Mobile device

Abstract

The utility model provides a mobile device. The first connecting piece is arranged at the rear end of the folding frame, and the rear auxiliary wheel assembly is detachably arranged on the first connecting piece. According to the mobile equipment disclosed by the invention, the front wheels can pass when the mobile equipment faces a step or an obstacle, and when the mobile equipment needs to be carried, the folding frame can be folded, and the rear auxiliary wheel assembly can be detached from the folding frame, so that the overall size of the mobile equipment is reduced, and a user can carry the mobile equipment conveniently. The rear auxiliary wheel assembly can be detached from the folding frame, so that the size of the folded wheelchair is smaller than that of an existing wheelchair, and the wheelchair can be conveniently carried into a carriage by a user.

Description

Technical Field

[0001] This utility model relates to the field of mobile tools, specifically a mobile device. Background Technology

[0002] A wheelchair is a mobile device that enables human movement and serves as a means of transportation for people with limb disabilities and limited mobility. More importantly, it enables them to engage in physical exercise and participate in social activities. A typical wheelchair consists of a frame, wheels, brakes, a seat, and an electronic power assist system. A rear auxiliary wheel is installed at the back of the frame. When facing steps or obstacles, stepping on the rear foot pedals puts the rear auxiliary wheel on the ground, lifting the front wheels and allowing them to pass over the steps or obstacles. In addition, existing ordinary wheelchairs or electric wheelchairs are usually designed with foldable frames to facilitate transportation.

[0003] However, even when folded, the existing wheelchair racks are still quite large, making them difficult for users to carry into the vehicle. Utility Model Content

[0004] In view of this, the present invention provides a mobile device to solve the problem that existing electric wheelchairs are difficult to transport to a vehicle due to their excessively large overall size after folding.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The first aspect of this utility model provides a mobile device, including: a folding frame, a first connector, and a rear auxiliary wheel assembly;

[0007] The first connector is located at the rear end of the folding frame;

[0008] The rear auxiliary wheel assembly is detachably mounted on the first connector.

[0009] Preferably, the rear auxiliary wheel assembly includes: a rear auxiliary wheel, a rear auxiliary wheel bracket, and a locking element;

[0010] The rear auxiliary wheel is rotatably mounted at the first end of the rear auxiliary wheel bracket;

[0011] The second end of the rear auxiliary wheel bracket is inserted into the first connector;

[0012] A locking element is provided on the rear auxiliary wheel bracket to prevent the second end of the rear auxiliary wheel bracket from separating from the first connecting element.

[0013] Preferably, the first connector has a socket for inserting the second end of the rear auxiliary wheel bracket.

[0014] Preferably, the locking element includes: a V-shaped spring and an unlocking button;

[0015] One end of the V-shaped spring is equipped with a pressing point;

[0016] The side wall of the socket has mounting holes for the pressing points to engage;

[0017] The unlock button is located in the mounting hole, and the unlock button can be used to disengage the pressing point from the mounting hole under external force.

[0018] Preferably, it also includes: a seat cushion, a backrest, and a second connector;

[0019] The seat is mounted on the folding frame;

[0020] The backrest is rotatably connected to the seat cushion via a second connector.

[0021] Preferably, the second connector includes: a backrest connector, a backrest fixing member, and a first screw;

[0022] The backrest fastener is located at the lower end of the backrest;

[0023] One end of the backrest connector is connected to the seat cushion, and the other end is rotatably connected to the backrest fixing component via the first screw;

[0024] The backrest fastener is provided with a first limiting part;

[0025] The backrest connector is provided with a second limiting part, which cooperates with the first limiting part to allow the backrest to rotate within a preset angle range.

[0026] Preferably, the backrest fastener has at least one first wire guide groove.

[0027] Preferably, it also includes: an upper cover plate and a lower cover plate;

[0028] The top cover is fixed to the side of the backrest fastener with the first wire groove by bolts;

[0029] The lower cover plate is fixed to the second connector by bolts;

[0030] The side of the lower cover plate that contacts the backrest fixing member has multiple second wire passage grooves corresponding to multiple first wire passage grooves.

[0031] Preferably, it also includes: a front pedal, a front pedal bracket, and a third connector;

[0032] The front footrest bracket is movably mounted on the front end of the folding frame via a third connector. The front footrest bracket can rotate between a first position and a second position. When the front footrest bracket is in the first position, it is in a folded state. When the front footrest bracket is in the second position, it forms a first angle with the folding frame.

[0033] The front pedal is mounted on the front pedal bracket.

[0034] Preferably, the front pedal bracket has a U-shaped structure.

[0035] Preferably, the third connector includes: a first protruding connecting portion, a second protruding connecting portion, a first hinge member, and a second hinge member;

[0036] The first protruding connecting part and the second protruding connecting part are located at the front end of the folding frame;

[0037] The first end of the front pedal bracket is hinged to the first protruding connecting part via a first hinge member;

[0038] The second end of the front pedal bracket is hinged to the second protruding connecting part via a second hinge member;

[0039] Both the first and second ends of the front pedal bracket are provided with limiting extensions;

[0040] The limiting extension is used to abut against the folding frame when the front pedal bracket is in the second position.

[0041] Preferably, the first hinge component includes: a second screw and a first nut;

[0042] Both the first protruding connecting part and the first end of the front pedal bracket are provided with a first screw hole for the second screw to pass through;

[0043] The first nut is threaded into the second screw.

[0044] And / or, the second hinge includes: a third screw and a second nut;

[0045] Both the second protruding connecting part and the second end of the front pedal bracket are provided with a second screw hole for the third screw to pass through;

[0046] The second nut is threaded into the third screw.

[0047] Preferably, the third connector further includes: a plurality of gaskets;

[0048] Gaskets are provided between the first protruding connecting part and the first end of the front pedal bracket, between the first protruding connecting part and the second end of the front pedal bracket, between the first nut and the first end of the front pedal bracket, and between the second nut and the second end of the front pedal bracket.

[0049] Preferably, the gasket is a duckbill gasket.

[0050] Based on the mobile device provided by this utility model, a first connecting member is disposed at the rear end of the folding frame, and the rear auxiliary wheel assembly is detachably disposed on the first connecting member. With the mobile device disclosed above, not only can the front wheels pass over steps or obstacles, but when the mobile device needs to be transported, the folding frame can be folded and the rear auxiliary wheel assembly removed from the folding frame, reducing the overall size of the mobile device for easier handling by the user. Compared to existing wheelchairs, because the rear auxiliary wheel assembly can be removed from the folding frame, the folded wheelchair is more compact, thus facilitating its transport into the vehicle. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0052] Figure 1 A schematic diagram of the structure of a mobile device provided in an embodiment of this utility model;

[0053] Figure 2 A schematic diagram showing the connection between the rear auxiliary wheel assembly and the folding frame provided in this embodiment of the utility model;

[0054] Figure 3 A schematic diagram showing the rear auxiliary wheel assembly separated from the folding frame according to an embodiment of this utility model;

[0055] Figure 4 Exploded view of the rear auxiliary wheel assembly and folding frame provided in the embodiment of this utility model;

[0056] Figure 5 A schematic diagram of a folded mobile device without rear auxiliary wheels provided in an embodiment of this utility model;

[0057] Figure 6 A schematic diagram of a folded mobile device with rear auxiliary wheels provided in an embodiment of this utility model;

[0058] Figure 7 This is a schematic diagram of the structure of the second connector provided in an embodiment of the present utility model;

[0059] Figure 8 An exploded view of the second connector provided in an embodiment of this utility model;

[0060] Figure 9 A schematic diagram of the front pedal bracket in the second position provided in an embodiment of this utility model;

[0061] Figure 10 A schematic diagram of the front pedal bracket in the first position provided in an embodiment of this utility model;

[0062] Figure 11 An exploded view showing the connection between the front pedal bracket and the folding frame provided in an embodiment of this utility model.

[0063] The components include: 1. Folding frame; 2. First connector; 3. Rear auxiliary wheel assembly; 31. Rear auxiliary wheel; 32. Rear auxiliary wheel bracket; 33. V-shaped spring; 34. Unlock button; 4. Seat cushion; 5. Backrest; 6. Second connector; 61. Backrest connector; 61. Second shaft hole; 62. Backrest fixing component; 62. First shaft hole; 622. First wire groove; 63. Bushing; 64. Spring washer; 65. First screw; 7. Upper cover plate; 8. Lower cover plate; 9. Front pedal; 10. Front pedal bracket; 11. First connector; 111. First protruding connecting part; 112. Second protruding connecting part; 113. Second screw; 114. First nut; 115. Third screw; 116. Second nut; 117. Duckbill washer. Detailed Implementation

[0064] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0065] This utility model embodiment provides a mobile device, see [link / reference] Figure 1 and combined Figures 2 to 4 , Figure 1 This is a structural diagram of a mobile device, which includes: a folding frame 1, a first connector 2, and a rear auxiliary wheel assembly 3;

[0066] The first connector 2 is located at the rear end of the folding frame 1;

[0067] The rear auxiliary wheel assembly 3 is detachably mounted on the first connector 2.

[0068] It should be noted that the folding frame 1 has an open state and a folded state. When the folding frame 1 is in the open state, a rear foot pedal is set at the rear end of the folding frame 1. When the wheelchair needs to pass through a step or obstacle, it can step on the rear foot pedal to make the rear auxiliary wheel 31 touch the ground and lift the front wheel up to pass through the step or obstacle.

[0069] When the folding frame 1 is in the open state, it can not only move mobile devices, but also carry users or items.

[0070] It should also be noted that the mobile device in this application is specifically a wheelchair, but is not limited to wheelchairs. For ease of understanding, this application uses a wheelchair as an example for illustration.

[0071] This utility model places the first connecting member 2 at the rear end of the folding frame 1, and detachably attaches the rear auxiliary wheel assembly 3 to the first connecting member 2. With the aforementioned mobile device, not only can the front wheels pass over steps or obstacles, but when the mobile device needs to be moved, the folding frame 1 can be folded and the rear auxiliary wheel assembly 3 can be removed from the folding frame 1, reducing the overall size of the mobile device for easier handling. Compared to existing wheelchairs, because the rear auxiliary wheel assembly 3 can be removed from the folding frame 1, the folded wheelchair is more compact, making it easier for users to move it into the vehicle.

[0072] It is worth noting that, in the folding state, the rear auxiliary wheel assembly 3 of the folding frame 1 of this application can cooperate with the front wheels to enable the wheelchair to stand upright (see reference). Figure 5 If the rear auxiliary wheel assembly 3 is removed, the wheelchair can stand upright by coordinating the front and rear wheels (see reference). Figure 6 ).

[0073] Specifically, the rear auxiliary wheel assembly 3 includes: a rear auxiliary wheel 31, a rear auxiliary wheel bracket 32, and a locking element;

[0074] The rear auxiliary wheel 31 is rotatably mounted on the first end of the rear auxiliary wheel bracket 32;

[0075] The first connector 2 is located at the rear end of the folding frame 1, and the first connector 2 is used to cooperate with the second end of the rear auxiliary wheel bracket 32;

[0076] A locking element is provided on the rear auxiliary wheel bracket 32 ​​to prevent the second end of the rear auxiliary wheel bracket 32 ​​from separating from the first connecting element 2.

[0077] It should be noted that the rear auxiliary wheel 31 is rotatably mounted on the first end of the rear auxiliary wheel bracket 32, the first connecting member 2 is located at the rear end of the folding frame 1 and cooperates with the second end of the rear auxiliary wheel bracket 32, and the locking member is located on the rear auxiliary wheel bracket 32, restricting the separation of the second end of the rear auxiliary wheel bracket 32 ​​from the connecting member. Thus, when the folding frame 1 is in the open state, it can not only restrict the separation of the second end of the rear auxiliary wheel bracket 32 ​​from the first connecting member 2, but also ensure the connection strength between the rear auxiliary wheel bracket 32 ​​and the connecting member. Therefore, when facing steps or obstacles, it can provide sufficient support strength when the rear auxiliary wheel 31 is on the ground and the front wheel is raised, ensuring that the wheelchair can pass through steps or obstacles. When it is necessary to fold the folding frame 1, the second end of the rear auxiliary wheel bracket 32 ​​can be quickly separated from the connecting member by unlocking the locking member, which is convenient for users to disassemble the rear auxiliary wheel bracket 32 ​​and improve the folding efficiency of the wheelchair.

[0078] It should also be noted that the locking element can be set in the rear auxiliary wheel bracket 32, or in the first connecting member 2, or it can be set separately (that is, the locking element is not set in the rear auxiliary wheel bracket 32 ​​or the first connecting member 2; when connection is required, the locking element can be used to restrict the second end of the rear auxiliary wheel bracket 32 ​​from the first connecting member 2). Those skilled in the art can choose according to their needs.

[0079] Furthermore, the locking component of this application can specifically be a connector, that is, at the connection between the rear auxiliary wheel bracket 32 ​​and the first connector 2, the locking component is detachably connected to the rear auxiliary wheel bracket 32 ​​and / or the first connector 2 to restrict the separation of the rear auxiliary wheel bracket 32 ​​and the first connector 2; or it can be a limiting component, that is, when the rear auxiliary wheel bracket 32 ​​and the first connector 2 are engaged, it is achieved by restricting either the rear auxiliary wheel bracket 32 ​​or the first connector 2 from disengaging from the engaging structure of the other.

[0080] In some embodiments, the number of rear auxiliary wheel assemblies 3 can be one or two.

[0081] It should be noted that when the number of rear auxiliary wheel assemblies 3 is set to 1, the rear auxiliary wheel assembly 3 can be placed in the middle of the rear end of the folding frame 1. By stepping on the rear pedal, the rear auxiliary wheel assembly 3 and the two rear wheels can form a stable triangular structure. When the number of rear auxiliary wheel assemblies 3 is set to 2, the two rear auxiliary wheel assemblies 3 can be placed at both ends of the rear end of the folding frame 1. By stepping on the rear pedal, the two rear auxiliary wheel assemblies 3 and the two rear wheels can form a stable quadrilateral structure.

[0082] Furthermore, the first connector 2 has a socket for inserting the second end of the rear auxiliary wheel bracket 32.

[0083] It should be noted that by opening a socket for the second end of the rear auxiliary wheel bracket 32 ​​in the first connector 2, when it is necessary to assemble the folding frame 1 and the rear auxiliary wheel assembly 3, it is only necessary to insert the second end of the rear auxiliary wheel bracket 32 ​​into the socket of the first connector 2. Then, the locking member restricts the second end of the rear auxiliary wheel bracket 32 ​​from coming out of the socket of the first connector 2. When it is necessary to separate the rear auxiliary wheel assembly 3 from the folding frame 1, it is only necessary to unlock the locking member to allow the second end of the rear auxiliary wheel bracket 32 ​​to come out of the socket of the first connector 2. This is easy to operate, effectively improves the efficiency of user installation and disassembly, and greatly enhances the user experience.

[0084] It should also be noted that the first connector 2 is connected to the rear auxiliary wheel bracket 32 ​​by a plug-in method, which can further ensure the connection strength between the first connector 2 and the rear auxiliary wheel bracket 32.

[0085] In some embodiments, the other end of the first connector 2 is bolted to the folding frame 1.

[0086] It should be noted that the other end of the first connector 2 can be connected to the folding frame 1 by bolts or by welding. Those skilled in the art can choose according to their needs.

[0087] Specifically, the locking components include: a V-shaped spring 33 and an unlocking button 34;

[0088] One end of the V-shaped spring 33 is provided with a pressing point;

[0089] The side wall of the socket has mounting holes for the pressing points to engage;

[0090] The unlock button 34 is located in the mounting hole, and the unlock button 34 can be used to disengage the pressing point from the mounting hole under external force.

[0091] It should be noted that this application can use a V-shaped spring 33 or other components (such as a spring clip) that can prevent the second end of the rear auxiliary wheel bracket 32 ​​from dislodging from the socket of the first connector 2. Those skilled in the art can choose according to their needs.

[0092] It should also be noted that when the rear auxiliary wheel 31 needs to be disassembled, external force is applied to the unlock button 34 to disengage the pressing point from the mounting hole. At this time, the second end of the rear auxiliary wheel bracket 32 ​​can be easily pulled out from the socket of the first connector 2. During assembly, the second end of the rear auxiliary wheel bracket 32 ​​is simply inserted into the socket of the first connector 2 until the pressing point of the V-shaped spring 33 is engaged in the mounting hole to achieve a firm connection between the rear auxiliary wheel bracket 32 ​​and the first connector 2.

[0093] Further, refer to Figure 1 and combined Figure 7and Figure 8 The mobile device also includes: a seat cushion 4, a backrest 5, and a second connector 6;

[0094] The seat 4 is mounted on the folding frame 1;

[0095] The backrest 5 is rotatably connected to the seat cushion 4 via the second connector 6.

[0096] It should be noted that the seat cushion 4 is set on the folding frame 1, and the backrest 5 is rotatably connected to the seat cushion 4 through the second connector 6. This allows the user to adjust the angle of the backrest 5 according to their riding habits, greatly improving the user's comfort.

[0097] It should also be noted that the backrest 5 is rotatably connected to the seat cushion 4 via the second connector 6, thus allowing the wheelchair to be folded as a whole by changing the angle between the backrest 5 and the seat cushion 4 when the folding frame 1 is folded (see reference). Figure 5 and Figure 6 ).

[0098] Specifically, the second connector includes: a backrest connector 61, a backrest fixing member 62, and a first screw 65;

[0099] The backrest fastener 62 is located at the lower end of the backrest 5;

[0100] One end of the backrest connector 61 is connected to the seat cushion 4, and the other end is rotatably connected to the backrest fixing member 62 via the first screw 65;

[0101] The backrest fastener 62 is provided with a first limiting part;

[0102] The backrest connector 61 is provided with a second limiting part, which cooperates with the first limiting part to make the backrest 5 rotate within a preset angle range.

[0103] In some embodiments, the backrest connector 61 is rotatably connected to the backrest fixing member 62 via the first screw 65. The backrest fixing member 62 is provided with a first shaft hole 621.

[0104] Both sides of the first shaft hole 621 are provided with bushings 63;

[0105] One end of the backrest connector 61 is connected to the seat cushion 4, and the other end has a second shaft hole 611.

[0106] The first screw 65 passes through the bushing 63, the second shaft hole 611 and the spring washer 64 and is threadedly connected to the backrest connector 61.

[0107] It should be noted that there are two backrest connectors 61. One end of each backrest connector 61 is connected to the seat cushion 4, and the other ends of each backrest connector 61 are respectively located at both ends of the first shaft hole 621. The first screw 65 passes through the second shaft hole 611, spring washer 64, bushing 63, first shaft hole 621, and bushing 63 of one backrest connector 61 and is threadedly connected to the second shaft hole 611 of the other backrest connector 61. The spring washer 64 can continuously provide elastic restoring force in this application. Therefore, with the threaded connection between the first screw 65 and the backrest connector 61, the friction between the backrest connector 61 and the backrest fixing member 62 during rotation can be increased. Thus, when it is necessary to adjust the angle of the backrest 5, the first screw 65 is rotated first to make the backrest connector 61 rotate relative to the backrest fixing member 62, and then the first screw 65 is tightened to fix the angle between the backrest connector 61 and the backrest fixing member 62, thus preventing the user from rotating the backrest connector 61 relative to the backrest fixing member 62.

[0108] In some embodiments, the adjustment angle between the backrest 5 and the seat cushion 4 is 33.22 degrees.

[0109] It should be noted that the adjustment angle between the backrest 5 and the seat cushion 4 can be 33.22 degrees, or other adjustment angles, such as 20 degrees, 25 degrees, etc. Those skilled in the art can achieve this by changing the specific positions of the first limiting member and the second limiting member.

[0110] Specifically, the backrest fastener 62 has at least one first wire groove 622.

[0111] It should be noted that by opening at least one first wire passage 622 in the backrest fixing member 62, the wiring harness connected to the operation button is facilitated and the wiring harness is protected from damage caused by external impact.

[0112] Furthermore, the mobile device also includes: an upper cover 7 and a lower cover 8;

[0113] The upper cover plate 7 is fixed to the side of the backrest fastener 62 with the first wire groove 622 by bolts;

[0114] The lower cover plate 8 is fixed to the second connecting piece 6 by bolts;

[0115] The side of the lower cover plate 8 that contacts the backrest fixing member 62 has multiple second wire passage grooves corresponding to multiple first wire passage grooves.

[0116] It should be noted that by setting a cover plate and a lower cover plate 8, and opening multiple second wire passage grooves corresponding to multiple first wire passage grooves on the side of the lower cover plate 8 that contacts the backrest fixing member 62, and fixing the upper cover plate 7 to the side of the backrest fixing member 62 that has the first wire passage groove 622 by bolts, and fixing the lower cover plate 8 to the second connector 6 by bolts, the wire harness can be further protected and the overall aesthetics of the second connector 6 can be improved.

[0117] It is worth noting that the upper cover plate 7 can be fixed to the backrest fastener 62 by bolts, by clips, or by bonding, welding, binding, etc. Those skilled in the art can choose according to their needs.

[0118] The lower cover plate 8 can be fixed to the second connector 6 by bolts, by clips, or by bonding, welding, binding, etc. Those skilled in the art can choose according to their needs.

[0119] Further, refer to Figure 1 and combined Figures 9 to 11 The mobile device also includes: a front pedal 9, a front pedal bracket 10, and a third connector 7;

[0120] The front footrest bracket 10 is movably mounted on the front end of the folding frame 1 via the third connector 7. The front footrest bracket 10 can rotate between the first position and the second position. When the front footrest bracket 10 is in the first position, the front footrest bracket 10 is in a folded state. When the front footrest bracket 10 is in the second position, the front footrest bracket 10 forms a first angle with the folding frame 1.

[0121] The front pedal 9 is mounted on the front pedal bracket 10.

[0122] It should be noted that when the folding frame 1 is opened, the front pedal bracket 10 is in the second position, at which time the mobile device is in a fully open state. When the folding frame 1 is folded, the front pedal bracket 10 is in the first position, at which time the mobile device is in a fully stowed state.

[0123] It is worth noting that the first angle is the angle at which the front foot pedal 9 can support the feet of the passenger when the folding frame 1 is in the open state. Those skilled in the art can set the first angle in detail according to the needs of use, but this application does not specifically limit the first angle.

[0124] This invention movably mounts a front footrest bracket 10 to the front end of a folding frame 1 via a third connector 7. The front footrest bracket 10 can rotate between a first position and a second position. When the front footrest bracket 10 is in the first position, it is folded. When the front footrest bracket 10 is in the second position, it forms a first angle with the folding frame 1, and the front footrest 9 is mounted on it. With this disclosed mobile device, when it is necessary to transport the mobile device, the folding frame 1 can be folded, and the front footrest bracket 10 can be rotated from the second position to the first position, reducing the overall size of the mobile device for easier handling. Compared to existing wheelchairs, this application, due to the ability to fold the front footrest bracket 10, results in a more compact folded wheelchair, making it easier for users to transport it into a vehicle.

[0125] Specifically, the front pedal bracket 10 has a U-shaped structure.

[0126] It should be noted that the front pedal bracket 10 can be a U-shaped structure, a rectangular structure, or a triangular structure, and those skilled in the art can choose according to their needs.

[0127] Furthermore, the third connector 7 includes: a first protruding connecting portion 111, a second protruding connecting portion 112, a first hinge and a second hinge; a second screw 113, a first nut 114, a third screw 115 and a second nut 116;

[0128] The first protruding connecting part 111 and the second protruding connecting part 112 are disposed at the front end of the folding frame 1;

[0129] The first end of the front pedal bracket 10 is connected to the first protruding connecting part 111 via a first hinge;

[0130] The second end of the front pedal bracket 10 is connected to the second protruding connecting part 112 via a second hinge;

[0131] Both the first and second ends of the front pedal bracket 10 are provided with limiting extensions;

[0132] The limiting extension is used to abut against the folding frame 1 when the front pedal bracket 10 is in the second position.

[0133] It should be noted that by setting a first protruding connecting part 111, a second protruding connecting part 112, a second screw 113, a first nut 114, a third screw 115, and a second nut 116, and setting the first protruding connecting part 111 and the second protruding connecting part 112 at the front end of the folding frame 1, the first end of the front pedal bracket 10 is connected to the first protruding connecting part 111 via a first hinge, and the second end of the front pedal bracket 10 is connected to the second protruding connecting part 112 via a second hinge, and the first end of the front pedal bracket 10 and the second protruding connecting part 112 are connected at the first end and the second end of the front pedal bracket 10. Both ends are equipped with limiting extensions. Therefore, when the folded mobile device is opened, the front pedal bracket 10 can rotate downward under its own weight, that is, rotate from the first position to the second position. Then, the limiting extensions abut against the folding frame 1, so that the front pedal bracket 10 and the folding frame 1 are kept at the first angle, thus supporting the user's foot. When it is necessary to fold the mobile device, the front pedal bracket 10 can be folded by rotating it upward, which greatly improves the efficiency of folding and opening the mobile device.

[0134] Furthermore, the first hinge component includes: a second screw 113 and a first nut 114;

[0135] Both the first protruding connecting part 111 and the first end of the front pedal bracket 10 are provided with a first screw hole for the second screw 113 to pass through;

[0136] The first nut 114 is threadedly engaged with the second screw 113;

[0137] And / or, the second hinge includes: a third screw 115 and a second nut 116;

[0138] The second protruding connecting part 112 and the second end of the front pedal bracket 10 are both provided with a second screw hole for the third screw 115 to pass through;

[0139] The second nut 116 is threadedly engaged with the third screw 115.

[0140] It should be noted that the first hinge component can be a combination of the second screw 113 and the first nut 114, or it can be other (hing) components. Those skilled in the art can choose according to their needs.

[0141] The second hinge can be a combination of the third screw 115 and the second nut 116, or it can be other (hing) components. Those skilled in the art can choose according to their needs.

[0142] In some embodiments, both the second screw 113 and the third screw 115 are M6 screws.

[0143] It should be noted that the second screw 113 and the third screw 115 can both be set to M6 screws, or they can be set to other types of screws. Those skilled in the art can choose according to their needs.

[0144] In some embodiments, the first protruding connecting portion 111 and the second protruding connecting portion 112 are provided with a limiting groove that mates with one side of the front pedal 9.

[0145] It should be noted that when the front pedal bracket 10 is in the first position, the side of the front pedal 9 closest to the folding frame 1 can be engaged in the limiting groove, effectively preventing the front pedal bracket 10 from rotating from the first position to the second position when the mobile device is in the folded state, thereby ensuring that the overall state of the mobile device is in the folded state.

[0146] Furthermore, the third connector 7 also includes: a plurality of gaskets 77;

[0147] A washer 77 is provided between the first protruding connecting part 111 and the first end of the front pedal bracket 10, between the first protruding connecting part 111 and the second end of the front pedal bracket 10, between the first nut 114 and the first end of the front pedal bracket 10, and between the second nut 116 and the second end of the front pedal bracket 10.

[0148] It should be noted that by providing a duckbill washer 117 between the first protruding connecting part 111 and the first end of the front pedal bracket 10, and by providing a duckbill washer 117 between the first protruding connecting part 111 and the second end of the front pedal bracket 10, by providing a duckbill washer 117 between the first nut 114 and the first end of the front pedal bracket 10, and by providing a washer 77 between the second nut 116 and the second end of the front pedal bracket 10, the washer 77 provides a certain elastic force to the first nut 114 and the second nut 116 through the tightening of the first nut 114 and the second nut 116, thus preventing the first nut 114 and the second nut 116 from loosening. Therefore, by adjusting the tightness of the second screw 113 and the first nut 114 and the third screw 115 and the second nut 116, the damping sensation of the rotation of the front pedal bracket 10 is achieved, thereby preventing the front pedal bracket 10 from falling quickly and hitting the user or surrounding objects when the folded mobile device is opened.

[0149] Specifically, gasket 77 is a duckbill gasket.

[0150] It should be noted that the gasket 77 can be a symmetrical duckbill gasket, or a gasket with other symmetrical structures (such as a conical gasket), or a gasket with other asymmetrical structures. Those skilled in the art can make conventional replacements according to their needs.

[0151] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mobile device, characterized in that, include: Folding frame, first connector and rear auxiliary wheel assembly; The first connector is located at the rear end of the folding frame; The rear auxiliary wheel assembly is detachably mounted on the first connector.

2. The mobile device according to claim 1, characterized in that, The rear auxiliary wheel assembly includes: a rear auxiliary wheel, a rear auxiliary wheel bracket, and a locking component; The rear auxiliary wheel is rotatably mounted on the first end of the rear auxiliary wheel bracket; The second end of the rear auxiliary wheel bracket is inserted into the first connector; The locking member is disposed on the rear auxiliary wheel bracket and is used to restrict the second end of the rear auxiliary wheel bracket from separating from the first connecting member.

3. The mobile device according to claim 1, characterized in that, The first connector has a socket for inserting the second end of the rear auxiliary wheel bracket.

4. The mobile device according to claim 3, characterized in that, The locking element includes: a V-shaped spring and an unlocking button; One end of the V-shaped spring is provided with a pressing point; The side wall of the socket is provided with mounting holes for the pressing point to be engaged; The unlock button is located in the mounting hole, and the unlock button can cause the pressing point to disengage from the mounting hole under the action of external force.

5. The mobile device according to claim 1, characterized in that, Also includes: Seat cushion, backrest, and second connector; The seat cushion is disposed on the folding frame; The backrest is rotatably connected to the seat cushion via the second connector.

6. The mobile device according to claim 5, characterized in that, The second connector includes: a backrest connector, a backrest fixing member, and a first screw; The backrest fastener is located at the lower end of the backrest; One end of the backrest connector is connected to the seat cushion, and the other end is rotatably connected to the backrest fixing member through the first screw. The backrest fastener is provided with a first limiting part; The backrest connector is provided with a second limiting part, which cooperates with the first limiting part to allow the backrest to rotate within a preset angle range.

7. The mobile device according to claim 5, characterized in that, The backrest fastener has at least one first wire guide groove.

8. The mobile device according to claim 7, characterized in that, Also includes: Top cover and bottom cover; The upper cover plate is fixed to the side of the backrest fastener where the first wire groove is provided by bolts; The lower cover plate is fixed to the second connector by bolts; The side of the lower cover plate that contacts the backrest fixing member has multiple second wire passage grooves corresponding to the multiple first wire grooves.

9. The mobile device according to any one of claims 5 to 8, characterized in that, It also includes: front pedal, front pedal bracket and third connector; The front pedal bracket is movably mounted on the front end of the folding frame via the third connector. The front pedal bracket can rotate between a first position and a second position. When the front pedal bracket is in the first position, it is in a folded state. When the front pedal bracket is in the second position, it forms a first angle with the folding frame. The front pedal is mounted on the front pedal bracket.

10. The mobile device according to claim 9, characterized in that, The front pedal bracket has a U-shaped structure.

11. The mobile device according to claim 10, characterized in that, The third connector includes: a first protruding connecting portion, a second protruding connecting portion, a first hinge member, and a second hinge member; The first protruding connecting portion and the second protruding connecting portion are disposed at the front end of the folding frame; The first end of the front pedal bracket is hinged to the first protruding connecting part through the first hinge member. The second end of the front pedal bracket is hinged to the second protruding connecting part via the second hinge member; Both the first and second ends of the front pedal bracket are provided with limiting extensions. The limiting extension is used to abut against the folding frame when the front pedal bracket is in the second position.

12. The mobile device according to claim 11, characterized in that, The first hinge component includes: a second screw and a first nut; Both the first protruding connecting part and the first end of the front pedal bracket are provided with a first screw hole for the second screw to pass through; The first nut is threadedly engaged with the second screw; And / or, the second hinge includes: a third screw and a second nut; The second protruding connecting part and the second end of the front pedal bracket are both provided with a second screw hole for the third screw to pass through; The second nut is threadedly engaged with the third screw.

13. The mobile device according to claim 12, characterized in that, The third connector further includes: multiple gaskets; The gasket is provided between the first protruding connecting part and the first end of the front pedal bracket, between the first protruding connecting part and the second end of the front pedal bracket, between the first nut and the first end of the front pedal bracket, and between the second nut and the second end of the front pedal bracket.

14. The mobile device according to claim 13, characterized in that, The gasket is a duckbill gasket.

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