Auxiliary wheel for two-wheeled motor vehicle

Abstract

The utility model relates to the technical field of vehicle auxiliary wheels, in particular to an auxiliary wheel for a two-wheeled motor vehicle, which comprises an inner shell, a supporting arm, a supporting wheel and a driving unit, a frame fixing plate is arranged on one side, far away from the supporting arm, of the inner shell, and a plurality of groups of vertically distributed height adjusting holes are formed in the lower end of the middle of the frame fixing plate. The inner shell is fixed to a frame fixing plate through a bolt penetrating through one set of height adjusting holes, frame fixing holes are formed in the upper end of the frame fixing plate, and the frame fixing plate is fixed to a frame bottom fork beam through two sets of bolts penetrating through the fixing clamping plates. The auxiliary wheel has the beneficial effects that the installation height of the auxiliary wheel is adjustable by forming the multiple sets of height adjusting holes in the frame fixing plate, and the auxiliary wheel is conveniently suitable for being installed and used on vehicles with different frame heights; by arranging the parallel adjusting mechanism, the inclination angle of the frame fixing plate in the vertical direction can be adjusted, so that the auxiliary wheel device can be suitable for installation of a frame bottom fork beam in a non-horizontal state, and the adaptability is wider.

Description

Technical Field

[0001] This utility model relates to the field of vehicle auxiliary wheel technology, and in particular to an auxiliary wheel for two-wheeled motor vehicles. Background Technology

[0002] Two-wheeled electric vehicles and motorcycles are commonly used means of transportation. When the vehicle speed is low or the vehicle is tilted, it is difficult to maintain balance, which can easily cause safety hazards and threaten people's personal safety.

[0003] Chinese patent application CN202320245103.9 discloses an automatic lifting auxiliary wheel device for two-wheeled electric vehicles and motorcycles, which solves the technical problems of easy breakage and poor reliability of existing limit components. The device includes an auxiliary wheel, a movable arm, a bracket, and a drive unit. The auxiliary wheel is rotatably supported on the movable arm, which is rotatably supported on the bracket. The drive unit is fixed to the bracket and is connected to the movable arm for transmission. The device is characterized by: a sector gear that rotates synchronously with the movable arm connected to its end; the sector gear meshes with the output gear of the drive unit; the sector gear has a hollow hole; a limit rod passes through the hollow hole and is fixedly connected to the bracket via a support member; the hollow hole has limit grooves on both sides of the sector gear's rotation direction, which cooperate with the limit rod.

[0004] While the aforementioned patent can assist in vehicle balancing, different vehicle models have different frame and fork heights. The aforementioned auxiliary wheel device cannot be conveniently applied to vehicles with different body heights. Each type of vehicle requires a separate design for the size of the movable arm, resulting in poor adaptability. Utility Model Content

[0005] The present invention provides an auxiliary wheel for two-wheeled motor vehicles in order to solve the above-mentioned problems.

[0006] The technical solution of this utility model is implemented as follows:

[0007] An auxiliary wheel for a two-wheeled motor vehicle includes an inner housing, a support arm, a support wheel, and a drive unit. The support wheel is rotatably mounted on one end of the support arm, and the other end of the support arm is rotatably mounted on the inner housing. The drive unit is fixed on the inner housing and is connected to the support arm in a transmission manner to drive the support arm to rotate.

[0008] A frame fixing plate is provided on the side of the inner shell away from the support arm. Several sets of vertically distributed height adjustment holes are formed at the lower middle part of the frame fixing plate. The inner shell is fixed to the frame fixing plate by bolts passing through one set of height adjustment holes. The upper part of the frame fixing plate is formed with frame fixing holes. The frame fixing plate is fixed to the frame horizontal fork beam by two fixing plates and two sets of bolts passing through the fixing plates. Fixing holes for mounting bolts are formed at both ends of the fixing plates. The distance between the fixing holes at both ends of the fixing plates is greater than the height of the frame horizontal fork beam.

[0009] Furthermore, the frame fixing plate is detachably connected to a parallel adjustment mechanism on the side near the frame horizontal fork beam, which adjusts the angle between the frame fixing plate and the frame horizontal fork beam in the vertical direction, and the frame horizontal fork beam is installed in the parallel adjustment mechanism.

[0010] Furthermore, the parallel adjustment mechanism includes a U-shaped clamp installed on the side wall of the frame fixing plate. The slot of the U-shaped clamp is set opposite to the frame flat fork beam. An adjustment bolt is installed on the lower end face of the U-shaped clamp by a threaded connection. Two horizontal adjustment screw holes for mounting screws are formed on the upper end face of the U-shaped clamp.

[0011] Furthermore, the drive unit includes a transmission shaft mounted on the end of the support arm and rotating synchronously therewith. The transmission shaft is fixed inside the inner housing by bearings. A sector gear that rotates synchronously therewith is mounted on the transmission shaft. A planetary reducer is rotatably mounted inside the inner housing by bearings. The power input end of the planetary reducer is driven by a drive motor fixed inside the inner housing. The power output end of the planetary reducer is driven by the sector gear through gears.

[0012] Furthermore, a limiting groove is provided on the sector gear, the limiting groove is an arc-shaped structure, and a bolt passing through the limiting groove is detachably connected to the inner housing.

[0013] Furthermore, it also includes an outer housing that covers the outside of the drive unit, the outer housing being fixed together with the inner housing via a detachable connection.

[0014] The beneficial effects of this utility model by adopting the above technical solution are as follows: by setting multiple sets of height adjustment holes on the frame fixing plate, the installation height of the auxiliary wheel can be adjusted, which is convenient for installation on vehicles with different frame heights; by setting a parallel adjustment mechanism, the vertical tilt angle of the frame fixing plate can be adjusted, so that the auxiliary wheel device can be used for installation on non-horizontal frame flat fork beams, and has wider adaptability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is the first perspective view of the present invention;

[0017] Figure 2 This is the second perspective view of the present invention;

[0018] Figure 3 This is an exploded view of the present invention;

[0019] Figure 4 This is a side view of the present invention;

[0020] Figure 5 This is a perspective view of the present invention with the outer shell removed;

[0021] Figure 6 This is the front view of this utility model.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Inner shell; 2. Drive shaft; 3. Sector gear; 31. Limiting groove; 4. Support arm; 5. Support wheel; 6. Planetary reducer; 7. Worm gear; 8. Drive motor; 9. Worm; 10. Outer shell; 11. Frame fixing plate; 12. Height adjustment hole; 13. Frame fixing hole; 14. Parallel adjustment mechanism; 1401. U-shaped clamp; 1402. Adjusting bolt; 1403. Horizontal adjustment screw hole; 15. Frame flat fork beam; 16. Fixing clamp. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-5 As shown, an auxiliary wheel for a two-wheeled motor vehicle includes an inner housing 1, a support arm 4, a support wheel 5, and a drive unit. The support wheel 5 is rotatably mounted on one end of the support arm 4, and the other end of the support arm 4 is rotatably mounted on the inner housing 1. The drive unit is fixed on the inner housing 1 and is connected to the support arm 4 in a transmission manner to drive the support arm 4 to rotate.

[0026] A frame fixing plate 11 is provided on the side of the inner shell 1 away from the support arm 4. Five sets of vertically distributed height adjustment holes 12 are formed at the lower center of the frame fixing plate 11, with a spacing of 12mm between each set and four adjustment holes in each set. The inner shell 1 is fixed to the frame fixing plate 11 by bolts passing through one set of height adjustment holes 12. By adjusting the installation position of the bolts, the fixing position of the inner shell 1 relative to the frame fixing plate 11 can be adjusted, thereby adjusting the distance of the auxiliary wheel device from the ground, facilitating installation on frames of different heights. A frame is formed at the upper end of the frame fixing plate 11. The frame mounting plate 11 is fixed to the frame horizontal fork beam 15 by two mounting plates 16 and two sets of bolts passing through the mounting plates 16. The mounting plates 16 have mounting holes for mounting bolts at both ends. The distance between the mounting holes at both ends of the mounting plates 16 is greater than the height of the frame horizontal fork beam 15. Each mounting plate 16 is fixed to the frame mounting plate 11 by at least two bolts. Since the distance between the mounting holes at both ends of the mounting plates 16 is greater than the height of the frame horizontal fork beam 15, the angle of the frame mounting plate 11 relative to the frame horizontal fork beam 15 in the vertical direction can be adjusted slightly.

[0027] In this embodiment, a parallel adjustment mechanism 14 is detachably connected to the side of the frame fixing plate 11 near the frame horizontal fork beam 15 to adjust the vertical angle between the frame fixing plate 11 and the frame horizontal fork beam 15. The frame horizontal fork beam 15 is installed in the parallel adjustment mechanism 14. The parallel adjustment mechanism 14 includes a U-shaped clamp 1401 installed on the side wall of the frame fixing plate 11. The slot of the U-shaped clamp 1401 is set facing the frame horizontal fork beam 15. An adjusting bolt 1402 is installed on the lower end face of the U-shaped clamp 1401 by threaded connection. Two horizontal adjusting screw holes 1403 for mounting screws are formed on the upper end face of the U-shaped clamp 1401. The fixed angle between the U-shaped clamp 1401 and the frame horizontal fork beam 15 can be adjusted by adjusting the bolts installed on the upper and lower ends of the U-shaped clamp 1401 and cooperating with the bolts installed on the fixing plate 16.

[0028] In this embodiment, the drive unit includes a transmission shaft 2 installed at the end of the support arm 4 and rotating synchronously therewith. The support arm 4 and the end of the transmission shaft 2 are engaged together by a snap-fit ​​structure and fixed with bolts. The transmission shaft 2 is fixed in the inner housing 1 by bearings. A sector gear 3 that rotates synchronously with the transmission shaft 2 is installed on the transmission shaft 2. A planetary reducer 6 is rotatably installed in the inner housing 1 by bearings. The power input end of the planetary reducer 6 is connected to a drive motor 8 fixed in the inner housing 1. A worm gear 9 is installed at the power output end of the drive motor 8. The power input end of the planetary reducer 6 is installed on a worm wheel 7 that meshes with the worm gear 9. The power output end of the planetary reducer 6 is connected to the sector gear 3 by gears. After receiving a control signal, the drive motor 8 starts and transmits power to the support arm through the worm wheel and worm gear mechanism and the planetary reducer, driving the support arm to rotate.

[0029] In this embodiment, a limiting groove 31 is provided on the sector gear 3. The limiting groove 31 has an arc-shaped structure. A bolt passing through the limiting groove 31 is detachably connected to the inner housing 1. The bolt passing through the limiting groove 31 can limit the rotation angle of the sector gear 3, thereby controlling the rotation range of the support arm 4. Using bolts as limiting components can reduce production costs. In order to improve the service life of the limiting bolts, protective sleeves can be formed at corresponding positions inside the inner housing 1 and the outer housing 10.

[0030] In this embodiment, an outer housing 10 covering the drive unit is also included. The outer housing 10 is fixed to the inner housing 1 by a detachable connection, which serves both an aesthetic purpose and a dustproof and waterproof purpose. In order to improve the overall fixing effect, the bolts restricting the sector gear 3 can pass through the outer housing 10 and be fixed to the inner housing 1. The drive shaft 2 and the planetary reducer 6 can be installed on the inner housing 1 at one end and on the inner side of the outer housing 10 at the other end.

[0031] In this embodiment, the lower end of the support arm 4 is integrally formed with a support portion facing its rotation area. When the support arm 4 rotates to its limit position and the angle with the vertical plane is less than 5°, the lower end of the support portion extends beyond the lower end of the support wheel 5 and contacts the ground, causing the rear end of the vehicle to leave the ground and enabling the vehicle to stop. The support portion can increase the support area of ​​the lower end of the support arm 4 and improve the stability of the support when the vehicle is stopped.

[0032] The working principle of this utility model is as follows: During installation, the parallel adjustment mechanism 14, on which the frame fixing plate 11 is installed, is clamped onto the frame horizontal fork beam 15. The frame fixing plate 11 is installed onto the frame horizontal fork beam 15 by using bolts passing through the fixing clamp 16 and the fixing holes on the frame fixing plate 11. At this time, the bolts passing through the fixing clamp 16 are not tightened. The height of the adjusting bolt 1402 and the two screws fixed at the horizontal adjusting screw hole 1403 are adjusted to adjust the tilt angle of the frame fixing plate 11 relative to the frame horizontal fork beam 15. After the angle is adjusted appropriately, the bolts fixed to the fixing clamp 16 are tightened to firmly fix the frame fixing plate 11 onto the frame fixing plate 15. Then, the assembled auxiliary wheel assembly is placed outside the frame fixing plate 11. On the side, the auxiliary wheel assembly is fixed to the frame mounting plate 11 by bolts passing through the height adjustment hole 12. The installation height of the auxiliary wheel assembly is adjusted by adjusting the corresponding installation position, and the distance between the support wheel 5 and the frame flat fork beam 15 is adjusted. After two sets of auxiliary wheels are symmetrically installed on both sides of the vehicle, when the vehicle is in motion, the drive motor 8 controls the support arm 4 to be in an inclined state. The support wheel 5 is in contact with the ground to prevent the vehicle from tilting too much and causing the vehicle to tip over. When the vehicle is stopped, the drive motor 8 can be controlled to drive the support arm 4 to a vertical state. The end of the support arm 4 contacts the ground, so that the support wheel 5 and the rear wheel of the vehicle are separated from the ground. The two support arms 4 form a support frame to support the vehicle and ensure that the vehicle will not tip over.

[0033] Components not described in detail in this article are existing technologies.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A two-wheeled motor vehicle auxiliary wheel, comprising an inner housing (1), a support arm (4), a support wheel (5) and a driving unit, the support wheel (5) being rotatably mounted at one end of the support arm (4), the other end of the support arm (4) being rotatably mounted on the inner housing (1), and the driving unit being fixed on the inner housing (1) and being in driving connection with the support arm (4) to drive the support arm (4) to rotate; characterized in that: The inner shell (1) is provided with a frame fixing plate (11) on the side away from the support arm (4), a plurality of groups of vertically distributed height adjusting holes (12) are formed in the middle lower end of the frame fixing plate (11), the inner shell (1) is fixed together with the frame fixing plate (11) by a bolt passing through one of the groups of height adjusting holes (12), a frame fixing hole (13) is formed in the upper end of the frame fixing plate (11), the frame fixing plate (11) is fixed on the frame flat fork beam (15) by two fixing clamping plates (16) and two groups of bolts passing through the fixing clamping plates (16), fixing holes for mounting bolts are formed in the two ends of the fixing clamping plate (16), and the distance between the fixing holes in the two ends of the fixing clamping plate (16) is greater than the height of the frame flat fork beam (15). ​ 2. The auxiliary wheel for a two-wheeled motor vehicle according to claim 1, characterized in that: The frame fixing plate (11) is provided with a parallel adjusting mechanism (14) for adjusting the vertical angle between the frame fixing plate (11) and the frame flat fork beam (15) on the side close to the frame flat fork beam (15), and the frame flat fork beam (15) is installed in the parallel adjusting mechanism (14).

3. The auxiliary wheel for a two-wheeled motor vehicle according to claim 2, characterized in that: The parallel adjusting mechanism (14) comprises a U-shaped clamp (1401) installed on the side wall of the frame fixing plate (11), the notch of the U-shaped clamp (1401) is arranged opposite to the frame flat fork beam (15), an adjusting bolt (1402) is installed on the lower end face of the U-shaped clamp (1401) through threaded connection, and two horizontal adjusting screw holes (1403) for mounting screws are formed in the upper end face of the U-shaped clamp (1401).

4. The auxiliary wheel for a two-wheeled motor vehicle according to claim 1, characterized in that: The driving unit comprises a transmission shaft (2) installed at the end of the support arm (4) and synchronously rotating with the support arm (4), the transmission shaft (2) is fixed in the inner shell (1) through a bearing, a sector gear (3) synchronously rotating with the transmission shaft (2) is installed on the transmission shaft (2), a planetary reducer (6) is rotatably installed in the inner shell (1) through a bearing, a driving motor (8) fixed in the inner shell (1) is drivingly connected to the power input end of the planetary reducer (6), and the power output end of the planetary reducer (6) is drivingly connected to the sector gear (3) through a gear.

5. The auxiliary wheel for a two-wheeled motor vehicle according to claim 4, characterized in that: A limiting sliding groove (31) is formed in the sector gear (3), the limiting sliding groove (31) is an arc-shaped structure, and a bolt passing through the limiting sliding groove (31) is detachably connected and installed on the inner shell (1).

6. The auxiliary wheel for a two-wheeled motor vehicle according to claim 1, characterized in that: An outer shell (10) covering the outside of the driving unit is further provided, and the outer shell (10) is fixed together with the inner shell (1) through detachable connection.

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