Bicycle transmission assisting system

Abstract

The utility model discloses a bicycle transmission power assisting system, and belongs to the technical field of bicycles, the bicycle transmission power assisting system comprises a main body module and an improved module, the main body module comprises a first gear assembly and a second gear assembly, and the improved module is arranged between the first gear assembly and the second gear assembly; the improved module comprises a transmission chain arranged between a first gear assembly and a second gear assembly, a driving assembly is arranged at one end of the second gear assembly, a telescopic assembly is arranged on the driving assembly, and a fixing assembly is arranged on the telescopic assembly. Through the arrangement of the driving assembly, assistance can be provided for the second gear assembly, and through the arrangement of the telescopic assembly, the driving assembly can be driven to perform telescopic movement, so that the driving assembly can be driven to be separated from the second gear assembly in an idle state; and the power assisting structure can be conveniently mounted and fixed on the bicycle.

Description

Technical Field

[0001] The present application relates to the technical field of bicycles, and more specifically, to a bicycle transmission power assist system. Background Art

[0002] A bicycle, also known as a cycle or a bike, is a means of transportation and transport that uses human power as mechanical transmission. A bicycle has at least two wheels and is made of steel, light alloy or plastic. Types of bicycles include ordinary bicycles, road bicycles, fitness bicycles, track bicycles, mountain bicycles, downhill bicycles, etc.

[0003] According to the search, the Chinese patent with the announcement number CN219237277U discloses a transmission device and an electric power-assisted bicycle, which include: a mid-mounted motor, the mid-mounted motor includes a motor body and a driving shaft connected to the motor body; a fixing mechanism, which is arranged on the motor body; a transmission system, the transmission system includes a driving wheel, a driven wheel, a belt and a tensioning wheel, the driving wheel is connected to the driving shaft, the driven wheel and the tensioning wheel are connected to the fixing mechanism, the belt is sleeved on the driving wheel and the driven wheel, the tensioning wheel is abutted against the outside of the belt, and when the driving shaft rotates, the driving wheel is driven to rotate, and then the driven wheel is driven to rotate through the belt. The utility model improves the transmission system of the existing electric power-assisted bicycle from chain drive to belt drive. The belt drive not only has smooth transmission, stable operation, and low noise, but also reduces the cost.

[0004] Regarding the above-mentioned related technologies, the applicant believes that although the use of belt transmission has the advantage of less noise, it also has the problem of easy breakage, and its power-assisting structure is always connected to the driving wheel and difficult to separate, resulting in the rotation of the driving wheel when idle will also drive the power-assisting structure to rotate, thereby causing unnecessary wear of the resistance structure. For this reason, we propose a bicycle transmission power-assisting system. Utility Model Content

[0005] In order to solve the above problems, the present application provides a bicycle transmission power-assisting system, which adopts the following technical solutions:

[0006] A bicycle power transmission system includes a main body module and an improved module, wherein the main body module includes a first gear assembly and a second gear assembly, the improved module is arranged between the first gear assembly and the second gear assembly, the improved module includes a transmission chain arranged between the first gear assembly and the second gear assembly, a driving assembly is arranged at one end of the second gear assembly, a telescopic assembly is arranged on the driving assembly, and a fixing assembly is arranged on the telescopic assembly.

[0007] By adopting the above technical solution, the transmission chain can be less likely to break due to belt transmission, and the driving component can be separated from the second gear component when idle to avoid wear of the driving component.

[0008] Furthermore, the first gear assembly includes a first gear body, and a first connecting rod is fixedly connected to the axis of the first gear body.

[0009] By adopting the above technical solution, the first connecting rod can be installed.

[0010] Furthermore, the second gear assembly includes a second gear body, and a second connecting rod is fixedly connected to the axis of the second gear body.

[0011] By adopting the above technical solution, the second connecting rod can be installed.

[0012] Furthermore, the transmission chain is transmission-connected between the first gear body and the second gear body.

[0013] By adopting the above technical solution, the rotation of the second gear body can drive the first gear body to rotate through the transmission chain.

[0014] Furthermore, the driving assembly includes a driving motor arranged outside the second gear body, and an output end of the driving motor is fixedly connected to a hexagonal sleeve block.

[0015] By adopting the above technical solution, the hexagonal sleeve block can be driven to rotate.

[0016] Furthermore, the driving assembly also includes a hexagonal block fixedly connected to one end of the second connecting rod, and the hexagonal sleeve block is movably sleeved on the outside of the hexagonal block.

[0017] By adopting the above technical solution, the rotation of the hexagonal sleeve block can drive the hexagonal block to rotate.

[0018] Furthermore, the telescopic assembly includes a hydraulic cylinder arranged above the driving motor, the output end of the hydraulic cylinder is fixedly connected with a connecting piece, the bottom of the connecting piece is fixedly connected with a ring, and the ring is sleeved on the outside of the driving motor.

[0019] By adopting the above technical solution, the driving motor can be driven to perform telescopic movement and adjust the position.

[0020] Furthermore, the fixing assembly comprises a rectangular frame sleeved on the outside of the hydraulic cylinder, a mounting plate is fixedly connected to the top of the rectangular frame, and a fixing pin is threadedly connected to the inside of the mounting plate.

[0021] By adopting the above technical solution, it is convenient to install the power-assisting structure.

[0022] In summary, this application includes the following beneficial technical effects:

[0023] (1) The transmission chain is less likely to break than a belt drive. The drive assembly can provide assistance to the second gear assembly. The telescopic assembly can drive the drive assembly to telescopically move, so that the drive assembly can be separated from the second gear assembly when idle, thereby avoiding unnecessary wear.

[0024] (2) The transmission chain is connected between the first gear body and the second gear body, which is less likely to break due to the belt transmission;

[0025] (3) By setting the driving motor, the hexagonal sleeve block can be driven to rotate, by setting the hydraulic cylinder, the connecting piece can be driven to telescopically move, and by setting the fixing pin, the structure can be easily installed and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of this application;

[0027] Figure 2 This is a schematic diagram of the explosion structure of this application;

[0028] Figure 3 It is a schematic cross-sectional structural diagram of the drive assembly of the present application;

[0029] Figure 4 This is a schematic diagram of the exploded structure of the telescopic component and the fixed component of the present application.

[0030] Description of the numbers in the figure:

[0031] 100, main body module; 110, first gear assembly; 111, first gear body; 112, first connecting rod; 120, second gear assembly; 121, second gear body; 122, second connecting rod;

[0032] 200, improvement module; 210, transmission chain; 220, drive assembly; 221, drive motor; 222, hexagonal sleeve block; 223, hexagonal block; 230, telescopic assembly; 231, hydraulic cylinder; 232, connecting piece; 233, sleeve ring; 240, fixing assembly; 241, rectangular frame; 242, mounting piece; 243, fixing pin. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0034] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] See also Figure 1-4 A bicycle power transmission system includes a main module 100 and an improved module 200. The main module 100 includes a first gear assembly 110 and a second gear assembly 120. The improved module 200 is arranged between the first gear assembly 110 and the second gear assembly 120. The improved module 200 includes a transmission chain 210 arranged between the first gear assembly 110 and the second gear assembly 120. A driving assembly 220 is arranged at one end of the second gear assembly 120, a telescopic assembly 230 is arranged on the driving assembly 220, and a fixing assembly 240 is arranged on the telescopic assembly 230.

[0038] Through the arrangement of the transmission chain 210, it is less likely to break than a belt drive. Through the arrangement of the driving assembly 220, it can provide power assistance to the second gear assembly 120. Through the arrangement of the telescopic assembly 230, it can drive the driving assembly 220 to telescopically move, so that the driving assembly 220 can be separated from the second gear assembly 120 when idle. Through the arrangement of the fixing assembly 240, it is convenient to install and fix the power-assisting structure on the bicycle.

[0039] The first gear assembly 110 includes a first gear body 111, and a first connecting rod 112 is fixedly connected at the axis of the first gear body 111. The second gear assembly 120 includes a second gear body 121, and a second connecting rod 122 is fixedly connected at the axis of the second gear body 121. The transmission chain 210 is transmission-connected between the first gear body 111 and the second gear body 121.

[0040] By setting the first gear body 111, the first connecting rod 112 can be installed, and by setting the second gear body 121, the second connecting rod 122 can be installed. The transmission chain 210 is connected between the first gear body 111 and the second gear body 121, and the belt transmission makes it less likely to break.

[0041] The driving assembly 220 includes a driving motor 221 arranged on the outside of the second gear body 121, and the output end of the driving motor 221 is fixedly connected to a hexagonal sleeve block 222. The driving assembly 220 also includes a hexagonal block 223 fixedly connected to one end of the second connecting rod 122, and the hexagonal sleeve block 222 is movably sleeved on the outside of the hexagonal block 223. The telescopic assembly 230 includes a hydraulic cylinder 231 arranged above the driving motor 221, and the output end of the hydraulic cylinder 231 is fixedly connected to a connecting plate 232, and the bottom of the connecting plate 232 is fixedly connected to a ring 233, and the ring 233 is sleeved on the outside of the driving motor 221. The fixing assembly 240 includes a rectangular frame 241 sleeved on the outside of the hydraulic cylinder 231, and the top of the rectangular frame 241 is fixedly connected to a mounting plate 242, and the internal thread of the mounting plate 242 is connected to a fixing pin 243.

[0042] By starting the hydraulic cylinder 231, the driving motor 221 can be driven to telescopically move and adjust the position through the connecting piece 232 and the ring 233, so that the driving motor 221 can drive the hexagonal sleeve block 222 to be sleeved on the outside of the hexagonal block 223. At this time, starting the driving motor 221 can drive the hexagonal block 223 to rotate through the hexagonal sleeve block 222, thereby providing power to the bicycle.

[0043] The implementation principle of the embodiment of the present application is as follows: through the setting of the transmission chain 210, it is less likely to break than the belt drive. When the bicycle needs to be assisted, the fixing pin 243 can be firstly threadedly connected to the inside of the mounting plate 242 and extended to the inside of the bicycle, so that the assisting structure driving component 220 and the telescopic component 230 can be installed, and then the hydraulic cylinder 231 is started to drive the connecting plate 232 to extend, so that the driving motor 221 can be driven to move through the ring 233, and then the hexagonal sleeve block 222 can be driven to be movably sleeved on the outside of the hexagonal block 223. At this time, starting the driving motor 221 can drive the hexagonal block 223 to rotate through the hexagonal sleeve block 222, and the hexagonal block 223 will drive the second connecting rod 122 to rotate, so as to drive the second gear body 121 to rotate, and then the bicycle can be assisted, so that the present structure can separate the assisting structure and the second gear body 121 when idle, so as to avoid unnecessary wear of the assisting structure.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bicycle power transmission system, comprising a main module (100) and an improved module (200), characterized in that: The main body module (100) comprises a first gear assembly (110) and a second gear assembly (120), and the improved module (200) is arranged between the first gear assembly (110) and the second gear assembly (120); The improved module (200) comprises a transmission chain (210) arranged between a first gear assembly (110) and a second gear assembly (120); a driving assembly (220) is arranged at one end of the second gear assembly (120); a telescopic assembly (230) is arranged on the driving assembly (220); and a fixing assembly (240) is arranged on the telescopic assembly (230).

2. A bicycle power transmission system according to claim 1, characterized in that: The first gear assembly (110) comprises a first gear body (111), and a first connecting rod (112) is fixedly connected to the axis of the first gear body (111).

3. A bicycle power transmission system according to claim 2, characterized in that: The second gear assembly (120) comprises a second gear body (121), and a second connecting rod (122) is fixedly connected to the axis of the second gear body (121).

4. A bicycle power transmission system according to claim 3, characterized in that: The transmission chain (210) is transmission-connected between the first gear body (111) and the second gear body (121).

5. A bicycle power transmission system according to claim 4, characterized in that: The driving assembly (220) comprises a driving motor (221) arranged outside the second gear body (121), and an output end of the driving motor (221) is fixedly connected to a hexagonal sleeve block (222).

6. A bicycle power transmission system according to claim 5, characterized in that: The driving assembly (220) further comprises a hexagonal block (223) fixedly connected to one end of the second connecting rod (122), and the hexagonal sleeve block (222) is movably sleeved on the outside of the hexagonal block (223).

7. A bicycle power transmission system according to claim 6, characterized in that: The telescopic assembly (230) comprises a hydraulic cylinder (231) arranged above the driving motor (221), the output end of the hydraulic cylinder (231) is fixedly connected to a connecting piece (232), the bottom of the connecting piece (232) is fixedly connected to a sleeve (233), and the sleeve (233) is sleeved on the outside of the driving motor (221).

8. A bicycle power transmission system according to claim 7, characterized in that: The fixing assembly (240) comprises a rectangular frame (241) sleeved on the outside of the hydraulic cylinder (231), a mounting plate (242) being fixedly connected to the top of the rectangular frame (241), and a fixing pin (243) being threadedly connected to the inside of the mounting plate (242).

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