A booster and a bicycle using the same

Abstract

The application discloses a booster and a bicycle applying the same, and belongs to the technical field of bicycle accessories, and solves the problem that the existing booster is prone to the situation that the friction wheel slips with the wheel of the bicycle, cannot well realize power transmission and damages the tire of the bicycle. The booster is applied to the bicycle and comprises a friction wheel, a transmission structure and a driving assembly, the driving assembly is connected with the friction wheel, and the transmission structure is connected with the friction wheel. When the booster is used, the friction wheel is pressed against or separated from the wheel of the bicycle under the action of the transmission structure; when the friction wheel is in the pressed state with the wheel of the bicycle, the driving assembly drives the rotation of the wheel by driving the friction wheel.

Description

Technical Field

[0001] This invention belongs to the field of bicycle accessory technology, specifically relating to a power booster and a bicycle using it. Background Technology

[0002] Bicycles are an environmentally friendly mode of transportation. With the development of technology, in order to meet the needs of riding comfort and saving effort, power-assist bicycles were developed. Applying power-assist bicycles to bicycles makes riding more time-saving and effortless for users.

[0003] However, the pressure of existing boosters is relatively low, and they can only perform a simple pressing function. The pressing is not reliable and the installation is troublesome. It is easy for the friction wheel to slip on the bicycle wheel, which cannot achieve good power transmission and damages the bicycle tire. Summary of the Invention

[0004] The purpose of this invention is to provide a power booster and a bicycle using the same, which solves the problem that existing power boosters are prone to slippage between the friction wheel and the bicycle wheel, resulting in poor power transmission and damage to the bicycle tires.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A power booster for use on a bicycle includes a friction wheel, a transmission structure, and a drive assembly. The drive assembly is connected to the friction wheel, and the transmission structure is connected to the friction wheel. In use, the friction wheel is pressed against or separated from the bicycle wheel by the transmission structure. When the friction wheel is pressed against the bicycle wheel, the drive assembly drives the friction wheel, thereby causing the wheel to rotate.

[0007] In some embodiments, the transmission structure includes a housing and a transmission mechanism disposed within the housing, the transmission mechanism acting on the friction wheel.

[0008] In some embodiments, the transmission mechanism includes a power component and a transmission assembly connected to the friction wheel, wherein the power component drives the transmission assembly to press or separate the friction wheel from the bicycle wheel.

[0009] In some embodiments, the transmission assembly includes an outer gear ring and a first gear mechanism and a second gear mechanism disposed within the outer gear ring. The power component is connected to the second gear mechanism through the first gear mechanism. The second gear mechanism is connected to the friction wheel. The power component drives the first gear mechanism to rotate within the outer gear ring while simultaneously driving the second gear mechanism to rotate, thereby achieving the pressing or separation of the friction wheel from the bicycle wheel.

[0010] In some embodiments, the transmission assembly further includes at least one third gear mechanism disposed between the first gear mechanism and the second gear mechanism.

[0011] In some embodiments, the transmission assembly further includes an output component, wherein the first gear mechanism and the second gear mechanism are both connected to one end of the output component, and the other end of the output component is connected to the friction wheel; in use, the first gear mechanism drives the third gear mechanism to rotate, and the third gear mechanism drives the second gear mechanism to rotate within the external gear ring, thereby driving the output component to rotate through the second gear mechanism, and thus enabling the friction wheel to press against or separate from the bicycle wheel through the output component.

[0012] In some embodiments, the transmission assembly includes a worm, a worm wheel, and a connecting shaft. The power component is connected to the worm, the worm meshes with the worm wheel, one end of the connecting shaft passes through the worm wheel, and the other end of the connecting shaft is connected to the friction wheel. The power component drives the worm to rotate while simultaneously driving the worm wheel to rotate, thereby enabling the friction wheel to press against or separate from the bicycle wheel through the connecting shaft.

[0013] In some embodiments, the transmission mechanism further includes a control element, through which the transmission assembly is connected to the friction wheel.

[0014] In some embodiments, the control element includes a heat sink housing, and the transmission assembly is connected to the friction wheel via the heat sink housing.

[0015] In some embodiments, the heat dissipation housing includes a first housing and a second housing connected to the first housing, one side of the second housing is connected to the friction wheel, and the other side of the second housing is connected to the transmission structure.

[0016] In some embodiments, the control component further includes a controller disposed within the heat dissipation housing and connected to the power component.

[0017] In some embodiments, the control element further includes a grille assembly and a fan shroud disposed on the heat dissipation housing, the fan shroud and the heat dissipation housing together forming a heat dissipation channel.

[0018] In some embodiments, the friction wheel is sleeved on the outer periphery of the drive assembly.

[0019] Another technical solution of the present invention is as follows: a bicycle, including the aforementioned booster, frame and power module, wherein the booster and the power module are both disposed on the frame.

[0020] Compared with the prior art, the present invention achieves the pressing or separation of the friction wheel and the bicycle wheel through a transmission structure. When the friction wheel and the bicycle wheel are pressed together, the drive component drives the friction wheel and thus drives the rotation of the wheel. The booster can realize power transmission and prevent the friction wheel from slipping on the wheel. Moreover, the transmission structure has high pressure and is firm. After pressing the wheel, the friction wheel will not loosen. Furthermore, the booster is easy to install and does not damage the bicycle tire. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an assist device provided in Embodiment 1 of the present invention;

[0022] Figure 2 This is an exploded view of an amplifier provided in Embodiment 1 of the present invention;

[0023] Figure 3 This is an exploded view of the transmission structure in a booster provided in Embodiment 1 of the present invention;

[0024] Figure 4 This is another exploded view of the transmission structure in a booster provided in Embodiment 1 of the present invention;

[0025] Figure 5 This is an exploded view of a transmission component in a booster provided in Embodiment 1 of the present invention;

[0026] Figure 6 This is an exploded view of a control component in a booster provided in Embodiment 1 of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of a control component in a booster provided in Embodiment 1 of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of an assist device provided in Embodiment 2 of the present invention;

[0029] Figure 9 This is an exploded view of an amplifier provided in Embodiment 2 of the present invention;

[0030] Figure 10 This is an exploded view of a control component in a booster provided in Embodiment 2 of the present invention;

[0031] Figure 11 This is a schematic diagram of the structure of a bicycle provided in Embodiment 3 of the present invention.

[0032] In the diagram, 1. Friction wheel, 2. Transmission structure, 21. Housing, 22. Transmission mechanism, 221. Power component, 222. Transmission assembly, 2221. First gear mechanism, 22211. First planetary carrier, 22212. First sun gear, 22213. First planetary gear assembly, 2222. Second gear mechanism, 22221. Second planetary carrier, 22222. Second sun gear, 22223. Second planetary gear assembly, 2223. External gear ring, 2224. Three-gear mechanism, 22241. Third planetary carrier, 22242. Third sun gear, 22243. Third planetary gear assembly, 2225. Output component, 2226. Worm gear, 2227. Worm wheel, 2228. Connecting shaft, 223. Control component, 2231. Heat sink housing, 22311. First housing, 22312. Second housing, 2232. Controller, 2233. Grille assembly, 2234. Fan cover, 2235. Heat dissipation channel, 3. Drive assembly. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0034] In the description of this invention, it should be clarified that the terms "vertical," "lateral," "longitudinal," "front," "rear," "left," "right," "up," "down," and "horizontal," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are merely for the convenience of describing this invention. They do not imply that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this invention. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Example 1

[0036] Embodiment 1 of the present invention provides a power booster, which is applied to a bicycle, such as... Figure 1As shown, it includes a friction wheel 1, a transmission structure 2, and a drive assembly 3. The drive assembly 3 is connected to the friction wheel 1, and the transmission structure 2 is connected to the friction wheel 1. In use, the friction wheel 1 is pressed against or separated from the bicycle wheel under the action of the transmission structure 2. When the friction wheel 1 is pressed against the bicycle wheel, the drive assembly 3 drives the friction wheel 1, thereby driving the rotation of the bicycle wheel.

[0037] After adopting the above solution, the friction wheel 1 is pressed or separated from the bicycle wheel through the transmission structure 2. When the friction wheel 1 is pressed with the bicycle wheel, the drive component 3 drives the friction wheel 1 and thus drives the rotation of the wheel. The booster of embodiment 1 can realize power transmission and prevent the friction wheel 1 from slipping with the wheel. Moreover, the transmission structure 2 of embodiment 1 has high pressure and is firm. After pressing the wheel, the friction wheel 1 will not loosen. In addition, the booster is easy to install and does not damage the bicycle tire.

[0038] In the specific implementation process of this embodiment 1, such as Figure 2 As shown, the transmission structure 2 includes a housing 21 and a transmission mechanism 22 disposed within the housing 21, the transmission mechanism 22 acting on the friction wheel 1.

[0039] More specifically, the transmission mechanism 22 is located inside the housing 21. The housing 21 protects the transmission mechanism 22 and prevents damage to its internal components during installation. At the same time, the installation of the housing 21 also prevents the internal components from getting wet in rainy weather.

[0040] In the specific implementation process of this embodiment 1, such as Figure 2 As shown, the transmission mechanism 22 includes a power component 221 and a transmission assembly 222 connected to the friction wheel 1. The power component 221 drives the transmission assembly 222 to press or separate the friction wheel 1 from the bicycle wheel.

[0041] More specifically, the power component 221 provides power to the transmission assembly 222, enabling the transmission assembly 222 to operate and thereby press or separate the friction wheel 1 from the bicycle wheel.

[0042] In the specific implementation process of this embodiment 1, such as Figure 3 and Figure 4As shown, the transmission assembly 222 includes an outer gear ring 2223 and a first gear mechanism 2221 and a second gear mechanism 2222 disposed within the outer gear ring 2223. The power component 221 is connected to the second gear mechanism 2222 through the first gear mechanism 2221. The second gear mechanism 2222 is connected to the friction wheel 1. The power component 221 drives the first gear mechanism 2221 to rotate within the outer gear ring 2223 while simultaneously driving the second gear mechanism 2222 to rotate, thereby achieving the pressing or separation of the friction wheel 1 from the bicycle wheel.

[0043] More specifically, the power component 221 is connected to the first gear mechanism 2221, enabling the power component 221 to drive the first gear mechanism 2221. The second gear mechanism 2222 cooperates with the first gear mechanism 2221 to adjust the position of the control component 223 in the booster. Simultaneously, in this embodiment 1, the first gear mechanism 2221 and the second gear mechanism 2222 are positioned within the external gear ring 2223, allowing the first gear mechanism 2221 and the second gear mechanism 2222 to reduce their rotational speed and increase their torque through the external gear ring 2223. This embodiment 1 features a continuous transmission process, a simple structure, and low cost, making it worthy of widespread promotion and use.

[0044] Furthermore, the first gear mechanism 2221 includes a first planetary carrier 22211, a first sun gear 22212, and at least three sets of first planetary gear assemblies 22213. The first sun gear 22212 is disposed through the center of the first planetary carrier 22211. The first sun gear 22212 and the external gear ring 2223 are both connected to each set of first planetary gear assemblies 22213, and each set of first planetary gear assemblies 22213 is also connected to the second gear mechanism 2222. The first planetary carrier 22211 is used to fix the first sun gear 22212 and each set of first planetary gear assemblies 22213, so that their overall position does not change. The first sun gear 22212 drives each set of first planetary gear assemblies 22213 to rotate, and each set of first planetary gear assemblies 22213 is also meshed with the external gear ring 2223.

[0045] Furthermore, the first planetary gear assembly 22213 is configured in three groups, such as... Figure 5 As shown; each first planetary gear assembly 22213 includes a first planetary gear body and a first planetary gear shaft. The first planetary gear body is connected to the second gear mechanism 2222 through the first planetary gear shaft. The external gear ring 2223 and the first sun gear 22212 are both meshed with the first planetary gear body. In use, the power component 221 drives the first sun gear 22212 to rotate, and the first sun gear 22212 drives the first planetary gear body to rotate within the external gear ring 2223.

[0046] Furthermore, the size of the first sun gear 22212 is larger than the size of the first planet gear body, so the first sun gear 22212 will drive the first planet gear body to rotate faster, while the first planet gear body will decelerate through the meshing of the external gear ring 2223, and both the first planet gear body and the first planet gear shaft will rotate and revolve simultaneously.

[0047] Furthermore, the second gear mechanism 2222 includes a second planetary carrier 22221, a second sun gear 22222, and at least three sets of second planetary gear assemblies 22223. The second sun gear 22222 and each set of second planetary gear assemblies 22223 are all disposed on the second planetary carrier 22221 on a side away from the first gear mechanism 2221. The second sun gear 22222 and the external gear ring 2223 are both connected to each set of second planetary gear assemblies 22223. The second planetary carrier 22221 is connected to the first planetary gear assembly 22213. The second planetary carrier 22221 is used to fix the second sun gear 22222 and each set of second planetary gear assemblies 22223, so that their overall position does not change. At the same time, the second planetary carrier 22221 is also used to drive the second sun gear 22222 to rotate, thereby driving each set of second planetary gear assemblies 22223 to rotate through the second sun gear 22222.

[0048] Furthermore, the second planetary gear assembly 22223 is configured with six groups, such as... Figure 5 As shown; each second planetary gear assembly 22223 includes a second planetary gear body and a second planetary gear shaft, with the second planetary gear body fixedly connected to the second planetary gear shaft; the external gear ring 2223 and the second sun gear 22222 are both meshed with the second planetary gear body. The second sun gear 22222 drives the second planetary gear body and the second planetary gear shaft to rotate, while the second planetary gear body also meshes with the external gear ring 2223, causing the rotational speed of the second planetary gear shaft to decrease; both the second planetary gear body and the second planetary gear shaft rotate and revolve simultaneously.

[0049] In the specific implementation process of this embodiment 1, such as Figures 3-5 As shown, the transmission assembly 222 further includes at least one third gear mechanism 2224, which is disposed between the first gear mechanism 2221 and the second gear mechanism 2222.

[0050] More specifically, the third gear mechanism 2224 is used to transmit the power of the first gear mechanism 2221 to the second gear mechanism 2222, while continuously reducing the power.

[0051] Furthermore, the number of third gear mechanisms 2224 is set to one; the third gear mechanism 2224 includes a third planetary carrier 22241, a third sun gear 22242, and at least three sets of third planetary gear assemblies 22243. The third sun gear 22242 and each set of third planetary gear assemblies 22243 are all disposed on the third planetary carrier 22241 on the side away from the first gear mechanism 2221; the third sun gear 22242 and the external gear ring 2223 are both connected to each set of third planetary gear assemblies 22243; the third planetary carrier 22241 is connected to the first planetary gear assembly 22213. The third planetary carrier 22241 is used to fix the third sun gear 22242 and each set of third planetary gear assemblies 22243 so that their overall position does not change; at the same time, the third planetary carrier 22241 is also used to drive the third sun gear 22242 to rotate, thereby driving each set of third planetary gear assemblies 22243 to rotate through the third sun gear 22242.

[0052] Furthermore, in Embodiment 1 of the present invention, the third planetary gear assembly 22243 is configured as six groups; each group of the third planetary gear assembly 22243 includes a third planetary gear body and a third planetary gear shaft, the third planetary gear body and the third planetary gear shaft being fixedly connected; the external gear ring 2223 and the third sun gear 22242 are both meshed with the third planetary gear body; the third planetary gear shaft is engaged with the second planetary carrier 22221; in use, the first planetary assembly 22213 drives the third planetary carrier 22241 to rotate, and through the third sun gear 22242 drives the third planetary gear body to rotate within the external gear ring 2223. The third sun gear 22242 drives the third planetary gear body and the third planetary gear shaft to rotate, while the third planetary gear body also meshes with the external gear ring 2223, thereby reducing the rotational speed of the third planetary gear shaft; both the third planetary gear body and the third planetary gear shaft rotate and revolve simultaneously.

[0053] In the specific implementation process of this embodiment 1, such as Figures 3-5 As shown, the transmission assembly 222 also includes an output component 2225. The first gear mechanism 2221 and the second gear mechanism 2222 are both connected to one end of the output component 2225, and the other end of the output component 2225 is connected to the friction wheel 1. In use, the first gear mechanism 2221 drives the third gear mechanism 2224 to rotate, and the third gear mechanism 2224 drives the second gear mechanism 2222 to rotate within the outer gear ring 2223. In turn, the second gear mechanism 2222 drives the output component 2225 to rotate, thereby enabling the friction wheel 1 to press against or separate from the bicycle wheel through the output component 2225.

[0054] More specifically, the second planetary carrier 22221 has a first through hole, and the third planetary carrier 22241 has a second through hole. One end of the first planetary gear shaft is inserted into the second through hole, and the other end is fixedly connected to the first planetary gear body. One end of the third planetary gear shaft is inserted into the first through hole, and the other end is fixedly connected to the third planetary gear body. Through the mating connection of the shaft and the hole, the first planetary gear shaft can drive the third planetary carrier 22241 to rotate, and the third planetary gear shaft can drive the second planetary carrier 22221 to rotate. In turn, the second sun gear 22222 drives the second planetary gear body to rotate within the external gear ring 2223, and then drives the output component 2225 to rotate via the second planetary gear shaft.

[0055] Furthermore, the output component 2225 is a flange, which is connected to the control component 223.

[0056] In the specific implementation process of this embodiment 1, such as Figure 6 As shown, the transmission mechanism 22 also includes a control component 223, and the transmission assembly 222 is connected to the friction wheel 1 through the control component 223.

[0057] More specifically, one end of the control component 223 is connected to the transmission assembly 222, and the other end of the control component 223 is connected to the friction wheel 1. The power component 221 drives the first gear mechanism 2221 to rotate in the outer gear ring 2223, while driving the second gear mechanism 2222 to rotate, thereby adjusting the position of the control component 223. By adjusting the position of the control component 223, the friction wheel 1 can be pressed against or separated from the bicycle wheel.

[0058] In the specific implementation process of this embodiment 1, such as Figure 6 As shown, the control component 223 includes a heat dissipation housing 2231, and the transmission component 222 is connected to the friction wheel 1 through the heat dissipation housing 2231.

[0059] More specifically, the control component 223 includes a heat dissipation housing 2231. One end of the heat dissipation housing 2231 is connected to the transmission component 222, and the other end of the heat dissipation housing 2231 is connected to the friction wheel 1. The power component 221 drives the first gear mechanism 2221 to rotate in the outer gear ring 2223, while simultaneously driving the second gear mechanism 2222 to rotate, thereby adjusting the position of the heat dissipation housing 2231. By adjusting the position of the heat dissipation housing 2231, the friction wheel 1 can be pressed against or separated from the bicycle wheel.

[0060] In the specific implementation of this embodiment 1, the heat dissipation housing 2231 includes a first housing 22311 and a second housing 22312 connected to the first housing 22311. One side of the second housing 22312 is connected to the friction wheel 1, and the other side of the second housing 22312 is connected to the transmission structure 2.

[0061] In the specific implementation process of this embodiment 1, such as Figure 6 As shown, the control component 223 also includes a controller 2232, which is located inside the heat dissipation housing 2231 and connected to the power component 221.

[0062] More specifically, the controller 2232 is connected to the power component 221. The controller 2232 controls the switching of the power component 221, thereby controlling the start and stop of the transmission assembly 222.

[0063] Furthermore, the controller 2232 is housed within a heat dissipation housing 2231, which is composed of the first housing 22311 and the second housing 22312. The heat dissipation housing 2231 protects the controller 2232 and dissipates heat from it.

[0064] Furthermore, the first housing 22311 and the second housing 22312 are detachably connected, specifically by a snap-fit, slot, or other connection method such as screws, bolts, etc.

[0065] In the specific implementation process of this embodiment 1, such as Figure 7 As shown, the control component 223 also includes a grille assembly 2233 and a fan shroud 2234 disposed on the heat dissipation housing 2231, and the fan shroud 2234 and the heat dissipation housing 2231 together form a heat dissipation channel 2235.

[0066] More specifically, the grille assembly 2233 and the fan shroud 2234 are mounted on the heat dissipation housing 2231, so that the fan shroud 2234 and the heat dissipation housing 2231 form a heat dissipation channel 2235. The gas can pass through the heat dissipation channel 2235 and the grille assembly 2233 in sequence, thereby achieving heat dissipation of the booster. By using the heat dissipation channel 2235 for the first heat dissipation and the grille assembly 2233 for the second heat dissipation, the heat dissipation efficiency is high and the heat dissipation effect is good.

[0067] Furthermore, the grille assembly 2233 includes several grille bodies, and the gap formed between two adjacent grille bodies is connected to the heat dissipation channel 2235. The gap formed between two adjacent grille bodies increases the heat dissipation area and enhances the heat dissipation effect; at the same time, the grille bodies can accelerate the flow rate of hot air and enhance the heat dissipation efficiency.

[0068] Furthermore, a first guide surface is provided on the end of the grille body near the shroud 2234 to guide heat in the heat dissipation channel 2235. The first guide surface is set at an inclined angle, which conforms to fluid mechanics, increases the contact area of ​​hot air, and plays a guiding role. A second guide surface is provided on the end of the grille body away from the heat dissipation channel 2235 to guide heat between two adjacent grille bodies. The second guide surface is set at an inclined angle; when hot air flows between two adjacent grille bodies to the second guide surface, the second guide surface guides the hot air into the air, thus enhancing the heat dissipation effect.

[0069] Furthermore, the heat generated by the transmission structure 2 and the drive assembly 3 is transferred to the end of the first housing 22311 through the second housing 22312 and flows into the heat dissipation channel 2235. After passing through the heat dissipation channel 2235, the flow rate increases. Then, some of the hot air flows into the air through the first guide surface. The remaining hot air passes between two adjacent grille bodies. Finally, the remaining hot air flows into the air from the second guide surface, completing the heat dissipation process.

[0070] In the specific implementation of this embodiment 1, the friction wheel 1 is sleeved on the outer periphery of the drive assembly 3.

[0071] More specifically, the friction wheel 1 is fitted around the outer periphery of the drive assembly 3. The surface of the friction wheel 1 can be a material with certain frictional properties, or the surface of the friction wheel 1 can have treads that engage with the treads of the bicycle wheel, thereby achieving the pressing of the friction wheel 1 against the wheel and ensuring power transmission. After the friction wheel 1 presses against the wheel, the drive assembly 3 provides power to the friction wheel 1, making riding more effortless and bringing a better experience and comfort to the user.

[0072] The workflow provided in Embodiment 1 of the present invention is as follows: The output shaft of the power component 221 meshes with the first sun gear 22212, enabling the power component 221 to transmit power to the first gear mechanism 2221. The power component 221 also meshes with the third planetary carrier 22241 via the first planetary gear assembly 22213, causing the third planetary carrier 22241 to drive the third planetary gear assembly 22243 to rotate via the third sun gear 22242. Simultaneously, the third planetary gear assembly 22243 drives the second gear mechanism 2222 to rotate, thereby driving the output component 2225 to rotate, thus achieving power transmission. The first planetary gear body, the second planetary gear body, and the third planetary gear body all mesh with the external gear ring 2223, resulting in a gradual reduction of power, lower speed, and increased torque. The power component 221 drives the transmission assembly 222 to adjust the position of the control component 223, enabling the friction wheel 1 to press against or separate from the bicycle wheel. When the friction wheel 1 is pressed against the bicycle wheel, the drive assembly 3 drives the friction wheel 1, thereby driving the rotation of the bicycle wheel.

[0073] Example 2

[0074] Unlike Example 1, in the specific implementation process of Example 2, such as... Figures 8-10 As shown, the transmission assembly 222 includes a worm 2226, a worm wheel 2227, and a connecting shaft 2228. The power component 221 is connected to the worm 2226, the worm 2226 meshes with the worm wheel 2227, one end of the connecting shaft 2228 passes through the worm wheel 2227, and the other end of the connecting shaft 2228 is connected to the friction wheel 1. The power component 221 drives the worm 2226 to rotate while simultaneously driving the worm wheel 2227 to rotate, thereby enabling the friction wheel 1 to press against or separate from the bicycle wheel through the connecting shaft 2228.

[0075] More specifically, the output shaft of the power component 221 meshes with the worm gear 2226, which in turn meshes with the worm wheel 2227. The transmission assembly 222 employs a two-stage worm gear transmission to achieve a reduction ratio of 1:600-1200, amplifying the output torque of the power component 221 by 600-1200 times. The connecting shaft 2228 is connected to the friction wheel 1 via the control component 223, effectively pressing the friction wheel 1. After pressing the wheel, the power component 221 can be shut off. When working, the worm gear 22... 26 drives the worm gear 2227 to rotate, and due to the shape of the spiral of the worm gear 2227, the worm gear 2227 cannot reverse or move backward without the action of external force. The self-locking performance of the transmission component 222 achieves locking by mechanical self-locking after the friction wheel 1 presses against the bicycle wheel, so that the friction wheel 1 will not loosen. During the power transmission between the friction wheel 1 and the bicycle wheel, the friction wheel 1 and the bicycle wheel will not slip, reducing safety hazards and improving the reliability and stability of mechanical transmission.

[0076] The workflow provided in Embodiment 2 of the present invention is as follows: The output shaft of the power component 221 meshes with the worm gear 2226, the worm gear 2226 meshes with the worm wheel 2227, one end of the connecting shaft 2228 passes through the worm wheel 2227, and the other end of the connecting shaft 2228 is connected to the friction wheel 1. The power component 221 drives the worm gear 2226, and the connecting shaft 2228 adjusts the position of the control component 223 to achieve pressing or separating the friction wheel 1 from the bicycle wheel. When the friction wheel 1 is pressed against the bicycle wheel, the drive assembly 3 drives the friction wheel 1 to drive the rotation of the wheel.

[0077] Example 3

[0078] Example 3 provides a bicycle, such as Figure 11As shown, the vehicle includes a booster, a vehicle body, and a power module as described in Embodiment 1 or 2, wherein both the booster and the power module are mounted on the vehicle body.

[0079] More specifically, the booster 1 can be installed on the front or rear wheel of the vehicle body 3 as needed, and the power module 2 provides power to the booster 1, ensuring the bicycle's range.

[0080] In summary, the transmission structure 2 of the present invention enables the friction wheel 1 to be pressed or separated from the bicycle wheel. When the friction wheel 1 and the bicycle wheel are pressed together, the drive component 3 drives the friction wheel 1 and thus drives the rotation of the wheel. The booster can realize power transmission and prevent the friction wheel from slipping on the wheel. The transmission structure 2 has high pressure and is firmly pressed. After pressing the wheel, the friction wheel 1 will not loosen. Moreover, the booster is easy to install and does not damage the bicycle tire.

[0081] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A booster for use on a bicycle, characterized in that, It includes a friction wheel (1), a transmission structure (2), and a drive assembly (3). The drive assembly (3) is connected to the friction wheel (1), and the transmission structure (2) is connected to the friction wheel (1). In use, the friction wheel (1) presses against or separates from the bicycle wheel under the action of the transmission structure (2). When the friction wheel (1) is pressed against the bicycle wheel, the drive assembly (3) drives the friction wheel (1) to rotate the bicycle wheel.

2. The booster according to claim 1, characterized in that, The transmission structure (2) includes a housing (21) and a transmission mechanism (22) disposed within the housing (21), the transmission mechanism (22) acting on the friction wheel (1).

3. The booster according to claim 2, characterized in that, The transmission mechanism (22) includes a power component (221) and a transmission assembly (222) connected to the friction wheel (1). The power component (221) drives the transmission assembly (222) to press or separate the friction wheel (1) from the bicycle wheel.

4. The booster according to claim 3, characterized in that, The transmission assembly (222) includes an outer gear ring (2223) and a first gear mechanism (2221) and a second gear mechanism (2222) disposed within the outer gear ring (2223). The power component (221) is connected to the second gear mechanism (2222) through the first gear mechanism (2221). The second gear mechanism (2222) is connected to the friction wheel (1). The power component (221) drives the first gear mechanism (2221) to rotate within the outer gear ring (2223) while simultaneously driving the second gear mechanism (2222) to rotate, thereby enabling the friction wheel (1) to press against or separate from the bicycle wheel.

5. The booster according to claim 4, characterized in that, The transmission assembly (222) further includes at least one third gear mechanism (2224), which is disposed between the first gear mechanism (2221) and the second gear mechanism (2222).

6. The booster according to claim 5, characterized in that, The transmission assembly (222) further includes an output component (2225). The first gear mechanism (2221) and the second gear mechanism (2222) are both connected to one end of the output component (2225), and the other end of the output component (2225) is connected to the friction wheel (1). In use, the first gear mechanism (2221) drives the third gear mechanism (2224) to rotate, and the third gear mechanism (2224) drives the second gear mechanism (2222) to rotate within the outer gear ring (2223). In turn, the second gear mechanism (2222) drives the output component (2225) to rotate, thereby enabling the friction wheel (1) to press against or separate from the bicycle wheel through the output component (2225).

7. The booster according to claim 3, characterized in that, The transmission assembly (222) includes a worm (2226), a worm wheel (2227), and a connecting shaft (2228). The power component (221) is connected to the worm (2226), and the worm (2226) meshes with the worm wheel (2227). One end of the connecting shaft (2228) passes through the worm wheel (2227), and the other end of the connecting shaft (2228) is connected to the friction wheel (1). The power component (221) drives the worm (2226) to rotate while simultaneously driving the worm wheel (2227) to rotate, thereby enabling the friction wheel (1) to press against or separate from the bicycle wheel through the connecting shaft (2228).

8. The booster according to any one of claims 3-7, characterized in that, The transmission mechanism (22) further includes a control element (223), and the transmission assembly (222) is connected to the friction wheel (1) through the control element (223).

9. The booster according to claim 8, characterized in that, The control unit (223) includes a heat dissipation housing (2231), and the transmission assembly (222) is connected to the friction wheel (1) through the heat dissipation housing (2231).

10. The booster according to claim 9, characterized in that, The heat dissipation housing (2231) includes a first housing (22311) and a second housing (22312) connected to the first housing (22311). One side of the second housing (22312) is connected to the friction wheel (1), and the other side of the second housing (22312) is connected to the transmission structure (2).

11. The booster according to claim 9, characterized in that, The control unit (223) further includes a controller (2232), which is located inside the heat dissipation housing (2231) and connected to the power unit (221).

12. The booster according to claim 11, characterized in that, The control unit (223) further includes a grille assembly (2233) and a fan shroud (2234) disposed on the heat dissipation housing (2231), wherein the fan shroud (2234) and the heat dissipation housing (2231) together form a heat dissipation channel (2235).

13. The booster according to any one of claims 3-7, characterized in that, The friction wheel (1) is sleeved on the outer periphery of the drive assembly (3).

14. A bicycle, characterized in that, It includes a booster, a vehicle body, and a power module as described in any one of claims 1-13, wherein the booster and the power module are both disposed on the vehicle body.

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