Variable speed control device and riding equipment

By integrating the dial keys and battery of the highway bicycle speed control device, the structure is simplified, the space occupation is reduced, the user experience and aesthetics are improved, and the problems of complex and large space in the existing technology are solved.

CN120422989APending Publication Date: 2025-08-05QINGDAO MAGENE INTELLIGENCE TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510884285.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2025-08-05

AI Technical Summary

Technical Problem

In the existing electronic speed transmission system of road bicycles, the speed button structure is complex and takes up a large space, which affects the user experience.

Method used

The first and second keys are integrated on the same key panel, the battery is integrated in the mount, and the triggering of two speed-changing modes is achieved using a single panel, and the speed-changing control is performed through the contact connection between the control module and the key triggering part.

Benefits of technology

The structure of the speed control device is simplified, the space is occupied, the user's convenience of operation and overall aesthetics are improved, and the maintenance is convenient.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120422989A_ABST
    Figure CN120422989A_ABST
Patent Text Reader

Abstract

The invention discloses a variable speed control device and riding equipment, and the device comprises a mounting seat which is connected to a brake rod of a vehicle body, and a sealed mounting space is formed in the mounting seat; the dial keys are rotationally connected to the mounting base, the dial keys comprise the first dial key and the second dial key, the first dial key and the second dial key are of an integrated structure, and first dial key triggering parts are arranged on one side of the first dial key and one side of the second dial key correspondingly; the control module is connected in the mounting space, the control module is provided with a contact corresponding to the first dial key trigger part, the contact is in contact connection with the first dial key trigger part when the first dial key or the second dial key rotates, and the control module sends a corresponding control instruction to perform speed change when the contact is in contact connection with the first dial key trigger part; the battery is located in the installation space and used for supplying power to the control module. The space occupied by the variable speed control device is reduced while the operation is convenient, and the user experience is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention belongs to the technical field of speed change control devices, and in particular relates to a speed change control device and a riding device. Background Art

[0002] Road bikes are increasingly using electronic shifting, with a trend towards wireless technology. This requires independent power and signal transmission between components. For shifters with lower energy consumption, using replaceable batteries is a more practical option. The battery selection should be based on common models on the market, and its placement should ensure ergonomics and ease of removal.

[0003] The operating logic of the speed shift button is a combination of the up and down keys under normal conditions, usually in the form of two independent control parts. This structure is more complicated and will increase the weight of the product.

[0004] In view of this, how to design a technology with a simple structure, small space occupation and improved user experience is the technical problem to be solved by the present invention. Summary of the Invention

[0005] The present invention provides a speed change control device and a riding device, which are easy to operate while reducing the space occupied by the speed change control device and improving user experience.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: In one aspect, the present invention provides a speed control device comprising: A mounting seat connected to the brake rod of the vehicle body, wherein a sealed mounting space is formed inside the mounting seat; A dial key, which is rotatably connected to the mounting base, includes a first dial key and a second dial key, the first dial key and the second dial key are an integrated structure, and a first dial key trigger portion is provided on one side of the first dial key and the second dial key; a control module connected within the installation space, the control module being provided with a contact corresponding to the first dial key trigger portion, the contact being in contact and connected with the first dial key trigger portion when the first dial key or the second dial key is rotated, and the control module issuing a control instruction to shift speed when the contact is in contact and connected with the first dial key trigger portion; A battery is located in the installation space, and the battery is used to supply power to the control module.

[0007] In some embodiments of the present application, a collapsed portion is further provided on the dial key, and the collapsed portion is located between the first dial key and the second dial key. The thickness of the collapsed portion is smaller than that of the first dial key and the second dial key. A rotating shaft is connected below the collapsed portion, and the dial key is rotatably connected to the mounting seat via the rotating shaft.

[0008] In some embodiments of the present application, a reset mechanism is provided at both ends of the rotating shaft, and the reset mechanism is used to reset the dial key after the dial key is rotated.

[0009] In some embodiments of the present application, the first dial key is a platform structure, the second dial key is a protruding structure, and the thickness of the second dial key is greater than the thickness of the first dial key.

[0010] In some embodiments of the present application, a touch-enhancing mechanism is provided under the dial key, and the touch-enhancing mechanism is used to enhance the tactile sensation when dialing the key.

[0011] In some embodiments of the present application, the touch enhancement mechanism includes a cover plate, which is connected to the mounting base. A second key trigger portion is provided on the cover plate. The second key trigger portion is adapted in shape to the first key trigger portion. The second key trigger portion is made of soft rubber material. When the first key or the second key rotates, the second key trigger portion is squeezed by the first key trigger portion and is in contact with the contact point.

[0012] In some embodiments of the present application, an extension line of the center point between the contacts is perpendicular to an extension line of the dial key axis.

[0013] In some embodiments of the present application, the battery is located within the projection of the control module.

[0014] In some embodiments of the present application, the contacts are all located within the projection of the battery.

[0015] In another aspect, the present invention provides a riding device, comprising a vehicle body, a handlebar disposed on the vehicle body, a brake lever disposed on the handlebar, and a speed control device as described in any one of the above items disposed on the brake lever.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are: By integrating the first and second dial keys on the same dial panel, a single panel is used to trigger two speed change modes, preventing accidental pressing of the upper and lower dial keys at the same time, making the fixed structure lighter and easier to maintain later. The single dial panel is easy to assemble, which can effectively improve production efficiency. The battery is integrated into the mounting base, which ensures direct power supply to the control module without the need for independent structural support, reduces the waterproof interface, makes the electronic part more integrated, ergonomic, and easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 1 An exploded schematic diagram of the structure of a speed control device of the present invention; Figure 2 An assembly sectional view of a speed control device of the present invention; Figure 3 An enlarged schematic diagram of the assembly of the return torsion spring, the rotating shaft and the cover plate in one embodiment of the speed control device of the present invention; Figure 4 A schematic diagram of a shift control device of the present invention in an embodiment of the dial key in the initial state; Figure 5 Schematic diagram of pressing the second dial key in one embodiment of the speed control device of the present invention; Figure 6 A schematic diagram of pressing the first dial key in one embodiment of the speed control device of the present invention; Figure 7 A schematic diagram of the assembly of a shift control device of the present invention, a dial key and a mounting base in one embodiment; Figure 8 for Figure 7 A cross-sectional view; Figure 9 A schematic diagram of the assembly of a shift control device of the present invention, a dial key, a rotating shaft and a return torsion spring in one embodiment; Figure 10 Assembly diagram of the cover and the return torsion spring in one embodiment of the speed control device of the present invention; Figure 11 A schematic structural diagram of a control module in one embodiment of the speed control device of the present invention; Figure 12 A schematic diagram of the assembly of a control module, a positive shrapnel and a negative shrapnel in an embodiment of the speed control device of the present invention; Figure 13 A schematic diagram of a shift control device of the present invention in which an extended line of the dial key axis and a vertical extended line of the center point between the contacts are provided in one embodiment; Figure 14 Schematic diagram of a speed control device of the present invention when the dial key is pressed in an embodiment of the dial key axis along the tangential direction of the force; Figure 15 A schematic structural diagram of a speed control device of the present invention is mounted on the brake lever in an embodiment; Figure 16 for Figure 15 Explosion diagram.

[0019] Description of reference numerals: 1. Speed control device; 100, mounting base; 200, dial key; 201, first dial key; 202, second dial key; 203, first dial key trigger portion; 204, collapse portion; 205, rotation axis; 300, control module; 301, contact; 400, battery; 401, sealing plate; 402, sealing O-ring; 403, screw; 404, positive electrode spring; 405, negative electrode spring; 500, touch enhancement mechanism; 501, cover plate; 502, second dial key triggering portion; 503, stopper; 600, reset torsion spring; 601, torsion arm; 2. Brake lever. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0021] It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0024] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0025] like Figures 1 to 16 As shown, the present application provides a speed control device 1, including a mounting base 100, a dial key 200, a control module 300, and a battery 400. The speed control device 1 can reduce the weight of the speed control device 1 by combining the up and down dial keys 200, making it easier to operate. In addition, by integrating the battery 400 into the unused space at the rear end of the dial key 200 module, the installation volume required for the speed control device 1 is reduced. Specifically: like Figure 15 、 Figure 16 As shown, the mounting base 100 is connected to the brake lever 2 of the vehicle body. The mounting base 100 is a cavity with openings on both sides. One end of the mounting base 100 is mounted on the brake lever 2 of the vehicle body by a screw 403. A sealed installation space is formed inside the mounting base 100, and the installation space is used to install electronic parts such as the control module 300 and the battery 400.

[0026] like Figures 1 to 9 As shown, the dial key 200 is rotatably connected to the mounting base 100, and its rotation axis is parallel to the outer shape of the vehicle body handle; the dial key 200 includes a first dial key 201 and a second dial key 202. The width of the first dial key 201 and the second dial key 202 can be set according to actual production requirements. The first dial key 201 and the second dial key 202 are an integral structure, so the dial key 200 is in the form of a single cover plate 501; a first dial key trigger portion 203 is provided on one side of each of the first dial key 201 and the second dial key 202.

[0027] The control module 300 is connected in the installation space. The control module 300 is a PCBA component. The PCBA component is composed of a PCBA substrate and a dome sheet. A plastic sheet (mylar) with adhesive backing is attached to the dome sheet to fix the dome sheet. This combination forms a thin film contact 301. The structure of the control module 300 is shown in the figure. Figure 11 shown.

[0028] The control module 300 has built-in control circuits for different speed shifting modes. These circuits are connected by setting different contacts 301. This is prior art for achieving different speed shifting modes through different control circuits. This application is directed to improvements to the structure of the speed shifting control device 1, and therefore does not provide a detailed description of the control circuits. A contact 301 is provided on the control module 300 at a position corresponding to the first dial key triggering portion 203. When the first dial key 201 or the second dial key 202 is manually pressed and rotated, the contact 301 connects with the first dial key triggering portion 203. When the contact 301 connects with the first dial key triggering portion 203, the control circuit corresponding to the first dial key 201 or the second dial key 202 within the control module 300 is activated, issuing a control instruction corresponding to the first dial key 201 or the second dial key 202 to shift speeds.

[0029] The battery 400 is installed in the installation space, and the battery 400 is used to supply power to the control module 300 .

[0030] When the user needs to change gears during riding, he presses the first dial key 201 or the second dial key 202. After pressing the first dial key 201, the dial key 200 rotates, and the first dial key triggering part 203 below the first dial key 201 is connected to the contact 301 at the corresponding position on the control module 300. The battery 400 supplies power to the control module 300, and then triggers the corresponding gear shifting mode to change gears; similarly, pressing the second dial key 202 triggers the corresponding gear shifting mode.

[0031] like Figures 4 to 8 As shown, a collapsed portion 204 is provided on the dial key 200, and the collapsed portion 204 is located between the first dial key 201 and the second dial key 202. The thickness of the collapsed portion 204 is smaller than that of the first dial key 201 and the second dial key 202. A rotating shaft 205 is connected below the collapsed portion 204. The width of the collapsed portion 204 is greater than the diameter of the rotating shaft 205. The dial key 200 is rotatably connected to the mounting base 100 via the rotating shaft 205.

[0032] Specifically, a collapsed portion 204 is provided on the surface of the dial key 200 that is directly operated by the user. The collapsed portion 204 is located directly above the rotation axis 205 and in the middle of the first dial key 201 and the second dial key 202. The collapsed portion 204 can be used to distinguish the first dial key 201 and the second dial key 202 to avoid pressing this area during operation affecting riding speed change; it can also ensure that the operating positions of the first dial key 201 and the second dial key 202 pressed by the fingertips are at the same distance from the rotation axis 205 during operation, so that the force is balanced when operating the first dial key 201 and the second dial key 202, thereby improving the operating experience.

[0033] A reset mechanism is provided at both ends of the rotating shaft 205. The reset mechanism is used to reset the dial key 200 after the dial key 200 is rotated. The reset mechanism can be made of an elastic body, such as soft glue, a reed, a torsion spring, etc. After many tests, it was found that the arrangement of the reset torsion spring 600 is relatively free with little limitation. Therefore, the reset mechanism adopts the reset torsion spring 600 as the optimal embodiment. Two sets of reset torsion springs 600 are respectively mounted on both ends of the rotating shaft 205. The reset spring can restore the entire dial key 200 to its initial state after the user presses the first dial key 201 or the second dial key 202, so that it can be operated the next time. The reset torsion spring 600 is concentrically arranged with the rotating shaft 205. The two ends of the torsion arm 601 of the reset torsion spring 600 are connected to the lower part corresponding to the collapsed part 204 on the dial key 200. The axial movement of the reset torsion spring 600 is limited by the stopper 503 on the cover plate 501. Figure 3 shown.

[0034] In the initial state, if Figure 4 As shown, the first dial key 201 and the second dial key 202 are in a state parallel to the mounting base 100. When the first dial key 201 is pressed, as shown in FIG. Figure 6 As shown, the torsion arms 601 of the two sets of return torsion springs 600 near one end of the first dial key 201 are compressed, and the torsion arms 601 of the two sets of return torsion springs 600 away from one end of the first dial key 201 are stretched, exerting a reverse force. When the first dial key 201 is stopped, the first dial key 201 and the second dial key 202 are pulled back to the initial state parallel to the mounting base 100 under the reverse force of the torsion arms 601 of the two sets of return torsion springs 600 away from one end of the first dial key 201. Pressing the second key is similar to pressing the first dial key 201. Figure 5 shown.

[0035] The first dial button 201 is a flat structure, while the second dial button 202 is a raised structure. The thickness of the second dial button 202 is greater than that of the first dial button 201. The first and second dial buttons 201, 202 have different structures and a height difference. This allows the user to distinguish the first and second dial buttons 201, 202 by feel, without visual inspection, improving operational efficiency. It also prevents the other side from being lifted too high to interfere with pressing the first or second dial button 201, 202 when performing certain riding postures.

[0036] A touch-sensitivity enhancement mechanism 500 is provided below the dial key 200 , and the touch-sensitivity enhancement mechanism 500 is used to enhance the touch of the dial key 200 .

[0037] like Figure 10 As shown, the touch enhancement mechanism 500 includes a cover plate 501, which is connected to the mounting base 100. The shape of the cover plate 501 is adapted to the mounting base 100. The contact surface between the cover plate 501 and the mounting base 100 is sealed by dispensing glue, which can prevent water and dust from entering and affecting the use of the dial key 200. A protruding stopper 503 is provided in the middle of the cover plate 501. The rotation shaft 205 is provided through the stopper 503. The second dial key triggering portion 502 is located at each end of the stopper 503. The second dial key triggering portion 502 is adapted in shape to the first dial key triggering portion 203 and is made of soft rubber material. When the first dial key 201 or the second dial key 202 rotates, the second dial key triggering portion 502 is squeezed by the first dial key triggering portion 203 and contacts the contact 301.

[0038] The stopper 503 is also located between the two torsion arms 601 of each set of reset torsion springs 600 . The stopper 503 can prevent the reset torsion springs 600 from rotating, thereby achieving a better reset effect.

[0039] The soft rubber material indents when the first dial trigger 203 presses against the second dial trigger 502, enhancing the tactile feel of the press. The cover 501 is made of a mixture of plastic and soft rubber, using a conventional two-shot molding process (not detailed here). The second dial trigger 502 is integrally molded onto the cover 501 as an insert. This one-piece molding process utilizes a two-shot molding process. This one-piece structure facilitates installation and prevents the second dial trigger 502 from falling off the cover 501 after prolonged use.

[0040] The first dial key triggering portion 203 is a columnar structure, and the second dial key triggering portion 502 is a hollow cap-shaped structure. The hollow cap-shaped structure can be concave inward after the columnar structure is squeezed, thereby further improving the tactile feel of pressing the dial key 200 and enhancing the hand feel.

[0041] like Figure 13As shown, the extension line of the center point between the two contacts 301 is perpendicular to the extension line of the axis of the dial key 200. When the dial key 200 is pressed and rotated, the axis of the dial key 200 is subjected to force in the tangential direction. This arrangement makes the force tangent perpendicular to the axis in space, which can reduce the press-to-release loss and make the thickness dimension of the speed control device 1 more compact. The diagram showing the force applied to the axis of the dial key 200 in the tangential direction is shown in FIG. Figure 14 As shown in the figure, a dotted cylinder is used to represent the axis extension line of the dial key 200, the red line represents the rotation direction of the dial key 200, and the blue line represents the tangent direction of the axis extension line.

[0042] The battery 400 is located within the projection of the control module 300 and the transverse surface of the battery 400 is parallel to the extension line of the swing axis of the dial key 200 , which can effectively reduce the thickness of the speed control device 1 .

[0043] Both contacts 301 are located within the projection of the plane of the negative electrode spring 405 of the battery 400. This arrangement can reduce the overall volume of the speed control device 1, fully utilize the space inside the speed control device 1, and make the speed control device 1 more compact as a whole. When arranged on the vehicle body, it can not only ensure normal operation, but also improve the overall aesthetics of the vehicle body.

[0044] A negative electrode spring 405 is provided at the bottom of the PCBA substrate, and a positive electrode spring 404 is provided on the side of the PCBA substrate. When the battery 400 is installed in the mounting base 100 and connected with the positive electrode spring 404 and the negative electrode spring 405, the shapes of the positive electrode spring 404 and the negative electrode spring 405 can be referred to the attached figure. This structure is simple to install and the springs have a wide visible range. The sealing plate 401 is tightened at the corresponding position of the mounting base 100 (the sealing plate 401 is provided with a thread on the periphery, and the mounting base 100 is provided with a thread that matches the thread on the periphery of the sealing plate 401). A sealing O-ring 402 is provided at the connection between the sealing plate 401 and the mounting base 100, which ensures the sealing of the speed control device 1 while facilitating disassembly and assembly in the later stage. Considering the vibration problem during riding, after the sealing plate 401 is installed on the mounting base 100, screws 403 are added to fix it.

[0045] In another aspect, the present application further provides a riding device, comprising a vehicle body, a handlebar provided on the vehicle body, a brake lever 2 provided on the handlebar, and a speed control device 1 as described above provided on the brake lever 2.

[0046] The present application proposes a speed control device and riding equipment, in which the battery 400 module is fixed by using the space inside the mounting base 100, and there is no need to set up a separate fixing structure, so that the overall weight of the speed control device 1 is lighter and it is also convenient for later maintenance; the waterproof interface is reduced, and the assembly is more convenient while ensuring the waterproof effect; the control module 300 is more integrated than the existing technology, so that the speed control device 1 occupies less space and improves the aesthetics of the speed control device 1 installed on the vehicle body; in addition, the dial key 200 uses a single panel to achieve two triggers, which can prevent the first dial key 201 and the second dial key 202 from being accidentally pressed at the same time, making the operation convenient and greatly improving the user experience.

[0047] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of these terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

[0049] Wherever possible, the various aspects and features described and illustrated in this specification may be applied separately, and these separate aspects may be the subject of divisional applications.

Claims

1. A speed control device, characterized in that: include: A mounting seat connected to the brake rod of the vehicle body, wherein a sealed mounting space is formed inside the mounting seat; A dial key, which is rotatably connected to the mounting base, includes a first dial key and a second dial key, the first dial key and the second dial key are an integrated structure, and a first dial key trigger portion is provided on one side of the first dial key and the second dial key; a control module connected within the installation space, the control module being provided with a contact corresponding to the first dial key trigger portion, the contact being in contact and connected with the first dial key trigger portion when the first dial key or the second dial key is rotated, and the control module issuing a control instruction to shift speed when the contact is in contact and connected with the first dial key trigger portion; A battery is located in the installation space, and the battery is used to supply power to the control module.

2. The speed control device according to claim 1, wherein: The dial key is further provided with a collapsed portion, which is located between the first dial key and the second dial key. The thickness of the collapsed portion is smaller than that of the first dial key and the second dial key. A rotating shaft is connected below the collapsed portion, and the dial key is rotatably connected to the mounting seat via the rotating shaft.

3. The speed control device according to claim 2, wherein: Reset mechanisms are provided at both ends of the rotating shaft, and the reset mechanisms are used to reset the dial key after the dial key is rotated.

4. The speed change control device according to claim 3, characterized in that: The first dial key is a platform structure, the second dial key is a protruding structure, and the thickness of the second dial key is greater than that of the first dial key.

5. The speed control device according to claim 1, wherein: A touch-sensitivity enhancement mechanism is provided below the dial key, and the touch-sensitivity enhancement mechanism is used to enhance the touch sense when dialing the key.

6. The speed control device according to claim 5, characterized in that: The touch enhancement mechanism includes a cover plate, which is connected to the mounting seat. A second key trigger portion is provided on the cover plate. The second key trigger portion is adapted in shape to the first key trigger portion. The second key trigger portion is made of soft rubber material. When the first key or the second key is rotated, the second key trigger portion is squeezed by the first key trigger portion and contacts the contact point.

7. The speed change control device according to claim 1, wherein: An extension line of the center point between the contacts is perpendicular to an extension line of the dial key axis.

8. The speed change control device according to claim 1, wherein: The battery is located within the projection of the control module.

9. The speed control device according to claim 8, characterized in that: The contacts are all located within the projection of the battery.

10. A riding device comprising a body, a handlebar provided on the body, and a brake lever provided on the handlebar, wherein: The brake lever is provided with a speed control device as described in any one of claims 1 to 9.