A multi-state transport device with reconfigurable boundaries and a state transition method thereof

Abstract

This invention relates to the field of transportation device technology, and discloses a multi-state transportation device with reconfigurable load-bearing boundaries and its state transition method. The transportation device includes a main structure, a deformable support unit movable relative to the main structure, and a movable support component associated with the deformable support unit. The deformable support unit can move between a concealed state and an expanded state. In the concealed state, the movable support component is at least partially located within the outer boundary range formed by the main structure, giving the device a neatly defined concealed profile. In the expanded state, the movable support component moves beyond the outer boundary range and participates in defining the load-bearing boundary range in the expanded state, realizing the switching of the movable support component from a boundary-inward state to a boundary-outward support state. Through the movement of the deformable support unit, the load-bearing boundary composition of the device changes, and the movable support component transforms from a concealed entity within the boundary to a boundary builder, thereby achieving load-bearing boundary reconfiguration. The device can form a concealed form, a transportation form, a platform form, and / or a desktop form. This invention solves the problems of exposed wheel sets, irregular concealment, and the need for separate disassembly and assembly of the movable support component in existing folding transportation devices, and has the advantages of compact structure, convenient state transition, neat boundaries, and high functional integration.

Description

Technical Field

[0001] This invention relates to the field of transportation equipment technology, and specifically to a multi-state transportation device with reconfigurable bearing boundaries and its state transition method. Background Technology

[0002] With the increasing popularity of private cars and the rise in activities such as road trips, outdoor camping, and large-scale shopping, users have higher demands for efficient use of car trunk space and convenient cargo handling. Currently, a common practice is for users to place a storage box in the trunk to organize miscellaneous items and a handcart to carry heavy objects.

[0003] This approach has the following obvious drawbacks: First, storing the storage box and the trolley as two separate items together takes up a significant amount of trunk space. This problem is particularly prominent in situations where space is limited.

[0004] Secondly, the storage box and the handcart are both single-function and cannot be used interchangeably. When users do not need to move heavy objects, the handcart is idle; when users need to organize and tidy up, the storage box cannot provide transportation. The functions of the two items cannot be flexibly switched between different scenarios.

[0005] Some existing technologies include foldable handcarts that attempt to reduce size through folding structures. However, when folded, they offer zero storage space, making them unsuitable as well-organized storage containers. In reality, many scenarios do require storage space after folding, such as camping, where large items need to be moved and many bottles and jars, like food, beverages, and teaware, still need to be stored.

[0006] In addition, existing folding transport devices share the following common problems: the mobile support components are usually fixed and exposed to the vehicle structure, and cannot be retracted into the device's outline when folded, resulting in a still relatively large space occupation and an irregular appearance when stored. Especially when stowed, the casters often protrude beyond the device's outline, taking up additional height and width space, making it impossible to neatly fit the device into limited spaces such as a car trunk. To minimize space occupation, some products use the method of removing the wheel set for storage, which is cumbersome and results in a poor user experience.

[0007] Based on the above problems, there is an urgent need for a solution that is highly integrated, easy to switch, structurally reliable, and capable of reconstructing the bearing boundary and expanding the bearing space during the state transition process. Summary of the Invention

[0008] I. The technical problem to be solved by the invention This invention aims to solve the following technical problems existing in the prior art: (1) The storage box and the transportation vehicle are separate, occupying twice the storage space; (2) Existing folding transport devices cannot form a regular storage container after folding; (3) During the state transition process, the carrying space of the existing folding transport device changes from existing to non-existent, and the boundary cannot be flexibly expanded; (4) The existing mobile support components are exposed on the outline of the device when in the concealed state, occupying extra space and unable to complete the boundary retraction synchronously with the deformation process; (5) The existing device’s mobile support components need to be disassembled separately and cannot automatically switch positions during the deformation process. Technical solution

[0009] To achieve the above objectives, the present invention adopts the following technical solution: A multi-state transport device with reconfigurable carrying boundaries includes: Main structure; At least one deformable support unit that can move relative to the main structure; And a movable support assembly associated with the deformable support unit; in, The deformable support unit is able to move relative to the main structure between a concealed state and an expanded state. In the contained state, the movable support assembly is at least partially located within the outer boundary formed by the main structure; In the extended state, the deformable support unit is at least partially located outside the main structure, and the movable support assembly moves to outside the outer boundary range formed by the main structure and participates in defining the load-bearing boundary range in the extended state. During the transition of the deformable support unit from the containment state to the expansion state, the structural relationship of the bearing boundary range changes, thereby enabling the mobile support component to switch from the boundary-inward state to the boundary-outward support state.

[0010] Furthermore, the motion of the deformable support unit relative to the main structure includes at least one of the following: rotational motion, translational motion, sliding motion, oscillating motion, or a composite trajectory motion consisting of at least two of the above motions.

[0011] Furthermore, the movement between the deformable support unit and the main structure is achieved through at least one of the following mechanisms: a hinged linkage mechanism, a sliding groove and pin mechanism, a scissor mechanism, a plate folding mechanism, or a combination of the above mechanisms.

[0012] Furthermore, the deformable support unit includes mirror support structures respectively disposed on both sides of the main structure. In the extended state, the ground reaction force is transmitted to the ground through the movable support component on one side, the deformable support unit on that side, the main structure, the deformable support unit on the other side, and the movable support component on the other side, forming a closed force path.

[0013] Furthermore, the movable support assembly includes a support frame and a support extension extending toward the load-bearing assembly. In the extended state, the support extension forms an auxiliary contact support with the main structure and / or the load-bearing assembly to share the local load at the connection point of the movable support assembly.

[0014] Furthermore, a locking structure is also included. This locking structure automatically engages when the deformable support unit reaches its concealed state and / or expanded state, thereby restricting reverse movement of the deformable support unit. The locking structure can be manually disengaged.

[0015] Furthermore, it also includes an enclosure component. The enclosure component is used to form a barrier structure, a load-bearing structure, a platform structure, and / or a limiting structure for limiting the deformable support unit.

[0016] Furthermore, the transport device can be configured in a stowed state, and in an expanded state, in a transport state and / or a platform state. At least some components of the enclosure assembly can be reassembled and installed on top of the main structure to form a desktop configuration.

[0017] Furthermore, it also includes a traction assembly, which is at least partially retractable within the main structure. In transport mode, the traction assembly can extend to tow the transport device.

[0018] Furthermore, the left and right deformable support units can be simultaneously deployed and / or simultaneously accommodated under the action of gravity, inertia, or synchronous linkage structure.

[0019] The present invention also provides a state transition method for a multi-state transportation device with reconfigurable bearing boundaries. The transportation device includes a main structure, a deformable support unit that can move relative to the main structure, and a movable support assembly associated with the deformable support unit, comprising the following steps: This allows the deformable support unit to move relative to the main structure. During the movement of the deformable support unit, the movable support component is driven to switch its boundary position, so that the movable support component moves from the receiving position within the outer boundary range formed by the main structure to the ground support position outside the outer boundary range. During the process of the mobile support component forming ground support, the mobile support component participates in defining the load-bearing boundary range in the extended state, and the compositional relationship of the load-bearing boundary range changes; It forms a support system consisting of the main structure, deformable support units, and movable support components; Thus, the transport device changes from a containment state to an expanded state, and the mobile support component switches from a state of being retracted within the boundary to a state of being supported outside the boundary.

[0020] III. Definitions of Key Terms In this paper, "reconfigurable load-bearing boundary" refers to the process and characteristic of a substantial change in the boundary composition relationship of the load-bearing area under different states of the device. Specifically, in the containment state, the load-bearing boundary is defined by the core structure such as the main structure, and the movable support component is located within this boundary range; in the expansion state, the movable support component moves to outside the original boundary range, forming a new load-bearing boundary together with the main structure and deformable support unit. This change is not only a geometric expansion of the boundary range, but also a structural switch of the boundary constituent members.

[0021] The "main structure" refers to the part that forms the main skeleton of the device, used to connect and support deformable support units and other components. The main structure is usually located in the middle or upper region of the device. In the housed state, the outer boundary of the main structure constitutes the basic outline boundary of the device.

[0022] A "deformable support unit" refers to a functional unit that can move relative to the main structure and change its shape and / or spatial position during movement. This unit has a dual function: firstly, it connects and supports the movable support components; secondly, it participates in forming the load-bearing boundary of the device under different states. Deformable support units can be linkage assemblies, plate assemblies, scissor structures, or other mechanical structures capable of shape changes.

[0023] In different embodiments, the deformable support unit can be folded into or around the main structure when in a concealed state. In some embodiments, the deformable support unit, when folded, serves as the internal framework of the storage space, with the enclosing components forming the outer wall of the storage space; in other embodiments, the deformable support unit and the main structure together constitute the outer wall of the storage space. This invention does not limit the specific enclosure method of the deformable support unit in the concealed state.

[0024] "Mobile support assembly" refers to an assembly connected to a deformable support unit for supporting and moving the device on the ground. Mobile support assemblies include, but are not limited to, casters (swivel wheels and / or fixed wheels), rollers, tracks, skids, or other components capable of enabling ground movement. The mobile support assembly changes position as the deformable support unit moves.

[0025] In this invention, the relationship between the movable support component and the outer boundary of the main structure is one of the core structural relationships. In the concealed state, the movable support component is entirely located within the outer boundary formed by the main structure, without protruding beyond the device outline or occupying additional space, resulting in a neat and compact overall appearance of the device. In the extended state, the movable support component moves beyond this outer boundary range, contacts the ground to form support, and participates in constituting a new load-bearing boundary. This "from inside the boundary to outside the boundary" position switching realizes the switching of the movable support component from an inward-retracted state to an outward-supporting state.

[0026] "Bearing boundary range" refers to the outer boundary relationship of the effective bearing area formed by the device in a specific state. This boundary can be jointly defined by the main structure, deformable support units, movable support components, enclosure components, and other structures involved in bearing. The bearing boundary range is not simply a geometric outline, but rather embodies the boundary composition relationship between the various structures involved in bearing. During state transitions, the structural members constituting this boundary range change, resulting in a reconstruction of the composition relationship of the bearing boundary range.

[0027] "Containment state" refers to the movement state in which the deformable support unit retracts into or around the main structure, resulting in a compact and regular overall outline of the device. In the containment state, the deformable support unit drives the movable support assembly to retract towards the main structure, causing the movable support assembly to enter the outer boundary area formed by the main structure. At this time, the device forms a neatly bounded containment outline, and the movable support assembly does not protrude beyond the outline of the main structure, thus not occupying additional height or width space. The device can be placed as a neat storage box in limited spaces such as a car trunk.

[0028] "Extended state" refers to the state in which the deformable support unit unfolds relative to the main structure, and the movable support assembly moves to the outside of the main structure and contacts the ground to form support. In the extended state, the movable support assembly is located outside the outer boundary range formed by the main structure and participates in defining a new load-bearing boundary range. The load-bearing boundary composition of the device changes, forming a load-bearing space larger than that in the containment state. The extended state can correspond to the device's transportation form, platform form, or fence form.

[0029] "Storage mode" refers to the functional form of the device when it is in its stored state. In storage mode, the device can be used as a regular storage container, with the movable support components housed entirely within the device's outline, forming a well-defined storage outline.

[0030] "Transportation mode" refers to the functional form of the device in its expanded state after the enclosure components are installed. In transportation mode, the enclosure components form a load-bearing plane and a enclosure structure, and the device can be used as a transportation tool such as a handcart.

[0031] "Platform form and / or desktop form" refers to the functional form formed by the reassembly and installation of at least some components of the enclosure onto the main structure.

[0032] "Mirror support structure" refers to a combination of deformable support units that are symmetrically arranged on both sides of the main structure.

[0033] A "locking structure" refers to a mechanical mechanism that can automatically or manually switch between locking and unlocking states.

[0034] "Enclosure component" refers to a structural component used to form a barrier, load-bearing structure, platform, or limiting function. An enclosure component may include one or more of the following: base plate, side plates, front plate, and rear plate. Enclosure components are independent reconfigurable components, capable of changing the functional form of the device by disassembly, reinstallation, or recombination in different states. Enclosure components contribute to constituting the load-bearing boundary of the device.

[0035] In different embodiments, the enclosure component and the deformable support unit may have different structural relationships. In some embodiments, the enclosure component may serve as a lower-level component, an auxiliary component, or a follower component of the deformable support unit—for example, the side plate is hinged to the outside of the deformable support unit and can move with the deformable support unit; the base plate and the lower part of the deformable support unit are configured as an integral structure. In other embodiments, the enclosure component can be installed and removed independently of the deformable support unit—for example, the base plate is detachably placed between the main structure and the deformable support unit, and the side plate is detachably snapped into the extended position.

[0036] In all embodiments, the enclosure component retains its independent reconfiguration capability, with at least some of its components capable of being disassembled from their original positions and reassembled on top of the main structure to form a desktop shape. This invention does not limit the specific connection method or affiliation between the enclosure component and the deformable support unit.

[0037] "Towing assembly" refers to the components used to move a towing and transporting device, which may include telescopic rods, ropes, handles, etc.

[0038] "Synchronous deployment" refers to the movement mode in which the two deformable support units on the left and right sides complete the state transition with basically the same time rhythm and movement amplitude during the deployment process. Beneficial effects

[0039] Compared with the prior art, the present invention has the following beneficial effects: 1. The boundary structure can be reconfigured, enabling boundary state switching. This invention overcomes the limitations of traditional folding devices that only fold the structure while maintaining the unchanged load-bearing space boundary. Through the movement of the deformable support unit, the load-bearing boundary structure of the device undergoes a substantial change—the movable support component moves from within the boundary in the concealed state to outside the boundary in the expanded state, transforming from a "contained entity within the boundary" to a "constructor of the boundary." This invention achieves the switching of the movable support component from an inward-facing state to an outward-facing support state. This change in boundary structure makes the effective load-bearing area and load-bearing space in the expanded state significantly larger than in the concealed state, truly realizing a variable-volume transport structure.

[0040] 2. The movable support components are stored together synchronously, forming a neat boundary. The movable support component of this invention synchronously completes boundary inward and boundary outward transitions along with the deformable support unit during state transitions, without requiring separate disassembly or independent storage. In the retracted state, the movable support component is entirely housed within the outer boundary range formed by the main structure, without protruding beyond the device outline, and without occupying additional height or width space, resulting in a neatly defined retracted outline. In the extended state, the movable support component automatically moves beyond the boundary range and touches the ground for support, participating in the formation of a new load-bearing boundary. Throughout the entire process, the user does not need to operate the movable support component separately; the state transition is completed in one step.

[0041] 3. Multi-mechanism compatibility and strong structural scalability The movement between the deformable support unit and the main structure can be achieved through various means such as hinged linkage mechanisms, sliding groove and pin mechanisms, scissor mechanisms, and sheet metal folding mechanisms. This invention protects the motion logic of "changes in the relationship between the load-bearing boundaries" rather than a specific mechanism form, and has good structural scalability and design flexibility.

[0042] 4. Versatile design, multi-functional The device can flexibly switch between multiple functional forms, including storage, transportation, platform, and / or desktop. From storage box to trolley to storage platform to desktop, it meets the needs of various scenarios such as trunk storage, supermarket shopping, outdoor camping, and mobile office, truly achieving multi-purpose functionality.

[0043] 5. Auxiliary support and locking, with meticulous attention to detail. The support extension of the movable support assembly provides auxiliary contact support for the main structure and / or load-bearing components, sharing the load at the connection and improving long-term reliability. The locking structure automatically locks in place after reaching the correct position, preventing reverse movement and ensuring safe operation. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the containment state structure according to Embodiment 1 of the present invention.

[0045] Figure 2 This is a schematic diagram of the extended state structure of Embodiment 1 of the present invention.

[0046] Figure 3 This is a schematic diagram of the closed-loop force path in Embodiment 1 of the present invention (the arrows indicate the direction of force transmission).

[0047] Figure 4 This is a schematic diagram of the desktop form structure according to Embodiment 1 of the present invention.

[0048] Figure 5 This is a schematic diagram of the containment state structure of Embodiment 2 of the present invention.

[0049] Figure 6 This is a schematic diagram of the extended state structure of Embodiment 2 of the present invention.

[0050] Figure 7 This is a schematic diagram of the containment state structure of Embodiment 3 of the present invention.

[0051] Figure 8 This is a schematic diagram of the extended state structure of Embodiment 3 of the present invention.

[0052] Figure 9 This is a schematic diagram of the containment structure in Embodiment 4 of the present invention (the upper right plate is not shown).

[0053] Figure 10 This is a schematic diagram of the extended state structure of Embodiment 4 of the present invention.

[0054] Figure 11 This is a schematic diagram of the containment state structure of Embodiment 5 of the present invention.

[0055] Figure 12 This is a schematic diagram of the extended state structure of Embodiment 5 of the present invention.

[0056] Figure 13 This is a schematic diagram of the bottom structure in the extended state of Embodiment 5 of the present invention.

[0057] Figure 14 This is a partially enlarged schematic diagram of the support extension of the mobile support component of the present invention (the base plate is to be installed in place).

[0058] Figure 15 This is a schematic diagram of the traction component of the present invention in the extended state. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the scope of protection of the invention.

[0060] In the following description, directional terms such as "up," "down," "left," "right," "inner," "outer," "front," "back," "horizontal," and "vertical" are used for ease of understanding and explanation. These directional terms are used only based on the orientation shown in the accompanying drawings and do not constitute a limitation on the scope of protection of this invention.

[0061] Furthermore, the same reference numerals in each embodiment denote the same or similar components, and content that has been described in detail in the previous embodiments will not be repeated in subsequent embodiments.

[0062] It should be noted that the following five embodiments illustrate different forms of motion mechanisms between the deformable support unit and the main structure, including hinged linkage mechanisms, sliding groove and pin mechanisms, scissor mechanisms, plate folding mechanisms, and integrated structures of the base plate and movable support components. These embodiments fully demonstrate that the core inventive concept of "reconfigurable load-bearing boundaries" of this invention can be realized through various mechanical structures, and the scope of protection of this invention is not limited to any specific form.

[0063] In different embodiments, the position and shape of the deformable support unit in the retracted state vary. In some embodiments, the deformable support unit retracts around the periphery of the main structure, forming the outer wall or cover of the storage space with the enclosing components; in other embodiments, the deformable support unit, after retracting, together with the main structure, forms the outer wall of the storage space. This invention does not limit the specific enclosing method of the deformable support unit in the retracted state, as long as the movable support components satisfy the boundary position conditions after retracting.

[0064] In this invention, the movable support component is located within the outer boundary range formed by the main structure in the concealed state, and moves beyond this boundary range in the expanded state, participating in the formation of a new load-bearing boundary. In the concealed state, the deformable support unit drives the movable support component to retract towards the main structure, so that the entire movable support component enters the outer boundary range formed by the main structure, and the device forms a neatly defined concealed outline. This change in boundary composition is the core feature that distinguishes this invention from the prior art.

[0065] Similarly, the enclosure component can be installed as an independent component in different embodiments, or it can be a lower-level component, an auxiliary component, or a follower component of the deformable support unit. The specific structural relationship varies from embodiment to embodiment.

[0066] like Figures 1 to 3 As shown, this embodiment provides a multi-state transportation device with reconfigurable carrying boundaries.

[0067] I. Overall Structure The device includes a main structure 100, deformable support units 200 arranged symmetrically on the left and right, and a movable support assembly 300 connected to the deformable support units 200.

[0068] In this embodiment, the movable support component 300 is a caster assembly, including but not limited to swivel wheels and / or directional wheels.

[0069] The main structure 100 forms the central skeleton of the device, and its overall structure can be frame-type, plate-type, or box-type. The upper part of the main structure 100 may be provided with a handle for easy operation by the user; the lower part of the main structure 100 may be provided with a connecting part that cooperates with the enclosure component 400.

[0070] The deformable support unit 200 adopts a multi-link structure.

[0071] Taking the left side as an example (the right side is mirror-symmetrical), the deformable support unit 200 includes a first link 210, a second link 220, a third link 230 and a fourth link 240. The links are connected to each other and to the main structure 100 through hinges.

[0072] The specific connection relationships are as follows: One end of the first connecting rod 210 is hinged to the main structure 100 through the first hinge 211; The other end of the first link 210 is hinged to one end of the second link 220 and the third link 230 via the second hinge 221; The other end of the second link 220 is hinged to the lower part of the side plate 410 through the third hinge 222, and the middle or lower part of the second link 220 is fixedly connected to the movable support assembly 300. The other end of the third link 230 is connected to the fourth link 240 via the fourth hinge 241; The other end of the fourth link 240 is hinged to the upper part of the side plate 410 via the fifth hinge 242.

[0073] Limiting protrusions 101 and 102 are provided on the main structure 100. The limiting protrusions 101 and 102 are located on the side of the movement path of the deformable support unit 200 and are used to limit the movement range of the deformable support unit 200 to prevent over-expansion or over-contraction.

[0074] II. Boundary Switching and State Transition Process In its stowed state, the device is in a folded-back configuration. The deformable support unit 200 retracts around the main structure 100, causing the movable support assembly 300 to retract towards the main structure 100. At this time, the movable support assembly 300 is entirely housed around the main structure 100, within the outer boundary formed by the main structure 100, without protruding beyond the device's outline and without occupying additional space. The overall appearance of the device is neat and compact, forming a well-defined stowed-back outline, which can be used as a storage box in limited spaces such as a car trunk.

[0075] When unfolded, the user applies force to the main structure 100 or the deformable support unit 200, causing the deformable support unit 200 to move relative to the main structure 100. Each link rotates about its respective hinge point, and the second link 220 moves outward and downward under the action of the linkage mechanism. The movable support assembly 300 moves with the second link 220 from its receiving position within the outer boundary range formed by the main structure 100 to a ground support position outside the outer boundary range, contacting the ground and supporting the main structure 100 to lift off the ground.

[0076] During this process, the structural relationship of the bearing boundary of the device undergoes a substantial change. The movable support assembly 300 transforms from a "received entity within the boundary" in the contained state to a "constructor of the boundary" in the extended state—the movable support assembly 300, the deformable support unit 200, and the main structure 100 jointly define the bearing boundary range in the extended state. This invention realizes the switching of the movable support assembly 300 from a state of being inward-boundary to a state of being outward-boundary support.

[0077] During containment, the operation is reversed. The deformable support unit 200 retracts towards the main structure 100, causing the movable support component 300 to move from outside the boundary back to inside the boundary and return to the containment position. The movable support component 300 then returns to the inward state.

[0078] III. Mobile Support Components like Figure 14 As shown, the movable support assembly 300 includes a support frame 310 and a support extension 320.

[0079] The support frame 310 is the main load-bearing structure of the movable support assembly, used to mount the wheel 330. The support frame 310 is fixedly connected to the lower end of the second connecting rod 220.

[0080] The support extension 320 extends from the support frame 310 toward the load-bearing assembly. Specifically, the support extension 320 extends toward the inside of the device, beyond the body of the support frame 310. In the extended state, the upper surface of the support extension 320 can form auxiliary contact support with the lower surface of the load-bearing base plate 420.

[0081] The upper surface of the support extension 320 may also be provided with a protrusion 321. Correspondingly, the lower surface of the supporting base plate 420 may be provided with a groove that mates with the protrusion 321. After the protrusion 321 is engaged with the groove, the lateral swaying tendency of the movable support assembly 300 relative to the supporting base plate 420 can be restricted, further improving the structural stability in the extended state.

[0082] IV. Enclosure Components The enclosure assembly 400 includes a base plate 420 and side plates 410. The base plate 420 forms a load-bearing plane in the extended state, and the side plates 410 form lateral enclosures. Both the base plate 420 and the side plates 410 can be made of sheet metal or other materials that can form enclosures.

[0083] Enclosing component 400 participates in the load-bearing boundary range of the device.

[0084] The inner end of the base plate 420 is detachably hinged to the lower part of the main structure 100 or the lower part of the side plate. In the concealed state, the base plate 420 can be stored inside the main structure 100 or attached to the surface of the main structure 100 as a cover. In the extended state, the base plate 420 flips outward and is placed horizontally to form a flat bearing bottom surface.

[0085] The side plate 410 is detachably connected to the outside of the deformable support unit 200. In the extended state, the side plate 410 and the bottom plate 420 together enclose an extended load-bearing space.

[0086] The enclosure component 400 maintains independent reconfiguration capabilities: the base plate 420 and side plates 410 can be disassembled from their original positions and reassembled on top of the main structure 100 to form a tabletop shape, such as... Figure 4 As shown.

[0087] V. Locking Structure The second hinge 221 is equipped with a press-type elastic latch. The main structure is provided with a slot corresponding to the two different states of the second hinge 221. The press-type elastic latch can be inserted into the slot of the main structure 100 to form a lock in the two states, preventing the deformable support unit 200 from moving in the opposite direction unexpectedly.

[0088] VI. Traction Components like Figure 15 As shown, the device also includes a traction assembly 600. The traction assembly 600 is at least partially housed inside the main structure 100.

[0089] In this embodiment, the traction component 600 is a telescopic rod. A vertical storage slot may be provided on the main structure 100. When not in use, the telescopic rod retracts and is stored in this slot, concealing it and maintaining a neat appearance. In transport mode, the user can pull the telescopic rod upwards from the slot and extend it to a suitable length to move the transport device.

[0090] VII. Force Closed-Loop Path like Figure 3 As shown, in the extended state, this embodiment forms the following closed force path (the arrows in the figure indicate the direction of force transmission): The ground reaction force is transmitted upward through the left movable support component 300 to the left second link 220, then to the main structure 100, and then from the main structure 100 to the right second link 220, then to the right movable support component 300, and finally back to the ground.

[0091] This closed force path balances the loads on both sides, effectively improving the overall stiffness and anti-tilting ability of the device in transport mode.

[0092] VIII. Multi-form transformation The transportation device in this embodiment can switch between multiple functional modes: Storage configuration: The deformable support unit 200 is in a storage state, and the movable support component 300 is stored around the main structure 100, located within the outer boundary formed by the main structure 100, without occupying additional space, and the device forms a storage outline with regular boundaries.

[0093] Transportation configuration: The deformable support unit 200 is in an extended state, and the movable support assembly 300 moves beyond the boundary area and makes contact with the ground for support. The enclosure assembly 400 is installed to form an enclosed load-bearing space. The traction assembly 600 extends.

[0094] Platform configuration: The base plate 420 and / or side plate 410 of the enclosure component 400 are removed from their original positions, reassembled and installed on top of the main structure 100, and reconnected with the connecting rod support to form a flat tabletop.

[0095] like Figure 5 and Figure 6 As shown, the main difference between this embodiment and Embodiment 1 is that the deformable support unit 200 and the main structure 100 adopt a composite motion mechanism of sliding groove and pin. Other structures are basically the same as in Embodiment 1.

[0096] In this embodiment, the main structure 100 is provided with a guide groove 110. The guide groove 110 may include a straight segment, an arc segment, or a combination of both. The deformable support unit 200 is provided with a guide pin 223 that mates with the guide groove 110. The guide pin 223 is slidably embedded in the guide groove 110, and the two form a sliding fit.

[0097] During state transition, the deformable support unit 200, guided by the guide groove 110 and the guide pin 223, moves relative to the main structure 100 along a predetermined trajectory. The movable support assembly 300 moves with the deformable support unit 200, moving from a receiving position within the outer boundary range formed by the main structure 100 to a ground support position outside that boundary range. The unfolding movement of the deformable support unit 200 changes the load-bearing boundary configuration of the device, realizing the switching of the movable support assembly 300 from a boundary-inward state to a boundary-outward support state.

[0098] In its concealed state, the movable support component 300 is completely housed around the main structure 100, within the outer boundary range, without occupying additional space, and the device forms a neat and orderly storage outline.

[0099] like Figures 7 to 8 As shown, in this embodiment, the deformable support unit 200 adopts a cross-link structure (i.e., a scissor mechanism).

[0100] Taking the left side as an example, the deformable support unit 200 includes a first scissor bar 250 and a second scissor bar 260. The first scissor bar 250 and the second scissor bar 260 are cross-hinged in the middle region. The upper end of the first scissor bar 250 is slidably connected to the side plate 410, and the lower end is hinged to the main structure 100. The upper end of the second scissor bar 260 is slidably connected to the main structure 100, and the lower end is hinged to the side plate 410.

[0101] The movable support assembly 300 is fixedly connected to the lower end of the scissor lift. During state transitions, the scissor lift mechanism extends or retracts, and the movable support assembly 300 moves accordingly, moving from being located within the outer boundary of the main structure in the retracted state to being located outside that boundary in the extended state. The load-bearing boundary structure of the device is restructured, realizing the boundary state switching.

[0102] In this embodiment, the side plate 410 is both part of the enclosure assembly and a component of the scissor mechanism kinematic pair. Meanwhile, the base plate and side plate can still be disassembled and reassembled to form a tabletop shape, maintaining independent state reconstruction capability.

[0103] like Figure 9 and Figure 10 As shown, in this embodiment, the deformable support unit 200 adopts a plate folding structure.

[0104] Taking the left side as an example, the deformable support unit 200 includes an upper plate 270 and a lower plate 280. The upper plate 270 and the lower plate 280 are hinged together by a hinge. The upper plate 270 is connected to the main structure 100 by a first sliding fit. The lower plate 280 is connected to the main structure 100 by a second sliding fit. The movable support assembly 300 is fixedly connected to the lower end of the lower plate 280.

[0105] During the state transition, the upper plate 270 moves outward along the slide groove, while the lower plate 280 moves along the slide groove and flips outward. The movable support assembly 300 moves with the lower plate 280, moving from the retracted state within the outer boundary of the main structure to the extended state outside this boundary and grounded. The load-bearing boundary structure of the device changes, realizing the switching of the movable support assembly from the inward-retracted state to the outward-supported state.

[0106] In the concealed state, the plate of the deformable support unit 200 and the main structure 100 together form the outer wall of the storage space. The movable support component 300 is contained within the boundary of this outer wall without occupying additional space, forming a regular storage outline.

[0107] A locking structure 500 is disposed between the main structure 100 and the deformable support unit 200. The locking structure 500 can automatically lock when the deformable support unit 200 reaches the folded state and / or the expanded state, preventing the deformable support unit 200 from moving in the opposite direction unexpectedly. The locking structure 500 can be unlocked by manual operation.

[0108] like Figures 11 to 13 As shown in this embodiment, the lower plate and the base plate of the deformable support unit 200 are configured as an integral structure.

[0109] The deformable support unit 200 includes an upper plate 270 and an integral base plate 280. The upper plate 270 and the integral base plate 280 are hinged together by a hinge connector. A movable support assembly 300 is fixedly connected to the lower surface of the integral base plate 280.

[0110] During state transition, the outer upper plate 270 is pulled up, and the integrated base plate 280 rotates and unfolds to a horizontal position around the hinge, fixing its other end to the main structure 100. At the same time, a bearing plane is naturally formed, and the movable support component 300 moves from its receiving position to outside the boundary range and lands on the ground to form support. The bearing boundary structure of the device changes, realizing the boundary state switch.

[0111] In the contained state, the plate of the deformable support unit 200 and the main structure 100 together form the outer wall of the storage space, and the movable support component 300 is contained within the boundary of the outer wall.

[0112] In this embodiment, the base plate and the lower part of the deformable support unit are an integral structure, and the enclosure assembly serves as a lower-level component of the deformable support unit. However, the side plates or the base plate can still be installed and disassembled independently, and the enclosure assembly as a whole retains its reconfigurability.

[0113] The five embodiments above illustrate different implementations of the motion mechanism between the deformable support unit and the main structure. A common feature of all embodiments is that: (1) All of them contain three basic components: main structure, deformable support unit and movable support assembly; (2) All movable support components are connected to the deformable support unit and switch positions as the deformable support unit moves; (3) In the containment state, the movable support components are all contained around the main structure and located within the outer boundary formed by the main structure, without occupying additional space, and the device forms a neat and regular containment outline. (4) In the extended state, all the movable support components move to outside the outer boundary range and participate in forming a new load-bearing boundary; (5) During the state transition process, the bearing boundary composition relationship of the device undergoes substantial changes, realizing the switching of the mobile support component from the boundary inward state to the boundary outward support state; (6) All of them can form a support system consisting of the main structure, left and right deformable support units and movable support components.

[0114] These common features are precisely the embodiment of the core inventive concept of "reconfigurable load-bearing boundaries" in this invention. Those skilled in the art should understand that, in addition to the mechanisms listed in the five embodiments above, other mechanical structures can be used to achieve the same motion logic and variations in the load-bearing boundary relationships; these alternative solutions all fall within the scope of protection of this invention.

[0115] The state transition method provided by this invention is based on the principle that the movement of the deformable support unit drives the movable support component to switch its boundary position—from a receiving position within the outer boundary range of the main structure to a ground support position outside the boundary range. This simultaneously achieves a change in the bearing boundary structure and a switch of the movable support component from a boundary-inward state to a boundary-outward support state. This method is applicable to all the above embodiments and other implementations based on the same inventive concept.

[0116] In practical operation, the transition from the contained state to the expanded state can be triggered by lifting the main structure or by directly applying force to the deformable support unit. The transition from the expanded state to the contained state can be achieved by applying force to close it. In a preferred embodiment, the synchronous movement during the containing and unfolding processes can be achieved naturally by gravity or with the assistance of a synchronous linkage structure.

[0117] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, shall still fall within the protection scope of the present invention.

Claims

1. A multi-state transportation device with reconfigurable carrying boundaries, characterized in that, include: Main structure; At least one deformable support unit that can move relative to the main structure; And a movable support assembly associated with the deformable support unit; in, The deformable support unit is able to move relative to the main structure between a concealed state and an expanded state. In the contained state, the movable support assembly is at least partially located within the outer boundary formed by the main structure; In the extended state, the deformable support unit is at least partially located outside the main structure, and the movable support assembly moves to outside the outer boundary range formed by the main structure and participates in defining the load-bearing boundary range in the extended state. During the transition of the deformable support unit from the containment state to the expansion state, the structural relationship of the bearing boundary range changes, thereby enabling the mobile support component to switch from the boundary-inward state to the boundary-outward support state.

2. The multi-state transportation device with reconfigurable bearing boundaries according to claim 1, characterized in that: The movement of the deformable support unit relative to the main structure includes at least one of the following: Rotational motion, translational motion, sliding motion, oscillating motion, or a composite trajectory motion consisting of at least two of the above motions.

3. A multi-state transportation device with reconfigurable bearing boundaries according to claim 2, characterized in that: The movement between the deformable support unit and the main structure is achieved through at least one of the following mechanisms: Hinged linkage mechanism, slide and pin mechanism, scissor mechanism, sheet metal folding mechanism, or a combination of the above mechanisms.

4. The multi-state transportation device with reconfigurable bearing boundaries according to claim 1, characterized in that: The deformable support unit includes mirror support structures respectively disposed on both sides of the main structure; In the extended state, the deformable support units on both sides form a stable support system with the main structure.

5. A multi-state transportation device with reconfigurable bearing boundaries according to claim 1, characterized in that: The movable support assembly includes a support frame and a support extension extending toward the load-bearing assembly. In the extended state, the support extension forms an auxiliary contact support with the main structure and / or load-bearing components.

6. A multi-state transportation device with reconfigurable bearing boundaries according to claim 1, characterized in that: It also includes enclosure components; The enclosure components are used to form a fencing structure, a load-bearing structure, or a platform structure; The enclosure component participates in forming the bearing boundary range.

7. A multi-state transportation device with reconfigurable bearing boundaries according to claim 1, characterized in that: The left and right deformable support units can move in tandem.

8. A multi-state transportation device with reconfigurable bearing boundaries according to claim 1, characterized in that: It also includes a traction assembly, which is at least partially retractable within the main structure and can extend in transport mode to move the transport device.

9. A state transition method for a multi-state transport device with reconfigurable bearing boundaries, the transport device comprising a main structure, a deformable support unit movable relative to the main structure, and a movable support assembly associated with the deformable support unit, characterized in that... Includes the following steps: This allows the deformable support unit to move relative to the main structure. During the movement of the deformable support unit, the movable support component is driven to switch its boundary position, so that the movable support component moves from the receiving position within the outer boundary range formed by the main structure to the ground support position outside the outer boundary range. During the process of the mobile support component forming ground support, the mobile support component participates in defining the load-bearing boundary range in the extended state, and the compositional relationship of the load-bearing boundary range changes; It forms a support system consisting of the main structure, deformable support units, and movable support components; Thus, the transport device changes from a containment state to an expanded state, and the mobile support component switches from a state of being retracted within the boundary to a state of being supported outside the boundary.

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