Auxiliary wheel and two-wheeled vehicle

Abstract

The utility model discloses an auxiliary wheel and a two-wheeled vehicle, and relates to the technical field of vehicles, the auxiliary wheel comprises a support, the support is provided with a first fixing position and a second fixing position which are oppositely arranged, and the first fixing position is used for being connected with a target vehicle body; and the omnidirectional wheel is arranged at the second fixing position, the omnidirectional wheel is provided with a main wheel and a plurality of auxiliary wheels which are annularly arranged along the outer contour of the main wheel, and the rotating directions of the main wheel and the auxiliary wheels are different. The auxiliary wheel provided by the utility model aims to improve the driving safety of the two-wheeled vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation tools, in particular to an auxiliary wheel and a two-wheeled vehicle. Background Art

[0002] Two-wheeled vehicles, especially e-cargo for cargo, are popular in foreign markets. These two-wheeled vehicles are equipped with electric auxiliary systems, usually including motors, batteries and control systems, which can provide power support for riders while riding, making riding relatively easy even when loaded with a large amount of cargo. Cargo two-wheeled vehicles usually have reinforced frames, large-capacity shelves or extended loading platforms, which can safely and stably transport goods, such as supermarket shopping, furniture, child pick-up or commercial delivery.

[0003] Since this type of two-wheeled vehicle has complex usage scenarios, it has low safety issues when carrying cargo. Utility Model Content

[0004] The utility model mainly provides an auxiliary wheel and a two-wheeled vehicle, aiming to improve the driving safety of the cargo-carrying two-wheeled vehicle.

[0005] In order to achieve the above-mentioned purpose, the auxiliary wheel proposed by the utility model comprises:

[0006] A bracket, wherein the bracket has a first fixing position and a second fixing position arranged relatively to each other, wherein the first fixing position is used for connecting to a target vehicle body;

[0007] An omnidirectional wheel, wherein the omnidirectional wheel is arranged at the second fixed position, and the omnidirectional wheel comprises a main wheel and a plurality of secondary wheels arranged in a ring shape along the outer contour of the main wheel, wherein the central axis of the main wheel faces a first direction, and the central axis of the secondary wheels faces a second direction, and the first direction and the second direction are arranged non-parallel.

[0008] In one embodiment, the bracket includes at least one connecting plate, the connecting plate is provided with a connecting hole at the second fixing position, and the omnidirectional wheel is rotatably connected to the connecting hole via a connecting rod.

[0009] In one embodiment, the number of the connecting plate is one to form a single-sided bracket;

[0010] The first fixed position of the connecting plate is connected to the target vehicle body, the omnidirectional wheel has a hub, and the bearing of the hub is connected to the second fixed position of the connecting plate through a connecting rod, so that the omnidirectional wheel is rotatably connected to the connecting plate.

[0011] In one embodiment, the number of the connecting plates is two to form a bilateral bracket;

[0012] The omnidirectional wheel has a hub, and the bearing of the hub is rotatably connected to the bilateral bracket through a connecting rod.

[0013] In one embodiment, the central rotation axis of the main wheel faces a first direction, and the central rotation axis of the secondary wheel faces a second direction;

[0014] The first direction is perpendicular to the second direction.

[0015] In one embodiment, the secondary wheel comprises a first secondary wheel and a second secondary wheel, the radius of the first secondary wheel is larger than that of the second secondary wheel, and the first secondary wheel and the second secondary wheel are alternately arranged on the outer contour of the main wheel.

[0016] In one embodiment, the bracket has a first end and a second end, and the omnidirectional wheel is mounted on the first end;

[0017] The auxiliary wheel further comprises a driving assembly, the driving assembly being drivingly connected to the first end of the bracket; the first end has a first position relatively close to the driving assembly and a second position far away from the driving assembly;

[0018] The driving assembly is capable of driving the first end of the bracket to switch between the first position and the second position.

[0019] The utility model also provides a two-wheeled vehicle, which comprises the auxiliary wheels mentioned above.

[0020] In one embodiment, the two-wheeled vehicle is a cargo two-wheeled vehicle, and the cargo two-wheeled vehicle comprises:

[0021] Vehicle body;

[0022] A shelf, the shelf being arranged on the vehicle body;

[0023] The auxiliary wheel is arranged at a position of the vehicle body corresponding to the shelf, or the auxiliary wheel is arranged at a position between the front wheel and the rear wheel of the vehicle body.

[0024] In one embodiment, the two-wheeled vehicle further comprises a control component, wherein the control component is electrically connected to the driving component of the auxiliary wheel;

[0025] When receiving the first signal, the control component controls the driving component to drive the bracket to rotate, so that the bracket drives the omnidirectional wheel to move to the first position;

[0026] When receiving the second signal, the control component controls the driving component to drive the bracket to rotate, so that the bracket drives the omnidirectional wheel to move to the second position.

[0027] In one embodiment, the number of the bracket and the number of the omnidirectional wheel are both one, and the bracket and the omnidirectional wheel are arranged on either side of the vehicle body;

[0028] Alternatively, there are multiple brackets and omnidirectional wheels, and at least one bracket and at least one omnidirectional wheel are disposed on both sides of the vehicle body.

[0029] In one embodiment, when there are multiple brackets and omnidirectional wheels, the driving assembly of the auxiliary wheel is drivingly connected to the multiple brackets respectively;

[0030] Alternatively, the number of the driving components corresponds to the number of the brackets, and each of the driving components is drivingly connected to a bracket.

[0031] The auxiliary wheel provided by the utility model comprises a bracket and an omnidirectional wheel, wherein the omnidirectional wheel is arranged on the bracket, the bracket is connected to the target vehicle body, and the omnidirectional wheel has a main wheel and a secondary wheel, and can rotate in multiple directions. First, the auxiliary wheel provides a balanced support force for the cargo two-wheeled vehicle, ensuring that the cargo two-wheeled vehicle has a certain degree of safety when walking on a narrow intersection or driving at a low speed. Secondly, the omnidirectional wheel realizes passive steering. When the moving direction of the target vehicle body changes through the omnidirectional wheel, the auxiliary wheel follows the change. Therefore, the auxiliary wheel can be arranged at any position of the two-wheeled vehicle (cargo two-wheeled vehicle), which increases the applicability of the auxiliary wheel. Traditional auxiliary wheels do not have a self-contained steering function and can only be arranged on both sides of the front wheel or the rear wheel. At the same time, through the steering function, the stability of the two-wheeled vehicle using the auxiliary wheel is also improved, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 A specific structural diagram of an auxiliary wheel embodiment provided by the utility model;

[0034] Figure 2 A specific structural diagram of an embodiment of an omnidirectional wheel provided by the utility model;

[0035] Figure 3 A detailed structural diagram of another embodiment of the auxiliary wheel provided by the utility model;

[0036] Figure 4 A detailed structural diagram of another embodiment of the auxiliary wheel provided by the utility model;

[0037] Figure 5 A schematic diagram of the auxiliary wheel provided by the utility model in the first position;

[0038] Figure 6 This is a schematic diagram of the auxiliary wheel provided by the utility model in the second position.

[0039] Description of Figure Numbers:

[0040] 100. Auxiliary wheel; 1. Bracket; 11. First fixing position; 12. Second fixing position; 13. Connecting plate; 2. Omnidirectional wheel; 21. Main wheel; 22. Secondary wheel; 23. Wheel hub; 24. Bearing; 3. Driving assembly.

[0041] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. 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 utility model.

[0045] Two-wheeled vehicles, especially e-cargo for cargo, are popular in foreign markets. These two-wheeled vehicles are equipped with electric auxiliary systems, usually including motors, batteries and control systems, which can provide power support for riders while riding, making riding relatively easy even when loaded with a large amount of cargo. Two-wheeled cargo vehicles usually have reinforced frames, large-capacity shelves or extended loading platforms, which can safely and stably transport goods, such as supermarket shopping, furniture, child pick-up or commercial delivery. Due to the complex usage scenarios of these two-wheeled vehicles, they have low safety issues when carrying cargo.

[0046] To solve the above problems, refer to Figure 1-Figure 3 The utility model provides an auxiliary wheel 100, wherein the auxiliary wheel 100 includes a bracket 1, the bracket 1 has a first fixing position 11 and a second fixing position 12 which are relatively arranged, the first fixing position 11 is used to connect to a target vehicle body; an omnidirectional wheel 2, the omnidirectional wheel 2 is arranged at the second fixing position 12, the omnidirectional wheel 2 has a main wheel 21 and a plurality of secondary wheels 22 which are arranged in a ring shape along the outer contour of the main wheel 21, the central axis of the main wheel 21 faces a first direction, the central axis of the secondary wheel 22 faces a second direction, and the first direction is not parallel to the second direction.

[0047] The bracket 1 has a first fixing position 11 and a second fixing position 12 which are arranged relatively to each other. The first fixing position 11 is connected to the main structure using the auxiliary wheel 100 to ensure that the auxiliary wheel 100 can be firmly installed on the vehicle body so that the auxiliary wheel 100 can withstand the weight and dynamic load from the vehicle body. The auxiliary wheel 100 is applied to a cargo two-wheeled vehicle. When the two-wheeled vehicle is loaded with cargo, the weight of the two-wheeled vehicle will be greatly increased. At the same time, due to the placement of the cargo, the unbalanced torque will be increased. The auxiliary wheel 100 provides a support point to improve the negative effects caused by the weight increase and the unbalanced torque.

[0048] The omnidirectional wheel 2 is placed at a position corresponding to the second fixing position 12 on the bracket 1. The omnidirectional wheel 2 is the part of the auxiliary wheel 100 that directly contacts the ground and is responsible for providing additional support and balance. A fixing member (such as a bolt or a pin) passes through the omnidirectional wheel 2 and is fixed to the bracket 1, ensuring that the omnidirectional wheel 2 is stable and immobile during use and will not be displaced due to vibration or external force.

[0049] It should be noted that when the auxiliary wheel 100 is arranged between the front wheel and the rear wheel (excluding the position of the front wheel and the rear wheel) on both sides of the body of the two-wheeled vehicle (cargo two-wheeled vehicle), if the auxiliary wheel 100 has no steering function, it will cause a dragging feeling or resistance when turning, affecting the smoothness of riding, and may damage the omnidirectional wheel 2 or the bracket 1. Therefore, the omnidirectional wheel 2 in this embodiment adopts the omnidirectional wheel 2 design, which can not only freely adapt to various steering requirements and ensure the high maneuverability of the vehicle in a small space, but also ensure that when the auxiliary wheel 100 turns with the vehicle body, the difference in the rotation direction between the wheels will not cause interference or unnecessary wear, thereby significantly improving the user experience and system durability.

[0050] The omnidirectional wheel 2 is composed of a main wheel 21 and a series of secondary wheels 22. The main wheel 21 is the central part of the omnidirectional wheel 2, responsible for bearing most of the weight, and is connected to the bracket 1. Multiple secondary wheels 22 are arranged in a ring shape around the outer contour of the main wheel 21 and can rotate independently of the main wheel 21. The rotation axis of each secondary wheel 22 forms a certain angle with the rotation axis of the main wheel 21, usually a vertical relationship. Therefore, when the two-wheeled vehicle moves forward, the main wheel 21 of the omnidirectional wheel 2 is dominant, and the secondary wheel 22 does not work, so that the auxiliary wheel 100 follows the vehicle body forward; when the two-wheeled vehicle turns, the main wheel 21 and the secondary wheel 22 work together, the main wheel 21 rolls in the direction of the vehicle's forward movement, and the secondary wheel 22 rolls in the direction of the vehicle's turning, so as to realize the passive steering function of the auxiliary wheel 100. Thereby, the omnidirectional wheel 2 can realize multi-directional movement, which is equivalent to an additional steering function.

[0051] It can be seen that the auxiliary wheel 100 provided by the utility model includes a bracket 1 and an omnidirectional wheel 2, wherein the omnidirectional wheel 2 is arranged on the bracket 1, the bracket 1 is connected to the target vehicle body, and the omnidirectional wheel 2 has a main wheel 21 and a secondary wheel 22, which can rotate in multiple directions. First, the auxiliary wheel 100 provides a balancing support force for the cargo two-wheeled vehicle to increase the safety of the cargo two-wheeled vehicle, and helps to share the weight of the vehicle body by providing additional ground contact area and support points, and reduces the risk of rollover, especially when driving at low speed, turning, loading or driving on uneven roads, and when fully loaded or at the moment of easy loss of balance such as starting, stopping, and driving at low speed, the stability of the cargo two-wheeled vehicle can be improved. Secondly, the omnidirectional wheel 2 realizes passive steering. Through the omnidirectional wheel 2, when the moving direction of the target vehicle body changes, the auxiliary wheel 100 follows the change, so the auxiliary wheel 100 can be set at any position of the cargo two-wheeled vehicle. The traditional auxiliary wheel 100 does not have a self-contained steering function and can only be set on both sides of the front wheel or the rear wheel. Therefore, the auxiliary wheel 100 increases the applicability of the auxiliary wheel 100 , and at the same time, through the steering function, it also improves the stability of the cargo-carrying two-wheeled vehicle using the auxiliary wheel 100 , thereby improving the safety.

[0052] refer to Figure 1 and Figure 3In this embodiment, the bracket 1 includes at least one connecting plate 13, and the connecting plate 13 is provided with a connecting hole at the second fixing position 12, and the omnidirectional wheel 2 is rotatably connected to the connecting hole through a connecting rod.

[0053] It should be noted that the bracket 1 may include only one connecting plate 13, and one connecting plate 13 is used to form a single-sided bracket 1, and the omnidirectional wheel 2 is arranged on either side of the connecting plate 13; the bracket 1 may also include two connecting plates 13 to form a double-sided bracket 1, and the omnidirectional wheel 2 is arranged in the middle of the two connecting plates 13; the bracket 1 may also include multiple connecting plates 13 to form a multilateral bracket 1. The number of connecting plates 13 is designed according to actual needs. The more the number of connecting plates 13, the higher the strength of the bracket 1, but too many connecting plates 13 will only increase the redundant weight of the auxiliary wheel 100.

[0054] refer to Figure 1 In this embodiment, the number of the connecting plate 13 is one to form a single-sided bracket 1; the first fixed position 11 of the connecting plate 13 is connected to the target vehicle body, the omnidirectional wheel 2 has a hub 23, and the bearing 24 of the hub 23 is connected to the second fixed position 12 of the connecting plate 13 through a connecting rod, so that the omnidirectional wheel 2 is rotatably connected to the connecting plate 13.

[0055] It should be noted that the above embodiment is a unilateral bracket 1 structure, that is, a single plate, and the omnidirectional wheel 2 includes a hub 23 and a bearing 24 arranged at the center of the hub 23. The bearing 24 is connected to the connecting plate 13 through a rotating rod, and then the connecting plate 13 is fixed to the vehicle body, which simplifies the installation process and reduces the number of components, making the overall structure more compact and lightweight. The unilateral bracket 1 directly fixes the auxiliary wheel 100 system to one side or both sides of the vehicle body, which not only saves space, but also reduces the manufacturing cost and maintenance difficulty to a certain extent.

[0056] Since the single-side plate structure is fragile, if the auxiliary wheel 100 has no steering function when the vehicle body turns, a lateral force will be generated on the first connecting plate 13. The application of the lateral force may cause the connecting plate 13 to bear additional stress, which may affect its stability and durability in the long term, thereby shortening the service life of the auxiliary wheel 100. Therefore, in this embodiment, the omnidirectional wheel 2 is matched with the single-side plate structure, and the omnidirectional wheel 2 effectively disperses the lateral force and reduces the direct stress on the single-side bracket 1, thereby significantly improving the stability and durability of the overall structure.

[0057] Therefore, the omnidirectional wheel 2 cooperates with the single-board structure to simplify the overall structure and increase the service life. The steering function also improves the driving safety of the two-wheeled vehicle using the auxiliary wheel 100.

[0058] refer to Figure 3In this embodiment, the number of the connecting plates 13 is two to form a bilateral bracket 1; the omnidirectional wheel 2 has a hub 23, and the bearing 24 of the hub 23 is rotatably connected to the bilateral bracket 1 through a connecting rod.

[0059] A double-sided bracket 1 is adopted, and the bearing 24 of the omnidirectional wheel 2 is fixed between the double-sided brackets 1 through a rotating connecting rod, forming a more stable frame structure, evenly distributing the load between the auxiliary wheel 100 and the vehicle body, and significantly enhancing the rigidity and torsion resistance of the entire auxiliary wheel 100 system, so as to better cope with complex road conditions and large load conditions.

[0060] Similarly, the omnidirectional wheel 2 structure can be coordinated with the double-plate structure. The omnidirectional wheel 2 effectively disperses the lateral force and reduces the direct stress on the bilateral bracket 1, thereby significantly improving the stability and durability of the overall structure.

[0061] It should be noted that the main disadvantage of the single-board structure lies in its limitations in load-bearing capacity and stability. Since only one connecting plate 13 is relied upon to simultaneously fix the omnidirectional wheel 2 and the vehicle body, the single-board structure may be at risk of excessive bending, deformation, or even breakage when subjected to a large load or encountering complex road conditions (such as bumps and slopes). In addition, the support points of the single-board structure for the vehicle body and the omnidirectional wheel 2 are relatively concentrated, and the stability of the connection is relatively low. Therefore, compared with the unilateral bracket 1, the bilateral bracket 1 has higher stability and can be applied to heavier two-wheeled vehicles, such as cargo two-wheeled vehicles; the unilateral bracket 1 has a lighter structure and is suitable for ordinary two-wheeled vehicles.

[0062] refer to Figure 2 In this embodiment, the central rotation axis of the main wheel 21 faces a first direction, and the central rotation axis of the secondary wheel 22 faces a second direction; the first direction is perpendicular to the second direction.

[0063] The omnidirectional wheel 2 consists of a central main wheel 21 and a plurality of secondary wheels 22 arranged around its outer contour. In this design, the central axis of rotation of the main wheel 21 points to a first direction, while the central axis of rotation of the secondary wheels 22 surrounding it points to a second direction perpendicular to the central axis of the main wheel 21. That is, when the main wheel 21 rotates in one direction, the secondary wheels 22 connected thereto can roll freely in almost any direction due to their independent rotation axes.

[0064] The rotation center axis of the main wheel 21 is the central part of the omnidirectional wheel 2, which is directly connected to the auxiliary wheel 100 bracket 1 of the vehicle and rotates with the forward direction of the vehicle. For example, if the vehicle is moving forward, the main wheel 21 also rotates in the forward direction of the vehicle. The secondary wheel 22 is distributed around the outer contour of the main wheel 21, and the rotation axis of the secondary wheel 22 is perpendicular to the rotation axis of the main wheel 21. The secondary wheel 22 can rotate freely in all directions independently of the main wheel 21. Whether the vehicle is moving straight, turning or rotating in place, the secondary wheel 22 can adapt to the changes in the ground contact point and maintain good ground adhesion.

[0065] Therefore, the cooperation between the main wheel 21 and the secondary wheel 22 enables the omnidirectional wheel 2 to easily complete the turning without changing the direction of the vehicle body, thereby improving the flexibility and controllability of the vehicle.

[0066] In this embodiment, the auxiliary wheel 22 includes a first auxiliary wheel 22 and a second auxiliary wheel 22 . The radius of the first auxiliary wheel 22 is greater than that of the second auxiliary wheel 22 . The first auxiliary wheel 22 and the second auxiliary wheel 22 are alternately arranged on the outer contour of the main wheel 21 .

[0067] The radius of the first auxiliary wheel 22 is larger than that of the second auxiliary wheel 22. The alternating large and small auxiliary wheels 22 are intended to optimize the contact performance between the wheel and the ground. The large radius auxiliary wheel 22 can provide better support and stability, while the small radius auxiliary wheel 22 plays a role in flexibility. The combination of the two can ensure good grip and controllability under various ground conditions.

[0068] It should be noted that if all the secondary wheels 22 are of the same size, then the secondary wheels 22 are arranged behind the main wheels 21, and there will be a large gap at the ground contact end, which will affect the driving stability. Therefore, the first secondary wheel 22 and the second secondary wheel 22 are of different sizes, and are alternately arranged on the outer contour of the main wheel 21 according to a certain rule, so that there is always a secondary wheel 22 that can effectively contact the ground, provide continuous support and balance, and can flexibly adapt to the distribution of forces in different directions, especially when turning.

[0069] The secondary wheel 22 has two forms, one is a circular roller, see Figure 2 The circular roller is a complete ring shape, the center of which penetrates the outer contour of the main wheel 21 and cooperates with a specific connecting rod (such as the first self-rotating connecting rod) of the main wheel 21 to rotate synchronously. This structure is relatively closed, and each roller rotates independently, providing support and rolling functions by contacting the ground.

[0070] Another form is a crawler-shaped roller, wherein the main wheel 21 is provided with a plurality of first self-rotating connecting rods arranged from the center to the outer contour, and the outer contour of the main wheel 21 is provided with a second self-rotating connecting rod corresponding to the first self-rotating connecting rod; the secondary wheel 22 is an annular strip, and the annular strip is rollingly connected to the first self-rotating connecting rod and the second self-rotating connecting rod. The belt-shaped roller is slidably connected to the connecting rods (first and second self-rotating connecting rods) of the inner and outer contours of the main wheel 21 through a continuous annular belt (or other flexible material). This design allows the belt to roll on the connecting rod.

[0071] It should be noted that the round roller emphasizes load-bearing capacity and durability, and is suitable for heavy loads and harsh ground conditions, while the strip roller focuses on flexibility and portability, and is suitable for scenarios that require fast movement and reduced ground damage. When designing the omnidirectional wheel 2, the actual application scenarios and performance requirements are considered to select the most suitable secondary wheel 22 form.

[0072] In this embodiment, reference Figure 4-Figure 6 The bracket 1 has a first end and a second end, and the omnidirectional wheel 2 is installed on the first end; the auxiliary wheel 100 also includes a driving component 3, which is drivingly connected to the first end of the bracket 1; the first end has a first position relatively close to the driving component 3 and a second position far away from the driving component 3; the driving component 3 can drive the first end of the bracket 1 to switch between the first position and the second position.

[0073] It can be understood that the omnidirectional wheel 2 is mounted on the first end, the driving assembly 3 is mounted on the second end, and the driving assembly 3 drives the bracket 1 to rotate along its second end, and the rotation plane is perpendicular to the horizontal plane. When the bracket 1 is rotated, the omnidirectional wheel 2 on the first end is driven to switch between the first position and the second position. Figure 5 , the first position corresponds to the position where the auxiliary wheel 100 is retracted, that is, when driving, the auxiliary wheel 100 is far away from the support (ground), so that the auxiliary wheel 100 does not work; Figure 6 , the second position corresponds to the distance between the omnidirectional wheel 2 of the auxiliary wheel 100 and the target vehicle body reaching the maximum value, the auxiliary wheel 100 and the wheels of the vehicle body support the ground together, and the auxiliary wheel 100 works. It can be seen that the auxiliary wheel 100 has a recovery state (first position) and an auxiliary state (second position).

[0074] The application scenarios of the recycling state are: when the vehicle is able to stably drive at high speed, the auxiliary wheels 100 can be retracted to reduce unnecessary friction and wind resistance and improve driving efficiency. When the road conditions are good, such as when driving on a flat and spacious road, such as a flat asphalt road in the city, the main wheels 21 are sufficient to provide the required stability and support. At this time, retracting the auxiliary wheels 100 can reduce the wear and energy consumption of parts.

[0075] The auxiliary state application scenarios are: when the vehicle is driving at a low speed, starting or needs to move slowly, the lowering of the auxiliary wheel 100 can significantly increase the stability of the vehicle and prevent tipping, which is especially important when loading cargo. When facing uneven ground, ramps, gravel roads or slippery roads, the support of the auxiliary wheel 100 can provide additional grip and balance to prevent slipping or loss of control. When delicate operations such as turning, reversing or moving in a narrow space are required, the auxiliary wheel 100 can provide additional control and stability to help the vehicle complete these actions more flexibly. When the vehicle is loaded with a large amount of cargo and the center of gravity is high or offset, the lowering of the auxiliary wheel 100 can effectively share the load-bearing of the main wheel 21, prevent overload, and ensure driving safety.

[0076] It can be seen that the auxiliary wheel 100 switches between the first position and the second position in order to find the best balance between different driving conditions and requirements, which not only ensures the safety and stability of driving, but also takes into account the efficiency and convenience.

[0077] The driving component 3 can be a driving motor or a hydraulic or pneumatic system or an electromagnetic drive, etc. The present embodiment adopts a driving motor, which is user-controlled. The user interacts with the driving motor through an interactive method. It should be noted that the driving command is directly transmitted to the auxiliary wheel 100 to achieve switching between the first position and the second position, thereby improving driving convenience and the adaptability of the two-wheeled vehicle, and can be applied to a variety of environments, thereby improving driving safety.

[0078] The utility model also provides a two-wheeled vehicle, wherein the two-wheeled vehicle comprises the auxiliary wheels 100 as described above.

[0079] Since the two-wheeled vehicle includes an auxiliary wheel 100, the specific structure of the auxiliary wheel 100 refers to the above embodiment. Since the two-wheeled vehicle adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0080] The two-wheeled vehicle adopts the auxiliary wheel 100, and the position switching of the auxiliary wheel 100 can be achieved by the system controlling the drive component 3 to achieve automatic switching according to the scene, or the user can directly control the drive component 3 to switch. User-active switching means that the user controls the auxiliary wheel 100 to switch positions according to the situation, which has high controllability and adaptability, thereby improving safety. For automatic switching, the auxiliary wheel 100 of the two-wheeled vehicle can automatically switch between the recovery state and the auxiliary state according to the driving conditions: when driving on a straight, high-speed road or on a road that does not require additional support, the auxiliary wheel 100 automatically retracts to the first position, reducing unnecessary ground contact, reducing resistance, and improving riding efficiency; and when driving at low speed, starting, loading, turning or facing complex roads, the auxiliary wheel 100 quickly drops to the second position and supports together with the main wheel of the vehicle body, significantly enhancing the stability and safety of the vehicle.

[0081] In this embodiment, the two-wheeled vehicle is a cargo two-wheeled vehicle, and the cargo two-wheeled vehicle includes: a vehicle body; a cargo shelf, and the cargo shelf is arranged on the vehicle body; the auxiliary wheel 100 is arranged at a position of the vehicle body corresponding to the cargo shelf, or the auxiliary wheel 100 is arranged at a position of the vehicle body corresponding to the front wheel and the rear wheel.

[0082] The auxiliary wheel 100 is arranged at the position of the vehicle body corresponding to the shelf, directly strengthening the support for the cargo loading area, especially when the shelf is full of heavy objects, it can effectively disperse the burden of the vehicle body and prevent the vehicle body from tilting or overturning due to excessive cargo. The auxiliary wheel 100 is arranged at the position between the front wheel and the rear wheel of the vehicle body, which is conducive to balancing the vehicle body as a whole, especially when there is no cargo, or when the weight of the cargo is unevenly distributed, it can provide an additional intermediate support point and enhance the lateral stability of the vehicle. At the moments when additional balancing assistance is required, such as turning, driving at low speed, or starting or stopping, the auxiliary wheel 100 is arranged at this position to achieve higher work efficiency.

[0083] In addition, being arranged at the above-mentioned position can ensure the overall aesthetics of the vehicle body.

[0084] It should be noted that the auxiliary wheel 100 is arranged at the above position and needs to have a steering function. This embodiment adds a steering function to the auxiliary wheel 100 through the solution of the omnidirectional wheel 2, so that the auxiliary wheel 100 can rotate with the two-wheeled vehicle.

[0085] In this embodiment, the two-wheeled vehicle also includes a control component, which is electrically connected to the drive component 3 of the auxiliary wheel 100; when the control component receives a first signal, the control component controls the drive component 3 to drive the bracket 1 to rotate, so that the bracket 1 drives the omnidirectional wheel 2 to move to the first position; when the control component receives a second signal, the control component controls the drive component 3 to drive the bracket 1 to rotate, so that the bracket 1 drives the omnidirectional wheel 2 to move to the second position.

[0086] The first signal indicates that the auxiliary wheel 100 needs to enter the auxiliary mode, and the second signal indicates that the auxiliary wheel 100 needs to enter the recovery mode. There are many ways to generate the first signal and the second signal. It can be a physical button provided on the vehicle body, which is electrically connected to the drive component 3 through a single or multiple physical buttons to directly control the operation of the drive component 3; it can also be a drive component 3 with a sound sensor, which controls the operation of the drive component 3 through voice interaction.

[0087] When the control component receives a specific first signal, the control component activates the driving component 3 to rotate the driving motor, thereby driving the bracket 1 to rotate along a predetermined path, and finally moving the omnidirectional wheel 2 to the first position, that is, Figure 5 Conversely, when the control component receives a second signal (e.g., low-speed driving, vehicle start-up, detection of a heavy load or excessive inclination, etc.), the same mechanism will be triggered, but the purpose is to adjust the omnidirectional wheel 2 to the second position, i.e. Figure 6 The two-wheeled vehicle has the function of interacting with the auxiliary wheel 100, and the position of the auxiliary wheel 100 can be switched according to the situation, so that the auxiliary wheel 100 can play the greatest role.

[0088] In this embodiment, the number of the bracket 1 and the omnidirectional wheel 2 are both one, and the bracket 1 and the omnidirectional wheel 2 are arranged on either side of the vehicle body; or, the number of the bracket 1 and the omnidirectional wheel 2 are both multiple, and at least one bracket 1 and the omnidirectional wheel 2 are arranged on both sides of the vehicle body.

[0089] The number of the auxiliary wheels 100 can be single or multiple. In this embodiment, two auxiliary wheels 100 are used, and the two auxiliary wheels 100 are respectively arranged on both sides of the vehicle body.

[0090] It should be noted that a single auxiliary wheel may not improve the stability of the vehicle body as significantly as a double auxiliary wheel when the vehicle is under extreme load or at high speed, especially when turning and making emergency avoidance. Therefore, this embodiment adopts a double auxiliary wheel structure, which can distribute the load more evenly, reduce the bias on the center of the vehicle body, and protect the vehicle body and auxiliary wheel structure.

[0091] In this embodiment, when there are multiple brackets 1 and omnidirectional wheels 2, the driving components 3 of the auxiliary wheel 100 are drivingly connected to the multiple brackets 1 respectively; or, the number of the driving components 3 corresponds to the number of the brackets 1, and each driving component 3 is drivingly connected to one bracket 1.

[0092] A plurality of supports 1 are controlled by one driving assembly 3 , or each driving assembly 3 controls one support 1 .

[0093] When the number of drive assemblies 3 is the same as the number of brackets 1, each drive assembly 3 is specifically connected to one bracket 1. This means that each bracket 1 is independently controlled, providing accuracy and response speed, which is suitable for situations where fine control is required or the load on both sides of the two-wheeled vehicle is uneven, and can ensure that each bracket 1 operates independently according to actual needs to optimize the support effect. When the number of drive assemblies 3 is less than the number of brackets 1, the movement of multiple brackets 1 is controlled simultaneously to reduce the complexity and cost of the drive assemblies 3, while still ensuring that all brackets 1 work together to complete the support task.

[0094] In summary, the auxiliary wheel 100 of the utility model improves the safety and control flexibility of the cargo-carrying two-wheeled vehicle. The omnidirectional wheel 2 provides a steering function for the auxiliary wheel 100 to improve safety and vehicle stability. The auxiliary wheel 100 realizes automatic position switching through the drive assembly 3 on the bracket 1. In the first position, the auxiliary wheel 100 is retracted to reduce resistance and energy consumption during high-speed driving, which is suitable for smooth road conditions and high-speed driving, and improves efficiency; in the second position, the auxiliary wheel 100 is reduced to the minimum, which enhances the ground adhesion and balance when carrying cargo or driving at low speed, especially on complex roads, starting, turning and loading conditions, effectively preventing rollover and ensuring driving safety.

[0095] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A training wheel, characterized in that: The auxiliary wheel comprises: A bracket, wherein the bracket has a first fixing position and a second fixing position arranged relatively to each other, wherein the first fixing position is used for connecting to a target vehicle body; An omnidirectional wheel, wherein the omnidirectional wheel is arranged at the second fixed position, and the omnidirectional wheel comprises a main wheel and a plurality of secondary wheels arranged in a ring shape along the outer contour of the main wheel, wherein the central axis of the main wheel faces a first direction, and the central axis of the secondary wheels faces a second direction, and the first direction and the second direction are arranged non-parallel.

2. The training wheel according to claim 1, characterized in that: The bracket includes at least one connecting plate, the connecting plate is provided with a connecting hole at the second fixing position, and the omnidirectional wheel is rotatably connected to the connecting hole through a connecting rod.

3. The training wheel according to claim 2, characterized in that: The number of the connecting plate is one, so as to form a single-sided bracket; The first fixed position of the connecting plate is connected to the target vehicle body, the omnidirectional wheel has a hub, and the bearing of the hub is connected to the second fixed position of the connecting plate through a connecting rod, so that the omnidirectional wheel is rotatably connected to the connecting plate.

4. The training wheel according to claim 2, characterized in that: The number of the connecting plates is two to form a bilateral bracket; The omnidirectional wheel has a hub, and the bearing of the hub is rotatably connected to the bilateral bracket through a connecting rod.

5. The training wheel according to claim 1, characterized in that: The first direction is perpendicular to the second direction; And / or, the secondary wheel comprises a first secondary wheel and a second secondary wheel, the radius of the first secondary wheel is larger than that of the second secondary wheel, and the first secondary wheel and the second secondary wheel are alternately arranged on the outer contour of the main wheel.

6. The training wheel according to claim 1, characterized in that: The bracket has a first end and a second end, and the omnidirectional wheel is mounted on the first end; The auxiliary wheel further comprises a driving assembly, the driving assembly being drivingly connected to the first end of the bracket; the first end has a first position relatively close to the driving assembly and a second position far away from the driving assembly; The driving assembly is capable of driving the first end of the bracket to switch between the first position and the second position.

7. A two-wheeled vehicle, characterized in that: The two-wheeled vehicle comprises the training wheels as claimed in any one of claims 1 to 6; The number of the bracket and the omnidirectional wheel is one, and the bracket and the omnidirectional wheel are arranged on either side of the vehicle body; Alternatively, there are multiple brackets and omnidirectional wheels, and at least one bracket and at least one omnidirectional wheel are disposed on both sides of the vehicle body.

8. The two-wheeled vehicle according to claim 7, characterized in that: When there are multiple brackets and omnidirectional wheels, the driving assembly of the auxiliary wheel is drivingly connected to the multiple brackets respectively; Alternatively, the number of the driving components corresponds to the number of the brackets, and each of the driving components is drivingly connected to a bracket.

9. The two-wheeled vehicle according to claim 7, characterized in that: The two-wheeled vehicle is a cargo-carrying two-wheeled vehicle, and the cargo-carrying two-wheeled vehicle comprises: Vehicle body; A shelf, the shelf being arranged on the vehicle body; The auxiliary wheel is arranged at a position of the vehicle body corresponding to the shelf, or the auxiliary wheel is arranged at a position between the front wheel and the rear wheel of the vehicle body.

10. The two-wheeled vehicle according to claim 7, characterized in that: The two-wheeled vehicle further comprises a control assembly, wherein the control assembly is electrically connected to the driving assembly of the auxiliary wheel; When receiving the first signal, the control component controls the driving component to drive the bracket to rotate, so that the bracket drives the omnidirectional wheel to move to the first position; When receiving the second signal, the control component controls the driving component to drive the bracket to rotate, so that the bracket drives the omnidirectional wheel to move to the second position.

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