Carrying device and deformation method of carrying device

Abstract

The invention discloses a carrying device and a deformation method of the carrying device. The carrying device comprises a box body, the box body comprises a first shell and a second shell, the box body has a buckling state and an unfolding state which are opposite to each other, and the first shell and the second shell are correspondingly close to each other and away from each other; and the expansion component adopts a deformable structure and is connected between the first shell and the second shell, the expansion component is accommodated in the box body in a buckled state, and the expansion component extends between the first shell and the second shell in an unfolded state. The expansion mode of the carrying device is improved through the expansion component, the box body with the small size in the buckled state can be greatly expanded, and use is more convenient.

Description

Technical Field

[0001] The present application relates to the field of carriers, and in particular to a carrier and a deformation method of the carrier. Background Art

[0002] As a common travel item, the carrying capacity of a carrier is limited by its external dimensions. Although some designs can deform and expand its volume, the range is limited and its function is single. Summary of the invention

[0003] The present application provides a carrier, comprising:

[0004] The box body comprises a first shell and a second shell, wherein the box body has a relative engaged state and an unfolded state, and the first shell and the second shell are respectively moved closer to and away from each other;

[0005] The expansion component adopts a deformable structure and is connected between the first shell and the second shell. In the buckled state, the expansion component is stored in the box body, and in the unfolded state, the expansion component extends between the first shell and the second shell.

[0006] The present application provides a deformation method of a carrier, the carrier comprising a first shell, a second shell, and an expansion component buckled and connected between the first shell and the second shell;

[0007] The deformation method comprises:

[0008] The first shell and the second shell are freed from the mutual restraint and separated from each other, and the two shells move relative to each other along the supporting surface below the box body during separation;

[0009] During the separation process, the expansion component is deformed accordingly until a preset distance is reached between the first shell and the second shell;

[0010] The expansion member is locked in a current shape to maintain a preset distance between the first shell and the second shell.

[0011] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0012] Optionally, in the unfolded state, the expansion component and the box body enclose a closed or semi-open space.

[0013] Optionally, in the semi-open space, the open side is one of the following:

[0014] Only the top side is open;

[0015] Only the bottom side is open;

[0016] Only the bottom and top sides are open;

[0017] At least one horizontal side is open.

[0018] Optionally, in the unfolded state, the expansion component constitutes a support platform, and the support platform has one or more layers.

[0019] Optionally, the support platform is arranged at least at the bottom or top of the box.

[0020] Optionally, the expansion component includes a frame connected between the first shell and the second shell, and the frame includes a plurality of relatively movable components to adapt the box to switch between a closed state and an expanded state.

[0021] Optionally, the extension component further includes a flexible covering member spread over the frame, and the flexible covering member is arranged in at least a portion of the frame.

[0022] Optionally, when the box is in the unfolded state, the frame encloses a containing space between the first shell and the second shell, and the flexible cover is located on the inner side and / or outer side of the frame relative to the containing space.

[0023] Optionally, the extension component is an accordion structure as a whole.

[0024] Optionally, the extension component is a flexible component.

[0025] Optionally, the flexible member is a cloth bag.

[0026] Optionally, the extension component includes a skeleton connected between the first shell and the second shell, and the skeleton includes:

[0027] The bottom frame has two opposite ends along the fastening direction of the first shell and the second shell and is connected to the box body of the corresponding part.

[0028] Optionally, the base frame is a foldable structure.

[0029] Optionally, the base frame is a coplanar foldable structure.

[0030] Optionally, a length-adjustable or flexible pulling member is provided between the base frame and the box body.

[0031] Optionally, one end of the pulling member is connected to the top of the box body, and the other end is connected to the base frame.

[0032] Optionally, the pulling member is connected to the middle portion of the base frame.

[0033] Optionally, the base frame has at least one movable joint, and when the box is in a buckled state, the base frame is folded around the movable joint.

[0034] Optionally, the skeleton further comprises:

[0035] The end frames are arranged at the two ends of the base frame along the buckling direction of the box body, wherein the end frames can be also used by the box body.

[0036] Optionally, the end frame is located inside the corresponding part of the box.

[0037] Optionally, the skeleton further comprises:

[0038] The side frames are arranged on both sides of the base frame.

[0039] Optionally, when the box is in an unfolded state, the frame forms an accommodating space with an open top between the first shell and the second shell.

[0040] Optionally, a seat cushion and / or a backrest is provided in the accommodating space.

[0041] Optionally, the backrest is connected with a safety belt.

[0042] Optionally, the expansion component includes a front end frame, a rear end frame, and a base frame arranged between the front end frame and the rear end frame, the base frame includes a front portion hinged to the front end frame and a rear portion hinged to the rear end frame, and the front end frame and the rear end frame move toward each other and get closer when folded, and a first support frame and a second support frame hinged to each other are arranged below the base frame, the first support frame is hinged to the front end frame, and the second support frame is hinged to the rear end frame, a first connecting member hinged to both the first support frame and the rear portion is arranged between the first support frame and the front portion, and a second connecting member hinged to both the second support frame and the front portion is arranged between the second support frame and the front portion.

[0043] Optionally, the front and rear parts are hinged to each other.

[0044] Optionally, the front portion and the rear portion are close to each other, and the first linking member and the second linking member are hinged to each other.

[0045] Optionally, along the buckling direction of the box body, the extension component has two opposite ends, each end is connected to a corresponding part of the box body, and the connection portion is at least at the bottom and / or top of the box body.

[0046] Optionally, the extension component is only connected to the top of the box body, or only connected to the bottom of the box body.

[0047] Optionally, both ends of the extension component are provided with columns, and are fixed to the box body through the columns.

[0048] Optionally, the box body is made of a hard material and / or has a built-in structural support member, and the extension component is connected to the hard material and / or the structural support member.

[0049] Optionally, a deformation locking mechanism is provided on the expansion component itself or between the expansion component and the box body, for keeping the box body in the expanded state.

[0050] Optionally, the extension component or the box body is provided with a first unlocking operating member that is linked to the deformation locking mechanism.

[0051] Optionally, the joining portion between the first shell and the second shell in the buckled state has two opposite upright side edges, and after one of the upright side edges is released from the buckling, one of the shells can be flipped around the other upright side edge.

[0052] Optionally, the box body has a flat state, in which one shell is facing downward and the other shell is facing upward, and the shell facing upward can be flipped unilaterally relative to the shell facing downward.

[0053] Optionally, when the two shells are flipped relative to each other, one of the shells is disconnected from the expansion component.

[0054] Optionally, at least one of the first shell and the second shell is also provided with a handrail.

[0055] Optionally, the handrail itself is a retractable structure.

[0056] Optionally, the handrail bar includes multiple levels of sliding nesting and is equipped with a sliding locking mechanism, and the top of the handrail bar is provided with a second unlocking operating member that is linked to the sliding locking structure.

[0057] Optionally, the handrail is retracted into the box.

[0058] Optionally, the top of the handrail is not higher than the top surface of the box body after being retracted, for example, it is flush with the top surface of the box body.

[0059] Optionally, the bottom of the handrail is rotatably matched with the box in which it is located to change the inclination angle of the handrail.

[0060] Optionally, a roller is included, and the roller is installed on at least one of the box body or the expansion component.

[0061] Optionally, the roller is mounted on the box body so that the box body can move between a closed state and an unfolded state.

[0062] Optionally, the rollers include two groups, one group is installed at the bottom of the first shell, and the other group is installed at the bottom of the second shell.

[0063] Optionally, each group of rollers has at least one roller, and the total number of all rollers is at least three, for example four.

[0064] Optionally, when the box is in the closed state and the unfolded state, the relative heights of the rollers remain unchanged.

[0065] Optionally, when the box is in a buckled state, the first shell and the second shell are kept in a buckled state by a coupling member.

[0066] Optionally, the coupling piece is a zipper, a buckle, etc.

[0067] The present application adopts an expansion component to improve the deployment method of the carrier, and a relatively small box in a closed state can be greatly expanded, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 to Figure 7 The three-dimensional images of the carrier device of the present application in the folded state at different angles;

[0069] Figure 8 to Figure 14 It is a three-dimensional view at different angles of the handrail in the carrying device of the present application when the handrail is unfolded;

[0070] Figure 15 to Figure 21 The three-dimensional images of the carrier of the present application at different angles when it is in the unfolded state;

[0071] Figure 22 to Figure 25 This is a schematic diagram of the structure of the expansion component for implementing the first embodiment of the present application;

[0072] Figure 26 to Figure 28 This is a schematic diagram of the structure of another implementation expansion component of the present application;

[0073] Figure 29-30 This is a schematic diagram of the structure in which the roller of the present application is installed on the extension component;

[0074] Figure 31-32 This is a schematic diagram of the structure in which rollers are installed on both the expansion component and the box body of this application;

[0075] Figure 33-34 This is a schematic diagram of a coplanar foldable structure of the base frame of the present application;

[0076] Figure 35-36 It is a structural schematic diagram of the box body flipping along the upright side;

[0077] Figure 37-38 It is a schematic diagram of the structure in which the two shells are relatively flipped when the box is in a flat state.

[0078] The reference numerals in the figures are described as follows:

[0079] 100, box body; 110, first shell; 120, second shell; 130, accommodating space; 131, seat cushion; 132, backrest; 133, safety belt; 134, standing side; 134a, standing side; 134b, standing side;

[0080] 200, extension member; 210, support platform; 220, frame; 221, chassis; 221a, front; 221b, rear; 222, first support frame; 223, second support frame; 224, side frame; 225, first linkage; 226, second linkage; 227, end frame; 227a, front frame; 227b, rear frame; 230, flexible cover; 230a, flexible cover; 230b, flexible cover; 240, first hinge point; 250, movable joint; 260, pulling member;

[0081] 300, roller;

[0082] 310. Grab bar. DETAILED DESCRIPTION

[0083] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0084] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0085] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0086] refer to Figure 1 to Figure 21 , an embodiment of the present application provides a carrier device, comprising:

[0087] The box body 100 includes a first shell body 110 and a second shell body 120. The box body 100 has a relative buckled state and an unfolded state. The first shell body 110 and the second shell body 120 are respectively moved closer to and away from each other.

[0088] The expansion component 200 adopts a deformable structure and is connected between the first shell 110 and the second shell 120. In the buckled state, the expansion component 200 is stored in the box body 100. In the unfolded state, the expansion component 200 extends between the first shell 110 and the second shell 120.

[0089] When the box body 100 is in the locked state, the first shell 110 and the second shell 120 accommodate the expansion component 200, and the appearance is similar to that of a traditional carrier. When the box body 100 is in the unfolded state, the expansion component 200 can be set to different postures according to different needs. For example, as shown in the accompanying drawings, when items need to be contained, the expansion component 200 is unfolded and the top side is open, thereby increasing the capacity.

[0090] The extension component 200 can also be used to provide enclosures, operating platforms, etc. The specific deformable structure of the extension component 200 is set accordingly, and the specific structural features and linkage methods can be combined with other embodiments.

[0091] refer to Figure 1 to Figure 21 , an embodiment of the present application provides a deformation method of a carrier, the carrier includes a first shell 110, a second shell 120, and an expansion component 200 that is buckled and connected between the first shell 110 and the second shell 120;

[0092] Deformation methods include:

[0093] The mutual limitation between the first shell 110 and the second shell 120 is released and the two are separated. When separating, they move relatively along the supporting surface below the box body 100; the mutual limitation between the two is mainly used to keep the box body 100 in a buckled state.

[0094] During the separation process, the extension component 200 is deformed accordingly until a preset distance is reached between the first shell 110 and the second shell 120;

[0095] The expansion member 200 is locked in the current shape to maintain a preset distance between the first housing 110 and the second housing 120 .

[0096] The present application adopts the expansion component 200 to improve the deployment method of the carrier, and the box body 100 with a smaller volume in the buckled state can be greatly expanded, making it more convenient to use.

[0097] refer to Figure 29 to Figure 32The carrier device of this embodiment can be installed with rollers 300 according to actual needs, wherein the rollers 300 are installed on at least one of the box body 100 or the expansion component 200. For example, when the rollers 300 are installed on the box body 100, the box body 100 can be moved in the buckled state and the unfolded state, that is, when the first shell 110 and the second shell 120 are buckled / separated, the rollers 300 at the bottom of each of them can move relative to each other along the supporting surface below the box body 100. The carrier device can be kept upright by the rollers 300. Moreover, during the deformation process, the first shell 110 and the second shell 120 can always be kept upright and the box state can be switched.

[0098] Of course, the roller 300 can also be installed on the expansion component 200. When the box 100 is in the buckled state, the roller 300 is hidden in the box 100, and when the box 100 is in the unfolded state, the roller 300 contacts the support surface.

[0099] In addition, when locking the expansion component 200 in the current shape, the expansion component 200 itself may be locked by using a deformation locking mechanism, or an additional supporting component may be used.

[0100] The carrier device involved in the present application has a front side and a rear side opposite to each other. For ease of understanding, reference may be made to Figure 7 In the figure, X is the front side and Y is the rear side. Unless otherwise specified, the first housing 110 in this embodiment is located at the front side and the second housing 120 is located at the rear side. When the user drags the carrier at an angle, the user is generally at the rear side.

[0101] In one embodiment, in the unfolded state, the expansion component 200 and the box body 100 enclose a closed or semi-open space to meet various needs.

[0102] In a semi-open space, the open side is one of the following:

[0103] Only the top side is open; the expansion member 200 and the box body enclose a storage space 130, and the top is open for easy access to the items or passengers;

[0104] Only the bottom side is open; the expansion component 200 together with the box body 100 forms a cover or a roof structure, and the top surface with the rigid member can also serve as a support platform 210; Only the bottom side and the top side are open; the expansion component 200 together with the box body forms a circumferentially closed enclosure structure;

[0105] At least one horizontal side is open, and the expansion component 200 together with the box body forms a circumferentially semi-closed enclosure structure, while the top side and the bottom side can be either open or closed.

[0106] In the unfolded state, when the expansion component 200 forms the support platform 210 , the support platform 210 is one or more layers. The height of the support platform 210 is at least arranged at the bottom or top of the box body 100 .

[0107] The expansion component 200 includes a frame 220 connected between the first shell 110 and the second shell 120. The frame 220 includes a plurality of relatively movable parts to adapt the box 100 to switch between the closed state and the expanded state. The frame 220 is designed according to the functional requirements of the expansion component 200.

[0108] Furthermore, the extension component 200 further includes a flexible cover 230 spread on the frame 220 , and the flexible cover 230 is arranged on at least a portion of the frame 220 , for example, to cover both sides of the frame 220 in the horizontal direction.

[0109] When the box body 100 is in the unfolded state, the skeleton 220 forms a containing space 130 between the first shell 110 and the second shell 120. Relative to the containing space 130, the flexible cover 230 is located on the inner side and / or the outer side of the skeleton 220, plays a shielding and protective role, and can also participate in stabilizing the shape of the skeleton 220.

[0110] In order to achieve deformation, the expansion component 200 as a whole may also adopt an accordion structure.

[0111] In one embodiment, the extension component 200 may be a flexible member, specifically a cloth bag. When it needs to be fastened, the flexible member only needs to be folded into the box body 100. When in use, the flexible member is unfolded. Not only that, it can also bear weight after being tightened.

[0112] The expansion component 200 includes a frame 220 connected between the first shell 110 and the second shell 120, and the frame 220 includes:

[0113] The bottom frame 221 has two opposite ends along the engagement direction of the first shell 110 and the second shell 120 and is connected to the corresponding part of the box body 100. In one embodiment, reference can be made to Figure 33-34 The bottom frame 221 is a foldable structure. In order to reduce the interference of the bottom frame 221 with the items in the box 100 in the buckled state, the bottom frame 221 is specifically a coplanar foldable structure. The folded bottom frame 221 is close to the bottom surface of the box 100, which minimizes the interference with the internal space of the box 100 and avoids affecting the loading capacity of the box 100. In order to increase the load-bearing weight of the bottom frame 221, a length-adjustable or flexible pulling member 260 is provided between the bottom frame 221 and the box 100, wherein one end of the pulling member 260 is connected to the top of the box 100, and the other end is connected to the bottom frame 221. Preferably, the pulling member 260 is connected to the middle of the bottom frame 221, and at least two pulling members are arranged, for example, referring to Fig.33There are two pulling members 260, one end of which is connected to the top of the first shell 110, and one end of the other is connected to the top of the second shell 120, and the two are symmetrical.

[0114] In one embodiment, the bottom frame 221 has at least one movable joint 250 , and when the box body 100 is in the buckled state, the bottom frame 221 is folded around the movable joint 250 .

[0115] The bottom frame 221 can bear the weight and keep the box 100 in an unfolded state. In order to hold items, the bottom frame 221 can be covered with a flexible cover 230 .

[0116] The skeleton 220 also includes:

[0117] The end frames 227 are arranged at both ends of the bottom frame 221 along the buckling direction of the box body 100, and are located inside the corresponding part of the box body 100. Of course, in this embodiment, the end frames 227 can also be used by the box body 100.

[0118] The skeleton 220 also includes:

[0119] The side frames 224 are arranged on both sides of the bottom frame 221 .

[0120] The division of various parts in the skeleton 220 is basically based on spatial positions. As for the parts themselves, at least two of them can adopt an integrated structure, or partially share the interface.

[0121] In one embodiment, when the box body 100 is in the unfolded state, the frame 220 forms an accommodating space 130 with an open top between the first shell 110 and the second shell 120 .

[0122] The accommodating space 130 can be used to carry items and infants, and is provided with a seat cushion 131 and / or a backrest 132, wherein the backrest 132 is connected to a safety belt 133. When the user carries the infant, he only needs to tie the infant with the safety belt 133 and pull the carrying device to walk.

[0123] The specific structure of the extension component 200 can be various, for example, Figure 22 to Figure 25 The expansion component 200 provided in one embodiment of the present application includes two end frames 227, namely a front frame 227a and a rear frame 227b, and a bottom frame 221 arranged between the front frame 227a and the rear frame 227b. The bottom frame 221 includes a front portion 221a hinged to the front frame 227a and a rear portion 221b hinged to the rear frame 227b. When folded, the front frame 227a and the rear frame 227b move toward each other, and the front portion 221a and the rear portion 221b are hinged to each other.

[0124] There is a accommodating space 130 above the base frame 221. In order to achieve linkage, a first support frame 222 and a second support frame 223 which are hinged to each other are arranged below the base frame 221. The first support frame 222 is hinged to the front end frame 227a, and the second support frame 223 is hinged to the rear end frame 227b. A first connecting member 225 which is hinged to the first support frame 222 and the rear portion 221b is arranged between the first support frame 222 and the rear portion 221b, and a second connecting member 226 which is hinged to the second support frame 223 and the front portion 221a is arranged between the second support frame 223 and the front portion 221a.

[0125] As long as any one of the front portion 221a, the rear portion 221b, the first support frame 222 and the second support frame 223 rotates, the first linking member 225 and the second linking member 226 drive the other three to rotate synchronously and move closer to each other, thereby driving the front frame 227a and the rear frame 227b to move towards each other.

[0126] In order to facilitate the placement of items, a flexible cover 230 can be installed, and the bottom frame 221 supports the bottom of the flexible cover 230a. The flexible cover 230b can also be arranged between the two end frames 227 to close the accommodating space on the corresponding side, and a foldable side frame 224 can also be provided to support the flexible cover 230b.

[0127] The first linking member 225, the second linking member 226, the first support frame 222 and the second support frame 223 are located below the bottom frame 221. When deformed, the front portion 221a and the rear portion 221b are flipped upward, and the highest point after folding does not exceed the height of the carrier.

[0128] In another embodiment, see Figure 26 to Figure 28 In another embodiment, the front portion 221a and the rear portion 221b are close to each other but not directly hinged, but are hinged to each other at the first linking member 225 and the second linking member 226. The two support frames are hinged to achieve folding linkage. The first support frame 222 and the second support frame 223 are hinged at the first hinge point 240, and the deformation locking mechanism can be set at the first hinge point 240. Of course, the deformation locking mechanism can also be set at at least one other hinge point.

[0129] The first support frame 222 and the second support frame 223 have an angle α, 170<α<180 degrees. The opening of the angle α faces upwards. Since the two support frames rotate upward relative to the side frame 224 when folding, they have to experience the situation of α=180 degrees. To a certain extent, the accidental folding of the whole vehicle is limited.

[0130] In the above two embodiments, the movable joint 250 is arranged in the middle position of the base frame 221, the front part 221a and the rear part 221b are symmetrically arranged, the first linking member 225 and the second linking member 226 are symmetrically arranged, and the first support frame 222 and the second support frame 223 are symmetrically arranged.

[0131] The front part 221a and the rear part 221b are both plate-shaped. Alternatively, the front part 221a and the rear part 221b include two side rods (not shown) respectively hinged to the corresponding side frames, and a cross rod (not shown) connected between the two side rods. Both methods can improve the structural strength of the bottom frame 221. The first support frame 222, the second support frame 223, the first linking member 225 and the second linking member 226 can adopt the same structure as the front part 221a and the rear part 221b, or be rods.

[0132] Along the fastening direction of the box body 100, the expansion component 200 has two opposite ends, each end is connected to the corresponding part of the box body 100, and the connection part is at least at the bottom and / or the top of the box body 100. There are many ways to connect the expansion component 200 to the box body 100, for example, the expansion component 200 is only connected to the top of the box body 100, or only connected to the bottom of the box body 100, and for example, the two ends of the expansion component 200 are respectively provided with columns and fixed to the box body 100 through the columns. The box body 100 is a hard material and / or has a built-in structural support, and the expansion component 200 is connected to the hard material and / or the structural support.

[0133] Of course, a deformation locking mechanism is provided on the expansion component 200 itself or between the expansion component 200 and the box body 100 to keep the box body 100 in the expanded state. In order to facilitate one-key unlocking, a first unlocking operating member linked to the deformation locking mechanism is provided on the expansion component 200 or the box body 100. When the first unlocking operating member is activated, the deformation locking mechanism is released, and the expansion component 200 can be folded and stored in the box body 100.

[0134] refer to Figure 35 to Figure 38 When the expansion member 200 is not used, the box 100 has a variety of ways of storing items, such as referring to Figure 35-36 The joint portion of the first shell 110 and the second shell 120 in the buckled state has two opposite upright sides 134 (respectively, an upright side 134a and an upright side 134b). After one of the upright sides 134a is released from the buckle, one of the shells can be flipped around the other upright side 134b.

[0135] For example, reference Figure 37-38 The box body 100 has a flat state, in which one shell faces downward and the other shell faces upward, and the upward shell can be flipped unilaterally relative to the downward shell. In order to avoid interference with the expansion component 200, when the two shells are flipped relative to each other, one of the shells is disconnected from the expansion component 200.

[0136] refer to Figure 1 to Figure 21At least one of the first shell 110 and the second shell 120 is further provided with a handrail 310. In the present embodiment, the handrail 310 is provided in the second shell 120. The handrail 310 itself is a retractable structure, including multiple stages of sliding nesting, and is provided with a sliding locking mechanism. The top of the handrail 310 is provided with a second unlocking operating member linked to the sliding locking structure. Furthermore, the handrail 310 is incorporated into the box 100 after being retracted. Preferably, the top of the handrail 310 after being retracted is not higher than the top surface of the box 100, for example, it is flush with the top surface of the box 100, so that the overall appearance is neater and more beautiful.

[0137] The bottom of the handrail bar 310 is rotatably matched with the box body 100 so as to change the inclination angle of the handrail bar 310 .

[0138] The rollers 300 include two groups, one group is installed at the bottom of the first housing 110 , and the other group is installed at the bottom of the second housing 120 .

[0139] Each group of rollers 300 is at least one, and the total number of all rollers 300 is at least three, for example four, so that the box 100 can stand. In this embodiment, the relative height of each roller 300 remains unchanged when the box 100 is in the closed state and the unfolded state.

[0140] When the box 100 is in the buckled state, the first shell 110 and the second shell 120 are kept in the buckled state by a coupling member to prevent accidental unfolding. Specifically, the coupling member is a zipper, a buckle, etc.

[0141] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0142] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A carrier, characterized in that: include: The box body comprises a first shell and a second shell, wherein the box body has a relative engaged state and an unfolded state, and the first shell and the second shell are respectively moved closer to and away from each other; The expansion component adopts a deformable structure and is connected between the first shell and the second shell. In the buckled state, the expansion component is stored in the box body, and in the unfolded state, the expansion component extends between the first shell and the second shell.

2. The carrier according to claim 1, characterized in that: In the unfolded state, the expansion component and the box body enclose a closed or semi-open space, and the expansion component constitutes a support platform, and the support platform has one or more layers.

3. The carrier according to claim 1, characterized in that: The expansion component includes a frame connected between the first shell and the second shell, and the frame includes a plurality of relatively movable components to adapt the box to switch between a closed state and an expanded state.

4. The carrier according to claim 3, characterized in that The skeleton comprises: A bottom frame, along the fastening direction of the first shell and the second shell, the bottom frame has two opposite ends and is connected to the box body of the corresponding part; End frames are arranged at both ends of the base frame along the box body buckling direction; The side frames are arranged on both sides of the base frame.

5. The carrier according to claim 4, characterized in that The base frame is provided with at least one movable joint, and when the box body is in a buckled state, the base frame is folded around the movable joint.

6. The carrier according to claim 4, characterized in that The expansion component includes a front end frame, a rear end frame, and a base frame arranged between the front end frame and the rear end frame, the base frame includes a front portion hinged to the front end frame and a rear portion hinged to the rear end frame, and the front end frame and the rear end frame move toward each other and get closer when folded, and a first support frame and a second support frame hinged to each other are arranged below the base frame, the first support frame is hinged to the front end frame, and the second support frame is hinged to the rear end frame, a first connecting piece hinged to both the first support frame and the rear portion is arranged between the first support frame and the front portion, and a second connecting piece hinged to both the second support frame and the front portion is arranged between the second support frame and the front portion.

7. The carrier according to claim 1, characterized in that: The joint portion of the first shell and the second shell in the buckled state has two opposite upright side edges, and after one of the upright side edges is released from the buckling, one of the shells can be turned around the other upright side edge.

8. The carrier according to claim 1, characterized in that The box body has a flat state, in which one shell faces downward and the other shell faces upward, and the shell facing upward can be flipped unilaterally relative to the shell facing downward.

9. The carrier according to claim 1, characterized in that: It includes a roller, and the roller is installed on at least one of the box body or the expansion component.

10. A method for deforming a carrier, characterized in that: The carrier device comprises a first shell, a second shell and an expansion component snap-fitted and connected between the first shell and the second shell; The deformation method comprises: The first shell and the second shell are freed from the mutual restraint and separated from each other, and the two shells move relative to each other along the supporting surface below the box body during separation; During the separation process, the expansion component is deformed accordingly until a preset distance is reached between the first shell and the second shell; The expansion member is locked in a current shape to maintain a preset distance between the first shell and the second shell.

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