A concealed auxiliary wheel device for a motorcycle

Abstract

The utility model relates to the technical field of auxiliary wheel device, concretely is a kind of hidden auxiliary wheel device for motorcycle, including the mounting plate of being arranged in the lower rear of the motorcycle frame, the rear side of the mounting plate is symmetrically provided with auxiliary wheel module;The auxiliary wheel module includes motor drive module and auxiliary wheel support arm connected in order from inside to outside, the terminal of the auxiliary wheel support arm movably connects with gyro wheel.This hidden auxiliary wheel device is not only compact structure, occupies the small space of vehicle outer side position, even can not occupy vehicle side position space completely, and can provide more stable assistance to the travel of motorcycle, and effectively increase the service life of product.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary wheel device technology, and in particular to a concealed auxiliary wheel device for motorcycles. Background Technology

[0002] With improved living standards, motorcycles, once replaced by electric two-wheelers for commuting, are gaining popularity due to their superior range and attractive design. Riding motorcycles for daily commutes and long-distance travel is becoming increasingly fashionable. However, compared to electric scooters, motorcycles are typically larger and heavier, making them prone to tilting to one side or even tipping over when slowing down or stopping, posing a safety risk. Riders need to place one foot on the ground to maintain balance, which is particularly challenging for riders with less strength. Therefore, existing technologies used in electric two-wheelers are being attempted to be replicated in motorcycles, most commonly by installing training wheels on either side of the rear wheel to ensure balance.

[0003] Chinese invention patent CN117163192A discloses an auxiliary wheel device for motorcycles, including a fork clamping component symmetrically arranged on the left and right support arms of the rear fork; a folding arm assembly including an upper support arm and a lower support arm connected by a shaft, the rotating end of the upper support arm being movably connected to the fork clamping component, and a roller connected to the lower support arm; it also includes a lower support arm pull rod, one end of which is connected to a lower support arm shaft connecting column located inside the lower support arm, and the rotating end of the pull rod being movably connected to the fork clamping component; the folding drive mechanism includes a worm gear reducer and a transmission rack, the transmission rack including a transmission rod and a rack connected to each other, the transmission rod being connected to the rotating end of the upper support arm. This device is not only simple in structure and occupies little space, but also has high control precision, and can be well adapted to motorcycles, increasing auxiliary support during motorcycle operation, such as at slow speeds, when stopped, or when turning, effectively improving motorcycle driving safety and providing the driver with a better driving experience.

[0004] Because the aforementioned auxiliary wheel device is installed on both sides of the rear wheel, and the motor and transmission components are exposed on the outside, it inevitably occupies some space on both sides of the motorcycle. This structure is highly susceptible to the influence of the external environment, such as impacts with hard objects during riding, or getting wet in rainy or snowy weather, which in turn affects the service life of the auxiliary wheel device.

[0005] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to overcome the problems of the prior art and provide a hidden auxiliary wheel device for motorcycles. This device solves the technical problems that traditional auxiliary wheel devices, which are installed on both sides of the rear wheel, occupy side space, are susceptible to impact and rain / snow, and have a shortened service life.

[0007] The above objectives are achieved through the following technical solutions: A concealed auxiliary wheel device for a motorcycle includes a mounting plate disposed at the rear lower part of the motorcycle frame, and auxiliary wheel modules are symmetrically arranged on the rear side of the mounting plate; the auxiliary wheel module includes a motor drive module and an auxiliary wheel support arm connected sequentially from the inside to the outside, and a roller is movably connected to the end of the auxiliary wheel support arm.

[0008] Furthermore, the motor drive module includes a motor and a reduction assembly connected by transmission. The reduction assembly includes a reduction housing and a cover that can be interlocked. The gear shaft of the motor extends into the reduction housing. A rotating shaft parallel to the gear shaft is provided inside the reduction housing. A first gear and a second gear are sleeved on the rotating shaft. The first gear meshes with the gear shaft, and the second gear meshes with a third gear. The third gear is sleeved on the inner end of the transmission shaft. The outer end of the transmission shaft passes through a transmission shaft hole opened in the cover and is connected to the auxiliary wheel support arm.

[0009] Furthermore, the outer diameter of the first gear is greater than the outer diameter of the third gear, the outer diameter of the third gear is greater than the outer diameter of the gear shaft, and the outer diameter of the gear shaft is greater than the outer diameter of the second gear; the tooth pitch of the gear shaft is equal to the tooth pitch of the first gear, the tooth pitch of the second gear is equal to the tooth pitch of the third gear, and the tooth pitch of the first gear is less than the tooth pitch of the second gear.

[0010] Furthermore, the motor is a worm gear motor.

[0011] Furthermore, the inner wall of the rotating end of the auxiliary wheel support arm is provided with a groove for the limiting block to be inserted. The limiting block includes an inserting part and an outwardly protruding stop arm. The outer end of the drive shaft passes through the inserting part and is connected to the auxiliary wheel support arm by screws.

[0012] Furthermore, the outer wall of the cover is provided with a T-shaped protrusion, and the drive shaft hole passes through the axial center of the T-shaped protrusion; a first stop and a second stop are symmetrically arranged on both sides of the drive shaft hole, and the bottom side of the first stop or the second stop can abut against the stop arm.

[0013] Furthermore, both the first stop and the second stop are fan-shaped, and the bottom edge of the first stop and the bottom edge of the second stop form an arc-shaped path of the stop arm.

[0014] Furthermore, a mounting plate fixing block is provided on the outer wall of the deceleration box body for connecting it to the mounting plate by screws.

[0015] Furthermore, the two auxiliary wheel arms are arranged in a figure-eight shape.

[0016] Furthermore, the distance between the two rollers is no greater than the width of the motorcycle body.

[0017] This invention provides a concealed auxiliary wheel device for motorcycles. By integrating symmetrically arranged auxiliary wheel modules into a mounting plate at the rear lower part of the motorcycle frame, the auxiliary wheel device is protected by the vehicle's inherent concealed space. Furthermore, the motor drive module and auxiliary wheel support arm, connected sequentially from the inside out, further protect the core drive component, the motor, placing it in a safer position unaffected by external obstacles or weather conditions. This concealed auxiliary wheel device is not only compact in structure and occupies little space on the outer side of the vehicle (or even none at all), but it also provides more stable assistance for motorcycle riding and effectively increases the product's lifespan. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a concealed auxiliary wheel device for a motorcycle according to the present invention; Figure 2 This is a first-view structural diagram of the auxiliary wheel module in a concealed auxiliary wheel device for motorcycles according to the present invention. Figure 3 This is a second-view structural diagram of the auxiliary wheel module in a concealed auxiliary wheel device for motorcycles according to the present invention; Figure 4 This is an exploded view of the auxiliary wheel module in the concealed auxiliary wheel device for motorcycles described in this utility model; Figure 5 This is a schematic diagram showing the connection of the reduction gear assembly in a concealed auxiliary wheel device for motorcycles according to the present invention. Figure 6 This is a schematic diagram showing the connection between the auxiliary wheel support arm and the limiting block in a concealed auxiliary wheel device for motorcycles according to the present invention. Figure 7 This is a schematic diagram of the concealed auxiliary wheel device for motorcycles described in this utility model applied to the auxiliary wheel device.

[0019] Illustration markings: 1- Motorcycle frame; 2-Mounting plate; 3-Auxiliary wheel module, 301-Motor drive module, 302-Auxiliary wheel support arm, 303-Roller, 304-Motor, 305-Reduction assembly, 306-Reduction box body, 307-Cover, 308-Gear shaft, 309-Rotating shaft, 310-First gear, 311-Second gear, 312-Third gear, 313-Drive shaft, 314-Drive shaft hole, 315-T-shaped protrusion, 316-First stop block, 317-Second stop block, 318-Limit stop block, 319-Groove, 320-Embedding part, 321-Stop arm; 4-Motorcycle kickstand; 5-Motorcycle rear wheel; 6-Rear wheel control arm; 7- Mounting plate fixing block; 8-Connecting plate. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] like Figures 1-3 As shown, this solution provides a hidden auxiliary wheel device for motorcycles, including a mounting plate 2 disposed at the rear lower part of the motorcycle frame 1, and auxiliary wheel modules 3 symmetrically disposed on the rear side of the mounting plate 2; The auxiliary wheel module 3 includes a motor drive module 301 and an auxiliary wheel support arm 302 connected sequentially from the inside to the outside. A roller 303 is movably connected to the end of the auxiliary wheel support arm 302. The roller 303 is movably connected to the end of the auxiliary wheel support arm 302 via a pin, allowing the roller 303 to rotate freely relative to the auxiliary wheel support arm 302.

[0022] like Figure 7 As shown, in the field of motorcycles, the lower rear of the motorcycle frame 1 is not only adjacent to the motorcycle kickstand 4, but also has a hidden space between it and the motorcycle rear wheel 5. Above the hidden space is a rear wheel support arm 6 for supporting the motorcycle rear wheel 5. The rear wheel support arm 6 is connected to the upper rear of the motorcycle frame 1 to achieve movable support for the rear wheel.

[0023] This solution cleverly utilizes the hidden space of the motorcycle. By setting up this auxiliary wheel device in this hidden space, not only is its volume exposed to the outside of the vehicle greatly reduced, but also the characteristics of the motorcycle's own structure, such as the body shell, are used to reduce the interference of the external environment on this auxiliary wheel device, such as rain and snow.

[0024] This device is fixed to the lower rear of the motorcycle frame 1 via a mounting plate 2, and then provides directional assistance to the vehicle by symmetrically arranging two auxiliary wheel modules 3 on the rear side of the mounting plate 2. It should be noted that, depending on the size of different motorcycle frames, both ends of this mounting plate 2 can also be fixed to the lower rear of the motorcycle frame 1 via connecting plates 8.

[0025] The working principle is as follows: In the initial state, roller 303 is completely detached from the ground; When the motorcycle is traveling at low speed or parked, the motor drive module 301 will automatically drive the auxiliary wheel support arm 302 to rotate and lower the roller 303 at its end in a clockwise direction until the roller 303 contacts the ground. Combined with the front and rear wheels of the motorcycle, all four wheels are in contact with the ground at low speeds, which provides stability for the motorcycle and prevents it from tipping over when turning.

[0026] When the motorcycle needs to be locked, the motor drive module 301 will automatically drive the auxiliary wheel support arm 302 to drive the roller 303 at its end to continue to rotate and descend clockwise until the front or rear wheel of the motorcycle is lifted off the ground. Combined with the front and rear wheels of the motorcycle, all four wheels are in contact with the ground at slow speeds, thereby providing stability for the motorcycle traveling at slow speeds and preventing it from tipping over when turning.

[0027] When the motorcycle is stopped, the motor drive module 301 will automatically drive the auxiliary wheel support arm 302 to drive the roller at its end to continue to rotate clockwise and descend, until the front or rear wheel of the motorcycle is lifted off the ground, so that the motorcycle cannot be pushed, thereby achieving the purpose of parking and locking.

[0028] The aforementioned functions are all achieved by the motor drive module 301 driving the auxiliary wheel support arm 302 to rotate. The driving method can be achieved by monitoring vehicle speed, which is well-known technology in the field and will not be elaborated upon here. This solution focuses primarily on the structure of the auxiliary wheel protection device and elaborates on its structure based on this.

[0029] like Figures 2-5As shown, the motor drive module 301 includes a motor 304 and a reduction assembly 305 connected by transmission. The reduction assembly 305 includes a reduction housing 306 and a cover 307 that can be interlocked. The gear shaft 308 of the motor 304 extends into the reduction housing 306. A rotating shaft 309 parallel to the gear shaft 308 is provided inside the reduction housing 306. A first gear 310 and a second gear 311 are sleeved on the rotating shaft 309. The first gear 310 meshes with the gear shaft 308, and the second gear 311 meshes with a third gear 312. The third gear 312 is sleeved on the inner end of the transmission shaft 313. The outer end of the drive shaft 313 passes through the drive shaft hole 314 opened on the cover 307 and is connected to the auxiliary wheel support arm 302.

[0030] like Figure 5 As shown, it should be noted that in this embodiment, the outer diameter of the first gear 310 is larger than the outer diameter of the third gear 312, the outer diameter of the third gear 312 is larger than the outer diameter of the gear shaft 308, and the outer diameter of the gear shaft 308 is larger than the outer diameter of the second gear 311. The pitch of the gear shaft 308 is equal to the pitch of the first gear 310, the pitch of the second gear 311 is equal to the pitch of the third gear 312, and the pitch of the first gear 310 is less than the pitch of the second gear 311.

[0031] In this embodiment, the motor 304 is a worm gear motor. Specifically, a worm gear motor consists of a motor part and a worm gear reduction mechanism. It is a power device that integrates the worm gear reduction mechanism and the motor. Due to its unique transmission structure, it is widely used in low-speed, high-torque, and precision control scenarios. Its working principle is as follows: when the worm rotates, it meshes with the worm wheel through the helical teeth, converting the high-speed, low-torque motor power into low-speed, high-torque output. Since the helix angle of the worm is usually smaller than the friction angle, the transmission has a self-locking property, that is, the worm wheel cannot reverse the worm, similar to a screw that cannot reverse itself after being screwed into a nut. This embodiment uses the self-locking property of its transmission to achieve the retraction and extension control of the auxiliary wheel support arm.

[0032] like Figure 6 As shown, the inner wall of the rotating end of the auxiliary wheel support arm 302 is provided with a groove 319 for the limiting block 318 to be embedded. The limiting block 318 includes an embedding part 320 and an outwardly protruding stop arm 321. The outer end of the drive shaft 313 passes through the embedding part 320 and is connected to the auxiliary wheel support arm 302 by screws.

[0033] Specifically, such as Figure 4 and Figure 5As shown, the outer wall of the cover 307 is provided with a T-shaped protrusion 315, and the drive shaft hole 314 passes through the axial center of the T-shaped protrusion 315; a first stop 316 and a second stop 317 are symmetrically arranged on both sides of the drive shaft hole 314, and the bottom side of the first stop 316 or the second stop 317 can abut against the stop arm 321.

[0034] Specifically, in this embodiment, the first stop 316 or the second stop 317, which are compactly arranged on both sides of the lower part of the T-shaped protrusion 315, serve as the rotation blocking components of the auxiliary wheel support arm 302. By limiting the rotation angle of the auxiliary wheel support arm 302, the height adjustment of the roller 303 can be better realized.

[0035] In this embodiment, the limit of the roller 303's rise is the state when the stop arm 321 on the auxiliary wheel support arm 302 contacts the bottom of the second stop block 317; In this embodiment, the limit of the roller 303's descent is the state when the stop arm 321 on the auxiliary wheel support arm 302 contacts the bottom of the first stop block 316.

[0036] Both the first stop block 316 and the second stop block 317 are fan-shaped, and the bottom edge of the first stop block 316 and the bottom edge of the second stop block 317 form the arc-shaped path of the stop arm 321.

[0037] As an optimization of this solution, a mounting plate fixing block 7 is provided on the outer side wall of the deceleration box 306, which is used to connect it to the mounting plate 2 by screws, thereby achieving the purpose of fixing the auxiliary wheel module 3 to the mounting plate 2.

[0038] As an optimization of the auxiliary wheel support arm 302 in this embodiment, the two auxiliary wheel support arms 302 are arranged in a figure-eight shape. This arrangement increases the distance between the two rollers 303 located at the ends of the auxiliary wheel support arms 302, thereby providing stable support for the motorcycle like a motorcycle kickstand and achieving the purpose of safety assistance.

[0039] Furthermore, the distance between the two rollers 303 is no greater than the width of the motorcycle body. This limitation ensures that the auxiliary wheel device will not be interfered with by objects in the space outside the motorcycle body, thereby further improving driving safety.

[0040] The above description is only for illustrating the embodiments of this utility model and is not intended to limit this utility model. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A concealed auxiliary wheel device for motorcycles, characterized in that, Includes a mounting plate (2) located at the rear lower part of the motorcycle frame (1), and auxiliary wheel modules (3) are symmetrically arranged on the rear side of the mounting plate (2). The auxiliary wheel module (3) includes a motor drive module (301) and an auxiliary wheel support arm (302) connected sequentially from the inside to the outside. A roller (303) is movably connected to the end of the auxiliary wheel support arm (302).

2. The concealed auxiliary wheel device for a motorcycle according to claim 1, characterized in that, The motor drive module (301) includes a motor (304) and a reduction assembly (305) connected by transmission. The reduction assembly (305) includes a reduction housing (306) and a cover (307) that can be interlocked. The gear shaft (308) of the motor (304) extends into the reduction housing (306). A rotating shaft (309) parallel to the gear shaft (308) is provided inside the reduction housing (306). A first gear (310) and a second gear (311) are sleeved on the rotating shaft (309). The first gear (310) meshes with the gear shaft (308), and the second gear (311) meshes with a third gear (312). The third gear (312) is sleeved on the inner end of the transmission shaft (313). The outer end of the drive shaft (313) passes through the drive shaft hole (314) opened on the cover (307) and is connected to the auxiliary wheel support arm (302).

3. A concealed auxiliary wheel device for a motorcycle according to claim 2, characterized in that, The outer diameter of the first gear (310) is greater than the outer diameter of the third gear (312), the outer diameter of the third gear (312) is greater than the outer diameter of the gear shaft (308), and the outer diameter of the gear shaft (308) is greater than the outer diameter of the second gear (311). The pitch of the gear shaft (308) is equal to the pitch of the first gear (310), the pitch of the second gear (311) is equal to the pitch of the third gear (312), and the pitch of the first gear (310) is less than the pitch of the second gear (311).

4. A concealed auxiliary wheel device for a motorcycle according to claim 2 or 3, characterized in that, The motor (304) is a worm gear motor.

5. A concealed auxiliary wheel device for a motorcycle according to claim 2 or 3, characterized in that, The inner wall of the rotating end of the auxiliary wheel support arm (302) is provided with a groove (319) for the limiting block (318) to be fitted. The limiting block (318) includes a fitting part (320) and an outwardly protruding stop arm (321). The outer end of the drive shaft (313) passes through the fitting part (320) and is connected to the auxiliary wheel support arm (302) by screws.

6. A concealed auxiliary wheel device for a motorcycle according to claim 5, characterized in that, The outer wall of the cover (307) is provided with a T-shaped protrusion (315), and the drive shaft hole (314) passes through the axial center of the T-shaped protrusion (315); a first stop (316) and a second stop (317) are symmetrically arranged on both sides of the drive shaft hole (314), and the bottom side of the first stop (316) or the second stop (317) can abut against the stop arm (321).

7. A concealed auxiliary wheel device for a motorcycle according to claim 6, characterized in that, Both the first stop (316) and the second stop (317) are fan-shaped, and the bottom edge of the first stop (316) and the bottom edge of the second stop (317) form the arc path of the stop arm (321).

8. A concealed auxiliary wheel device for a motorcycle according to claim 2, characterized in that, The outer wall of the deceleration box (306) is provided with a mounting plate fixing block (7) for connecting it to the mounting plate (2) by screws.

9. A concealed auxiliary wheel device for a motorcycle according to claim 1, characterized in that, The two auxiliary wheel support arms (302) are arranged in a figure-eight shape.

10. A concealed auxiliary wheel device for a motorcycle according to claim 9, characterized in that, The distance between the two rollers (303) is no greater than the width of the motorcycle body.

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