Electric training wheel for motorcycle

Abstract

The present application discloses an electric auxiliary wheel for a motorcycle, comprising: a fixed assembly fixedly connected to the rear wheel fork of the motorcycle; a power assembly embedded in the interior of the fixed assembly, comprising a motor and a threaded screw connected to the motor, the outer periphery of the threaded screw being sleeved with a threaded slider matching the motor; a connecting rod assembly rotatably arranged on the fixed assembly, comprising an upper connecting rod and a lower connecting rod, the end of the active pulling arm away from the lower connecting rod being hinged to the threaded slider, and the ends of the upper connecting rod and the lower connecting rod away from the fixed assembly being hinged to the auxiliary wheel housing; an auxiliary wheel assembly comprising auxiliary wheels, the auxiliary wheels being used to support the left and right sides of the rear wheel of the motorcycle; a power control assembly being electrically connected to the entire motorcycle circuit, for receiving control signals from the motorcycle and controlling the motor operation. The auxiliary wheels arranged in the above manner can automatically support the entire vehicle on the left and right sides, preventing the vehicle from tipping over and causing damage to people and the vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of motorcycles, and in particular to an electric training wheel for motorcycles. Background Art

[0002] As people's living standards improve, long-distance motorcycle rides have become a common pursuit for most riders, and large-displacement SUVs are highly favored by riders. Compared to four-wheeled vehicles, two-wheeled motorcycles generally have inferior safety, stability, and braking performance. In addition, to ensure sufficient power and ground clearance, large-displacement SUVs are designed with a particularly high weight and seat height. When traveling at low speeds, due to only two wheels, it is difficult for shorter and less powerful riders to maintain balance. Furthermore, when driving a motorcycle, it is generally difficult to place the feet on the ground, which often leads to tipping over and falling, posing numerous safety risks to the entire ride.

[0003] At present, domestic motorcycle auxiliary support technology is immature and relies entirely on the rider's own skills to control the vehicle. The entire vehicle lacks proactive and intelligent defense support tools.

[0004] Therefore, in response to the above problems, how to design an electric training wheel that can automatically support the left and right sides of the vehicle and automatically intervene in adverse working conditions according to the driving conditions of the vehicle to adjust the vehicle to safe driving is a technical problem that technical personnel in this field need to solve. Summary of the Invention

[0005] The purpose of this application is to provide an electric training wheel for a motorcycle, which can automatically support the entire vehicle on the left and right to prevent the vehicle from tipping over to the left or right and causing damage to people and the vehicle. It can also automatically intervene in adverse working conditions according to the driving condition of the entire motorcycle to adjust the vehicle for safe driving.

[0006] To achieve the above objectives, the present application provides an electric training wheel for a motorcycle, which is installed on the left and right sides of the rear wheel of the motorcycle, comprising:

[0007] A fixing assembly, fixedly connected to the rear wheel fork of the motorcycle;

[0008] A power assembly is embedded in the fixed assembly, including a motor and a threaded screw rotatably connected to the motor, a threaded slider is sleeved on the outer periphery of the threaded screw, and a guide rail is provided on the threaded slider in line with the axial direction of the threaded screw, the guide rail is fixed in the fixed assembly, and the guide rail is used to limit the threaded slider to move only in its axial direction;

[0009] a connecting rod assembly rotatably disposed on the fixed assembly, comprising an upper connecting rod and a lower connecting rod, wherein the upper connecting rod and the lower connecting rod are both hingedly connected to the fixed assembly, an active pulling arm is hingedly connected to the middle portion of the lower connecting rod, an end of the active pulling arm facing away from the lower connecting rod is hingedly connected to the threaded slider, and ends of the upper connecting rod and the lower connecting rod facing away from the fixed assembly are both hingedly connected to the auxiliary wheel housing, and the upper connecting rod, the lower connecting rod, the fixed assembly, and the auxiliary wheel housing form a parallelogram connecting rod structure;

[0010] an auxiliary wheel assembly, comprising auxiliary wheels rotatably mounted on the auxiliary wheel housing, the auxiliary wheels being configured to contact the ground and support the left and right sides of the rear wheel of the motorcycle;

[0011] The power control component is electrically connected to the entire circuit of the motorcycle and is used to receive a control signal from the motorcycle and control the action of the motor.

[0012] Preferably, the power assembly further includes:

[0013] A driving pulley is provided on the actuating end of the motor and rotates accordingly;

[0014] A driven pulley is fixed on the threaded screw and connected to the driving pulley via a transmission belt;

[0015] The bearings are located at both ends of the threaded screw and are fixed on the fixing assembly. The threaded screw is rotatably arranged on the fixing assembly through the two bearings.

[0016] Preferably, the fixing assembly comprises:

[0017] a lower fixed shell, wherein the power assembly is embedded in the lower fixed shell;

[0018] a back plate bracket, provided on the end surface of the lower fixing shell facing the motorcycle, and used for being fixedly connected to the motorcycle;

[0019] The upper fixed shell covers the lower fixed shell, and a sealing ring is provided at the junction of the upper fixed shell and the lower fixed shell.

[0020] Preferably, the upper connecting rod is hinged to the fixed assembly through a first spring pin, and the lower connecting rod is hinged to the auxiliary wheel housing through a second spring pin. A tension spring is provided between the first spring pin and the second spring pin, and the tension spring is used to eliminate the installation gap of the parallelogram connecting rod structure.

[0021] Preferably, guide rail fixing blocks are provided at both ends of the guide rail, the guide rail fixing blocks fix the guide rail axially, and the guide rail fixing blocks are fixed on the fixing assembly.

[0022] Preferably, the auxiliary wheel set further includes:

[0023] A mounting arm, used for rotatably mounting the auxiliary wheel;

[0024] a sliding arm, sleeved on the outer periphery of the end of the mounting arm away from the auxiliary wheel, and the end of the sliding arm away from the mounting arm extends into the auxiliary wheel housing and slides up and down in the auxiliary wheel housing;

[0025] The return spring is located in the auxiliary wheel housing. The return spring is vertically arranged, and the upper end of the return spring abuts against the inner wall of the auxiliary wheel housing, and the lower end abuts against the end surface of the sliding arm.

[0026] Preferably, a switch pin is provided above the sliding arm, a limit switch is provided above the switch pin and inside the auxiliary wheel housing, the limit pin corresponds to the limit switch, and the limit switch is electrically connected to the power control component.

[0027] Preferably, a hub bearing is provided in the middle of the auxiliary wheel, the auxiliary wheel is fixed to the hub bearing by interference fit, and the hub bearing is fixed to the mounting arm by interference fit.

[0028] Preferably, a limit pin is provided on the end surface of the threaded slider facing the upper fixed shell, and an upper limit piece and a lower limit piece are provided on the end surface of the upper fixed shell facing the threaded slider, the limit pin moves between the upper limit piece and the lower limit piece, and the upper limit piece and the lower limit piece are both electrically connected to the power control component for limiting the upper / lower limit position of the threaded slider.

[0029] Preferably, the power control component includes an integrated circuit board and an overload protection relay, which are used to receive the control signal sent by the motorcycle, analyze the signal, and control the forward / reverse rotation and movement / stop of the motor.

[0030] With respect to the above-mentioned background technology, the present application discloses an electric auxiliary wheel for a motorcycle, which is installed on the left and right sides of the rear wheel of the motorcycle to assist in supporting the motorcycle. The electric auxiliary wheel has a folded state and a working state, and the conversion between the folded state and the working state is specifically achieved through a power assembly and a connecting rod assembly.

[0031] Specifically, the motor in the power assembly drives the threaded slider up and down, which is in turn connected to an active pull arm. Driven by the slider, the active pull arm moves up and down synchronously, driving the lower and upper connecting rods to rotate. The rotation of the upper and lower connecting rods causes the synchronous movement of the auxiliary wheel housing, causing the parallelogram connecting rod structure to retract upward or deploy downward, thereby controlling the up and down movement of the auxiliary wheel assembly. When the auxiliary wheel assembly moves downward, it stops after the left and right auxiliary wheels contact the ground, forming a wide auxiliary support length on the ground. At this time, the front and rear wheels and the left and right auxiliary wheels touch the ground simultaneously, bearing the entire weight of the vehicle, while the left and right auxiliary wheels provide support, preventing the motorcycle from tipping over.

[0032] Of course, when the motor controls the auxiliary wheel assembly to be retracted upwards, in the retracted state, the height of the electric auxiliary wheel and the two horizontal forks of the vehicle remain consistent, which does not affect the normal driving of the vehicle.

[0033] Furthermore, the electric training wheel connects to the motorcycle's electrical circuit via the power control unit's outlet plug. The motorcycle's sensors detect the vehicle's power supply, speed, tilt angle, and other signals, and the power control unit automatically controls the motor's operation. The control terminal can also be integrated with the motorcycle's brake handle for manual control of the electric training wheel. The electric training wheel, configured in this manner, automatically supports the motorcycle left and right, preventing damage to both riders and the vehicle if it were to tip over. It also automatically intervenes in adverse conditions based on the motorcycle's driving conditions to ensure safe operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0035] Figure 1 This is a schematic diagram of the internal structure of the electric training wheel for a motorcycle provided in an embodiment of the present application;

[0036] Figure 2 This is a schematic diagram of the three-dimensional structure of the electric training wheel for a motorcycle provided in an embodiment of the present application;

[0037] Figure 3 A right side view of the electric training wheel for a motorcycle provided in an embodiment of the present application;

[0038] Figure 4 A front view of an electric training wheel for a motorcycle provided in an embodiment of the present application;

[0039] Figure 5 This is a schematic diagram of the upper and lower limit members of the electric training wheel for a motorcycle provided in an embodiment of the present application;

[0040] Figure 6 This is a schematic diagram of the parallelogram connecting rod structure of the electric auxiliary wheel for a motorcycle provided in an embodiment of the present application;

[0041] Figure 7 This is a structural schematic diagram of the upper limit position of the folded state and the lower limit position of the working state of the electric training wheel for motorcycle provided in an embodiment of the present application when installed on the motorcycle.

[0042] In the figure: 1, backplane bracket 2, lower fixed shell 3, upper fixed shell 4, outlet plug 5, auxiliary wheel housing 6, upper limit member 7, limit pin 8, lower limit member 9, upper connecting rod 10, active pulling arm 11, lower connecting rod 12, tension spring 13, mounting arm 14, active pulley 15, transmission belt 16, motor 17, power control assembly 18, threaded slider 19, bearing 20, guide rail fixing block 21, limit switch 22, return spring 23, switch ejector pin 24, sliding arm 25, wheel hub bearing 26, auxiliary wheel 27, threaded screw 28, driven pulley 29, guide rail 30, first spring hanging pin 31, second spring hanging pin 32, sealing ring. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0045] It should be noted that the directions or positional relationships indicated by "upper," "lower," "front," and "back" in this embodiment are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] like Figures 1 to 6As shown, in this embodiment, an electric auxiliary wheel for a motorcycle is provided, which is installed on the left and right sides of the rear wheel of the motorcycle to assist in supporting the motorcycle. The electric auxiliary wheel has a retracted state and a working state, and the conversion between the retracted state and the working state is specifically achieved through a power assembly and a connecting rod assembly.

[0047] Specifically, the electric training wheel includes a fixing assembly, a power assembly, a connecting rod assembly, a training wheel assembly, and a power control assembly 17. The fixing assembly is used to fix the motorcycle's rear wheel fork to secure the entire electric training wheel. The power assembly is embedded in the fixing assembly and includes a motor 16 and a threaded screw 27 rotatably connected to the motor 16. The rotation of the motor 16 can drive the threaded screw 27 to rotate. In addition, a matching threaded slider 18 is provided on the threaded screw 27. By rotating the threaded screw 27, the threaded slider 18 is driven to reciprocate up and down.

[0048] During the up and down movement of the threaded slider 18, in order to prevent the threaded slider 18 from rotating, a guide rail 29 is provided on the threaded slider 18 and is consistent with the axial direction of the threaded screw 27. The guide rail 29 is fixed in the fixed assembly. The guide rail 29 plays the role of guiding the threaded slider 18 and limiting the threaded slider 18 to move only in the axial direction.

[0049] In addition, the connecting rod assembly is rotatably arranged on the fixed assembly. Specifically, the connecting rod assembly includes an upper connecting rod 9 and a lower connecting rod 11. One end of the upper connecting rod 9 and the lower connecting rod 11 are hinged to the fixed assembly, and an active pulling arm 10 is provided in the middle of the lower connecting rod 11. It should be noted that the end of the active pulling arm 10 facing away from the lower connecting rod is hinged to the threaded slider 18. Of course, the active pulling arm 10 here can also be provided on the upper connecting rod 9. There is no specific restriction here, and all belong to the protection scope of this application; in this embodiment, the ends of the upper connecting rod 9 and the lower connecting rod 11 facing away from the fixed assembly are hinged to the auxiliary wheel housing 5, and the upper connecting rod 9, the lower connecting rod 11, the fixed assembly, and the auxiliary wheel housing 5 form a parallelogram connecting rod structure.

[0050] It should be noted that, in the above embodiment, the four corners of the parallelogram linkage structure are hinged, which can ensure stability during the rotation of the parallelogram.

[0051] On the basis of the above embodiment, an auxiliary wheel 26 is provided on the auxiliary wheel housing 5 . The auxiliary wheel 26 is used to contact the ground and support the left and right sides of the rear wheel of the motorcycle.

[0052] In addition, the above-mentioned electric training wheel is also provided with a power control component 17, which is electrically connected to the motorcycle's entire vehicle circuit and is used to receive control signals from the motorcycle and control the operation of the motor 16. Specifically, the output plug 4 of the power control component 17 is connected to the motorcycle's entire vehicle circuit. The motorcycle's sensors detect signals such as the vehicle's power supply, vehicle speed, and vehicle tilt angle, and the power control component 17 then automatically controls the operation of the motor 16. At the same time, the control end can be integrated into the motorcycle's brake handle for control, thereby realizing manual control of the electric training wheel.

[0053] As can be seen from the above embodiment, the motor 16 in the power assembly of the present application drives the threaded slider 18 up and down, and the threaded slider 18 is connected to the active pull arm 10. Driven by the threaded slider 18, the active pull arm 10 moves up and down synchronously, and drives the lower connecting rod 11 and the upper connecting rod 9 to rotate. The rotation of the upper connecting rod 9 and the lower connecting rod 11 causes the synchronous movement of the auxiliary wheel housing 5, causing the parallelogram connecting rod structure to retract upward or deploy downward, thereby controlling the up and down movement of the auxiliary wheel assembly. When the auxiliary wheel assembly moves downward, it stops after the left and right auxiliary wheels 26 contact the ground, forming a wide auxiliary support length on the ground. At this time, the front and rear wheels and the left and right auxiliary wheels 26 touch the ground simultaneously, and the front and rear wheels bear the entire weight of the vehicle, while the left and right auxiliary wheels 26 provide support to prevent the motorcycle from tipping over.

[0054] Of course, if Figure 7 As shown, when the motor 16 controls the training wheel assembly to retract upward, the height of the electric training wheel and the forks remain consistent, without affecting normal vehicle operation. The electric training wheels configured in this manner automatically support the entire motorcycle left and right, preventing the motorcycle from tipping over and causing damage to both passengers and the motorcycle. Furthermore, the electric training wheels can automatically intervene in adverse operating conditions based on the motorcycle's driving conditions to ensure safe operation.

[0055] It should be noted that the above-mentioned power assembly also includes a driving pulley 14, a driven pulley 28 and a bearing 19. The driving pulley 14 is arranged on the action end of the motor 16, and rotates accordingly to drive the driven pulley to rotate. The driven pulley 28 is fixed on the threaded screw 27 and is connected to the driving pulley 14 through a transmission belt 15. The rotation of the driving pulley 14 drives the driven pulley 28 and the threaded screw 27 to rotate; of course, the threaded screw 27 is rotatably set on the fixed assembly through two bearings 19, which will not be described in detail here.

[0056] In addition, the above-mentioned fixing assembly also includes a lower fixing shell 2, a backplate bracket 1 and an upper fixing shell 3. The power assembly shell is embedded in the lower fixing shell 2 and is fixedly connected to the motorcycle flat fork through the backplate bracket 1 arranged on the end face of the lower fixing shell 2. The upper fixing shell 3 covers the lower fixing shell 2, and a sealing ring 32 is arranged at the junction of the upper fixing shell 3 and the lower fixing shell 2; it should be noted that the specific structure of the fixing assembly can be set in a variety of ways, not limited to the setting method provided in this embodiment, as long as it is ensured that the power assembly can be fixedly connected to the motorcycle through the fixing assembly. There is no restriction here, and all belong to the protection scope of this application.

[0057] In order to eliminate the installation gap of the parallelogram linkage structure and ensure the stability of the parallelogram linkage structure during rotation, in this embodiment, the upper link 9 is hinged to the above-mentioned fixed assembly through a first spring pin 30, and the lower link 11 is hinged to the auxiliary wheel housing 5 through a second spring pin 31. A tension spring 12 is provided between the first spring pin 30 and the second spring pin 31. The tension spring 12 eliminates the installation gap of the parallelogram linkage structure and ensures the stability of the parallelogram linkage structure.

[0058] In addition, guide rail fixing blocks 20 are provided at both ends of the guide rail 29, and the guide rail 29 is axially fixed by the guide rail fixing blocks 20 to prevent the guide rail 29 from moving up and down. Of course, there are many ways to fix the guide rail 29 on the fixing component, which is not limited to this method and will not be described in detail here.

[0059] In this embodiment, the auxiliary wheel assembly further includes a mounting arm 13, a sliding arm 24, and a return spring 22. The mounting arm 13 is used to connect to the auxiliary wheel 26. The sliding arm is mounted on the outer periphery of the end of the mounting arm 13 facing away from the auxiliary wheel 26. The end of the sliding arm 24 facing away from the mounting arm 13 extends into the auxiliary wheel housing 5 and slides up and down within the auxiliary wheel housing 5. It should be noted that the mounting arm 13 and the sliding arm 24 are fitted together by a clearance between the shaft holes and secured by bolts. If necessary, the rotation angle of the mounting arm 13 can be adjusted to adjust the direction of the auxiliary wheel 26. The return spring 22 is located within the auxiliary wheel housing 5 and is arranged vertically. The upper end of the return spring 22 abuts against the inner wall of the auxiliary wheel housing 5, and the lower end abuts against the end face of the sliding arm, thereby confining the sliding arm to the lower portion of the auxiliary wheel housing 5.

[0060] Of course, a hub bearing 25 can be provided in the middle of the auxiliary wheel 26 here, and the auxiliary wheel 26 and the hub bearing 25 are fixed by an interference fit, and the hub bearing 25 and the mounting arm 13 are fixed by an interference fit. Of course, the specific arrangement of the auxiliary wheel 26 and the hub bearing 25 here can be various, and no specific restrictions are made. It can be set according to actual needs.

[0061] It should be noted that a switch pin 23 is provided above the slide arm 24, and a limit switch 21 is provided above the switch pin 23 and inside the auxiliary wheel housing 5. The limit pin corresponds to the limit switch 21, and the limit switch 21 is electrically connected to the power control component 17; specifically, when the auxiliary wheel 26 contacts the ground, the auxiliary wheel 26 and the slide arm 24 will move upward and compress the return spring 22, and the limit pin will trigger the limit switch 21 at the extreme position, so that the actual road conditions when the motorcycle is traveling can be understood, and the auxiliary wheel 26 can be limited to the lower position when working according to the actual road conditions.

[0062] In this embodiment, a limit pin 7 is provided on the end surface of the threaded slider 18 facing the upper fixed shell 3, and an upper limit member 6 and a lower limit member 8 are provided on the end surface of the upper fixed shell 3 facing the threaded slider 18. The limit pin 7 moves between the upper limit member 6 and the lower limit member 8, and the upper limit member 6 and the lower limit member 8 are both electrically connected to the power control component 17, and are used to limit the upper / lower position of the threaded slider 18; the upper limit member 6 and the lower limit member 8 here can be components such as sensors to ensure that the limit pin 7 can trigger the limit member when moving up and down, and can limit the upper / lower position of the electric auxiliary wheel. Of course, the limit information can be transmitted to the power control component 17.

[0063] It should be noted that the power control component 17 includes an integrated circuit board and an overload protection relay, which is used to receive control signals from the motorcycle, analyze the signals, and control the forward / reverse rotation and movement / stop of the motor 16; specifically, the outlet plug 4 of the power control component 17 is connected to the entire motorcycle circuit, and the motorcycle sensor understands the power supply, speed signal, vehicle tilt angle and other signals of the entire vehicle, and then the power control component 17 automatically controls the movement of the motor 16. At the same time, the control end can be integrated into the motorcycle brake handle for control, so that manual control of the electric training wheel can be realized.

[0064] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0065] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above examples is only intended to help understand the method and core ideas of this application. It should be noted that for those skilled in the art, without departing from the principles of this application, various improvements and modifications can be made to this application, and such improvements and modifications also fall within the scope of protection of the claims of this application.

Claims

1. An electric auxiliary wheel for a motorcycle, which is installed on the left and right sides of the rear wheel of the motorcycle, characterized in that: include: A fixing assembly, fixedly connected to the rear wheel fork of the motorcycle; A power assembly is embedded in the fixed assembly, including a motor and a threaded screw rotatably connected to the motor, a threaded slider is sleeved on the outer periphery of the threaded screw, and a guide rail is provided on the threaded slider in line with the axial direction of the threaded screw, the guide rail is fixed in the fixed assembly, and the guide rail is used to limit the threaded slider to move only in its axial direction; a connecting rod assembly rotatably disposed on the fixed assembly, comprising an upper connecting rod and a lower connecting rod, wherein the upper connecting rod and the lower connecting rod are both hingedly connected to the fixed assembly, an active pulling arm is hingedly connected to the middle portion of the lower connecting rod, an end of the active pulling arm facing away from the lower connecting rod is hingedly connected to the threaded slider, and ends of the upper connecting rod and the lower connecting rod facing away from the fixed assembly are both hingedly connected to the auxiliary wheel housing, and the upper connecting rod, the lower connecting rod, the fixed assembly, and the auxiliary wheel housing form a parallelogram connecting rod structure; An auxiliary wheel assembly, comprising auxiliary wheels rotatably mounted on the auxiliary wheel housing, the auxiliary wheels being configured to contact the ground and support the left and right sides of the rear wheel of the motorcycle; A power control component is electrically connected to the entire circuit of the motorcycle and is used to receive a control signal from the motorcycle and control the operation of the motor; The auxiliary wheel set further includes: A mounting arm, used for rotatably mounting the auxiliary wheel; a sliding arm, sleeved on the outer periphery of the end of the mounting arm away from the auxiliary wheel, and the end of the sliding arm away from the mounting arm extends into the auxiliary wheel housing and slides up and down in the auxiliary wheel housing; a return spring located in the auxiliary wheel housing, the return spring being vertically arranged, with the upper end of the return spring abutting against the inner wall of the auxiliary wheel housing and the lower end abutting against the end surface of the sliding arm; A switch pin is provided above the sliding arm, a limit switch is provided above the switch pin and inside the auxiliary wheel housing, the switch pin corresponds to the limit switch, and the limit switch is electrically connected to the power control component.

2. The electric training wheel for motorcycle according to claim 1, characterized in that: The power assembly further comprises: A driving pulley is provided on the actuating end of the motor and rotates accordingly; A driven pulley is fixed on the threaded screw and connected to the driving pulley via a transmission belt; The bearings are located at both ends of the threaded screw and are fixed on the fixing assembly. The threaded screw is rotatably arranged on the fixing assembly through the two bearings.

3. The electric training wheel for motorcycle according to claim 2, characterized in that: The fixing assembly includes: a lower fixed shell, wherein the power assembly is embedded in the lower fixed shell; a back plate bracket, provided on the end surface of the lower fixing shell facing the motorcycle, and used for being fixedly connected to the motorcycle; The upper fixed shell covers the lower fixed shell, and a sealing ring is provided at the junction of the upper fixed shell and the lower fixed shell.

4. The electric training wheel for motorcycle according to claim 1, characterized in that: The upper connecting rod is hinged to the fixed assembly via a first spring hook pin, and the lower connecting rod is hinged to the auxiliary wheel housing via a second spring hook pin. A tension spring is provided between the first spring hook pin and the second spring hook pin, and the tension spring is used to eliminate the installation gap of the parallelogram connecting rod structure.

5. The electric training wheel for motorcycle according to claim 1, characterized in that: Guide rail fixing blocks are provided at both ends of the guide rail, and the guide rail fixing blocks fix the guide rail axially, and the guide rail fixing blocks are fixed on the fixing assembly.

6. The electric training wheel for motorcycle according to claim 1, characterized in that: A hub bearing is provided in the middle of the auxiliary wheel, the auxiliary wheel and the hub bearing are fixed by interference fit, and the hub bearing and the mounting arm are fixed by interference fit.

7. The electric training wheel for motorcycle according to claim 3, characterized in that: A limit pin is provided on the end surface of the threaded slider facing the upper fixed shell, and an upper limit piece and a lower limit piece are provided on the end surface of the upper fixed shell facing the threaded slider. The limit pin moves between the upper limit piece and the lower limit piece, and the upper limit piece and the lower limit piece are both electrically connected to the power control component for limiting the upper / lower limit position of the threaded slider.

8. The electric training wheel for motorcycle according to claim 1, characterized in that: The power control component includes an integrated circuit board and an overload protection relay, which are used to receive the control signal sent by the motorcycle, analyze the signal, and control the forward / reverse rotation and movement / stop of the motor.

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