Mobile device

Abstract

The utility model provides a mobile device. A seat cushion is arranged on a folding frame, a backrest is connected with the seat cushion through a first connecting piece, a front pedal support is movably arranged at the front end of the folding frame through a second connecting piece, the front pedal support can rotate between a first position and a second position, and when the front pedal support is located at the first position, the front pedal support is in a folded state; when the front pedal support is located at the second position, the first angle is formed between the front pedal support and the folding frame, the front pedal is arranged on the front pedal support, the rear auxiliary wheel assembly is detachably arranged at the rear end of the folding frame through the third connecting piece, and when the mobile equipment needs to be carried, the folding frame can be folded; the rear auxiliary wheel assembly is detached from the folding frame, and the front pedal support is rotated from the second position to the first position, so that the overall size of the mobile equipment is reduced, and a user can carry the mobile equipment conveniently.

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, because the wheelchair frame is equipped with rear auxiliary wheels and a front footrest, the overall size of the wheelchair is still too large when the frame is folded, making it difficult for users to carry it 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 front pedal, a front pedal bracket, and a first connector;

[0007] The front footrest bracket is movably mounted on the front end of the folding frame via the first connector. The front footrest bracket can rotate between the first position and the second position. When the front footrest bracket is in the first position, the front footrest bracket is in a folded state. When the front footrest bracket is in the second position, the front footrest bracket is at a first angle to the folding frame.

[0008] The front pedal is mounted on the front pedal bracket.

[0009] Preferably, the front pedal bracket has a U-shaped structure.

[0010] Preferably, the first connector includes: a first protruding connecting portion, a second protruding connecting portion, a first hinge member, and a second hinge member;

[0011] The first protruding connecting part and the second protruding connecting part are located at the front end of the folding frame;

[0012] The first end of the front pedal bracket is hinged to the first protruding connecting part via a first hinge member;

[0013] The second end of the front pedal bracket is hinged to the second protruding connecting part via a second hinge member;

[0014] Both the first and second ends of the front pedal bracket are provided with limiting extensions;

[0015] The limiting extension is used to abut against the folding frame when the front pedal bracket is in the second position.

[0016] Preferably, the first hinge component includes: a first screw and a first nut;

[0017] Both the first protruding connecting part and the first end of the front pedal bracket are provided with a first screw hole for the first screw to pass through.

[0018] The first nut is threaded into the first screw.

[0019] And / or, the second hinge includes: a second screw and a second nut;

[0020] Both the second protruding connecting part and the second end of the front pedal bracket are provided with a second screw hole for the second screw to pass through;

[0021] The second nut is threaded into the second screw.

[0022] Preferably, the first connector further includes: a plurality of gaskets;

[0023] 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.

[0024] Preferably, the gasket is a duckbill gasket.

[0025] Preferably, it also includes: a second connector and a rear auxiliary wheel assembly;

[0026] The second connector is located at the rear end of the folding frame;

[0027] The rear auxiliary wheel assembly is detachably mounted on the second connector.

[0028] Preferably, the rear auxiliary wheel assembly includes: a rear auxiliary wheel, a rear auxiliary wheel bracket, and a locking element;

[0029] The rear auxiliary wheel is rotatably mounted at the first end of the rear auxiliary wheel bracket;

[0030] The second end of the rear auxiliary wheel bracket is inserted into the second connector;

[0031] 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 second connecting element.

[0032] Preferably, the second connector has a socket for inserting the second end of the rear auxiliary wheel bracket.

[0033] Preferably, the locking element includes: a V-shaped spring and an unlocking button;

[0034] One end of the V-shaped spring is equipped with a pressing point;

[0035] The side wall of the socket has through holes for the pressing point to engage;

[0036] The unlock button is located in the through hole, and the unlock button can be used to disengage the pressing point from the through hole under external force.

[0037] Preferably, it also includes: a seat cushion, a backrest, and a third connector;

[0038] The seat is mounted on the folding frame;

[0039] The backrest is rotatably connected to the seat cushion via a third connector.

[0040] The front footrest bracket is movably mounted on the front end of the folding frame via the first connector. The front footrest bracket can rotate between the first position and the second position. When the front footrest bracket is in the first position, the front footrest bracket is in a folded state. When the front footrest bracket is in the second position, the front footrest bracket and the folding frame are at a second preset angle.

[0041] The front pedal is mounted on the front pedal bracket;

[0042] The rear auxiliary wheel assembly is detachably mounted at the rear of the folding frame via a second connector.

[0043] Preferably, the backrest fastener has multiple first wire guide grooves.

[0044] Preferably, it also includes: an upper cover plate and a lower cover plate;

[0045] The top cover is fixed to the side of the backrest fastener with the first wire groove by bolts;

[0046] The lower cover plate is fixed to the third connector by bolts;

[0047] 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.

[0048] The second aspect of this utility model provides another mobile device, including: a folding frame, a seat cushion, a backrest, and a third connector;

[0049] The seat is mounted on the folding frame;

[0050] The backrest is rotatably connected to the seat cushion via a third connector.

[0051] Based on the above-described mobile device provided by this utility model, a seat cushion is mounted on a folding frame, and a backrest is connected to the seat cushion via a first connector. A front pedal bracket is movably mounted on the front end of the folding frame via a second 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 and the front pedal is mounted on the front pedal bracket. The rear auxiliary wheel assembly is detachably mounted on the rear end of the folding frame via a third connector. When it is necessary to transport the mobile device, the folding frame can be folded, the rear auxiliary wheel assembly can be removed from the folding frame, and the front pedal bracket can be rotated from the second position to the first position, thereby reducing the overall size of the mobile device and making it easier for users to transport. Attached Figure Description

[0052] 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.

[0053] Figure 1 A schematic diagram of the structure of a mobile device provided in an embodiment of this utility model;

[0054] Figure 2 A schematic diagram of the front pedal bracket in the second position provided in an embodiment of this utility model;

[0055] Figure 3 A schematic diagram of the front pedal bracket in the first position provided in an embodiment of this utility model;

[0056] Figure 4 An exploded view showing the connection between the front pedal bracket and the folding frame provided in this embodiment of the utility model;

[0057] Figure 5 A schematic diagram showing the connection between the rear auxiliary wheel assembly and the folding frame provided in this embodiment of the utility model;

[0058] Figure 6 A schematic diagram showing the rear auxiliary wheel assembly separated from the folding frame according to an embodiment of this utility model;

[0059] Figure 7 Exploded view of the rear auxiliary wheel assembly and folding frame provided in the embodiment of this utility model;

[0060] Figure 8 This is a schematic diagram of the structure of the first connector provided in an embodiment of the present utility model;

[0061] Figure 9 An exploded view of the first connector provided in an embodiment of this utility model;

[0062] Figure 10 A schematic diagram of a folded mobile device without rear auxiliary wheels provided in an embodiment of this utility model;

[0063] Figure 11 A schematic diagram of a folded mobile device with rear auxiliary wheels provided in an embodiment of this utility model.

[0064] The components include: 1. Folding frame; 2. Seat cushion; 3. Backrest; 4. First connector; 41. Backrest connector; 411. Second shaft hole; 42. Backrest fixing component; 42. First shaft hole; 422. First wire groove; 43. Bushing; 44. Spring washer; 45. Third screw; 5. Front pedal; 6. Front pedal bracket; 7. Second connector; 71. First protruding connecting part; 72. Second protruding connecting part; 73. First nut; 74. Second screw; 75. Second nut; 76. Duckbill washer; 77. Third connector; 8. Rear auxiliary wheel assembly; 9. Rear auxiliary wheel; 91. Rear auxiliary wheel bracket; 92. V-shaped spring; 93. Unlock button; 94. Upper cover plate; 10. Lower cover plate; 11. Detailed Implementation

[0065] 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.

[0066] This utility model embodiment provides a mobile device, see [link / reference] Figure 1 and combined Figures 2 to 11 , Figure 1 This is a structural diagram of a mobile device, which includes: a folding frame 1, a front pedal 5, a front pedal bracket 6, and a first connector 7;

[0067] The front foot pedal bracket 6 is movably mounted on the front end of the folding frame 1 via the first connector 7. The front foot pedal bracket 6 can rotate between the first position and the second position. When the front foot pedal bracket 6 is in the first position, the front foot pedal bracket 6 is in a folded state. When the front foot pedal bracket 6 is in the second position, the front foot pedal bracket 6 forms a first angle with the folding frame 1.

[0068] The front pedal 5 is mounted on the front pedal bracket 6.

[0069] It should be noted that the folding frame 1 has an open state and a folded state. When the folding frame 1 is open, the front pedal support 6 is in the second position, and the mobile device is in the fully open state. When the folding frame 1 is in the folded state, the front pedal support 6 is in the first position, and the mobile device is in the fully folded state.

[0070] When the folding frame 1 is in the open state, it can not only move mobile devices, but also carry users or items.

[0071] 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.

[0072] It is worth noting that the first angle is the angle at which the front foot pedal 5 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.

[0073] This invention movably mounts a front footrest bracket 6 to the front end of a folding frame 1 via a first connector 7. The front footrest bracket 6 can rotate between a first position and a second position. When the front footrest bracket 6 is in the first position, it is folded. When the front footrest bracket 6 is in the second position, it forms a first angle with the folding frame 1, and the front footrest 5 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 6 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 6, results in a more compact folded wheelchair, making it easier for users to transport it into a vehicle.

[0074] Specifically, the front pedal bracket 6 has a U-shaped structure.

[0075] It should be noted that the front pedal bracket 6 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.

[0076] Furthermore, the first connector 7 includes: a first protruding connecting portion 71, a second protruding connecting portion 72, a first hinge and a second hinge; a first screw 73, a first nut 74, a second screw 75 and a second nut 76;

[0077] The first protruding connecting part 71 and the second protruding connecting part 72 are disposed at the front end of the folding frame 1;

[0078] The first end of the front pedal bracket 6 is connected to the first protruding connecting part 71 via a first hinge;

[0079] The second end of the front pedal bracket 6 is connected to the second protruding connecting part 72 via the second hinge;

[0080] Both the first and second ends of the front pedal bracket 6 are provided with limiting extensions;

[0081] The limiting extension is used to abut against the folding frame 1 when the front pedal bracket 6 is in the second position.

[0082] It should be noted that by setting a first protruding connecting part 71, a second protruding connecting part 72, a first screw 73, a first nut 74, a second screw 75, and a second nut 76, and setting the first protruding connecting part 71 and the second protruding connecting part 72 at the front end of the folding frame 1, the first end of the front pedal bracket 6 is connected to the first protruding connecting part 71 through a first hinge, and the second end of the front pedal bracket 6 is connected to the second protruding connecting part 72 through a second hinge. Limiting extensions are provided at both the first and second ends of the front pedal bracket 6. Therefore, when the folded mobile device is opened, the front pedal bracket 6 can rotate downwards under its own weight, i.e., rotate from the first position to the second position. Then, the limiting extensions abut against the folding frame 1, allowing the front pedal bracket 6 to maintain a first angle with the folding frame 1, thus supporting the user's foot. Furthermore, when the mobile device needs to be folded, the front pedal bracket 6 can be folded by rotating it upwards, greatly improving the efficiency of folding and opening the mobile device.

[0083] Furthermore, the first hinge component includes: a first screw 73 and a first nut 74;

[0084] Both the first protruding connecting part 71 and the first end of the front pedal bracket 6 are provided with a first screw hole for the first screw 73 to pass through;

[0085] The first nut 74 is threadedly engaged with the first screw 73;

[0086] And / or, the second hinge includes: a second screw 75 and a second nut 76;

[0087] The second protruding connecting part 72 and the second end of the front pedal bracket 6 are both provided with a second screw hole for the second screw 75 to pass through;

[0088] The second nut 76 is threadedly engaged with the second screw 75.

[0089] It should be noted that the first hinge component can be a combination of the first screw 73 and the first nut 74, or it can be other (hing) components. Those skilled in the art can choose according to their needs.

[0090] The second hinge can be a combination of the second screw 75 and the second nut 76, or it can be other (hing) components. Those skilled in the art can choose according to their needs.

[0091] Preferably, both the first screw 73 and the second screw 75 are M6 screws.

[0092] It should be noted that the first screw 73 and the second screw 75 can both be set to M6 screws, or they can be set to other screws. Those skilled in the art can choose according to their needs.

[0093] Preferably, the first protruding connecting portion 71 and the second protruding connecting portion 72 are provided with limiting grooves that cooperate with one side of the front pedal 5.

[0094] It should be noted that when the front pedal bracket 6 is in the first position, the side of the front pedal 5 closest to the folding frame 1 can be engaged in the limiting groove, effectively preventing the front pedal bracket 6 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.

[0095] Furthermore, the first connector 7 also includes: a plurality of gaskets 77;

[0096] A washer 77 is provided between the first protruding connecting part 71 and the first end of the front pedal bracket 6, between the first protruding connecting part 71 and the second end of the front pedal bracket 6, between the first nut 74 and the first end of the front pedal bracket 6, and between the second nut 76 and the second end of the front pedal bracket 6.

[0097] It should be noted that by providing a duckbill washer 77 between the first protruding connecting part 71 and the first end of the front pedal bracket 6, and by providing a duckbill washer 77 between the first protruding connecting part 71 and the second end of the front pedal bracket 6, by providing a duckbill washer 77 between the first nut 74 and the first end of the front pedal bracket 6, and by providing a washer 77 between the second nut 76 and the second end of the front pedal bracket 6, the washer 77 provides a certain elastic force to the first nut 74 and the second nut 76 through the tightening of the first nut 74 and the second nut 76, preventing the first nut 74 and the second nut 76 from loosening. Therefore, by adjusting the tightness of the first screw 73 and the first nut 74 and the tightness of the second screw 75 and the second nut 76, the damping sensation of the rotation of the front pedal bracket 6 is achieved, thereby preventing the front pedal bracket 6 from falling quickly and hitting the user or surrounding objects when the folded mobile device is opened.

[0098] Specifically, gasket 77 is a duckbill gasket.

[0099] 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.

[0100] Specifically, the mobile device also includes: a second connector 8 and a rear auxiliary wheel assembly 9;

[0101] The second connector 8 is located at the rear end of the folding frame 1;

[0102] The rear auxiliary wheel assembly 9 is detachably mounted on the second connector 8.

[0103] It should be noted that the rear end of the folding frame 1 is equipped with a rear foot pedal. When the wheelchair needs to pass through steps or obstacles, it can step on the rear foot pedal to make the rear auxiliary wheel 91 touch the ground and lift the front wheel up to pass through the steps or obstacles.

[0104] This utility model detachably mounts the rear auxiliary wheel assembly 9 to the rear end of the folding frame 1 via the second connector 8. This not only allows the front wheels to pass over steps or obstacles, but also allows the folding frame 1 to be folded and the rear auxiliary wheel assembly 9 to be removed from the folding frame 1 when the mobile device needs to be transported, thereby reducing the overall size of the mobile device and making it easier for users to transport it into the vehicle.

[0105] It is worth noting that, in the folding state, the rear auxiliary wheel assembly 9 of the folding frame 1 of this application can cooperate with the front wheels to enable the wheelchair to stand upright (see reference). Figure 11 If the rear auxiliary wheel assembly 9 is removed, the wheelchair can stand upright by coordinating the front and rear wheels (see reference). Figure 10 ).

[0106] For details, please refer to Figure 1 , combined Figures 5 to 9 The rear auxiliary wheel assembly 9 includes: a rear auxiliary wheel 91, a rear auxiliary wheel bracket 92, and a locking element;

[0107] The rear auxiliary wheel 91 is rotatably mounted on the first end of the rear auxiliary wheel bracket 92;

[0108] The second connector 8 is located at the rear end of the folding frame 1 and is used to cooperate with the second end of the rear auxiliary wheel bracket 92.

[0109] A locking element is provided on the rear auxiliary wheel bracket 92 to prevent the second end of the rear auxiliary wheel bracket 92 from separating from the second connector 8.

[0110] It should be noted that the rear auxiliary wheel 91 is rotatably mounted on the first end of the rear auxiliary wheel bracket 92, and the second connecting piece 8 is located at the rear end of the folding frame 1 and cooperates with the second end of the rear auxiliary wheel bracket 92. The locking piece is located on the rear auxiliary wheel bracket 92 and restricts the separation of the second end of the rear auxiliary wheel bracket 92 from the connecting piece. Thus, when the folding frame 1 is in the open state, it not only restricts the separation of the second end of the rear auxiliary wheel bracket 92 from the second connecting piece 8, but also ensures the connection strength between the rear auxiliary wheel bracket 92 and the connecting piece. Therefore, when facing steps or obstacles, it can provide sufficient support strength when the rear auxiliary wheel 91 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 92 can be quickly separated from the connecting piece by unlocking the locking piece, which is convenient for users to disassemble the rear auxiliary wheel bracket 92 and improve the folding efficiency of the wheelchair.

[0111] It should also be noted that the locking element can be set in the rear auxiliary wheel bracket 92, or in the second connecting member 8, or it can be set separately (that is, the locking element is not set in the rear auxiliary wheel bracket 92 or the second connecting member 8; when connection is required, the locking element can be used to restrict the second end of the rear auxiliary wheel bracket 92 from the second connecting member 8). Those skilled in the art can choose according to their needs.

[0112] Furthermore, the locking component in this application can specifically be a connector, that is, at the connection between the rear auxiliary wheel bracket 92 and the second connector 8, the locking component is detachably connected to the rear auxiliary wheel bracket 92 and / or the second connector 8 to restrict the separation of the rear auxiliary wheel bracket 92 and the second connector 8; it can also be a limiting component, that is, when the rear auxiliary wheel bracket 92 and the second connector 8 are engaged, it is achieved by restricting either the rear auxiliary wheel bracket 92 or the second connector 8 from disengaging from the engaging structure of the other. Preferably, the number of rear auxiliary wheel assemblies 9 can be one or two.

[0113] It should be noted that when the number of rear auxiliary wheel assemblies 9 is set to 1, the rear auxiliary wheel assembly 9 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 9 and the two rear wheels can form a stable triangular structure. When the number of rear auxiliary wheel assemblies 9 is set to 2, the two rear auxiliary wheel assemblies 9 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 9 and the two rear wheels can form a stable quadrilateral structure.

[0114] Furthermore, the second connector 8 has a socket for inserting the second end of the rear auxiliary wheel bracket 92.

[0115] It should be noted that by opening a socket for inserting the second end of the rear auxiliary wheel bracket 92 into the second connector 8, when assembling the folding frame 1 and the rear auxiliary wheel assembly 9, it is only necessary to insert the second end of the rear auxiliary wheel bracket 92 into the socket of the second connector 8, and then the locking member restricts the second end of the rear auxiliary wheel bracket 92 from coming out of the socket of the second connector 8. When it is necessary to separate the rear auxiliary wheel assembly 9 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 92 to come out of the socket of the second connector 8. This is easy to operate, effectively improves the efficiency of user installation and disassembly, and greatly enhances the user experience.

[0116] It should also be noted that the second connector 8 is connected to the rear auxiliary wheel bracket 92 by a plug-in connection, which can further ensure the connection strength between the second connector 8 and the rear auxiliary wheel bracket 92.

[0117] Preferably, the other end of the second connector 8 is connected to the folding frame 1 by bolts.

[0118] It should be noted that the other end of the second connector 8 can be connected to the folding frame 1 by bolts or by welding, and those skilled in the art can choose according to their needs.

[0119] Specifically, the locking components include: a V-shaped spring 93 and an unlocking button 94;

[0120] One end of the V-shaped spring 93 is provided with a pressing point;

[0121] The side wall of the socket has through holes for the pressing point to engage;

[0122] The unlock button 94 is located in the through hole, and the unlock button 94 can be driven by external force to disengage the pressing point from the through hole.

[0123] It should be noted that this application can use a V-shaped spring 93 or other components (such as a spring clip) that can prevent the second end of the rear auxiliary wheel bracket 92 from dislodging from the socket of the second connector 8. Those skilled in the art can choose according to their needs.

[0124] It should also be noted that when the rear auxiliary wheel 91 needs to be disassembled, external force is applied to the unlock button 94 to disengage the pressing point from the through hole. At this time, the second end of the rear auxiliary wheel bracket 92 can be easily pulled out from the socket of the second connector 8. During assembly, the second end of the rear auxiliary wheel bracket 92 is simply inserted into the socket of the second connector 8 until the pressing point of the V-shaped spring 93 is engaged in the through hole to achieve a firm connection between the rear auxiliary wheel bracket 92 and the second connector 8.

[0125] Further, see Figure 1 and combined Figures 8 to 9The mobile device also includes: a seat cushion 2, a backrest 3, and a third connector 4;

[0126] The seat cushion 2 is mounted on the folding frame 1;

[0127] The backrest 3 is rotatably connected to the seat cushion 2 via the third connector 4.

[0128] It should be noted that the seat cushion 2 is set on the folding frame 1, and the backrest 3 is rotatably connected to the seat cushion 2 through the third connector 4. This allows the user to adjust the angle of the backrest 3 according to their riding habits, greatly improving the user's comfort.

[0129] It should also be noted that the backrest 3 is rotatably connected to the seat cushion 2 via the third connector 4, thus allowing the wheelchair to be folded as a whole by changing the angle between the backrest 3 and the seat cushion 2 when the folding frame 1 is folded (see reference). Figure 10 and Figure 11 ).

[0130] Specifically, the third connecting member includes: a backrest connecting member 41, a backrest fixing member 42, a bushing 43, a spring washer 44, a third screw 45, a first limiting member, and a second limiting member;

[0131] The backrest fastener 42 is located at the lower end of the backrest 3;

[0132] The backrest fastener 42 has a first shaft hole 421;

[0133] Bushings 43 are provided on both sides of the first shaft hole 421;

[0134] One end of the backrest connector 41 is connected to the seat cushion 2, and the other end is provided with a second shaft hole 411;

[0135] The third screw 45 passes through the bushing 43, the second shaft hole 411 and the spring washer 44 and is threadedly connected to the backrest connector 41.

[0136] The first limiting member is provided on the backrest fixing member 42;

[0137] The second limiting member is provided on the backrest connector 41 and cooperates with the second limiting member to allow the backrest 3 to rotate within a preset angle range.

[0138] It should be noted that by setting the first and second limiters, the user's accidental operation that causes the backrest angle to be adjusted too much can be avoided, further improving the user experience.

[0139] Preferably, the adjustment angle between the backrest 3 and the seat cushion 2 is 33.22 degrees.

[0140] It should be noted that the adjustment angle between the backrest 3 and the seat cushion 2 can be 33.22 degrees or other adjustment degrees. Those skilled in the art can achieve this by changing the specific positions of the first and second limiting members.

[0141] Specifically, the backrest fixing member 42 has multiple first wire passage grooves 422.

[0142] It should be noted that by opening multiple first wire passage grooves 422 in the backrest fixing member 42, the wiring harness connected to the operation buttons can be conveniently routed, and the wiring harness can be protected to prevent damage to the wiring harness due to external impact.

[0143] Furthermore, the mobile device also includes: an upper cover 10 and a lower cover 11;

[0144] The upper cover plate 10 is fixed to the side of the backrest fastener 42 with the first wire groove 422 by bolts;

[0145] The lower cover plate 11 is fixed to the third connector 4 by bolts;

[0146] The side of the lower cover plate 11 that contacts the backrest fixing member 42 has multiple second wire passage grooves corresponding to multiple first wire passage grooves.

[0147] It should be noted that by setting a cover plate and a lower cover plate 11, and opening multiple second wire passage grooves corresponding to multiple first wire passage grooves on the side of the lower cover plate 11 that contacts the backrest fixing member 42, and fixing the upper cover plate 10 to the side of the backrest fixing member 42 that has the first wire passage groove 422 by bolts, and fixing the lower cover plate 11 to the third connector 4 by bolts, the wire harness can be further protected and the overall aesthetics of the third connector 4 can be improved.

[0148] This utility model embodiment also provides another mobile device, see [link to documentation]. Figure 1 and combined Figures 8 to 9 , Figure 1 This is a structural diagram of a mobile device, which includes: a folding frame 1, a seat cushion 2, a backrest 3, and a third connecting member 4;

[0149] In this embodiment of the utility model, the seat cushion 2 is set on the folding frame 1, and the backrest 3 is rotatably connected to the seat cushion 2 through the third connector 4. Thus, the user can adjust the angle of the backrest 3 according to the user's riding habits, which greatly improves the user's comfort. When the wheelchair needs to be folded, the angle between the backrest 3 and the seat cushion 2 can be adjusted to further fold the wheelchair, making the overall size of the folded wheelchair more compact and convenient for the user to carry.

[0150] 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, comprising: include: Folding frame, front foot pedal, front foot pedal bracket and first connector; The front pedal bracket is movably mounted on the front end of the folding frame via the first 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.

2. The mobile device of claim 1, wherein, The front pedal bracket has a U-shaped structure.

3. The mobile device of claim 2, wherein, The first 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.

4. The mobile device according to claim 3, characterized in that, The first hinge component includes: a first 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 first screw to pass through; The first nut is threadedly engaged with the first screw. And / or, the second hinge includes: a second screw and a second nut; Both the second protruding connecting part and the second end of the front pedal bracket are provided with a second screw hole for the second screw to pass through; The second nut is threaded into the second screw.

5. The mobile device of claim 4, wherein, The first connector further includes: a plurality of 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.

6. The mobile device of claim 5, wherein, The gasket is a duckbill gasket.

7. The mobile device of any one of claims 1 to 6, wherein, Also includes: Second connector and rear auxiliary wheel assembly; The second connector is located at the rear end of the folding frame; The rear auxiliary wheel assembly is detachably mounted on the second connector.

8. The mobile device of claim 7, wherein, 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 second 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 second connecting member.

9. The mobile device of claim 8, wherein, The second connector has a socket for inserting the second end of the rear auxiliary wheel bracket.

10. The mobile device of claim 9, wherein, 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.

11. The mobile device according to any one of claims 1 to 6, characterized in that, Also includes: Seat cushion, backrest, and third connector; The seat cushion is disposed on the folding frame; The backrest is rotatably connected to the seat cushion via the third connector.

12. The mobile device of claim 11, wherein, The third connecting member includes: a backrest connecting member, a backrest fixing member, a bushing, a spring washer, a third screw, a first limiting member, and a second limiting member; The backrest fastener is located at the lower end of the backrest; The backrest fastener has a first shaft hole; The bushings are provided on both sides of the first shaft hole; One end of the backrest connector is connected to the seat cushion, and the other end has a second shaft hole; The third screw passes through the bushing, the second shaft hole and the spring washer and is threadedly connected to the backrest connector. The first limiting member is disposed on the backrest fixing member; The second limiting member is disposed on the backrest connector and cooperates with the second limiting member to allow the backrest to rotate within a preset angle range.

13. The mobile device according to claim 11, characterized in that, The backrest fastener has multiple first wire guide grooves.

14. The mobile device according to claim 13, 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 third 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.

15. A mobile device, characterized in that, include: Folding frame, seat, backrest, and third connector; The seat cushion is disposed on the folding frame; The backrest is rotatably connected to the seat cushion via the third connector.

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