velcro or multiple snaps or other suitable structures are provided. The first connector 41 and the second connector 32 are detachably connected, so that the protective cover 300 is detachably connected with the ceiling assembly 200. The first aspect second embodiment FIG. 14 shows the structure of the carrier 1000 according to the second embodiment of the first aspect of the present disclosure, which is similar to the first embodiment described above, including the containing body 100, the ceiling assembly 200 and the protective cover 300 which is not shown. This embodiment mainly modifies the structure of the containing body 100 and the ceiling assembly 200. In the case of no conflict, the structure of the components in this embodiment and the connection relationship between the components can be referred to the description in the first embodiment above, and the differences between this embodiment and the first embodiment described above will be mainly described below. The carrier 1000 can be placed on a vehicle seat and can be fixed on a vehicle seat (not shown in the figure) by any suitable structure. It can be understood that when the carrier 1000 is placed on the vehicle seat, the front-to-back direction of the rectangular carrier 1000 can correspond to the left-to-right direction of the vehicle seat. Referring to FIG. 14, the carrier 1000 can also be provided with a side impact protection structure (also referred to as a "protection device" or as an example or part of a "protection device"), which includes at least one side impact protection block 5, for example. When the side impact protection block 5 is in a use state (in which the side impact protection block 5 can buffer impact from the side, such as from the vehicle door), the side impact protection block 5 corresponds to the side of the containing body 100. More specifically, the middle position of at least one of the front and rear sides of the containing body 100 can be provided with a side impact protection block 5. By slowing down the side impact through the side impact protection block 5, the safety of the pet in the containing space 113 is protected. The side impact protection block 5 can be directly connected with the containing body 100, or can be connected with the ceiling assembly 200. As long as the side impact protection block 5 corresponds to the side of the containing body 100 in the use state and can transmit the side impact received to the containing body 100. It can be understood that when the side impact protection block 5 is connected with the ceiling assembly 200, the side impact protection block 5 can be connected to the front and / or rear of the ceiling assembly 200, and when the ceiling assembly 200 is in the unfolded state and connected with the containing body 100, the side impact protection block 5 is located at the side of the containing body 100, so as to play a side impact protection role. Referring to FIG. 14, FIG. 16 and FIG. 18, in some embodiments, the plurality of U-shaped supports 21 of the ceiling assembly 200 further include two ceiling frames (also referred to as pivot segments) 211 fixed on the periphery of the ceiling 22. Referring to FIG. 15 and FIG. 16, the two ceiling frames 211 are connected with the U-shaped supports 21 by a plurality of hinges 212.The opposite ends of the 211 are pivotally connected to two ceiling locking devices 24, respectively, so that each ceiling frame 211 can rotate relative to the ceiling locking device 24 around the pivot point 01. Each ceiling locking device 24 is used to detachably connect with the ceiling locking portion 124 on the left and right sides of the accommodation body 100. FIGS. 16 and 17 show an exemplary embodiment of the ceiling locking device 24 and the ceiling locking portion 124. The ceiling locking device 24 can include a locking piece 243 and a housing (also referred to as a locking segment) 245, and the locking piece 243 is installed in the housing 245. Two ceiling locking portions 124 are installed on the first support 121, for example, and more specifically, on the middle of the long rod of the first support 121. The ceiling locking portion 124 has a slot 1240 for accommodating the locking piece 243, and a mating locking piece (not shown in the figure) can be provided in the slot 1240, and the locking piece 243 can be engaged with the mating locking piece to lock the relative position of the ceiling locking position 24 and the ceiling locking portion 124. It should be noted that in some embodiments, the seat cloth 150 can wrap the ceiling locking portion 124, and the seat cloth 150 can be provided with an opening corresponding to the position of the slot 1240. One of the ceiling locking device 24 and the ceiling locking portion 124 can be provided with a release piece for releasing the engagement relationship between the locking piece 243 and the mating locking piece. In some embodiments, the release piece can be provided on the ceiling locking device 24 and is operatively connected with the locking piece 243. In this embodiment, the release piece 125 is provided on the ceiling locking portion 124, for example, and the release piece 125 is operatively connected with the mating locking piece. When it is needed to remove the ceiling assembly 200 from the accommodation body 100, the mating locking piece is driven by the release piece 125 so that the mating locking piece is disengaged from the locking piece 243. In some embodiments, a segment position adjustment structure, for example, including a wave-shaped end surface tooth, can be provided between the end of each ceiling frame 211 and the housing 245, so that each ceiling frame 211 can be kept at different angles relative to the housing 245. In combination with FIGS. 14 and 15, when the ceiling assembly 200 is in the unfolded state, the two ceiling frames 211 are symmetrically buckled at the top opening 10 of the accommodation body 100, and more specifically, are sleeved on the outside of the box body 110 and above the first support 121 of the support device 120. Referring to FIG. 18, when it is needed to open the ceiling assembly 200 in order to put the pet into the accommodation space 113, any ceiling frame 211 can be turned up. In combination with FIGS. 14 and 18, in some embodiments, the front and rear sides of the accommodation body 100 are respectively provided with a fifth connecting piece 114, and the ceilingThe front and rear of the ceiling 22 are provided with a corresponding fifth connecting piece 114 and a corresponding matching connecting piece 2335, and the fifth connecting piece 114 and the corresponding matching connecting piece 2335 are detachably connected. When the fifth connecting piece 114 and the matching connecting piece 2335 are connected, the ceiling frame 211 is prevented from being accidentally turned up to cause the ceiling assembly 200 to be accidentally opened, thereby keeping the ceiling assembly 200 in the unfolded state. When it is needed to remove the ceiling assembly 200 from the containing body 100, the connection between the fifth connecting piece 114 and the matching connecting piece 2335 is released. In some embodiments, one of the fifth connecting piece 114 and the matching connecting piece 2335 can be a male connecting piece, and the other can be a female connecting piece. When the male connecting piece and the female connecting piece are connected, the ceiling assembly 200 is kept in the unfolded state. The male connecting piece and the female connecting piece can be, but are not limited to, a magnetic buckle assembly and a buckle assembly. Referring to FIG. 18, in some embodiments, the side impact protection block 5 is attached to the matching connecting piece 2335. In some alternative embodiments, the side impact protection block 5 can be attached to the fifth connecting piece 114. In some embodiments, the matching connecting piece 2335 can be connected to the ceiling 22 through a connecting belt 236, and the fifth connecting piece 114 can be fixed on the seat cloth 150 or can be directly fixed on the box body 110 and exposed by the seat cloth 150. Referring to FIG. 14, when the matching connecting piece 2335 is connected to the fifth connecting piece 114, the matching connecting piece 2335 is located outside the fifth connecting piece 114, and the side impact protection block 5 can be arranged on the matching connecting piece 2335 and protrude outward from the shell of the matching connecting piece 2335. Referring to FIG. 19, in some embodiments, the position of the side impact protection block 5 corresponds to the first support 121. Of course, in some embodiments, the position of the side impact protection block 5 can not correspond to the support device 120 but directly correspond to the box body 110. In some embodiments, when the ceiling assembly 200 is in the unfolded state and the matching connecting piece 2335 and the fifth connecting piece 114 are not connected, the skirt 25 can block the fifth connecting piece 114. When it is needed to connect the matching connecting piece 2335 and the fifth connecting piece 114, the skirt 25 can be moved to expose the fifth connecting piece 114, so that the fifth connecting piece 114 is connected to the matching connecting piece 2335. In some embodiments, the position of the skirt 25 corresponding to the fifth connecting piece 114 can be provided with an opening for exposing the fifth connecting piece 114. Of course, in some embodiments, the ceiling assembly 200 can not be provided with the skirt 25. Referring to FIG. 20, in some embodiments, the side impact protection block 5 can be integrally formed with the matching connecting piece 2335. Referring to FIG. 21, in some embodiments,The mating connector 2335 (for example, a male buckle in this case) can be directly connected with the roof 22 (for example, the skirt 25); the fifth connector 114 (for example, a female buckle in this case) can be connected with the accommodating body 100, and the fifth connector 114 can be connected to the seat cloth 150 of the accommodating body 100 or the box body 110 through the connecting belt 237. The side impact protection block 5 is arranged on the fifth connector 114. Referring to FIG. 21, when the mating connector 2335 is connected with the fifth connector 114, the fifth connector 114 is located outside the mating connector 2335, and the side impact protection block 5 can be arranged on the fifth connector 114 and protrude outward from the shell of the fifth connector 114. Of course, in some embodiments, the side impact protection block 5 can be integrally formed with the fifth connector 114. FIG. 22 shows the structure of the carrier 1000 according to the third embodiment of the first aspect of the present disclosure, and the main modification of the support device 120 in the second embodiment described above is made in this embodiment. In the case of no conflict, the structure of the components and the connection relationship between the components in this embodiment can be referred to the description in the second embodiment above, and the differences between this embodiment and the second embodiment described above will be mainly described below. Referring to FIG. 22, in some embodiments, the support device 120 adds an additional second support 122 between the first support 121 and the third support 123 on the basis of the support device 120 described in the second embodiment above. The additional second support 122, for example, includes a horizontal segment (not shown in the figure) and a vertical segment 1224 connected with each other, the horizontal segment is connected with the short rod of the third support 123, that is, the horizontal segment extends in the longitudinal direction (that is, the extension direction of the long rod), and the vertical segment 1224 is connected with the short rod of the first support 121, specifically, connected between the horizontal segment and the short rod of the first support 121. The vertical segment 1224 corresponds to the side of the box body 110, more specifically, the side of the box body 110 can be provided with a groove (not shown in the figure), and the vertical segment 1224 can be embedded in the groove without protruding relative to the surface of the peripheral wall 112. Alternatively, in some embodiments, the vertical segment 1224 can be partially embedded in the groove and partially protrude relative to the surface of the peripheral wall 112. Referring to FIG. 22, in some embodiments, the position of the side impact protection block 5 can correspond to the vertical segment 1224, so that the impact received by the side impact protection block 5 can be transferred to the vertical segment 1224.The side impact protection block 5 protruding outward from the housing of the self-mating connector 2335 in the second embodiment or the housing of the fifth connector 114 is omitted. The structure of the components in this embodiment and the connection relationship between the components can be referred to the description in the second embodiment above without conflict. The differences between this embodiment and the second embodiment above are mainly described below. In this embodiment, the fifth connector 114 can be fixed on the seat cloth 150 and directly correspond to the box body 110 (or the fifth connector 114 is directly fixed on the box body 110 and exposed by the seat cloth 150), so that the fifth connector 114 does not correspond to the bracket device 120. The fifth connector 114 and the mating connector 2335 can be a magnetic buckle assembly. The mating connector 2335 can be connected with the ceiling assembly 200 (for example, the ceiling 22) through the connecting belt 236. After the mating connector 2335 is turned downward and connected with the fifth connector 114, the aforementioned protective cover 300 is covered on the ceiling assembly 200, and the protective cover 300 can cover the mating connector 2335 and the fifth connector 114. It can be understood in combination with the above that when the carrier 1000 is installed on the vehicle seat, the left side or the right side of the containing body 100 abuts against the vehicle seat, and the front side or the back side of the containing body 100 faces the door. When the carrier 1000 installed on the vehicle seat is subjected to side impact (that is, when the front side or the back side of the containing body 100 is impacted), the impact sequence of the carrier 1000 is in turn the protective cover 300, the magnetic buckle assembly (the mating connector 2335 and the fifth connector 114), and the box body (for example, made of foamed material) 110. In some embodiments, the protective cover 300 in the use state does not cover the magnetic buckle assembly, and when the carrier 1000 installed on the vehicle seat is subjected to side impact, the impact sequence of the carrier 1000 is in turn the magnetic buckle assembly (the mating connector 2335 and the fifth connector 114), and the box body (for example, made of foamed material) 110. The magnetic buckle assembly in this embodiment serves as a side impact protection block (side impact protection structure), which can be used without additional side impact protection blocks, which is conducive to reducing costs. Of course, in some embodiments, the fifth connector 114 can be fixed on the seat cloth 150, and the fifth connector 114 corresponds to the bracket device 120, more specifically, for example, corresponds to the first bracket 121 (refer to FIG. 19). The mating connector 2335 is connected with the ceiling assembly 200, more specifically, the mating connector 2335 can be connected with the ceiling 22 through the connecting belt 236. The protective cover 300 can be covered on the mating connector 2335 and the fifth connector 114 connected with each other. When the carrier 100 is installed on the vehicle seat and subjected to side impact, the impact sequence of the carrierThe impact sequence of the 1000 is in turn the protective cover 300, the magnetic buckle assembly (the matching connector 2335 and the fifth connector 114), and the support device 120. FIG. 23 shows a perspective view of a carrier 1000, for example, including a containing body 100 and a canopy assembly 200, according to the fifth embodiment of the first aspect of the present disclosure. The carrier 1000 can be configured with or without the protective cover 300 in the above embodiments. The structure of the containing body 100 and the canopy assembly 200 of the present embodiment can refer to the description in the second embodiment described above, and the differences between the present embodiment and the second embodiment will be mainly described below. Referring to FIG. 23, the containing body 100 is provided with a fifth connector 114 on each of the front and rear sides. The fifth connector 114 can be fixed on the seat cloth 150 or can be directly fixed on the box body 110 and exposed by the seat cloth 150. The canopy assembly 200 is provided with a matching connector 2335 corresponding to each fifth connector 114, which is connected to the canopy 22 of the canopy assembly 200, for example, by a connecting band 236. As described in the second embodiment, the fifth connector 114 and the matching connector 2335 are detachably connected. When the fifth connector 114 and the matching connector 2335 are connected, the canopy frame 211 can be prevented from accidentally turning upward to cause the canopy assembly 200 to be accidentally opened, thereby keeping the canopy assembly 200 in the unfolded state. When it is necessary to remove the canopy assembly 200 from the containing body 100, the connection between the fifth connector 114 and the matching connector 2335 is released. In some embodiments, one of the fifth connector 114 and the matching connector 2335 can be a male connector, and the other can be a female connector. When the male connector and the female connector are connected, the canopy assembly 200 is kept in the unfolded state. The male connector and the female connector can be, but are not limited to, a magnetic buckle assembly, a buckle assembly that match each other. As can be seen from FIG. 23, in some embodiments, the carrier 1000 can include a side impact protection structure 500 (also referred to as a "protection device" or as an example or part of the "protection device") which can be provided on the containing body 100 and / or the canopy assembly 200, for example, including a side impact protection block 5. When the carrier 1000 is in the use state shown in FIG. 23, the canopy assembly 200 is in the unfolded state, and the side impact protection block 5 is in the use state and corresponds to the side of the containing body 100 (more specifically, at least one of the front and rear sides of the containing body 100). Referring to FIG. 24, when the carrier 1000 is in the use state shown in FIG. 24, the canopy assembly 200 is in the folded state, and the side impact protection block 5 is in the use state and corresponds to the side of the containing body 100 (more specifically, at least one of the front and rear sides of the containing body 100).1000When fixed on a vehicle seat and subjected to a side impact, the side impact protection block 5 can reduce the impact of a side impact (e.g. an impact from a vehicle door) on the accommodation body 100 (especially the box body 110), ensuring the side safety of the pet in the accommodation space 113. The fitting connector 2335 is connected to the roof 22 by a connecting band 236 in FIG. 23. When the fitting connector 2335 and the fifth connector 114 are connected, the fitting connector 2335 is located outside the fifth connector 114. The side impact protection structure 500 includes, for example, the side impact protection block 5 integrated on the shell of the fitting connector 2335. That is, the side impact protection block 5 is attached together with the shell of the fitting connector 2335 or integrally formed or directly formed by the shell of the fitting connector 2335. Alternatively, in some embodiments, the side impact protection block 5 can protrude outward relative to the shell of the fitting connector 2335 as described in the second embodiment of the present aspect. In some embodiments, the shell of the fitting connector 2335 can be used as the side impact protection block 5 by changing the size of the shell of the fitting connector 2335. In some embodiments, for example, in combination with reference to FIG. 21, the fitting connector 2335 is connected, for example, directly to the roof 22 of the roof assembly 200, and the fifth connector 114 can be connected to the seat cloth 150 of the accommodation body 100 or the box body 110 by a connecting band 237. When the fitting connector 2335 and the fifth connector 114 are connected, the fifth connector 114 is located outside the fitting connector 2335. The side impact protection structure 500 can include the side impact protection block 5 integrated on the shell of the fifth connector 114, that is, the side impact protection block 5 is attached together with the shell of the fifth connector 114 or integrally formed. Similarly, the shell of the fifth connector 114 can be used as the side impact protection block 5 by changing the size of the shell of the fifth connector 114. Alternatively, the side impact protection block 5 can protrude outward relative to the shell of the fifth connector 114. In some embodiments, as shown in FIG. 23, the shell of the fitting connector 2335 or the shell of the fifth connector 114 used as the side impact protection block 5 has, for example, a larger thickness T and a larger side impact contact area (the area of the side impact contact surface that bears the side impact) S to achieve the side impact protection effect. In some embodiments, the side impact contact area S is preferably 40 cm2~80 cm2. In some embodiments, the height (the direction of the height is consistent with the direction of the thickness T) of the shell of the fitting connector 2335 or the shell of the fifth connector 114 used as the side impact protection block 5 protruding relative to the accommodation body 100 can be between 10 mm~30 mm.It is to be noted that, in some embodiments, when the fitting connector 2335 and the fifth connector 114 are connected together, under the action of the connecting band 236 or the connecting band 237, the fitting connector 2335 and the fifth connector 114 can rotate relative to each other when subjected to a lateral impact. This relative rotation can disperse the instantaneous force direction, so that the fitting connector 2335 and the fifth connector 114 are not easy to separate. Thus, when the impact occurs, the ceiling assembly 200 can still stably cover the containing body 100 without opening the top opening 10 of the containing body 100, protecting the pet in the containing space 113 from falling out of the containing body 100. Referring to FIG. 23, in some embodiments, the seat cloth 150 covering the outer surface of the box body 110 can be provided with an open storage bag 151 and / or a storage bag 153 with a closure member 1531 to provide the user with a space for storing articles. The closure member 1531 may, for example, but is not limited to, a zipper. The storage bag 153 may, for example, be a hidden storage bag hidden in the seat cloth 150. Referring to the perspective view of the box body 110 and the support device 120 of the containing body 100, and the ceiling frame 211 of the ceiling assembly 200 shown in FIG. 24, as well as the cross-sectional view shown in FIG. 25. In some embodiments, the side impact protection structure 500 can also include a buffer block 55 disposed on the inner side 112b of the peripheral wall 112 of the box body 110, more specifically, on the inner side 112b of the peripheral wall 112 of the front side and / or the rear side (i.e., either side in the longitudinal direction) of the box body 110. The buffer block 55 is used to buffer the lateral impact between the pet in the containing space 113 and the box body 110. In some embodiments, the box body 110 is made of, for example, foamed material, and the buffer block 55 is, for example, integrally formed with the box body 110. In some embodiments, the first side of the buffer block 55 can be attached to the box body 110 by adhesion or other means. The material of the buffer block 55 can be selected from materials with elastic damping effect, and the buffer block 55 can have a large area and appropriate thickness. In some embodiments, when the buffer block 55 is a single-layer structure, it may, for example, be made of inert memory foam or other suitable materials. When the buffer block 55 is a multi-layer structure, it may, for example, be a combination of EPP (expanded polypropylene) material layer, EPS (expanded polystyrene) material layer, and EPE (pearl wool) material layer, a combination of inert memory foam material layer and PE (polyethylene) material layer, or a combination of other suitable material layers. In some embodiments, the second side of the buffer block 55 opposite the first side can be provided with a hard sheet (see FIG. 41 and FIG.44, the hard sheet 56 can be a plastic sheet made of PE (polyethylene), PC (polycarbonate), PP (polypropylene), PVC (polyvinyl chloride), PET (polyethylene terephthalate), PMMA (polymethyl methacrylate), or the like. Alternatively, the hard sheet can be a metal sheet with high hardness, easy deformation, and good toughness. When the pet collides with the bumper 55 of the accommodating body 100, the hard sheet on the inner side of the bumper 55 can quickly disperse the impact force to avoid excessive concentration of the impact force. In some embodiments, the peripheral wall 112 of the box body 110 and the bumper 55 can be provided with a hole type structure to facilitate ventilation. The hard sheet on the inner side of the bumper 55 can be, for example, T-shaped or H-shaped, and the hard sheet in this configuration can avoid the hole type structure on the bumper 55. Figure 26 shows a perspective view of the carrier 1000 according to the sixth embodiment of the first aspect of the present disclosure, which is a modification of the carrier 1000 provided in the fifth embodiment described above. Without conflict, the structure of the accommodating body 100 and the ceiling assembly 200 of the present embodiment can refer to the description in the fifth embodiment described above, and the differences between the present embodiment and the fifth embodiment described above will be mainly described below. Referring to Figure 26, in the present embodiment, the front side and / or the rear side of the seat cloth 150 wrapped around the outer surface of the box body 110 is provided with an open storage bag 152. The storage bag 152 is, for example, pasted or sewn on the seat cloth 150, to place smaller objects such as a harness. In addition, the storage bag 152 can at least partially accommodate the corresponding side impact protection block 5, to avoid affecting the appearance or being damaged due to collision. In some embodiments, the opening edge 1521 of the storage bag 152 can be provided as an elastic extension tight structure, to facilitate better placement of objects. In some embodiments, the fifth connecting piece 114 is located in the corresponding storage bag 152, and the side impact protection block 5 is arranged on the matching connecting piece 2335. When the matching connecting piece 2335 is connected with the fifth connecting piece 114, the matching connecting piece 2335 and the side impact protection block 5 in the use state are at least partially accommodated in the storage bag 152. Figure 27 shows a side view of the carrier 1000 according to the seventh embodiment of the first aspect of the present disclosure, which is a modification of the carrier 1000 provided in the fifth embodiment described above, and the main difference between the present embodiment and the fifth embodiment is the implementation of the side impact protection structure 500. Without conflict, the structure of the accommodating body 100 and the ceiling assembly 200 of the present embodiment can refer to the description in the fifth embodiment described above, and the differences between the present embodiment and the fifth embodiment described above will be mainly described below.The structure of 200 can refer to the description in the fifth embodiment above, and the differences between the present embodiment and the fifth embodiment above will be mainly described below. Referring to FIG. 27, in the present embodiment, a receiving bag 155 is arranged on the front side and / or the rear side of the seat cloth 150 wrapped outside the box body 110, and the side impact protection structure 500 comprises a side impact protection block 5, and the side impact protection block 5 is wrapped in the receiving bag 155. The side impact protection block 5 is located below the first support 121 of the support device 120. The side impact protection block 5 can be a plastic block, and the material of the plastic block is selected from, for example, PC (polycarbonate) plastic, PP (polypropylene) plastic, etc. Alternatively, the side impact protection block 5 can be made of foamed material, which is selected from, for example, EPS, EPP, EPE, inert memory cotton (also known as inert foam), sponge, etc. Alternatively, the side impact protection block 5 can be made of soft gel (for example, selected from silicone or rubber). In some embodiments, the side impact protection block 5 can be, for example, an elastic piece (such as a spring, a spring piece, etc.). When the carrier 1000 is subjected to a side impact, the side impact is transmitted to the box body 110 and / or the support device 120 through the side impact protection block 5. In some embodiments, the receiving bag 155 can be sewn on the outer surface of the seat cloth 150 by a piece of cloth, and the side impact protection block 5 is clamped between the piece of cloth and the seat cloth 150. In some embodiments, the receiving bag 155 can be connected with the seat cloth 150 to form a bag opening, and the bag opening can be provided with a sealing piece (not shown in the figure), which is, for example, a zipper. The sealing piece can open or close the bag opening to fix the side impact protection block 5 in the receiving bag 155 or can be taken out of the receiving bag 155. In some embodiments, the receiving bag 155 is detachably connected with the seat cloth 150 by the sealing piece. For example, when the sealing piece is a zipper, the zipper can be arranged around the receiving bag 155 and allows the receiving bag 155 to be detached from the seat cloth 150, so as to facilitate cleaning of the receiving bag 155 and replacement of the side impact protection block 5. In some embodiments, the receiving bag 155 can adopt a cloth bag, and after the side impact protection block 5 is put into the cloth bag, the bag opening of the cloth bag is closed by sewing or by a sealable sealing piece, and then the cloth bag is sewn on the outer surface of the seat cloth 150. It should be noted that, based on the different materials of the side impact protection block 5, the size of the side impact contact surface S of the side impact protection block 5 and the height (which can also be referred to as the thickness of the side impact protection block 5) of the side impact protection block 5 relative to the seat cloth 150 can be different. For example, when the side impact protection block 5 adopts a plastic block, because the plastic block has high hardness and good impact resistance, the area S of the side impact contact surface of the side impact protection block 5 can be smaller, for example, can be less than 100 cm2.20cm2-60cm2; the height of the side impact protection block 5 protruding relative to the seat cloth 150 can be between 40mm-100mm, preferably 75mm. When the side impact protection block 5 is made of foamed material, the side impact protection block 5 has a lower hardness, and in this case the area S of the side impact contact surface of the side impact protection block 5 can be larger, for example, can be between 80cm 2 - 180cm 2 ; the height of the side impact protection block 5 protruding relative to the seat cloth 150 can be between 20mm-60mm, preferably 40mm. The first aspect eighth embodiment FIG. 28 shows a perspective view of the carrier 1000 provided according to the first aspect eighth embodiment of the present disclosure, and FIG. 29 shows a cross-sectional structure of FIG. 28. As shown, the present embodiment is a variant of the carrier 1000 provided by the above-mentioned seventh embodiment, and the main difference between the present embodiment and the seventh embodiment is the implementation of the side impact protection structure 500. Without going into details, the structure of the accommodation body 100 and the ceiling assembly 200 of the present embodiment can refer to the description in the above-mentioned second embodiment, and the following mainly describes the differences between the present embodiment and the above-mentioned second embodiment. Referring to FIG. 28 and FIG. 29, in the present embodiment, the side impact protection structure 500 can include a side impact protection block 5, which is arranged, for example, on the outer side 112a of the peripheral wall 112 of the box body 110, more specifically, on the outer side 112a of the peripheral wall 112 of the front side and / or rear side of the box body 110. When the box body 110 is made of foamed material, the side impact protection block 5 can be, for example, integrally formed with the box body 110. Of course, in some embodiments, the side impact protection block 5 can be attached to the box body 110 by, for example, bonding, secondary forming, clamping, etc. In some embodiments, a plurality of hole structures HOU can be arranged on the box body 110. In some embodiments, the side impact protection block 5 can be made of foamed material, and the shape of the side impact protection block 5 is, for example, rectangular but not limited to rectangular. The area of the side impact contact surface S of the side impact protection block 5 can be between 80cm 2 - 180cm 2Z, and the thickness D can be within 60 mm, preferably 40 mm. It will be understood that the material, shape, and size of the side impact protection block 5 are not limited to the above examples. For example, in some embodiments, the side impact protection block 5 may include a planar side impact contact surface S, on which multiple convex bumps may be evenly spaced. In some embodiments, the side impact contact surface S of the side impact protection block 5 may not be planar, but may be, for example, spherical or hemispherical. Figure 30 shows a variant embodiment of the cross-sectional structure shown in Figure 29. In this variant embodiment, the side impact protection structure 500 further includes a buffer block 55. The buffer block 55 is disposed on the inner side 112b of the peripheral wall 112 of the box body 110, more specifically, on the inner side 112b of the front and / or rear peripheral wall 112 of the box body 110. In some embodiments, the position of the buffer block 55 corresponds to the position of the side impact protection block 5. The material of the buffer block 55 can refer to the description of the buffer block 55 in the fifth embodiment. In some embodiments, the inner side of the buffer block 55 facing the accommodating space 113 can be provided with a hard sheet (see hard sheet 56 in FIG. 34 ). It is understood that the accommodating body 100 can also include a seat cloth 150. The seat cloth 150 covering the outer surface of the box 110 can cover the side impact protection block 5, and the seat cloth 150 covering the inner surface of the box 110 can cover the buffer block 55, thereby giving the accommodating body 100 a neat appearance. Ninth Embodiment of the First Aspect: FIG31 shows the structure of a vehicle 1000 provided according to the ninth embodiment of the first aspect of the present disclosure. This embodiment is a variation of the vehicle 1000 provided in the fifth embodiment described above. Unless otherwise specified, the structures of the housing body 100 and roof assembly 200 of this embodiment can be found in the description of the fifth embodiment described above. The following primarily describes the differences between this embodiment and the fifth embodiment. For example, this embodiment may also include a side impact protection structure provided on the roof, or may incorporate additional side impact protection structures based on the structure of the fifth embodiment. These details will be described below. With reference to Figures 31 and 32 , in this embodiment, the side impact protection structure 500 includes side impact protection blocks 5 connected to the front and / or rear of the roof 22. When the roof assembly 200 is deployed, the contacting surfaces of the side impact protection blocks 5 and the roof 22 match in shape. As noted above, in some embodiments, the roof 22 of the roof assembly 200 may include a shielding area 221 and an observation area 222.At least one side impact protection block 5 can be arranged at a region of the shielding area 221 away from the viewing area 222 (corresponding to the front of the canopy 22 in FIG. 31). Alternatively, at least one side impact protection block 5 can be arranged at a region of the viewing area 222 away from the shielding area 221 (corresponding to the rear of the canopy 22, for example). Referring to an exemplary structure of the side impact protection block 5 shown in FIG. 32, in some embodiments, each side impact protection block 5 can comprise an integrally formed sheet, which can be made of a foamed material (e.g. selected from EPS, EPP, EPE, inert memory foam, sponge or a combination thereof). The side impact protection block 5 can be fixed to the inner side of the canopy 22 by means of sewing. The thickness of the side impact protection block 5 can be between 20mm-60mm, preferably 40mm. When the canopy assembly 200 is folded, the sheet can be folded together with the canopy cloth 22. Referring to FIG. 32, when the side impact protection block 5 in the form of a sheet corresponds to at least two shielding panels 2211 or at least two viewing panels 2221, the side impact protection block 5 accordingly comprises at least two sheet portions 511 and a bending portion 512 formed between the adjacent two sheet portions 511. The size of each sheet portion 511 is close to the size of the corresponding shielding panel 2211 or viewing panel 2221, for example. The bending portion 512 corresponds to the U-shaped bracket 21, and the bending portion 512 can comprise a transversely extending gap, so that the side impact protection block 5 can better fit the arched shape of the canopy 22 and the protective cover 300. Of course, in some embodiments, the side impact protection block 5 in the form of a sheet can only comprise one sheet portion 511, which has a shape matching that of the corresponding shielding panel 2211 or viewing panel 2221.When the extended viewing area 224 is not needed, the extended viewing area 224 is covered by the cover sheet 2211 by closing the roof opening 201 with the closure member 223. In some embodiments, the closure member 223 includes, for example, a zipper strip 2231, a zipper strip 2232 and a zipper head 2233, the zipper strip 2231 and the zipper strip 2232 are connected by the zipper head 2233, thereby closing the roof opening 201. As can be seen in FIG. 33, the zipper strip 2232 is mounted on the edge 22111 of the cover sheet 2211 for covering the extended viewing area 224, the edge 22112 of the cover sheet 2211 adjacent to both ends of the zipper strip 2232 is separated from the skirt 25. In this way, when the closure member 223 completely opens the roof opening 201, the zipper strip 2231 and the zipper strip 2232 are separated from each other, the cover sheet 2211 for covering the extended viewing area 224 can be folded down, so that the extended viewing area 224 is exposed. It can be understood that the implementation of the closure member 223 is not limited to the zipper structure described above. In addition, in this embodiment, the first connecting member 41 for connecting with the second connecting member 32 of the protective cover 300 can be provided at a suitable position on the skirt 25. The first connecting member 41 can be, for example, a metal ring or a plastic ring, which can be connected to the skirt 25 by a webbing 411. Referring to FIGS. 33-35, in this embodiment, the fifth connecting member 114 is provided on opposite sides (front and rear sides) of the box body 110. The fifth connecting member 114 can be fixed on the seat cloth 150 or can be directly fixed on the box body 110 and exposed by the seat cloth 150. The mating connecting member 2335 is provided on the corresponding two sides (front and rear of the roof 22) of the roof 22 of the roof assembly 200. The mating connecting member 2335 is connected to the skirt 25 of the roof 22, for example, more specifically through a connecting band 236. The mating connecting member 2335 and the corresponding fifth connecting member 114 are detachably connected. As described in the fifth embodiment, when the mating connecting member 2335 and the fifth connecting member 114 are connected, the roof assembly 200 is kept in the unfolded state, and the roof 22 closes the top opening 10 of the containment body 100. In some embodiments, one of the fifth connecting member 114 and the mating connecting member 2335 can be a male connecting member, and the other can be a female connecting member, when the male connecting member and the female connecting member are connected, the roof assembly 200 is kept in the unfolded state. The male connecting member and the female connecting member can be, but are not limited to, a magnet buckle assembly that matches each other.Referring to FIG. 34, when the mating connector 2335 and the fifth connector 114 are connected together, the side impact protection block 5 shown in FIG. 14 that protrudes outward relative to the housing of the mating connector 2335 does not need to be configured on the mating connector 2335, and the size (for example, the thickness and the surface area) of the housing of the mating connector 2335 does not need to be additionally changed, and the mating connector 2335 located at the front side or the rear side of the accommodation body 100 can be used as the side impact protection block. In some embodiments, the mating connector 2335 protrudes outward by a distance Q1 (i.e., a first distance) relative to the ceiling frame 211, or the mating connector 2335 protrudes outward by a distance Q2 (i.e., a second distance) relative to the accommodation body 100 (more specifically, relative to the first support 121), or the mating connector 2335 protrudes outward by a distance Q3 (i.e., a third distance) relative to the cabinet 110, where Q1Q2Q3, so that the mating connector 2335 can play a better side impact protection role. Referring to FIGS. 36-38, the structure of the fifth connector 114 and the connection manner of the fifth connector 114 and the accommodation body 100 are exemplarily shown. Referring to FIG. 38, the housing of the fifth connector 114 includes a first buckling body 1141, two first connection holes 1140 located at opposite sides of the first buckling body 1141, and two first connection tongues 1143 extending outward from opposite sides of the first buckling body 1141. The first buckling body 1141 can be provided with a magnetic member. The middle part of the first buckling body 1141 has a protrusion 1142, for example, a circular protrusion. The two first connection tongues 1143 are adjacent to the two first connection holes 1140, respectively, and the housing of the first buckling body 1141 is integrally injection molded with the two first connection tongues 1143, for example. Referring to FIGS. 36 and 37, the fifth connector 114 can be connected with the accommodation body 100 through a connection band 238. More specifically, the two ends 2380 of the connection band 238 are folded back after passing through the two first connection holes 1140 from the side of the first buckling body 1141 away from the protrusion 1142, and the two first connection tongues 1143 are clamped in the connection band 238, and then the first connection tongues 1143, the connection band 238, and the seat cloth 150 are connected together through, for example, sewing or riveting. In this embodiment, the connection band 238, the first connection tongues 1143, and the seat cloth 150 are specifically connected together through sewing threads 2381 and 2382.The first connecting tongue 1143 can effectively prevent the fifth connecting member 114 from being flipped around the connecting strap 238, thereby avoiding the fifth connecting member 114 from facing the convex portion 1142 towards the seat cloth 150 after being flipped by 180°. In some embodiments, a hard protective sheet 1181 can be further arranged between the seat cloth 150 and the box body 110, and the protective sheet 1181 corresponds to the position of the fifth connecting member 114. The protective sheet 1181 can be, for example, a hard sheet, which can be, for example, the hard sheet described in the fifth embodiment. In this way, when the fifth connecting member 114 is subjected to a side impact, the protective sheet 1181 can quickly disperse the impact force, thereby avoiding the impact force from being too concentrated and possibly damaging the box body 110 made of foamed material. Referring to FIG. 39, in some embodiments, the stitched connecting strap 238, the first connecting tongue 1143, the sewing line 2381 and the sewing line 2382 of the seat cloth 150 can also be connected with the protective sheet 1181, thereby ensuring the relative position of the protective sheet 1181 and the fifth connecting member 114. In some embodiments, the protective sheet 1181 can be fixed to a pad 1182, for example, which can include a single-layer or multi-layer structure made of fabric. In this embodiment, the protective sheet 1181 (shown by a dashed line in FIG. 39) is connected with the pad 1182, for example, through the sewing line 1081, which can be, for example, arranged around the periphery of the protective sheet 1181. In some embodiments, the protective sheet 1181 can be connected with the pad 1182 through, for example, gluing or welding. In some embodiments, the pad 1182 is close to the box body 110, the protective sheet 1181 is close to the seat cloth 150, and the area of the pad 1182 is not less than the area of the protective sheet 1181, thereby avoiding the protective sheet 1181 from directly contacting the box body 110 made of foamed material, which can cause wear of the box body 110. Of course, in some embodiments, the area of the pad 1182 can also be less than the area of the protective sheet 1181. Referring to FIG. 39, in some embodiments, the seat cloth 150 can include, for example, the sewing line 1501, the sewing line 1502, the sewing line 1503 and the sewing line 1504 arranged from top to bottom, and each sewing line is used to sew together two adjacent parts (including but not limited to cloth) of the seat cloth 150. The sewing line 1502 is connected with the protective sheet 1181 and the pad 1182 at the same time. The cloth located between the sewing line 1503 and the sewing line 1504 corresponds to, for example, the transition portion between the wall 112 and the bottom 111 of the box body 110, and the bottom edge of the protective sheet 1181 is located above the sewing line 1503.At this time, the sewing thread 1081 at the bottom of the protective sheet 1181 can be disconnected without forming a closed ring, so that the gasket 1182 can be easily bent and connected with the seat cloth 150 through the sewing thread 1503, and the sewing thread 1503 does not need to be connected with the protective sheet 1181. Of course, in other embodiments, the seat cloth 150 can also have other implementations, and the connection modes of the gasket 1182 with the protective sheet 1181 and the gasket 1182 with the seat cloth 150 are not limited to the above examples. Referring to FIG. 40, an example of the structure of the matching connector 2335 is shown. The matching connector 2335 includes, for example, a second fastening body 23351, a second connecting hole 23350 located on one side of the second fastening body 23351, and a second connecting tongue 23353 extending outward from the side where the second connecting hole 23350 is located. The second fastening body 23351 can be provided with a magnetic element. The middle part of the second fastening body 23351 has a recess 23352, which is used to magnetically fasten with the protrusion 1142 of the first fastening body 1141. Referring to FIGS. 34 and 35, the matching connector 2335 can be connected with the skirt 25 through the connecting band 236. More specifically, the connecting band 236 passes through the second connecting hole 23350 and has portions located on both sides of the second connecting tongue 23353. The portions of the connecting band 236 located on both sides of the second connecting tongue 23353 can be connected with the second connecting tongue 23353 by sewing or fastening. In this embodiment, the connecting band 236 and the second connecting tongue 23353 are connected by the sewing thread 2361. Referring to FIGS. 33 and 35, when the matching connector 2335 and the fifth connector 114 are connected and subjected to lateral impact, the middle part of the roof 22 is stably connected with the roof locking portion 124 of the accommodating body 100 through the roof locking device 24 (as described above in the second embodiment), and the roof 22 is more easily separated from the front or rear of the accommodating body 100. In this embodiment, because the front or rear of the roof 22 is connected with the matching connector 2335 through the connecting band 236, the matching connector 235 can rotate relative to the fifth connector 114 in the N1 or N2 direction (the connecting band 236 can limit the rotation angle of the matching connector 235 in the N1 or N2 direction to be less than 90 degrees), and this relative rotation can disperse the direction of the instantaneous force, so that the matching connector 2335 and the fifth connector 114 are not easily separated, and the front or rear of the roof 22 is prevented from being separated from the accommodating body 100.Figure 41 shows a partial cross-sectional view of the carrier 1000 according to the eleventh embodiment of the first aspect of the present disclosure. The structure of the carrier 1000 shown in this embodiment can refer to the description of the carrier 1000 shown in Figure 34 above, provided that there is no conflict. It should be noted that the structure of the carrier 1000 shown in Figure 34 is generally used in small and medium-sized carriers. For small and medium-sized carriers, the size of the accommodation body 100, the roof assembly 200, and the protective cover 300 is small, and the weight is light. The handle 23 can be arranged on the roof 22, and the user can lift the carrier 1000 by using the handle 23. The structure of the carrier 1000 shown in Figure 41 is generally used in medium and large-sized carriers 1000. For medium and large-sized carriers, the size of the accommodation body 100, the roof assembly 200, and the protective cover 300 is large, and the weight is heavy. The handle 29 can be installed on the accommodation body 100, and the user can lift the carrier 1000c by using the handle 29. Referring to Figure 41, the outer side 112a of the peripheral wall 112 of the box body 110 can be provided with a side impact protection block 5. The implementation of the side impact protection block 5 can refer to the description of the side impact protection block 5 in the eighth embodiment of the present aspect. In this embodiment, the position of the side impact protection block 5 corresponds to the fifth connecting piece 114 and the protective sheet 1181. The side impact protection block 5 can be made of energy-absorbing foam and located below the first support 121. The side impact protection block 5 can further enhance the side impact protection performance of the accommodation body 100. Referring to Figures 41 and 44, in some medium and large-sized carriers 1000, a slot-shaped structure 1112 can be arranged on the inner side 112b of the peripheral wall 112 of the box body 110 of the accommodation body 100. A buffer block 55 can be installed in the slot-shaped structure 1112, and the buffer block 55 protrudes relative to the inner side 112b. The buffer block 55 is used to buffer the lateral impact between the pet in the accommodation space 113 and the box body 110. In some embodiments, a hard sheet 56 can be arranged on the inner side surface 55b of the buffer block 55 facing away from the peripheral wall 112. The hard sheet 56 can be a plastic sheet made of PE (polyethylene), PC (polycarbonate), PP (polypropylene), PVC (polyvinyl chloride), PET (polyethylene terephthalate), PMMA (polymethyl methacrylate), etc. In some embodiments, the buffer block 55 and the hard sheet 56 can both be T-shaped.In addition, for a medium or large-sized carrier 1000, a hard handle 29 can be installed on the support device 120 instead of being provided on the roof 22, so that the accommodation body 100o can be conveniently moved. It should be noted that when the roof 22 is not connected to the accommodation body 100, the fifth connecting piece 114 and the protrusion 1142 thereof can also be used as a side impact protection block. When the fifth connecting piece 114 is subjected to a lateral impact, the protrusion 1142 can transmit the impact force to the protective sheet 1181, the side impact protection block 5, and the box body 110. The protective sheet 1181 can quickly disperse the impact force, the side impact protection block 5 can buffer the impact force and absorb energy, and the box body 110 made of foamed material can also absorb the impact force. When the roof 22 is connected to the accommodation body 100, the concave-convex matching of the recess 23352 of the connecting piece 2335 and the protrusion 1142 of the fifth connecting piece 114 increases the surface area for transmitting the impact force (for an integrally formed side impact protection block, there is no such transition area for transmission), which can improve the transmission and dispersion effect of the impact force. In addition, the inside of the protrusion 1142 can include a metal structure to stabilize the structure of the protrusion 1142, thereby better conducting the impact force. In addition, the support device 120 of the accommodation body 100 can also have a side impact protection function. For example, when the accommodation body 100 is subjected to a large lateral impact and the box body 110 is deformed, the deformed box body 110 transmits the impact force to the support device 120, and the impact force can be transmitted to the cartridge through the third support 123 of the support device 120. FIGS. 45-47 show perspective views of a protective cover 300 according to a twelfth embodiment of the first aspect of the present disclosure. FIG. 48 shows the internal structure of the cover body 31 of the protective cover 300. FIGS. 49 and 50 show perspective views of two impact protection bodies 311. The protective cover 300 provided by the present embodiment has the same function as the protective cover 300 in the first embodiment, and is used to shield at least a part of the roof assembly 200 of the carrier 1000 to improve the impact resistance of the shielded area of the roof assembly 200. In addition, similar to the first embodiment, the “protective cover” of the present embodiment can also be an example or part of the “protection device”. Referring to FIGS. 45-47, the protective cover 300 can include a cover body 31 and at least one second connecting piece 32. The cover body 31 extends in the transverse direction (i.e., the left-right direction of the accommodation body 100) to cover the front or rear of the roof assembly 200 laterally.The cover body 31 has a shape with narrow ends and a wide middle portion in this embodiment. The cover body 31 is provided with two hooks at its two ends, which are used as two second connecting members 32. The two second connecting members 32 are used to detachably connect with two first connecting members 41 on the accommodating body 100 or the ceiling assembly 200. As described above in the first embodiment, the second connecting members 32 are not limited to hooks. Referring to FIGS. 45 and 47, the cover body 31 includes an outer fabric layer 301 and an inner fabric layer 302. When the protective cover 300 is in use, the cover body 31 is arched, the outer fabric layer 301 faces away from the ceiling assembly 200, and the inner fabric layer 302 faces the ceiling assembly 200. The outer fabric layer 301 and the inner fabric layer 302 can each be made of fabric. In some embodiments, the outer fabric layer 301 and the inner fabric layer 302 can each be made of a plurality of fabric pieces. In this embodiment, the outer fabric layer 301 can be made of a fabric piece 3a, a fabric piece 3b, and a fabric piece 3c. The fabric piece 3c corresponds to the skirt 35 of the cover body 31, for example, and the second connecting members 32 are connected with the fabric piece 3c, for example. The two ends of the fabric piece 3a are connected with the two ends of the fabric piece 3c, and the fabric piece 3b is connected between the fabric piece 3a and the fabric piece 3c. The inner fabric layer 302 can be made of a fabric piece 3d and a fabric piece 3e. In some embodiments, the fabric piece 3d corresponds to the fabric piece 3a, for example, and the fabric piece 3e corresponds to the fabric pieces 3b and 3c, for example. Of course, in other embodiments, the outer fabric layer 301 and the inner fabric layer 302 are not limited to the above-described embodiments. Referring to FIG. 48, the outer fabric layer 301 and the inner fabric layer 302 define one or more accommodation spaces 313, in which one or more impact bodies 311 (the outline of each impact body 311 is shown in dashed lines in FIG. 48) are installed. The outer outline of each impact body 311 corresponds to the size of the corresponding accommodation space 313, for example. When the protective cover 300 is in use, each impact body 311 of the protective cover 300 can provide better impact protection for the ceiling assembly 200. Referring to FIG. 48 and referring to FIG. 34, in some embodiments, when the protective cover 300 is matched with a small or medium-sized vehicle 1000, the outer fabric layer 301 and the inner fabric layer 302 define two accommodation spaces 313, for example. The two accommodation spaces 313 are a first accommodation space 3131 and a second accommodation space 3132, respectively. The first accommodation space 3131 and the second accommodation space 3132 each extend substantially in the transverse direction, and the first accommodation space 3131 and the second accommodation space 3132 are arranged in sequence in the longitudinal direction.The first accommodating space 3131 corresponds to the area covered by the cloth piece 3d, and the second accommodating space 3132 corresponds to the area covered by the cloth piece 3e. The two accommodating spaces 313 are provided with two impact protection bodies 311, which are the first impact protection body 3111 and the second impact protection body 3112. The first impact protection body 3111 is located in the first accommodating space 3131, and the second impact protection body 3112 is located in the second accommodating space 3132. The two accommodating spaces 313 are separated by structures such as sewing threads 317 or adhesive lines that connect the outer fabric layer 301 and the inner fabric layer 302. In this way, each impact protection body 311 is located in the corresponding accommodating space 313 and is not easily displaced into other accommodating spaces 313. In some embodiments, the sewing threads 317 extend along the connection between the cloth piece 3d and the cloth piece 3e. Referring to FIGS. 48 and 49, in some embodiments, the first impact protection body 3111 can adopt a single-layer structure, for example, made of a single-layer sheet. The first impact protection body 3111 extends in the transverse direction to support the outer fabric layer 301 and the inner fabric layer 302 while providing impact protection. The single-layer sheet can be a soft sheet made of a cushioning material. In some embodiments, the soft sheet can be made of a foamed material, such as EPP, EPS, EPO (foamed polystyrene polyethylene mixture), EPE material, etc. In some embodiments, the soft sheet can be made of foam (e.g., inert memory foam). Of course, in other embodiments, the first impact protection body 3111 as a whole can have a multi-layer structure, or the transverse middle region of the first impact protection body 3111 (corresponding to the transverse middle region of the cover 31) can have a multi-layer structure. The multi-layer structure can be formed by stacking multiple layers of sheet, which can include at least one soft sheet and at least one hard sheet, or all of the multiple layers of sheet can be soft or hard. Adjacent sheets can be fixed together by adhesive, or the multiple layers of sheet can be bound together by a strip. Of course, in some embodiments, the first impact protection body 3111 can also be made of a single-layer hard sheet, which can be a plastic sheet. Referring to FIGS. 48 and 50, at least part of the second impact protection body 3112 can have a multi-layer structure to at least partially enhance the impact protection effect of the second impact protection body 3112. Of course, in some embodiments, the second impact protection body 3112 can also adopt a single-layer soft sheet or a single-layer hard sheet. Alternatively, in some embodiments, the second impact protection body 3112 as a whole can have a multi-layer structure. The specific implementation of the multi-layer structure can be referred to the description of the multi-layer structure of the first impact protection body 3111 above.In this embodiment, considering that the lateral middle region of the second impact body 3112 is closer to the pet's head and more likely to be impacted when the pet's head is below the protective cover 300, an intermediate impact portion 3110 is arranged in the lateral middle region of the second impact body 3112, and the intermediate impact portion 3110 has a multi-layer structure, so as to locally enhance the impact protection effect of the lateral middle region of the second impact body 3112 and effectively reduce the cost. FIG. 50 shows an exemplary embodiment of the second impact body 3112. The second impact body 3112 includes a laterally extending sheet 31121, a sheet 31122 arranged on the lateral middle region of the sheet 31121, and a sheet 31123 arranged on the sheet 31122. The sheet 31121 and the sheet 31122 can be soft sheets, and the sheet 31123 can be a hard sheet. The multi-layer structure of the intermediate impact portion 3110 includes the sheet 31121, the sheet 31122, and the sheet 31123 stacked together, and adjacent sheets are fixed together, for example, by adhesive. The sheet 31121 is close to the outer fabric layer 301, and the sheet 31123 is close to the inner fabric layer 302. The outer contour of the sheet 31121 corresponds to the size of the second receiving space 3132, and the laterally extending sheet 31121 supports the outer fabric layer 301 and the inner fabric layer 302 while making the outer fabric layer 301 have a relatively flat appearance. The periphery of the sheet 31122 does not protrude relative to the sheet 31121, for example. The periphery of the sheet 31123 does not protrude relative to the sheet 31122, for example, so as to avoid the edges of the hard sheet 31123 being ground through the inner fabric layer 302 when pressed. Of course, in some embodiments, the periphery of the sheet 31123 can protrude from the sheet 31122, and the size of the sheet 31123 can be greater than that of the sheet 31122. In some embodiments, the corners of the sheet 31123 are arc-shaped. In some embodiments, the intermediate impact portion 3110 has a portion extending to the skirt 35, which can function as a side impact protection. In some embodiments, the sheet 31121 can be made of foamed material, for example, EPP, EPS, EPO (foamed polystyrene polyethylene mixture), EPE, etc. The sheet 31122 can be made of foam (for example, inert memory foam). The sheet 31123 is, for example, a plastic sheet. In some embodiments, the hard plastic sheet can be made of PE (polyethylene), PC (polycarbonate), PP (polypropylene), PVC (polyvinyl chloride), PET (polyethylene terephthalate), PMMA (polymethyl methacrylate), etc.In the case of the hard sheet material 31123, when the pet collides with the sheet material 31123, the sheet material 31123 can disperse the impact force to avoid excessive concentration of the impact force. FIGS. 51 and 52 show a variant embodiment of the second impact body 3112 shown in FIG. 50, and FIG. 53 shows a partial sectional view of the vehicle 1000 configured with the protective cover 300 including the second impact body 3112. Referring to FIGS. 51 and 52, in the variant embodiment of the second impact body 3112, the sheet material 31122 is provided in the lateral middle region of the sheet material 31121, the sheet material 31123 is provided in the sheet material 31122, the sheet material 31124 is provided in the sheet material 31123, and the sheet material 31125 is provided in the sheet material 31124. In some embodiments, the sheet materials adjacent to each other of the second impact body 3112 are fixed together, for example, by means of adhesive. The sheet material 31121 is, for example, a soft sheet material (including but not limited to an EPP plate). The lateral dimension of the sheet material 31122 can be smaller than the lateral dimension of the sheet material 31121, and the longitudinal dimension of the sheet material 31122 is not greater than the longitudinal dimension of the sheet material 31121. The material of the sheet material 31122 is, for example, the same as the material of the sheet material 31124, both of which are soft sheet materials (including but not limited to a foam plate) with relatively thick thickness. The material of the sheet material 31123 is, for example, the same as the material of the sheet material 31125, both of which are hard sheet materials (including but not limited to a PE plate) with relatively thin thickness. The size of the sheet material 31123 can be smaller than the size of the sheet material 31122. The lateral dimension of the sheet material 31124 can be greater than the lateral dimension of the sheet material 31123 and not greater than the lateral dimension of the sheet material 31122. The size of the sheet material 31125 can be smaller than the size of the sheet material 31124. Referring to FIGS. 51 to 53 in combination, the second impact body 3112 is, for example, in a stepped shape, and the sheet material 31124 is substantially located above the box body 110 in the longitudinal direction corresponding to the upper position of the sheet material 31121. Of course, the embodiment of the second impact body 3112 is not limited to the above examples. Referring to FIGS. 54 and 55, in some alternative embodiments, at least one of the upper end and the lower end of each sheet material of the second impact body 3112 can have a flush shape. In FIG. 54, the upper ends of each sheet material of the second impact body 3112 are flush. In FIG. 55, both the upper end and the lower end of each sheet material of the second impact body 3112 have a flush shape. In some embodiments, both the sheet material 31123 and the sheet material 31125 can have a rounded corner design, which can avoid the edge of the hard sheet material 31123 being pressed to wear through the inner fabric layer 302.The periphery of the sheet 31123 does not exceed the periphery of the sheet 31122, for example, and the periphery of the sheet 31125 does not exceed the periphery of the sheet 31124, for example. Of course, in some alternative embodiments, at least part of the periphery of the sheet 31123 can exceed the periphery of the sheet 31122, and at least part of the periphery of the sheet 31125 can exceed the periphery of the sheet 31124. FIGS. 56-58 show perspective views of a protective cover 300 provided by a thirteenth embodiment of the first aspect of the present disclosure. FIG. 59 schematically shows the internal structure of the protective cover shown in FIG. 58. FIGS. 60-62 show perspective views of three bumpers 311. The protective cover 300 provided by the present embodiment is a variant of the protective cover 300 provided by the twelfth embodiment described above. The differences between the protective cover 300 of the present embodiment and the protective cover 300 of the twelfth embodiment will be mainly described below. In addition, the “protective cover” of the present embodiment can also serve as an example or part of the “protective device”. Referring to FIGS. 56-58, the cover body 31 of the protective cover 300 includes an outer fabric layer 301 and an inner fabric layer 302. The outer fabric layer can be spliced from the cloth sheet 3f, the cloth sheet 3g, the cloth sheet 3h, and the cloth sheet 3i. The cloth sheet 3i corresponds to the skirt 35 of the cover body 31, for example, and the second connecting member 32 is connected with the cloth sheet 3i, for example. The two ends of the cloth sheet 3f are connected with the two ends of the cloth sheet 3i. The cloth sheet 3g and the cloth sheet 3h are arranged in sequence along the longitudinal direction and are connected between the cloth sheet 3f and the cloth sheet 3i. The inner fabric layer 302 can be spliced from the cloth sheet 3j, the cloth sheet 3k, and the cloth sheet 3m. The two ends of the cloth sheet 3j are connected with the two ends of the cloth sheet 3m, and the cloth sheet 3k is connected between the cloth sheet 3j and the cloth sheet 3m. In some embodiments, the cloth sheet 3j corresponds to the cloth sheet 3f, for example, the cloth sheet 3k corresponds to the cloth sheet 3g and the cloth sheet 3h, and the cloth sheet 3m corresponds to the cloth sheet 3i, for example. Of course, in other embodiments, the implementation of the outer fabric layer 301 and the inner fabric layer 302 is not limited to the above. Referring to FIG. 59 and in combination with FIGS. 41-43, in some embodiments, when the protective cover 300 is matched with a large-sized medium-sized vehicle 100, the outer fabric layer 301 and the inner fabric layer 302 define three accommodation spaces 313, for example. The three accommodation spaces 313 are a third accommodation space 3133, a fourth accommodation space 3134, and a fifth accommodation space 3135, respectively. The three accommodation spaces 313 extend along the transverse direction, and the three accommodation spaces 313 are arranged in sequence along the longitudinal direction.The third accommodating space 3133 corresponds to the area covered by the cloth 3j, the fourth accommodating space 3134 corresponds to the area covered by the cloth 3k, and the fifth accommodating space 3135 corresponds to the area covered by the cloth 3m. The three accommodating spaces 313 are provided with three anti-collision bodies 311 (the outline of each anti-collision body 311 is shown by a dashed line in FIG. 59), which are the third anti-collision body 3113, the fourth anti-collision body 3114, and the fifth anti-collision body 3115. The third anti-collision body 3113 is located in the third accommodating space 3133, the fourth anti-collision body 3114 is located in the fourth accommodating space 3134, and the fifth anti-collision body 3115 is located in the fifth accommodating space 3135. The outer contour of each anti-collision body 311 corresponds to the size of the corresponding accommodating space 313. Adjacent accommodating spaces 313 are spaced apart by structures such as sewing threads 318 and 319 that connect the outer fabric layer 301 and the inner fabric layer 302, or adhesive lines. In some embodiments, the sewing thread 318 extends along the junction of the cloth 3j and the cloth 3k, and the sewing thread 319 extends along the junction of the cloth 3m and the cloths 3j and 3k. Referring to FIGS. 59 and 60, and in combination with FIG. 41, the third anti-collision body 3113 can adopt a single-layer structure, which can achieve good anti-collision protection. The single-layer structure of the third anti-collision body 3113 can be a single-layer soft sheet or a single-layer hard sheet. The specific embodiments of the single-layer soft sheet or the single-layer hard sheet can be referred to the description of the first anti-collision body 3111 in the twelfth embodiment. In this embodiment, the third anti-collision body 3113 adopts a single-layer soft sheet that extends transversely. Of course, in some embodiments, the transverse middle region of the third anti-collision body 3113 can have a multi-layer structure to locally enhance the impact resistance of the transverse middle region of the third anti-collision body 3113. Alternatively, in some embodiments, the third anti-collision body 3113 can also have a multi-layer structure as a whole. The specific embodiments of the multi-layer structure can be referred to the description of the multi-layer structure in the twelfth embodiment. Referring to FIGS. 59 and 61, and in combination with FIGS. 41 and 42, in some embodiments, the fourth anti-collision body 3114 has a multi-layer structure as a whole or in the transverse middle region of the fourth anti-collision body 3114 to at least partially enhance the impact resistance of the fourth anti-collision body 3114. The specific embodiments of the multi-layer structure can be referred to the description of the multi-layer structure in the twelfth embodiment. In this embodiment, the fourth anti-collision body 3114 can include a sheet 31141, a sheet 31142, and a sheet 31143. The sheet 31141 is close to the outer fabric layer 301, and the sheet 31143 is close to the inner fabric layer 302.The sheet material 31141 can be a soft sheet material, and the material thereof can be, for example but not limited to, EPP. The sheet material 31141 extends laterally in the fourth accommodating space 3134, and the outer contour size thereof corresponds to, for example, the size of the corresponding fourth accommodating space 3134, so as to support the outer fabric layer 301 and the inner fabric layer 302, and make the outer fabric layer 301 have a flat appearance. The sheet material 31142 can also be a soft sheet material, and the material thereof can be, for example but not limited to, inert memory foam. The area of the sheet material 31142 can be smaller than that of the sheet material 31141, and the sheet material 31142 is fixed in the lateral middle position of the sheet material 31141 by, for example, adhesive. The sheet material 31143 can be a hard sheet material, and when the pet collides with the sheet material 31143, the hard sheet material 31143 can disperse the impact force and avoid excessive concentration of the impact force. In some embodiments, the outer contour size of the sheet material 31143 corresponds to, for example, the size of the fourth accommodating space 3134, and the sheet material 31143 has a shape with narrow ends and a wide middle. According to actual needs, a plurality of sheet materials of the fourth anti-collision body 3114 can be stacked together without being fixed to each other by, for example, adhesive, or at least part of the adjacent sheet materials of the fourth anti-collision body 3114 can be fixed together by, for example, adhesive. For example, in some embodiments, when the protective cover 300 is matched with a smaller size of the accommodating body 100 and the ceiling assembly 200, the size of the protective cover 300 is also smaller, and all or at least part of the adjacent sheet materials of the fourth anti-collision body 3114 can be fixed together by, for example, adhesive. When the smaller size of the protective cover 300 is pressed or bent, the plurality of sheet materials of the fourth anti-collision body 3114 fixed by, for example, adhesive are not easy to be delaminated. When the protective cover 300 is matched with a larger size of the accommodating body 100 and the ceiling assembly 200, the size of the protective cover 300 is also larger, and part of the sheet materials (for example but not limited to the hard sheet material) of the fourth anti-collision body 3114 can be only stacked together without being fixed together by, for example, adhesive, so as to avoid that when the protective cover 300 is pressed or bent, the hard sheet material is delaminated from the adjacent sheet material due to deformation and arching. The fourth anti-collision body 3114 is provided with a plurality of sheet materials in a connection mode according to actual needs, so that the fourth anti-collision body 3114 can better adhere to and support the outer fabric layer and the inner fabric layer of the protective cover 300, and wrinkles are avoided. In some embodiments, the two ends of the sheet material 31143 are respectively provided with notches 31140 extending toward the middle of the sheet material 31143, and the notches 31140 leave a deformation allowance for the sheet material 31143, so as to avoid wrinkles and make the protective cover 300 not flat. In some embodiments, the corners of the sheet material 31143 are arc-shaped, so as to avoid piercing the inner fabric layer 302.In some embodiments, the periphery of the sheet 31143 does not protrude relative to the sheet 31141, for example, so as to avoid the edge of the hard sheet 31143 being ground by the inner fabric layer 302 when pressed. Referring to FIGS. 61 and 63, in some embodiments, the middle of the sheet 31142 can be provided with a transversely extending gap 311420 that can be deformed according to the shape of the sheet 31143, thereby facilitating better adhesion of the soft sheet 31142 and the hard sheet 31143, and better adhesion of the sheet 31142 and the sheet 31141, so that the fourth impact body 3114 can better conform to the arched shape of the protective cover 300 and the ceiling 22. Referring to FIGS. 59, 61 and 63, in some embodiments, when the same impact body 311 includes multiple sheets, and there are sheets that are not fixed together among the multiple sheets, at least one spacing layer 315 can be provided in the accommodation space 313 that accommodates the multiple sheets. The spacing layer 315 is an intermediate fabric layer provided between the inner fabric layer 302 and the outer fabric layer 301, which can be a lining fabric. The spacing layer 315 can divide the accommodation space 313 into at least two layered spaces, and the sheets that are not fixed together are respectively installed in the corresponding layered spaces. Each spacing layer 315 helps to position the sheets that are not fixed together. In the present embodiment, one spacing layer 315 can be provided in the fourth accommodation space 3114, which divides the fourth accommodation space 3134 into a layered space 31341 and a layered space 31342. The sheets 31141 and 31142 that are fixed together are accommodated in the layered space 31341, and the sheet 31143 is accommodated in the layered space 31342. Of course, in some embodiments, the accommodation space 313 can not be provided with a spacing layer 315, and the impact body 311 corresponding to the accommodation space 313 without the spacing layer 315 can include multiple sheets that can not be bonded to each other, or sequentially bonded, or partially bonded and partially not bonded, and the impact body 311 can be directly accommodated in the accommodation space 313 without the spacing layer 315. Referring to FIGS. 59 and 62, and referring to FIGS. 41 and 43, when the protective cover 300 is in a use state, the skirt 35 is wrapped outside the top opening 10 of the accommodation body 100. The fifth impact body 3115 corresponds to the skirt 35. In some embodiments, the fifth impact body 3115 can adopt a single-layer structure, such as a single-layer soft sheet or a single-layer hard sheet. The specific embodiments of the single-layer soft sheet or the single-layer hard sheet can be referred to the description of the first impact body 3111 in the twelfth embodiment.In some embodiments, the fifth anti-collision body 3115 can also be in a multi-layer structure as a whole or in a multi-layer structure in the lateral middle region. The specific implementation of the multi-layer structure can refer to the description of the multi-layer structure in the twelfth embodiment of the present aspect. By making the lateral middle region of the fifth anti-collision body 3115 in a multi-layer structure, the fifth anti-collision body 3115 can also play a role in side impact protection. Referring to FIG. 62, in the specific embodiment, the fifth anti-collision body 3115 can include a laterally extending sheet 31151, a sheet 31152 superimposed on the lateral middle region of the sheet 31151, and a sheet 31153 superimposed on the sheet 31152. The sheet 31151 is, for example, close to the outer fabric layer 301, and the outer contour size of the sheet 31151 corresponds to the size of the fifth accommodation space 3135, so as to play a role in supporting the outer fabric layer 301 and the inner fabric layer 302. The sheet 31153 is, for example, close to the inner fabric layer 302. The various sheets (the sheet 31151, the sheet 31152, and the sheet 31153) of the fifth anti-collision body 3115 can be fixed together by adhesive, or the various sheets can be bound together by a strip 31154. The sheet 31151 and the sheet 31153 can be soft sheets of the same material, and the material thereof can be, for example, but is not limited to, EPP. The sheet 31152 can also be a soft sheet, and the material of the sheet 31152 can be, for example, but is not limited to, inert memory cotton. In some embodiments, the materials of the sheet 31151, the sheet 31152, and the sheet 31153 can be the same or completely different. FIGS. 64 and 65 show a variant embodiment of the fourth anti-collision body 3114 shown in FIG. 61. Referring to FIGS. 64 and 65, the hard sheet 31143± can also be provided with a sheet 31145 and a sheet 31146, which are, for example, both soft sheets. The sheet 31145 is, for example, fixed on the sheet 31143 by adhesive, and the sheet 31146 is, for example, fixed on the sheet 31145 by adhesive. The material of the sheet 31145 is, for example, the same as the material of the sheet 31142 (including but not limited to foam), and the material of the sheet 31146 is, for example, the same as the material of the sheet 31141 (including but not limited to EPP plate). The notch 31140 divides the sheet 31143 into an upper part 311431 and a lower part 311432, and the lateral middle positions of the upper part 311431 and the lower part 311432 are connected, and the lower part 311432 is closer to the skirt 35 than the upper part 311431.Referring to FIGS. 64-66, the sheet 31145 and the sheet 31146 are located, for example, in the lateral middle position of the lower portion 311432, and can have a middle protrusion 31147 extending towards the upper portion 311431, which does not shield the gap 31140 so as not to affect the deformation of the sheet 31143 to adapt to the shape of the protective cover. FIGS. 66 and 67 show a variant embodiment of the fourth impact body 3114 shown in FIG. 64. As can be seen from FIGS. 66 and 67, in addition to the sheet 31145 and the sheet 31146 arranged in the lower portion 311432, a sheet 31148 and a sheet 31149 are also arranged in the lateral middle position of the upper portion 311431, for example, each of the sheet 31148 and the sheet 31149 is a soft sheet. The sheet 31148 is fixed, for example, by adhesive, on the upper portion 311431, and the sheet 31149 is fixed, for example, by adhesive, on the sheet 31148. The material of the sheet 31148 is the same as that of the sheet 31145, for example. The material of the sheet 31149 is the same as that of the sheet 31146, for example. FIG. 68 shows a partial sectional view of a vehicle 1000 provided according to a fourteenth embodiment of the first aspect of the present disclosure, which is installed with a protective cover 300 including the third impact body 3113 shown in FIG. 60, the fourth impact body 3114 shown in FIG. 64, and the fifth impact body 3115 shown in FIG. 62. The structure of the vehicle 1000 provided by the present embodiment can refer to the description of the vehicle 1000 shown in FIG. 41 above without conflict, and will not be described here again. It should be noted that the vehicle 1000 provided by any embodiment of the present disclosure (including but not limited to the fifth to tenth embodiments) can be configured with the protective cover 300 provided by the embodiments of the present disclosure, and the structure of the protective cover 300 and the cooperation relationship with the accommodating body 100 and the roof assembly 200 can refer to the description above, and will not be described here again. It can be understood that the protective cover 300 can be connected with the accommodating body 100 and / or the roof assembly, used to cover at least a part of the roof assembly (preferably, the front and / or rear of the roof assembly) when the roof assembly is in the unfolded state, and the protective cover 300 can be but is not limited to the specific embodiments exemplified in the above embodiments. The second aspect of the present disclosure provides a travel device, a vehicle and a protection device thereof, and each specific embodiment will be described below with reference to the accompanying drawings. First, in the context of the second aspect of the present disclosure, the travel device includes a vehicle for carrying an animal (such as a pet) confined therein.When viewed from the top of the carrier, the carrier can be generally rectangular, having a longitudinal axis / direction (indicated by arrow A in the figure) and a transverse axis / direction (indicated by arrow B in the figure). In the present disclosure, the carrier can be exemplarily arranged and installed on a back seat of a vehicle, such that the longitudinal axis of the carrier is parallel to the vehicle seat, and the transverse axis thereof is parallel to the travel direction of the vehicle (direction B6). The protection device provides the travel equipment with improved impact resistance to prevent the animals confined therein from being impacted or injured due to a side collision, which can be caused by being hit by an external object in an accident, or a sudden change in the speed or direction of the vehicle during travel. It should be noted that the "side collision protection block" and / or "cushion block" and / or "anti-collision body" and / or "protective cover" in the various embodiments of the first aspect described above can also be considered as an example of the protection device. The first embodiment of the second aspect Please refer to FIG. 69, FIG. 69 is a perspective view schematically showing a travel equipment 61 according to the first embodiment of the second aspect of the present disclosure. The travel equipment 61 includes a carrier 6100 for accommodating animals therein and a protection device 6101 attached to the carrier 6100 at a side of the carrier 6100. According to the present disclosure, the carrier 6100 can be installed to a base (not shown) disposed in a vehicle. According to the present disclosure, the protection device 6101 can be configured as a cushion structure capable of absorbing energy or impact caused by a side collision or a sudden change in the direction or speed of the vehicle. In this way, the animals can be stably supported in the carrier 6100 so that they do not sway or move therein, and the carrier 6100 can have improved impact resistance to protect the animals therein from injury. As mentioned above, in the present disclosure, the carrier 6100 can be installed to a base (not shown) disposed in a vehicle. In order not to confuse the present disclosure, how the carrier is installed to the base is not specifically shown herein. In this embodiment, the carrier 6100 includes a box portion 6102 (also referred to as a "box body" and optionally including a "seat cloth" wrapped outside the box body), a roof portion 6104 (which can be or include a "roof assembly" as described in the first aspect described above, i.e., can include a "roof frame" and a "roof") and a carrying handle 6106. The box portion 6102 defines an accommodation space for animals. The roof portion 6104 is detachably attached to the box portion 6102 of the carrier 6100. The carrying handle 6106 is pivotably and detachably connected to opposite sides of the box portion 6102 at its two ends.The carrier 6100 further comprises a bracket assembly (may also be referred to as a "bracket device") 6108 connected to the outer bottom portion of the box portion 6102, by which the carrier 6100 can be mounted to a base (not shown) disposed in a vehicle. It is further noted that, like the first aspect, the "box portion" and the "bracket assembly" in each of the embodiments of the second aspect can also be considered as constituent components of the "accommodation body", i.e., the accommodation body can comprise the box portion and the bracket assembly, which will not be repeated hereinafter. When viewed from the top of the box portion 6102, the box portion 6102 can be rectangular in shape, which is defined by a pair of opposite long sides extending in the longitudinal direction A6 and a pair of opposite short sides extending in the transverse direction B6. In the present embodiment, the protection device 6101 can be attached to the carrier 6100 at a side of the carrier 6100 corresponding to one of the short sides. In alternative embodiments, the protection device 6101 can be alternatively or additionally attached to the carrier 6100 at a side corresponding to one of the long sides, which will be further described with reference to the embodiments shown in Figs. 85A-85C and Figs. 86A-86C. In the present embodiment, the roof portion 6104 is dome-shaped. The roof portion 6104 has a lower periphery 6104A (may also be or provided as a "roof frame", e.g., see the corresponding part of the first aspect) corresponding to the upper periphery 6102A of the box portion 6102. The roof portion 6104 can be detachably attached to the upper periphery 6102A of the box portion 6102 at its lower periphery 6104A. In the present embodiment, the roof portion 6104 can be attached to the box portion 6102 by, for example, a buckle assembly 6110 (may also be considered as an example of a "roof locking portion"). As shown, the roof portion 6104 is foldable from its opposite short sides to the center (or from the center to the opposite short sides) to leave the box portion 6102 uncovered by the roof portion 6104 in the folded state, or to close the box portion 6102 by the roof portion 6104 in the unfolded state. When the roof portion 6104 is in the folded state, the interior of the box portion 6102 is open and accessible to the animal. The structure of the roof of the carrier according to the present disclosure will be further described hereinafter with reference to Figs. 87-93. In the present embodiment, the protection device 6101 is formed as a plate-like member. As mentioned above, the protection device 6101 is attached to the carrier 6100 at a side of the carrier 6100 corresponding to one of the short sides.Preferably, the protection device 6101 is attached to the carrier 6100 in such a manner that the protection device 6101 can be located between the carrier 6100 and a rear door (not shown) of the vehicle. In this way, the carrier 6100 can be prevented from colliding with the rear door, or an animal confined in the carrier 6100 can be prevented from being impacted or injured due to a side collision or a sudden change in speed or direction of the vehicle during travel. Second aspect second embodiment Please refer to FIG. 70, which schematically shows a side view of a travel apparatus 62 according to the second embodiment of the second aspect of the present disclosure. The travel apparatus 62 comprises a carrier 6200 and a protection device 6201 attached to the carrier 6200 at a side of the carrier 6200. The structure and configuration of the carrier 6200 are similar to those of the carrier 6100 shown in FIG. 69, including a box portion 6202, a roof portion 6204 detachably attached to the box portion 6202 through a buckle assembly 6210, carrying handles 6206 detachably and pivotably connected to opposite sides of the box portion 6202, and a support assembly 6208 connected to an outer bottom of the box portion 6202. In this embodiment, the carrier 6200 is provided with a first attachment portion 6212 on one outer side of the box portion 6202. The protection device 6201 is mainly composed of a plate-shaped body 6203 (also referred to as a “protection body”), which is made of an energy-absorbing material or an impact-absorbing material. The protection device 6201 is provided with a second attachment portion 6205 on the plate-shaped body 6203, which corresponds to the first attachment portion 6212 of the carrier 6200. In this embodiment, the protection device 6201 is attached to the carrier 6200 under cooperation of the first attachment portion 6212 and the second attachment portion 6205. In this embodiment, the protection device 6201 can be pushed to be attached to the carrier 6200 along the longitudinal direction A6. It should be noted that the “first attachment portion” and the “second attachment portion” in the second aspect of the present disclosure can be referred to as “coupling devices”, or as an example or part of “coupling devices”. In addition, it should also be noted that the “plate-shaped body” described in the present aspect refers to a body with a certain thickness, and is not limited to a “plate” shape, for example, it can also have a spherical shape or a concave-convex shape with different thicknesses, etc. Please refer to FIG. 70A and FIG. 70B, which are schematic perspective views of respective attachment portions of a protection device according to an embodiment of the present disclosure.As shown in FIG. 70A, the second attachment portion configured on the plate-shaped body 6203A can be a hook and loop tape, or a so-called hook and loop fastener, a so-called touch fastener, and a so-called magic tape. More specifically, the second attachment portion can be a hook face portion 6205A of a hook and loop tape, and a first attachment portion (not shown) of the carrier can correspondingly be a loop face portion (or vice versa). In this way, the protection device 6201A can be attached to the carrier by the loop face portion (the first attachment portion) and the hook face portion 6205A (the second attachment portion). Alternatively, as shown in FIG. 70B, the second attachment portion configured on the plate-shaped body 6203B can be a magnetic member 6205B (i.e., a first magnetic member), and a first attachment portion (not shown) of the carrier can be a corresponding magnetic member (i.e., a second magnetic member), such that the protection device 6201B can be attached to the carrier by the magnetic attraction of the first and second magnetic members. In the embodiment of FIG. 70B, the protection device 6201B is shown as including two magnetic members 6205B as the second attachment portion; however, the present disclosure is not limited thereto. In alternative embodiments, the number of second attachment portions of the protection device can vary, and the number of first attachment portions of the carrier can correspondingly vary. Furthermore, the number of first attachment portions can also vary from the number of second attachment portions, for example, one first attachment portion can be provided corresponding to two or more second attachment portions, or two or more attachment portions can be provided corresponding to one second attachment portion, and the like, that is, as long as the first attachment portion and the second attachment portion can cooperate with each other to attach the protection device 6201B to the carrier. Second aspect third embodimentAccordingly, the second attachment portion of the protection device 6301 is formed as a protrusion or block 6305 that matches the recess 6312 of the carrier 6300. In this embodiment, the protection device 6301 can be attached to the carrier 6300 by an interference fit of the protrusion or block 6305 with the recess 6312. In this embodiment, the protection device 6301 can be pushed to attach to the carrier 6300 along the longitudinal direction A6. Second aspect fourth embodiment Referring to FIG. 72, FIG. 72 schematically illustrates a side view of a travel equipment 64 according to a fourth embodiment of the second aspect of the present disclosure. The travel equipment 64 includes a carrier 6400, and a protection device 6401 attached to the carrier 6400 to provide the carrier 6400 with improved impact resistance. The structure and configuration of the carrier 6400 is similar to that of the carrier 6300 shown in FIG. 71, including a case portion 6402 having a buckle assembly 6410, a roof portion 6404 removably attached to the case portion 6402, carrying handles 6406 removably and pivotably connected to opposite sides of the case portion 6402, and a stand assembly 6408 connected to the outer bottom of the case portion 6402. The carrier 6400 differs from the carrier 6300 in that the carrier 6400 according to the present embodiment is provided with a first attachment portion having a particular shape or profile that is different from that of the first attachment portion of the carrier 6300. This corresponds to a particular profile of a second attachment portion of the protection device 6401. More specifically, the second attachment portion 6405 formed on the plate-like body 6403 of the protection device 6401 is formed to have a curled end portion. The first attachment portion 6412 of the carrier 6400 is formed as a recess having a profile corresponding to the curled end portion of the second attachment portion 6405. In this embodiment, the protection device 6401 can be attached to the carrier 6400 in a transverse direction of the carrier, i.e. parallel to a direction from a front to a rear of the vehicle. With the curled end portion, the second attachment portion 6405 can be engaged with the first attachment portion 6412 of the carrier 6400 in a relatively secure manner, such that the attachment of the protection device 6401 to the carrier 6400 can be further secured. In this embodiment, the protection device 6401 can be pushed to attach to the carrier 6400 along the transverse direction B6, in a direction from a front seat to a rear seat of the vehicle. Second aspect fifth embodiment Referring to FIGS. 73A-73C, FIGS. 73A-73C schematically illustrate a side view of a travel equipment 65 according to a fifth embodiment of the second aspect of the present disclosure. The travel equipment 65 includes a carrier 6500, and a protection device 6501 attached to the carrier 6500 to provide the carrier 6500 with improved impact resistance.The carrier 6500 has similar structure and configuration as the above carriers 6100, 6200, 6300 and 6400, including a case portion 6502 having a buckle assembly 6510, a roof portion 6504 removably attached to the case portion 6502, carrying handles 6506 removably and pivotably connected to opposite sides of the case portion 6502, and a stand assembly 6508 connected to the outer bottom of the case portion 6502. Referring to FIG. 73A, the protection device 6501 of the travel apparatus 65 includes a plate-like body 6503 made of an energy-absorbing material or impact-absorbing material. The plate-like body 6503 is connected at its lower side to a guide member 6507 by a pivot 6505, such that the plate-like body 6503 can pivot relative to the guide member 6507. One end of the guide member 6507 is connected to the plate-like body 6503 by the pivot 6505, and the distal end (i.e., the other end) of the guide member 6507 is fixed to the outer bottom of the case portion 6502 of the carrier 6500 by a connection 6509. In this embodiment, the guide member 6507 is disposed in a space defined between the outer bottom of the case portion 6502 and the stand assembly 6508. It is noted that the “guide member 6507” and “pivot 6505” in this embodiment can serve as an example or part of the “linkage device”. As shown in FIG. 73A, when the protection device 6501 is attached to the carrier 6500 to provide impact resistance, the plate-like body 6503, and thus the protection device 6501, is pivoted to stand upright and is pushed in the longitudinal direction A6 to be attached to the carrier 6500. The attached protection device 6501 is positioned between the carrier 6500 and the rear door of the vehicle to prevent the carrier 6500 from accidentally colliding with the rear door (not shown) of the vehicle due to a side impact or a sudden change in speed or direction of the vehicle while driving. When the protection device 6501 is detached from the carrier 6500 (i.e., separated from each other), the plate-like body 6503 is first pivoted to a horizontal position by the pivot 6505. That is, the plate-like body 6503 will be parallel to the outer bottom surface of the carrier 6500, as shown in FIG. 73B. Then, the plate-like body 6503 can be pushed and guided to move along the guide member 6507 towards the carrier 6500 until it is completely located below the bottom of the carrier 6500. In this way, the plate-like body 6503 can be received and contained in the space between the outer bottom of the case portion 6502 and the stand assembly 6508, as shown in FIG. 73C.Figures 74A and 74B are side views schematically illustrating a travel apparatus 66 comprising a carrier 6600 and a protective device 6601 according to a sixth embodiment of the second aspect of the present disclosure. In more detail, Figure 74A shows the protective device 6601 attached to the carrier 6600 to provide improved impact resistance for the carrier 6600, while Figure 74B shows the protective device 6601 detached from the carrier 6600. The carrier 6600 has a similar structure and configuration as the carriers 6100, 6200, 6300, 6400 and 6500 described above, including a box portion 6602 having a buckle assembly 6610, a roof portion 6604 detachably attached to the box portion 6602, carrying handles 6606 detachably and pivotably connected to opposite sides of the box portion 6602, and a bracket assembly 6608 connected to the outer bottom of the box portion 6602. In this embodiment, the protective device 6601 to be attached to the carrier 6600 comprises a plate-like body 6603 and a coupling member 6605 arranged at the bottom of the plate-like body 6603. The coupling member 6605 has one end connected to the bottom of the plate-like body 6603, and is provided with a coupling portion 6607 such as a clamping structure at its distal end (i.e. the other end). The coupling portion 6607 has a profile corresponding to the rod structure of the bracket assembly 6608, such that the protective device 6601 can be attached to the carrier 6600 by coupling or clamping of the coupling portion 6607 with the bracket assembly 6608. Preferably, the length La of the coupling member 6605 is sized such that, when the protective device 6601 is attached to the carrier 6600, the plate-like body 6603 abuts against the side of the carrier 6600, enabling an animal in the carrier 6600 to be supported and protected in a relatively safe and stable manner. In this embodiment, the protective device 6601 is pushed to be attached to the carrier 6600 along the longitudinal direction A6. It is noted that the “coupling member 6605” and / or “coupling portion 6607” in this embodiment can be taken as an example or part of the “coupling device”.The carrier 6700 has a similar structure and configuration as the carriers described above, including a box portion 6702 having a buckle assembly 6710, a roof portion 6704 removably attached to the box portion 6702, carrying handles 6706 removably and pivotably connected to opposite sides of the box portion 6702, and a cradle assembly 6708 connected to the outer bottom of the box portion 6702. In the embodiment as shown, the carrier 6700 is mounted to a base 6750 disposed in a vehicle (not shown). The structure and configuration of the base 6750 and the details of the mounting of the carrier 6700 to the base 6750 are not the purpose of the present disclosure, and are thus omitted here to avoid confusion of the present disclosure. In the present embodiment, the protective device 6701 is attached to the base 6750, rather than the carrier 6700. The protective device 6701 includes a plate-shaped body 6703 made of an energy-absorbing or impact-absorbing material and a connecting rod 6705 (as an example of a "coupling device") connected to the bottom of the plate-shaped body 6703. The distal end of the connecting rod 6705 is connected to the base 6750. The length Lb of the connecting rod 6705 is sized such that, when the protective device 6701 is attached to the base 6750, the plate-shaped body 6701 is brought against the side of the carrier 6700, so that the carrier 6700 can be supported and protected in a relatively safe and stable manner. Second aspect eighth embodiment Please refer to FIG. 76, FIG. 76 schematically shows a side view of a travel equipment 68 according to the eighth embodiment of the second aspect of the present disclosure. The travel equipment 68 includes a carrier 6800, and a protective device 6801 attached to the carrier 6800 to provide improved impact resistance for the carrier 6800. The carrier 6800 has a similar structure and configuration as the carriers described above, including a box portion 6802 having a buckle assembly 6810, a roof portion 6804 removably attached to the box portion 6802, carrying handles 6806 removably and pivotably connected to opposite sides of the box portion 6802, and a cradle assembly 6808 connected to the outer bottom of the box portion 6802. The carrier 6800 differs from the carriers described above in that, in the present embodiment, the carrier 6800 includes connectors 6820 arranged on opposite sides of the upper periphery 6802A of the box portion 6802, in particular on the opposite short sides. In this way, the roof portion 6804 in the unfolded state can be connected to the box portion 6802 through the connectors 6820 of the carrier 6800.More specifically, the connectors can be arranged on the accommodation body and / or the ceiling assembly, the connectors 6820 can be magnetic connectors (as an example of a "ceiling locking device") including a pair of magnets capable of being attracted to each other, one of which is arranged on the short side of the upper periphery 6802A of the box portion 6802, and the other of which is arranged on the short side of the lower periphery 6804A of the ceiling portion 6804. In this way, the ceiling portion 6804 can be attached to the box portion 6802 by this magnetic attraction force. In order to avoid the protection device 6801 hindering or obstructing the connection between the ceiling portion 6804 and the box portion 6802, the plate-shaped body 6803 can be formed to have an opening or a recess (or a slot) corresponding to the connectors 6820, etc. Referring to FIGS. 76A to 76C, various designs of the plate-shaped body of the protection device are shown. As shown in FIG. 76A, the plate-shaped body 6803A of the travel equipment 68A is formed to have a vertical through opening, or a vertical recess (e.g., a sliding groove, or a slot) 68031 so as to be installed in a direction from the top to the bottom of the vehicle 6800A, so that the protection device including the plate-shaped body 6803A is attached to the vehicle 6800A. When the protection device including the plate-shaped body 6803A is attached to the vehicle 6800A, the connectors 6820A can be located in the top of the vertical recess 68031, or can be located at one end of the vertical recess 68031 close to the center of the protection device. On the periphery of the top of the vertical recess 68031, a magnetic strip or tape 68031A corresponding to the magnetic connectors 6820A of the vehicle 6800A can be arranged. In this way, the protection device can be attached to the vehicle 6800A by the magnetic attraction force between the magnetic strip or tape 68031A of the plate-shaped body 6803A and the magnetic connectors 6820A of the vehicle 6800A. It needs to be mentioned that the "connectors 6820" and the "vertical recess 68031" in this embodiment can be an example or a part of the "coupling device", and the "magnetic connectors 6820A" and the "magnetic strip or tape 68031A" can also be an example or a part of the "coupling device".Alternatively, as shown in FIG. 76B, the plate-shaped body 6803B of the travel equipment 68B is formed to have a horizontal through opening or a horizontal recess (e.g., a slot, or a notch) 68033 so as to be mounted in a direction from right to left of the vehicle 6800B, so that the protection device including the plate-shaped body 6803B is attached to the vehicle 6800B. When the protection device including the plate-shaped body 6803B is attached to the vehicle 6800B, the connector 6820B can be located within the right end of the horizontal recess 68033. On the periphery of the right end of the horizontal recess 68033, a magnetic strip or tape 68033A corresponding to the magnetic connector 6820B of the vehicle 6800B can be arranged. In this way, the protection device can be attached to the vehicle 6800B by the magnetic attraction force between the magnetic strip or tape 68033A of the plate-shaped body 6803B and the magnetic connector 6820B of the vehicle 6800B. Alternatively, as shown in FIG. 76C, the plate-shaped body 6803C of the travel equipment 68C is formed to have a central through-hole 68035 with a closed periphery, and a magnetic strip or tape 68035A is arranged on the periphery of the opening 68035. When the protection device including the plate-shaped body 6803C is attached to the vehicle 6800C, the connector 6820C can be located within the central through-hole 68035. In this way, the plate-shaped body 6803C can be loaded from the door to the interior of the vehicle in the longitudinal direction A6, and the protection device can be attached to the vehicle 6800C by the magnetic attraction force between the magnetic strip or tape 68035A of the plate-shaped body 6803C and the magnetic connector 6820C of the vehicle 6800C.When unfolded, the ceiling portion 6904 can be attached to the case portion 6902 by the magnetic attraction force of the connectors 6920 arranged on the short sides of the case portion 6902. Furthermore, in order to avoid the protection device 6901 from interfering with or obstructing the connection between the ceiling portion 6904 and the case portion 6902, the plate-shaped body 6903 can be formed with openings or recesses corresponding to the connectors 6920. In the present embodiment, the plate-shaped body 6903 is formed with recesses 69031 corresponding to the connectors 6920, instead of the through-holes 68031, 68033, and 68035 described above. The depth d of the recesses 69031 is dimensioned so that the connectors 6920 are positioned therein unobstructed when the protection device 6901 is attached to the carrier 6900. On the top of the recesses 69031, magnetic connectors 69031A corresponding to the magnetic connectors 6920 of the carrier 6900 can be arranged. In this way, the protection device 6901 can be attached to the carrier 6900 by the magnetic attraction force between the magnetic connectors 69031A of the plate-shaped body 6903 and the magnetic connectors 6920 of the carrier 6900. It should be noted that the "connectors 6920" and "openings or recesses" in the present embodiment can serve as an example or part of the "coupling device", and the "magnetic connectors 6920" and "magnetic connectors 69031A" can serve as an example or part of the "coupling device".More specifically, as shown in FIG. 78B, one end of the fixing strap 61009 is connected to the upper portion of the plate-shaped body 61003 of the protection device 61001, the fixing strap 61009 extends in the longitudinal direction A6 of the carrier 61000 and is connected to the carrying handle 61006. Specifically, the carrying handle 61006 is provided with a connection portion 61006A, for example, a ring, disposed at the middle position of the carrying handle 61006. The fixing strap 61009 is provided with a connection member 61011 (for example, a hook) at its distal end, and is connected to the connection portion 61006A of the carrying handle 61006 through the connection member 61011. Optionally, the fixing strap 61009 is provided with a secure member 61013, such as an adjustment buckle and a ladder lock, so that the length of the fixing strap 61009 is fixed after adjustment. In an example, the secure member 61013 can include or be configured as a length adjuster for adjusting the length of the fixing strap 61009. In the present embodiment, in addition to the optional connection of the coupling member 61005 to the support assembly 61008 through the coupling portion 61007, the carrier 61000 can be supported and protected in a relatively stable manner through the connection between the plate-shaped body 61003 and the carrying handle 61006. In addition, it should be noted that the “fixing strap 61009”, “connection portion 61006A” and / or “connection member 61011” in the present embodiment can serve as an example or part of the “coupling device”.Alternatively or additionally, in the present embodiment, the protection device 61101 can be attached to the carrier 61100 by a fixing strap 61109, which is connected to the upper portion of the plate-shaped body 61103 and extends outwardly therefrom. More specifically, as shown in FIG. 79B, one end of the fixing strap 61109 is connected to the upper portion of the plate-shaped body 61103 of the protection device 61101, the fixing strap extends toward the carrying handle 61106 in the longitudinal direction A6 of the carrier 61100, and over the carrying handle 61106. In particular, the carrying handle 61106 has a recess 61106A formed on the middle portion thereof to receive and hold the fixing strap 61109 thereover. The fixing strap 61109 is provided with a connecting member 61111 (e.g., a hook) at its distal end to pass over the carrying handle 61106, and is connected to the bracket assembly 61108 at the outer bottom portion of the carrier 61102 by the connecting member 61111. In particular, the protection device 61101 is disposed at one side of the carrier 61100 along the longitudinal direction A6, while the connecting member 61111 is connected at the other side of the carrier 61100 along the longitudinal direction, e.g., to the outer bottom portion of the carrier 61100 at the other side, such as to the bracket assembly 61108. Optionally, the fixing strap 61109 is provided with a fixing member 61113, such that the length of the fixing strap 61109 is fixed after adjustment. In an example, the fixing member 61113 can comprise or be configured as a length adjuster, such as an adjustment buckle, for adjusting the length of the fixing strap 61109. In the present embodiment, in addition to the optional connection between the first attachment portion 61112 and the second attachment portion 61105, the carrier 61100 can be supported and protected in a relatively stable manner by the fixing strap 61109. It is noted that the connection structures such as the “fixing strap 61109”, “connecting member 61111”, and / or “recess 61106A” in the present embodiment can serve as an example or part of the “coupling device”.The carrier 61200 has a similar structure and configuration as the above carriers, including a case portion 61202 with a buckle assembly 61210, a top portion 61204 detachably attached to the case portion 61202, carrying handles 61206 detachably pivotably connected to opposite sides of the case portion 61202, and a stand assembly 61208 connected to the outer bottom of the case portion 61202. Similar to the travel device 610 and the travel device 611, in this embodiment, the protection device 61201 can alternatively or additionally be attached to the carrier 61200 by a fixing strap 61209 extending outwardly from an upper portion of the plate-like body 61203. The difference is that, in this embodiment, the fixing strap 61209 extends along the longitudinal direction A6 of the carrier 61200 towards the carrying handle 61206, and passes around the carrying handle 61206, and then reverses in the direction towards the plate-like body 61203. The fixing strap 61209 thereby forms a loop 61215 with the aid of an attachment portion 61217, forming a loop at the carrying handle 61206 for connection. In this embodiment, as shown in FIG. 80C, the attachment portion 61217 can be provided by a hook-and-loop strap (or so-called hook-and-loop fastener, so-called touch fastener, and so-called magic tape) including a hook face portion 61217A and a loop face portion 61217B (or vice versa). In this embodiment, in addition to the optional connection between the first attachment portion 61212 and the second attachment portion 61205, the carrier 61200 can be supported and protected in a relatively stable manner by the connection between the plate-like body 61203 and the carrying handle 61206. It should be noted that the connection structure such as the “fixing strap 61209” and / or “attachment portion 61217” in this embodiment can be taken as an example or part of the “coupling device”. The thirteenth embodiment of the second aspect Please refer to FIG. 81A and FIG. 81B, which schematically show a travel device according to the thirteenth embodiment of the second aspect of the present disclosure, wherein FIG. 81A is a perspective view of the travel device 613, and FIG. 81B is a side view of the travel device 613. The travel device 613 includes a carrier 61300, and a protection device 61301 attached to the carrier 61300 to provide improved impact resistance for the carrier 61300.The carrier 61300 has a similar structure and configuration to the above-described carriers, including a case portion 61302 having a buckle assembly 61310, a top portion 61304 detachably attached to the case portion 61302, carrying handles pivotably and detachably connected to opposite sides of the case portion 61302, and a stand assembly 61308 connected to an outer bottom portion of the case portion 61302. It should be noted that, in FIGS. 81A and 81B, the carrying handles of the carrier are omitted for the sake of clarity. Like the travel device 610, in the present embodiment, the protection device 61301 is attached to the carrier 61300 by a fixing strap 61309 extending outward from an upper portion of the protection device 61301 instead of or in addition to the carrying handles attached to opposite sides of the case portion 61302. As shown in FIG. 81B, the carrier 61300 includes an additional handle 61314 attached to a top portion of the top portion 61304, one end of the fixing strap 61309 being connected to the upper portion of the protection device 61301, the other end extending toward the handle 61314, and being connected to the handle 61314 by a connecting member 61311 (e.g., a hook) instead of being connected to the carrying handles attached to opposite sides of the case portion 61302. Furthermore, the strap 61309 is optionally provided with a fixing member 61313 such that the length of the fixing strap 61309 is fixed after adjustment. In an example, the fixing member 61313 can include or be configured as a length adjuster, such as an adjustment buckle, for adjusting the length of the fixing strap 61309. Alternatively or additionally, the body 61303 of the protection device 61301 is inverted L-shaped. That is, the body 61303 made of an energy-absorbing material or an impact-absorbing material is composed of a first portion 61303A and a second portion 61303B integrally formed at a right angle with each other. As shown in FIG. 81B, the second portion 61303B of the body 61303 extends from a top portion of the first portion 61303A in a longitudinal direction A6 and / or a horizontal direction (i.e., a direction extending along a short side of the carrier 61300) of the carrier 61300, the height thereof being slightly higher than a top portion of the top portion 61304, and one end of the fixing strap 61309 being connected to an end surface of the second portion 61303B of the body 61303. That is, the first portion 61303A extends in a height direction of the carrier 61300 and is disposed at a side of the carrier 61300, and the second portion 61303B extends from the first portion 61303A at a top portion of the carrier 61300 in the longitudinal direction A6.In this way, the connection of the other end of the securing strap 61309 to the handle 61304 can provide relatively sufficient and stable support for the carrier 61300. In this embodiment, in addition to the optional connection between the first attachment portion 61312 and the second attachment portion 61305, the carrier 61300 can also be supported and protected in a relatively stable manner by the connection between the body 61303 of the protective device 61301 and the handle 61314 at the top of the roof portion 61304. It should be noted that the connection structures such as the "securing strap 61309", "connecting member 61311" and / or "securing member 61313" in this embodiment can serve as an example or part of the "coupling device". Fourteenth embodiment of the second aspect Please refer to FIG. 82A and FIG. 82B, which schematically show a travel equipment 614 according to the fourteenth embodiment of the second aspect of the present disclosure, wherein FIG. 82A is a perspective view of the travel equipment 614, and FIG. 82B is a side view of the travel equipment 614. The travel equipment 614 includes a carrier 61400, and a protective device 61401 attached to the carrier 61400 to provide improved impact resistance for the carrier 61400. The carrier 61400 has a structure and configuration similar to the carrier 61300 described above, including a box portion 61402 having a buckle assembly 61410, a roof portion 61404 detachably attached to the box portion 61402, carrying handles pivotably and detachably connected to opposite sides of the box portion 61402, and a stand assembly 61408 connected to the outer bottom of the box portion 61402. In FIG. 82A and FIG. 82B, the carrying handles of the carrier are omitted for clarity. Similar to the travel equipment 613, in this embodiment, the protective device 61401 is alternatively or additionally attached to the carrier 61400 by a securing strap 61409 extending outwardly from the upper portion of the protective device 61401. The difference is that in this embodiment, the connecting portion of the first portion 61403A and the second portion 61403B is chamfered, rather than being at a right angle. In addition, one end of the securing strap 61409 is connected to the upper portion of the protective device 61401, and at its distal end (the other end) is connected to the connecting portion 61414A (directly provided on the roof portion 61404) by a connecting member 61411, rather than being connected to the carrying handle attached to the opposite side of the box portion 61402. In addition, the strap 61409 is optionally provided with a securing member 61413, so that the length of the securing strap 61409 is fixed after adjustment.In this embodiment, in addition to the optional connection between the first attachment portion 61412 and the second attachment portion 61405, the carrier 61400 can be supported and protected in a relatively stable manner by a connection between the body 61403 of the protection device 61401 and the connection portion 61414A at the top of the ceiling portion 61404. It should be noted that the connection structure such as the “fixing band 61409”, the “connection member 61411”, and / or the “fixing member 61413”, and / or the “first attachment portion 61412” and / or the “second attachment portion 61405” in this embodiment can serve as an example or part of the “coupling device”. According to the present disclosure, the fixing band as shown in the figures can be an elastic band or a non-elastic band. It is worth noting that the elastic band can help absorb the impact or collision caused by the side collision or the sudden change of the speed or direction of the vehicle during driving, while the non-elastic band can help to disperse the impact and increase the safety strength. According to the present disclosure, the body of the protection device is made of energy-absorbing or impact-absorbing material. Examples of such materials include but are not limited to expanded polyethylene (EPE), expanded polypropylene (EPP), expanded polystyrene (EPS), expanded polyolefin (EPO), memory foam materials such as polyurethane (PU) foam, silicone, and latex. The body of the protection device can be a single-layer structure or a multi-layer structure. The body of the protection device can be formed into various shapes in cross-section. Referring to FIGS. 83A to 83G, various designs of plate-shaped bodies according to the present disclosure are shown. The plate-shaped bodies 615A to 615E are shown to have respective cross-sectional shapes. It should be noted that the “cross-section” here refers to the cross-section of the plate-shaped body when viewed from the front side of the carrier. For example, as shown in FIG. 83A, the cross-section of the plate-shaped body 615A can be a rectangular shape. For another example, as shown in FIGS. 83B and 83C, the plate-shaped bodies 615B and / or 615C can be composed of two portions with different thicknesses (i.e., corresponding to the width of the cross-section), wherein the first portion has a constant thickness, and the second portion extends from one end (such as the upper end) of the first portion and has a thickness gradually increasing or decreasing from the first portion. Optionally, the second portion with a gradually changing thickness can be configured such that one surface is flush with one surface of the first portion, and the other surface is at an angle to the other surface of the first portion (see FIG. 83B); or the second portion can be configured such that both surfaces are at an angle to the two surfaces of the first portion (see FIG. 830. In another example, the first portion and / or the second portion can have a shape with a variable thickness other than a gradually changing thickness.For example, as shown in FIG. 83D, the plate-shaped body 615D has a first portion and a second portion that are perpendicular or angled to each other. Optionally, the first portion and the second portion can each have a constant thickness, where the thickness of the first portion can be equal to the thickness of the second portion, but is not limited thereto, i.e., can also be less than or greater than the thickness of the second portion. Further, the first portion and / or the second portion can also have a variable thickness. For example, as shown in FIG. 83E, at least a portion of the cross-section of the plate-shaped body 615E can be curved, e.g., have an arcuate corner, etc. However, it is to be understood that the shapes of the plate-shaped bodies in the various embodiments of the second aspect of the present application can be combined or replaced with each other without conflicting structures. The plate-shaped body 615F is shown as having a two-layer structure, while the plate-shaped body 615G is shown as having a three-layer structure. In these embodiments, the plate-shaped bodies 615F and 615G are made by lamination of more than one layer, and thereby provide a composite softness to absorb and release the impact or shock caused by a side impact or sudden change in vehicle speed or direction. That is, a relatively soft material can help absorb the impact or shock caused by a side impact or sudden change in vehicle speed or direction, while a relatively rigid material can help to disperse the impact and increase the safety strength. In view of this, the relatively rigid material can be arranged as an outer layer of the plate-shaped body having a multi-layer structure, where the relatively soft material can be sandwiched therein or as an inner layer. Taking the plate-shaped body 615F shown in FIG. 83F as an example, the layer 6151F can be made of a relatively rigid material and serves as an outer layer arranged on the side close to the rear door of the vehicle, while the layer 6152F can be made of a relatively soft material and serves as an inner layer disposed on the side close to the vehicle. Taking the plate-shaped body 615G as an example, the layer 6152G made of a relatively soft material is sandwiched by the layers 6151G and 6153G. This three-layer structure provides improved strength and impact resistance to the plate-shaped body, and thereby provides improved strength and impact resistance to the protection device. Referring to FIGS. 84A and 84B, plate-shaped bodies 61603A and 61603B of different sizes according to the present disclosure are shown. As shown, the vehicles 61600A and 61600B have a certain width L61 defined by the box portion in the transverse direction B6. In the embodiment of FIG. 84A, the width L62 of the plate-shaped body 61603A is greater than the width L61 of the vehicle 61600A, while in the embodiment of FIG. 84B, the width L63 of the plate-shaped body 61603B is less than the width L61 of the vehicle 61600B.Notably, in both cases, the central axis of the respective plate-like body 61603A, 61603B (i.e., the axis that passes vertically through the respective midpoints of the width L62, L63) and the central axis of the carrier 61600A, 61600B (i.e., the axis that passes vertically through the midpoint of the width L61) will coincide. Second aspect fifteenth embodiment Please refer to FIGS. 85A to 85C, which schematically show a travel apparatus according to the second aspect fifteenth embodiment of the present disclosure, wherein FIG. 85A is a perspective view of the travel apparatus 624, and FIG. 85B is a side view of the travel apparatus 624. The travel apparatus 624 includes a carrier 62400 and a protection device 62401 attached to the carrier 62400 at the side of the carrier 62400. The structure and configuration of the carrier 62400 are similar to those of the carrier 6100 shown in FIG. 69, including a box portion 62402, a roof portion 62404 detachably attached to the box portion 62402 by a buckle assembly 62410, carrying handles 62406 detachably and pivotably connected to opposite sides of the box portion 62402, and a bracket assembly 62408 connected to the outer bottom of the box portion 62402, or the like. Similarly, the box portion 62402 can be rectangular when viewed from the top of the box portion 62402, defined by a pair of opposite long sides extending in the longitudinal direction A6 and a pair of opposite short sides extending in the transverse direction B6. The protection device 62401 is mainly composed of a plate-like body 62403 made of an energy-absorbing material or an impact-absorbing material. Alternatively or additionally, in the present embodiment, the protection device 62401 can be attached to the carrier 62400 at the side corresponding to one of the long sides. More specifically, when the travel apparatus 624 is installed in a vehicle, the protection device 62401 can be attached to the carrier 62400 while being sandwiched by the long side of the carrier 62400 and the seat back 630. In the present embodiment, the protection device 62401 is attached to the carrier 62400 by a fixing strap 62409 that connects the protection device 62401 and extends from the protection device 62401, and has a connecting member 62411, such as a hook, at the distal end. Similarly, the plate-like body 62403 of the protection device 62401 (as shown in FIG. 85C) can be optionally covered with cloth for ease of connection with the fixing strap 62409. The fixing strap 62409 can be connected to the connecting portion 62414A of the carrier 62400 at the distal end thereof with the connecting member 62411.In the present embodiment, the connecting portion 62414A is configured at a position outside the side wall of the case portion 62402, corresponding to the position of the fixing band 62409 and the connecting member 62411 of the protection device 62401. The connecting portion 62414A can be provided directly outside the side wall of the case portion 62402, or connected to the side wall of the case portion 62402 through a connecting band 62414B connected to and extending from the side wall of the case portion 62402, as shown in FIG. 85A. It should be noted that the connecting structures such as the “fixing band 62409”, “connecting member 62411”, “connecting portion 62414A”, and / or “connecting band 62414B” in the present embodiment can serve as an example or part of the “coupling device”. Second aspect sixteenth embodiment Please refer to FIGS. 86A to 86C, which schematically show a travel equipment according to the second aspect sixteenth embodiment of the present disclosure, wherein FIG. 86A is a perspective view of the travel equipment 625, and FIG. 86B is a side view of the travel equipment 625. The travel equipment 625 includes a carrier 62500 and a protection device 62501 attached to the carrier 62500 at the side of the carrier 62500. The structure and configuration of the carrier 62500 are similar to those of the carrier 6100 shown in FIG. 69, including a case portion 62502, a roof portion 62504 detachably attached to the case portion 62502 through a buckle assembly 62510, a carrying handle 62506 detachably and pivotably connected to opposite sides of the case portion 62502, and a bracket assembly 62508 connected to the outer bottom of the case portion 62502. Similarly, when viewed from the top of the case portion 62502, the case portion 62502 can be rectangular in shape, defined by a pair of opposite long sides extending in the longitudinal direction A6 and a pair of opposite short sides extending in the transverse direction B6. The protection device 62501 is mainly composed of a body 62503 made of energy-absorbing or impact-absorbing material. Similar to the embodiments shown in FIGS. 85A to 85C, in the present embodiment, the protection device 62501 can be attached to the carrier 62500 at the side corresponding to one of the long sides. More specifically, when the travel equipment 625 is installed in a vehicle, the protection device 62501 can be attached to the carrier 62500 and sandwiched by the long side of the carrier 62500 and the seat back 630. As shown in FIG. 86C, the body 62503 of the protection device 62501 is inverted L-shaped. That is, the body 62503 made of energy-absorbing or impact-absorbing material is composed of a first portion 62503A and a second portion 62503B integrally formed at a right angle with each other.As shown in FIGS. 86A and 86B, the second portion 62503B of the body 62503 extends from the top of the first portion 62503A in the horizontal direction and the lateral direction B6 of the vehicle 62500, which is slightly higher than the top of the standing carrying handle 62506 or the top of the ceiling portion 62504 (when the carrying handle 62505 is removed or pivoted to the horizontal position), to cover the top of at least a portion of the vehicle 62500. Additionally or alternatively, in the present embodiment, referring to FIGS. 86A to 86C, the protection device 62501 is disposed in the vehicle by a fixing strap 62509 that is wrapped around the headrest 630A of the vehicle instead of or in addition to the vehicle. More specifically, the fixing strap 62509 can be connected to the upper portion of the protection device 62501 at one end 62509A thereof and extend outwardly therefrom. The fixing strap 62509 can extend, for example, from the front side of the seat 630 (i.e., at the position where the protection device 62501 is provided) via one side (i.e., the side connected to the end 62509A) of the protection device 62501 (specifically, the body 62503 thereof) toward the rear side of the seat 630, wrap around the headrest 630A (e.g., can wrap around at the position where the headrest 630A is connected to the seat 630) from the rear side of the seat 630, and then extend toward the front side of the seat 630 (i.e., from the other side of the headrest 630A to the front side of the seat 630) so as to be connected to the other side (not shown) of the body 62503 of the protection device 62501 by the other end (i.e., the end away from the end 62509A) of the fixing strap 62509. In this way, the protection device 62501 can be securely attached to the seat 630 in addition to being attached to the vehicle 62500. Optionally, the strap 62509 can be provided with a fixing member (not shown) such that the length of the fixing strap 62509 is fixed after adjustment. It should be noted that the connection structure of the present embodiment, such as the “fixing strap 62509”, can serve as an example or a part of the “coupling device”. Additionally or alternatively, in the present embodiment, the contour of the inner surface of the protection device 62501 can correspond to the contour of the vehicle 62500. More specifically, the portion of the first portion 62503A of the protection device 62501 that is connected to the second portion 62503B has a domed inner surface (facing the surface of the vehicle 62500 when disposed in the vehicle) such that the contour of the inner surface of the protection device 62501 coincides with the contour of the ceiling portion 62504 of the vehicle 62500. In this way, the protection device 62501 can improve the ability to prevent the pet from being injured in the event of an accident or a side collision.Although in this embodiment, the protection device 62501 is shown as having a dome-shaped inner surface; it should be noted that the contour of the inner surface of the protection device 62501 is not limited thereto. It should be noted that the protection devices 62401 and 62501 are configured in a similar manner to those shown in Figs. 83A to 83G. More specifically, the bodies 62403, 62503 of the protection devices 62401, 62501 can be made of an energy-absorbing material or an impact-absorbing material. Examples of such materials include, but are not limited to, expanded polyethylene (EPE), expanded polypropylene (EPP), expanded polystyrene (EPS), expanded polyolefin (EPO), memory foam materials such as polyurethane (PU) foam, silicone, and latex, can be a single-layer structure or a multi-layer structure, and can be formed into various shapes of cross-section. For example, the bodies 62403, 62503 of the protection devices 62401, 62501 can be composed of an energy-absorbing material or an impact-absorbing material such as EPP or EPS, which can be sandwiched between two sheets made of polyethylene (PE) each having a thickness of 61 mm. Additionally and alternatively, the bodies 62403, 62503 of the protection devices 62401, 62501 can be optionally covered with cloth for ease of connection with the fixing belts 62409, 62509. According to the present embodiment, by attaching the protection device to the vehicle at a position between the vehicle and the pet seat, it is possible to protect the head of the pet accommodated in the vehicle from injury in the event of an accident or a side collision. The safety of the pet carried in the vehicle can be improved. It should be noted that in the embodiments shown in Figs. 85A to 85C and Figs. 86A to 86C, the protection devices 62401, 62501 are attached to the carriers 62400, 62500 to be installed in the vehicle by the fixing belts 62409, 62509. However, the present disclosure is not limited thereto. According to the present disclosure, the protection device can be attached to the carrier at a side corresponding to one of the long sides in a manner similar to the embodiments shown in Figs. 69 to 82A and 82B, while the carrier includes a coupling device of various configurations such as an attachment portion and / or an attachment member, etc. as described above. According to the present disclosure, the impact resistance of the carrier can be further improved by modifying the structure of the ceiling portion of the carrier. This will be specifically described in various embodiments of the third aspect of the present disclosure. Insofar as the structures do not conflict, the various embodiments of the present aspect can also include any structure or combination of a plurality of structures in the various embodiments of the first aspect and / or the second aspect.Referring to FIG. 87, a side view of a carrier 61700 of a travel apparatus according to the first embodiment of the third aspect of the present disclosure is schematically shown. The carrier 61700 has a similar structure and configuration as the carriers in any of the embodiments of the second aspect described above, including a box portion 61702 having a buckle assembly 61710, a canopy portion 61704 removably attached into the box portion 61702, carrying handles 61706 removably and pivotably connected to opposite sides of the box portion 61702 by pivots 61762, and a stand assembly 61708 connected to the outer bottom of the box portion 61702. In this embodiment, the canopy portion 61704 is mainly composed of a pair of U-shaped frames 61742 and a plurality of U-shaped support bars (may also be collectively referred to as “U-shaped stands”) 61746 spaced apart from each other. With the cover 61744 connected to these frames 61742 and support bars 61746 by means of, for example, binding or gluing, the canopy portion 61704 provides a sheltering effect for the animals in the box portion 61702 when in the unfolded state. The U-shaped frames 61742 are connected to the cover 61744 (may also be referred to as “canopy”) at the lower periphery of the canopy portion 61704 and are pivotally connected to opposite sides of the box portion 61702 by respective pivots 61748, thereby enabling the canopy portion 61704 to be folded or unfolded. When unfolded to cover the box portion 61702, the canopy portion 61704 can be secured to the opposite short sides of the box portion 61702 by magnetic connectors 61720. In this embodiment, the canopy portion 61704 is divided into two halves, each half including two support bars 61746. The cover 61744 is divided into a total of five respective regions 61744A to 61744E (i.e., 61744A, 61744B, 61744C, 61744D, 61744E). By increasing the number of support bars 61746, the canopy portion 61704 can be provided with improved support for impact resistance. As an alternative, each half of the canopy portion 61704 can include at least two support bars, for example but not limited to three, four, or five support bars. It is noted that the cover having these regions can be respectively composed of “sheets” or “sheet-like pieces” that are joined to each other, with each sheet or sheet-like piece forming a region; or alternatively, the cover can be a one-piece structure, with these regions being respectively a part thereof.The structure and configuration of the carrier 61800 is similar to the carrier 61700 as shown in FIG. 87, including a box portion 61802 having a buckle assembly 61810, a roof portion 6184 detachably attached to the box portion 61802, carrying handles 61806 pivotably and detachably connected to opposite sides of the box portion 61802 by pivots 61862, and a brace assembly 61808 connected to the outer bottom of the box portion 61802. The roof portion 6184 has a structure and configuration similar to the roof portion 6174 except for the number of support bars 61846, including U-shaped brackets 61842 connected to the box portion 61802 by respective pivots 61848, and support bars 61846 for supporting the covers 61844. In this embodiment, each half of the roof portion 6184 includes five support bars 61846. That is, the roof portion 6184 is provided with a total of ten support bars 61846, such that the covers 61844 are divided into ten regions 61844A to 61844K (i.e., 61844A, 61844B, 61844C, 61844D, 61844E, 61844F, 61844G, 61844H, 61844L 61844J, 61844K). With the increase in the number of support bars, the roof portion 6184, and hence the carrier 61800, can have improved impact resistance compared to the carrier 61700. The support bars can be selected as strip-shaped flexible members made of plastic or hardware (such as metal), but are not limited thereto. Preferably, some or all of the support bars 61746, 61846 can be made of energy-absorbing or impact materials as described above, in order to provide the carrier with improved impact resistance to prevent the animals therein from being impacted or injured due to side impact or sudden change in vehicle speed or direction.The canopy portion 6194 also has a structure and configuration similar to that of the canopy portion 6174, including a U-shaped frame 61942 connected to the case portion 61902 by respective pivots 61948, and four support rods 61946 for supporting a cover 61944. Similar to the canopy portion 6174, the cover 61944 of the canopy portion 6194 is divided into five regions 61944A to 61944E (i.e., 61944A, 61944B, 61944C, 61944D, 61944E). The carrier 61900 differs from the carrier 61700 in that, in the present embodiment, the cover 61944 has embedded therein, in the central region 61944C thereof, a protective device 61901. The protective device 61901 can be formed as a plate or sheet made of an energy-absorbing or impact-absorbing material as described above, thereby providing the carrier with improved impact resistance to prevent the animals carried therein from being impacted or injured due to a side collision or a sudden change in the speed or direction of the vehicle. Third Aspect Fourth Embodiment Referring to FIGS. 90A and 90B, in which FIG. 90A schematically illustrates a carrier 62000 according to the fourth embodiment of the third aspect of the present disclosure, and FIG. 90B schematically illustrates the arrangement of the protective device of the present embodiment. The carrier 62000 has a structure and configuration similar to that of the carrier 61700 shown in FIG. 87, including a case portion 62002 having a buckle assembly 62010, a canopy portion 62040 detachably attached to the case portion 62002, carrying handles 62006 pivotably and detachably connected to opposite sides of the case portion 62002 by pivots 62062, and a cradle assembly 62008 connected to the outer bottom of the case portion 62002. The canopy portion 62040 also has a structure and configuration similar to that of the canopy portion 6174, including a U-shaped frame 62042 connected to the case portion 62002 by respective pivots 62048, and four support rods 62046 for supporting a cover 62044. Similar to the canopy portion 6174, the cover 62044 of the canopy portion 62040 is divided into five regions 62044A to 62044E (i.e., 62044A, 62044B, 62044C, 62044D, 62044E). The carrier 62000 differs from the carrier 61700 in that, in the present embodiment, the canopy portion 62040 includes a plurality of protective devices 62001 attached to the outer and / or inner surfaces of the regions 62044A to 62044E.Protective devices 62001 can be formed as plates or sheets made of energy-absorbing or impact-absorbing materials as described above, thereby providing improved impact resistance for the carrier to prevent the animals carried therein from being impacted or injured due to side impact or sudden change in vehicle speed. As shown in FIG. 90B, the protective devices 62001 are shown attached on the inner surface of the cover 62044 by binding or gluing. However, in the areas 62044A-62044E, the protective devices 62001 can also be attached on the outer surface of the cover 62044, or embedded in the cover 62044. Furthermore, the protective devices 62001 as shown in FIG. 90B are configured as a double-layer structure comprising a first layer 62001A and a second layer 62001B. The protective devices 62001 are made of selected combinations of energy-absorbing or impact-absorbing materials as described above, such that the second layer 62001B (i.e., facing or proximate to the accommodation space) facing and proximate to the animals in the crate portion (not shown) is relatively soft compared to the first layer 62001A for providing a comfortable experience for the animals. As an alternative, the protective devices can be formed to have a shape or configuration corresponding to the cover 62044 of the ceiling portion 62040. For example, the protective devices can have a single-piece structure fully corresponding to the contour of the ceiling portion 62040, such that the protective devices can be fully attached on the inner and / or outer surface of the cover 62044, or embedded in the cover 62044, e.g., by binding or gluing. Preferably, the protective devices are formed to have a two-piece structure, each piece corresponding to half of the ceiling portion 62040, such that the protective devices are foldable with the folding of the ceiling portion.The canopy portion 62140 also has a similar structure and configuration as the canopy portions described above, including a U-shaped frame 62142 connected to the box portion 62102 by respective pivots 62148, and four support poles 62146 for supporting a cover 62144. Similar to the canopy portion 6174, the cover 62144 of the canopy portion 62140 is divided into five regions 62144A to 62144E (i.e., 62144A, 62144B, 62144C, 62144D, 62144E). In this embodiment, some of the regions 62144A to 62144E of the cover 62144 are made of a mesh fabric (i.e., a “net fabric”) to enhance air circulation inside and outside the carrier 62100. The mesh fabric also allows a user (e.g., an animal owner) to observe the animal, i.e., forms an “observation zone”, to check the animal or its status in the carrier. In other embodiments, these regions can also be made of a transparent material (e.g., a plastic film), and optionally provided with a breathable structure. It is worth noting that a fabric with a relatively small mesh size is always able to provide a relatively high strength compared to a fabric with a relatively large mesh size. In view of this, the mesh size of the fabric can be selected according to the actual application, and optionally, different regions of the cover 62144 can be made of mesh fabrics with different mesh sizes. According to experience, when encountering a collision or being hit by an external object or vehicle, the animal in the carrier will move in a certain direction due to inertia and hit. Therefore, in this disclosure, it is preferred to arrange a fabric with a relatively small mesh size and therefore a relatively high strength in the region of the cover facing this direction, so as to provide better protection to the animal when it flies (moves / impacts) towards the fabric during the collision or impact. In the embodiment shown in FIG. 91, the left half of the cover 62144 is made of a mesh fabric, and the region 62144D between the second region upwards from the U-shaped frame 62142, i.e., the region 62144E and the region 62144C, is made of a fabric with a relatively small mesh size to have a relatively high strength to support the animal carried in the carrier, so as to protect the animal in a relatively safe manner. According to experience, in the embodiment shown in FIG. 91, an external impact or side collision will bring an impact force to the carrier, causing the animal carried in the carrier to move in the direction of the region 62144D. Therefore, when the animal “flies (moves / impacts)” towards this region, the arrangement of the fabric with a relatively small mesh size can protect the animal in the carrier from injury.As shown in FIG. 92, the carrier 62200 includes a box portion 62202 having a buckle assembly 62210, a roof portion 62240 detachably attached to the box portion 62202, carrying handles 62206 pivotably and detachably connected to opposite sides of the box portion 62202 by pivots 62262, and a cradle assembly 62208 connected to the outer bottom of the box portion 62202, which are similar to those of the carriers described above. The roof portion 62240 also has a structure and configuration similar to those of the roof portions described above, including a U-shaped frame 62242 connected to the box portion 62202 by respective pivots 62248, and four support rods 62246 for supporting a cover 62244. Similar to the roof portion 6174, the cover 62244 of the roof portion 62240 is divided into five regions 62244A to 62244E (i.e., 62244A > 62244B, 62244C, 62244D, 62244E). Similarly, some of the regions 62244A to 62244E of the cover 62244 are made of mesh fabric to enhance air circulation inside and outside the carrier 62200, and different regions of the cover 62244 can be made of mesh fabric of different mesh sizes. As shown in FIG. 92, at least the regions 62244B to 62244E are made of mesh fabric. The region 62244D between the region 62244E and the region 62244C is made of fabric of a relatively small mesh size. According to experience, in the embodiment shown in FIG. 92, an external impact or a side impact will give the carrier an impact force, causing the animal carried in the carrier to move in the direction of the region 62244D. Therefore, when the animal “flies (moves / impacts)” in the direction of this region, the placement of fabric of a relatively small mesh size in such a region can protect the animal in the carrier from injury. In addition, the region 62244B can be covered with a cloth 62244, which can also be an example of a “protective cover”, which, when uncovered, exposes the interior of the box portion 62202, thereby allowing the user or the animal owner to check the status of the animal therein. As shown in FIG. 93, the carrier 62300 includes a box portion 62302 having a buckle assembly 62310, a roof portion 62340 detachably attached to the box portion 62302, carrying handles 62306 pivotably and detachably connected to opposite sides of the box portion 62302 by pivots 62362, and a cradle assembly 62308 connected to the outer bottom of the box portion 62302, which are similar to those of the carriers described above.The canopy portion 62340 also has a structure and configuration similar to the canopy portions described above, including a U-shaped frame 62342 connected to the box portion 62302 by respective pivots 62348, and four support rods 62346 for supporting a cover 62344. Like the canopy portion 6174, the cover 62344 of the canopy portion 62340 is divided into five regions 62344A to 62344E (i.e., 62344A, 62344B, 62344C, 62344D, 62344E). Similarly, some of the regions 62344A to 62344E of the cover 62344 are made of mesh fabric to enhance air circulation inside and outside the carrier 62300, and different regions of the cover 62344 can be made of mesh fabric of different mesh sizes. As shown in FIG. 93, at least regions 62344B to 62344E are made of mesh fabric. In this embodiment, regions 62344D sandwiched by regions 62344E and 62344C and regions 62344B sandwiched by regions 62344A and 62344C are made of the same fabric of a relatively smaller mesh size. In this way, in the embodiment shown in FIG. 93, the animal in the carrier can be protected when the animal “flies (moves / impacts) ” toward both regions 62344B and 62344D. In addition, region 62344B can be covered with cloth 62344’ that can be uncovered to expose the interior of the box portion 62302, thereby allowing the user or the animal owner to check the status of the animal therein. The protective arrangement can be attached to the carrier at the side corresponding to one of the long sides in addition to being attached to the carrier at the side corresponding to one of the short sides, as shown in the embodiments of FIGS. 85A-85C and 86A-86C, respectively. The fourth aspect of the present disclosure also provides a carrier and an anti-collision material arranged on the carrier, the specific structures of which will be described below in conjunction with the drawings. The “anti-collision material” of the present aspect can also be referred to as “anti-collision body” or “protective block (structure) ”, and can be considered as an example of “protective arrangement”. Referring to FIG. 94, a box body 7110 of a carrier according to a first embodiment of the fourth aspect of the present disclosure is schematically shown. As shown in FIG. 94, the carrier of the first embodiment of the present aspect includes a box body 7110, which includes a body 7111 and a bottom support 7112, wherein the body 7111 constitutes four sides and a top of the box body 7110, and the bottom support 7112 constitutes a bottom of the box body 7110.In an example, the body 7111 is detachably connected to the bottom support 7112, and more particularly, is cupped over the bottom support 7112 to form an accommodation space with the bottom support 7112 for carrying a pet. The body 7111 can include a first support and a second support. In the present embodiment, the first support can be a side support 71111, the second support can be an upper support 71112, and the side support 71111 and the upper support 71112 can be at least partially detachably connected to each other by at least one connecting assembly. The connecting assembly can include mating structures respectively provided on the side support 71111 and the upper support 71112, for example, can have mutually mating zipper structures, snap structures, slide buckle structures, magic tapes, hook-and-loop structures, etc., and optionally, a flexible connecting structure. In an example, the side support 71111 can include a first sub-support 71111a and a second sub-support 71111b, the first sub-support 71111a and the second sub-support 71111b are respectively provided on both sides of the upper support 71112 (for example, symmetrically arranged with respect to the upper support 71112), and at least a portion of the first sub-support 71111a and at least a portion of the second sub-support 71111b can be detachably connected to the upper support 71112 by the connecting assembly, respectively. The first sub-support 71111a and the second sub-support 71111b of the side support 71111 form two side surfaces of the body 7111, and the upper support 71112 forms a top surface and at least a portion of the other two side surfaces of the body 7111. Optionally, the first sub-support 71111a and the second sub-support 71111b can be connected as a whole by a connecting piece 71111c. For example, the first sub-support 71111a and the second sub-support 71111b can be formed with the connecting piece 71111c as a whole to constitute the side support 71111. The upper support 71112 can include three sheet-shaped pieces connected to each other, and is arched when connected to the side support 71111. Specifically, the upper support 71112 can include a first sheet-shaped piece 71112a, a second sheet-shaped piece 71112b, and a third sheet-shaped piece 71112c, wherein the first sheet-shaped piece 71112a and the third sheet-shaped piece 71112c respectively constitute a portion of the other two side surfaces of the body 7111, and the second sheet-shaped piece 71112b constitutes a top surface of the body 7111. Optionally, the first sheet-shaped piece 71112a and the third sheet-shaped piece 71112c have a flexible structure (i.e., bendable).In a specific example, the upper support 71112 can have an integrated structure, i.e., the three pieces 71112a, 71112b, 71112c are connected as a whole, for example, by sewing or the like. However, the present disclosure is not limited thereto, and the three pieces can be detachably connected to each other by a flexible connection structure or the like. In addition, as shown in FIG. 94, the top side (i.e., the second piece 71112b) of the upper support 71112 can be provided with a handle 7115, for example, at a central position of the top side, for lifting the pet carrier. In an example, the handle 7115 can be a flexible webbing. Alternatively or additionally, the handle 7115 can also be made of hard plastic. Referring to FIGS. 95 and 96, FIGS. 95 and 96 schematically show another perspective view of the box 7110 shown in FIG. 1, in which at least a portion of the second window cloth 7117a is separated from the body 7111. As shown in FIG. 95, one or more sides of the body 7111 can be provided with a window, for example, a first window 7116 and a second window 7117, for observing the pet inside the box 7110 and / or providing an opening for the pet to enter and exit the box. The first window 7116 and the second window 7117 can be provided with a first closure and a second closure, respectively, so as to close and / or cover the first window 7116 and the second window 7117. In an example, the first closure can be a first window cloth 7116a covering the first window 7116, and the second closure can be a second window cloth 7117a covering the second window 7117. Specifically, in an example, the first window 7116 is provided on the first sub-support 71111a and / or the second sub-support 71111b of the side support 71111 of the body 7111, and is provided with the first window cloth 7116a for covering and shielding the first window 7116. Optionally, the first window cloth 7116a can be fixedly connected to the first window 7116 (e.g., a window frame thereof), i.e., the first window 7116 cannot be opened, but the present disclosure is not limited thereto, and the first window cloth 7116a can also be detachably connected to the first window 7116. For example, the first window cloth 7116a can have a transparent material and / or a breathable material, or specifically, the first window cloth 7116a can have a mesh structure. In addition, the second window 7117 can be provided on the upper support 71112 of the body 7111, for example, at a position of the upper support 71112 on the side of the box 7110, and is provided with the second window cloth 7117a for covering and shielding the second window 7117.Optionally, as shown in FIG. 95, the second window 7117 can extend downwardly from the upper support 71112 (e.g., the third piece 1112c) to the connecting piece 71111c, and further, a portion of the second window 7117 can be located at the connecting piece 71111c of the side support 71111, where a distance is maintained between the lower edge of the second window 7117 and the bottom edge of the body 7111, i.e., at least a portion of the connecting piece 71111c is maintained, so that the bottom edges of both the first sub-support 71111a and the second sub-support 71111b of the side support 71111 remain connected, thereby more facilitating folding and unfolding of the body 7111, and connecting and disconnecting the body 7111 to / from the bottom support 7112. It should be understood that although not shown, the second window 7117 can also be located entirely on the upper support 71112 (i.e., not extending to the connecting piece 71111c), e.g., on the third piece 71112c of the upper support 71112. In an example, as shown in FIG. 95, a second window cloth 7117a is connected to and covers the second window 7117 (e.g., connected at the window frame thereof), and at least a portion of the second window cloth 7117a can be opened relative to the second window 7117. In a preferred embodiment, a portion of the second window cloth 7117a is detachably connected to the second window 7117, and another portion is non-detachably connected to the second window 7117. For example, the upper side of the second window cloth 7117a is fixedly connected to the second window 7117, and the other portion can be detachably connected to the second window 7117, so that the second window cloth 7117a can be folded upwardly to open the second window 7117. In an example, the second window cloth 7117a can have a transparent material or a mesh structure. Optionally or alternatively, the second window cloth 7117a can have different materials or thicknesses, e.g., a portion thereof is made of a transparent material and / or a breathable material (which can have a mesh structure), and the remaining portion can be made of other materials, e.g., the same materials as other portions of the body 7111. Furthermore, the different portions of the second window cloth 7117a having different materials and / or thicknesses can be connected to the body 7111 in different ways, e.g., one portion is detachably connected to the body 7111, and another portion is non-detachably connected to the body 7111. Optionally, the different materials of the second window cloth 7117a can be integrated as one, i.e., the second window cloth 7117a is a single component. For example, as shown in FIGS. 95 and 96, the second window cloth 7117a has a first portion 71171a and a second portion 71172a connected to each other.The first portion 71171a can have a transparent and / or breathable material (e.g., a mesh structure) and cover a portion of the second window 7117. At least a portion of the first portion 71171a can be fixedly (e.g., non-removably) connected to the body 7111. In particular, the first portion 71171a can be located at an upper portion of the second window 7117 near the top surface of the body 7111 and have its upper end fixedly connected to the upper edge of the second window 7117. The second portion 71172a can have a different material and / or thickness than the first portion 71171a, e.g., an opaque material and / or a greater thickness than the first portion 71171a, and be removably connected to the body 7111, in particular to the underside of the first portion 71171a, by a flexible connection structure to cover another portion of the second window 7117. Further, as shown in FIG. 95, the first window cloth 7116a and / or the second window cloth 7117a can be a flexible cloth, e.g., a mesh cloth, a sponge cloth, etc. However, it should be understood that the present disclosure is not limited thereto and the first window cloth 7116a and / or the second window cloth 7117a can also be other forms of cloth or flexible material, i.e., material that can be bent or folded. In an example, the first window cloth 7116a and / or the second window cloth 7117a can be closed and at least partially opened by a zipper structure (or other flexible and removable connection structure), which can be formed by one zipper or two zippers pulled in opposite directions (as shown in FIG. 4). It should be noted that the windows and / or the closure of the present disclosure are not limited to the above-described embodiments and the functions and opening / closing manners of the first window 7116 and the second window 7117 can be consistent or interchangeable and the functions, materials, and connection manners to the corresponding windows of the first window cloth 7116a and the second window cloth 7117a can also be consistent or interchangeable. Furthermore, the crash material can also be provided in the case 7110, e.g., on any side of the body 7111 of the case 7110, i.e., not limited to the sides of the body 7111 but can also include the top surface and / or the bottom surface. When the case 7110 is placed on a vehicle seat, the crash material can be provided at least on the side of the body 7111 near the door to further improve the safety of the pet in the case 7110. However, the present disclosure is not limited thereto and the crash material can also be provided on each side of the body 7111 or on the side of the body 7111 near the door and the opposite side and have a certain thickness. In particular, the crash material can be a cushion.The cushioning body can be configured as a separate component, for example, it can be a separately formed cushioning block, then a seat cloth bag is wrapped around the cushioning block, and it is sewn in the seat cloth bag, and is fixed on the seat cloth (i.e. the seat cloth of the covering body 7111, not shown in the figure) on any side of the box body 7110 (for example, the side close to the door and optionally the opposite side) by sewing (fixed connection) or Velcro or snap fastener (detachable connection) and the like. For example, corresponding Velcro or snap fastener is arranged on the cloth bag covering the cushioning block and on any side of the box body 7110 (specifically, the seat cloth covering the box body 7110), so as to set the cushioning body as needed, which helps to control the cost of the carrier, and facilitates cleaning and maintenance. That is, the cushioning body can be provided only one, for example, on the side of the box body 7110 close to the door; or multiple, for example, on the side of the box body 7110 close to the door and the opposite side, or on each side of the box body 7110. Specifically, the cushioning body is made of flexible material, for example, it can be made of foam or plastic or elastomer, wherein the foam can be inert memory foam or EPP or EPS or EPE and combinations thereof, or a combination of foaming material and PE plate and the like, and the thickness can be between 720mm and 760mm, preferably 740mm, but the present disclosure is not limited thereto; the plastic can be PC / PP / ABS plastic block and the like; and the elastomer can be silicone or spring or spring sheet and the like, but the present disclosure is not limited thereto. Such a cushioning body not only provides good cushioning effect, but also facilitates subsequent production and assembly, and can reduce production cost. Alternatively or additionally, the anti-collision material can be configured as a filling material filled in the seat cloth. In an example, at least a part of the anti-collision material is detachably connected to the box body 7110. In a specific embodiment, as shown in FIG. 96, the anti-collision material can be arranged at the second window cloth 7117a (for example, the second part 71172a thereof), that is, at least partially detachably connected to the box body 7110 along with the second window cloth 7117a. Alternatively or additionally, the anti-collision material can be configured as a filling material filled in the second part 71172a of the second window cloth 7117a, but the present disclosure is not limited thereto, and the two can also be separate structures and joined together. Referring to FIG. 97, FIG. 97 schematically shows a perspective view of a carrier mounted on a vehicle seat according to an embodiment of the fourth aspect of the present disclosure. For ease of description, the installation process of the carrier and the vehicle seat is described below taking the box body 7110 as an example. However, it should be clear that the process can also be applied to the carriers of the embodiments of the first aspect to the third aspect without structural conflicts.As shown in FIG. 97, the carrier's case 7110 can be secured to the vehicle by using a securing strap assembly 7300. When it is desired to secure the carrier to the vehicle seat, as shown in the assembly view of FIG. 15, after the carrier's case 7110 is placed on the vehicle seat, one end of the securing strap assembly 7300 is connected to a corresponding interface (e.g., a Top Tether interface) of the vehicle seat via a connector, while the other end of the securing strap assembly 7300 is sequentially threaded through a handle 7115 provided on the top side of the case 7110, looped around the front side of the case 7110, and connected to another corresponding interface (e.g., an ISOFIX interface) of the vehicle seat via the bottom of the case 7110, thereby further limiting the lateral sliding, tilting, etc. of the carrier's case 7110 to more securely secure the carrier. It should be understood that the securing strap assembly 7300 can also not be threaded through the handle, or in the case where no handle is provided, other means (e.g., a strap guide mechanism) can also be provided on the carrier to limit the lateral movement of the securing strap assembly, but the present disclosure will not be elaborated here. The fourth aspect second embodiment of the present disclosure also provides a carrier. Referring to FIG. 98 and FIG. 99, FIG. 98 shows a case 7210 of a carrier according to the fourth aspect second embodiment of the present disclosure, and FIG. 99 shows another perspective view of the case 7210 shown in FIG. 98, wherein a window 7217 on one side of the case 7210 is in an open state. As shown in FIG. 98, similar to the case 7110 in the aforementioned embodiments, the case 7210 of the carrier of the present embodiment comprises a main body 7211 and a bottom support 7212. The main body 7211 constitutes four sides and a top of the case 7210, the bottom support 7212 constitutes the bottom of the case 7210, and the main body 7211 is detachably connected and covers the bottom support 7212 to form a containing space for carrying a pet with the bottom support 7212. Specifically, as shown in FIG. 98, the main body 7211 comprises first and second supports, e.g., a side support 72111 and an upper support 72112, wherein the side support 72111 comprises first and second sub-supports 72111a and 72111b, respectively constituting two opposite sides of the main body 7211. The upper support 72112 comprises first, second, and third sheet-like members 72112a, 72112b, and 72112c connected together, the second sheet-like member 72112b constituting a top of the main body 7211, while the first and third sheet-like members 72112a and 72112c respectively constituting at least a portion of the other two opposite sides.In an example, the side support 72111 and the upper support 72112 can be at least partially detachably connected to each other by at least one connecting assembly. For example, a portion of the first sub-support 72111a and a portion of the second sub-support 72111b of the side support 72111 can be fixedly (e.g., non-detachably) connected to the two sides of the upper support 72112, respectively, while another portion of each can be detachably connected to the upper support 72112 by a second connecting assembly, respectively. Specifically, each second connecting assembly can include a third connecting piece 72118 and a fourth connecting piece 72119 detachably connected to each other, wherein the third connecting piece 72118 is disposed on a side edge of the upper support 72112 and extends along a portion of the side edge, and the fourth connecting piece 72119 is disposed at a corresponding position of a top edge of the side support 72111 (i.e., the first sub-support 72111a or the second sub-support 72111b). Optionally, the third connecting pieces 72118 disposed on the two side edges of the upper support 72112 are symmetrically disposed, i.e., the two second connecting assemblies are symmetrically disposed relative to the box body 7210. Although not shown, in other examples, the side support 72111 and the upper support 72112 can also be completely separated from each other by the connecting assembly, which is not specifically described herein. In addition, a window can be provided on one or more side surfaces of the body 7211 for observing the pet inside the box body 7210 and / or providing an opening for the pet to enter and exit the box body. In an example, as shown in FIG. 98, a first window 7216 can be provided on the side support 72111 of the body 7211. For example, the first window 7216 can be provided on the first sub-support 72111a and / or the second sub-support 72111b of the side support 72111, corresponding to the front side and / or the rear side of the box body 7210 when placed in a vehicle, and is configured to be covered by a first closure (e.g., a first window cloth 7216a). Optionally, the first window cloth 7216a can be fixedly connected to the first window 7216, or detachably connected to the first window 7216. The first window cloth 7216a can have a transparent material and / or a breathable material, such as a breathable mesh cloth, so that the air inside and outside the box body 7210 flows, and the user can observe the internal situation of the box body 7210. In an optional or alternative example, as shown in FIG. 98, a second window 7217 can be provided at a position of the upper support 72112 located on the side of the box body 7210, and the second window 7217 is configured to be covered by a second closure, for example, the second closure can include a second window cloth and / or a side door 7217b.At least a portion of the second closure member is detachably connected to the body 7211. In an example, a portion of the second closure member can be fixedly connected to the body 7211, for example, at least a portion of one side of the window frame of the second window 7217, and the other portion can be detachably connected to the second window 7217 by a flexible detachable connection structure (for example, a zipper structure), so that the second closure member can be opened laterally with respect to the second window 7217 (see FIG. 99). The second closure member can have a transparent material and / or a breathable material, a light-blocking material, or the same material as other portions of the body 7211 (for example, seat cloth), and the second closure member can have a flexible material or a hard material. In the present embodiment, the flexible detachable connection structure can be a zipper structure. Specifically, as shown in FIG. 98, the zipper structure can be composed of one zipper extending along a portion of the outer periphery of the window 7217 (i.e., the zipper structure has a single zipper head), but the present disclosure is not limited thereto, and the zipper structure can also be composed of two zippers pulled in opposite directions (i.e., the zipper structure has a double zipper head) as needed. Specifically, only one second window 7217 can be provided, for example, on one side (such as the left side or the right side) of the body 7211, and provided with a second closure member for shielding or closing the second window 7217. The second closure member can be a second window cloth (such as having a breathable material or a mesh material) or a side door. Alternatively or additionally, two second windows 7217 can be provided, respectively on opposite sides (i.e., the left side and the right side) of the body 7211. Correspondingly, the two second windows 7217 can be respectively provided with corresponding second closure members, and the two second closure members can have the same material or different materials. For example, one of the second closure members can be a second window cloth, for example, using a breathable mesh cloth, and the other closure member can be a side door 7217b, which can be used for pet access to the box, etc. When the box 7210 is placed on the seat of the vehicle, the side door 7217b can be located on the side close to the vehicle door. The side door 7217b can be covered with the same material as the seat cloth of the body 7211. It should be noted that the present disclosure is not limited to the above embodiment, and the positions of the second closure members on the two sides of the body 7211 can be interchanged and can have the same material. Furthermore, an anti-collision material can also be provided in the box 7210. The anti-collision material can have a certain thickness, and can be provided on any side of the body 7211 of the box 7210, so as to improve the safety of the pet in the box 7210.In a specific example, as shown in FIGS. 98 and 99, the anti-collision material can be arranged in the side door 7217b, but the present disclosure is not limited thereto, and the anti-collision material can also be arranged on each side of the body 7211, or on two opposite sides of the body 7211 (for example, one side close to the vehicle door and its opposite side). Specifically, the anti-collision material can be a buffer body, and the buffer body can adopt a foamed body and / or a plastic body and / or an elastic body, and the specific material can be similar to the aforementioned embodiments, and thus will not be described again. In addition, the buffer body can be configured as a separately formed buffer block, which is then covered and fixed (for example, sewn) in a seat cloth at the side door 7217b, or sewn in a seat cloth bag and detachably fixed at the side door 7217b by means of a hook and loop fastener or a snap fastener, etc. By arranging such an anti-collision material, when the vehicle is in an accidental collision, especially when the side surface is impacted, a better buffering effect can be provided for the pet in the box body, thereby better protecting the pet. It should be noted that the "front", "rear", "left" and "right" referred to in the above embodiments of the present aspect refer to the directions of the box body 7110, 7210 when placed on a vehicle seat or other moving device, for example, "front" refers to the forward direction of the vehicle or the moving device, etc., but the present disclosure is not limited thereto. It should also be noted that, in the case of no structural conflict, the various embodiments of each aspect of the present disclosure can be used in any combination or cross. One aspect of the present disclosure provides a carrier, comprising: a containing body having a top opening; a top cover assembly arranged on the containing body and having a deployed state for closing the top opening; and a protective cover connected with the containing body and / or the top cover assembly, the protective cover being used to cover at least a part of the area of the top cover assembly when the top cover assembly is in the deployed state. Further, the carrier further comprises at least one first connecting piece arranged on the containing body and / or the top cover assembly; the protective cover comprises a cover body and at least one second connecting piece, wherein the at least one second connecting piece is connected with the at least one first connecting piece, so that the cover body covers at least a part of the area of the top cover assembly. In an embodiment, the at least one second connecting piece is detachably connected with the at least one first connecting piece, and / or the cover body is transversely covered on the top cover assembly. In an embodiment, the cover body is provided with an anti-collision body, and the anti-collision body corresponds to at least a transverse middle region of the cover body.In an embodiment, the left and right sides of the accommodating body are respectively provided with the at least one first connecting member, the two ends of the cover body correspond to the left and right sides of the accommodating body, and the two ends of the cover body are respectively provided with the at least one second connecting member; and when the at least one first connecting member is connected with the at least one second connecting member, the cover body covers the front or rear part of the ceiling assembly. In an embodiment, the left and right sides of the accommodating body are respectively provided with at least two first connecting members, the at least one second connecting member is selectively connected with the at least two first connecting members; and / or, the cover body has a shape of being narrow at the two ends and wide in the middle. In an embodiment, the ceiling assembly comprises a plurality of U-shaped supports and a ceiling connected with the plurality of U-shaped supports, the ceiling comprises a shielding area and an observation area; and when the ceiling assembly is in an unfolded state, the observation area is located at the front and / or rear part of the ceiling assembly, and the cover body covers at least a part of the observation area. In an embodiment, the shielding area is made of a light-proof fabric, the observation area is made of a mesh fabric or a transparent material; and / or, the ceiling is provided with a handle. In an embodiment, the bottom of the ceiling assembly is detachably connected with the top of the accommodating body through a ceiling locking device; and / or, the ceiling is provided with a ceiling opening, the ceiling opening is provided with a sealing member, the sealing member allows the ceiling opening to be closed or opened; when the sealing member opens the ceiling opening, at least part of the ceiling can be folded to make the ceiling opening wider. In an embodiment, the shapes of the surfaces of the cover body and the ceiling that contact with each other are matched, and / or, the cover body is provided with at least one turning part corresponding to the position of the at least one U-shaped support. In an embodiment, a connecting structure is arranged between the upper edge of the cover body and the ceiling assembly. In an embodiment, the carrier comprises a pet basket. In an embodiment, the protective cover comprises a cover body, the cover body covers at least a part of the ceiling assembly; and the cover body comprises at least one material layer. In another aspect, the application also provides a carrier, comprising an accommodating body and a ceiling assembly; the accommodating body has a top opening, the ceiling assembly is mounted on the accommodating body and has an unfolded state of closing the top opening; and the accommodating body and / or the ceiling assembly is provided with a side impact protection structure. In an embodiment, the side impact protection structure comprises at least one side impact protection block, and when the side impact protection structure is in a use state, the side impact protection block corresponds to the side of the accommodating body.In an embodiment, the roof assembly is detachably buckled at the top opening of the accommodating body; the accommodating body is respectively provided with a fifth connecting member at the front side and the rear side, and the front part and the rear part of the roof assembly are respectively provided with a matching connecting member; when the roof assembly is in the unfolded state, each fifth connecting member is detachably connected with the corresponding matching connecting member, so that the roof assembly is kept in the unfolded state. In an embodiment, the roof assembly comprises a plurality of U-shaped supports and a roof connected with the plurality of U-shaped supports; the plurality of U-shaped supports comprise two roof frames fixed at the periphery of the roof, and the ends opposite to each other of the two roof frames are respectively pivotally connected with a roof locking device; the roof locking device is detachably connected with the left and right sides of the accommodating body; when the roof assembly is in the unfolded state, the two roof frames are buckled at the top opening of the accommodating body. In an embodiment, the side impact protection block is attached to the fifth connecting member, or is integrally formed with the fifth connecting member, or is directly formed by the fifth connecting member; or, the side impact protection block is attached to the matching connecting member, or is integrally formed with the matching connecting member, or is directly formed by the matching connecting member. In an embodiment, the accommodating body comprises a box body and a support device, and the support device defines a space for accommodating the box body; the support device comprises a first support and a third support arranged in parallel, and a second support connecting the first support and the third support; the first support is adjacent to the top opening, and the third support is located below the first support; and when the side impact protection structure is in the use state, the position of the side impact protection block corresponds to the first support. In an embodiment, the accommodating body comprises a box body and a support device, and the support device defines a space for accommodating the box body; the support device comprises a first support and a third support arranged in parallel, and a second support connecting the first support and the third support; the first support is adjacent to the top opening, and the third support is located below the first support; the second support comprises a vertical segment corresponding to the side of the box body; and when the side impact protection structure is in the use state, the position of the side impact protection block corresponds to the vertical segment. In an embodiment, the accommodating body comprises a box body and a seat cloth covering the outer surface of the box body; when the side impact protection structure is in the use state, the at least one side impact protection block corresponds to the front side and / or the rear side of the accommodating body, and each side impact protection block is located outside the seat cloth; and the front side and / or the rear side of the seat cloth is provided with at least one storage bag, and each storage bag is used for accommodating at least part of the corresponding side impact protection block.In an embodiment, when the roof assembly is in the unfolded state, the roof assembly is detachably buckled at the top opening of the accommodating body; the front and rear sides of the accommodating body are respectively provided with a fifth connecting member and the storage bag, the fifth connecting member is located in the corresponding storage bag; the front and rear parts of the roof assembly are respectively provided with a matching connecting member, the matching connecting member is connected with the roof assembly through a connecting belt, the side impact protection block is attached to the matching connecting member or is integrally formed with the matching connecting member or is directly formed by the matching connecting member; the fifth connecting member and the corresponding matching connecting member are detachably connected, so that the roof assembly is kept in the unfolded state and the side impact protection structure is in the use state. In an embodiment, the accommodating body comprises a box body and a seat cloth covering the outer surface of the box body; the front and / or rear side of the seat cloth is provided with a containing bag; the side impact protection block is covered in the containing bag. In an embodiment, the periphery of the containing bag is sewn on the seat cloth; or the containing bag has a bag opening, and a sealing member is arranged at the bag opening; or the containing bag is detachably connected with the seat cloth through the sealing member. In an embodiment, the accommodating body comprises a box body; the side impact protection structure comprises: a side impact protection block arranged on the outer side of the peripheral wall of the box body; the side impact protection block is integrally formed with the box body or attached together; and / or a buffer block arranged on the inner side of the peripheral wall of the box body, the buffer block is integrally formed with the box body or attached together. In an embodiment, the roof assembly comprises a plurality of U-shaped supports and a roof connected with the plurality of U-shaped supports; the side impact protection structure comprises a side impact protection block connected to the front and / or rear part of the roof; when the roof assembly is in the unfolded state, the shape of the surface of the side impact protection block and the roof that contact with each other is matched. In an embodiment, the side impact protection block comprises an integrally formed sheet; the sheet is made of foaming material, and / or the sheet comprises a bending part corresponding to the U-shaped support. In an embodiment, the carrier further comprises: a protective cover connected with the accommodating body and / or the roof assembly, the protective cover is used for covering at least a part of the area of the roof assembly when the roof assembly is in the unfolded state. In another aspect, the application provides an accommodating body of a carrier, the accommodating body comprises a box body, and the side part of the box body is provided with a side impact protection structure. In an embodiment, the side impact protection structure comprises: a side impact protection block arranged on the outer side of the peripheral wall of the box body; the side impact protection block is integrally formed with the box body or attached together; and / or a buffer block arranged on the inner side of the peripheral wall of the box body, the buffer block is integrally formed with the box body or attached together.In an embodiment, the accommodating body further comprises a seat cloth covering the outer surface of the box body; the front side and / or the rear side of the seat cloth is provided with a receiving pocket; the side impact protection structure comprises a side impact protection block covered in the receiving pocket. In an embodiment, the periphery of the receiving pocket is sewn to the seat cloth; or the receiving pocket has a pocket opening provided with a sealing member; or the receiving pocket is detachably connected to the seat cloth by a sealing member. In another aspect, the application provides a roof assembly for a vehicle, comprising a plurality of U-shaped supports and a roof connected to the plurality of U-shaped supports; the side impact protection structure comprises a side impact protection block connected to the front and / or rear of the roof; and when the roof assembly is in an unfolded state, the surfaces of the side impact protection block and the roof that contact each other are matched in shape. In an embodiment, the side impact protection block comprises an integrally formed sheet; the sheet is made of a foamed material, and / or the sheet comprises a bending portion corresponding to the U-shaped support. In another aspect, the application provides a roof assembly for a vehicle, comprising a plurality of U-shaped supports and a roof connected to the plurality of U-shaped supports; the front and rear of the roof assembly are respectively provided with a mating connector, each of the mating connectors is connected to the roof by a connecting belt, and the mating connector is provided with a side impact protection block. In another aspect, the application provides a protective cover for covering at least a part of a region of a roof assembly of a vehicle, comprising a horizontally extending cover body and a second connector connected to the cover body, the cover body comprising an outer fabric layer and an inner fabric layer, the outer fabric layer and the inner fabric layer defining at least one receiving space, and at least one impact protection body is arranged in the at least one receiving space. In an embodiment, at least one of the impact protection bodies has a middle impact protection portion corresponding to a horizontally middle region of the cover body, and the middle impact protection portion has a multi-layer structure. In an embodiment, the multi-layer structure comprises a plurality of sheets stacked together, and the plurality of sheets comprise at least one hard sheet and at least one soft sheet. In an embodiment, at least one of the impact protection bodies comprises a plurality of sheets stacked together, and the plurality of sheets comprise at least one hard sheet and at least one soft sheet. In an embodiment, the hard sheet has a shape with narrow ends and a wide middle portion, and the two ends of the hard sheet are respectively provided with notches extending towards the middle portion of the hard sheet.In an embodiment, the at least one anti-collision body comprises a plurality of sheets stacked together, wherein at least one spacing layer is arranged in the receiving space for receiving the plurality of sheets, the at least one spacing layer divides the receiving space into at least two layered spaces, and the plurality of sheets are arranged in the at least two layered spaces. In an embodiment, the outer fabric layer and the inner fabric layer define at least two receiving spaces arranged in sequence along the longitudinal direction, and each receiving space extends along the transverse direction; each receiving space is provided with the anti-collision body, and a transverse middle region of the anti-collision body in at least one receiving space has a multi-layer structure. In another aspect, the present application provides a vehicle comprising a containing body, a roof assembly, and the protective cover described above, the protective cover is connected to the containing body and / or the roof assembly through the second connecting member; the protective cover is used to cover at least a part of the roof assembly when the roof assembly is in the unfolded state. In another aspect, the present application provides a vehicle comprising a containing body and a roof assembly; the containing body has a top opening, and the roof assembly is installed on the containing body and has an unfolded state for closing the top opening; the front and rear sides of the containing body are respectively provided with a fifth connecting member, and the front and rear parts of the roof assembly are respectively connected with a matching connecting member through a connecting belt; when the roof assembly is in the unfolded state, each fifth connecting member is detachably connected with the corresponding matching connecting member, so that the roof assembly is kept in the unfolded state. In an embodiment, the matching connecting member is connected with the roof of the roof assembly through the connecting belt; the fifth connecting member has a protruding part extending away from the box of the containing body. In an embodiment, the containing body comprises a box and a seat cloth covering the outer surface of the box; the fifth connecting member is connected with the seat cloth, and a hard protective sheet is arranged between the seat cloth and the box, the protective sheet corresponds to the fifth connecting member. In an embodiment, the protective sheet is fixed on a gasket, and the gasket is connected with the seat cloth. In an embodiment, the outer surface of the peripheral wall of the box is provided with a buffer block corresponding to the fifth connecting member. One aspect of the present disclosure provides a travel device with improved impact resistance. The travel device includes a vehicle and a protective device attached to the vehicle at the side or top surface of the vehicle. According to the present disclosure, the protective device is made of energy-absorbing material or impact-absorbing material. According to the present disclosure, the protective device can prevent the animal confined therein from being impacted or injured by a side collision, which can be caused by the impact of an external object in an accident or the sudden change of speed or direction of the vehicle during travel.In an embodiment, the protection device can be attached to the carrier at a top surface of the carrier by a securing strap. Another aspect of the present disclosure provides a carrier for confining an animal therein. The carrier includes a box portion defining an accommodation space for the animal, a roof portion detachably attached to the box portion, a carrying handle pivotably and detachably connected to the box portion, and a protection device attached to the roof portion. The protection device can prevent the animal confined therein from being impacted or injured by a side impact, which can be caused by a collision with an external object in an accident or a sudden change in speed or direction of the vehicle while driving. In an embodiment, the protection device is made of an energy-absorbing material or an impact-absorbing material. In an embodiment, the roof portion includes a cover and a plurality of support rods connected to and supporting the cover. In an embodiment, the cover is formed to have a plurality of regions divided by the support rods. In an embodiment, some of the regions are made of a mesh fabric of a corresponding mesh size or embedded with the protection device. In an embodiment, the protection device can be formed as a plate or sheet made of the energy-absorbing material or the impact-absorbing material described above and can be attached to the roof portion on an inner surface or an outer surface of the cover of the roof portion. The present disclosure also provides a carrier. The carrier includes a box body including a main body connected to and covering a bottom support to form an accommodation space for carrying a pet with the bottom support, wherein one or more sides of the main body are provided with an impact-resistant material. In an embodiment, when the box body is placed on a seat of a vehicle, the impact-resistant material is provided at least on a side of the main body close to a door. In an embodiment, one or more sides of the main body are provided with a window, and the window is provided with a closure member closing and / or shielding the window. In an embodiment, the impact-resistant material is provided on at least one of the closure members. In an embodiment, the impact-resistant material is integrally formed with the closure member. In an embodiment, the impact-resistant material is separately formed and fixedly connected to the closure member. In an embodiment, at least one of the closure members has a first part and a second part connected to each other, at least a part of the first part is non-detachably connected to the main body and covers a part of the window, and the second part is detachably connected to the main body and covers another part of the window. In an embodiment, the impact-resistant material is provided on the second part of at least one of the closure members. In an embodiment, the impact-resistant material is configured as a filler material filled in the closure member. It should be noted that the illustrations and descriptions of the examples and embodiments shown in the figures are for example purposes only and should not be interpreted as limitations of the present disclosure. Those skilled in the art will understand that various embodiments are contemplated by the present disclosure.It should be understood that the concepts described in the foregoing examples and embodiments can be used alone or in combination with any other examples and embodiments described above. It should also be understood that various alternative examples and embodiments described above in relation to one illustrated embodiment can be applicable to all examples and embodiments described herein, unless otherwise specified. Conditional language used herein, such as, among others, “can,” “could,” “might,” “may,” “e.g.,” and “for instance,” unless specifically stated otherwise, or otherwise understood within the context as used by those of ordinary skill in the art, is intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements and / or steps. Thus, such conditional language is not generally intended to imply that one or more embodiments are required to include a feature, element and / or step. Or groups of features, elements and / or steps. The terms “comprising,” “including,” and “having” and other similar forms are used synonymously and are used in an open-ended fashion to mean that additional elements, features, acts, and / or steps can be included. Furthermore, the terms “another” and “one or more” are used interchangeably, and are used in an open-ended fashion to mean one or more than one. Although certain examples have been described, these examples are not intended to limit the scope of the inventions disclosed herein. Therefore, the preceding description is not meant to imply any particular feature, characteristic, step, module, or block is necessary or indispensable. In fact, the new methods and systems described herein can be embodied in a variety of other forms; furthermore, various omissions, substitutions and changes in the form of the methods and systems described herein can be made without departing from the spirit of the inventions disclosed herein. The claims and their equivalents are intended to cover such forms or modifications as would fall within the scope and spirit of certain of the inventions disclosed herein. It should be understood that references herein to “one” or “an” element or feature of aspects such as, for example, a component or step do not exclude additional elements or features. For example, a device having, including, comprising, or comprising one element does not exclude the device also having, including, comprising, or comprising more than one of that element. Similarly, reference herein to “one” of a plurality of elements does not exclude the possibility that the invention includes more than one of that element. For example, a device having, including, comprising, or comprising one of two elements does not exclude the device also having, including, comprising, or comprising both of the two elements.

[0016] Provided in the various embodiments of the present disclosure are the following schemes and items: Item 1: A carrier, characterized in that the carrier comprises a box body, the box body comprising a body and a bottom support, the body being connected to the bottom support to form a containing space with the bottom support, wherein a window is arranged on a side surface and / or a top surface of the body, and the window is provided with a sealing member for closing and / or shielding the window, and a protection device is arranged on the sealing member. Item 2: The carrier according to item 1, characterized in that at least a part of the protection device is detachably connected to the box body; and / or when the box body is placed on a seat of a vehicle, the protection device is arranged at least on a side of the body close to a door. Item 3: The carrier according to item 1, characterized in that the sealing member has a first part and a second part connected to each other, at least a part of the first part is non-detachably connected to the body and covers a part of the window, the second part is detachably connected to the body and covers another part of the window, and the protection device is arranged on the second part of the sealing member. Item 4: The carrier according to any one of items 1 to 3, characterized in that the protection device is integrally formed with the sealing member; and / or the protection device is a separately formed structure and is fixedly connected to the sealing member; and / or the protection device is configured as a filling material filled in the sealing member; and / or the protection device has a certain thickness and is configured as a buffer body having a foamed body and / or a plastic body and / or an elastic body. Item 5: A carrier, characterized in that the carrier comprises a box body having a peripheral wall and a bottom, the peripheral wall and the bottom defining a containing space and a top opening, wherein a protection device is arranged on the peripheral wall of the box body, the protection device comprising a buffer block, the buffer block being arranged at least on any inner side of the peripheral wall of the box body in a longitudinal direction. Item 6: The carrier according to item 5, characterized in that a groove structure is arranged on the inner side of the peripheral wall of the box body, the buffer block is installed in the groove structure and protrudes from the inner side of the peripheral wall. Item 7: The carrier according to item 5 or 6, characterized in that a first side of the buffer block is fixedly attached to the box body, and a second side opposite to the first side is provided with a hard sheet; and / or the buffer block has a hole structure. Item 8: The carrier according to item 5, characterized in that the protection device further comprises a side impact protection block, the side impact protection block being arranged at least on any outer side of the peripheral wall in the longitudinal direction.Item 9: The carrier according to item 8, characterized in that a seat cloth is wrapped on the outer surface of the box body, a containing bag is arranged on the outer side of the seat cloth, and the side impact protection block is wrapped in the containing bag. Item 10: The carrier according to item 9, characterized in that the periphery of the containing bag is sewn to the seat cloth; or the containing bag has a bag opening, and a sealing member is arranged at the bag opening; or the containing bag is detachably connected to the seat cloth by a sealing member. Item 11: The carrier according to any one of items 8 to 10, characterized in that the protection device comprises a planar side impact contact surface, and a plurality of convex blocks are uniformly arranged on the side impact contact surface. Item 12: The carrier according to item 5, characterized in that the carrier further comprises a roof assembly arranged on the box body or mounted on the box body by a support device, and having a folded state of closing the top opening and an unfolded state of exposing the containing space, fifth connecting members are arranged on both sides of the carrier in the longitudinal direction, cooperating connecting members corresponding to the fifth connecting members are arranged on the roof assembly, the fifth connecting members and the cooperating connecting members are detachably connected to each other, and the protection device comprises a first side impact protection block and / or a second side impact protection block, wherein the first side impact protection block is arranged on the peripheral wall of the box body and corresponds to the fifth connecting member, and / or the second side impact protection block is arranged on the fifth connecting member or directly formed by the fifth connecting member. Item 13: The carrier according to item 12, characterized in that a seat cloth is wrapped on the outer surface of the box body, a protective sheet composed of a hard sheet material is arranged between the seat cloth and the box body, the position of the protective sheet corresponds to the position of the fifth connecting member, and / or the position of the first side impact protection block corresponds to the fifth connecting member and the protective sheet, and / or the fifth connecting member, the protective sheet and the first side impact protection block are sequentially arranged from the outside to the inside on the side wall of the box body. Item 14: The carrier according to item 12 or 13, characterized in that the fifth connecting member comprises a convex part, the cooperating connecting member comprises a concave part arranged corresponding to the convex part, and when the roof assembly is arranged on the box body, the cooperating connecting member and the fifth connecting member are connected, so that the concave part of the cooperating connecting member and the convex part of the fifth connecting member are in concave-convex cooperation.Item 15: The carrier according to any one of items 5-6, 8-10, 12-13, characterized in that the protection device is integrally formed with or attached to the box; and / or the protection device has a material with a resilient shock-absorbing effect; and / or the protection device is configured as a single-layer structure or a multi-layer structure. Item 16: A carrier, characterized in that the carrier comprises: a containing body having a top opening; a roof assembly detachably connected to the containing body to open and close the top opening, the roof assembly having a deployed state in which the top opening is closed; and a protection device provided at least on the roof assembly, wherein the protection device comprises a shield, the shield comprising a shield body and a second connecting member, the shield body being connected to the containing body and / or the roof assembly via the second connecting member so as to cover at least a part of the roof assembly when the roof assembly is in the deployed state. Item 17: The carrier according to item 16, characterized in that the protection device further comprises a crash body, the crash body being provided in a region of the shield body that covers the roof assembly, and optionally, the crash body is provided at least in a transversely intermediate region of the shield body. Item 18: The carrier according to item 16, characterized in that the roof assembly comprises a plurality of U-shaped supports and a roof connected to the plurality of U-shaped supports; the protection device further comprises at least one side impact protection block, the at least one side impact protection block being connected to a front and / or a rear of the roof in a longitudinal direction, the side impact protection block and a surface of the roof that contact each other when the roof assembly is in the deployed state matching in shape. Item 19: The carrier according to item 18, characterized in that the roof of the roof assembly comprises a blind region and a viewing region, the at least one side impact protection block being provided in a region of the blind region away from the viewing region, and / or the at least one side impact protection block being provided in a region of the viewing region away from the blind region. Item 20: The carrier according to item 18 or 19, characterized in that the side impact protection block comprises an integrally formed sheet, the sheet being made of a foamed material, and / or the side impact protection block comprises a sheet portion and a bending portion formed between adjacent two sheet portions, the bending portion corresponding to the U-shaped support. Item 21: The carrier according to item 18, characterized in that the roof is provided with a roof opening, the roof opening being provided with a closure member that allows the roof opening to be closed or opened; at least part of the roof can be folded to enlarge the roof opening when the closure member opens the roof opening.Item 22: The vehicle according to item 16, characterized in that fifth connecting members are arranged on both sides of the accommodating body in the longitudinal direction, and corresponding cooperating connecting members are arranged on the roof assembly, and the fifth connecting members and the corresponding cooperating connecting members are detachably connected to each other, wherein the protection device further comprises side impact protection blocks, and the cooperating connecting members are formed as the side impact protection blocks. Item 23: The vehicle according to item 22, characterized in that the accommodating body comprises a box body and a support device, the support device defines a space for accommodating the box body, the roof assembly comprises a plurality of U-shaped supports and a roof connected with the plurality of U-shaped supports, the cooperating connecting members protrude outward by a first distance Q1 relative to the U-shaped supports, the cooperating connecting members protrude outward by a second distance Q2 relative to the support device, and the cooperating connecting members protrude outward by a third distance Q3 relative to the box body, wherein Q1 < Q2 < Q3. Item 24: The vehicle according to item 16, characterized in that the cover body comprises an outer fabric layer and an inner fabric layer, the outer fabric layer and the inner fabric layer define a receiving space, and an anti-collision body is arranged in the receiving space. Item 25: The vehicle according to item 24, characterized in that the anti-collision body comprises a multi-layer structure formed by a plurality of sheets, and the plurality of sheets comprise at least one hard sheet and / or at least one soft sheet. Item 26: The vehicle according to item 24, characterized in that at least one of the anti-collision bodies has a middle anti-collision part corresponding to a transverse middle region of the cover body, and the middle anti-collision part has a multi-layer structure formed by a plurality of sheets. Item 27: The vehicle according to item 25 or 26, characterized in that the anti-collision body with the multi-layer structure is in a stepped type; and / or at least one of upper ends and lower ends of the plurality of sheets of the anti-collision body is flush. Item 28: The vehicle according to item 24, characterized in that the anti-collision body comprises a plurality of sheets stacked together, wherein a spacing layer is arranged in a receiving space for accommodating the plurality of sheets, the spacing layer divides the receiving space into at least two layered spaces, and the plurality of sheets are arranged in the at least two layered spaces. Item 29: The vehicle according to item 25, characterized in that at least one of the hard sheets has a shape with narrow ends and a wide middle, and the two ends of the hard sheet are respectively provided with notches extending towards the middle of the hard sheet.Item 30: The vehicle of item 29, wherein the cutout separates the hard sheet into an upper portion and a lower portion, the upper portion and the lower portion are connected at a transverse middle location, and at least one sheet is provided on the hard sheet. Item 31: The vehicle of item 30, wherein the at least one sheet provided on the hard sheet is located at the transverse middle location of the lower portion and has a middle protrusion extending toward the upper portion, the middle protrusion does not block the cutout. Item 32: The vehicle of item 30, wherein the at least one sheet provided on the hard sheet includes at least one sheet located at the transverse middle location of the upper portion and at least one sheet located at the transverse middle location of the lower portion. Item 33: The vehicle of item 16, wherein the cover includes three impact bodies, a first of the three impact bodies has a single layer of sheet extending transversely; a second of the three impact bodies has at least one hard sheet and at least one soft sheet, wherein at least one of the hard sheets has a shape with narrow ends and a wide middle, and the hard sheet has a cutout extending toward the middle of the hard sheet at each end of the hard sheet; and a third of the impact bodies has a first sheet extending transversely, a second sheet overlying a transverse middle region of the first sheet, and a third sheet overlying the second sheet. Item 34: The vehicle of item 33, wherein the cutout separates the hard sheet into an upper portion and a lower portion, the upper portion and the lower portion are connected at a transverse middle location, and at least one sheet is provided on the hard sheet, the at least one sheet provided on the hard sheet is located at the transverse middle location of the lower portion and has a middle protrusion extending toward the upper portion, the middle protrusion does not block the cutout. Item 35: The vehicle of item 16, wherein the roof assembly includes a plurality of U-shaped supports and a roof connected to the plurality of U-shaped supports, wherein at least one protective device is provided on the roof, the protective device is formed as a plate or sheet made of an energy-absorbing material or an impact-absorbing material. Item 36: The vehicle of item 35, wherein the protective device is provided in a central region of the roof. Item 37: The vehicle of item 35, wherein the protective device is configured as a double-layer structure including a first layer and a second layer, the second layer is closer to a receiving space formed by the receiving body relative to the first layer, wherein the second layer is softer than the first layer.Item 38: The vehicle according to any one of items 35 to 37, characterized in that the protection device is attached to an inner surface and / or an outer surface of the roof, or the protection device is embedded in the roof. Item 39: A vehicle, characterized in that the vehicle comprises: a containing body having a top opening, the containing body being provided with fifth connecting pieces on both sides thereof in a longitudinal direction; and a roof assembly installed on the containing body, the roof assembly being provided with mating connecting pieces corresponding to the fifth connecting pieces, the fifth connecting pieces and the corresponding mating connecting pieces being detachably connected to each other to close the top opening; and a protection device comprising side impact protection blocks provided on the fifth connecting pieces and / or the mating connecting pieces. Item 40: The vehicle according to item 39, characterized in that when the mating connecting pieces are connected to the fifth connecting pieces, the mating connecting pieces are located outside the fifth connecting pieces, the side impact protection blocks are provided on the mating connecting pieces and protrude outward from housings of the mating connecting pieces; or the fifth connecting pieces are located outside the mating connecting pieces, the side impact protection blocks are provided on the fifth connecting pieces and protrude outward from housings of the fifth connecting pieces. Item 41: The vehicle according to item 39, characterized in that the containing body comprises a box body and a support device, the support device defining a space for accommodating the box body; the support device comprises first and third supports arranged in parallel, and a second support connecting the first and third supports; the first support is adjacent to the top opening, and the third support is located below the first support; and when the mating connecting pieces are connected to the fifth connecting pieces, the side impact protection blocks are located corresponding to the first support; or the second support comprises a horizontal segment and a vertical segment connected to each other, the horizontal segment extends in the longitudinal direction, and the vertical segment is connected between the horizontal segment and the first support, and when the mating connecting pieces are connected to the fifth connecting pieces, the side impact protection blocks are located corresponding to the vertical segment. Item 42: The vehicle according to item 39, characterized in that the side impact protection blocks are attached to the fifth connecting pieces, or are integrally formed with the fifth connecting pieces, or are directly formed by the fifth connecting pieces; or the side impact protection blocks are attached to the mating connecting pieces, or are integrally formed with the mating connecting pieces, or are directly formed by the mating connecting pieces. Item 43: The vehicle according to any one of items 39 to 42, characterized in that the side impact protection blocks have side impact contact areas for bearing side impacts, and the side impact contact areas S are 40 cn2 to.80cm2. Item 44: The carrier according to any one of items 39 to 42, characterized in that the height of the side impact protection block protruding relative to the accommodation body is between 10 mm and 30 mm. Item 45: The carrier according to any one of items 39 to 42, characterized in that the accommodation body comprises a box body and a seat cloth wrapped on the outer surface of the box body, at least one side of the seat cloth in the longitudinal direction is provided with an open storage bag, and the open storage bag at least partially accommodates the corresponding side impact protection block. Item 46: The carrier according to any one of items 39 to 42, characterized in that the matching connecting piece is connected with the roof assembly through a first connecting band, so that under the action of the first connecting band, the matching connecting piece and the fifth connecting piece rotate relative to each other when subjected to a lateral impact; or the fifth connecting piece is connected with the accommodation body through a second connecting band, so that under the action of the second connecting band, the matching connecting piece and the fifth connecting piece rotate relative to each other when subjected to a lateral impact. Item 47: The carrier according to any one of items 39 to 42, characterized in that the protection device further comprises a buffer block, the buffer block is arranged at least on the inner side of the accommodation body in the longitudinal direction, and corresponds to the position of the side impact protection block. Item 48: A carrier, characterized in that the carrier comprises: an accommodation body defining an accommodation space, a protection device arranged on any outer side of the accommodation body in a longitudinal direction or a transverse direction, the protection device is attached to the carrier through a coupling device and has a protection body, and the protection body is made of an energy-absorbing material or an impact-absorbing material. Item 49: The carrier according to item 48, characterized in that the coupling device comprises a first attachment part and a second attachment part matched with the first attachment part, the first attachment part is arranged on one outer side surface of the accommodation body, and the second attachment part is arranged on the protection body of the protection device. Item 50: The carrier according to item 49, characterized in that one of the first attachment part and the second attachment part is a hook surface part, the other of the first attachment part and the second attachment part is a ring surface part; or the first attachment part and the second attachment part are magnetic components matched with each other; or one of the first attachment part and the second attachment part is a recess, and the other of the first attachment part and the second attachment part is a protrusion or a block; or one of the first attachment part and the second attachment part has a curled end portion to engage with the other of the first attachment part and the second attachment part.Item 51: The vehicle according to item 48, characterized in that the coupling means comprises a pivot and a guide member, the protection body is connected to the guide member at its lower side by the pivot, so that the protection body can pivot relative to the guide member, one end of the guide member is connected to the protection body by the pivot, and the other end of the guide member is fixed to the outer bottom of the vehicle. Item 52: The vehicle according to item 51, characterized in that the protection body can be pivoted to a horizontal position by the pivot, and is pushed and guided to move along the guide member to be located below the bottom of the vehicle. Item 53: The vehicle according to item 48, characterized in that the vehicle further comprises a support device connected to the accommodation body, the coupling means comprises a coupling member arranged at the bottom of the protection body, one end of the coupling member is connected to the bottom of the protection body, and the other end is connected with the support device or with the connection of the base on which the vehicle is placed, so that the protection device is attached to the vehicle. Item 54: The vehicle according to item 48, characterized in that the vehicle further comprises a roof assembly and a connector, the roof assembly is detachably attached to the accommodation body, the connector is arranged on the accommodation body and / or the roof assembly, the roof assembly in the unfolded state is connected to the accommodation body by the connector, wherein the protection body has an opening or recess corresponding to the connector, so that the vehicle is attached to the protection body by the coupling means having the connector and the opening or the recess. Item 55: The vehicle according to item 48, characterized in that the vehicle further comprises: a carrying handle, which is detachably and pivotably connected to opposite sides of the accommodation body; and / or a roof assembly, which is detachably attached to the accommodation body, an additional handle or a connecting portion is attached to the top of the roof assembly, the coupling means comprises a fixing strap, the protection device is attached to the vehicle by the fixing strap, one end of the fixing strap is connected to the upper part of the protection body. Item 56: The vehicle according to item 55, characterized in that the other end of the fixing strap is connected to the carrying handle or the additional handle or the connecting portion. Item 57: The vehicle according to item 55, characterized in that the carrying handle has a recess formed on its middle portion to receive and hold the fixing strap passing therethrough, the fixing strap passes over the carrying handle and is provided with a connecting member at its other end, and is connected to a support device connected to the outer bottom of the vehicle by the connecting member.Item 58: The carrier according to any one of items 48 to 57, wherein a cross section of the protection body is rectangular in shape; or the protection body has a first portion having a constant thickness and a second portion extending from one end of the first portion and having a thickness gradually increasing or decreasing from the first portion; or the protection body has a first portion extending along a height direction of the carrier and disposed at a side of the carrier and a second portion extending from the first portion along a longitudinal direction at a top of the carrier; or at least a portion of the protection body is curved; or the protection body has a multi-layer structure. Item 59: The carrier according to any one of items 48 to 57, wherein the protection device is attached to the carrier at a side corresponding to one of short sides of the carrier, or the protection device is attached to the carrier at a side corresponding to one of long sides of the carrier.

Claims

CLAIM 1. A carrier, characterized by: The carrier comprises a box body, the box body comprises a body and a bottom support, the body is connected to the bottom support to form a containing space with the bottom support, wherein a window is arranged on a side surface and / or a top surface of the body, and the window is provided with a sealing member for closing and / or shielding the window, and a protection device is arranged on the sealing member.

2. The carrier of claim 1, characterized in that At least a part of the protection device is detachably connected to the box body; and / or when the box body is placed on a seat of a vehicle, the protection device is arranged at least on a side of the body close to a door.

3. The carrier of claim 1, wherein The sealing member has a first part and a second part connected to each other, at least a part of the first part is non-detachably connected to the body and covers a part of the window, the second part is detachably connected to the body and covers another part of the window, and the protection device is arranged on the second part of the sealing member.

4. The carrier according to any one of claims 1 to 3, characterized in that The protection device is configured to at least one of: the protection device is integrally formed with the sealing member; the protection device is a separately formed structure and is fixedly connected to the sealing member; and / or the protection device is configured as a filling material filled in the sealing member; the protection device has a certain thickness and is configured to have a buffer body of foam and / or plastic and / or elasticity.

5. A carrier, characterized by, The carrier comprises: a containing body having a top opening; a roof assembly detachably connected to the containing body to open and close the top opening, the roof assembly having an unfolded state to close the top opening; and a protection device arranged at least on the roof assembly, wherein the protection device comprises a protective cover, the protective cover comprises a cover body and a second connecting member, the cover body is connected with the containing body and / or the roof assembly through the second connecting member to cover at least a part of an area of the roof assembly when the roof assembly is in the unfolded state.

6. The carrier of claim 5, wherein The protection device further comprises a collision body arranged on the cover body to cover the area of the roof assembly. 74 7. The carrier of claim 5, wherein The containing body is provided with a fifth connecting member on both sides in a longitudinal direction, the roof assembly is provided with a corresponding matching connecting member corresponding to the fifth connecting member, the fifth connecting member and the corresponding matching connecting member are detachably connected to each other, wherein the protection device further comprises a side collision protection block, and the matching connecting member is formed as the side collision protection block.

8. The carrier of claim 7, wherein The accommodating body comprises a box body and a support device, the support device defines a space for accommodating the box body, the roof assembly comprises a plurality of U-shaped supports and a roof connected with the plurality of U-shaped supports, the matching connecting piece protrudes outward by a first distance Q1 relative to the U-shaped support, the matching connecting piece protrudes outward by a second distance Q2 relative to the support device, the matching connecting piece protrudes outward by a third distance Q3 relative to the box body, and Q1 9. The carrier of claim 5, wherein, The cover body comprises an outer fabric layer and an inner fabric layer, the outer fabric layer and the inner fabric layer define an accommodation space, and the accommodation space is provided with a crash body.

10. The carrier of claim 9, wherein The crash body comprises a multi-layer structure formed by stacking a plurality of sheets, and the plurality of sheets comprise at least one hard sheet and / or at least one soft sheet.

11. The carrier of claim 9, wherein At least one of the crash bodies has a middle crash part corresponding to a transverse middle region of the cover body, and the middle crash part has a multi-layer structure formed by stacking a plurality of sheets.

12. Vehicle according to claim 10 or 11, characterised in that The crash body with the multi-layer structure is in a stepped type; and / or at least one of the upper end and the lower end of the plurality of sheets of the crash body is flush.

13. The carrier of claim 9, wherein: The crash body comprises a plurality of sheets stacked together, wherein a spacing layer is arranged in the accommodation space for accommodating the plurality of sheets, the spacing layer divides the accommodation space into at least two layered spaces, and the plurality of sheets are arranged in the at least two layered spaces.

14. The carrier of claim 10, wherein At least one of the hard sheets has a shape with narrow ends and a wide middle, and the two ends of the hard sheet are respectively provided with notches extending towards the middle of the hard sheet.

15. The carrier of claim 14, wherein The notches divide the hard sheet into an upper part and a lower part, the transverse middle positions of the upper part and the lower part are connected, and at least one sheet is further arranged on the hard sheet.

16. The vehicle of claim 15, wherein The at least one sheet arranged on the hard sheet is located at the transverse middle position of the lower part and has a middle protrusion extending towards the upper part, and the middle protrusion does not block the notches.

17. The vehicle of claim 15, wherein: The at least one sheet arranged on the hard sheet comprises at least one sheet located at the transverse middle position of the upper part and at least one sheet located at the transverse middle position of the lower part. 75 The cover body comprises three crash bodies, a first one of the three crash bodies has a transversely extending single-layer sheet; a second one of the three crash bodies has at least one hard sheet and at least one soft sheet, wherein at least one of the hard sheets has a shape with narrow ends and a wide middle, and the two ends of the hard sheet are respectively provided with notches extending towards the middle of the hard sheet; and a third one of the crash bodies has a first sheet transversely extending, a second sheet stacked on a transverse middle region of the first sheet, and a third sheet stacked on the second sheet.

18. The carrier of claim 5, wherein ​ ​ 19. The vehicle of claim 18, wherein: The gap divides the hard sheet into an upper part and a lower part, the upper part and the lower part are connected in the transverse middle position, the hard sheet is further provided with at least one sheet, the at least one sheet provided on the hard sheet is located in the transverse middle position of the lower part, and has a middle protrusion extending to the upper part, and the middle protrusion does not block the gap.

20. A carrier, c h a r a c t e r i s e d in that The carrier comprises: a containing body, having a top opening, fifth connecting pieces are arranged on both sides of the containing body in the longitudinal direction; and a roof assembly, installed on the containing body, the roof assembly is provided with corresponding matching connecting pieces corresponding to the fifth connecting pieces, the fifth connecting pieces and the corresponding matching connecting pieces are detachably connected with each other to close the top opening; and a protection device, comprising side impact protection blocks arranged on the fifth connecting pieces and / or the matching connecting pieces.

21. The carrier of claim 20, wherein, When the matching connecting pieces are connected with the fifth connecting pieces, the matching connecting pieces are located outside the fifth connecting pieces, the side impact protection blocks are arranged on the matching connecting pieces and protrude outward from the housings of the matching connecting pieces; or the fifth connecting pieces are located outside the matching connecting pieces, the side impact protection blocks are arranged on the fifth connecting pieces and protrude outward from the housings of the fifth connecting pieces.

22. The carrier of claim 20, wherein The containing body comprises a box body and a support device, the support device defines a space for accommodating the box body; the support device comprises first and third supports arranged in parallel, and a second support connecting the first and third supports; the first support is adjacent to the top opening, and the third support is located below the first support; and when the matching connecting pieces are connected with the fifth connecting pieces, the positions of the side impact protection blocks correspond to the first supports; or the second support comprises a horizontal segment and a vertical segment connected with each other, the horizontal segment extends in the longitudinal direction, the vertical segment is connected between the horizontal segment and the first support, and when the matching connecting pieces are connected with the fifth connecting pieces, the positions of the side impact protection blocks correspond to the vertical segments. 76 The side impact protection blocks are attached to the fifth connecting pieces, or are integrally formed with the fifth connecting pieces, or are directly formed by the fifth connecting pieces; or the side impact protection blocks are attached to the matching connecting pieces, or are integrally formed with the matching connecting pieces, or are directly formed by the matching connecting pieces.

23. The carrier of claim 20, wherein, The matching connecting pieces are connected with the roof assembly through first connecting belts, so that under the action of the first connecting belts, the matching connecting pieces and the fifth connecting pieces relatively rotate when subjected to lateral impact; or the fifth connecting pieces are connected with the containing body through second connecting belts, so that under the action of the second connecting belts, the matching connecting pieces and the fifth connecting pieces relatively rotate when subjected to lateral impact.

24. The carrier according to any one of claims 20 to 23, characterized in that The carrier is configured to at least one of: the side impact protection block has a side impact contact area bearing a side impact, the side impact contact area S is 40 cm 2 to 80 cm 2 ; the side impact protection block protrudes relative to the accommodation body by a height of 10 mm to 30 mm; the accommodation body includes a box body and a seat cloth wrapped on an outer surface of the box body, at least one side of the seat cloth in a longitudinal direction is provided with an open storage bag, and the open storage bag at least partially accommodates the corresponding side impact protection block; the protection device further includes a buffer block, and the buffer block is at least provided on an inner side of the accommodation body in the longitudinal direction and corresponds to a position of the side impact protection block.

25. The carrier of any one of claims 20 to 23, wherein: ​ 77

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