High-protection electronic rear derailleur apparatus and human-powered vehicle

Abstract

A high-protection electronic rear derailleur apparatus and a human-powered vehicle. The electronic rear derailleur apparatus is mounted on a vehicle frame, a driving assembly (4) and an electronic control assembly (6) are provided on the electronic rear derailleur apparatus, the electronic control assembly is configured for driving the driving assembly to move, thereby engaging the entire electronic rear derailleur apparatus to move and shift gears; the electronic control assembly is mounted on one side of the electronic rear derailleur apparatus, in parallel with the rearward motion direction of the bicycle, the electronic rear derailleur apparatus is provided with a protecting part (111) extending parallel to the forward motion direction of the bicycle, and the protecting part partially overlaps with the outside of the electronic control assembly; a dampener component (13) is provided on the electronic rear derailleur apparatus, and the dampener component is located on the outside of the driving assembly so as to perform vibration damping on the driving assembly. A protecting part capable of overlapping with the outside of the electronic control assembly is provided, in an extending manner, on the outside of the electronic rear derailleur apparatus, such that the electronic control assembly is protected by means of the protecting part; and vibration damping is performed on the driving assembly by means of providing a dampener component. The apparatus therefore has the advantage of reducing damage to the electronic control assembly and the driving assembly caused by external impact.

Description

Highly protective electronic rear derailleur device and human-powered vehicle

[0001] This application is based on and claims priority to the Chinese patent application with application number 202410192887.2 and application date February 21, 2024. The entire contents of the application are hereby introduced as a whole into this application. Technical Field

[0002] The present application relates to the technical field of vehicle accessories, and in particular to a highly protective electronic rear derailleur device and a human-powered vehicle. Background Art

[0003] For human-powered vehicles with speed-changing functions, such as mountain bikes, the speed change is mainly achieved by controlling the electronic rear derailleur with an electronic shifter to move the chain between multiple sprockets of different diameters on the speed gear plate, thereby achieving the purpose of gear shifting.

[0004] The electronic shifter is controlled by being electrically connected to the electronic control assembly and the drive assembly in the electronic rear derailleur. The electronic control assembly has built-in electrical components such as batteries and circuit boards, and the drive assembly usually adopts a motor structure. The electronic control assembly and the drive assembly cooperate to realize the motion shifting of the electronic rear derailleur. However, the electronic control assembly and the drive assembly in the prior art lack external protection and are easily damaged when encountering external vibrations and impacts. Application Contents

[0005] The purpose of this application is to provide a highly protective electronic rear derailleur device and a human-powered vehicle, aiming to solve the problem that the electronic control components in the existing electronic rear derailleur devices lack external protection and are easily damaged when encountering external impacts.

[0006] In order to solve the above technical problems, the purpose of this application is achieved through the following technical solutions: providing a highly protective electronic rear derailleur device, which is installed on a bicycle frame, and the electronic rear derailleur device is constructed with a drive component and an electronic control component, and the electronic control component is used to drive the drive component to move to link the entire electronic rear derailleur device to perform sports shifting; the electronic control component is installed on one side of the electronic rear derailleur device in a direction parallel to the rearward direction of the bicycle, and the electronic rear derailleur device is provided with a protective part extending in a direction parallel to the forward direction of the bicycle, and the protective part overlaps with the outer part of the electronic control component; the electronic rear derailleur device is constructed with a buffer component, and the buffer component is located outside the drive component to cushion the vibration of the drive component.

[0007] Furthermore, the electronic rear derailleur device includes a base, and the electronic rear derailleur device is fixedly attached to the frame along the lateral direction of the vehicle through the base; an accommodating groove is provided on the inner side of the base, and the electronic control component is installed on one side of the accommodating groove; the outer side and bottom side of the base extend parallel to the forward direction of the bicycle and are constructed as the protective part.

[0008] Furthermore, the electronic control component includes a control box component and a battery component, the control box component is embedded in the accommodating slot, the battery component is clamped on one side of the accommodating slot and electrically connected to the control box component; the protective portion overlaps with the outer portion of the battery component.

[0009] Furthermore, the protection portion partially overlaps with the battery component, and the overlapping surface area accounts for 1 / 5 to 1 / 2 of the surface area of ​​the battery component.

[0010] Furthermore, the battery component includes a battery shell and a battery body; the battery body is embedded in the battery shell and only the power supply side of the battery body can be exposed outside the battery shell, and the battery shell is clamped on one side of the accommodating slot and the power supply side of the battery body is in contact and electrically connected with the control box assembly.

[0011] Furthermore, the top wall on one side of the accommodating slot is constructed as an elastic snap-fit, and the bottom wall on one side of the accommodating slot is provided with a positioning port; correspondingly, the top of the battery component is provided with a snap-fit, and the bottom of the battery component is provided with a positioning portion; when the battery component is clamped on one side of the accommodating slot, the positioning portion is clamped on the positioning port, and the elastic snap-fit ​​is elastically clamped on the snap-fit ​​to limit the battery component from falling out in the forward direction of the vehicle.

[0012] Furthermore, the electronic rear derailleur device also includes an outer link, a drive assembly and a movable assembly; the base, outer link, drive assembly and movable assembly are pivotally connected by a pivot pin and constructed as a parallelogram linkage mechanism; wherein, the movable assembly is constructed as an output end, and a chain guide for connecting to a transmission gear plate on the frame is pivotally connected to the movable assembly, and the parallelogram linkage mechanism is used to drive the chain guide to move in the lateral direction of the vehicle to achieve speed shifting; the drive assembly is constructed as an inner link function and can be driven to rotate relative to the base around the corresponding pivot pin, and link the parallelogram linkage mechanism to move; the buffer is a spring, and the buffer is mounted on the pivot pin of the drive assembly and elastically resists the drive assembly.

[0013] Furthermore, the control box assembly is fixedly installed in the accommodating slot by screws, and the control box assembly has a built-in wireless module for receiving signals.

[0014] Furthermore, the housing of the drive assembly includes an upper shell and a lower shell that are covered and connected, the upper shell is constructed as a metal part, and the lower shell is constructed as a plastic part.

[0015] An embodiment of the present application also provides a human-powered vehicle, comprising the electronic rear derailleur device as described above.

[0016] The embodiment of the present application provides a highly protective electronic rear derailleur and a human-powered vehicle. The electronic rear derailleur is mounted on a bicycle frame. A drive assembly and an electronic control assembly are constructed on the electronic rear derailleur. The electronic control assembly is used to drive the drive assembly to move so as to link the entire electronic rear derailleur for gear shifting. The electronic control assembly is mounted on one side of the electronic rear derailleur parallel to the rearward direction of the bicycle. The electronic rear derailleur is provided with a protective portion extending parallel to the forward direction of the bicycle. The protective portion overlaps with the outer portion of the electronic control assembly. The electronic rear derailleur is provided with a buffer. The buffer is located on the outside of the drive assembly to provide vibration buffering for the drive assembly. The embodiment of the present application extends a protective portion on the outside of the electronic rear derailleur that can overlap with the outside of the electronic control assembly. The electronic control assembly is protected by the protective portion. The drive assembly is also provided with a buffer to provide vibration buffering. This has the advantage of reducing damage to the electronic control assembly and the drive assembly caused by external impacts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] FIG1 is a schematic diagram of the overall structure of an electronic rear derailleur device provided in an embodiment of the present application;

[0019] FIG2 is a schematic diagram of a partial structure of an electronic rear derailleur device provided in an embodiment of the present application;

[0020] FIG3 is a schematic diagram of the installation structure of the base and the electronic control assembly provided in an embodiment of the present application from an inner side perspective;

[0021] FIG4 is a schematic diagram of the installation structure of the base and the electronic control assembly provided in an embodiment of the present application from an outside perspective;

[0022] FIG5 is a schematic structural diagram of a base provided in an embodiment of the present application;

[0023] FIG6 is a schematic diagram of an exploded structure of a base and an electronic control assembly provided in an embodiment of the present application from one perspective;

[0024] FIG7 is a schematic diagram of the exploded structure of the base and the electronic control assembly provided in an embodiment of the present application from another perspective.

[0025] Description of the symbols in the figure:

[0026] 1. Base; 11. Base body; 111. Protective portion; 112. Accommodating groove; 113. Elastic buckle; 114. Positioning port; 12. Mounting portion; 13. Buffer;

[0027] 2. Active components;

[0028] 3. External connecting rod;

[0029] 4. Drive assembly; 41. Upper shell; 42. Lower shell;

[0030] 5. Chain guide;

[0031] 6. Electronic control component; 61. Control box component; 611. Pin; 62. Battery component; 621. Battery housing; 622. Battery body; 623. Bayonet; 624. Positioning part; 625. Socket. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0034] It should also be understood that the terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0035] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0036] In conjunction with Figures 1-4, an embodiment of the present application provides a highly protective electronic rear derailleur device, which is installed on a bicycle frame. The electronic rear derailleur device is configured with a drive component 4 and an electronic control component 6. The electronic control component 6 is used to drive the drive component 4 to move to link the entire electronic rear derailleur device to perform sports shifting; the electronic control component 6 is installed on one side of the electronic rear derailleur device in a direction parallel to the rearward direction of the bicycle, and the electronic rear derailleur device is provided with a protective portion 111 extending in a direction parallel to the forward direction of the bicycle, and the protective portion 111 overlaps with the outer portion of the electronic control component 6; a buffer component 13 is constructed on the electronic rear derailleur device, and the buffer component 13 is located outside the drive component 4 to cushion the vibration of the drive component 4.

[0037] In this embodiment, most of the structure of the electronic control component 6 is usually exposed outside the electronic rear derailleur device for disassembly and maintenance. Therefore, it is more susceptible to damage by external vibration or impact. In order to improve the protection of the electronic control component 6, a protective portion 111 is extended from the outside of the electronic rear derailleur device and is capable of overlapping with the outside of the electronic control component 6. The protective portion 111 protects the electronic control component 6, thereby reducing damage to the electronic control component 6 caused by external vibration or impact.

[0038] In this embodiment, the drive assembly 4 is a structural component that drives the entire electronic rear derailleur device to move. It itself needs to perform rotational motion. When it is subjected to external vibration or impact, it may cause rotational motion disorder or excessive movement. Therefore, by providing a buffer member 13 to buffer the vibration of the drive assembly, the external vibration force or impact force can be reduced, thereby reducing the damage to the drive assembly 4 caused by the external impact.

[0039] 4 and 5 , in one embodiment, the electronic rear derailleur device includes a base 1, which is fixedly attached to the vehicle frame along the lateral direction of the vehicle through the base 1; an accommodating groove 112 is provided on the inner side of the base 1, and the electronic control component 6 is installed on one side of the accommodating groove 112; the outer side and bottom side of the base 1 extend parallel to the forward direction of the bicycle and are constructed as a protective portion 111.

[0040] In this embodiment, the base 1 is integrally constructed from a base body 11 and a mounting portion 12. The mounting portion 12 is located on the top side of the base body 11. The base 1 is fixedly mounted to the bicycle frame along the mounting axis A (i.e., the lateral direction of the vehicle) via the mounting portion 12, ensuring that the entire electronic rear derailleur device is stably attached to the bicycle frame. One side of the accommodating slot 112 is configured to facilitate the installation of the electronic control assembly 6. The electronic control assembly 6 is mounted in the center of the side of the accommodating slot 112 parallel to the rearward direction of the bicycle, maintaining stability. The majority of the electronic control assembly 6 is exposed outside the side of the accommodating slot 112. Therefore, a protective portion 111 extends upward from the outer side and bottom side of the base 1, toward the side of the accommodating slot 112 (i.e., parallel to the forward direction of the bicycle), thereby protecting the exposed portion of the electronic control assembly 6. It should be noted that the entire exposed portion of the electronic control assembly 6 is not protected because the electronic control assembly 6 requires external disassembly and maintenance.

[0041] 3 , 6 , and 7 , in one embodiment, the electronic control assembly 6 includes a control box assembly 61 and a battery assembly 62 . The control box assembly 61 is embedded in the accommodating groove 112 , and the battery assembly 62 is clamped on one side of the accommodating groove 112 and electrically connected to the control box assembly 61 . The protective portion 111 overlaps with the outer portion of the battery assembly 62 .

[0042] In this embodiment, the spatial shape of the construction on one side of the accommodating groove 112 can be adapted to the shape of the control box assembly 61, so that the control box assembly 61 can be embedded and fixed by screws to ensure the stability of the control box assembly 61. The accommodating groove 112 also effectively protects the control box assembly 61. The battery component 62 is the power supply device of the control box assembly 61. The battery component 62 and the control box assembly 61 are in contact and electrically connected through the respectively arranged socket 625 and pin 611; that is, when the battery component 62 is clamped on one side of the accommodating groove 112, it can be electrically connected to the control box assembly 61; therefore, the position where the battery component 62 and the control box assembly 61 are in contact and electrically connected needs to be more stable to ensure a stable electrical connection, and after the protective portion 111 extends to the outside of the battery component 62 and partially overlaps, it just covers the position where the battery component 62 and the control box assembly 61 are in contact and electrically connected, thereby achieving effective protection to ensure the stability of the electrical connection between the battery component 62 and the control box assembly 61.

[0043] In one embodiment, the control box assembly 61 is fixedly installed in the receiving groove 112 by screws, and the control box assembly 61 has a built-in wireless module for receiving signals.

[0044] In this embodiment, the control box assembly with a built-in wireless module is fixedly installed in the accommodating slot 112. When the battery component 62 is removed and installed, the control box assembly 61 is not affected, thereby ensuring the reliability of the circuit part. When the circuit part in the control box assembly 61 is damaged and needs repair, the screws can also be removed, and the repair is also convenient.

[0045] In one embodiment, the protection portion 111 partially overlaps with the battery component 62 , and the overlapping surface area accounts for 1 / 5 to 1 / 2 of the surface area of ​​the battery component 62 .

[0046] In this embodiment, the position where the battery component 62 and the control box assembly 61 are in contact and electrically connected needs to be stabilized to ensure a stable electrical connection. The protective portion 13 can be made of metal material. After the protective portion 13 extends to the outside of the battery component 62 and partially overlaps with it, it can cover the position where the battery component 62 and the control box assembly 61 are in contact and electrically connected, thereby achieving effective protection to ensure the stability of the electrical connection between the battery component 62 and the control box assembly 61.

[0047] In this embodiment, with respect to the size of the overlapping surface area between the protective portion 111 and the electronic control component 6, if the overlapping area is too small, the protective effect is poor; if the overlapping area is too large, because there is a wireless module in the control box component 61, the transmission of the wireless signal of the wireless module will be affected (the metal material will affect the signal). Therefore, in this embodiment, the overlapping surface area is set to account for 1 / 5 to 1 / 2 of the surface area of ​​the battery component 62, which not only has a good protective effect, but also does not affect the disassembly and maintenance of the battery component 62, thus achieving a good balance.

[0048] In one embodiment, the battery component 62 includes a battery shell 621 and a battery body 622; the battery body 622 is embedded in the battery shell 621 and only the power supply side of the battery body 622 can be exposed outside the battery shell 621, and the battery shell 621 is clamped on one side of the accommodating groove 112 and the power supply side of the battery body 622 is in contact with the control box assembly 61 for electrical connection.

[0049] In this embodiment, the battery shell 621 is constructed as a cavity shell with a socket 625 on one side, and the battery body 622 can be encapsulated in the cavity inside the battery shell 621 and the power supply side of the battery body 622 is exposed from the opening of the battery shell 621; the power supply side of the battery body 622 is provided with a socket 625 to achieve electrical connection with the pin 611 of the control box assembly 61; thus, the battery body 622 is preliminarily protected by the battery shell 621, and the external protection of the battery shell 621 is coordinated with the protective part 111, thereby effectively enhancing the protection of the battery body 622, thereby ensuring the stability of the electrical connection between the battery body 622 and the control box assembly 61.

[0050] In one embodiment, the top wall on one side of the accommodating groove 112 is constructed as an elastic snap 113, and the bottom wall on one side of the accommodating groove 112 is provided with a positioning port 114; correspondingly, the top of the battery component 62 is provided with a snap 623, and the bottom of the battery component 62 is provided with a positioning portion; when the battery component 62 is clamped on one side of the accommodating groove 112, the positioning portion is clamped on the positioning port 114, and the elastic snap 113 is elastically clamped on the snap 623 to limit the battery component 62 from falling out in the forward direction of the vehicle.

[0051] In this embodiment, the elastic clip 113 is axially connected to the top of one side of the accommodating groove 112 and forms the top wall of the accommodating groove 112. The elastic clip 113 can be made of elastic plastic to achieve the effect of elastic deformation; when the battery component 62 is clamped on one side of the accommodating groove 112, the positioning part at the bottom of the battery component 62 is first clamped on the positioning port 114 on the bottom wall of one side of the accommodating groove 112, and then the clamping port 623 at the top of the battery component 62 is matched with the elastic clip 113, so that the elastic clip 113 is clamped in the clamping port 623 of the battery component 62 through its own deformation, thereby keeping the battery component 62 electrically connected to the control box assembly 61 and limiting the battery component 62 from escaping in the forward direction of the vehicle.

[0052] In a further solution, the exterior of the battery component 62 can also be fixed to the base 1 by screws, thereby ensuring that the battery component 62 is stably installed on one side of the receiving groove 112 and achieves a stable electrical connection with the control box assembly 61.

[0053] 2 , in one embodiment, the electronic rear derailleur device further includes an outer link 3, a drive assembly 4, and a movable assembly 2; the base 1, the outer link 3, the drive assembly 4, and the movable assembly 2 are pivotally connected by a pivot pin and configured as a parallelogram linkage mechanism; wherein the movable assembly 2 is configured as an output end, and a chain guide 5 for transmission connection with a speed change gear plate on the frame is pivotally connected to the movable assembly 2, and the parallelogram linkage mechanism is used to drive the chain guide 5 to move in the lateral direction of the vehicle to achieve speed change and shifting.

[0054] In this embodiment, the base 1, the outer link 3, the drive assembly 4 and the movable assembly 2 can be pivotally connected by four pivot pins, thereby constructing a parallelogram linkage mechanism. The electronic control assembly 6 is electrically connected to the drive assembly 4, and the drive assembly 4 is controlled by the electronic control assembly 6 to rotate around the corresponding pivot pin, thereby linking the parallelogram linkage mechanism to move in the lateral direction of the vehicle, and then driving the chain guide 5 to move in the lateral direction of the vehicle to achieve speed shifting.

[0055] In one embodiment, the drive assembly 4 is constructed to function as an inner connecting rod and can be driven to rotate relative to the base 1 around the corresponding pivot pin, and link the parallelogram linkage mechanism to move; the drive assembly 4 is located on the inner side of the outer connecting rod 3 and on the other side of the accommodating groove 112; the outer connecting rod 3 is constructed as a plate-like structure and cooperates with the accommodating groove 112 to protect the drive assembly 4; the buffer 13 is a spring, and the buffer 13 is mounted on the pivot pin of the drive assembly 4 and elastically resists the drive assembly 4.

[0056] In this embodiment, drive assembly 4 is driven by a built-in electrically controlled gear assembly to achieve rotation about a pivot pin. This means that the electrical components within drive assembly 4 also require protection. Therefore, drive assembly 4 is configured as an inner link and positioned inside outer link 3 and on the other side of receiving slot 112. The outer link 3 is also configured as a plate-like structure, thereby protecting the entire drive assembly 4. Furthermore, a buffer member 13 is fitted onto the corresponding pivot pin. When drive assembly 4 is subjected to external vibration or impact, buffer member 13 elastically cushions the external vibration or impact force, thereby reducing damage to drive assembly 4 caused by the external impact.

[0057] In a further solution, the material of the housing of the driving assembly 4 can also be improved. The housing of the driving assembly 4 includes an upper shell 41 and a lower shell 42 that are connected to each other. The upper shell 41 is constructed as a metal part, and the lower shell 42 is constructed as a plastic part.

[0058] In this embodiment, the outer shell of the drive assembly 4 is constructed to function as an internal connecting rod, and it is necessary to ensure that it has sufficient strength. Therefore, the upper shell 41 is constructed as a metal part to ensure strength, and the lower shell 42 is constructed as a plastic part to facilitate the electrical connection between the wire port and the control box assembly 61.

[0059] An embodiment of the present application also provides a human-powered vehicle, comprising the above-mentioned electronic rear derailleur device.

[0060] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A highly protective electronic rear derailleur device, mounted on a bicycle frame, characterized by: The electronic rear derailleur device is constructed with a driving assembly and an electronic control assembly, wherein the electronic control assembly is used to drive the driving assembly to move so as to link the entire electronic rear derailleur device to perform sports shifting; The electronic control assembly is mounted on one side of the electronic rear derailleur in a direction parallel to the rearward direction of the bicycle. The electronic rear derailleur is provided with a protective portion extending in a direction parallel to the forward direction of the bicycle, and the protective portion overlaps with an outer portion of the electronic control assembly. The electronic rear derailleur device is provided with a buffer component, which is located outside the driving assembly to buffer vibrations of the driving assembly.

2. The high-protection electronic rear derailleur device according to claim 1, characterized in that: The electronic rear derailleur device includes a base, through which the electronic rear derailleur device is fixedly attached to the frame in the lateral direction of the vehicle; an accommodating groove is provided on the inner side of the base, and the electronic control component is installed on one side of the accommodating groove; the outer side and bottom side of the base extend parallel to the forward direction of the bicycle and are constructed as the protective part.

3. The high-protection electronic rear derailleur device according to claim 2, characterized in that: The electronic control assembly includes a control box assembly and a battery component. The control box assembly is embedded in the accommodating groove. The battery component is clamped on one side of the accommodating groove and electrically connected to the control box assembly. The protective portion overlaps with the outer portion of the battery component.

4. The high-protection electronic rear derailleur device according to claim 3, characterized in that: The protective portion partially overlaps with the battery component, and the overlapping surface area accounts for 1 / 5 to 1 / 2 of the surface area of ​​the battery component.

5. The high-protection electronic rear derailleur device according to claim 3, characterized in that: The battery component includes a battery shell and a battery body; the battery body is embedded in the battery shell and only the power supply side of the battery body can be exposed outside the battery shell; the battery shell is clamped on one side of the accommodating slot and the power supply side of the battery body is in contact and electrically connected with the control box assembly.

6. The high-protection electronic rear derailleur device according to claim 3, characterized in that: The top wall on one side of the accommodating slot is constructed as an elastic snap-fit, and the bottom wall on one side of the accommodating slot is provided with a positioning port; correspondingly, the top of the battery component is provided with a snap-fit, and the bottom of the battery component is provided with a positioning portion; when the battery component is clamped on one side of the accommodating slot, the positioning portion is clamped on the positioning port, and the elastic snap-fit ​​is elastically clamped on the snap-fit ​​to limit the battery component from falling out in the forward direction of the vehicle.

7. The high-protection electronic rear derailleur device according to claim 2, characterized in that: It also includes an outer connecting rod, a driving assembly and a movable assembly; the base, the outer connecting rod, the driving assembly and the movable assembly are pivotally connected by a pivot pin and are constructed as a parallelogram linkage mechanism; wherein, the movable assembly is constructed as an output end, and a chain guide is pivotally connected to the movable assembly for transmission connection with the speed gear plate on the frame, and the parallelogram linkage mechanism is used to drive the chain guide to move along the lateral direction of the vehicle to achieve speed shifting; the driving assembly is constructed as an inner connecting rod function and can be driven to rotate relative to the base around the corresponding pivot pin, and link the parallelogram linkage mechanism to move; the buffer is a spring, and the buffer is mounted on the pivot pin of the driving assembly and elastically resists the driving assembly.

8. The high-protection electronic rear derailleur device according to claim 7, characterized in that: The housing of the driving assembly comprises an upper housing and a lower housing which are connected to each other in a covering manner. The upper housing is constructed as a metal part, and the lower housing is constructed as a plastic part.

9. The high-protection electronic rear derailleur device according to claim 3, characterized in that: The control box assembly is fixedly installed in the accommodating slot by screws, and the control box assembly is equipped with a built-in wireless module for receiving signals.

10. A human-powered vehicle, characterized in that: The electronic rear derailleur device comprises the electronic rear derailleur device as claimed in any one of claims 1 to 9.

Images