Folding structure and bearing device

Abstract

The utility model belongs to the technical field of folding carts, and discloses a folding structure and a bearing device, the folding structure comprises a connecting assembly and the bearing device, the connecting assembly comprises a pair of connecting pieces rotationally connected through a rotating shaft, and the connecting assembly has a folding state and an unfolding state; the adjusting assembly is movably connected to the connecting assembly and is provided with a first position and a second position relative to the connecting assembly. When the adjusting assembly is located at the first position, the connecting assembly can be switched between the unfolding state and the folding state, and when the adjusting assembly is located at the second position, the center line of the adjusting assembly intersects with the axis of the rotating shaft so that the connecting assembly can be limited in the unfolding state. According to the folding structure and the bearing device provided by the utility model, the size is smaller, the occupied space is smaller, and the folding structure and the bearing device are convenient to store and transport.

Description

Technical Field

[0001] This utility model relates to the field of folding trolley technology, and in particular to a folding structure and a load-bearing device. Background Technology

[0002] Trolleys are convenient for moving heavy items such as goods and suitcases. They typically consist of a base, a pull rod connected to one end of the base, and wheels located at the bottom of the base. The pull rod allows users to easily pull or push the trolley, while the wheels improve its maneuverability and reduce the external force required to push it.

[0003] In existing technologies, to reduce the space occupied by the trolley, the pull rod is designed to be telescopic, allowing for a shorter pull rod length and consequently a shorter trolley height. However, the trolley's planar dimensions are equal to the base's planar dimensions. To increase the carrying capacity of the base, the base's planar dimensions are usually larger, resulting in a larger trolley overall, requiring more space and making it inconvenient to store and transport.

[0004] Therefore, there is an urgent need for a folding structure and a trolley to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a folding structure that has a small size, requires less space, and is easy to store and transport.

[0006] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0007] The folding structure includes:

[0008] The connecting assembly includes a pair of connectors rotatably connected by a rotating shaft, and has a folded state and an unfolded state;

[0009] An adjustment component is movably connected to the connecting component and has a first position and a second position relative to the connecting component; when the adjustment component is in the first position, the connecting component can switch between the unfolded state and the folded state; when the adjustment component is in the second position, the centerline of the adjustment component intersects the axis of the rotation shaft to limit the connecting component to the unfolded state.

[0010] Optionally, when the adjusting component is in the first position, the center line of the adjusting component is parallel or collinear with the axis of the rotating shaft;

[0011] The adjustment assembly includes a pair of adjustment members, which are rotatably connected to a pair of connecting members in a one-to-one correspondence. The pair of adjustment members rotate synchronously relative to the pair of connecting members, causing the adjustment assembly to move between the first position and the second position. The pair of adjustment members are rotatably connected about the center line of the adjustment assembly.

[0012] Optionally, the rotating shaft includes a connecting area and a non-connecting area, the adjusting member includes a connected rotating part and an adjusting part, the rotating parts are rotatably connected to the connecting member in a one-to-one correspondence, and the two adjusting parts are placed in the same non-connecting area.

[0013] Optionally, the adjusting part is cylindrical;

[0014] When the adjustment component is in the first position, the axes of the two adjustment parts are collinear with the axis of the rotation shaft; when the adjustment component is in the second position, the axes of the two adjustment parts are collinear and intersect with the axis of the rotation shaft.

[0015] Optionally, the connector is provided with a communicating groove and a limiting hole;

[0016] In the corresponding connector and the adjusting member, the rotating part of the adjusting member is rotatably disposed through the limiting hole of the connector and placed in the groove. One end of the rotating part is connected to the adjusting part, and the other end of the rotating part abuts against the groove wall of the groove. The limiting hole is used to restrict the movement of the rotating part in a direction perpendicular to the extension direction of the rotating part.

[0017] Optionally, the folding structure further includes a movable member, and the connecting member is provided with a receiving groove that cooperates with the movable member. When the adjusting component is in the first position, the movable member is placed in the receiving groove, and when the adjusting component is in the second position, the movable member is located outside the receiving groove.

[0018] Each of the rotating parts is connected to a movable member at the end opposite to the adjusting part; or, the movable member is movably connected to the connecting assembly.

[0019] Optionally, when the connecting assembly is in the folded state, a pair of connecting members have bottom surfaces that are arranged opposite each other and bearing surfaces that are arranged back to back; in the unfolded state, the two bearing surfaces are coplanar.

[0020] Both the groove and the receiving groove are located on the bottom surface of the connector.

[0021] Optionally, when the connecting component is in the folded state, the axis of the rotation shaft is located on one side of the connecting component in the first direction; when the connecting component is in the unfolded state, the axis of the rotation shaft is located on one side of the connecting component in the second direction.

[0022] The axial direction of the rotation axis, the first direction, and the second direction are all perpendicular to each other; and / or,

[0023] The folding mechanism further includes a locking structure disposed between the adjusting component and the connecting component for limiting the adjusting component to the first position and / or the second position.

[0024] Another objective of this invention is to provide a support device with a flexible structure and a small volume.

[0025] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0026] The support device includes the folding structure described above.

[0027] Optionally, the carrying device is a trolley;

[0028] The connecting component is the base plate of the trolley, and the movable part of the folding structure is the wheel of the trolley.

[0029] The beneficial effects of this utility model are:

[0030] The folding structure and load-bearing device provided by this utility model have an unfolded state and a folded state as their connecting component. The connecting component includes a pair of connectors rotatably connected by a rotating shaft. An adjusting component is movably connected to the connecting component and can move between a first position and a second position. When the adjusting component is in the first position, the connecting component switches between the unfolded state and the folded state. When the adjusting component is in the second position, the center line of the adjusting component intersects with the axis of the rotating shaft to confine the connecting component to the unfolded state. By unfolding the connecting component, the folding structure can have a larger load-bearing area, increasing the handling capacity. By folding the connecting component, the overall size of the connecting component and the folding structure can be smaller, requiring less space and facilitating storage and transportation. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the folding structure provided in this embodiment of the utility model. Figure 1 ;

[0033] Figure 2 This is a schematic diagram of the folding structure provided in this embodiment of the utility model. Figure 2 ;

[0034] Figure 3 This is an exploded view of the folding structure provided in an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the connecting component provided in this embodiment of the present invention in the unfolded state;

[0036] Figure 5 This is a reference diagram showing the usage state of the folding structure provided in this embodiment of the utility model;

[0037] Figure 6 This is a schematic diagram of the connecting component provided in this embodiment of the present invention in a folded state.

[0038] In the picture:

[0039] 100. Connecting component; 110. Connector; 101. Bottom surface; 102. Bearing surface; 111. First connector; 112. Second connector; 120. Groove; 130. Limiting hole; 140. Receiving groove; 150. Limiting component; 160. Push rod storage groove; 200. Rotating shaft; 210. Connecting area; 220. Non-connecting area; 230. First shaft portion; 240. Second shaft portion; 300. Adjusting component; 310. Adjusting component; 311. Rotating part; 312. Adjusting part; 313. First adjusting component; 314. Second adjusting component; 400. Movable part;

[0040] 10. Putter;

[0041] L1, First axis; L2, Centerline; L3, Second axis; L4, Third axis;

[0042] X, the first direction; Y, the second direction. Detailed Implementation

[0043] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0047] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0048] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or it can be located in between the component.

[0049] This embodiment provides a folding structure that has a small size, requires less space, and is easy to store and transport.

[0050] like Figures 1 to 6 As shown, the folding structure includes a connecting component 100 and a rotating shaft 200 and an adjusting component 300, both of which are disposed on the connecting component 100.

[0051] The connecting assembly 100 includes a pair of connectors 110 rotatably connected via a rotating shaft 200. In this embodiment, the pair of connectors 110 are a first connector 111 and a second connector 112. Furthermore, the connecting assembly 100 has a folded state and an unfolded state. The overall size of the connecting assembly 100 in the folded state is smaller than its overall size in the unfolded state; that is, the connecting assembly 100 can be unfolded and folded, providing high flexibility. Figure 1 , Figure 3 and Figure 4 This is a schematic diagram of the connecting component 100 in the deployed state. Figure 2 This is an exploded view of the connecting component 100. Figure 5 This is a state diagram of the connecting component 100 as it moves from the unfolded state to the folded state. Figure 6 This is a schematic diagram of the connecting component 100 in a folded state.

[0052] Exemplarily, both the first connector 111 and the second connector 112 can be plate-shaped. In some alternative embodiments, such as Figure 1 As shown, when the connecting assembly 100 is in the unfolded state, the first connector 111 and the second connector 112 can be located on the same plane, such that the top surface of the first connector 111 and the top surface of the second connector 112 are coplanar, which can support goods. When the connecting assembly 100 is in the folded state, the first connector 111 and the second connector 112 are folded together, so that they can be arranged opposite each other in the thickness direction of one of them.

[0053] For example, when the connecting component 100 is in a folded state, such as Figure 6 As shown, one surface of the first connector 111 in the thickness direction contacts one surface of the second connector 112 in the thickness direction, making the folding more thorough, reducing the overall thickness of the folding structure, and facilitating the miniaturization of the folding structure.

[0054] For example, such as Figure 6 As shown, both the first connector 111 and the second connector 112 have a bearing surface 102 and a bottom surface 101. When the connecting assembly 100 is in a folded state, the bottom surfaces 101 of the two connectors 110 are arranged opposite each other, and the bearing surfaces 102 of the two connectors 110 are arranged back to back. In some optional embodiments, when the connecting assembly 100 is in an unfolded state, the bearing surfaces 102 of the first connector 111 and the bearing surfaces 102 of the second connector 112 are coplanar; when the connecting assembly 100 is in a folded state, the bottom surface 101 of the first connector 111 is in contact with the bottom surface 101 of the second connector 112.

[0055] For example, the adjustment component 300 is movably connected to the connection component 100 and has a first position and a second position relative to the connection component 100. Figure 4 This is a schematic diagram of the adjusting component 300 in the first position. Figure 3 This is a schematic diagram of the adjustment component 300 in the second position.

[0056] like Figure 4 As shown, when the adjustment component 300 is in the first position, the connecting component 100 can switch between the unfolded state and the folded state, that is, the adjustment component 300 does not interfere with the rotation of the first connecting member 111 and the second connecting member 112.

[0057] In some optional embodiments, when the adjustment component 300 is in the first position, the center line L2 of the adjustment component 300 is parallel or collinear with the axis of the rotation shaft 200 (i.e., the first axis L1), so that the adjustment component 300 does not interfere with the rotation of the first connector 111 and the second connector 112, thereby enabling the connection component 100 to switch between the unfolded state and the folded state.

[0058] like Figure 3 As shown, when the adjustment component 300 is in the second position, the center line L2 of the adjustment component 300 intersects the axis of the rotation shaft 200 to limit the connecting component 100 to (or limit it to) the unfolded state. The first connecting member 111 cannot rotate relative to the second connecting member 112 about the rotation shaft 200, thereby keeping the connecting component 100 in the unfolded state.

[0059] The folding structure provided in this embodiment includes a connecting component 100 with an unfolded state and a folded state. The connecting component 100 includes a first connecting member 111 and a second connecting member 112 rotatably connected via a rotating shaft 200. An adjusting component 300 is movably connected to the connecting component 100 and can move between a first position and a second position. When the adjusting component 300 is in the first position, the first connecting member 111 can rotate relative to the second connecting member 112 via the rotating shaft 200, thus switching the connecting component 100 between the unfolded and folded states. When the adjusting component 300 is in the second position, the centerline L2 of the adjusting component 300 intersects the axis of the rotating shaft 200, thereby confining the connecting component 100 to the unfolded state. By unfolding the connecting component 100, the folding structure can have a larger bearing surface area 102, increasing the handling capacity. By folding the connecting component 100, the overall size of the connecting component 100 and the folding structure can be smaller, requiring less space and facilitating storage and transportation.

[0060] Optionally, multiple sets of adjustment components 300 may be provided, and these multiple sets of adjustment components 300 are spaced apart along the axial direction of the rotation shaft 200. For example, such as Figure 2 As shown, the adjustment component 300 in this embodiment is provided in two sets, and the two sets of adjustment components 300 are arranged at intervals.

[0061] For example, the adjustment assembly 300 includes a pair of adjustment members 310, which are rotatably connected to a pair of connecting members 110 in a one-to-one correspondence, and the pair of adjustment members 310 rotate synchronously with respect to the pair of connecting members 110, so that the adjustment assembly 300 moves between a first position and a second position. For example, the axis of rotation of the adjustment member 310 relative to the connecting member 110 is perpendicular to the axis of rotation shaft 200.

[0062] Optionally, such as Figure 3 As shown, a pair of adjusting members 310 includes a first adjusting member 313 and a second adjusting member 314. The first adjusting member 313 is rotatably connected to the first connecting member 111, and the second adjusting member 314 is rotatably connected to the second connecting member 112, thereby realizing the movable connection between the adjusting assembly 300 and the connecting assembly 100. Exemplarily, the axis of rotation of the first adjusting member 313 relative to the connecting member 110 is the second axis L3, and the axis of rotation of the second adjusting member 314 relative to the connecting member 110 is the third axis L4.

[0063] For example, a pair of adjusting members 310 are rotatably connected about the center line L2 of the adjusting assembly 300. That is, the axes of rotation of the first adjusting member 313 and the second adjusting member 314 are collinear with the center line L2 of the adjusting assembly 300. The pair of adjusting members 310 are rotatably connected about the center line L2 of the adjusting assembly 300, so that when the adjusting assembly 300 is in the first position, the axes of rotation of the pair of adjusting members 310 are parallel or collinear with the axis of the rotation shaft 200. This allows the relative rotation direction of the pair of adjusting members 310 to be the same as the relative rotation direction of the pair of connecting members 110. Consequently, the pair of adjusting members 310 can rotate relative to each other as the pair of connecting members 110 rotate, without jamming, allowing the connecting assembly 100 to smoothly switch from the unfolded state to the folded state. When the adjustment assembly 300 is in the second position, the axis of rotation of the pair of adjustment members 310 intersects the axis of rotation of the rotation shaft 200, so that the relative rotation direction of the pair of adjustment members 310 can be different from the relative rotation direction of the pair of connecting members 110. At this time, when the pair of connecting members 110 rotate relative to each other, they will be blocked by the adjustment members 310, thereby limiting the connecting assembly 100 to the unfolded state.

[0064] In some alternative embodiments, such as Figure 3 As shown, the rotating shaft 200 includes a connecting region 210 and a non-connecting region 220. The connecting region 210 and the non-connecting region 220 are arranged along the axial direction of the rotating shaft 200.

[0065] Alternatively, the rotating shaft 200 may include at least one first shaft portion 230 and at least one second shaft portion 240.

[0066] When both a first shaft portion 230 and a second shaft portion 240 are provided, the first shaft portion 230 and the second shaft portion 240 are coaxial and rotatably connected, for example, by a connecting rod passing through the axes of the first shaft portion 230 and the second shaft portion 240. Furthermore, the first shaft portion 230 and the second shaft portion 240 are arranged along the axial direction of the rotation shaft 200. The first shaft portion 230 is connected to the first connecting member 111; when the first connecting member 111 rotates, the first shaft portion 230 rotates about its axis. The second shaft portion 240 is connected to the second connecting member 112; when the second connecting member 112 rotates, the second shaft portion 240 rotates about its axis. In this case, the first shaft portion 230 and the second shaft portion 240 combine to form a connecting region 210. The gap between the first shaft portion 230 and the second shaft portion 240, or the axially opened disconnection space of the first shaft portion 230 or the axially opened disconnection space of the second shaft portion 240, can be a non-connecting region 220.

[0067] When multiple first shaft portions 230 and / or multiple second shaft portions 240 are provided, the multiple first shaft portions 230 and second shaft portions 240 combine to form a connecting region 210. For example... Figure 2 and Figure 3 As shown, the first shaft portion 230 and the second shaft portion 240 are arranged alternately along the axial direction of the rotation shaft 200. The first shaft portion 230 is connected to the first connecting member 111, and the second shaft portion 240 is connected to the second connecting member 112. For example, the first shaft portion 230 and the adjacent second shaft portion 240 can contact each other, and the contacting first shaft portion 230 and second shaft portion 240 are rotatably connected. There can also be a gap between the first shaft portion 230 and the second shaft portion 240, which can form a non-connection area 220.

[0068] In some alternative embodiments, the rotating shaft 200 may not include the non-connection region 220. In this case, the adjustment component 300 may be located on at least one side of the rotating shaft 200 in its axial direction. This embodiment does not limit this.

[0069] Further optional, such as Figure 4 As shown, each adjusting member 310 includes a rotating part 311 and an adjusting part 312 connected together. The rotating part 311 is connected to the connecting member 110 in a one-to-one correspondence. The two adjusting parts 312 are both placed in the same non-connecting area 220, so that the adjusting parts 312 and the connecting area 210 can be arranged in the axial direction of the rotation shaft 200. The adjusting parts 312 do not occupy the space on the connecting assembly 100, but make full use of the non-connecting area 220. Furthermore, by placing the adjusting parts 312 in the non-connecting area 220, when the adjusting assembly 300 is in the first position, the adjusting parts 312 will not affect the rotation of the first connecting member 111 and the second connecting member 112 relative to the rotation shaft 200.

[0070] Exemplarily, the adjusting part 312 is cylindrical, and its radius is less than or equal to the radius of the rotating shaft 200. This ensures that the adjusting part 312 does not affect the folding of the first connector 111 and the second connector 112, thereby guaranteeing that the bottom surface 101 of the first connector 111 in the folded state can contact the bottom surface 101 of the second connector 112, further reducing the size of the connecting assembly 100 in the folded state. In this embodiment, the radius of the adjusting part 312 is equal to the radius of the rotating shaft 200.

[0071] When the adjusting component 300 is in the first position, such as Figure 4 As shown, the axes of the two adjusting parts 312 are collinear with the axis of the rotating shaft 200 (i.e., the first axis L1). At this time, the function of the adjusting parts 312 is the same as that of the rotating shaft 200, allowing the first connecting member 111 and the second connecting member 112 to rotate around the adjusting parts 312. When the adjusting assembly 300 is in the second position, as... Figure 2 As shown, the axes of the two adjusting parts 312 are collinear and intersect the axis of the rotating shaft 200 to prevent the first connecting member 111 and the second connecting member 112 from rotating relative to the rotating shaft 200. Exemplarily, when the adjusting assembly 300 is in the second position, the axes of the two adjusting parts 312 are perpendicular to the axis of the rotating shaft 200, and at this time, the two adjusting parts 312 are arranged opposite each other in the second direction Y. When the adjusting assembly 300 is in the first position, the two adjusting parts 312 are arranged in the axial direction of the rotating shaft 200.

[0072] Optionally, such as Figure 3 and Figure 4 As shown, each connector 110 has a communicating groove 120 and a limiting hole 130. The groove 120 is used to accommodate the rotating part 311, so that the rotating part 311 does not need to occupy the space below the connector 110, but is accommodated inside the connector 110, so that the thickness of the connector assembly 100 can be thinner when the connector assembly 100 is in the folded state. The limiting hole 130 is used for the rotating part 311 to pass through and to restrict the movement of the rotating part 311 in a direction perpendicular to the extension direction of the rotating part 311, so as to prevent the rotating part 311 from disengaging from the connector 110.

[0073] In some optional embodiments, the connector 110 is a one-piece molded structure, and the limiting hole 130 is directly formed on the connector 110. In other optional embodiments, such as Figure 3 and Figure 5As shown, the connector 110 is detachably connected to the limiting member 150. A portion of the limiting member 150 extends into the groove 120 and cooperates with the groove 120 to form a limiting hole 130. By providing the limiting member 150, the replacement of the movable member 400 is facilitated, providing high flexibility. Exemplarily, one groove 120 on the connector 110 can communicate with multiple limiting holes 130. In this case, multiple limiting members 150 are provided accordingly. This embodiment does not limit this.

[0074] For example, in the corresponding connector 110 and adjusting member 310, the rotating part 311 of the adjusting member 310 is rotatably disposed through the limiting hole 130 of the connector 110 and placed in the groove 120. One end of the rotating part 311 is connected to the adjusting part 312, and the other end of the rotating part 311 abuts against the groove wall of the groove 120, so that the groove 120 can restrict the movement of the rotating part 311 in the length direction of the rotating part 311, so as to prevent the rotating part 311 from moving in a direction away from the adjusting part 312, thus ensuring the uniqueness of the position of the rotating part 311 and the adjusting part 312. The limiting hole 130 is used to restrict the movement of the rotating part 311 in a direction perpendicular to the extension direction of the rotating part 311.

[0075] Specifically, the first connector 111 is provided with a first groove and a first limiting hole. The rotating part 311 of the first adjusting member 313 is rotatably inserted through the first limiting hole and placed in the first groove. One end of the rotating part 311 of the first adjusting member 313 abuts against the groove wall of the first groove. The first limiting hole is used to restrict the rotating part 311 of the first adjusting member 313 from moving in a direction perpendicular to the extension direction of the rotating part 311.

[0076] The second connector 112 is provided with a second groove and a second limiting hole. The rotating part 311 of the second adjusting member 314 is rotatably inserted through the second limiting hole and placed in the second groove. One end of the rotating part 311 of the second adjusting member 314 abuts against the groove wall of the second groove. The second limiting hole is used to restrict the rotating part 311 of the second adjusting member 314 from moving in a direction perpendicular to the extension direction of the rotating part 311.

[0077] Optionally, the folding structure also includes a movable member 400. The connector 110 is provided with a receiving groove 140 that cooperates with the movable member 400. The movable member 400 can be placed in the receiving groove 140 so that it can be stored without occupying the external space of the connector 110, but is housed inside the connector 110, further reducing the size of the folding structure.

[0078] In some optional embodiments, each rotating part 311 is connected to a movable member 400 at the end opposite to the adjusting part 312. That is, the number of movable members 400 is the same as the number of adjusting members 310 and they correspond one-to-one. Each movable member 400 is connected to the rotating part 311 of its corresponding adjusting member 310. The receiving groove 140 corresponds one-to-one with the movable member 400. When the adjusting assembly 300 is in the first position, such as Figure 4 As shown, the movable part 400 is placed in the corresponding receiving slot 140; when the adjusting component 300 is in the second position, as... Figure 3 As shown, the movable member 400 is located outside the corresponding receiving slot 140. The movable member 400 rotates synchronously with the adjusting member 310 connected to it relative to the connecting member 110 to achieve movement between two positions. In some optional embodiments, the movable member 400 can be a wheel or a support rod, and when the adjusting member 300 is in the second position, the connecting member 100 can be supported by the wheel or the support rod.

[0079] It should be noted that since the movable member 400 can move outside the receiving groove 140, the adjusting member 310 connected to it can be driven to rotate relative to the connecting member 110, thereby realizing the switching of the adjusting component 300 between the first position and the second position. For example, the connecting member 110 may also be provided with a handle groove communicating with the receiving groove 140 to facilitate gripping the movable member 400. It is understood that the volume of the receiving groove 140 may also be larger than the volume of the movable member 400, which would also facilitate gripping the movable member 400.

[0080] Specifically, the rotating part 311 of the first adjusting member 313 is connected to a first movable member (not shown in the figure), and the first connecting member 111 is provided with a first receiving groove 140. When the adjusting component 300 is in the first position, the first movable member is placed in the first receiving groove 140. When the adjusting component 300 is in the second position, the first movable member is located outside the first receiving groove 140.

[0081] The rotating part 311 of the second adjusting member 314 is connected to a second movable member (not shown in the figure). The second connecting member 112 is provided with a second receiving groove 140. When the adjusting component 300 is in the first position, the second movable member is placed in the second receiving groove 140. When the adjusting component 300 is in the second position, the second movable member is located outside the second receiving groove 140.

[0082] For example, both the groove 120 and the receiving groove 140 are provided on the bottom surface 101 of the connector 110, so that the bearing surface 102 of the connector 110 can be relatively flat, so as to be able to bear large and small objects and have a wide range of applications.

[0083] In some alternative embodiments, the movable member 400 may not be connected to the end of the rotating part 311 away from the adjusting part 312, but instead, the movable member 400 may be movably connected to the connecting assembly 100. Specifically, both the movable member 400 and the receiving groove 140 are provided. When the adjusting assembly 300 is in the first position, the movable member 400 is placed in the receiving groove 140; when the adjusting assembly 300 is in the second position, the movable member 400 is located outside the receiving groove 140. It should be noted that, as Figure 4 As shown, the movable part 400 at this time is the push rod 10, corresponding to, as Figure 3 As shown, the receiving slot 140 at this time is the push rod storage slot 160. By storing the push rod 10 in the push rod storage slot 160, it is convenient for the push rod 10 to be stored in the push rod storage slot 160 when the trolley is in the folded state, preventing the push rod 10 from occupying extra space, thereby making the size of the folded trolley smaller.

[0084] Optionally, the push rod 10 is rotatably connected to the first connector 111 of the connecting assembly 100, and is rotatable to the push rod storage slot 160 and out of the push rod storage slot 160.

[0085] For example, the push rod storage groove 160 is provided on the bottom surface 101 of the connector 110, so that when the push rod 10 is stored in the push rod storage groove 160, the two connectors 110 can cooperate with each other to limit the push rod 10 in the groove depth direction of the push rod storage groove 160 to prevent the push rod 10 from falling out.

[0086] In some alternative embodiments, the bottom surface 101 of the connector 110 may also have multiple weight-reducing grooves (not shown in the figure), so that the weight of the folded structure can be reduced.

[0087] Optionally, such as Figure 6 As shown, when the connecting assembly 100 is in the folded state, the axis of the rotating shaft 200 is located on one side of the connecting assembly 100 in the first direction X. That is, part of the rotating shaft 200 is exposed in the connecting assembly 100, so that the distance between the two bottom surfaces 101 of the pair of connectors 110 is not affected by the diameter of the rotating shaft 200, and the two bottom surfaces 101 can be closer to ensure the folding effect.

[0088] For example, when the connecting component 100 is in the extended state, such as Figure 4 As shown, the axis of the rotating shaft 200 is located on one side of the connecting assembly 100 in the second direction Y, specifically on the side of the bottom surface 101 away from the bearing surface 102, so that the bearing surface 102 can be relatively flat and will not bulge due to the setting of the rotating shaft 200, which is convenient for use.

[0089] In some alternative embodiments, the position of the rotation shaft 200 is such that when the connecting assembly 100 is in the deployed state, as... Figure 1As shown, the opposite end faces of a pair of connectors 110 abut against each other, further improving the flatness of the plane containing the two bearing surfaces 102.

[0090] Wherein, any two of the axial direction of the rotation shaft 200, the first direction X, and the second direction Y are perpendicular to each other. For example, one of the axial direction of the rotation shaft 200 and the first direction X may be the length direction of the connecting component 100 and the other may be the width direction, and the second direction Y may be the thickness direction of the connecting component 100.

[0091] Optionally, the folding mechanism further includes a locking structure (not shown) disposed between the adjusting component 300 and the connecting component 100. The locking structure is used to limit the adjusting component 300 to a first position and / or a second position, so that the adjusting component 300 can be maintained in the first position or the second position, thereby improving the stability of the folding structure.

[0092] The locking structure of the adjusting component can have various specific structures, and this embodiment does not limit this. In some optional embodiments, the locking structure can be locked by a pin groove or by a pin hole. For example, the locking structure includes a first locking groove (not shown in the figure) provided on the adjusting component 300 and a second locking groove (not shown in the figure) provided on the connecting component 100. The locking structure also includes a locking pin that can be placed in the first and second locking grooves. When the adjusting component 300 is in the first position, the locking pin is inserted into the first and second locking grooves to achieve locking. The connecting component 100 may also be provided with a third locking groove. When the adjusting component 300 is in the second position, the locking pin can be inserted into the first and third locking grooves to achieve locking.

[0093] This embodiment provides a support device, including the folding structure described above. The support device provided in this embodiment can be folded to have a smaller volume.

[0094] In some alternative embodiments, such as Figure 1 As shown, the supporting device is a trolley, wherein the connecting component 100 is the base plate of the trolley, and the movable part 400 of the folding structure is the wheel of the trolley or the push rod 10 of the trolley.

[0095] The carrying device provided in this embodiment allows the wheels to be stored in the receiving groove 140, enabling the trolley to be smaller in size. Furthermore, the wheels are connected to the adjusting component 310. When the adjusting component 300 is in the first position, the wheels are located in the receiving groove 140, allowing the connecting component 100 to switch from an unfolded state to a folded state. When the adjusting component 300 is in the second position, the wheels are outside the receiving groove 140, supporting the connecting component 100, which is then confined to the unfolded state by the adjusting component 300 for normal use. It is evident that when the wheels are upright, the connecting component 100 cannot be folded; it can only be folded after the wheels are flipped into the receiving groove 140. Unlocking the connecting component 100 can be achieved simply by operating the wheels, without requiring other steps, reducing the difficulty of folding and unfolding operations and improving operational convenience.

[0096] Please continue reading Figure 1 The push rod 10 of the trolley is connected to one of a pair of connectors 110, and the push rod 10 can extend, retract, and rotate relative to the connector 110 to achieve folding and storage, further reducing the size of the trolley after folding, which is beneficial for the storage, transportation, and handling of the trolley. In this embodiment, after the push rod 10 is axially retracted to its minimum size, it can rotate into the push rod storage slot 160 for storage. It can be seen that in this embodiment, both the wheels and the push rod of the trolley can be stored, making the folding more thorough.

[0097] It is understood that the supporting device can also be a campervan, a children's bed or other products, and this embodiment does not limit it.

[0098] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. Folded structure, characterized in that, The application relates to a folding structure, comprising: a connecting assembly, comprising a pair of connecting members rotatably connected through a rotating shaft, and having a folded state and an unfolded state; an adjusting assembly movably connected to the connecting assembly and having a first position and a second position relative to the connecting assembly; when the adjusting assembly is in the first position, the connecting assembly can be switched between the folded state and the unfolded state; when the adjusting assembly is in the second position, the center line of the adjusting assembly intersects with the axis of the rotating shaft to limit the connecting assembly in the unfolded state.

2. The folded structure of claim 1, wherein, When the adjusting assembly is in the first position, the center line of the adjusting assembly is parallel or collinear with the axis of the rotating shaft; the adjusting assembly comprises a pair of adjusting members, one-to-one rotatably connected with the connecting members, and the pair of adjusting members rotate synchronously to move the adjusting assembly between the first position and the second position, and the pair of adjusting members are rotatably connected around the center line of the adjusting assembly.

3. The folded structure of claim 2, wherein, the rotating shaft comprises a connecting region and a non-connecting region, and the adjusting members comprise connecting rotating parts and adjusting parts, the rotating parts are one-to-one rotatably connected with the connecting members, and the two adjusting parts are arranged in the same non-connecting region.

4. The folded structure of claim 3, wherein, the adjusting parts are in a cylindrical shape; when the adjusting assembly is in the first position, the axes of the two adjusting parts are collinear with the axis of the rotating shaft; when the adjusting assembly is in the second position, the axes of the two adjusting parts are collinear and intersect with the axis of the rotating shaft.

5. The folded structure of claim 3, wherein, the connecting members are provided with communicating grooves and limiting holes; in the corresponding connecting members and adjusting members, the rotating part of the adjusting member is rotatably arranged in the limiting hole of the connecting member and arranged in the groove, one end of the rotating part is connected with the adjusting part, the other end of the rotating part abuts against the groove wall, and the limiting hole is used for limiting the movement of the rotating part in the direction perpendicular to the extending direction of the rotating part.

6. The folded structure of claim 5, wherein, the folding structure further comprises a movable member, the connecting members are provided with accommodating grooves matched with the movable member, the movable member is arranged in the accommodating groove when the adjusting assembly is in the first position, and the movable member is arranged outside the accommodating groove when the adjusting assembly is in the second position; one movable member is connected to one end of each rotating part away from the adjusting part; or the movable member is movably connected with the connecting assembly.

7. The folded structure of claim 6, wherein, when the connecting assembly is in the folded state, the pair of connecting members have oppositely arranged bottom surfaces and oppositely arranged bearing surfaces; in the unfolded state, the two bearing surfaces are coplanar; the grooves and the accommodating grooves are arranged on the bottom surfaces of the connecting members.

8. The folded structure according to any one of claims 1-7, characterized in that when the connecting assembly is in the folded state, the axis of the rotating shaft is located on one side of the connecting assembly in a first direction; when the connecting assembly is in the unfolded state, the axis of the rotating shaft is located on one side of the connecting assembly in a second direction; any two of the direction of the axis of the rotating shaft, the first direction and the second direction are perpendicular to each other; and / or, The folding structure further comprises a locking structure arranged between the adjusting assembly and the connecting assembly, for limiting the adjusting assembly in the first position and / or the second position.

9. A carrier device, characterized by The folding structure according to any one of claims 1-8.

10. The load bearing device of claim 9, wherein, The bearing device is a stroller; the connecting assembly is a bottom plate of the stroller, and the movable piece of the folding structure is a wheel of the stroller.

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