A bicycle warning device

By installing a motor-driven indicator module and LED lights on the bicycle, the problem of the single warning effect of bicycle reflective modules is solved, enabling the function of providing turning information to vehicles behind and improving the safety of nighttime driving.

CN224409470UActive Publication Date: 2026-06-26JIAXING SUDU INTELLIGENT MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAXING SUDU INTELLIGENT MANUFACTURING CO LTD
Filing Date
2025-07-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing bicycle reflective modules offer only a limited warning effect and cannot provide more driving information to vehicles behind, thus failing to meet usage needs.

Method used

A bicycle warning device was designed, including a motor and an indicator module installed in the mounting cavity on the seat post. The transmission module drives the magnet to rotate, so that the indicator module can rotate clockwise or counterclockwise. Combined with LED lights and reflective stickers, it provides left or right turn information.

Benefits of technology

It improves the safety of bicycles at night or in poor lighting conditions, and provides steering information to vehicles behind by rotating the indicator module, thus enhancing the warning effect.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224409470U_ABST
    Figure CN224409470U_ABST
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Abstract

The utility model provides a bicycle warning device relates to vehicle safety technical field, and this bicycle warning device includes seat pipe, installation cavity, motor, indication module, main shaft, and the output end of motor and one end in main shaft are located in the installation cavity are driven through transmission module, and transmission module includes two transmission parts, and transmission part includes mounting plate, and the mounting plate in two transmission parts is connected with the output end of motor and one end of main shaft respectively, and the side circumference array of mounting plate is equipped with a plurality of installation groove, and the inside installation of installation groove has magnet block, and the magnetic pole of adjacent two magnet blocks same side is opposite, this kind of bicycle warning device when using, not only can play the warning effect to the vehicle behind through indication module, but also can provide the information that the vehicle will turn left or right for the vehicle behind through the rotation of clockwise or counterclockwise of control indication module, thereby improve the safety of bicycle driving on the road, and the use effect is good.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle safety technology, specifically a bicycle warning device. Background Technology

[0002] When cycling at night, existing bicycles usually have a reflective module installed at the rear to make it easier for vehicles behind to see the vehicle in front. When the light emitted by the vehicle behind shines on the reflective module, the reflected light will remind the vehicle behind. However, because the warning effect of this type of reflective module is relatively simple, it cannot provide more driving information to the vehicle behind, and it is difficult to meet the needs of use. Utility Model Content

[0003] The purpose of this invention is to provide a bicycle warning device that aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The bicycle warning device includes a mounting cavity installed on the bicycle seat post. A motor is installed inside the mounting cavity, and an indicator module is installed on the outside of the mounting cavity. The indicator module is rotatably connected to the mounting cavity via a main shaft. One end of the main shaft is located inside the mounting cavity. The output end of the motor and the end of the main shaft located inside the mounting cavity are driven by a transmission module. The transmission module includes two transmission components, each including a mounting plate. The mounting plates of the two transmission components are respectively connected to the output end of the motor and one end of the main shaft. A plurality of mounting slots are arranged in a circumferential array on one side of the mounting plate. Magnet blocks are installed inside the mounting slots, and the magnetic poles of two adjacent magnet blocks on the same side are opposite.

[0005] Preferably, a transparent baffle is provided on one side of the mounting cavity, and the indicator module is located between the baffle and the mounting cavity. One end of the baffle has two limiting plates. When one side of the indicator module contacts one of the limiting plates, the indicator module cannot continue to rotate along the original rotation direction.

[0006] Preferably, the indicator module is an indicator plate, the main shaft is fixedly connected to the indicator plate, and a reflective sticker is installed on the surface of the indicator plate.

[0007] Preferably, the indicator module is a light panel, the main shaft is connected to the light panel, and the light panel has LED light groups arranged in an arrow shape.

[0008] Preferably, the inner side of the baffle has a diffuse reflection coating.

[0009] The beneficial effects of this utility model are:

[0010] When in use, this bicycle warning device can not only warn vehicles behind through the indicator module, but also provide information to vehicles behind that the vehicle is about to turn left or right by controlling the clockwise or counterclockwise rotation of the indicator module, thereby improving the safety of bicycles on the road and having a good effect. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0012] Figure 2 This is a schematic diagram of the internal structure of the mounting cavity.

[0013] Figure 3 This is a structural diagram of the mounting plate.

[0014] Figure 4 This is a structural diagram of the mounting cavity and baffle.

[0015] Figure 5 This is a structural diagram of the mounting cavity and the indicator module.

[0016] Figure 6 This is a schematic diagram showing the indicator module rotating left and right.

[0017] In the diagram: 1. Seat tube; 2. Power module; 3. Mounting cavity; 4. Motor; 5. Indicator module; 6. Spindle; 7. Mounting plate; 8. Magnet block; 9. Baffle; 10. Limiting plate. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0019] like Figure 1-6 As shown, a bicycle warning device includes a mounting cavity 3 installed on a bicycle seat post 1. A motor 4 is disposed inside the mounting cavity 3, and an indicator module 5 is disposed outside the mounting cavity 3. The indicator module 5 is rotatably connected to the mounting cavity 3 via a main shaft 6. One end of the main shaft 6 is located inside the mounting cavity 3. The output end of the motor 4 and the end of the main shaft 6 located inside the mounting cavity 3 are driven by a transmission module. The transmission module includes two transmission components, each including a mounting plate 7. The mounting plate 7 of the two transmission components is connected to the output end of the motor 4 and one end of the main shaft 6, respectively. A plurality of mounting slots are arranged in a circumferential array on one side of the mounting plate 7. Magnet blocks 8 are installed inside the mounting slots, and the magnetic poles of two adjacent magnet blocks 8 on the same side are opposite.

[0020] This type of bicycle warning device needs to be installed on a bicycle with power assist function. A power module 2 is installed on the seat post 1. The power module 2 includes a housing, which is welded to the seat post 1 as a whole. The power supply unit in the power module 2 is located inside the housing. The power module 2 is used to provide power to the warning device.

[0021] Mounting cavity 3 is also made of metal and is fixed to seat tube 1 by welding.

[0022] When the indicator module 5 is rotated by the motor 4, the motor 4 needs to be started. The motor 4 drives the mounting plate 7 at its output end to rotate, and drives the magnet block 8 inside the mounting plate 7 to rotate. Since the main shaft 6 is also equipped with a mounting plate 7 and a magnet block 8, based on the principle of like poles repelling and unlike poles attracting between the magnet blocks 8, when the motor 4 drives the mounting plate 7 to rotate, the other mounting plate 7 will be driven to rotate by the attraction and pushing force of the magnet, which in turn drives the main shaft 6 to rotate, thereby driving the indicator module 5 to rotate.

[0023] The two adjacent mounting plates 7 are kept at a relatively close distance, so that the magnet blocks 8 between the two mounting plates 7 are kept at a relatively close distance. The distance between the magnet blocks 8 on the two adjacent mounting plates 7 is about 3-5mm. At the same time, the magnet blocks 8 have a high magnetic strength, so that when the motor 4 drives one of the mounting plates 7 to rotate, the other mounting plate 7 can also respond immediately and follow the rotation of the first mounting plate 7.

[0024] Three control buttons need to be installed on the handlebars of the bicycle: a left turn button, a right turn button, and a reset button. These three control buttons can control the motor 4. The left turn button is used to control the output end of the motor 4 to rotate 90° clockwise, the right turn button is used to control the output end of the motor 4 to rotate 90° counterclockwise, and the reset button is used to reset the output end of the motor 4. After the output end of the motor 4 is reset, the indicator module 5 is set vertically downward.

[0025] For example, when the cyclist is riding normally, the indicator module 5 is in a vertically downward position. At this time, the indicator module 5 can be used to warn vehicles behind, indicating that there is a bicycle ahead. In low light conditions during the day or at night, it can effectively warn vehicles behind. When the bicycle needs to turn left, the user can press the left turn button, which will cause the indicator module 5 to rotate clockwise. After the indicator module 5 has rotated, it is located on the left side of the cyclist, allowing vehicles behind or cyclists to quickly recognize that the bicycle is about to turn left. After the bicycle has turned left, the indicator module 5 can be reset by pressing the reset button. At this time, the indicator module 5 is located in the middle of the cyclist, and it provides left and right warnings to vehicles behind. When the bicycle turns right, the right turn module is pressed, and the indicator module 5 moves to the right side of the cyclist, making it easier for vehicles behind to recognize. After the right turn is completed, the reset button is pressed again to reset the indicator module 5.

[0026] Furthermore, a transparent baffle 9 is provided on one side of the mounting cavity 3, and the indicator module 5 is located between the baffle 9 and the mounting cavity 3. One end of the baffle 9 has two limiting plates 10. When one side of the indicator module 5 contacts one of the limiting plates 10, the indicator module 5 cannot continue to rotate along the original rotation direction.

[0027] The baffle 9 can shield and protect the indicator module 5. For example, when riding in the rain, if the bicycle's mudguard has a problem, such as falling off or being misaligned, mud and water can easily be thrown out by the rear wheel and onto the baffle 9. The baffle 9 can prevent a large amount of mud and water from splashing onto the indicator module 5, so that the indicator module 5 can still effectively indicate the vehicles behind when turning left or right.

[0028] Meanwhile, the limit plate 10 can restrict the rotation of the indicator module 5. When the indicator module 5 comes into contact with the limit plate 10, even if the output end of the motor 4 has a rotation error and continues to rotate a few degrees at a small angle, the indicator module 5 will not continue to rotate with the output end of the motor 4 because the two transmission components are connected by magnetic force. At the same time, the two transmission components are not in direct contact, so the motor 4 can be prevented from burning out.

[0029] The rotation of motor 4 can be controlled by receiving pulse signals from a microcontroller and combining them with a stepper motor 4 or an encoder to control the output of motor 4 to rotate at a predetermined angle. Alternatively, the rotation angle can be accurately controlled by cooperating with an angle sensor and motor 4. The rotation angle can also be achieved by cooperating with a servo motor 4, a driver, a controller, etc. The rotation angle of motor 4 has an error. If the error is within ±0.1°, it is considered that precise angle control has been achieved.

[0030] Furthermore, the indicator module 5 is an indicator plate, the main shaft 6 is fixedly connected to the indicator plate, and reflective stickers are installed on the surface of the indicator plate.

[0031] When the headlights of vehicles or streetlights behind illuminate the reflective sticker, the vehicles behind can recognize the indicator module 5. When the indicator module 5 is rotated clockwise or counterclockwise, the reflective sticker can also reflect light normally, thus playing a certain warning role.

[0032] Furthermore, the indicator module 5 is a light panel, and the main shaft 6 is connected to the light panel, which has LED light groups arranged in an arrow shape.

[0033] The LED lights on the light panel are powered by the power module 2. The LED lights can be turned on and off manually by the rider. When the LED lights need to be turned on, the rider can turn them on using the corresponding switch. When they do not need to be turned on, the rider can turn them off. The switch for controlling the LED lights can also be located on the handlebars, but it is located at one end of the handlebars, respectively, and controlled by the two hands to improve the convenience and safety of use.

[0034] Furthermore, the inner side of the baffle 9 has a diffuse reflection coating.

[0035] When the indicator module 5 is in a vertically downward state, the diffuse reflection coating on the inner side of the baffle 9 can diffusely reflect the light emitted by the LED light group, thereby enhancing the light diffusion range and improving the warning effect.

[0036] Meanwhile, when the indicator module 5 is in a vertically downward state, it occupies less space on the side of the baffle 9, thereby reducing the probability of external objects hitting the indicator module 5 and improving safety during use.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A bicycle warning device, characterized in that, The device includes a mounting cavity for installation on a bicycle seatpost. A motor is housed inside the mounting cavity, and an indicator module is located on the outside of the mounting cavity. The indicator module is rotatably connected to the mounting cavity via a main shaft. One end of the main shaft is located inside the mounting cavity. The output end of the motor and the end of the main shaft located inside the mounting cavity are driven by a transmission module. The transmission module includes two transmission components, each including a mounting plate. The mounting plate is connected to the output end of the motor and one end of the main shaft, respectively. A plurality of mounting slots are arranged in a circumferential array on one side of the mounting plate. Magnet blocks are installed inside the mounting slots, with adjacent magnet blocks having opposite magnetic poles on the same side.

2. The bicycle warning device according to claim 1, characterized in that, A transparent baffle is provided on one side of the mounting cavity. The indicator module is located between the baffle and the mounting cavity. One end of the baffle has two limiting plates. When one side of the indicator module contacts one of the limiting plates, the indicator module cannot continue to rotate in the original direction of rotation.

3. The bicycle warning device according to claim 2, characterized in that, The indicator module is an indicator plate, the main shaft is fixedly connected to the indicator plate, and a reflective sticker is installed on the surface of the indicator plate.

4. The bicycle warning device according to claim 2, characterized in that, The indicator module is a light panel, and the main shaft is connected to the light panel. The light panel has LED light groups arranged in an arrow shape.

5. The bicycle warning device according to claim 4, characterized in that, The inner side of the baffle has a diffuse reflection coating.