Automatic folding bicycle

Abstract

The present invention discloses an automatic folding bicycle, which includes automatic folding wheels and a frame. An electrically controlled rotating arm locking device is provided on at least one of a front fork assembly, a rear fork assembly, an arm assembly, a handlebar assembly or a pedal assembly of the frame, and the first end and the second end of the assembly are locked and fixed when a locking instruction is received, and the first end and the second end of the assembly are separated and folded when a folding instruction is received. The present invention provides an electrically controlled rotating arm locking device on the frame, and drives at least one of a front fork assembly, a rear fork assembly, an arm assembly, a handlebar assembly or a pedal assembly to fold by an electrically controlled manner, so as to realize automatic folding of the entire bicycle, improve folding efficiency, reduce space occupied after folding, and facilitate users to carry or transport.

Description

Technical Field

[0001] The invention relates to the technical field of bicycles, in particular to an automatic folding bicycle. Background Art

[0002] In order to realize the portable carrying or transportation of the vehicle, folding the bicycle has become a demand of some users for bicycles. At present, with the development of the process design research of bicycles, folding the bicycle has become an important function that users consider for bicycles.

[0003] In the structural design of bicycle folding, manual folding is still adopted, which is time-consuming and labor-intensive, has low folding efficiency, and still occupies a large space after folding, which is inconvenient for users to carry or transport. Therefore, how to improve the folding efficiency of bicycles so as to facilitate users to carry or transport is a technical problem that needs to be solved urgently.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of the present invention is to provide an automatic folding bicycle, aiming to solve the technical problems that the existing bicycle folding scheme adopts a manual folding method, which is time-consuming and labor-intensive, has low folding efficiency, and still occupies a large space after folding, making it inconvenient for users to carry or transport.

[0006] To achieve the above object, the present invention provides an automatic folding bicycle, comprising automatic folding wheels and a frame, wherein the frame comprises a front fork assembly, a rear fork assembly, an arm assembly, a handlebar assembly, a pedal assembly and a seat assembly, and the frame further comprises at least one electrically controlled rotating arm locking device; wherein:

[0007] The electronically controlled rotating arm locking device is arranged in at least one of the front fork assembly, rear fork assembly, arm assembly, handlebar assembly or pedal assembly, and is used to lock and fix the first end and the second end of the assembly when a locking command is received, and to separate and fold the first end and the second end of the assembly when a folding command is received.

[0008] In the present invention, an electrically controlled rotating arm locking device is provided on at least one of the front fork assembly, the rear fork assembly, the bicycle arm assembly, the handlebar assembly, the pedal assembly and the seat assembly, so as to realize efficient automatic folding or automatic resetting of the bicycle.

[0009] Optionally, the component includes a vehicle arm component, the first end is the front end of the vehicle arm, the second end is the rear end of the vehicle arm, and the electrically controlled rotating arm locking device connects the front end of the vehicle arm and the rear end of the vehicle arm so that the front end of the vehicle arm and the rear end of the vehicle arm perform a rotational motion.

[0010] In the present invention, an electrically controlled rotating arm locking device is provided at the vehicle arm assembly, the front end of the vehicle arm and the rear end of the vehicle arm are independently provided, and the electrically controlled rotating arm locking device is used to control the rotation thereof to perform folding or resetting, so that the space occupied after folding is small.

[0011] Optionally, the frame further includes a first frame connecting rod, the seat assembly is rotatably connected to the rear end of the vehicle arm, the first end of the first frame connecting rod is rotatably connected to the front end of the vehicle arm, and the second end of the first frame connecting rod is rotatably connected to the seat assembly.

[0012] In the present invention, the first frame connecting rod is arranged at the front end of the seat assembly and the vehicle arm, so as to increase the stability of the frame.

[0013] Optionally, the component includes a front fork assembly, the first end is the lower end of the front fork, the second end is the upper end of the front fork, and the electronically controlled rotating arm locking device connects the lower end of the front fork and the upper end of the front fork so that the lower end of the front fork and the upper end of the front fork perform a rotational action.

[0014] In the present invention, an electrically controlled rotating arm locking device is arranged at the front fork assembly, the lower end and the upper end of the front fork are arranged independently, and the electrically controlled rotating arm locking device is used to control their rotation to perform folding or resetting, so that the space occupied after folding is small.

[0015] Optionally, the component includes a rear fork assembly, the first end is a pedal end, the second end is a rear wheel end, and the electrically controlled rotating arm locking device connects the pedal end and the rear wheel end so that the pedal end and the rear wheel end perform a rotational action; the frame also includes a second frame connecting rod, the first end of the second frame connecting rod is rotatably connected to the seat assembly, and the second end of the second frame connecting rod is rotatably connected to the rear wheel end.

[0016] In the present invention, an electrically controlled rotating arm locking device is arranged at the rear fork assembly, the pedal end and the rear wheel end are arranged independently, and the electrically controlled rotating arm locking device is used to control their rotation to perform folding or resetting, so that the space occupied after folding is small.

[0017] Optionally, the frame further includes a front fender assembly, and the front fender assembly includes:

[0018] A fender screw, the fender screw being rotatably connected to the front fork assembly;

[0019] A front fender, wherein the front fender is provided with fender threads, and the fender threads are threadedly connected to the fender screw;

[0020] A fender driving device, the fender driving device is connected to the fender screw and drives the fender screw to rotate;

[0021] A front fender link, wherein a first end of the front fender link is rotatably connected to the front fork assembly, and a second end of the fender link is rotatably connected to the front fender.

[0022] In the present invention, a rotatable front fender assembly is arranged on the vehicle frame, thereby further reducing the space occupied after folding.

[0023] Optionally, the frame further includes a rear fender assembly, and the rear fender assembly includes:

[0024] a first rear fender, wherein a first end of the first rear fender is rotatably connected to the pedal end;

[0025] a second rear fender, wherein a first end of the second rear fender is connected to a second end of the first rear fender;

[0026] a first rear fender link, wherein a first end of the first rear fender link is rotatably connected to a second end of the first rear fender and a first end of the second rear fender, and a second end of the first rear fender link is rotatably connected to the seat assembly;

[0027] A second rear fender link, wherein the first end of the second rear fender link is rotatably connected to the second end of the second rear fender, and the second end of the second rear fender link is rotatably connected to the rear wheel end.

[0028] In the present invention, a rotatable rear fender assembly is arranged on the vehicle frame, thereby further reducing the space occupied after folding.

[0029] Optionally, the frame further includes a first chain stopper wheel and a second chain stopper wheel, the assembly includes a pedal assembly, and the pedal assembly includes a first crank, a second crank and a pedal; wherein:

[0030] The first end of the first crank is connected to the axle of the first chain stopper wheel, the first end of the second crank is connected to the second end of the first crank, and the pedal is connected to the second end of the second crank;

[0031] The electrically controlled rotating arm locking device connects the first crank and the second crank to enable the first crank and the second crank to perform a rotating action.

[0032] In the present invention, an electrically controlled rotating arm locking device is provided on the pedal assembly, the first crank and the second crank are independently provided, and the electrically controlled rotating arm locking device is used to control their rotation to perform folding or resetting, so that the space occupied after folding is small.

[0033] Optionally, the frame further includes a chain, and the first chain stopper wheel and the second chain stopper wheel are respectively provided with at least one fixing point, and the chain is fixed to the first chain stopper wheel and the second chain stopper wheel via the fixing points.

[0034] In the present invention, the chain is fixed at a fixing point on the chain stopper wheel so that the chain will not fall off after being folded, and is convenient for rapid restoration.

[0035] Optionally, the component includes a handlebar assembly, the first end is the left end of the handlebar, and the second end is the right end of the handlebar. The handlebar assembly also includes a connecting member, the first end of the connecting member is fixed to the front fork assembly, and the other end of the connecting end is provided with a first extension rod and a second extension rod, the first extension rod and the second extension rod are respectively connected to the left end of the handlebar and the right end of the handlebar through an electrically controlled rotation locking device, so that the left end of the handlebar and the right end of the handlebar can respectively perform a rotation action close to the front fork assembly.

[0036] In the present invention, an electrically controlled rotating arm locking device is arranged on the handlebar assembly, the left end and the right end of the handlebar are arranged independently, and the electrically controlled rotating arm locking device is used to control their rotation to perform folding or resetting, so that the space occupied after folding is small.

[0037] Optionally, the automatic rotating arm locking device comprises a first rotating arm and a second rotating arm which are rotatably connected, the first rotating arm is provided with a first cavity, and the second rotating arm is provided with a second cavity; wherein:

[0038] The first cavity is provided with a locking drive device and a first locking mechanism, the first locking mechanism includes a first rotating member and a second rotating member, and the locking drive device drives the first rotating member and the second rotating member to perform a rotation action;

[0039] The second rotating arm is fixedly provided with a third rotating member, and the third rotating member cooperates with the rotating action of the first rotating member to drive the second rotating arm to rotate;

[0040] The second cavity is provided with a second locking mechanism, which cooperates with the second rotating member to lock the first rotating arm and the second rotating arm when the electric-controlled rotating arm locking device is docked, and to unlock the first rotating arm and the second rotating arm when the electric-controlled rotating arm locking device is folded.

[0041] In the present invention, the automatic rotating arm locking device utilizes the first rotating member provided in the first rotating arm to cooperate with the third rotating member provided in the second rotating arm to achieve the port docking of the first rotating arm and the second rotating arm, and then utilizes the second rotating member of the first rotating arm to cooperate with the second locking mechanism in the second rotating arm to perform the locking action. By dividing the rotating arm locking process into two steps of docking and locking, the corresponding structures are executed, which can ensure the locking stability between the locking arms and the flexibility of unlocking.

[0042] Optionally, the wheel is an automatic folding wheel, which includes a tire, a hub, a plurality of spokes and a rotating shaft, wherein the tire is arranged on the periphery of the hub, the rotating shaft is fixedly arranged on the axis of the hub through a plurality of spokes, the hub includes a plurality of hub structures connected end to end, the spokes include telescopic spokes and rotating spokes, the hub structure includes a first structure, a second structure and a connecting structure, and the connecting structure is arranged between adjacent first structures and second structures; wherein:

[0043] The first end of the telescopic spoke is fixed between adjacent first structures, the second end of the telescopic spoke is fixed to the rotating shaft, the rotating shaft is provided with a first telescopic device, the second end of the telescopic spoke cooperates with the first telescopic device to drive the telescopic spoke to perform a telescopic action;

[0044] The first end of the rotating spoke is fixed to the second structure, the second end of the rotating spoke is rotatably connected to the rotating shaft, and the two ends of the connecting structure are provided with second telescopic devices, and the second telescopic devices cooperate with the first structure or the second structure to lock or unlock the connecting structure and the first structure or the second structure;

[0045] The rotating spokes include a plurality of spoke segments that are rotatably connected. When the connecting structure is unlocked from the first structure or the second structure, the first telescopic device drives the telescopic spokes to extend, and each of the spoke segments rotates around the rotating connection in a first direction to fold the rotating spokes. When the connecting structure is locked from the first structure or the second structure, the first telescopic device drives the telescopic spokes to shorten, and each of the spoke segments rotates around the rotating connection in a second direction to reset the rotating spokes.

[0046] In the present invention, when the wheel is folded, the second telescopic device is controlled to perform a telescopic action to provide a folding gap between the first structure, the second structure and the connecting structure, and then the first telescopic device is controlled to perform a telescopic action to complete the automatic retractable folding of the wheel hub, thereby improving the convenience of wheel folding. At the same time, when the wheel is reset, the reverse action is performed to quickly reset and fix the first structure, the second structure and the connecting structure, thereby enhancing the stability of the wheel after folding.

[0047] In the present invention, the automatic folding bicycle includes automatic folding wheels and a frame. By arranging an electrically controlled rotating arm locking device on at least one of the front fork assembly, rear fork assembly, arm assembly, handlebar assembly or pedal assembly of the frame, the first end and the second end of the assembly are locked and fixed when a locking command is received, and the first end and the second end of the assembly are separated and folded when a folding command is received. The present invention arranges an electrically controlled rotating arm locking device on the frame, and drives at least one of the front fork assembly, rear fork assembly, arm assembly, handlebar assembly or pedal assembly to fold by an electrically controlled manner, so as to realize automatic folding of the entire bicycle, improve folding efficiency, reduce the space occupied after folding, and facilitate users to carry or transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0049] Figure 1 It is a structural schematic diagram of the automatic folding bicycle of the present invention;

[0050] Figure 2 It is a structural schematic diagram of the pedal assembly in the present invention;

[0051] Figure 3 It is a schematic diagram of the structure of the automatic folding bicycle after folding in the present invention;

[0052] Figure 4 It is a structural schematic diagram of the electric-controlled rotating arm locking device of the present invention;

[0053] Figure 5 It is a structural schematic diagram of the docking of the electric-controlled rotating arm locking device in the present invention;

[0054] Figure 6 It is a structural schematic diagram of the locking of the electric-controlled rotating arm locking device in the present invention;

[0055] Figure 7 The schematic diagram of the structure of the dust cover in the present invention is

[0056] Figure 8 This is a schematic diagram of the automatic folding wheel of the present invention before folding;

[0057] Fig. 9 For the present invention Figure 8 A partial enlarged view of part A;

[0058] Fig.10 It is a structural schematic diagram of the arc surface of the wedge block in the present invention;

[0059] Fig.11 is a schematic diagram of the structure of the first motor in the present invention;

[0060] Fig.12 For the present invention Figure 8 A partial enlarged view of part B;

[0061] Fig.13 It is a structural schematic diagram of the end surface of the wheel hub structure in the present invention;

[0062] Fig.14 This is a schematic diagram of the automatically folding wheel of the present invention after folding.

[0063] Description of Figure Numbers:

[0064] 1 Automatic folding wheel; 1-1 tire; 1-2 hub structure; 1-201 first structure; 1-202 connecting structure; 1-203 second structure; 1-2021 second telescopic device; 1-2022 second telescopic mechanism; 1-3 spokes; 1-301 telescopic spokes; 1-3011 first telescopic mechanism; 1-3012 folding drive assembly; 1-30121 trapezoidal locking block; 1-30122 wedge-shaped locking block; 1-3013 1-spring; 1-3014 closed wheel pressure plate; 1-3015 worm gear assembly; 1-302 rotating spoke; 1-4 rotating shaft; 1-401 first telescopic device; 1-402 gear; 1-403 wheel axle; 1-404 brush; 1-405 wire; 1-406 conductive ring; 1-407 brush holder; 1-408 motor shaft; 1-5 clamping ring; 1-6 rivet; 1-7 rubber layer; 2 front fork assembly; 3 rear fork assembly; 4 arm assembly; 5 Handlebar assembly; 6 pedal assembly; 6-1 first crank; 6-2 second crank; 6-3 pedal; 7 seat assembly; 8 electric control rotating arm locking device; 8-1 first rotating arm; 8-2 second rotating arm; 8-3 locking drive device; 8-4 first rotating member; 8-5 second rotating member; 8-6 third rotating member; 8-7 second locking mechanism; 8-8 worm stopper; 8-9 worm sleeve; 8-10 worm sleeve stopper; 8-11 pulley; 8-12 third spring; 8-13 dust cover; 9 first frame link; 10 second frame link; 11 front fender assembly; 11-1 fender screw; 11-2 front fender; 11-3 fender drive device; 11-4 front fender link; 12 rear fender assembly; 12-1 first rear fender; 12-2 second rear fender; 12-3 first rear fender link; 12-4 second rear fender link; 13 first chain stopper; 14 second chain stopper; 15 chain.

[0065] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0066] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0067] In order to realize the portable carrying or transportation of the vehicle, folding the bicycle has become a demand of some users for bicycles. At present, with the development of the process design research of bicycles, folding the bicycle has become an important function that users consider for bicycles.

[0068] In the structural design of bicycle folding, manual folding is still adopted, which is time-consuming and labor-intensive, has low folding efficiency, and still occupies a large space after folding, which is inconvenient for users to carry or transport. Therefore, how to improve the folding efficiency of bicycles so as to facilitate users to carry or transport is a technical problem that needs to be solved urgently.

[0069] In order to solve this problem, various embodiments of the automatic folding bicycle of the present invention are proposed. The automatic folding bicycle provided by the present invention is provided with an electric-controlled rotating arm locking device on the frame, and at least one of the front fork assembly, the rear fork assembly, the arm assembly, the handlebar assembly or the pedal assembly is driven to fold by electric control, so as to realize automatic folding of the entire bicycle, improve the folding efficiency, reduce the space occupied after folding, and facilitate users to carry or transport.

[0070] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0071] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0072] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0073] Reference Figure 1 , Figure 1 It is a schematic structural diagram of the automatic folding bicycle of the present invention.

[0074] like Figure 1 As shown, in an embodiment, the automatic folding bicycle includes an automatic folding wheel 1 and a frame, the frame includes a front fork assembly 2, a rear fork assembly 3, an arm assembly 4, a handlebar assembly 5, a pedal assembly 6 and a seat assembly 7, and the frame also includes at least one electrically controlled rotating arm locking device 8.

[0075] Specifically, the electronically controlled rotating arm locking device 8 is arranged in at least one of the front fork assembly 2, the rear fork assembly 3, the arm assembly 4, the handlebar assembly 5 or the pedal assembly 6, and is used to lock and fix the first end and the second end of the assembly when a locking command is received, and to separate and fold the first end and the second end of the assembly when a folding command is received.

[0076] In practical applications, the electronically controlled rotating arm locking device 8 may be provided in at least one of the front fork assembly 2 , the rear fork assembly 3 , the arm assembly 4 , the handlebar assembly 5 or the pedal assembly 6 .

[0077] In this embodiment, the assembly includes a vehicle arm assembly 4, the first end of which is the front end of the vehicle arm, and the second end of which is the rear end of the vehicle arm. The electrically controlled rotating arm locking device 8 connects the front end of the vehicle arm and the rear end of the vehicle arm. When an unlocking command is received, the front end of the vehicle arm and the rear end of the vehicle arm perform a downward rotation action. When a locking command is received, the front end of the vehicle arm and the rear end of the vehicle arm perform an upward rotation action so that the end faces of the front end of the vehicle arm and the rear end of the vehicle arm are butted.

[0078] It is easy to understand that by rotating the front end and the rear end of the vehicle arm downward, a retractable folding different from the folding of a traditional folding vehicle is achieved, which saves effort and occupies less space after folding.

[0079] The frame further includes a first frame connecting rod 9, the seat assembly 7 is rotatably connected to the rear end of the vehicle arm, the first end of the first frame connecting rod 9 is rotatably connected to the front end of the vehicle arm, and the second end of the first frame connecting rod 9 is rotatably connected to the seat assembly 7.

[0080] Therefore, when the front end and the rear end of the vehicle arm are rotated and folded, the first frame link 9 can perform corresponding rotation, thereby achieving flexible rotation during folding and ensuring stability during resetting.

[0081] In some embodiments, the component includes a front fork assembly, the first end is the lower end of the front fork, the second end is the upper end of the front fork, and the electronically controlled rotating arm locking device connects the lower end of the front fork and the upper end of the front fork. When an unlocking command is received, the lower end of the front fork and the upper end of the front fork perform a rotation action in a downward direction. When a locking command is received, the lower end of the front fork and the upper end of the front fork perform a rotation action in an upward direction so that the end faces of the lower end of the front fork and the upper end of the front fork are butted against each other.

[0082] In another embodiment, the assembly includes a rear fork assembly 3, a first end of which is a pedal end, and a second end of which is a rear wheel end. An electrically controlled rotating arm locking device 8 connects the pedal end and the rear wheel end. When an unlocking command is received, the pedal end and the rear wheel end perform a downward rotational movement. When a locking command is received, the pedal end and the rear wheel end perform a downward rotational movement so that the end faces of the pedal end and the rear wheel end are butted against each other. The frame also includes a second frame connecting rod 10, a first end of the second frame connecting rod 10 is rotationally connected to the seat assembly 7, and a second end of the second frame connecting rod 10 is rotationally connected to the rear wheel end.

[0083] It is easy to understand that by rotating the pedal end and the rear wheel end downward, a retractable folding different from the folding of a conventional folding vehicle is achieved, which saves effort and occupies less space after folding. At the same time, the second frame link 10 can achieve flexible rotation during folding and ensure stability during resetting.

[0084] In yet another embodiment, the vehicle frame further includes a front fender assembly 11, and the front fender assembly 11 includes a fender screw 11-1, a front fender 11-2, a fender driving device 11-3, and a front fender connecting rod 11-4.

[0085] Among them, the fender screw 11-1 is rotatably connected to the front fork assembly 2; the front fender 11-2 is provided with a fender thread, and the fender thread is threadably connected to the fender screw 11-1; the fender driving device 11-3 is connected to the fender screw 11-1 to drive the fender screw 11-1 to rotate; the first end of the front fender connecting rod 11-4 is rotatably connected to the front fork assembly 2, and the second end of the front fender connecting rod 11-4 is rotatably connected to the front fender 11-2.

[0086] On this basis, the vehicle frame further includes a rear fender assembly 12, and the rear fender assembly 12 includes a first rear fender 12-1, a second rear fender 12-2, a first rear fender link 12-3 and a second rear fender link 12-4.

[0087] Among them, the first end of the first rear fender 12-1 is rotatably connected to the pedal end; the first end of the second rear fender 12-2 is connected to the second end of the first rear fender 12-1; the first end of the first rear fender link 12-3 is rotatably connected to the second end of the first rear fender 12-1 and the first end of the second rear fender 12-2, and the second end of the first rear fender link 12-3 is rotatably connected to the seat assembly 7; the first end of the second rear fender link 12-4 is rotatably connected to the second end of the second rear fender 12-2, and the second end of the second rear fender link 12-4 is rotatably connected to the rear wheel end.

[0088] It is easy to understand that the front fender 11-2 is rotatably connected to the front fork assembly 2. When the front fork assembly 2 is rotated and folded, the fender screw 11-1 connected to the front fender 11-2 is rotated, thereby further reducing the volume occupied by the bicycle after folding.

[0089] It is easy to understand that the first rear fender 12-1 and the second rear fender 12-2 are rotatably connected with the first rear fender link 12-1 and the second rear fender link 12-4, so that when the rear fork assembly 3 is folded, it drives the first rear fender 12-1 and the second rear fender 12-2 to fold, further reducing the volume occupied by the bicycle after folding.

[0090] like Figure 2 As shown, in yet another embodiment, the frame further includes a first chain stopper wheel 13 and a second chain stopper wheel 14, and the assembly includes a pedal assembly 6, and the pedal assembly 6 includes a first crank 6-1, a second crank 6-2 and a pedal 6-3.

[0091] Among them, the first end of the first crank 6-1 is connected to the axle of the first chain stopper wheel 13, the first end of the second crank 6-2 is connected to the second end of the first crank 6-1, and the pedal 6-3 is connected to the second end of the second crank 6-2; the electronically controlled rotating arm locking device 8 connects the first crank 6-1 and the second crank 6-2, and when receiving an unlocking command, the first crank 6-1 and the second crank 6-2 perform a rotation action in a rotation direction close to the pedal 6-3, and when receiving a locking command, the first crank 6-1 and the second crank 6-2 perform a rotation action in a rotation direction away from the pedal 6-3.

[0092] The chain stopper may include a middle shaft stopper and a rear shaft stopper, which is composed of a stopper frame and a rollable small wheel. The stopper frame of the middle shaft stopper is fixed on the middle shaft, and the stopper frame of the rear shaft stopper is fixed on the rear wheel for placing the chain off the sprocket after folding.

[0093] Furthermore, the frame also includes a chain 15 , and the first chain stopper wheel 13 and the second chain stopper wheel 14 are respectively provided with at least one fixing point, and the chain 15 is fixed to the first chain stopper wheel 13 and the second chain stopper wheel 14 through the fixing points.

[0094] It should be noted that the automatic folding bicycle also includes a power supply battery and a control component. The power supply battery is used to supply energy when the automatic folding bicycle performs folding and resetting actions, and the control component is used to send control instructions.

[0095] In another embodiment, the component includes a handlebar assembly, the first end is the left end of the handlebar, and the second end is the right end of the handlebar. The handlebar assembly also includes a connecting member, the first end of the connecting member is fixed to the front fork assembly, and the other end of the connecting end is provided with a first extension rod and a second extension rod, the first extension rod and the second extension rod are respectively connected to the left end and the right end of the handlebar through an electrically controlled rotation locking device, so that the left end of the handlebar and the right end of the handlebar can respectively perform a rotation action close to the front fork assembly.

[0096] How the automatic folding bicycle works:

[0097] When folding, the control component sends a folding instruction to the corresponding electric-controlled rotating arm locking device 8. When receiving the locking instruction, at least one electric-controlled rotating arm locking device 8 arranged on the frame separates and folds the first end and the second end of the corresponding component. Figure 3 The figure is a schematic diagram of the structure of the automatic folding bicycle after folding;

[0098] When resetting, the control component sends a locking command to the corresponding electrically controlled rotating arm locking device 8, and at least one electrically controlled rotating arm locking device 8 arranged on the frame fixes and locks the first end and the second end of the component upon receiving the locking command.

[0099] Reference Figure 4 , Figure 4 It is a schematic structural diagram of the automatic rotating arm locking device of the present invention.

[0100] like Figure 4 As shown, in the embodiment, the electrically controlled rotating arm locking device comprises a first rotating arm 8-1 and a second rotating arm 8-2 which are rotatably connected, wherein the first rotating arm 8-1 is provided with a first cavity, and the second rotating arm 8-2 is provided with a second cavity.

[0101] Specifically, the first cavity is provided with a locking drive device 8-3 and a first locking mechanism, the first locking mechanism includes a first rotating member 8-4 and a second rotating member 8-5, the locking drive device 8-3 is connected to the first rotating member, and drives the first rotating member 8-4 and the second rotating member 8-5 arranged on the first rotating member to perform a rotation action.

[0102] It is easy to understand that the first rotating member 8-4 can be a worm, and the second rotating member 8-5 is a screw. The worm is arranged on the screw, and the locking drive device 8-3 is a reduction motor. When the reduction motor controls the screw to perform the first rotation action, the worm follows the screw to perform the second rotation action.

[0103] The second rotating arm 8-2 is fixedly provided with a third rotating member 8-6, and the third rotating member 8-6 cooperates with the rotation action of the first rotating member 8-4 to drive the second rotating arm 8-2 to rotate and dock the first rotating arm 8-1 and the second rotating arm 8-2; the second cavity is provided with a second locking mechanism 8-7, and the second locking mechanism 8-7 cooperates with the second rotating member 8-5 to lock the first rotating arm 8-1 and the second rotating arm 8-2 when the electric-controlled rotating arm locking device is docked, and unlock the first rotating arm 8-1 and the second rotating arm 8-2 when the electric-controlled rotating arm locking device is folded.

[0104] It is easy to understand that the third rotating member 8-6 is a worm wheel, which meshes with the worm, and the worm wheel follows the second rotation action of the worm, performs the third rotation action, and drives the second rotating arm 8-2 to rotate. In this embodiment, the worm follows the rotation of the screw, so that when the screw performs the first rotation, the worm performs the second rotation action, thereby realizing the docking and locking process, and the rotation of the two parts is driven by one driving device to complete the realization of the two actions, thereby simplifying the structure of the locking device.

[0105] It is easy to understand that in order to realize the end-to-end docking action of the first rotating arm 8-1 and the second rotating arm 8-2, a first protrusion is provided in the first cavity, and the first locking mechanism also includes a worm stopper 8-8, which is arranged on one side of the first protrusion. When the electric-controlled rotating arm locking device is docked, the reaction force applied to the worm is offset when the worm wheel follows the worm to perform the third rotation action.

[0106] It is easy to understand that in order to realize the end-to-end docking action of the first rotating arm 8-1 and the second rotating arm 8-2, the first cavity is provided with a second protrusion, wherein: the first locking mechanism also includes a worm sleeve 8-9, the worm sleeve 8-9 is connected to the worm sleeve, and the worm sleeve 8-9 can slide left and right in the first cavity of the first rotating arm 8-1 within a limited range; the worm sleeve is provided with a worm sleeve stopper 8-10, and the worm sleeve stopper 8-10 is arranged on one side of the second protrusion; a pulley is provided at the end of the second rotating arm 8-2, and when the electric-controlled rotating arm locking device is unlocked, the pulley contacts the worm sleeve stopper to fix the position of the second rotating arm.

[0107] Furthermore, the pulley is a D-type pulley, and the straight surface of the D-type pulley is arranged parallel to the second rotating arm 8-2, so that after the end surfaces of the first rotating arm 8-1 and the second rotating arm 8-2 are connected, the worm sleeve 8-9 moves left and right in the straight surface space of the D-type pulley following the rotation of the worm. In this embodiment, by setting the D-type pulley, after the end surfaces of the first rotating arm and the second rotating arm are connected, a space for the worm sleeve to move left and right is formed on the straight surface of the D-type pulley, thereby facilitating the unlocking action.

[0108] In another embodiment, the second locking mechanism 8-7 is a nut. When the electric-controlled rotating arm locking device is docked, the screw and the nut engage to lock the first rotating arm 8-1 and the second rotating arm 8-2. When the electric-controlled rotating arm locking device is folded, the screw and the nut separate to unlock the first rotating arm and the second rotating arm.

[0109] It should be noted that a spring 8-12 may also be provided in the second cavity, and the spring 8-12 is in contact with the second locking mechanism 7. When the electric-controlled rotating arm locking device is docked, the spring 8-12 provides a force in the direction of the second rotating part for the second locking mechanism, thereby improving the meshing effect between the second locking mechanism 8-7 and the second rotating part 8-5.

[0110] Working principle of the electric controlled rotating arm locking device:

[0111] When performing docking actions, such as Figure 4 As shown, the reduction motor rotates clockwise and drives the screw to rotate. At this time, the worm wheel rotates clockwise, so the second rotating arm 8-2 rotates clockwise. At this time, the worm receives a reverse force to the right from the worm wheel, and the worm tends to slide from right to left or right. At this time, in order to maintain the position of the worm, the supporting force of the first rotating arm 8-1 on the worm stopper 8-8 can be used to offset the sliding tendency of the worm. At the same time, the reaction force of the worm sleeve 8-9 stopper and the arc surface of the D-type pulley is used to offset the sliding tendency of the worm, thereby controlling the second rotating arm 8-2 to rotate only clockwise, so that the end face of the second rotating arm 8-2 rotates in the direction where the end face of the first rotating arm 8-1 coincides.

[0112] like Figure 5 As shown, the reduction motor continues to rotate clockwise, and when the first rotating arm 8-1 and the second rotating arm 8-2 overlap horizontally, the second rotating arm 8-2 cannot rotate, that is, the worm wheel does not rotate. At this time, the straight surface of the D-type pulley is horizontal, leaving space, and the worm sleeve 8-9 block can slide to the right, and the worm drives the worm sleeve 8-9 to move to the right. The reduction motor continues to rotate clockwise, and the worm drives the worm sleeve 8-9 to continue to move to the right, and finally the screw of the right section of the worm is engaged with the nut in the second rotating arm 8-2, and the third spring 8-12 in the second rotating arm 8-2 will ensure more effective engagement between them.

[0113] When performing the locking action, Figure 6 As shown, the reduction motor continues to rotate, and when the worm is separated from the worm wheel, the nut in the second rotating arm 8-2 moves to the left, and the worm stopper 8-8 presses the worm sleeve 8-9 stopper to the right, and then the worm sleeve 8-9 stopper presses the first rotating arm 8-1 to the right, and at this time the first rotating arm 8-1 and the second rotating arm 8-2 are locked.

[0114] When performing the unlocking action, the reduction motor reverses and drives the screw to rotate. At this time, the nut in the second rotating arm 8-2 moves to the right, and under the action of the third spring 8-12, the screw moves to the left until it meshes with the worm gear. Due to the action of the worm sleeve 8-9 block and the D-type pulley, the second rotating arm 8-2 and the worm gear are still fixed and cannot rotate. As the reduction motor continues to reverse until the worm retreats to the left dead point, the worm sleeve 8-9 disengages from the D-type pulley, and the rotation of the worm drives the worm gear to rotate counterclockwise, so the second rotating arm 8-2 rotates in the opposite direction, and the first rotating arm 8-1 and the second rotating arm 8-2 are unlocked.

[0115] like Figure 7 As shown, in order to achieve external protection of the electric-controlled rotating arm locking device, a dust cover 8-13 can be set outside the electric-controlled rotating arm locking device, and the dust cover 8-13 matches the shape of the electric-controlled rotating arm locking device, that is, a placement space is set at the position corresponding to the D-type pulley and the worm gear of the dust cover 8-13, so as to protect the electric-controlled rotating arm locking device without hindering its rotation and locking actions.

[0116] Reference Figure 8 , Figure 8 It is a schematic structural diagram of the automatic folding wheel of the present invention.

[0117] like Figure 8 As shown, in the embodiment, the wheel is an automatic folding wheel, which includes: a tire 1-1, a hub 1-2, a plurality of spokes 1-3 and a rotating shaft 1-4, wherein the tire 1-1 is arranged on the periphery of the hub 1-2, and the rotating shaft 1-4 is fixedly arranged on the axis of the hub 1-2 through a plurality of spokes 1-3.

[0118] In actual application, the hub 1-2 includes a plurality of hub structures connected end to end, the spokes include telescopic spokes 1-301 and rotating spokes 1-302, the hub structure includes a first structure 1-201, a second structure 1-203 and a connecting structure 1-202, and the connecting structure 1-202 is arranged between the adjacent first structure 1-201 and the second structure 1-203.

[0119] It should be noted that the number of the first structure 1-201, the second structure 1-203 and the connecting structure 1-202 can be specifically set according to the situation, and the present embodiment does not limit this. When the wheel is large and the volume occupied by the wheel after folding is required to be higher, as many hub structures as possible can be set to ensure that the larger wheel occupies a smaller volume after folding.

[0120] In this embodiment, the number of the first structures 1-201 is 4, the number of the second structures 1-203 is 4, and the corresponding telescopic spokes 1-301 are 2 and 302 are 4. When there are multiple second structures 1-203, a connecting structure 1-202 can be set between each second structure 1-203 to achieve connection and folding between the second structures 1-202 and the second structures 1-202.

[0121] Specifically, the first end of the telescopic spoke is fixed between adjacent first structures 1-201, the second end of the telescopic spoke is fixed to the rotating shaft, the rotating shaft is provided with a first telescopic device 1-401, and the second end of the telescopic spoke cooperates with the first telescopic device 1-401 to drive the telescopic spoke 1-301 to perform a telescopic action.

[0122] The first end of the rotating spoke 1-302 is fixed to the second structure 1-203, and the second end of the rotating spoke 1-302 is rotatably connected to the rotating shaft 1-4. A second telescopic device 1-2021 is provided at both ends of the connecting structure 1-202. The second telescopic device 1-2021 cooperates with the first structure 1-201 or the second structure 1-203 to lock or release the connecting structure 1-202 and the first structure 1-201 or the second structure 1-203.

[0123] The rotating spoke 1-302 includes a plurality of spoke segments that are rotatably connected. When the connecting structure 1-202 is unlocked from the first structure 1-201 or the second structure 1-203, the first telescopic device 1-401 drives the telescopic spoke 1-301 to extend, and each spoke segment rotates along the first direction around the rotating connection to fold the rotating spoke 1-302. When the connecting structure 1-202 is locked from the first structure 1-201 or the second structure 1-203, the first telescopic device 1-401 drives the telescopic spoke 1-301 to shorten, and each spoke segment rotates along the second direction around the rotating connection to reset the rotating spoke 1-302.

[0124] It should be noted that the hub structure 1-2 can be a structure of any shape, such as a sector or any polygon with one side being an arc. As long as a number of hub structures 1-2 connected end to end can form a hub, it is within the description of the present invention, and this embodiment does not limit this. In this embodiment, the hub structure 1-2 is sector-shaped, and each sector-shaped hub structure 1-2 is connected end to end to form a circular hub.

[0125] Reference Fig. 9 , Fig. 9 This is a partial enlarged view of part A of the automatic folding wheel.

[0126] like Fig. 9As shown, in some embodiments, a first telescopic mechanism 1-3011 is provided in the telescopic spoke 1-301, and the first telescopic mechanism 1-3011 is used to cooperate with the first telescopic device 1-401 to perform a telescopic action, and a folding drive assembly 1-3012 is provided at the second end of the telescopic spoke.

[0127] Furthermore, the folding drive assembly 1-3012 includes: a trapezoidal locking block 1-30121 and a wedge-shaped locking block 1-30122, wherein the trapezoidal locking block 1-30121 is connected to the first telescopic mechanism 1-3011 and follows the first telescopic structure to perform telescopic action; and the wedge-shaped locking block 1-30122 is connected to the telescopic spoke 1-301 and is disposed on both sides of the wedge-shaped locking block 1-30122. Fig.10 As shown, the arc surface of the wedge-shaped locking block 1-30122 abuts against the first structure 1-201, and the two match to achieve a self-locking function, and the inclined surface of the wedge-shaped locking block 1-30122 contacts the inclined surface of the trapezoidal locking block 1-30121.

[0128] Specifically, the first telescopic mechanism 1-3011 is a screw barrel, the first telescopic device 1-401 is a first motor, a first screw is arranged in the screw barrel, and the first motor drives the first screw to rotate to control the screw barrel to perform a telescopic action. The trapezoidal locking block 1-30121 is fixed to the screw barrel, and the first screw barrel cannot rotate, but can only move up and down under the rotation of the first screw to achieve a telescopic action.

[0129] like Fig.11 As shown, in this embodiment, the first motor is equipped with a gear 1-402, the wheel axle 1-403 is fixed on the frame and fixedly connected to the motor shaft 1-408, and two brushes 1-404 are installed on the telescopic spoke 1-301, and the two brushes are fixed to the brush holder 1-407. There are two wires 1-405 on the brush, and the wires 1-405 are connected to the first motor and electrically connected to the two conductive rings 1-406 on the wheel axle 1-403. One conductive ring 1-406 is electrically connected to the wheel axle, and the other conductive ring 1-406 is electrically connected to a wire 1-405, and the wire is led out through the shaft hole. Through the setting of the first motor, the first telescopic structure is powered to realize the telescopic action of the telescopic spoke 1-301.

[0130] It should be noted that a worm gear assembly 1-3015 is provided at the other end of the first screw, and a gear is installed on the hollow shaft of the first motor. The gear is meshed with the gear on the worm, and the worm cooperates with the worm gear to realize the driving of the screw barrel by the first motor and realize the telescopic action of moving up and down.

[0131] It is easy to understand that the end of the telescopic spoke 1-301 can be provided with a first spring 1-3013. On this basis, the wedge-shaped locking block 1-30122 is connected to the telescopic spoke 1-301 through the first spring. When the trapezoidal locking block 1-30121 performs the telescopic action, the wedge-shaped locking block 1-30122 is driven to move in the axial direction of the telescopic spoke 1-301 to adjust the contact force between the wedge-shaped locking block and the first structure 1-201, thereby increasing the folding space between the wedge-shaped locking block 1-30122 and the first structure 1-201.

[0132] At the same time, the wedge-shaped locking block 1-30122 is provided with a wheel closing pressure plate 1-3014, and the wheel closing pressure plate 1-3014 is rotatably connected to the trapezoidal locking block 1-30121. One end of the wheel closing pressure plate 1-3014 is attached to the first structure 1-201. When the trapezoidal locking block 1-30121 moves downward, that is, when performing a contraction action, the wedge-shaped locking block 1-30122 is driven to drive the wheel closing pressure plate 1-3014 to rotate, so as to adjust the position of the first structure 1-201 and drive the first structure 1-201 to move downward, which is beneficial to the wheel closing process after the wheel is retracted.

[0133] Reference Fig.12 , Fig.12 This is a partial enlarged view of part B of the automatic folding wheel.

[0134] like Fig.12 As shown, in some embodiments, the two end faces of the second structure 1-203 are respectively provided with a second telescopic mechanism 1-2022, the second telescopic mechanism 1-2022 is a threaded hole, the second telescopic device 1-2021 is a second motor, and the second motor cooperates with the threaded hole through a flange screw to realize the folding or resetting of the rotating spoke 302.

[0135] A reset spring is disposed at one end of the second motor, and a second screw is disposed at the other end. The second screw is a flange screw, and the flange screw cooperates with the threaded hole to realize the folding or reset of the rotating spoke 302 .

[0136] In order to better achieve the stability between the hub structures 1 - 2 , a convex structure or a concave structure is provided on the end surface of the hub structure 1 - 2 , and the convex structure and the concave structure between adjacent hub structures match each other.

[0137] Further, such as Fig.13 As shown, the end surface of the hub structure 1-2 is provided with a rubber layer 1-7 to maintain the stability when adjacent hub structures 1-2 are docked.

[0138] Furthermore, in order to maintain the relative position between the hub structures 1-2, a groove is provided on the outer periphery of the hub structure 1-2, and the end face positions of the grooves of adjacent hub structures 1-2 correspond to each other, and a clamping ring 1-5 surrounding the outer periphery of the hub is provided in the groove, and the clamping ring 1-5 fixes the relative position of each hub structure 1-2; the clamping ring 1-5 is fixedly connected in the groove of each hub structure.

[0139] It is easy to understand that the clamping ring can be fixed in the groove by riveting with rivets 1-6, or any other physical fixing method, such as welding.

[0140] It should be noted that a second spring is provided at the rotational connection between the rotating spoke and the rotating shaft, and the second spring is used to drive the rotating spoke 1-302 to rotate in the direction of the telescopic spoke when the rotating spoke is folded.

[0141] In some embodiments, the rotating spoke 1-302 can be composed of three sections, each section is rotatably connected, one end is rotatably connected to the second structure 1-203, and the other end is rotatably connected to the telescopic spoke 1-301.

[0142] How the automatic folding wheels work:

[0143] During automatic folding, the second motor in the connecting structure 1-202 reverses, so that the flange screw of the connecting structure 1-202 is separated from the threaded hole in the second structure 1-203, and then the first motor works to drive the first screw to rotate, and the screw barrel moves upward. The rotating spoke 1-302 is conveniently rotated in the direction of the telescopic spoke 1-301 under the action of the second spring until the screw barrel moves upward to the highest point, completing the folding. Fig.14 Schematic diagram of the automatic folding wheel after folding.

[0144] During automatic resetting, the first motor works in the reverse direction to drive the first screw to rotate, the screw barrel moves downward, and then the trapezoidal locking block 1-30121 moves downward, the closed wheel pressure plate 1-3014 drives the first structure 1-201 to move downward, and the wedge-shaped locking block 1-30122 moves in the opposite direction to the center axis of the telescopic spoke 1-301 until the screw barrel moves downward to the lowest point. The wedge-shaped locking block 1-30122 locks the first section structure, and the second motor in the connecting structure 1-202 rotates forward to lock the second structure 1-203 to complete the resetting.

[0145] In this embodiment, an automatic folding wheel is provided, in which a wheel hub is split into a first structure 1-201, a second structure 1-203 and a connecting structure 1-202, and a first telescopic device 1-401 is used to control the telescopic spokes 1-301 to perform a telescopic action. At the same time, a second telescopic device 1-2021 is used to control the rotating spokes 1-302 to perform a rotation action, thereby driving the folding and resetting between the first structure 1-201 and the connecting structure 1-202 and between the second structure 1-203 and the connecting structure 1-202. When the wheel is folded, the present invention controls the second telescopic device 1-2021 to perform a telescopic action to provide a folding gap between the first structure 1-201, the second structure 1-203 and the connecting structure 1-202, and then controls the first telescopic device 1-401 to perform a telescopic action to complete the automatic retractable folding of the wheel hub, thereby improving the convenience of wheel folding. At the same time, when the wheel is reset, the reverse action is performed to quickly realize the reset and fixation of the first structure 1-201, the second structure 1-203 and the connecting structure 1-202, thereby enhancing the stability of the wheel after folding.

[0146] How the automatic folding bicycle works:

[0147] The energy supply battery of the automatic folding bicycle is connected to the first motor and the second motor through a wire to provide power for the automatic folding and automatic resetting of the automatic folding wheels. The control component of the automatic folding bicycle is used to send control instructions to the first motor and the second motor to drive the first motor and the second motor to perform corresponding actions, thereby realizing the automatic folding and automatic resetting of the automatic folding bicycle.

[0148] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic folding bicycle, comprising automatic folding wheels and a frame, wherein the frame comprises a front fork assembly, a rear fork assembly, an arm assembly, a handlebar assembly, a pedal assembly and a seat assembly, characterized in that: The frame also includes at least one electrically controlled rotating arm locking device; wherein: The electronically controlled rotating arm locking device is provided on at least one of the front fork assembly, the rear fork assembly, the arm assembly, the handlebar assembly or the pedal assembly, and is used to lock and fix the first end and the second end of the assembly when receiving a locking instruction, and to separate and fold the first end and the second end of the assembly when receiving a folding instruction; The electrically controlled rotating arm locking device comprises a first rotating arm and a second rotating arm which are rotatably connected, wherein the first rotating arm is provided with a first cavity, and the second rotating arm is provided with a second cavity; wherein: The first cavity is provided with a locking drive device and a first locking mechanism, the first locking mechanism includes a first rotating member and a second rotating member, and the locking drive device drives the first rotating member and the second rotating member to perform a rotation action; The second rotating arm is fixedly provided with a third rotating member, and the third rotating member cooperates with the rotating action of the first rotating member to drive the second rotating arm to rotate; The second cavity is provided with a second locking mechanism, which cooperates with the second rotating member to lock the first rotating arm and the second rotating arm when the electric-controlled rotating arm locking device is docked, and to unlock the first rotating arm and the second rotating arm when the electric-controlled rotating arm locking device is folded.

2. The automatic folding bicycle according to claim 1, characterized in that: The assembly includes an arm assembly, the first end is the front end of the arm, the second end is the rear end of the arm, the electrically controlled rotating arm locking device connects the front end of the arm and the rear end of the arm so that the front end of the arm and the rear end of the arm perform a rotating action; the frame also includes a first frame connecting rod, the seat assembly is rotatably connected to the rear end of the arm, the first end of the first frame connecting rod is rotatably connected to the front end of the arm, and the second end of the first frame connecting rod is rotatably connected to the seat assembly.

3. The automatic folding bicycle according to claim 1, characterized in that: The component includes a front fork component, the first end is the lower end of the front fork, the second end is the upper end of the front fork, and the electronically controlled rotating arm locking device connects the lower end of the front fork and the upper end of the front fork so that the lower end of the front fork and the upper end of the front fork perform a rotating action.

4. The automatic folding bicycle according to claim 3, characterized in that: The assembly includes a rear fork assembly, the first end is a pedal end, the second end is a rear wheel end, and the electrically controlled rotating arm locking device connects the pedal end and the rear wheel end so that the pedal end and the rear wheel end perform a rotational action; the frame also includes a second frame connecting rod, the first end of the second frame connecting rod is rotatably connected to the seat assembly, and the second end of the second frame connecting rod is rotatably connected to the rear wheel end.

5. The automatic folding bicycle according to claim 1, characterized in that: The frame also includes a front fender assembly, which includes: A fender screw, the fender screw being rotatably connected to the front fork assembly; A front fender, wherein the front fender is provided with fender threads, and the fender threads are threadedly connected to the fender screw; A fender driving device, the fender driving device is connected to the fender screw and drives the fender screw to rotate; A front fender link, wherein a first end of the front fender link is rotatably connected to the front fork assembly, and a second end of the fender link is rotatably connected to the front fender.

6. The automatic folding bicycle according to claim 4, characterized in that: The frame also includes a rear fender assembly, which includes: a first rear fender, wherein a first end of the first rear fender is rotatably connected to the pedal end; a second rear fender, wherein a first end of the second rear fender is connected to a second end of the first rear fender; a first rear fender link, wherein a first end of the first rear fender link is rotatably connected to a second end of the first rear fender and a first end of the second rear fender, and a second end of the first rear fender link is rotatably connected to the seat assembly; A second rear fender link, wherein the first end of the second rear fender link is rotatably connected to the second end of the second rear fender, and the second end of the second rear fender link is rotatably connected to the rear wheel end.

7. The automatic folding bicycle according to claim 1, characterized in that: The frame further comprises a first chain stopper wheel and a second chain stopper wheel, the assembly comprises a pedal assembly, and the pedal assembly comprises a first crank, a second crank and a pedal; wherein: The first end of the first crank is connected to the axle of the first chain stopper wheel, the first end of the second crank is connected to the second end of the first crank, and the pedal is connected to the second end of the second crank; The electrically controlled rotating arm locking device connects the first crank and the second crank so that the first crank and the second crank perform a rotating action; The frame further includes a chain, and the first chain stopper wheel and the second chain stopper wheel are respectively provided with at least one fixing point, and the chain is fixed to the first chain stopper wheel and the second chain stopper wheel through the fixing points.

8. The automatic folding bicycle according to claim 1, characterized in that: The component includes a handlebar assembly, the first end is the left end of the handlebar, and the second end is the right end of the handlebar. The handlebar assembly also includes a connecting member, the first end of the connecting member is fixed to the front fork assembly, and the other end of the connecting end is provided with a first extension rod and a second extension rod, the first extension rod and the second extension rod are respectively connected to the left end of the handlebar and the right end of the handlebar through an electrically controlled rotation locking device, so that the left end of the handlebar and the right end of the handlebar can respectively perform a rotation action.

9. The automatic folding bicycle according to claim 1, characterized in that: The wheel is an automatic folding wheel, comprising a tire, a hub, a plurality of spokes and a rotating shaft, wherein the tire is arranged on the periphery of the hub, the rotating shaft is fixedly arranged on the axis of the hub through a plurality of spokes, the hub comprises a plurality of hub structures connected end to end, the spokes comprise telescopic spokes and rotating spokes, the hub structure comprises a first structure, a second structure and a connecting structure, and the connecting structure is arranged between adjacent first structures and second structures; wherein: The first end of the telescopic spoke is fixed between adjacent first structures, the second end of the telescopic spoke is fixed to the rotating shaft, the rotating shaft is provided with a first telescopic device, the second end of the telescopic spoke cooperates with the first telescopic device to drive the telescopic spoke to perform a telescopic action; The first end of the rotating spoke is fixed to the second structure, the second end of the rotating spoke is rotatably connected to the rotating shaft, and the two ends of the connecting structure are provided with second telescopic devices, and the second telescopic devices cooperate with the first structure or the second structure to lock or unlock the connecting structure and the first structure or the second structure; The rotating spokes include a plurality of spoke segments that are rotatably connected. When the connecting structure is unlocked from the first structure or the second structure, the first telescopic device drives the telescopic spokes to extend, and each of the spoke segments rotates around the rotating connection in a first direction to fold the rotating spokes. When the connecting structure is locked from the first structure or the second structure, the first telescopic device drives the telescopic spokes to shorten, and each of the spoke segments rotates around the rotating connection in a second direction to reset the rotating spokes.

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