Folding device and scooter

Abstract

The utility model provides a folding device and a scooter, and the folding device comprises an auxiliary folding mechanism which is used for installing a bearing body; the first folding mechanism is connected with the auxiliary folding mechanism; the auxiliary folding mechanism and the first folding mechanism are both mounted on the first frame; the second bicycle frame is rotationally connected with the first bicycle frame, and the end, away from the auxiliary folding mechanism, of the first folding mechanism is rotationally installed on the second bicycle frame; when the second frame rotates relative to the first frame, the first folding mechanism drives the auxiliary folding mechanism to rotate relative to the first frame so as to synchronously achieve folding or unfolding of the bearing body, the first frame and the second frame. The folding device is easy to operate, and the folding efficiency and the folding effect are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicles, and in particular relates to a folding device and a scooter. Background Art

[0002] Currently, foldable scooters can be folded when needed to reduce their size, making them easy to carry and store, and suitable for a variety of travel scenarios. For example, users can fold a foldable scooter and put it in public transportation, an office, or a home, avoiding storage space restrictions and improving flexibility and convenience. In the related art, foldable scooters often have a rotating connection structure between the front and the frame or the rear and the frame to fold the scooter, and each folding position requires a folding operation. In this way, the scooter can only be folded after multiple folding operations, resulting in low folding efficiency and complicated operation. At the same time, the folding scooters in the related art also have the problem of insufficient folding, large volume after folding, and poor folding effect. Summary of the Invention

[0003] The utility model aims to solve the technical problems of low folding efficiency of folding devices in the prior art and provides a folding device and a mobility scooter.

[0004] In view of the above technical problems, an embodiment of the present invention provides a folding device, comprising:

[0005] An auxiliary folding mechanism for installing the carrier;

[0006] a first folding mechanism connected to the auxiliary folding mechanism;

[0007] a first frame, the auxiliary folding mechanism and the first folding mechanism being mounted on the first frame;

[0008] a second frame, the second frame being rotatably connected to the first frame, and an end of the first folding mechanism away from the auxiliary folding mechanism being rotatably mounted on the second frame;

[0009] When the second frame rotates relative to the first frame, the auxiliary folding mechanism is driven by the first folding mechanism to rotate relative to the first frame, so as to synchronously realize the folding or unfolding of the carrier, the first frame and the second frame.

[0010] Furthermore, the first folding mechanism includes a first connecting rod and a first link assembly rotatably mounted on the first frame; the first connecting rod is rotatably connected between the first link assembly and the carrier;

[0011] When the second frame rotates relative to the first frame, the first connecting rod assembly is driven to swing, and the supporting body is driven to rotate relative to the first frame through the first connecting rod.

[0012] Furthermore, the first connecting rod assembly includes:

[0013] a first connecting rod rotatably mounted on the first frame;

[0014] a second connecting rod, one end of the second connecting rod being rotatably mounted on the first frame, and the other end of the second connecting rod being rotatably connected to the first connecting rod;

[0015] a third connecting rod, rotatably connected between the first connecting rod and the second connecting rod;

[0016] When the first connecting rod and the second connecting rod swing in the same direction relative to the first frame, the supporting body is driven to rotate relative to the first frame through the first connecting rod.

[0017] Furthermore, the first connecting rod assembly further includes a first active rod; one end of the first active rod is rotatably mounted on the second frame, and the other end of the first active rod is rotatably connected to a first hinge point; the first hinge point is a rotational connection point between the first connecting rod and the third connecting rod;

[0018] When the second frame rotates relative to the first frame, the first connecting rod assembly is driven to swing via the first active rod, and then the supporting body is driven to rotate relative to the first frame via the first connecting rod.

[0019] Furthermore, the auxiliary folding mechanism includes:

[0020] A fourth connecting rod is used for mounting the carrier;

[0021] a fifth connecting rod, one end of which is rotatably mounted on the first frame, and the other end of which is rotatably connected to the fourth connecting rod; an end of the first folding mechanism away from the second frame is rotatably connected to the fifth connecting rod;

[0022] A sixth connecting rod; one end of the sixth connecting rod is rotatably mounted on the first frame, and the other end of the sixth connecting rod is rotatably connected to the fourth connecting rod;

[0023] When the second frame rotates relative to the first frame, the first folding mechanism drives the fifth link and the sixth link to swing in the same direction relative to the first frame, so as to synchronously realize the folding or unfolding of the carrier, the first frame and the second frame.

[0024] Furthermore, the folding device further includes a second folding mechanism and a mounting seat, the mounting seat is rotatably mounted on the second frame, and the mounting seat is used to mount the vehicle head; the second folding mechanism is mounted on the second frame and connected between the mounting seat and the first frame;

[0025] When the second frame rotates relative to the first frame, while the first folding mechanism drives the carrier to rotate relative to the first frame, the second folding mechanism also drives the mounting seat to rotate relative to the second frame, so as to synchronously realize the folding or unfolding of the vehicle head, the carrier, the first frame and the second frame.

[0026] Furthermore, the second folding mechanism includes a second connecting rod and a second link assembly rotatably mounted on the second frame, and the second connecting rod is rotatably connected between the second link assembly and the mounting seat;

[0027] When the second frame rotates relative to the first frame, the second connecting rod assembly is driven to swing, and the mounting seat is driven to rotate relative to the second frame through the second connecting rod.

[0028] Furthermore, the second connecting rod assembly includes:

[0029] a seventh connecting rod, one end of which is rotatably mounted on the second frame, and the other end of which is rotatably connected to the second connecting rod;

[0030] an eighth connecting rod rotatably mounted on the second frame;

[0031] a ninth connecting rod, rotatably connected between the seventh connecting rod and the eighth connecting rod;

[0032] When the seventh connecting rod and the eighth connecting rod swing in the same direction relative to the second frame, the mounting seat is driven to rotate relative to the second frame through the second connecting rod.

[0033] Furthermore, the second connecting rod assembly further includes a second active rod; one end of the second active rod is rotatably mounted on the first frame, and the other end of the second active rod is rotatably connected to a second hinge point; the second hinge point is a rotational connection point between the eighth connecting rod and the ninth connecting rod;

[0034] When the second frame rotates relative to the first frame, the second connecting rod assembly is driven to swing via the second active rod, and then the mounting seat is driven to rotate relative to the second frame via the second connecting rod.

[0035] Furthermore, the folding device also includes a folding drive assembly; the folding drive assembly is connected between the first frame and the second frame and is used to drive the second frame to rotate relative to the first frame.

[0036] Furthermore, the folding drive assembly includes a driving member, a twelfth connecting rod and a bending rod;

[0037] The driving member includes a fixed end and a driving end; the fixed end is fixedly mounted on the first frame, and the bending rod is rotatably connected between the second frame and the driving end; one end of the twelfth connecting rod is rotatably mounted on the first frame, and the other end of the twelfth connecting rod is rotatably connected to the bending rod;

[0038] The driving end is used to drive the bending rod and the twelfth connecting rod to drive the second frame to rotate relative to the first frame.

[0039] Furthermore, the folding device also includes a control device, which is connected to the folding drive assembly by signal. The control device controls the folding drive assembly to fold or unfold the carrier, the first frame and the second frame with one click.

[0040] A mobility scooter comprises a vehicle head, a carrier, and the above-mentioned folding device, wherein the carrier is mounted on the auxiliary folding mechanism, and the vehicle head is mounted on an end of the folding device away from the carrier.

[0041] Furthermore, the mobility scooter further comprises support wheels, and a support and folding mechanism mounted on the first frame; the support and folding mechanism is connected between the support wheels and the first folding mechanism;

[0042] When the first folding mechanism drives the auxiliary folding mechanism to rotate relative to the first frame, the supporting wheel is driven to rotate to a preset supporting angle through the supporting folding mechanism to support the vehicle.

[0043] Furthermore, the supporting and folding mechanism includes a third connecting rod, a tenth connecting rod and an eleventh connecting rod; the third connecting rod is mounted on the first frame; the tenth connecting rod is rotatably connected between the first folding mechanism and the eleventh connecting rod; the end of the third connecting rod away from the first frame is rotatably connected to the eleventh connecting rod, and the supporting wheel is rotatably mounted on the end of the eleventh connecting rod away from the tenth connecting rod.

[0044] Furthermore, the carrier is a seat, a carrying device, or a robot.

[0045] The folding device of the present invention includes an auxiliary folding mechanism for installing a carrier; a first folding mechanism, connected to the auxiliary folding mechanism; a first frame, on which the auxiliary folding mechanism and the first folding mechanism are both installed; a second frame, which is rotatably connected to the first frame, and on which an end of the first folding mechanism away from the auxiliary folding mechanism is rotatably installed; when the second frame rotates relative to the first frame, the auxiliary folding mechanism is driven to rotate relative to the first frame by the first folding mechanism, so as to synchronously realize the folding or unfolding of the carrier, the first frame and the second frame.

[0046] In the present invention, the carrier, the first frame and the second frame are connected by the auxiliary folding mechanism and the first folding mechanism, so that when the second frame rotates counterclockwise or clockwise relative to the first frame, the second frame also drives the auxiliary folding mechanism to rotate in the same direction through the first folding mechanism, thereby realizing the folding or unfolding between the first frame and the second frame while also realizing the folding or unfolding between the carrier and the first frame; in the present invention, folding or unfolding multiple components only needs to be operated once, that is, one folding process can synchronously realize the folding of the carrier, the first frame and the second frame; one unfolding process can synchronously realize the unfolding of the carrier, the first frame and the second frame; its operation is simple and improves the folding efficiency. In addition, in the present invention, the second frame and the auxiliary folding mechanism are arranged at both ends of the first frame, and during the folding process, the second frame and the auxiliary folding mechanism can rotate in the same direction relative to the first frame at both ends of the first frame, so that the second frame and the auxiliary folding mechanism are respectively folded at the opposite ends of the first frame, so as to achieve full folding of the folding device, and the carrier, the auxiliary folding mechanism, the first frame and the second frame will not interfere with each other, thereby reducing the volume of the folding device after folding and improving the folding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0048] Figure 1 It is a structural schematic diagram of a folding device provided in one embodiment of the utility model.

[0049] Figure 2 It is a partial structural diagram of a folding device provided in one embodiment of the utility model.

[0050] Figure 3 It is a partial structural diagram of a folding device provided in another embodiment of the present utility model.

[0051] Figure 4 It is a partial structural diagram of a folding device provided in yet another embodiment of the present utility model.

[0052] The reference numerals in the specification are as follows:

[0053] 100, auxiliary folding mechanism; 110, fourth link; 120, fifth link; 130, sixth link; 200, first folding mechanism; 210, first link assembly; 211, first link; 212, second link; 213, third link; 214, first active rod; 220, first connecting rod; 300, first frame; 400, second frame; 500, second folding mechanism; 510, second link assembly; 511, seventh link; 512, eighth connecting rod; 513, ninth connecting rod; 514, second active rod; 520, second connecting rod; 600, mounting seat; 700, support wheel; 800, support folding mechanism; 810, third connecting rod; 820, tenth connecting rod; 830, eleventh connecting rod; 900, folding drive assembly; 910, drive member; 911, fixed end; 912, drive end; 920, twelfth connecting rod; 930, bending rod; 1000, carrier. DETAILED DESCRIPTION

[0054] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0055] It should be understood that the terms "upper", "lower", "left", "right", "front", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0056] like Figure 1 As shown, an embodiment of the present invention provides a folding device, comprising:

[0057] The auxiliary folding mechanism 100 is used to install a carrier 1000. The carrier 1000 is fixedly mounted on the auxiliary folding mechanism 100. In some embodiments, the carrier 1000 includes but is not limited to a seat, a carrying device, or a robot.

[0058] The first folding mechanism 200 is connected to the auxiliary folding mechanism 100. The connection between the first folding mechanism 200 and the auxiliary folding mechanism 100 includes but is not limited to a rotation connection.

[0059] The first frame 300, the auxiliary folding mechanism 100 and the first folding mechanism 200 are all mounted on the first frame 300. The auxiliary folding mechanism 100 and the first folding mechanism 200 are connected to the first frame 300 in a manner including but not limited to a rotational connection.

[0060] The second frame 400 is rotatably connected to the first frame 300 , and one end of the first folding mechanism 200 away from the auxiliary folding mechanism 100 is rotatably mounted on the second frame 400 .

[0061] When the second frame 400 rotates relative to the first frame 300, the first folding mechanism 200 drives the auxiliary folding mechanism 100 to rotate relative to the first frame 300, thereby synchronously folding or unfolding the carrier 1000, the first frame 300, and the second frame 400. In the present invention, the first frame 300 may refer to the rear frame of the scooter, and the second frame 300 may refer to the front frame of the scooter.

[0062] In this embodiment, the folding device can be used on a mobility scooter, so that the mobility scooter can be folded or unfolded when needed. The carrier 1000 can be installed at an end of the auxiliary folding mechanism 100 away from the first frame 300. When the mobility scooter needs to be folded, the second frame 400 can be rotated counterclockwise relative to the first frame 300, thereby folding the second frame 400 and the first frame 300 together. While the second frame 400 and the first frame 300 are folding together, the second frame 400 also drives the auxiliary folding mechanism 100 to rotate counterclockwise relative to the first frame 300 through the first folding mechanism 200, thereby folding the carrier 100 installed on the auxiliary folding mechanism 100 together with the first frame 300. During the above-mentioned folding process, the second frame 400 and the auxiliary folding mechanism 100 are respectively located at the two ends of the first frame 300, and respectively rotate counterclockwise relative to the first frame 300, so that the second frame 400 and the auxiliary folding mechanism 100 are respectively folded at the opposite ends of the first frame 300, so as to achieve full folding of the folding device, and there is no mutual interference between the carrier 1000, the auxiliary folding mechanism 100, the first frame 300 and the second frame 400, thereby reducing the volume of the folding device after folding and improving the folding effect.

[0063] It is understood that when the mobility scooter needs to be unfolded, the second frame 400 can be rotated clockwise relative to the first frame 300, thereby unfolding the second frame 400 and the first frame 300. Simultaneously with the unfolding of the second frame 400 and the first frame 300, the second frame 400 also drives the auxiliary folding mechanism 100 to rotate clockwise relative to the first frame 300 via the first folding mechanism 200, thereby unfolding the carrier 1000 mounted on the auxiliary folding mechanism 100 relative to the first frame 300. During the unfolding process, the second frame 400 and the auxiliary folding mechanism 100 are respectively located at opposite ends of the first frame 300 and rotate clockwise relative to the first frame 300. Therefore, the second frame 400 and the auxiliary folding mechanism 100 can be unfolded simultaneously relative to the first frame 300 without interfering with each other. It is understood that the first frame 300 and the second frame 400 are approximately coplanar when unfolded, ensuring the smoothness of the scooter during use and making it easier for the user to place their feet while driving. The first frame 300 may be hollow, allowing for partial or complete installation of the first folding mechanism 200 within the first frame 300, preventing the first folding mechanism 200 from being completely exposed outside the first frame 300, thereby affecting the smoothness and aesthetics of the first frame 300 and preventing damage thereto. Furthermore, the hollow structure of the first frame 300 allows the auxiliary folding mechanism 100 to be retracted into the first frame 300 during folding, thereby reducing the volume of the folded folding mechanism.

[0064] Furthermore, the auxiliary folding mechanism 100 and the first folding mechanism 200 may be a multi-link structure, so that the folding or unfolding of the carrier 1000 is achieved through the mutual transmission of motion between the multi-links. The auxiliary folding mechanism 100 and the first folding mechanism 200 may be rotatably connected to the first frame 300.

[0065] It can be understood that the auxiliary folding mechanism 100 and the first folding mechanism 200 are both installed on the first frame 300, that is, the frames in the auxiliary folding mechanism 100 and the first folding mechanism 200 (that is, the parts of the auxiliary folding mechanism 100 and the first folding mechanism 200 that are stationary relative to the first frame 300) can be fixedly connected to the first frame 300, and the frame can be installed on the first frame 300 or be integrally formed with the first frame 300.

[0066] Furthermore, the rotation shaft (hereinafter referred to as the rotation shaft) that is rotatably connected between the second frame 400 and the first frame 300 Figure 3The third rotation axis a) shown in FIG can be located at an end edge of the second frame 400 and the first frame 300 (e.g., the bottom edge of the connection between the second frame 400 and the first frame 300). This allows the second frame 400 to be fully folded relative to the first frame 300 (i.e., a rotation angle of nearly 360 degrees) without interference between the two during rotation. Furthermore, the connection point between the second frame 400 and the first folding mechanism 200 can be located according to actual circumstances, such as at a location on the second frame 400 other than the aforementioned rotation axis.

[0067] In the above embodiment of the present invention, the supporting body 1000, the first frame 300 and the second frame 400 are connected by the auxiliary folding mechanism 100 and the first folding mechanism 200, so that when the second frame 400 rotates counterclockwise or clockwise relative to the first frame 300, the second frame 400 drives the first folding mechanism 200 to rotate in the same rotation direction, so that the first folding mechanism 200 drives the auxiliary folding mechanism 100 to rotate in the same rotation direction as the second frame 400, thereby achieving the folding or unfolding between the first frame 300 and the second frame 400 while also achieving the folding or unfolding between the supporting body 1000 and the first frame 300; in the present invention, folding or unfolding multiple components only needs to be operated once, that is, one folding process can simultaneously achieve the folding of the supporting body 1000, the first frame 300 and the second frame 400; one unfolding process can simultaneously achieve the unfolding of the supporting body 1000, the first frame 300 and the second frame 400; the operation is simple and the folding efficiency is improved. In addition, in the present invention, the second frame 400 and the auxiliary folding mechanism 100 are arranged at both ends of the first frame 300, and during the folding process, the second frame 400 and the auxiliary folding mechanism 100 can rotate in the same direction relative to the first frame 300 at both ends of the first frame 300, so that the second frame 400 and the auxiliary folding mechanism 100 are respectively folded at the opposite ends of the first frame 300, so as to achieve full folding of the folding device, and the carrier 1000, the auxiliary folding mechanism 100, the first frame 300 and the second frame 400 will not interfere with each other, thereby reducing the volume of the folding device after folding and improving the folding effect.

[0068] like Figure 2As shown, in one embodiment, the first folding mechanism 200 includes a first connecting rod 220 and a first link assembly 210 mounted on the first frame 300; the first connecting rod 220 is rotatably connected between the first link assembly 210 and the carrier 1000; when the second frame 400 rotates relative to the first frame 300, the first link assembly 210 is driven to swing, thereby driving the carrier 1000 to rotate relative to the first frame 300 via the first connecting rod 220. The first link assembly 210 is mounted on the first frame 300. The first connecting rod 220 is rotatably connected between the first link assembly 210 and the carrier 1000, so that the carrier 1000 can rotate in the same direction as the first link assembly 210 due to the connection between the first connecting rod 220. The shape and size of the first link assembly 210 and the first connecting rod 220 can be set according to actual conditions, as long as the second frame 400 and the first frame 300 can be folded, the first link assembly 210 and the first connecting rod 220 can drive the carrier 1000 and the carrier 1000 to be fully folded synchronously with the first frame 300.

[0069] Furthermore, the first connecting rod 220 is connected to the carrier 1000 through the auxiliary folding mechanism 100; the rotation axis for rotationally connecting the auxiliary folding mechanism 100 and the first frame 300 is the first rotation axis; the rotation axis for rotationally connecting the first connecting rod assembly 210 and the first frame 300 is the second rotation axis; the rotation axis for rotationally connecting the first frame 300 and the second frame 400 is the third rotation axis; it is understandable that the above-mentioned first rotation axis, second rotation axis and third rotation axis can be a single axis, or can include multiple axes parallel to each other; for example, Figure 3 The third rotation axis a shown in is a single axis, and Figure 2 The first rotation axis c and the second rotation axis b shown in the figure are each composed of at least two parallel axes. It is understood that the first rotation axis c, the second rotation axis b, and the third rotation axis a are all arranged in parallel, thereby ensuring that the carrier 1000, the first frame 300, and the second frame 400 are driven sequentially to transmit motion smoothly without causing abnormal conditions such as jamming and interference.

[0070] It will be appreciated that in this embodiment, the rotational axis connecting the first connecting rod 220 to the first link assembly 210 is the fourth rotational axis, and the rotational axis connecting the first connecting rod 220 to the auxiliary folding mechanism 100 is the fifth rotational axis. The fourth and fifth rotational axes are parallel to each other, allowing rotational motion to be transmitted to each other without interference. Furthermore, the first rotational axis c, the second rotational axis b, the third rotational axis a, the fourth rotational axis, and the fifth rotational axis are all arranged in parallel.

[0071] Furthermore, the auxiliary folding mechanism 100, the first frame 300, the second frame 400, and the first folding mechanism 200 are all symmetrical structures. In one specific embodiment, the auxiliary folding mechanism 100, the first frame 300, the second frame 400, and the first folding mechanism 200 are all symmetrically arranged relative to a common reference plane of symmetry, which is perpendicular to the first rotation axis and passes through the center point of the first rotation axis (the center point of the first rotation axis is the center point between the two intersection points located at the outermost ends of all intersection points between the first rotation axis and the auxiliary folding mechanism 100). It is understood that in some embodiments, the auxiliary folding mechanism 100, the first frame 300, the second frame 400, and the first folding mechanism 200 may also be symmetrically arranged relative to different reference planes. However, these different reference planes must also be approximately coplanar to ensure that the rotational motion between the auxiliary folding mechanism 100, the first folding mechanism 200, the first frame 300, and the second frame 400 is smoothly transmitted without jamming or interference. This arrangement also allows the mobility scooter to maintain balance during travel.

[0072] like Figure 2 As shown, in one embodiment, the first connecting rod assembly 210 includes:

[0073] The first connecting rod 211 is rotatably mounted on the first frame 300; in this embodiment, the first connecting rod assembly 210 is a multi-link structure, wherein the first frame 300 can be used as the frame structure of the first connecting rod assembly 210; the first connecting rod 211 serves as a crank structure in the first connecting rod assembly 210 and is rotatably connected to the first frame 300.

[0074] The second connecting rod 212 has one end rotatably mounted on the first frame 300, and the other end of the second connecting rod 212 is rotatably connected to the first connecting rod 220; that is, the second connecting rod 212 also serves as a crank structure in the first connecting rod assembly 210 and is rotatably connected to the first frame 300.

[0075] The third link 213 is rotatably connected between the first link 211 and the second link 212. When the first link 211 and the second link 212 swing in the same direction relative to the first frame 300, the first connecting rod 220 drives the carrier 1000 to rotate relative to the first frame 300. In other words, the third link 213 serves as a connecting rod structure, rotatably connected to the first link 211 and the second link 212, respectively, to transmit the rotational motion of the first link 211 to the second link 212.

[0076] In this embodiment, the rotation axis of the first connecting rod 211 and the first frame 300 is connected in rotation, and the rotation axis of the second connecting rod 212 and the first frame 300 is connected in rotation in parallel, and both are Figure 2 . Furthermore, the rotation axis for the rotational connection between the first link 211 and the third link 213, as well as the rotation axis for the rotational connection between the second link 212 and the third link 213, are also arranged parallel to the second rotation axis b. This ensures that the first link assemblies 210 do not interfere with each other during the transmission of rotational motion. It is understood that the lengths of the first link 211, the second link 212, or the third link 213, as well as the distance between the two rotation axes in the second rotation axis b, can be set according to actual conditions, as long as the first link assembly 210 can swing when the second frame 400 and the first frame 300 are folded, driving the first connecting rod 220 to move, thereby driving the carrier 1000 and the carrier 1000 to fold synchronously with the first frame 300.

[0077] In one embodiment, the length of the third link 213 is greater than or equal to the length of the first link 211 and the second link 212, thereby ensuring that the rotational motion over a longer distance can be transmitted between the first link 211 and the second link 212 through the third link 213, while also ensuring that the length of the first frame 300 is longer to meet the comfort requirements of the mobility scooter.

[0078] like Figure 2As shown, in one embodiment, the first connecting rod assembly 210 also includes a first active rod 214; one end of the first active rod 214 is rotatably mounted on the second frame 400, and the other end of the first active rod 214 is rotatably connected to the first hinge point; the first hinge point refers to the rotation connection point between the first connecting rod 211 and the third connecting rod 213; when the second frame 400 rotates relative to the first frame 300, the first active rod 214 drives the first connecting rod assembly 210 to swing, and then drives the carrier 1000 to rotate relative to the first frame 300 through the first connecting rod 220.

[0079] It will be appreciated that the first active rod 214 can be used to define the relative position of the second frame 400 and the first link assembly 210 when the second frame 400 and the first frame 300 are fully folded or unfolded, thereby preventing interference between the second frame 400 and the first link assembly 210. Furthermore, the first active rod 214 is rotatably connected between the second frame 400 and the first hinge point, allowing the entire first link assembly 210 to rotate with the second frame 400 and in the same direction as the second frame 400. Consequently, the second frame 400 can be linked to the first link assembly 210 through the provision of the first active rod 214. Furthermore, the third rotation axis c, the rotation axis of the rotational connection between the first active rod 214 and the second frame 400, and the rotation axis of the rotational connection between the first active rod 214 and the first hinge point are parallel to each other, thereby ensuring smooth transmission of rotational motion between the second frame 400 and the first link assembly 210 without interference. The length of the first active rod 214 can be set according to actual conditions, as long as the first active rod 214 can drive the first connecting rod assembly 210 to swing along with the second frame 400 during the folding process of the second frame 400 and the first frame 300, and then drive the carrier 1000 through the first connecting rod 220 and the carrier 1000 to rotate synchronously, so as to achieve full folding between the carrier 1000, the first frame 300 and the second frame 400.

[0080] like Figure 2 As shown, in one embodiment, the auxiliary folding mechanism 100 includes:

[0081] The fourth connecting rod 110 is used to mount the carrier 1000 ; the carrier 1000 is fixedly mounted on the fourth connecting rod 110 .

[0082] The fifth link 120, one end of the fifth link 120 is rotatably mounted on the first frame 300, and the other end of the fifth link 120 is rotatably connected to the fourth link 110; the end of the first folding mechanism 200 away from the second frame 400 is rotatably connected to the fifth link 120; in this embodiment, the auxiliary folding mechanism 100 is also a multi-link structure, wherein the first frame 300 is used as the frame structure of the auxiliary folding mechanism 100; the fifth link 120 is rotatably connected to the first frame 300 as a rocker structure.

[0083] The sixth link 130; one end of the sixth link 130 is rotatably mounted on the first frame 300, and the other end of the sixth link 130 is rotatably connected to the fourth link 110; that is, the sixth link 130 also serves as a rocker structure and is rotatably connected to the first frame 300; the fourth link 110 serves as a link structure and is rotatably connected to the fifth link 120 and the sixth link 130, respectively, so that the fifth link 120 and the sixth link 130 rotate synchronously.

[0084] When the second frame 400 rotates relative to the first frame 300, the first folding mechanism 200 drives the fifth link 120 and the sixth link 130 to swing in the same direction relative to the first frame 300, so as to synchronously realize the folding or unfolding of the carrier 1000, the first frame 300 and the second frame 400.

[0085] In this embodiment, the rotation axis of the fifth link 120 and the first frame 300 is connected in rotation, and the rotation axis of the sixth link 130 and the first frame 300 is connected in rotation in parallel, and both are Figure 2 A portion of the first rotation axis c shown in .

[0086] The rotation axis of the rotational connection between the fifth link 120 and the fourth link 110, and the rotation axis of the rotational connection between the sixth link 130 and the fourth link 110, are also arranged parallel to the first rotation axis c. This prevents interference between the auxiliary folding mechanisms 100 during the mutual transmission of rotational motion. The length of the fourth link 110, the fifth link 120, or the sixth link 130, as well as the distance between the two rotation axes in the first rotation axis c, can be set according to actual conditions, as long as the height requirements of the carrier 1000 are met. At the same time, when the second frame 400 and the first frame 300 are folded, the auxiliary folding mechanism 100 can achieve synchronous folding of the carrier 1000 and the first frame 300. The fifth link 120 and the sixth link 130 may be parallel to each other or not, and a first line connecting the upper end point of the fifth link 120 and the upper end point of the sixth link 130, and a second line connecting the lower end point of the fifth link 120 and the lower end point of the sixth link 130 may also be parallel to each other or not. In a preferred embodiment, Figure 2 As shown, the fifth link 120 and the sixth link 130 are equal and parallel to each other, and the first connecting line and the second connecting line are equal and parallel to each other. At this time, the auxiliary folding mechanism 100 is a parallelogram connecting rod mechanism. At this time, when the fifth link 120 and the sixth link 130 swing in the same direction relative to the first frame 300, the upper surface of the fourth link 110 can remain basically parallel to the second frame 400. In this way, after folding, the carrier 1000 installed on the upper surface of the fourth link 110 is also basically parallel to the second frame 400 without a large angle. In this way, there will be no large folding gap between the carrier 1000 and the second frame 400 after folding, thereby reducing the volume after folding.

[0087] like Figure 3 As shown, in one embodiment, the folding device further includes a second folding mechanism 500 and a mounting seat 600, the mounting seat 600 being rotatably mounted on the second frame 400, and the mounting seat 600 being used to mount the vehicle head; the second folding mechanism 500 is mounted on the second frame 400 and connected between the mounting seat 600 and the first frame 300; when the second frame 400 rotates relative to the first frame 300, while the first folding mechanism 200 drives the carrier 1000 to rotate relative to the first frame 300, the second folding mechanism 500 also drives the mounting seat 600 to rotate relative to the second frame 400, so as to synchronously realize the folding or unfolding of the vehicle head, the carrier 1000, the first frame 300 and the second frame 400.

[0088] It can be understood that the second frame 400 can be a hollow structure so that part or all of the second folding mechanism 500 can be installed inside the second frame 400, avoiding the second folding mechanism 500 from being completely exposed outside the second frame 400, thereby affecting the flatness and aesthetics of the second frame 400 and avoiding damage to the second frame 400; at the same time, the second frame 400 is a hollow structure, which can also allow the mounting seat 600 to be retracted into the second frame 400 when folded, thereby reducing the volume of the folding device after folding.

[0089] Furthermore, the second folding mechanism 500 may be a multi-link structure, so that the front of the vehicle can be folded or unfolded by mutual transmission of motion between the multi-links. The second folding mechanism 500 may be rotatably connected to the second vehicle frame 400.

[0090] The second folding mechanism 500 and the mounting seat 600 are both symmetrical structures. In a specific embodiment, the second folding mechanism 500 and the mounting seat 600 are symmetrically arranged relative to the same reference symmetry plane, which is the reference plane perpendicular to the first rotation axis and passing through the center point of the first rotation axis. It is understood that in some embodiments, the second folding mechanism 500 and the mounting seat 600 can also be symmetrically arranged relative to different reference planes, but the different reference planes must also be roughly in the same plane as the reference symmetry plane to ensure that the rotational motion between the second folding mechanism 500, the mounting seat 600, the auxiliary folding mechanism 100, the first folding mechanism 200, the first frame 300, and the second frame 400 is smoothly transmitted without jamming or interference, and the above arrangement can maintain balance during driving.

[0091] It can be understood that the second folding mechanism 500 is installed on the second frame 400, that is, the frame in the second folding mechanism 500 (that is, the part of the second folding mechanism 500 that is stationary relative to the second frame 400) can be fixedly connected to the second frame 400, and the frame can be installed on the second frame 400 or be integrally formed with the second frame 400.

[0092] Furthermore, the rotation axis (also referred to as the sixth rotation axis) for rotationally connecting the first frame 300 and the second folding mechanism 500 can be set at a position other than the third rotation axis a on the first frame 300 according to actual conditions.

[0093] In the above embodiment of the present invention, the supporting body 1000, the first frame 300, the second frame 400 and the vehicle head are connected by the mounting seat 600, the auxiliary folding mechanism 100, the first folding mechanism 200 and the second folding mechanism 500, so that when the second frame 400 rotates counterclockwise or clockwise relative to the first frame 300, the second frame 400 drives the first folding mechanism 200 to rotate in the same rotation direction as the second frame 400. At the same time, the first frame 300 also synchronously drives the second folding mechanism 500 to rotate in the same rotation direction as the first frame 300, thereby achieving the first vehicle. When the vehicle head, the carrier 1000, the first frame 300 and the second frame 400 are folded or unfolded, the vehicle head, the carrier 1000 and the first frame 300, as well as the vehicle head and the second frame 400 are folded or unfolded at the same time; in the present invention, folding or unfolding of multiple components only needs to be performed once, that is, one folding process can synchronously realize the folding of the vehicle head, the carrier 1000, the first frame 300 and the second frame 400; one unfolding process can synchronously realize the unfolding of the vehicle head, the carrier 1000, the first frame 300 and the second frame 400; this embodiment further improves the folding efficiency. In addition, in this embodiment, the first frame 300 and the mounting seat 600 are arranged at both ends of the second frame 400, and during the folding process, the first frame 300 and the mounting seat 600 can rotate in the same direction relative to the second frame 400 at both ends of the second frame 400, so that the first frame 300 and the mounting seat 600 are respectively folded at the opposite ends of the second frame 400, so as to further achieve full folding of the folding device, and there is no interference between the vehicle head, the carrier 1000, the first frame 300 and the second frame 400, thereby further reducing the volume of the folded folding device and improving the folding effect.

[0094] like Figure 3As shown, in one embodiment, the second folding mechanism 500 includes a second connecting rod 520 and a second link assembly 510 rotatably mounted on the second frame 400. The second connecting rod 520 is rotatably connected between the second link assembly 510 and the mounting base 600. When the second frame 400 rotates relative to the first frame 300, the second connecting rod assembly 510 is driven to swing, thereby driving the mounting base 600 to rotate relative to the second frame 400 via the second connecting rod 520. The second connecting rod assembly 510 is mounted on the second frame 400. The second connecting rod 520 is rotatably connected between the second connecting rod assembly 510 and the mounting base 600. Therefore, the connection between the second connecting rod 520 allows the mounting base 600 to rotate in the same direction as the second link assembly 510. The shape and size of the second link assembly 510 and the second connecting rod 520 can be set according to actual conditions, as long as the second frame 400 and the first frame 300 can be folded together, the second link assembly 510 and the second connecting rod 520 can drive the mounting seat 600 and the front of the vehicle to be fully folded synchronously with the second frame 400.

[0095] In one embodiment, the sixth rotational axis of the rotational connection between the second link assembly 510 and the second frame 400, and the seventh rotational axis of the rotational connection between the mounting base 600 and the second frame 400, are parallel to each other, thereby enabling rotational motion to be transmitted between the vehicle head, the second frame 400, the first frame 200, and the carrier 1000 without interference. Furthermore, the first rotational axis c, the second rotational axis b, and the third rotational axis a, the sixth rotational axis, and the seventh rotational axis are all arranged in parallel. It is understood that the sixth and seventh rotational axes can be single axes or comprise multiple parallel axes; for example, the seventh rotational axis can be a single axis, while the sixth rotational axis can be composed of two parallel axes.

[0096] It can be understood that the rotation axis between the second connecting rod 520 and the second connecting rod assembly 510, the rotation axis corresponding to the hinge point between each connecting rod in the second connecting rod assembly 510, and the rotation axis of the rotational connection between the second connecting rod 520 and the mounting base 600 are all parallel to each other, so that the rotational motion can be transmitted to each other without interference.

[0097] like Figure 3 As shown, in one embodiment, the second connecting rod assembly 510 includes:

[0098] The seventh connecting rod 511 has one end rotatably mounted on the second frame 400, and the other end of the seventh connecting rod 511 is rotatably connected to the second connecting rod 520; in this embodiment, the second connecting rod assembly 510 is a multi-link structure, wherein the second frame 400 is used as the frame structure of the second connecting rod assembly 510; the seventh connecting rod 511 is rotatably connected to the second frame 400 as the crank structure of the second connecting rod assembly 510.

[0099] The eighth connecting rod 512 is rotatably mounted on the second frame 400 ; that is, the eighth connecting rod 512 serves as a crank structure of the second connecting rod assembly 510 and is rotatably connected to the second frame 400 .

[0100] The ninth connecting rod 513 is rotationally connected between the seventh connecting rod 511 and the eighth connecting rod 512; the ninth connecting rod 513 serves as a connecting rod structure, and is rotationally connected to the seventh connecting rod 511 and the eighth connecting rod 512 respectively to transmit the rotational motion of the eighth connecting rod 512 to the seventh connecting rod 511.

[0101] When the seventh connecting rod 511 and the eighth connecting rod 512 swing in the same direction relative to the second frame 400 , the second connecting rod 520 drives the mounting seat 600 to rotate relative to the second frame 400 .

[0102] In this embodiment, the rotation axis of the rotational connection between the seventh link 511 and the second frame 400, and the rotation axis of the rotational connection between the eighth link 512 and the second frame 400 are arranged in parallel, and both are part of the sixth rotation axis. The rotation axis of the rotational connection between the seventh link 511 and the ninth link 513, and the rotation axis of the rotational connection between the eighth link 512 and the ninth link 513 are also parallel to the sixth rotation axis, so that rotational motion can be transmitted to each other without interference.

[0103] The lengths of the seventh link 511, the eighth link 512, or the ninth link 513, as well as the distance between the two rotation axes of the sixth rotation axis, can be set according to practical conditions so that during the folding of the second frame 400 and the first frame 300, the second connecting rod 520 and the mounting base 600 can be driven to fully fold synchronously with the second frame 400 by the swinging of the second link assembly 510. In one embodiment, the length of the ninth link 513 is greater than or equal to that of the seventh link 511 and the eighth link 512. This ensures that the ninth link 513 can transmit rotational motion over a long distance between the seventh link 511 and the eighth link 512, while also ensuring that the length of the second frame 400 is long enough to meet the comfort requirements of the mobility scooter.

[0104] like Figure 3 As shown, in one embodiment, the second connecting rod assembly 510 also includes a second active rod 514; one end of the second active rod 514 is rotatably mounted on the first frame 300, and the other end of the second active rod 514 is rotatably connected to the second hinge point; the second hinge point refers to the rotation connection point between the eighth connecting rod 512 and the ninth connecting rod 513; when the second frame 400 rotates relative to the first frame 300, the second connecting rod assembly 510 is driven to swing through the second active rod 514, and then the mounting seat 610 is driven to rotate relative to the second frame 400 through the second connecting rod 520.

[0105] It will be appreciated that the second active rod 514 can be used to define the relative position of the first frame 300 and the second link assembly 510 when the second frame 400 and the first frame 300 are fully folded or unfolded, thereby preventing interference between the first frame 300 and the second link assembly 510. Furthermore, the second active rod 514 is rotatably connected between the first frame 300 and the second hinge point, allowing the entire second link assembly 510 to rotate in the same direction as the first frame 300. Consequently, the first frame 300 can be linked to the second link assembly 510 through the provision of the second active rod 514. Furthermore, the third rotation axis c, the rotation axis of the rotational connection between the second active rod 514 and the first frame 300, and the rotation axis of the rotational connection between the second active rod 514 and the second hinge point are parallel to each other, thereby ensuring smooth transmission of rotational motion between the first frame 300 and the second link assembly 510 without interference. The length of the second active rod 514 can be set according to actual conditions, as long as the second active rod 514 can drive the second connecting rod assembly 510 to swing along with the first frame 300 during the folding process of the second frame 400 and the first frame 300, and then drive the mounting seat 600 and the front of the vehicle to rotate synchronously through the second connecting rod, thereby achieving full folding between the front of the vehicle, the second frame 400 and the first frame 300.

[0106] like Figure 4 As shown, in one embodiment, the folding device further includes a folding drive assembly 900; the folding drive assembly 900 is connected between the first frame 300 and the second frame 400 and is used to drive the second frame 400 to rotate relative to the first frame 300. It is understood that the folding drive assembly 900 can drive the second frame 400 to rotate relative to the first frame 300, thereby achieving the folding or unfolding of the vehicle head, the second frame 400, the first frame 300, and the carrier 1000 through the connection relationship between the various mechanisms in the above embodiments. The folding drive assembly 900 can be a component such as a telescopic cylinder or a rotary motor disposed between the first frame 300 and the second frame 400, as long as it can drive the second frame 400 to rotate relative to the first frame 300.

[0107] In this embodiment, by providing a single folding drive assembly 900 connected between the first frame 300 and the second frame 400, the folding or unfolding of the vehicle head, the second frame 400, the first frame 300, and the carrier 1000 in the folding device can be automatically completed at one time, avoiding the need to set multiple drive elements at multiple folding positions for multiple folding operations, thereby reducing costs while improving the convenience of the folding device. The folding drive assembly 900 of the present utility model can realize intelligent folding and unfolding of the folding device. By utilizing the driving force of the drive member 910, the folding device can be folded or unfolded with one click, making it more convenient for users to use. There is no need to manually perform complex folding steps, making motion control simpler and easy for users with limited mobility to operate.

[0108] like Figure 4 As shown, in one embodiment, the folding drive assembly 900 includes a driving member 910, a twelfth connecting rod 920 and a bending rod 930; the driving member 910 includes a fixed end 911 and a driving end 912; the fixed end 911 is fixedly mounted on the first frame 300, and the bending rod 930 is rotatably connected between the second frame 400 and the driving end 912; one end of the twelfth connecting rod 920 is rotatably mounted on the first frame 300, and the other end of the twelfth connecting rod 920 is rotatably connected to the bending rod 930; the driving end 912 is used to drive the bending rod 930 and the twelfth connecting rod 920 to drive the second frame 400 to rotate relative to the first frame 300.

[0109] It will be appreciated that the driving end 912 of the driving member 910 provides driving force, and the bending rod 930 can transmit the driving force of the driving member 910 to the second frame 400 via the twelfth connecting rod 920, thereby driving the second frame 400 to rotate relative to the first frame 300 (fixedly connected to the fixed end 911). In this embodiment, the lengths of the twelfth connecting rod 920 and the bending rod 930, as well as the bending angle of the bending rod 930, can be set according to actual conditions, as long as they can drive the second frame 400 to fully fold or unfold relative to the first frame 300.

[0110] In one embodiment, the folding device further includes a control device, which is signal-connected to the folding drive assembly 900. The control device controls the folding drive assembly 900 to achieve one-touch folding or unfolding of the carrier 1000, the first frame 300, and the second frame 400. That is, in this embodiment, the control device can achieve automatic folding or unfolding of the folding device by controlling the folding drive assembly 900.

[0111] In the above-described embodiment of the present invention, multiple folding mechanisms further enhance the vehicle's folding capabilities. Furthermore, the various mechanisms of the vehicle can be modularly designed, allowing users to swap out different module configurations as needed, increasing the maintainability and upgradeability of the mobility scooter. Furthermore, the present invention features a compact design, allowing the folded vehicle to occupy a smaller space when folded, making it convenient for storage in confined areas such as public transportation or home storage. Furthermore, the design of the folding mechanism makes the folding and unfolding process much faster, allowing users to complete the folding or unfolding operation in a short period of time.

[0112] One embodiment of the present invention further provides a mobility scooter comprising a front end, a carrier 1000, and the aforementioned folding device. The carrier 1000 is mounted on the auxiliary folding mechanism 100, and the front end is mounted on the end of the folding device away from the carrier 1000. The specific structure of the folding mechanism can be referred to the above embodiments and will not be repeated here. In some embodiments, the carrier 1000 includes, but is not limited to, a seat, a carrying device, or a manipulator. The mobility scooter can be a bicycle, an electric vehicle, a self-balancing scooter, a scooter, or the like.

[0113] In the mobility scooter of the above embodiment of the present invention, the first folding mechanism 200 is connected to the second frame 400 so that when the second frame 400 rotates relative to the first frame 300, the first folding mechanism 200 can be driven by the second frame 400 to rotate in the direction of rotation of the second frame 400. At the same time, the auxiliary folding mechanism 100 is connected to the first folding mechanism 200 through the first connecting rod 220 so that when the first folding mechanism 200 rotates, the auxiliary folding mechanism 100 can be driven to rotate in the direction of rotation of the first folding mechanism 200 (that is, the direction of rotation of the second frame 400). Therefore, when the first frame 300 and the second frame 400 are folded or unfolded, the carrier 1000 is folded or unfolded, which is simple to operate and improves the folding efficiency. In addition, by arranging the second frame 400 and the auxiliary folding mechanism 100 at both ends of the first frame 300, the second frame 400 and the auxiliary folding mechanism 100 can rotate in the same direction relative to the first frame 300 at the same time, so that the second frame 400 and the auxiliary folding mechanism 100 can be fully folded relative to the first frame 300 at the same time without interfering with each other, thereby reducing the volume of the folding device after folding and improving the folding effect.

[0114] In the above-described embodiment of the present invention, the folding capability of the mobility scooter is further enhanced through the use of multiple folding mechanisms. Furthermore, the various mechanisms of the aforementioned mobility scooter can be modularly designed, allowing users to replace different module configurations as needed, thereby increasing the maintainability and upgradeability of the mobility scooter. Furthermore, the present invention features a compact design, and the scooter occupies a smaller space when folded, making it convenient for storage in confined areas such as public transportation or household storage spaces. Furthermore, the design of the folding mechanism makes the scooter's folding and unfolding process faster, allowing users to complete the folding or unfolding operation in a short period of time.

[0115] like Figure 2 As shown, in one embodiment, the mobility scooter further includes support wheels 700 and a support and folding mechanism 800 mounted on the first frame 300; the support and folding mechanism 800 is connected between the support wheels 700 and the first folding mechanism 200; when the first folding mechanism 200 drives the auxiliary folding mechanism 100 to rotate relative to the first frame 300, the support and folding mechanism 800 drives the support wheels 700 to rotate to a preset support angle to support the vehicle. This utility model allows the support wheels 700 to be deployed after the folding mechanism is folded, ensuring the stability of the folded vehicle while making it more convenient to carry.

[0116] It is understood that the support and folding mechanism 800 can be a multi-link structure, thereby transmitting rotational motion to each other through the links to achieve rotation of the support wheel 700. The support and folding mechanism 800 can be rotatably connected to the first frame 300. The rotation axis of the rotational connection between the support and folding mechanism 800 and the first frame 300, as well as the rotation axis of the rotational connection between the first folding mechanism 200 (e.g., the first link assembly 210) and the first frame 300, are parallel to each other. Furthermore, these rotation axes are also arranged parallel to the third rotation axis c, so that rotational motion can be transmitted to each other without interference. The support and folding mechanism 800 is mounted on the first frame 300. That is, the frame of the support and folding mechanism 800 (i.e., the portion of the support and folding mechanism 800 that is stationary relative to the first frame 300) can be fixedly connected to the first frame 300. The frame can be mounted on the first frame 300 or integrally formed with the first frame 300.

[0117] like Figure 2As shown, in one embodiment, the support and folding mechanism 800 includes a third connecting rod 810, a tenth connecting rod 820 and an eleventh connecting rod 830; the third connecting rod 810 is installed on the first frame 300; the tenth connecting rod 820 is rotatably connected between the first connecting rod assembly 210 and the eleventh connecting rod 830; the end of the third connecting rod 810 away from the first frame 300 is rotatably connected to the eleventh connecting rod 830, and the support wheel 700 is rotatably installed on the end of the eleventh connecting rod 830 away from the tenth connecting rod 820.

[0118] In this embodiment, the tenth link 820 and the support wheel 700 are respectively located at opposite ends of the eleventh link 830, so that when the first link assembly 210 rotates relative to the first frame 300, the support wheel 700 is driven to rotate in the same rotation direction as the first link assembly 210 via the tenth link 820, the eleventh link 830, and the third link 810. It can be understood that the rotation axis of the rotational connection between the tenth link 820 and the first link assembly 210, the rotation axis of the rotational connection between the tenth link 820 and the eleventh link 830, and the rotation axis of the rotational connection between the third link 810 and the eleventh link 830 are all parallel to each other, so that rotational motion can be transmitted to each other without interference. The length and shape of the third connecting rod 810, the tenth connecting rod 820 or the eleventh connecting rod 830 can be set according to actual conditions, so that when the second frame 400 and the first frame 300 are fully folded, the support wheel 700 can rotate to a preset support angle to support the vehicle (such as a scooter).

[0119] The above are merely embodiments of the folding device and the mobility scooter of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A folding device, characterized in that: include: An auxiliary folding mechanism for installing the carrier; a first folding mechanism connected to the auxiliary folding mechanism; a first frame, the auxiliary folding mechanism and the first folding mechanism being mounted on the first frame; a second frame, the second frame being rotatably connected to the first frame, and an end of the first folding mechanism away from the auxiliary folding mechanism being rotatably mounted on the second frame; When the second frame rotates relative to the first frame, the auxiliary folding mechanism is driven by the first folding mechanism to rotate relative to the first frame, so as to synchronously realize the folding or unfolding of the carrier, the first frame and the second frame.

2. The folding device according to claim 1, characterized in that: The first folding mechanism includes a first connecting rod and a first link assembly rotatably mounted on the first frame; the first connecting rod is rotatably connected between the first link assembly and the carrier; When the second frame rotates relative to the first frame, the first connecting rod assembly is driven to swing, and the supporting body is driven to rotate relative to the first frame through the first connecting rod.

3. The folding device according to claim 2, characterized in that: The first connecting rod assembly includes: a first connecting rod rotatably mounted on the first frame; a second connecting rod, one end of the second connecting rod being rotatably mounted on the first frame, and the other end of the second connecting rod being rotatably connected to the first connecting rod; a third connecting rod, rotatably connected between the first connecting rod and the second connecting rod; When the first connecting rod and the second connecting rod swing in the same direction relative to the first frame, the supporting body is driven to rotate relative to the first frame through the first connecting rod.

4. The folding device according to claim 3, characterized in that: The first link assembly further includes a first active rod; one end of the first active rod is rotatably mounted on the second frame, and the other end of the first active rod is rotatably connected to a first hinge point; the first hinge point is a rotational connection point between the first link and the third link; When the second frame rotates relative to the first frame, the first connecting rod assembly is driven to swing via the first active rod, and then the supporting body is driven to rotate relative to the first frame via the first connecting rod.

5. The folding device according to claim 1, characterized in that: The auxiliary folding mechanism comprises: A fourth connecting rod is used for mounting the carrier; a fifth connecting rod, one end of which is rotatably mounted on the first frame, and the other end of which is rotatably connected to the fourth connecting rod; an end of the first folding mechanism away from the second frame is rotatably connected to the fifth connecting rod; A sixth connecting rod; one end of the sixth connecting rod is rotatably mounted on the first frame, and the other end of the sixth connecting rod is rotatably connected to the fourth connecting rod; When the second frame rotates relative to the first frame, the first folding mechanism drives the fifth link and the sixth link to swing in the same direction relative to the first frame, so as to synchronously realize the folding or unfolding of the carrier, the first frame and the second frame.

6. The folding device according to any one of claims 1 to 5, characterized in that: The folding device further includes a second folding mechanism and a mounting seat, wherein the mounting seat is rotatably mounted on the second frame and the mounting seat is used to mount the vehicle head; the second folding mechanism is mounted on the second frame and connected between the mounting seat and the first frame; When the second frame rotates relative to the first frame, while the first folding mechanism drives the carrier to rotate relative to the first frame, the second folding mechanism also drives the mounting seat to rotate relative to the second frame, so as to synchronously realize the folding or unfolding of the vehicle head, the carrier, the first frame and the second frame.

7. The folding device according to claim 6, characterized in that: The second folding mechanism includes a second connecting rod and a second link assembly rotatably mounted on the second frame, the second connecting rod being rotatably connected between the second link assembly and the mounting seat; When the second frame rotates relative to the first frame, the second connecting rod assembly is driven to swing, and the mounting seat is driven to rotate relative to the second frame through the second connecting rod.

8. The folding device according to claim 7, characterized in that: The second connecting rod assembly includes: a seventh connecting rod, one end of which is rotatably mounted on the second frame, and the other end of which is rotatably connected to the second connecting rod; an eighth connecting rod rotatably mounted on the second frame; a ninth connecting rod, rotatably connected between the seventh connecting rod and the eighth connecting rod; When the seventh connecting rod and the eighth connecting rod swing in the same direction relative to the second frame, the mounting seat is driven to rotate relative to the second frame through the second connecting rod.

9. The folding device according to claim 8, characterized in that: The second connecting rod assembly further includes a second active rod; one end of the second active rod is rotatably mounted on the first frame, and the other end of the second active rod is rotatably connected to a second hinge point; the second hinge point is a rotational connection point between the eighth connecting rod and the ninth connecting rod; When the second frame rotates relative to the first frame, the second connecting rod assembly is driven to swing via the second active rod, and then the mounting seat is driven to rotate relative to the second frame via the second connecting rod.

10. The folding device according to claim 1, characterized in that: The folding device further includes a folding drive assembly; the folding drive assembly is connected between the first frame and the second frame and is used to drive the second frame to rotate relative to the first frame.

11. The folding device according to claim 10, characterized in that: The folding drive assembly includes a driving member, a twelfth connecting rod and a bending rod; The driving member includes a fixed end and a driving end; the fixed end is fixedly mounted on the first frame, and the bending rod is rotatably connected between the second frame and the driving end; one end of the twelfth connecting rod is rotatably mounted on the first frame, and the other end of the twelfth connecting rod is rotatably connected to the bending rod; The driving end is used to drive the bending rod and the twelfth connecting rod to drive the second frame to rotate relative to the first frame.

12. The folding device according to claim 10, characterized in that: The folding device further includes a control device, which is connected to the folding drive assembly by signal. The control device controls the folding drive assembly to fold or unfold the carrier, the first frame, and the second frame with one click.

13. A mobility scooter, characterized in that: It comprises a vehicle head, a carrier, and a folding device according to any one of claims 1 to 12, wherein the carrier is mounted on the auxiliary folding mechanism, and the vehicle head is mounted on an end of the folding device away from the carrier.

14. The mobility scooter according to claim 13, characterized in that: The mobility scooter further comprises support wheels, and a support and folding mechanism mounted on the first frame; the support and folding mechanism is connected between the support wheels and the first folding mechanism; When the first folding mechanism drives the auxiliary folding mechanism to rotate relative to the first frame, the supporting wheel is driven to rotate to a preset supporting angle through the supporting folding mechanism to support the vehicle.

15. The mobility scooter according to claim 14, characterized in that: The supporting and folding mechanism includes a third connecting rod, a tenth connecting rod and an eleventh connecting rod; the third connecting rod is mounted on the first frame; the tenth connecting rod is rotatably connected between the first folding mechanism and the eleventh connecting rod; the end of the third connecting rod away from the first frame is rotatably connected to the eleventh connecting rod, and the supporting wheel is rotatably mounted on the end of the eleventh connecting rod away from the tenth connecting rod.

16. The mobility scooter according to claim 13, characterized in that: The carrier is a seat, a carrying device, or a robot.

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