SUITCASE

Abstract

The embodiments of the present disclosure provide a multifunctional suitcase. The suitcase may include a suitcase body and a support mechanism. The support mechanism may be configured to support the suitcase body. The support mechanism may be retractable and/or foldable with respect to the suitcase body. The suitcase according to some embodiments of the present disclosure may be transformed into the table while maintaining its storage function.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No 201910106771.1, filed on Feb. 2, 2019, and Chinese Patent Application No. 201910305680.0, filed on Apr. 16, 2019. Each of the above-referenced applications is expressly incorporated herein by reference.

TECHNICAL FIELD

This disclosure generally relates to a suitcase, and more particularly, relates to a suitcase with a folding leg and a multifunctional platform.

BACKGROUND

A suitcase is a portable case used to carry items when one goes out. Functions of existing suitcases are relatively simple, and so it is difficult to meet the needs of traveling.

SUMMARY

According to an aspect of the present disclosure, a suitcase may be provided. The suitcase may include a suitcase body 1 and a support mechanism. The support mechanism may be configured to support the suitcase body 1. The support mechanism may be retractable and/or foldable with respect to the suitcase body 1.

In some embodiments, at least a portion of the support mechanism may be configured as a drawbar of the suitcase.

In some embodiments, the suitcase body 1 may maintain horizontal by support of the support mechanism when the suitcase is placed on a surface.

In some embodiments, the support mechanism may include a first support mechanism 2 and a second support mechanism 3. The first support mechanism 2 and the second support mechanism 3 may be oppositely configured on a rear surface of the suitcase body 1. The first support mechanism 2 may be movable to a first position to form a first leg and a second position to form a drawbar of the suitcase. The second support mechanism 3 may be movable to a third position to form a second leg of the suitcase.

In some embodiments, the first support mechanism 2 may be rotatably configured on the rear surface of the suitcase body 1 via at least one first connection limit mechanism 4. The at least one first connection limit mechanism 4 may be configured to allow the first support mechanism 2 to be rotated to the first position or the second position.

In some embodiments, the first support mechanism 2 may be rotatably connected to the at least one first connection limit mechanism 4 via a first hinge assembly. As used herein, a hinge assembly may include one or more hinges. For instance, the first hinge assembly as illustrated in FIGS. 2, 4, 5 includes a first pin 445, a second pin 433, a first hinge hole 4313, a second hinge hole 221, or the like. The first limit structure 21 may be configured on the first support mechanism 2. A second limit structure 41 and a third limit structure 42 may be configured on each of the at least one first connection limit mechanism 4. The first limit structure 21 may be configured to cooperate with the second limit structure 41 and the third limit structure 42 to allow the first support mechanism 2 to be rotated to the first position or the second position.

In some embodiments, at least one of the at least one first connection limit mechanism 4 may include a rotating bracket 43 and a fixed bracket 44. The rotating bracket 43 may be of a U-shape. A first curved part 4311 may be formed on the rotating bracket 43. The second limit structure 41 and the third limit structure 42 may be configured on the first curved part 4311. The fixed bracket 44 may be of a U-shape. The fixed bracket 44 may be fixed to the rear surface of the suitcase body 1. The rotating bracket 43 may be rotatably connected to the fixed bracket 44 via a second hinge assembly. The first support mechanism 2 may be rotatably connected to the rotating bracket 43 via a third hinge assembly. The first limit structure 21 may be engaged with the second limit structure 41 so as to allow the first support mechanism 2 to drive the rotating bracket 43 to be rotated to the first position.

In some embodiments, at least one of the at least one first connection limit mechanism 4 may include an elastic connector 45. A first end of the elastic connector 45 may be connected to the rotating bracket 43, and a second end of the elastic connector 45 may be connected to the fixed bracket 44. The first support mechanism 2, the rotating bracket 43, and the fixed bracket 44 may be configured to form a stable structure (e.g., a stable triangle of forces).

In some embodiments, at least one of the at least one first connection limit mechanism 4 may include a connection limit base 46 of a U-shape. A second curved part 4611 may be formed on the connection limit base 46. The second limit structure 41 and the third limit structure 42 may be configured on the second curved part 4611. The connection limit base 46 may be fixed on the rear surface of the suitcase body 1. The first support mechanism 2 may be rotatably connected to the connection limit base 46 via a fourth hinge assembly.

In some embodiments, a fourth limit structure 47 may be configured on the second curved part 4611. The first limit structure 21 may be engaged with the fourth limit structure 47 that is configured to maintain the first support mechanism 2 in a folded state.

In some embodiments, the first support mechanism 2 may include a first rod 22 and a second rod 24. The first limit structure 21 may be attached to the first rod 22 and the second rod 24. A first end of the first rod 22 connected to the first limit structure 21 may be rotatably attached to the rear surface of the suitcase body 1 via one of the at least one first connection limit mechanism 4. A first end of the second rod 24 connected to the first limit structure 21 may be rotatably configured on the rear surface of the suitcase body 1 via another one of the at least one first connection limit mechanism 4. A second end of the first rod 22 may be connected to a handle 23. A second end of the second rod 24 may be connected to the handle 23 such that the first rod 22, the handle 23, and the second rod 24 may form a U-shaped structure.

In some embodiments, the first support mechanism 2 may include a first reinforcing rod 25. The first reinforcing rod 25 may be configured between the first rod 22 and the second rod 24.

In some embodiments, at least one of the first rod 22 or the second rod 24 may be a retractable rod.

In some embodiments, the first limit structure 21 may be retractably configured on the first support mechanism 2. A control component 251 may further be configured on the first support mechanism 2. The control component 251 may be connected to the first limit structure 21 via a gear that is configured to allow the control component 251 to control extension or retraction of the first limit structure 21.

In some embodiments, the second support mechanism 3 may be rotatably configured on the rear surface of the suitcase body 1 via at least one second connection limit mechanism 5. The at least one second connection limit mechanism 5 may be configured to allow the second support mechanism 3 to be rotated to the third position.

In some embodiments, at least one of the at least one second connection limit mechanism 5 may have a same structure as at least one of the at least one first connection limit mechanism 4.

In some embodiments, the second support mechanism 3 may include a first support rod 31 and a second support rod 32. A fifth limit structure 33 may be configured on each of a first end of the first support rod 31 and a first end of the second support rod 32, respectively. Each of the first end of the first support rod 31 and the first end of the second support rod 32 may be rotatably connected to a corresponding second connection limit mechanism 5 via a fifth hinge. A second limit structure 41 and a third limit structure 42 may be further configured on each of the at least one second connection limit mechanism 5. The fifth limit structures 33 may be configured to cooperate with the second limit structure 41 and the third limit structure 42 configured on each of the at least one second connection limit mechanism 5 to allow the second support mechanism 3 to be rotated to the third position via the at least one second connection limit mechanism 5.

In some embodiments, the second support mechanism 3 may include a second reinforcing rod 34. The second reinforcing rod 34 may be disposed between the first support rod 31 and the second support rod 32.

In some embodiments, when the first support mechanism 2 is in the first position, the first support mechanism 2 may form an angle α with respect to the rear surface of the suitcase body 1. When the second support mechanism 3 is in the third position, the second support mechanism 3 may form an angle β with respect to the rear surface of the suitcase body 1. α may be different from β such that the suitcase body 1 supported by the first support mechanism 2 and the second support mechanism 3 may maintain horizontal when the suitcase is placed on an inclined surface.

In some embodiments, when the first support mechanism 2 is in the first position, the first support mechanism 2 may form an angle α with respect to the rear surface of the suitcase body 1. When the second support mechanism 3 is in the third position, the second support mechanism 3 may form an angle β with respect to the rear surface of the suitcase body 1. α may be the same as β such that the suitcase body 1 supported by the first support mechanism 2 and the second support mechanism 3 may maintain horizontal when the suitcase is placed on a horizontal surface.

In some embodiments, the suitcase may further include at least one extension platform. The extension platform may be configured on the suitcase body 1 or in the suitcase body 1 in a foldable or extendable manner.

In some embodiments, the suitcase may further include at least one rolling component 7 configured on a bottom surface of the suitcase body 1.

In some embodiments, the support mechanism may include at least two legs. The at least two legs may be independent of a drawbar of the suitcase. The at least two legs may be retractable and/or foldable with respect to the suitcase body 1.

In some embodiments, the support mechanism may include four legs. The four legs may be configured at four corners of the suitcase. The four legs may be retractable with respect to the suitcase body 1.

In some embodiments, the support mechanism may include a leg. The leg may be configured at a center of a surface of the suitcase body (1).

According to an aspect of the present disclosure, a suitcase may be provided. The suitcase including a suitcase body 1, a first support mechanism 2, and a second support mechanism 3. The first support mechanism 2 and the second support mechanism 3 may be oppositely configured on a rear surface of the suitcase body 1. The first support mechanism 2 may be movable to a first position to form a first leg of the suitcase via at least one first connection limit mechanism 4. The second support mechanism 3 may be movable to a third position to form a second leg of the suitcase. At least one of the at least one first connection limit mechanism 4 may include an elastic connector 45. A first end of the elastic connector 45 may be connected to the first support mechanism 2, and a second end of the elastic connector 45 may be connected to the rear surface of the suitcase body 1. The first support mechanism 2, and the rear surface of the suitcase body 1 may be configured to form a stable structure.

In some embodiments, the first support mechanism 2 may be rotatably connected to the at least one first connection limit mechanism 4 via a first hinge assembly. A first limit structure 21 may be configured on the first support mechanism 2. A second limit structure 41 and a third limit structure 42 may be configured on each of the at least one first connection limit mechanism 4. The first limit structure 21 may be configured to cooperate with the second limit structure 41 and the third limit structure 42 to allow the first support mechanism 2 to be rotated to the first position.

In some embodiments, the first support mechanism 2 may include a first rod 22 and a second rod 24. The first limit structure 21 may be attached to the first rod 22 and the second rod 24. A first end of the first rod 22 connected to the first limit structure 21 may be rotatably attached to the rear surface of the suitcase body 1 via one of the at least one first connection limit mechanism 4. A first end of the second rod 24 connected to the first limit structure 21 may be rotatably configured on the rear surface of the suitcase body 1 via another one of the at least one first connection limit mechanism 4. A second end of the first rod 22 may be connected to a handle 23. A second end of the second rod 24 may be connected to the handle 23 such that the first rod 22, the handle 23, and the second rod 24 may form a U-shaped structure.

In some embodiments, the first support mechanism 2 may include a first reinforcing rod 25. The first reinforcing rod 25 may be configured between the first rod 22 and the second rod 24.

In some embodiments, at least one of the first rod 22 or the second rod 24 may be a retractable rod.

In some embodiments, the first limit structure 21 may be retractably configured on the first support mechanism 2. A control component 251 may be further configured on the first support mechanism 2. The control component 251 may be connected to the first limit structure 21 via a gear that is configured to allow the control component 251 to control extension or retraction of the first limit structure 21.

In some embodiments, the second support mechanism 3 may be rotatably configured on the rear surface of the suitcase body 1 via at least one second connection limit mechanism 5. The at least one second connection limit mechanism 5 may be configured to allow the second support mechanism 3 to be rotated to the third position.

In some embodiments, at least one of the at least one second connection limit mechanism 5 may have a same structure as at least one of the at least one first connection limit mechanism 4.

In some embodiments, the second support mechanism 3 may include a first support rod 31 and a second support rod 32. A fifth limit structure 33 may be configured on each of a first end of the first support rod 31 and a first end of the second support rod 32, respectively. Each of the first end of the first support rod 31 and the first end of the second support rod 32 may be rotatably connected to a corresponding second connection limit mechanism 5 via a hinge. A second limit structure 41 and a third limit structure 42 may be further configured on each of the at least one second connection limit mechanism 5. The fifth limit structures 33 may be configured to cooperate with the second limit structure 41 and the third limit structure 42 configured on each of the at least one second connection limit mechanism 5 to allow the second support mechanism 3 to be rotated to the third position via the at least one second connection limit mechanism 5.

In some embodiments, the second support mechanism 3 may include a second reinforcing rod 34. The second reinforcing rod 34 may be disposed between the first support rod 31 and the second support rod 32.

In some embodiments, the first support mechanism 2 may be movable to a second position to form a drawbar of the suitcase.

In some embodiments, when the first support mechanism 2 is in the first position, the first support mechanism 2 may form an angle α with respect to the rear surface of the suitcase body 1. When the second support mechanism 3 is in the third position, the second support mechanism 3 may form an angle β with respect to the rear surface of the suitcase body 1. α is different from β such that the suitcase body 1 supported by the first support mechanism 2 and the second support mechanism 3 may maintain horizontal when the suitcase is placed on an inclined surface.

In some embodiments, when the first support mechanism 2 is in the first position, the first support mechanism 2 may form an angle α with respect to the rear surface of the suitcase body 1. When the second support mechanism 3 is in the third position, the second support mechanism 3 may form an angle β with respect to the rear surface of the suitcase body 1. α is the same as β such that the suitcase body 1 supported by the first support mechanism 2 and the second support mechanism 3 may maintain horizontal when the suitcase is placed on a horizontal surface.

In some embodiments, the suitcase may further include at least one platform configured on the suitcase body 1 or in the suitcase body 1 in a foldable or extendable manner.

In some embodiments, the suitcase may further include at least one rolling component 7 configured on a bottom surface of the suitcase body 1.

Compared to prior arts, the suitcase of the present disclosure may have at least the following beneficial effects:

Firstly, in the folded state, the first support mechanism 2 and the second support mechanism 3 may be folded to align with the rear surface of the suitcase body to save space. In the unfolded state, the first support mechanism 2 may be movable to the first position to form a first leg of the suitcase. The second support mechanism 3 may be movable to the third position to form a second leg of the suitcase. The suitcase body 1, the first support mechanism 2, and the second support mechanism 3 may form a table. Accordingly, the suitcase may include a platform having a function of the table. In addition, the first support mechanism 2 may be movable to the second position to form the drawbar of the suitcase. The suitcase according to some embodiments of the present disclosure may be transformed into the table while maintaining its storage function.

Furthermore, one or more platforms for placing items may be configured on or in the suitcase body 1 in a foldable or extendable manner. Accordingly, the suitcase may include multifunctional platforms.

Moreover, the suitcase according to some embodiments of the present disclosure may include a charging interface configured on the suitcase body. Accordingly, a mobile device may be connected to a power supply in the suitcase more conveniently.

Additionally, the suitcase according to some embodiments of the present disclosure may be supported at different heights, and may maintain horizontal when it is placed on an inclined surface or an uneven surface.

Additional features will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and the accompanying drawings or may be learned by production or operation of the examples. The features of the present disclosure may be realized and attained by practice or use of various aspects of the methodologies, instrumentalities and combinations set forth in the detailed examples discussed below.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure is further described in terms of exemplary embodiments. These exemplary embodiments are described in detail with reference to the drawings. These embodiments are non-limiting exemplary embodiments, in which like reference numerals represent similar structures throughout the several views of the drawings, and wherein:

FIG. 1 is a schematic diagram of an exemplary suitcase according to some embodiments of the present disclosure;

FIG. 2 is a schematic diagram of an exemplary rotating bracket of a first connection limit mechanism according to some embodiments of the present disclosure;

FIG. 3 is a schematic diagram of an exemplary fixed bracket of a first connection limit mechanism according to some embodiments of the present disclosure;

FIGS. 4 and 5 are schematic diagrams of an exemplary connection structure connecting a rotating bracket and a fixed bracket of a first connection limit mechanism according to some embodiments of the present disclosure;

FIG. 6 is a front view of a first connection limit mechanism according to some embodiments of the present application;

FIG. 7 is a left side view of a first connection limit mechanism according to some embodiments of the present application;

FIG. 8 is a schematic diagram of an exemplary first support mechanism according to some embodiments of the present disclosure;

FIG. 9 is a schematic diagram of an exemplary first support mechanism according to some embodiments of the present disclosure;

FIG. 10 is a schematic diagram of an exemplary first support mechanism according to some embodiments of the present disclosure;

FIG. 11 is a schematic diagram of an exemplary second support mechanism according to some embodiments of the present disclosure;

FIGS. 12, 13, and 14 are schematic diagrams of an exemplary table formed by a suitcase according to some embodiments of the present disclosure;

FIGS. 15 and 16 are schematic diagrams of exemplary connection structures connecting a first support mechanism and a first connection limit mechanism according to some embodiments of the present disclosure;

FIGS. 17 and 18 are schematic diagrams of exemplary first support mechanisms in a folded state according to some embodiments of the present disclosure;

FIG. 19 is a schematic diagram of an exemplary connection structure connecting a first support mechanism and a first connection limit mechanism according to some embodiments of the present disclosure;

FIG. 20 is a schematic diagram of an exemplary first support mechanism in a folded state according to some embodiments of the present disclosure;

FIG. 21 is a schematic diagram of an exemplary connection structure connecting a second support mechanism and a second connection limit mechanism according to some embodiments of the present disclosure;

FIGS. 22 and 23 are schematic diagrams of an exemplary suitcase in which a drawbar is formed by a first support mechanism according to some embodiments of the present disclosure;

FIG. 24 is a schematic diagram of an exemplary first support mechanism in a second position according to some embodiments of the present disclosure;

FIG. 25 is a schematic diagram of an exemplary first support mechanism in a second position according to some embodiments of the present disclosure;

FIG. 26 is a schematic diagram of an exemplary suitcase with a storage chamber according to some embodiments of the present disclosure;

FIG. 27 is a schematic diagram of an exemplary first limit structure being retractably configured on a first support mechanism according to some embodiments of the present disclosure;

FIGS. 28 to 34 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure;

FIGS. 35 to 37 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure;

FIGS. 38 to 40 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure;

FIGS. 41 to 43 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure;

FIGS. 44 to 46 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure;

FIGS. 47 to 49 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure; and

FIGS. 50 to 53 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure.

DETAILED DESCRIPTION

In the following detailed description, numerous specific details are set forth by way of examples in order to provide a thorough understanding of the relevant disclosure. However, it should be apparent to those skilled in the art that the present disclosure may be practiced without such details. In other instances, well-known methods, procedures, systems, components, and/or circuitry have been described at a relatively high-level, without detail, in order to avoid unnecessarily obscuring aspects of the present disclosure. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present disclosure. Thus, the present disclosure is not limited to the embodiments shown, but to be accorded the widest scope consistent with the claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. As used herein, the singular forms “a,” “an,” and “the,” are intended to include the plural forms as well, unless the context clearly indicates otherwise. As used herein, the terms “and/or” and “at least one of” include any and all combinations of one or more of the associated listed items. It will be further understood that the terms “comprises,” “comprising,” “includes,” and/or “including,” when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Also, the term “exemplary” is intended to refer to an example or illustration. The term “based on” means “based at least in part on.” The term “one embodiment” means “at least one embodiment.” The term “another embodiment” means “at least one additional embodiment.” The term “plurality” means two or more. The term “at least one” means one or more. The term “multifunctional” means having two or more functions.

It will be understood that, although the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed as a second element, and, similarly, a second element could be termed as a first element, without departing from the scope of exemplary embodiments of the present disclosure.

These and other features, and characteristics of the present disclosure, as well as the methods of operation and functions of the related elements of structure and the combination of parts and economies of manufacture, may become more apparent upon consideration of the following description with reference to the accompanying drawings, all of which form a part of this disclosure. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended to limit the scope of the present disclosure. It is understood that the drawings are not to scale.

For illustration purposes, the following description is provided to help better understanding a suitcase. It is understood that this is not intended to limit the scope of the present disclosure. For persons having ordinary skills in the art, a certain amount of variations, changes and/or modifications may be deducted under the guidance of the present disclosure. Those variations, changes and/or modifications do not depart from the scope of the present disclosure.

As shown in FIG. 1, a suitcase may include a suitcase body 1, a first support mechanism 2, and a second support mechanism 3.

In some embodiments, the first support mechanism 2 and the second support mechanism 3 may be oppositely configured on a rear surface of the suitcase body 1. For example, the first support mechanism 2 may be configured on an upper part of the rear surface of the suitcase body 1, and the second support mechanism 3 may be configured on a lower part of the rear surface of the suitcase body 1. As another example, the first support mechanism 2 may be configured on a left part of the rear surface of the suitcase body 1, and the second support mechanism 3 may be configured on a right part of the rear surface of the suitcase body 1.

In some embodiments, the first support mechanism 2 may be movable on the suitcase body 1 to a first position to form a first leg of the suitcase. The second support mechanism 3 may be movable on the suitcase body 1 to a third position to form a second leg of the suitcase. When the first support mechanism 2 is in the first position and the second support mechanism 3 is in the third position, the first support mechanism 2 and the second support mechanism 3 may support the suitcase body 1. In this arrangement, when the suitcase is placed on the ground, the suitcase body 1, the first support mechanism 2, and the second support mechanism 3 may form a table structure. Accordingly, the suitcase may include a platform having a function of the table.

In some embodiments, the first support mechanism 2 may be movable on the suitcase body 1 to a second position to form a drawbar. Accordingly, the suitcase may have a function of an existing trolley suitcase.

In some embodiments, the first support mechanism 2 may be rotatably configured on the rear surface of the suitcase body 1 via at least one first connection limit mechanism 4. The first connection limit mechanism 4 may be configured to allow the first support mechanism 2 to be rotated to the first position or the second position.

In some embodiments, the first connection limit mechanism 4 may include a rotating bracket 43 and a fixed bracket 44. In some embodiments, as shown in FIG. 2, the rotating bracket 43 may include two plates 431 and a bottom plate 432. The two plates 431 may be oppositely configured on the bottom plate 432, such that the rotating bracket 43 may be of a U-shape. In some embodiments, the rotating bracket 43 may be integrally molded by bending, stamping, casting, or the like. In some embodiments, each of the two plates 431 may be a single component, and the bottom plate 432 may also be a single component. The two plates 431 and the bottom plate 432 may form the U-shaped rotating bracket 43 by welding, riveting, screwing, or the like.

In some embodiments, one or more first curved parts 4311 may be formed on the rotating bracket 43. For example, the first curved part 4311 may be formed on each of the two plates 431 of the rotating bracket 43. In some embodiments, one or more second limit structures 41 and a third limit structure 42 may be configured on the first curved part 4311. The second limit structure 41 may be an arcuate notch, or the like. The third limit structure 42 may be an arcuate notch, an arcuate bulge, or the like.

In some embodiments, a first pin hole 4312 and a first hinge hole 4313 may be configured on each of the two plates 431 of the rotating bracket 43, respectively. The position of the first pin hole 4312 configured on the each of the two plates 431 may correspond to each other. The position of the first hinge hole 4313 configured on the each of the two plates 431 may correspond to each other. In some embodiments, a first hanging hole 4321 may be formed on the bottom plate 432.

In some embodiments, the fixed bracket 44 may be of a U-shape, as shown in FIG. 3. The fixed bracket 44 may be fixed to the rear surface of the suitcase body 1. In some embodiments, the fixed bracket 44 may include a back plate 442 and two side plates 441. The two side plates 441 may be oppositely configured on the back plate 442. In some embodiments, the back plate 442 and the two side plates 441 may be integrally molded by bending, stamping, casting, or the like. In some embodiments, the back plate 442 may be a single component, and each of the two side plates 441 may also be a single component. The back plate 442 and the two side plates 441 may form the U-shaped fixed bracket 44 by welding, riveting, screwing, or the like.

In some embodiments, a second pin hole 4411 may be configured on each of the two side plates 441 of the fixed bracket 44. The position of the second pin hole 4411 configured on each of the two side plates 441 may correspond to each other. In some embodiments, a second hanging hole 4431 may be configured on a raised portion 443 of the fixed bracket 44. In some embodiments, a mounting hole 444 may be configured on the back plate 442 to allow the fixed bracket 44 to be fixed to the suitcase body 1 via a threaded connection (e.g., a screw connection, a bolt connection), a riveted connection, or the like. In some embodiments, the fixed bracket 44 may be fixed to the suitcase body 1 by welding, or the like.

In some embodiments, the rotating bracket 43 may be rotatably connected to the fixed bracket 44 via a hinge assembly. For example, as shown in FIG. 4 and FIG. 5, the rotating bracket 43 may be rotatably connected to the fixed bracket 44 via a first pin 445. Specifically, the rotating bracket 43 may be engaged in a U-shaped groove of the fixed bracket 44. Each of the first pin holes 4312 of the two plates 431 of the rotating bracket 43 may correspond to each of the second pin holes 4411 of the two side plates of the fixed bracket 44, respectively. The first pin 445 may pass through the first pin hole 4312 and the second pin hole 4411 to form a hinged connection structure, such that the rotating bracket 43 may be rotatably connected to the fixed bracket 44.

In some embodiments, the first connection limit mechanism 4 may further include an elastic connector 45. In some embodiments, the elastic connector 45 may be a spring, a shrapnel, or the like. In some embodiments, a first end of the elastic connector 45 may be connected to the rotating bracket 43, and a second end of the elastic connector 45 may be connected to the fixed bracket 44. For example, the first end of the elastic connector 45 may be connected to the first hanging hole 4321 on the bottom plate 432 of the rotating bracket 43, and the second end of the elastic connector 45 may be connected to the second hanging hole 4431 on the raised portion of the back plate 442 of the fixed bracket 44. As shown in FIGS. 16 and 18, the first support mechanism 2, the rotating bracket 43, and the fixed bracket 44 may form a stable triangle of forces in a mounted state. In addition, the force generated by the elastic connector 45 may help the first support mechanism 2 to be rotated and unfolded to the first position and the second position more easily. The force generated by the elastic connector 45 may also help the first support mechanism 2 to be rotated back to a folded state more easily.

In some embodiments, the first end of the elastic connector 45 may be connected to the first support mechanism 2, and the second end of the elastic connector 45 may be connected to the rear surface of the suitcase body 1 (shown in FIGS. 30 and 31).

In some embodiments, the first connection limit mechanism 4 may further include a connection limit base 46. The connection limit base 46 may be fixed on the rear surface of the suitcase body 1. In some embodiments, the connection limit base 46 may be fixed on the rear surface of the suitcase body 1 via a threaded connection (e.g., a screw connection, a bolt connection), a riveting method, a welding method, or the like. In some embodiments, as shown in FIG. 6 and FIG. 7, the connection limit base 46 may include two plates 461 and a bottom plate 462. The two plates 461 may be oppositely configured on the bottom plate 462, such that the connection limit base 46 may be of a U-shape. In some embodiments, the two plates 461 and the bottom plate 462 may be integrally molded by bending, stamping, casting, or the like. In some embodiments, each of the two plates 461 may be a single component, and the bottom plate 462 may also be a single component. The two plates 461 and the bottom plate 462 may form the U-shaped connection limit base 46 by welding, riveting, screwing, or the like.

In some embodiments, a second curved part 4611 may be formed on the connection limit base 46. For example, the second curved part 4611 may be formed on each of the two plates 461 of the connection limit base 46. The one or more second limit structures 41 and the third limit structure 42 may be configured on the second curved part 4611. In some embodiments, the second limit structure 41 may be an arcuate notch, or the like. The third limit structure 42 may be an arcuate notch, an arcuate bulge, or the like. A third hinge hole 4612 may be formed on the each of the two plates 461. The position of the third hinge hole 4612 on one of the two plates 461 may correspond to the position of the third hinge hole 4612 on the other one of the two plates 461, such that the connection limit base 46 may form a hinge base.

In some embodiments, a fourth limit structure 47 may be configured on the second curved part 4611. In some embodiments, the fourth limit structure 47 may be a notch, or the like. The first limit structure 21 may be engaged with the fourth limit structure 47 that is configured to maintain the first support mechanism 2 in a folded state.

In some embodiments, a first limit structure 21 may be configured on the first support mechanism 2. The first limit structure 21 may be configured to cooperate with the second limit structure 41 and the third limit structure 42 to allow the first support mechanism 2 to be rotated to the first position or the second position. In some embodiments, the first limit structure 21 may be a columnar protrusion, a limit axis, or the like, as shown in FIG. 4 and FIG. 5. In some embodiment, the first support mechanism 2 may include a first rod 22. The first limit structure 21, a second hinge hole 221, and a gap 222 may be configured on a first end of the first rod 22. The first end of the first rod 22 may be rotatably attached to the rear surface of the suitcase body 1 via the first connection limit mechanism 4. For example, as shown in FIG. 4 and FIG. 5, the first end of the first rod 22 connected to the first limit structure 21 may be inserted in the U-shaped groove of the rotating bracket 43. The second hinge hole 221 on the first rod 22 may be aligned with the first hinge hole 4313 on the rotating bracket 43. The second pin 433 may pass through the first hinge hole 4313 and the second hinge hole 221 to form a hinged connection structure. As another example, as shown in FIG. 19 and FIG. 20, the first end of the first rod 22 connected to the first limit structure 21 may be inserted in the U-shaped groove of the connection limit base 46. The second hinge hole 221 on the first rod 22 may be aligned with the third hinge hole 4612 on the connection limit base 46. The second pin 433 may pass through the second hinge hole 221 and the third hinge hole 4612 to form the hinged connection structure. A second end of the first rod 22 may be connected to a handle 23.

In some embodiment, the first support mechanism 2 may further include a second rod 24. The second rod 24 may have a same structure as the first rod 22. The first limit structure 21 may be configured on a first end of the second rod 24. The first end of the second rod 24 may be rotatably connected to another first connection limit mechanism 4. A second end of the second rod 24 may be connected to the handle 23, such that the first rod 22, the handle 23, and the second rod 24 may be of a U-shape, as shown in FIG. 8. The connection between the second rod 24 and the first connection limit mechanism 4 may be the same as or similar to the connection between the first rod 22 and the first connection limit mechanism 4, as shown in FIG. 4, FIG. 5, FIG. 19, and FIG. 20, the descriptions of which are not be repeated here.

In some embodiments, at least one of the first rod 22 and the second rod 24 may be a retractable rod, as shown in FIG. 8 and FIG. 10. In some embodiments, the first rod 22 and the second rod 24 may be retractable rods of the same structure. For example, the first rod 22 (or the second rod 24) may include a casing 281 and a retractable tube 282. The number (or count) of the retractable tubes 282 may be one, two, three, or more. When there is one retractable tube 282, the retractable tube 282 may be retractably inserted into the casing 281. When there are a plurality of retractable tubes 282, some of the plurality of retractable tubes 282 may be retractably inserted into an outermost retractable tube 282. The outermost retractable tube 282 may then be retractably inserted into the casing 281. In some embodiments, a button 26, a transmission part, and a buckle structure 27 may be configured on a U-shaped drawbar including the first rods 22 and the second rod 24. In an extended state, the casing 281 and the retractable tube 282 may be fixed via the buckle structure 27. In a contraction state, the button 26 may be pushed to release an engagement state of the buckle structure 27 via the transmission part, and the retractable tube 282 may be contracted in the casing 281.

In some embodiment, the first support mechanism 2 may further include a first reinforcing rod 25. The first reinforcing rod 25 may be configured between the first rod 22 and the second rod 24. The first reinforcing rod 25, the first rod 22, and the second rod 24 may be of an H-shape, which may increase the structural strength and stability of the first support mechanism 2.

In some embodiments, the first support mechanism 2 may be a U-shaped unitary tube, as shown in FIG. 9. The first limit structure 21, the second hinge hole 221, and the gap 222 may be configured on each of two ends of the U-shaped tube, respectively. The connection between the first support mechanism 2 and the first connection limit mechanism 4 may be the same as that of the first rod 22 and the first connection limit mechanism 4, the descriptions of which are not be repeated here.

In some embodiments, as shown in FIG. 27, the first limit structure 21 may be retractably configured on the first support mechanism 2. In some embodiments, a control component 251 may be configured on the first support mechanism 2. The control component 251 may be connected to the first limit structure 21 via a gear that is configured to allow the control component 251 to control extension or retraction of the first limit structure 21. In some embodiments, The portion of the first limit structure 21 extending beyond the casing 281 may be configured to cooperate with the second limit structure and/or the third limit structure. When the first limit structure 21 is required to be disengaged from the second limit structure and the third limit structure, the first limit structure 21 may be contracted in the casing 281 only by pressing the control component 251, which may make the first support mechanism 2 to be rotated on the first connection limit mechanism 4 more easily, and facilitate the unfolding and folding of the first support mechanism 2.

In some embodiments, the second support mechanism 3 may be rotatably configured on the rear surface of the suitcase body 1 via at least one second connection limit mechanism 5. The second connection limit mechanism 5 may be configured to allow the second support mechanism 3 to be rotated to the third position. In some embodiments, the third limit structure 42 may be configured on each of the one or more second connection limit mechanisms 5. In some embodiments, the structure of the second support mechanism 3 may be the same as or similar to the structure of the first support mechanism 2. In some embodiments, as shown in FIG. 11, the second support mechanism 3 may include a first support rod 31 and a second support rod 32. In some embodiments, at least one of the first support rod 31 and the second support rod 32 may be a unitary tube. In some embodiments, at least one of the first support rod 31 and the second support rod 32 may be a retractable rod.

In some embodiments, a fifth limit structure 33 may be configured on each of the first support rod 31 and the second support rod 32, respectively. For example, the fifth limit structure 33 may be configured on each of a first end of the first support rod 31 and a first end of the second support rod 32, respectively. The fifth limit structures 33 may be configured to cooperate with the one or more second limit structures 41 and the third limit structures 42 configured on the second connection limit mechanisms 5 to allow the second support mechanism 3 to be rotated to the third position via the second connection limit mechanisms 5. In some embodiments, the fifth limit structure 33 may be a columnar protrusion, a limit axis, or the like. Similar to the first rod 22 and the second rod 24, the second hinge hole 221 and the gap 222 may be configured on each of the first end of the first support rod 31 and the first end of the second support rod 32, respectively.

In some embodiment, the second support mechanism 3 may further include a second reinforcing rod 34. The second reinforcing rod 34 may be disposed between the first support rod 31 and the second support rod 32. The first support rod 31, the second support rod 32, and the second reinforcing rod 34 may be of an H-shape, which may increase the structural strength and stability of the second support mechanism 3.

In some embodiments, the first support mechanism 2, the second support mechanism 3, and the suitcase body 1 may form a table structure. For example, the first support mechanism 2 may be rotatably configured on the rear surface of the suitcase body 1 via the one or more first connection limit mechanisms 4, to allow the first support mechanism 2 to be rotated to the first position. Accordingly, the first support mechanism 2 may form the first leg of the suitcase. The second support mechanism 3 may be rotatably configured on the rear surface of the suitcase body 1 via the one or more second connection limit mechanisms 5, to allow the second support mechanism 3 to be rotated to the second position. Accordingly, the second support mechanism 3 may form the second leg of the suitcase. The second support mechanism 3 and the first support mechanism 2 may be configured oppositely on the rear surface of the suitcase body 1, to allow the first support mechanism 2 and the second support mechanism 3 to be rotated and unfolded in opposite directions. In an unfolded state, as shown in FIGS. 12, 13, and 14, the second support mechanism 3 and the suitcase body 1 may form the table structure. In some embodiments, the height of the first support mechanism 2 may be the same as the height of the second support mechanism 3. The first support mechanism 2 and the second support mechanism 3 may be configured on a same plane on the rear surface of the suitcase body 1. In some embodiments, the height of the first support mechanism 2 may be different from the height of the second support mechanism 3. The first support mechanism 2 and the second support mechanism 3 may be configured on different planes on the rear surface of the suitcase body 1. For example, the first support mechanism 2 may be configured on a first plane on the rear surface of the suitcase body 1, and the second support mechanism 3 may be configured on a second plane on the rear surface of the suitcase body 1. The difference between the height of the first plane and the height of the second plane may be the same as the difference between the height of the first support mechanism 2 and the height of the second support mechanism 3. Therefore, when the suitcase is unfolded into the table structure on a flat surface, the suitcase may maintain horizontal. In some embodiments, a cover of the suitcase body 1 may be made of light and thin material, such that when the cover is in an open state (as shown in FIG. 12), the first support mechanism 2 and the second support mechanism 3 may support the suitcase body 1 to be stable.

In some embodiments, the first support mechanism 2 may be rotatably configured on the rear surface of the suitcase body 1 via the one or more first connection limit mechanism 4. In some embodiments, the first support mechanism 2 may be rotatably connected to the rotating bracket 43 of the first connection limit mechanism 4 via a hinge assembly. For example, the first end of the first rod 22 connected to the first limit structure 21 may be rotatably connected to the rotating bracket 43 of the first connection limit mechanism 4 via the second pin 433, as shown in FIG. 4, FIG. 5, FIG. 15, and FIG. 16. Similarly, the first end of the second rod 24 may be rotatably connected to the rotating bracket 43 of another first connection limit mechanism 4 via another second pin 433. The second end of the first rod 22 may be engaged in the U-shaped groove of the rotating bracket 43 of the first connection limit mechanism 4. The second hinge hole 221 on the first rod 22 may correspond to the first hinge hole 4313 on the rotating bracket 43 of the first connection limit mechanism 4. The second pin 433 may pass through the second hinge hole 221 and the first hinge hole 4313 to form the hinge assembly. Similarly, the second rod 24 may be rotatably connected to the rotating bracket 43 of another first connection limit mechanism 4 in a same manner.

As shown in FIGS. 17 and 18, in a folded state, the first limit structure 21 configured on the first support mechanism 2 may be engaged with the second limit structure 41 configured on the first connection limit mechanism 4. Therefore, the first support mechanism 2 may be close to the rear surface of the suitcase body 1.

During the rotation of the first support mechanism 2 to the first position, the first limit structure 21 may remain engaged in the second limit structure 41, and the rotating bracket 43 may be rotated by the first pin 445 around the fixed bracket 44 in a direction away from the back of the suitcase body 1 until the rib 4314 on the rotating bracket 43 is blocked by the back plate 442 in the fixed bracket 44. Therefore, the first support mechanism 2 may maintain at the first position, and form the first leg of the suitcase, as shown in FIG. 15, and FIG. 16.

In addition, since the first end of the elastic connector 45 may be connected to the first hanging hole 4321 on the rotating bracket 43, and the second end of the elastic connector 45 may be connected to the second hanging hole 4431 on the raised portion of the fixed bracket 44, in a mounted state, the first support mechanism 2, the rotating bracket 43, and the fixed bracket 44 may form the stable triangle of forces. For example, as shown in FIG. 16 and FIG. 18, when the first support mechanism 2 is in the first position in the folded state, the elastic connector 45 may be in a stretched or compressed state. A first force point A may be formed at a connecting point between the elastic connector 45 and the fixed bracket 44. A second force point B may be formed at a connecting point between the elastic connector 45 and the rotating bracket 43. A third force point C may be formed at a connecting point between the rotating bracket 43 and the fixed bracket 44. The first force point A, the second force point B, and the third force point C may be arranged as a triangle, such that the first support mechanism 2, the rotating bracket 43, and the fixed bracket 44 may form a stable triangle of forces (shown as dotted lines in FIG. 16 and FIG. 18). Therefore, the first support mechanism 2 may be stabilized in the first position in the folded state. In addition, the force generated by the elastic connector 45 may help the first support mechanism 2 to be rotated and unfolded to the first position and the second position more easily. The force generated by the elastic connector 45 may also help the first support mechanism 2 to be rotated back to the folded state more easily. Accordingly, the first support mechanism 2, the rotating bracket 43, and the fixed bracket 44 may form the stable structure (e.g., a bistable structure) in the folded state and the unfolded state.

In some embodiments, the first support mechanism 2 may be any one of the first support mechanisms shown in FIG. 8, FIG. 9, and FIG. 10. The first connection limit mechanism 4 may be any one of the connection limit bases 46 shown in FIG. 6 and FIG. 7. For example, the first support mechanism may be a U-shaped drawbar as shown in the FIG. 8, and the first connection limit mechanism 4 may use the connection limit base 46. More descriptions may be found below.

In some embodiments, the first support mechanism 2 may be rotatably connected to the rear surface of the suitcase body 1 via the connection limit base 46 of the first connection limit mechanism 4. In some embodiments, the first support mechanism 2 may be rotatably connected to the connection limit base 46 via a hinge assembly. For example, as shown in FIG. 6, FIG. 7, and FIG. 19, the bottom plate 462 of the connection limit base 46 may be fixed on the suitcase body 1. The first rod 22 may be rotatably connected to the connection limit base 46. Specifically, the first end of the first rod 22 connected to the first limit structure 21 may be rotatably connected to the connection limit base 46 via the second pin 433. The second end of the first rod 22 may be inserted into the U-shaped groove of the connection limit base 46. The second hinge hole 221 of the first rod 22 may correspond to the third hinge holes 4612 of the two plates 461 of the connection limit base 46. The second pin 433 may pass through the second hinge hole 221 and the third hinge holes 4612 to form a hinge assembly. Similarly, the first end of the second rod 24 may be rotatably connected to another connection limit base 46 via another second pin 433.

As shown in FIG. 19, the first limit structure 21 configured on the first support mechanism 2 may cooperate with the second limit structure 41 configured on the first connection limit mechanism 4, to allow the first support mechanism 2 to be fixed in the first position. Therefore, the first support mechanism 2 may form the first leg of the suitcase.

As shown in FIG. 20, in a folded state, the first limit structure 21 configured on the first support mechanism 2 may be engaged with the second limit structure 41 configured on the first connection limit mechanism 4, such that the first support mechanism 2 may be close to the rear surface of the suitcase body 1.

During the rotation of the first support mechanism 2 to the first position, the first support mechanism 2 may be rotated about the connection limit base 46 via the second pin 433 in a direction away from the back of the suitcase body 1. When the first support mechanism 2 is rotated to the first position, the first limit structure 21 configured on the first support mechanism 2 may be engaged in the second limit structure 41 configured on the first connection limit mechanism 4. Therefore, the first support mechanism 2 may maintain at the first position, and form the first leg of the suitcase, as shown in FIG. 19. For example, the second limit structure 41 may be a pin that traverses in a retractable rod in the first support mechanism 2, and two ends of the pin may protrude from two ends of the retractable rod to form a convex structure. In some embodiments, the first limit structure 21 may have an arcuate notch structure. When the first support mechanism 2 is rotated to the first position, a portion of the pin that protrudes from the end of the retractable rod may be engaged in the arcuate notch. Therefore, the first support mechanism 2 may be fixed in the first position, and form the first leg of the suitcase.

In some embodiments, the structure of the second support mechanism 3 may be the same as or similar to the structure of the first support mechanism 2. The structure of the second connection limit mechanism 5 may be the same as or similar to the structure of the first connection limit mechanism 4. In this situation, the connection between the second support mechanism 3 and the second connection limit mechanism 5 may be the same as or similar to the connection between the first support mechanism 2 and the first connection limit mechanism 4. The folding and unfolding processes of the second support mechanism 3 and the second connection limit mechanism 5 may be the same as or similar to those of the first support mechanism 2 and the first connection limit mechanism 4, respectively.

In some embodiments, the second support mechanism 3 may have a structure shown in FIG. 11. The second support mechanism 3 may be rotatably connected to the one or more second connection limit mechanisms 5 via a hinge assembly. For example, the first end of the first support rod 31 connected to the fifth limit structure 33 may be rotatably connected to the second connection limit mechanism 5 via the second pin 433. The first end of the second support rod 32 may be rotatably connected to another second connection limit mechanism 5 via another second pin 433.

In addition, the process of the second support mechanism 3 being folded to the third position via the second connection limit mechanism 5 to form a second leg of the suitcase may be the same as or similar to the process of the first support mechanism 2 being folded to the first position via the first connection limit mechanism 4 to form the first leg of the suitcase, the descriptions of which are not be repeated here.

In some embodiments, as shown in FIG.13, in an unfolded state, when the first support mechanism 2 is in the first position, the first support mechanism 2 may form an angle α with respect to the rear surface of the suitcase body 1.

In some embodiments, the number (or count) of the second limit structures 41 configured on the first connection limit mechanism 4 may be more than one, such as 2, 3, 4, 5, 6, or more, such that the first limit structure 21 of the first support mechanism 2 may be engaged with the second limit structures 41 at different positions on the first connection limit mechanism 4. Therefore, the first support mechanism 2 may be fixed at different angles. That is, when the first support mechanism 2 is in the first position, the angle α of the first support mechanism 2 with respect to the rear surface of the suitcase body 1 may be adjusted by engaging the first limit structure 21 with the second limit structures 41 at different positions on the first connection limit mechanism 4.

In some embodiments, as shown in FIG. 13, in the unfolded state, when the second support mechanism 3 is in the third position, the second support mechanism 3 may form an angle β with respect to the rear surface of the suitcase body 1. In some embodiments, the angle α may be the same as or different from the angle β. When the angle α and/or the angle β change, the height of the suitcase body 1 may be changed.

In some embodiments, the number (or count) of the second limit structures 41 configured on the second connection limit mechanism 5 may be more than one, such as 2, 3, 4, 5, 6, or more, such that the fifth limit structure 33 of the second support mechanism 3 may be engaged with the second limit structures 41 at different positions on the second connection limit mechanism 5. Therefore, the second support mechanism 3 may be fixed at different angles. That is, when the second support mechanism 3 is in the third position, the angle β of the second support mechanism 3 with respect to the rear surface of the suitcase body 1 may be adjusted by engaging the fifth limit structure 33 with the second limit structures 41 at different positions on the second connection limit mechanism 5.

In some embodiments, α may be the same as β, such that the suitcase body 1 supported by the first support mechanism 2 and the second support mechanism 3 may maintain horizontal when the suitcase is placed on a horizontal surface. In some embodiments, a may be different from 13, such that the suitcase body 1 supported by the first support mechanism 2 and the first support mechanism 2 may maintain horizontal when the suitcase is placed on an inclined surface.

In some embodiments, the first support mechanism 2 may form the drawbar of the suitcase. For example, the first support mechanism 2 may be rotatably configured on the rear surface of the suitcase body 1 via the first connection limit mechanism 4, such that the first support mechanism 2 may be movable on the suitcase body 1 to the second position to form the drawer of the suitcase.

In some embodiments, as shown in FIG. 17, FIG. 18, and FIG. 24, after the first support mechanism 2 is rotated to the first position, the first limit structure 21 may slide out of the second limit structure 41 under an action of a larger external force, and the first support mechanism 2 may continue to be rotated about the second pin 433. When the first limit structure 21 is rotated to the third limit structure 42, the first limit structure 21 may be engaged in the third limit structure 42. Accordingly, the first support mechanism 2 may be fixed in the second position to form the drawbar of the suitcase, as shown in FIG. 22, and FIG. 24. In some embodiments, the first support mechanism 2 may be rotated from the folded state to the first position via the first pin 445. The first support mechanism 2 may be rotated from the first position to the second position via the second pin 433.

In some embodiments, as shown in FIG. 19, FIG. 20, and FIG. 25, after the first support mechanism 2 is rotated to the first position, the first limit structure 21 may slide out of the second limit structure 41 of the connection limit base 46 under an action of a larger external force (or release the the second limit structure 41 via pressing a switch device), and the first support mechanism 2 may continue to be rotated about the first pin 445. When the second limit structure 41 is rotated to the third limit structure 42 of the connection limit base 46, the second limit structure 41 may be engaged in the third limit structure 42. Accordingly, the first support mechanism 2 may be fixed in the second position to form the drawbar of the suitcase, as shown in FIG. 19, FIG. 20, and FIG. 25.

In some embodiments, a mounting slot 10 may be configured on the rear surface of the suitcase body 1, as shown in FIG. 14. The first connection limit mechanism 4 and the second connection limit mechanism 5 may be configured in the mounting slot 10. Therefore, in the folded state, the first support mechanism 2, the second support mechanism 3 may be accommodated in the mounting slot 10.

In some embodiments, a fastener 101 may be configured in the mounting slot 10. In some embodiments, the fastener 101 may be made of plastic or metal slice. In the folded state, the first support mechanism 2 and the second support mechanism 3 may be engaged in the fastener101 to prevent the first support mechanism 2 and the second support mechanism 3 from loosening. In the unfolded state, the first support mechanism 2 and the second support mechanism 3 may be taken out from the fastener 101 under an action of an external force.

In some embodiments, the suitcase may further include at least one platform. The platform may be configured on the suitcase body 1 or in the suitcase body 1 in a foldable or extendable manner. For example, as shown in FIG. 12, one or more push-pull boards 61 may be configured on side surfaces of the suitcase body 1. The push-pull board 61 may be accommodated in the suitcase body 1. When needed, the push-pull board 61 may be pulled out of the suitcase body 1 to form the platform for placing items. The push-pull board 61 may be pushed back into the suitcase body 1 when it is not needed. As another example, as shown in FIG. 12, a folding board 62 may be configured in the suitcase body 1. When needed, a first side of the folding board 62 may be rotatably connected to a first side of the suitcase body 1 via a hinged connection structure or a buckle connection structure, and a second side of the folding board 62 may be connected to a second side of the suitcase body 1 via a buckle connection structure 621. Therefore, a platform may be formed in the suitcase body 1 for placing items. The buckle connection structure 621 may be unwound and the folding board 62 may be folded into the suitcase body 1 when it is not needed. As still another example, as shown in FIG. 26, an accommodation space 63 and a cover 64 may be configured on an upper part of the rear surface of the suitcase body 1. The cover 64 may be rotatably connected to the suitcase body 1 via a hinged connection structure, a rotating shaft, or the like. When the cover 64 is rotationally unfolded, a platform may be formed on the rear surface of the suitcase body 1. The platform may be used to place items such as cups. When the cover 64 is rotationally folded, the cover 64 and the accommodation space 63 may form a storage chamber. The storage chamber may be used to accommodate items such as cups.

In some embodiments, the suitcase may also include at least one rolling component 7, as shown in FIG. 1. The rolling component 7 may be configured on a bottom surface of the suitcase body 1. The rolling component 7 may be a roller, a universal wheel, a ladder wheel, or the like, with or without a locking function. For example, the rolling component 7 may include a brake to stop the suitcase from moving when the brake is activated. The number (or count) of the rolling components 7 may be one, two, three, four, or more. When the number (or count) of the rolling components 7 is one, the rolling component 7 may be installed in the middle of a boundary between the bottom surface and the rear surface of the suitcase body 1. When the number (or count) of the rolling component 7 is two, the rolling components 7 may be installed at two ends of the boundary between the bottom surface and the rear surface of the suitcase body 1. When the number (or count) of the rolling components 7 is three, the rolling components 7 may be installed on the bottom surface of the suitcase body 1 in a triangle arrangement. When the number (or count) of rolling components 7 is four, the rolling components 7 may be installed on the bottom surface of the suitcase body in a square or a rectangular arrangement.

FIGS. 28-34 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure. As shown in FIGS. 28-34, a suitcase 200 may include a suitcase body 200-1, a drawbar 200-2, a first leg 200-3, and a second leg 200-4. In some embodiments, the first leg 200-3 and the second leg 200-4 may be independent of the drawbar 200-2 of the suitcase 200. The first leg 200-3 and the second leg 200-4 may be retractable with respect to the suitcase body 200-1, as shown in FIGS. 28 and 29. The first leg 200-3 and the second leg 200-4 may be foldable with respect to the suitcase body 200-1, as shown in FIGS. 28, 32.

In some embodiments, the first leg 200-3 and the second leg 200-4 may be oppositely configured on a rear surface of the suitcase body 200-1. FIGS. 28-29 are schematic diagrams of exemplary legs in a folded state according to some embodiments of the present disclosure. FIG. 32 is a schematic diagram of exemplary legs in a support state according to some embodiments of the present disclosure. The first leg 200-3 and the second leg 200-4 may be switched between the folded state and the support state under an action of an external force. When the first leg 200-3 and the second leg 200-4 are in the support state, the first leg 200-3 and the second leg 200-4 may support the suitcase body 200-1, so that the suitcase body 200-1 may maintain horizontal when the suitcase 200 is placed on a surface. Accordingly, the suitcase 200 may have a function of a table.

In some embodiments, as shown in FIGS. 30-31, the first leg 200-3 may be rotatably connected to the suitcase body 200-1. For example, the first leg 200-3 may be rotatably connected to the suitcase body 200-1 via a hinge assembly. In some embodiments, an elastic connector 200-45 (e.g., a spring, a shrapnel) may be configured on a connection position of the first leg 200-3 and the suitcase body 200-1. A first end of the elastic connector 200-45 may be connected to the first leg 200-3, and a second end of the elastic connector 200-45 may be connected to the suitcase body 200-1. When the first leg 200-3 is in the folded state or the support state, the first leg 200-3 and the suitcase body 200-1 may form a stable triangle of forces. When the first leg 200-3 is in the folded state (as shown in FIG. 30) or the support state (as shown in FIG. 31), the elastic connector 200-45 may be in a stretched state or an original state. A connection point between the elastic connector 200-45 and the first leg 200-3 may form a first force point A. A connection point between the elastic connector 200-45 and the suitcase body 200-1 may form a second force point B. A third force point C may be formed at a shaft of the first leg 200-3. The first force point A, the second force point B, and the third force point C may be arranged in a triangle shape, so that the stable triangle of forces may be formed between the first leg 200-3 and the suitcase body 200-1 (shown as solid lines in FIGS. 30-31). Therefore, the first leg 200-3 may remain stable in the folded state and the support state. In addition, the forces generated by the elastic connector 200-45 may help the first leg 200-3 to be unfolded and folded more easily.

In some embodiments, as shown in FIGS. 33-34, the suitcase 200 may further include a charging interface 200-5, a switch 200-6, a storage space 200-7, a push-pull board 200-8, a leg switch 200-9, or the like, or any combination thereof. For example, the charging interface 200-5 may be a USB interface to facilitate a connection of a mobile device to a power source (e.g., a mobile power source) in the suitcase 200. In some embodiments, a cover may be configured on the charging interface 200-5 to prevent dust and rain from entering. The cover may be opened and closed by rotating, pressing, or the like. The switch 200-6 may control the opening or closing of the push-pull board 200-8. Specifically, the switch 200-6 may be engaged or disengaged from the push-pull board 200-8 by rotating, pressing, or the like. The push-pull board 200-8 may be rotated and unfolded from the suitcase 200 to form an extended platform for placing items. When the push-pull board 200-8 is not required, the push-pull board 200-8 may be folded. The storage space 200-7 may be configured between the push-pull board 200-8 and the surface of the suitcase body 200-1. The leg switch 200-9 may be configured below the rear surface of the suitcase 200. As shown in FIGS. 33-34, the leg switch 200-9 may be engaged or disengaged from a crossbar of the first leg 200-3 to lock the first leg 200-3 and the second leg 200-4 in the fold state or to allow the first leg 200-3 and the second leg 200-4 to be unfolded (e.g., unfolded to the support state) under the action of an external force (e.g., a human force).

FIGS. 35-37 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure. As shown in FIGS. 35-37, a suitcase 300 may include a suitcase body 300-1, a drawbar 300-2, a first leg 300-3, and a second leg 300-4. The drawbar 300-2 may be formed as a third leg of the suitcase 300. The first leg 300-3 and the second leg 300-4 may support the suitcase body 300-1. The first leg 300-3 and the second leg 300-4 may be foldable with respect to the suitcase body 300-1.

In some embodiments, the first leg 300-3 and the second leg 300-4 may be configured on a rear surface of the suitcase body 300-1, and opposite to the drawbar 300-2. The first leg 300-3 and the second leg 300-4 may be symmetrically disposed along a long axis of the rear surface of the suitcase body 300-1. In some embodiments, the drawbar 300-2, the first leg 300-3, and the second leg 300-4 may have a retractable structure. The drawbar 300-2, the first leg 300-3, and the second leg 300-4 may be independently stretched and folded. FIG. 35 is a schematic diagram of exemplary drawbar and legs in a folded state according to some embodiments of the present disclosure. FIG. 36 is a schematic diagram of an exemplary drawbar in an unfolded state according to some embodiments of the present disclosure. FIG. 37 is a schematic diagram of exemplary drawbar and legs in a support state according to some embodiments of the present disclosure. The drawbar 300-2, the first leg 300-3, and the second leg 300-4 may be switched between the folded state and the support state under an action of an external force, such as a human force. When the drawbar 300-2, the first leg 300-3, and the second leg 300-4 are in the support state, the drawbar 300-2, the first leg 300-3, and the second leg 300-4 may support the suitcase body 300-1, so that the suitcase body 300-1 may maintain horizontal when the suitcase 300 is placed on a surface. Accordingly, the suitcase 300 may have a function of a table.

FIGS. 38-40 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure. As shown in FIGS. 38-40, a suitcase 500 may include a suitcase body 500-1, a drawbar 500-2, a first leg 500-3, a second leg 500-4, a third leg 500-5, and a fourth leg 500-6. In some embodiments, the first leg 500-3, the second leg 500-4, the third leg 500-5, and the fourth leg 500-6 may be independent of the drawbar 500-2 of the suitcase 500. The first leg 500-3, the second leg 500-4, the third leg 500-5, and the fourth leg 500-6 may be retractable with respect to the suitcase body 500-1. For example, the first leg 500-3, the second leg 500-4, the third leg 500-5, and the fourth leg 500-6 may be configured at four corners of the suitcase 500, and may extend from a rear surface of the suitcase 500.

FIG. 38 is a schematic diagram of exemplary drawbar and legs in a folded state according to some embodiments of the present disclosure. FIG. 39 is a schematic diagram of an exemplary drawbar in an unfolded state according to some embodiments of the present disclosure. FIG. 40 is a schematic diagram of exemplary legs in a support state according to some embodiments of the present disclosure. The first leg 500-3, the second leg 500-4, the third leg 500-5, and the fourth leg 500-6 may be extended and retracted under an action of an external force. When the first leg 500-3, the second leg 500-4, the third leg 500-5, and the fourth leg 500-6 are in the support state, the first leg 500-3, the second leg 500-4, the third leg 500-5, and the fourth leg 500-6 may support the suitcase body 500-1, so that the suitcase 500 may maintain horizontal when the suitcase is placed on a surface. Accordingly, the suitcase 500 may have a function of a table. In some embodiments, the first leg 500-3, the second leg 500-4, the third leg 500-5, and the fourth leg 500-6 may be extended and retracted independently, and may be fixed at different lengths. Therefore, the suitcase body 500-1 may be supported at different heights. Accordingly, the suitcase body 500-1 may maintain horizontal when the suitcase 500 is placed on an inclined surface or an unflat surface.

FIGS. 41-43 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure. As shown in FIGS. 41-43, a suitcase 600 may include a suitcase body 600-1, a drawbar 600-2, a first leg 600-3, and a second leg 600-4. The drawbar 600-2 may be used to form a third leg. The first leg 600-3, the second leg 600-4, and the third leg may support the suitcase body 600-1. In some embodiments, the first leg 600-3 and the second leg 600-4 may be independent of the drawbar 600-2 of the suitcase 600. The first leg 600-3 and the second leg 600-4 may be retractable with respect to the suitcase body 600-1.

In some embodiments, the first leg 600-3 and the second leg 600-4 may be configured at two corners of a rear surface of the suitcase 600, and opposite to the drawbar 600-2. The drawbar 600-2, the first leg 600-3, and the second leg 600-4 may be retracted and/or folded independently. In some embodiments, the drawbar 600-2, the first leg 600-3, and the second leg 600-4 may have a retractable structure. FIG. 41 is a schematic diagram of exemplary drawbar and legs in a folded state according to some embodiments of the present disclosure. FIG. 42 is a schematic diagram of an exemplary drawbar in an unfolded state according to some embodiments of the present disclosure. FIG. 43 is a schematic diagram of exemplary drawbar and legs in a support state according to some embodiments of the present disclosure. The drawbar 600-2, the first leg 600-3, and the second leg 600-4 may be switched between the folded state (e.g., legs are retracted into the suitcase body 600-1) and the support state under an action of an external force. When the drawbar 600-2, the first leg 600-3, and the second leg 600-4 are in the support state, the drawbar 600-2, the first leg 600-3, and the second leg 600-4 may support the suitcase body 600-1, so that the suitcase body 600-1 may maintain horizontal when the suitcase 600 is placed on a surface. Accordingly, the suitcase 600 may have a function of a table.

FIGS. 44-46 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure. As shown in FIGS. 44-46, a suitcase 900 may include a suitcase body 900-1, a drawbar 900-2, a first support plate 900-3, and a second support plate 900-4. In some embodiments, the first support plate 900-3 and the second support plate 900-4 may be independent of the drawbar 900-2 of the suitcase 900. The first support plate 900-3 and the second support plate 900-4 may be foldable with respect to the suitcase body 900-1.

In some embodiments, the first support plate 900-3 and the second support plate 900-4 may be oppositely configured on a rear surface of the suitcase body 900-1. FIG. 44 is a schematic diagram of exemplary drawbar and support plates in a folded state according to some embodiments of the present disclosure. FIG. 45 is a schematic diagram of an exemplary drawbar in an unfolded state according to some embodiments of the present disclosure. FIG. 46 is a schematic diagram of exemplary support plates in a support state according to some embodiments of the present disclosure. The first support plate 900-3 and the second support plate 900-4 may be switched between the folded state and the support state under an action of an external force. When the first support plate 900-3 and the second support plate 900-4 are in the support state, the first support plate 900-3 and the second support plate 900-4 may support the suitcase body 900-1, so that the suitcase 900 may maintain horizontal when the suitcase 900 is placed on a surface. Accordingly, the suitcase 900 may have a function of a table. In some embodiments, the first support plate 900-3 and the second support plate 900-4 may have a flexible plate structure. For example, the first support plate 900-3 and the second support plate 900-4 may include two plates that are slidably connected to each other, respectively. In some embodiments, the first support plate 900-3 and the second support plate 900-4 may be extended and retracted independently, and may be fixed at different lengths. Therefore, the suitcase body 900-1 may be supported at different heights. The suitcase body 900-1 may maintain horizontal when the suitcase 900 is placed on an inclined surface or an unflat surface.

FIGS. 47-49 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure. As shown in FIGS. 47-49, a suitcase 1100 may include a suitcase body 1100-1, a drawbar 1100-2, a first leg 1100-3, and a second leg 1100-4. In some embodiments, the first leg 1100-3 and the second leg 1100-4 may be independent of the drawbar 1100-2 of the suitcase 1100. The first leg 1100-3 and the second leg 1100-4 may be foldable with respect to the suitcase body 1100-1. In some embodiments, the first leg 1100-3 and the second leg 1100-4 may include two adjacent and oppositely configured support columns, respectively. When the two support columns are unfolded, the two support columns may form stable legs by fixing the two support columns via a pin (e.g., a pin 1100-5). In some embodiments, an elastic connector (e.g., a torsion spring) may be configured between the support column and the suitcase body 1100-1. With the help of the elastic connector, the support column may cling to the suitcase body 1101-1 when not in use, and the support column may be folded more easily.

In some embodiments, the first leg 1100-3 and the second leg 1100-4 may be oppositely configured on a rear surface of the suitcase 1100. The first leg 1100-3 and the second leg 1100-4 may be unfolded and folded independently. FIG. 47 is a schematic diagram of exemplary drawbar and legs in a folded state according to some embodiments of the present disclosure. FIG. 48 is a schematic diagram of an exemplary drawbar in an unfolded state according to some embodiments of the present disclosure. FIG. 49 is a schematic diagram of exemplary legs in a support state according to some embodiments of the present disclosure. The first leg 1100-3 and the second leg 1100-4 may be switched between the folded state and the support state under an action of an external force. When the first leg 1100-3 and the second leg 1100-4 are in the support state, the first leg 1100-3 and the second leg 1100-4 may support the suitcase body 1100-1, so that the suitcase body 1100-1 may maintain horizontal when the suitcase 1100 is placed on a surface. Accordingly, the suitcase 1100 may have a function of a table.

FIGS. 50-53 are schematic diagrams of exemplary suitcases according to some embodiments of the present disclosure. As shown in FIGS. 50-53, a suitcase 1200 may include a suitcase body 1200-1 and a drawbar 1200-2. In some embodiments, the drawbar 1200-2 may be foldable with respect to the suitcase body 1200-1. In some embodiments, the drawbar 1200-2 may include a support frame 1200-3. In some embodiments, the support frame 1200-3 may be rotatably connected to the drawbar 1200-2. For example, the drawbar 1200-2 may be folded 90 degrees with respect to the suitcase body 1200-1 to be perpendicular to the rear surface of the suitcase 1200. The support frame 1200-3 may be rotated 90 degrees with respect to the drawbar 1200-2. In some embodiments, one or more support blocks 1200-4 may be configured on the support frame 1200-3. The support block 1200-4 may be unfolded in the support state to support the suitcase 1200 on the ground.

FIG. 50 is a schematic diagram of an exemplary drawbar in an original state according to some embodiments of the present disclosure. FIG. 51 is a schematic diagram of an exemplary drawbar in an unfolded state according to some embodiments of the present disclosure. FIG. 52 is a schematic diagram of an exemplary drawbar in a folded state according to some embodiments of the present disclosure. FIG. 53 is a schematic diagram of an exemplary drawbar in a support state according to some embodiments of the present disclosure. The drawbar 1200-2 may be switched between the original state and the support state under an action of an external force. When the drawbar 1200-2 and the support frame 1200-3 are in the support state, the drawbar 1200-2 and the support frame 1200-3 may support the suitcase body 1200-1, so that the suitcase body 1200-1 may maintain horizontal when the suitcase 1200 is placed on a surface. Accordingly, the suitcase 1200 may have a function of a table.

The beneficial effects of the embodiments in the present disclosure may include, but are not limited to:

Firstly, in the folded state, the first support mechanism 2 and the second support mechanism 3 may be folded to align with the rear surface of the suitcase body to save space. In the unfolded state, the first support mechanism 2 may be movable to the first position to form a first leg of the suitcase. The second support mechanism 3 may be movable to the third position to form a second leg of the suitcase. The suitcase body 1, the first support mechanism 2, and the second support mechanism 3 may form a table. Accordingly, the suitcase may include a platform having a function of the table. In addition, the first support mechanism 2 may be movable to the second position to form the drawbar of the suitcase. The suitcase according to some embodiments of the present disclosure may be transformed into the table while maintaining its storage function.

Furthermore, one or more platforms for placing items may be configured on or in the suitcase body 1 in a foldable or extendable manner. Accordingly, the suitcase may include multifunctional platforms.

Moreover, the suitcase according to some embodiments of the present disclosure may include a charging interface configured on the suitcase body. Accordingly, a mobile device may be connected to a power supply in the suitcase more conveniently.

Additionally, the suitcase according to some embodiments of the present disclosure may be supported at different heights, and may maintain horizontal when it is placed on an inclined surface or an uneven surface.

It should be noted that different embodiments may have different beneficial effects. The beneficial effects of an embodiment in the present disclosure may include any combination of the beneficial effects described above, or any other beneficial effects that may be obtained.

Having thus described the basic concepts, it may be rather apparent to those skilled in the art after reading this detailed disclosure that the foregoing detailed disclosure is intended to be presented by way of example only and is not limiting. Various alterations, improvements, and modifications may occur and are intended to those skilled in the art, though not expressly stated herein. These alterations, improvements, and modifications are intended to be suggested by this disclosure and are within the spirit and scope of the exemplary embodiments of this disclosure.

Moreover, certain terminology has been used to describe embodiments of the present disclosure. For example, the terms “one embodiment,” “an embodiment,” and/or “some embodiments” mean that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Therefore, it is emphasized and should be appreciated that two or more references to “an embodiment” or “one embodiment” or “an alternative embodiment” in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined as suitable in one or more embodiments of the present disclosure.

Furthermore, the recited order of processing elements or sequences, or the use of numbers, letters, or other designations, therefore, is not intended to limit the claimed processes and methods to any order except as may be specified in the claims. Although the above disclosure discusses through various examples what is currently considered to be a variety of useful embodiments of the disclosure, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover modifications and equivalent arrangements that are within the spirit and scope of the disclosed embodiments. For example, although the implementation of various components described above may be embodied in a hardware device, it may also be implemented as a software only solution, for example, an installation on an existing server or mobile device.

Similarly, it should be appreciated that in the foregoing description of embodiments of the present disclosure, various features are sometimes grouped in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the various inventive embodiments. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed subject matter requires more features than are expressly recited in each claim. Rather, inventive embodiments lie in less than all features of a single foregoing disclosed embodiment.

In some embodiments, the numbers expressing quantities or properties used to describe and claim certain embodiments of the application are to be understood as being modified in some instances by the term “about,” “approximate,” or “substantially.” For example, “about,” “approximate,” or “substantially” may indicate ±20% variation of the value it describes, unless otherwise stated. Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the application are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable.

Each of the patents, patent applications, publications of patent applications, and other material, such as articles, books, specifications, publications, documents, things, and/or the like, referenced herein is hereby incorporated herein by this reference in its entirety for all purposes, excepting any prosecution file history associated with same, any of same that is inconsistent with or in conflict with the present document, or any of same that may have a limiting affect as to the broadest scope of the claims now or later associated with the present document. By way of example, should there be any inconsistency or conflict between the description, definition, and/or the use of a term associated with any of the incorporated material and that associated with the present document, the description, definition, and/or the use of the term in the present document shall prevail.

In closing, it is to be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the application. Other modifications that may be employed may be within the scope of the application. Thus, by way of example, but not of limitation, alternative configurations of the embodiments of the application may be utilized in accordance with the teachings herein. Accordingly, embodiments of the present application are not limited to that precisely as shown and described.

Claims

1. A suitcase including a suitcase body and a support mechanism;

the support mechanism is configured to support the suitcase body; and

the support mechanism is retractable and/or foldable with respect to the suitcase body.

2. The suitcase of claim 1, wherein at least a portion of the support mechanism is configured as a drawbar of the suitcase.

3. The suitcase of claim 1, wherein the suitcase body maintains horizontal by support of the support mechanism when the suitcase is placed on a surface.

4. The suitcase of claim 1, wherein:

the support mechanism includes a first support mechanism and a second support mechanism;

the first support mechanism and the second support mechanism are oppositely configured on a rear surface of the suitcase body;

the first support mechanism is movable to a first position to form a first leg and a second position to form a drawbar of the suitcase; and

the second support mechanism is movable to a third position to form a second leg of the suitcase.

5. The suitcase of claim 4, wherein:

the first support mechanism is rotatably configured on the rear surface of the suitcase body via at least one first connection limit mechanism; and

the at least one first connection limit mechanism is configured to allow the first support mechanism to be rotated to the first position or the second position.

6. The suitcase of claim 5, wherein:

the first support mechanism is rotatably connected to the at least one first connection limit mechanism via a first hinge assembly;

a first limit structure is configured on the first support mechanism;

a second limit structure and a third limit structure are configured on each of the at least one first connection limit mechanism; and

the first limit structure is configured to cooperate with the second limit structure and the third limit structure to allow the first support mechanism to be rotated to the first position or the second position.

7. The suitcase of claim 6, wherein:

at least one of the at least one first connection limit mechanism includes a rotating bracket and a fixed bracket;

the rotating bracket is of a U-shape;

a first curved part is formed on the rotating bracket;

the second limit structure and the third limit structure are configured on the first curved part;

the fixed bracket is of a U-shape;

the fixed bracket is fixed to the rear surface of the suitcase body;

the rotating bracket is rotatably connected to the fixed bracket via a second hinge assembly;

the first support mechanism is rotatably connected to the rotating bracket via a third hinge assembly; and

the first limit structure is engaged with the second limit structure so as to allow the first support mechanism to drive the rotating bracket to be rotated to the first position.

8. The suitcase of claim 7, wherein:

at least one of the at least one first connection limit mechanism includes an elastic connector;

a first end of the elastic connector is connected to the rotating bracket, and a second end of the elastic connector is connected to the fixed bracket; and

the first support mechanism, the rotating bracket, and the fixed bracket are configured to form a stable structure.

9. The suitcase of claim 6, wherein:

at least one of the at least one first connection limit mechanism includes a connection limit base of a U-shape;

a second curved part is formed on the connection limit base;

the second limit structure and the third limit structure are configured on the second curved part;

the connection limit base is fixed on the rear surface of the suitcase body; and

the first support mechanism is rotatably connected to the connection limit base via a fourth hinge assembly.

10. The suitcase of claim 9, wherein:

a fourth limit structure is configured on the second curved part; and

the first limit structure is engaged with the fourth limit structure that is configured to maintain the first support mechanism in a folded state.

11. The suitcase of claim 6, wherein:

the first support mechanism includes a first rod and a second rod;

the first limit structure is attached to the first rod and the second rod;

a first end of the first rod connected to the first limit structure is rotatably attached to the rear surface of the suitcase body via one of the at least one first connection limit mechanism;

a first end of the second rod connected to the first limit structure is rotatably configured on the rear surface of the suitcase body via another one of the at least one first connection limit mechanism;

a second end of the first rod is connected to a handle; and

a second end of the second rod is connected to the handle such that the first rod, the handle, and the second rod form a U-shaped structure.

12. The suitcase of claim 11, wherein:

the first support mechanism includes a first reinforcing rod; and

the first reinforcing rod is configured between the first rod and the second rod.

13. The suitcase of claim 12, wherein at least one of the first rod or the second rod is a retractable rod.

14. The suitcase of claim 6, wherein:

the first limit structure is retractably configured on the first support mechanism;

a control component is further configured on the first support mechanism; and

the control component is connected to the first limit structure via a gear that is configured to allow the control component to control extension or retraction of the first limit structure.

15. The suitcase of claim 4, wherein:

the second support mechanism is rotatably configured on the rear surface of the suitcase body via at least one second connection limit mechanism; and

the at least one second connection limit mechanism is configured to allow the second support mechanism to be rotated to the third position.

16. The suitcase of claim 15, wherein at least one of the at least one second connection limit mechanism has a same structure as at least one of the at least one first connection limit mechanism.

17-22. (canceled)

23. The suitcase of claim 1, wherein:

the support mechanism includes at least two legs;

the at least two legs are independent of a drawbar of the suitcase; and

the at least two legs are retractable and/or foldable with respect to the suitcase body.

24. The suitcase of claim 23, wherein:

the support mechanism includes four legs;

the four legs are configured at four corners of the suitcase; and

the four legs are retractable with respect to the suitcase body.

25. The suitcase of claim 1, wherein:

the support mechanism includes a leg; and

the leg is configured at a center of a surface of the suitcase body.

26. A suitcase including a suitcase body, a first support mechanism, and a second support mechanism, wherein:

the first support mechanism and the second support mechanism are oppositely configured on a rear surface of the suitcase body;

the first support mechanism is movable to a first position to form a first leg of the suitcase via at least one first connection limit mechanism;

the second support mechanism is movable to a third position to form a second leg of the suitcase;

at least one of the at least one first connection limit mechanism includes an elastic connector;

a first end of the elastic connector is connected to the first support mechanism, and a second end of the elastic connector is connected to the rear surface of the suitcase body; and

the first support mechanism, and the rear surface of the suitcase body are configured to form a stable structure.

27-40. (canceled)