A two-wheeled vehicle head-raising exercise assisting device

Abstract

The utility model discloses a two-wheeled vehicle head lifting exercise auxiliary device, including the frame of frame structure, friction cylinder and load mechanism, the friction cylinder is connected with the frame through a cylinder frame, the friction cylinder is rotatably connected with two connecting arms through the support shaft, the load mechanism is located one side of friction cylinder, it has a load transmission shaft, and the load transmission shaft's axis line is parallel with the axis line of support shaft, is equipped with a sprocket in the corresponding one end of support shaft and load transmission shaft respectively, is wound with a transmission chain on two sprockets. The utility model whole structure is simple, and the weight is greatly reduced, and the load application does not need to supply energy, thereby making mobile and using more convenient, and can adjust the load size to adapt to the head lifting exercise of different personnel, vehicle.

Description

Technical Field

[0001] This utility model relates to the field of vehicle movement skills training technology, and in particular to an auxiliary device for practicing wheelies on a two-wheeled vehicle. Background Technology

[0002] Two-wheeled vehicles (such as electric bicycles or motorcycles) have been widely accepted due to their advantages such as low price, speed, and low operating costs. For some special groups, such as stunt performers, racing enthusiasts, and motorcycle enthusiasts, more and more people, especially young people, enjoy driving performance vehicles (such as off-road vehicles and racing cars) and performing wheelie maneuvers (i.e., the rear wheels of the vehicle are on the ground while the front wheels are raised).

[0003] However, wheelies are extremely dangerous and require extensive practice to achieve proficiency and ensure the safety of oneself and others. Mastering wheelies on a two-wheeled bicycle typically requires professional training, necessitating the use of wheelie assistive devices. Currently available assistive devices are complex in structure and extremely heavy, weighing approximately 2-3 tons, to withstand the load of wheelies. This makes them very difficult to move, requiring cranes or forklifts. Furthermore, existing assistive devices usually have a fixed load capacity, making it impossible to adjust the load for different vehicles or individuals, resulting in poor adaptability during practice.

[0004] Therefore, there is an urgent need to provide an auxiliary practice device that is simple in structure, easy to transport, and has a wide range of applications. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to solve the problems of the existing wheelie exercise auxiliary device being structurally complex, heavy, and poorly adaptable, and to provide a two-wheeled vehicle wheelie exercise training auxiliary device with a simple overall structure, significantly reduced weight, and no power supply required for load application, thereby making it more convenient to move and use, and the load size can be adjusted to adapt to wheelie exercise training for different people and vehicles.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a two-wheeled vehicle wheelie exercise auxiliary device, characterized in that: it includes a frame structure, a friction roller, and a load mechanism; the friction roller is connected to the frame through a roller frame, wherein the roller frame has two vertically arranged connecting arms, the friction roller is rotatably connected to the two connecting arms through a support shaft, and the friction roller is fixedly connected to the support shaft and can rotate synchronously;

[0007] The load mechanism is located on one side of the friction roller and has a load drive shaft, the axis of which is parallel to the axis of the support shaft. A sprocket is provided at one end of the support shaft and the load drive shaft respectively, and a drive chain is wound around the two sprockets. The load mechanism can apply a load to the friction roller.

[0008] Furthermore, the load mechanism includes a piston-type cylinder body, a piston, and a connecting rod. One end of the cylinder body is an open end, one end of the connecting rod is rotatably connected to the piston, and the other end extends out from the open end of the cylinder body. An intake passage and an exhaust passage are provided at the closed end of the cylinder body, and an intake control mechanism and an exhaust control mechanism are provided in the intake passage and the exhaust passage.

[0009] It also includes a crankcase, the open end of the cylinder block is connected to the crankcase, and the end of the connecting rod away from the piston extends into the crankcase. A crankshaft is provided in the crankcase, and the end of the connecting rod extending into the crankcase is connected to the crankshaft; the end of the load drive shaft away from the sprocket is connected to one end of the crankshaft.

[0010] Furthermore, both the intake control mechanism and the exhaust control mechanism employ one-way valves.

[0011] Furthermore, both the intake control mechanism and the exhaust control mechanism employ valve stems. One end of the intake passage and the exhaust passage are connected to the inner cavity of the valve stem, and the other end passes through one side of the cylinder block. The valve stem is vertically positioned and correspondingly passes through the intake passage and the exhaust passage, allowing the intake passage and the exhaust passage to be opened or closed. A return spring is provided between the valve stem and the cylinder block. In the initial state, under the action of the return spring, the two valve stems correspondingly close the intake passage and the exhaust passage.

[0012] It also includes a valve shaft, on which a cam is provided for each of the two valve stems, and the cam is always in contact with the end of the valve stem; a drive gear is provided at the end of the crankshaft away from the load drive shaft, and a driven gear is provided on the valve shaft. The drive gear and the driven gear mesh. When the crankshaft drives the valve shaft to rotate, it can drive the cam to rotate synchronously, and push the valve stem to move against the force of the return spring through the two cams, so that the intake passage and exhaust passage are alternately opened or closed.

[0013] Furthermore, a gearbox is provided between the crankshaft and the load drive shaft, wherein the input shaft of the gearbox is connected to the crankshaft and the output shaft is connected to the load drive shaft.

[0014] Furthermore, the load mechanism employs a 2-stroke or 4-stroke internal combustion engine, and is integrated with a crankcase and gearbox.

[0015] Furthermore, the roller frame includes an upper connecting frame and a lower connecting frame, which are fixedly connected to the upper and lower sides of the machine frame, respectively, and the connecting arm is fixedly connected to the upper connecting frame; through holes are provided on the upper connecting frame and the upper side of the machine frame corresponding to the position of the friction roller.

[0016] Furthermore, a support plate is also laid on the upper side of the frame, and the support plate is also provided with through holes corresponding to the position of the friction roller. The upper side of the friction roller is flush with the upper side of the support plate or located below the upper side of the support plate.

[0017] Furthermore, it also includes an extension frame located on the side of the friction roller away from the load mechanism and fixedly or slidably connected to the frame; the support plate covers the extension frame.

[0018] Furthermore, two limiting cables are provided on the bearing plate. One end of the two limiting cables is fixed to the bearing plate, frame, or extension frame, and the other end is used to fix to the front wheel or front axle of the motorcycle.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The overall structure is simple. It uses a cylinder block and transmission structure (similar to an internal combustion engine structure) to apply load to the friction roller, which can significantly reduce the weight of the entire auxiliary device to 150-300kg. It can be moved by 3-4 people, making the entire auxiliary device easier to move and transport.

[0021] 2. In this solution, the application of load by the friction roller rotation does not require external energy, thus enabling the auxiliary device to be used anywhere, especially outdoors, where it is more convenient to use.

[0022] 3. By setting up a gearbox, the load on the friction roller can be adjusted to accommodate different personnel and vehicles for practice, especially for beginners, which can further improve safety. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model with the support plate omitted.

[0024] In the diagram: 1—frame, 2—friction roller, 3—load mechanism, 4—roller frame, 5—sprocket, 6—drive chain. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Example: See Figure 1A two-wheeled vehicle wheelie training aid includes a frame 1, a friction roller 2, and a load mechanism 3. The friction roller 2 is connected to the frame 1 via a roller frame 4, wherein the roller frame 4 has two vertically arranged connecting arms. The friction roller 2 is rotatably connected to the two connecting arms via a support shaft, and the friction roller 2 is fixedly connected to the support shaft and can rotate synchronously. The roller frame 4 includes an upper connecting frame and a lower connecting frame, which are fixedly connected to the upper and lower sides of the frame 1, respectively. The connecting arms are fixedly connected to the upper connecting frame. In implementation, the two ends of the support shaft are connected to the connecting arms via bearings, thereby avoiding direct friction between the support shaft and the connecting arms and improving the service life of the entire aid. Through holes are provided on the upper connecting frame and the frame 1 corresponding to the positions of the friction roller 2.

[0029] In this design, a support plate is also laid on the upper side of the frame 1. The support plate has through holes corresponding to the position of the friction roller 2. The upper side of the friction roller 2 is flush with or below the upper side of the support plate. During assisted practice, the two-wheeled vehicle is placed on the support plate, and the rear wheel of the vehicle is placed on the friction roller 2. Then, the vehicle is started for practice. An extension frame is also included, located on the side of the friction roller 2 away from the load mechanism 3, and is fixedly or slidably connected to the frame 1; the support plate covers the extension frame. This allows the design to adapt to motorcycles of different lengths and minimizes the overall volume of the frame 1 for easy transport. Two limiting cables are provided on the support plate. One end of each cable is fixed to the support plate, frame 1, or extension frame, and the other end is used to fix the motorcycle's front wheel or front axle; this further improves safety during assisted practice.

[0030] In implementation, the load mechanism 3 is located on one side of the friction roller 2, and it has a load drive shaft, the axis of which is parallel to the axis of the support shaft. A sprocket 5 is provided at one end of each of the support shaft and the load drive shaft, and a drive chain 6 is wound around the two sprockets 5. The drive chain 6 enables the two sprockets 5 to rotate synchronously, thereby applying a load to the friction roller 2 through the load mechanism 3. In this scheme, the load mechanism 3 includes a piston-type cylinder body, a piston, and a connecting rod. One end of the cylinder body is an open end, one end of the connecting rod is rotatably connected to the piston, and the other end extends from the open end of the cylinder body. An intake passage and an exhaust passage are provided at the closed end of the cylinder body, and an intake control mechanism and an exhaust control mechanism are provided in the intake passage and the exhaust passage. It also includes a crankcase, the open end of the cylinder block is connected to the crankcase, and the end of the connecting rod away from the piston extends into the crankcase. A crankshaft is provided in the crankcase, and the end of the connecting rod extending into the crankcase is connected to the crankshaft. The end of the load drive shaft away from the sprocket 5 is connected to one end of the crankshaft.

[0031] In one implementation, both the intake control mechanism and the exhaust control mechanism employ one-way valves, preferably adjustable one-way valves. This allows the intake and exhaust flow rates and other parameters to be adjusted by regulating the intake and exhaust openings, thereby regulating the load.

[0032] In another implementation, both the intake and exhaust control mechanisms employ valve stems. One end of the intake and exhaust passages is connected to the inner cavity of the valve stem, while the other end penetrates one side of the cylinder block. The valve stem is vertically positioned and correspondingly penetrates the intake and exhaust passages, allowing the intake and exhaust passages to be opened or closed. A return spring is provided between the valve stem and the cylinder block. In the initial state, under the action of the return spring, the two valve stems correspondingly close the intake and exhaust passages.

[0033] It also includes a valve shaft, wherein the valve shaft and the two valve stems are located on the same plane. A cam is provided on the valve shaft corresponding to each of the two valve stems, and the cams are always in contact with the ends of the valve stems. A drive gear is provided at the end of the crankshaft away from the load drive shaft, and a driven gear is provided on the valve shaft. The drive gear and the driven gear mesh. When the crankshaft drives the valve shaft to rotate, it can drive the cams to rotate synchronously, and through the two cams, push the valve stems to move against the force of the return spring, causing the intake and exhaust passages to open or close alternately.

[0034] As an optimization, a gearbox is also provided between the crankshaft and the load drive shaft. The input shaft of the gearbox is connected to the crankshaft, and the output shaft is connected to the load drive shaft. In this way, the load can be adjusted according to different needs.

[0035] As a specific embodiment, in this solution, the load mechanism 3 adopts a 2-stroke or 4-stroke internal combustion engine, and is integrated with the crankcase and gearbox; thus, the assembly of the entire auxiliary device is more convenient and the stability is better.

[0036] This design features a simple overall structure, employing a piston-type cylinder block and transmission structure (similar to an internal combustion engine). The load is transmitted via a drive shaft, gearbox, and crankshaft, driving the piston in the reverse direction. During this movement, the cylinder block performs intake and exhaust, thus applying a load to the friction roller 2. This design significantly reduces the weight of the entire auxiliary device to 150-300 kg, allowing for movement by 3-4 people, making it much easier to move and transport. Furthermore, the load application requires no external energy, enabling the auxiliary device to be used anywhere, especially outdoors. Additionally, the gearbox allows for load adjustment, accommodating different personnel and vehicles, particularly improving safety for beginners.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.

Claims

1. A two-wheeled vehicle wheelie exercise aid, characterized in that: The device includes a frame structure, a friction roller, and a load mechanism. The friction roller is connected to the frame via a roller frame, wherein the roller frame has two vertically arranged connecting arms, and the friction roller is rotatably connected to the two connecting arms via a support shaft. The friction roller is also fixedly connected to the support shaft and can rotate synchronously. The load mechanism is located on one side of the friction roller and has a load drive shaft, the axis of which is parallel to the axis of the support shaft. A sprocket is provided at one end of the support shaft and the load drive shaft respectively, and a drive chain is wound around the two sprockets. The load mechanism can apply a load to the friction roller.

2. The auxiliary device for practicing wheelie on a two-wheeled vehicle according to claim 1, characterized in that: The load mechanism includes a piston-type cylinder body, a piston, and a connecting rod. One end of the cylinder body is an open end, one end of the connecting rod is rotatably connected to the piston, and the other end extends out from the open end of the cylinder body. An intake passage and an exhaust passage are provided at the closed end of the cylinder body, and an intake control mechanism and an exhaust control mechanism are provided in the intake passage and the exhaust passage. It also includes a crankcase, the open end of the cylinder block is connected to the crankcase, and the end of the connecting rod away from the piston extends into the crankcase. A crankshaft is provided in the crankcase, and the end of the connecting rod extending into the crankcase is connected to the crankshaft; the end of the load drive shaft away from the sprocket is connected to one end of the crankshaft.

3. The auxiliary device for practicing wheelie on a two-wheeled vehicle according to claim 2, characterized in that: Both the intake control mechanism and the exhaust control mechanism use one-way valves.

4. The auxiliary device for practicing wheelie on a two-wheeled vehicle according to claim 2, characterized in that: Both the intake and exhaust control mechanisms employ valve stems. One end of the intake and exhaust passages is connected to the inner cavity of the valve stem, while the other end penetrates one side of the cylinder block. The valve stem is vertically positioned and correspondingly penetrates the intake and exhaust passages, allowing the intake and exhaust passages to be opened or closed. A return spring is provided between the valve stem and the cylinder block. In the initial state, under the action of the return spring, the two valve stems correspondingly close the intake and exhaust passages. It also includes a valve shaft, on which a cam is provided for each of the two valve stems, and the cam is always in contact with the end of the valve stem; a drive gear is provided at the end of the crankshaft away from the load drive shaft, and a driven gear is provided on the valve shaft. The drive gear and the driven gear mesh. When the crankshaft drives the valve shaft to rotate, it can drive the cam to rotate synchronously, and push the valve stem to move against the force of the return spring through the two cams, so that the intake passage and exhaust passage are alternately opened or closed.

5. The auxiliary device for practicing wheelie on a two-wheeled vehicle according to claim 3 or 4, characterized in that: A gearbox is also provided between the crankshaft and the load drive shaft. The input shaft of the gearbox is connected to the crankshaft, and the output shaft is connected to the load drive shaft.

6. The auxiliary device for practicing wheelie on a two-wheeled vehicle according to claim 5, characterized in that: The load mechanism is an integral unit consisting of a 2-stroke or 4-stroke internal combustion engine, a crankcase, and a gearbox.

7. The auxiliary device for practicing wheelie on a two-wheeled vehicle according to claim 1, characterized in that: The roller frame includes an upper connecting frame and a lower connecting frame, which are fixedly connected to the upper and lower sides of the machine frame, respectively. The connecting arm is fixedly connected to the upper connecting frame. Through holes are provided on the upper connecting frame and the upper side of the machine frame, corresponding to the position of the friction roller.

8. The auxiliary device for practicing wheelie on a two-wheeled vehicle according to claim 7, characterized in that: A support plate is also laid on the upper side of the frame. The support plate has through holes at the position corresponding to the friction roller. The upper side of the friction roller is flush with the upper side of the support plate or located below the upper side of the support plate.

9. The auxiliary device for practicing wheelie on a two-wheeled vehicle according to claim 8, characterized in that: It also includes an extension frame located on the side of the friction roller away from the load mechanism and fixedly or slidably connected to the frame; the support plate covers the extension frame.

10. The auxiliary device for practicing wheelie on a two-wheeled vehicle according to claim 8, characterized in that: Two limiting cables are provided on the bearing plate. One end of the two limiting cables is fixed to the bearing plate, frame or extension frame, and the other end is used to fix to the front wheel or front wheel axle of the motorcycle.

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