Self-adjusting front lamp for cycling safety
The cycling headlights that automatically adjust brightness using light sensors and control elements, combined with a 'lever-slot' structure and clamping mechanism, solve the problem of insufficient brightness and angle adjustment in traditional cycling headlights, thus improving cycling safety and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN KENNAMETAL TECHNOLOGY CO LTD
- Filing Date
- 2025-10-17
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional cycling headlights cannot automatically adjust their brightness according to changes in ambient light, and the angle adjustment mechanism lacks damping design, resulting in insufficient lighting or excessive glare, affecting cycling safety and user experience.
It uses light-sensing and control elements to automatically adjust the brightness of LED beads, and achieves multi-level angle adjustment through a 'lever-slot' structure and spring reset design. Combined with a clamping mechanism, it ensures that the lamp housing is firmly fixed to the handlebars to prevent angle deviation.
It achieves suitable lighting under different lighting conditions, improving riding safety and battery life. At the same time, it is simple and quick to operate, and the angle adjustment is precise and stable, preventing the lamp head from shifting.
Smart Images
Figure CN224551353U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cycling equipment technology, and more specifically, it relates to a self-adjusting headlight for cycling safety. Background Technology
[0002] Cycling, as a green mode of transportation, relies on efficient lighting systems for safety. Cycling headlights need to provide appropriate brightness under different ambient light conditions (such as strong daylight, weak twilight, dim nightlight, and darkness in tunnels), and the beam angle needs to be adjusted according to the cycling scenario (such as flat roads, uphill, and downhill) to ensure that road obstacles and signs are clearly visible, preventing accidents such as collisions and falls caused by insufficient lighting or angular deviations. With the popularization of cycling and the development of smart equipment, traditional cycling headlights are gradually revealing their insufficient functional adaptability, making it difficult to meet the safety needs of diverse cycling scenarios.
[0003] Traditional bicycle headlights mostly use a fixed brightness design, failing to automatically adjust brightness according to changes in ambient light. This results in insufficient brightness in low light or excessive glare in bright light, affecting not only the rider's vision but also potentially interfering with pedestrians and other vehicles. Furthermore, existing headlight angle adjustment mechanisms typically use simple bolt fastening or clip locking methods, lacking damping design. This makes precise positioning during adjustment difficult, and once locked, they are susceptible to vibration, causing the lighting direction to shift. Therefore, there is an urgent need for a cycling safety headlight with highly sensitive automatic brightness adjustment, a stable mounting structure, and multi-level damping angle locking to solve these technical problems and improve cycling safety and user experience. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a self-adjusting headlight for cycling safety, which is achieved by the following specific technical means:
[0005] A self-adjusting headlight for cycling safety includes a lamp housing and a mounting assembly disposed below the lamp housing. The lamp housing contains a light source assembly, a light sensor, and a control element. A light-transmitting hole is formed on the upper surface of the lamp housing. The light sensor is located directly below the light-transmitting hole. A transparent plate is sealed at the upper end of the light-transmitting hole. The light sensor is electrically connected to the control element, and the control element is electrically connected to the light source assembly to adjust the brightness of the light source assembly according to the ambient light intensity. A connecting part is fixedly mounted at the bottom of the lamp housing. A connecting shaft is fixedly passed through the connecting part and rotatably connected to an upper clamping plate in the mounting assembly to achieve lamp housing angle adjustment. A U-shaped groove is formed on the surface of the connecting part, and a rectangular groove is formed on the sidewall of the U-shaped groove. The upper clamping plate has two circular plates fixedly installed at both ends. Each circular plate has several slots equidistantly spaced on its outer surface. A limit block is slidably installed in the rectangular groove. A locking rod is fixedly connected to the limit block. The two ends of the locking rod are respectively locked into the slots to lock the lamp housing and adjust the angle. A cylinder moves through the limit block. A spring is sleeved on the cylinder. The limit block is fixedly connected to the inner wall of the rectangular groove through the spring. Circular blocks are fixedly installed at both ends of the connecting shaft. Circular grooves are opened on the opposite surfaces of the two circular plates. The circular blocks are rotatably installed in the circular grooves. Spring top beads are embedded in the circular blocks. The inner wall of the circular grooves has grooves with the same number of slots. The top beads of the spring top beads are locked into the grooves to form angle adjustment damping.
[0006] Furthermore, the light source assembly includes a light board with LED beads disposed on it.
[0007] Furthermore, the transparent plate is made of polycarbonate, the upper surface of the transparent plate is flush with the upper surface of the lamp housing, and a sealing layer is provided between the transparent plate and the inner wall of the light-transmitting hole.
[0008] Furthermore, the lamp housing contains a storage battery, which is electrically connected to the lamp source assembly, the light sensor, and the control components. The bottom of the lamp housing has a charging interface that is electrically connected to the storage battery, and the top of the lamp housing has a button for controlling the lamp source assembly.
[0009] Furthermore, the mounting assembly also includes a lower clamping plate, which is located below the upper clamping plate. A limiting plate that penetrates the upper clamping plate is installed at one end of the lower clamping plate, and a threaded rod that penetrates the lower clamping plate and is threadedly connected to the upper clamping plate is installed at the other end. Rubber pads are provided on the inner walls of both the upper and lower clamping plates.
[0010] Furthermore, the depth of the slot is adapted to the thickness of the end of the clamp rod; multiple spring beads are embedded in each round block, the spring beads are evenly distributed along the circumference of the round block, and the diameter of the spring beads is adapted to the groove diameter; the rubber pad is provided with anti-slip texture and is fixed to the inner wall of the clamp plate by adhesive bonding.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. By monitoring ambient light intensity in real time through a light sensor and automatically adjusting the brightness of the LED beads via a control element, suitable front illumination is ensured under any lighting conditions. Bright light automatically reduces brightness to avoid glare, while dim light enhances illumination to ensure clear visibility, greatly improving riding safety at night or in complex lighting conditions. Simultaneously, energy saving and extended battery life are achieved. 2. A "lever-slot" mechanical locking structure, combined with a spring reset design, enables multi-position adjustment and quick locking of the lamp housing angle. Adjustment is simple and quick; just pull the handle to unlock, and it automatically locks in place. The damping sensation generated by the spring-loaded ball and groove during adjustment facilitates precise positioning of the desired illumination angle. Once locked, the mechanical engagement is robust, effectively resisting vibrations and impacts during riding, preventing accidental lamp head angle deviation, and ensuring the stability of the lighting direction.
[0013] Second, the clamping mechanism, which uses upper and lower clamping plates in conjunction with threaded rods and limiting plates, can generate a strong and uniform clamping force, ensuring that the headlight can be firmly fixed to the handlebars under various road conditions and preventing slippage. The rubber pads with anti-slip texture on the inner wall of the clamping plates further enhance the friction, while the soft material buffers the transmission of vibration and protects the handlebar surface from being pinched or worn.
[0014] Third, the light-transmitting hole is made of a transparent polycarbonate plate with an added sealing layer, ensuring good light transmission and dust and water resistance, and extending the service life of the internal light sensor. A manual button is provided, allowing users to temporarily switch brightness between automatic and automatic modes as needed, offering flexible operation options. It is battery powered and equipped with a charging interface, making it convenient to use and highly versatile. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the entire self-adjusting headlight for cycling safety according to this utility model.
[0016] Figure 2 This is a schematic diagram of the storage battery of this utility model.
[0017] Figure 3 This is a schematic diagram of the light-transmitting hole of this utility model.
[0018] Figure 4 This is a cross-sectional view of the connecting part of this utility model.
[0019] Figure 5 This is a schematic diagram of the circular plate of this utility model cut open.
[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0021] 1. Lamp housing; 11. Lamp panel; 12. Battery; 13. Charging interface; 14. Button; 15. Light-transmitting hole; 16. Transparent plate; 2. Upper clamping plate; 21. Lower clamping plate; 22. Limiting plate; 23. Rubber pad; 24. Threaded rod; 3. Connecting part; 31. U-shaped groove; 32. Connecting shaft; 4. Locking rod; 41. Limiting block; 42. Cylinder; 43. Spring; 44. Handle; 5. Round plate; 51. Slot; 52. Circular groove; 53. Groove; 6. Round block; 61. Spring top bead. Detailed Implementation
[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Example:
[0026] As attached Figure 1 To be continued Figure 5 As shown:
[0027] This utility model provides a self-adjusting headlight for cycling safety, including a lamp housing 1 and a mounting assembly disposed below the lamp housing 1. The lamp housing 1 contains a light source assembly, a light sensor, and a control element. A light-transmitting hole 15 is formed on the upper surface of the lamp housing 1, and the light sensor is located directly below the light-transmitting hole 15. A transparent plate 16 is sealed and installed at the upper end of the light-transmitting hole 15. The light sensor is electrically connected to the control element, and the control element is electrically connected to the light source assembly to adjust the brightness of the light source assembly according to the ambient light intensity. A connecting part 3 is fixedly installed at the bottom of the lamp housing 1, and a connecting shaft 32 is fixedly passed through the connecting part 3. The connecting shaft 32 is rotatably connected to the upper clamping plate 2 in the mounting assembly to achieve angle adjustment of the lamp housing 1. A U-shaped groove 31 is formed on the surface of the connecting part 3, and a rectangular groove is formed on the side wall of the U-shaped groove 31. Circular plates 5 are fixedly installed at both ends of the upper clamping plate 2. Each circular plate... The outer surface of plate 5 has several slots 51 equidistantly spaced around its circumference. A limit block 41 is slidably installed in the rectangular slot. A lever 4 is fixedly connected to the limit block 41. Both ends of the lever 4 are fixedly installed with handles 44 for easy lifting. The two ends of the lever 4 are respectively inserted into the slots 51 to lock the lamp housing 1 and adjust the angle. A cylinder 42 is movably passed through the limit block 41. A spring 43 is sleeved on the cylinder 42. The limit block 41 is fixedly connected to the inner wall of the rectangular slot through the spring 43. Circular blocks 6 are fixedly installed at both ends of the connecting shaft 32. Circular slots 52 are opened on the opposite surfaces of the two circular plates 5. Circular blocks 6 are rotatably installed in the circular slots 52. Spring top beads 61 are embedded in the circular blocks 6. The inner wall of the circular slots 52 has grooves 53 with the same number as the slots 51. The top beads of the spring top beads 61 are inserted into the grooves 53 to form angle adjustment damping.
[0028] The light source assembly includes a light board 11, on which LED beads are disposed;
[0029] The transparent plate 16 is made of polycarbonate. The upper surface of the transparent plate 16 is flush with the upper surface of the lamp housing 1, and a sealing layer is provided between the transparent plate 16 and the inner wall of the light-transmitting hole 15.
[0030] The lamp housing 1 has a storage battery 12 inside. The storage battery 12 is electrically connected to the lamp source assembly, the light sensor, and the control components. The bottom of the lamp housing 1 has a charging interface 13 that is electrically connected to the storage battery 12. The upper part of the lamp housing 1 has a button 14 for controlling the lamp source assembly.
[0031] The mounting assembly also includes a lower clamping plate 21, which is located below the upper clamping plate 2. A limiting plate 22 that penetrates the upper clamping plate 2 is installed at one end of the lower clamping plate 21, and a threaded rod 24 that penetrates the lower clamping plate 21 and is threadedly connected to the upper clamping plate 2 is installed at the other end. Rubber pads 23 are provided on the inner walls of both the upper clamping plate 2 and the lower clamping plate 21.
[0032] The depth of the slot 51 is adapted to the thickness of the end of the clamp rod 4; 2-4 spring beads 61 are embedded in each round block 6, and the spring beads 61 are evenly distributed along the circumference of the round block 6, and the diameter of the spring beads 61 is adapted to the groove diameter of the groove 53; the rubber pad 23 has anti-slip texture and is fixed to the inner wall of the clamp by adhesive.
[0033] The working principle of this embodiment:
[0034] The light-transmitting hole 15 on the upper surface of the lamp housing 1 serves as an ambient light entry channel. The transparent plate 16 at its port ensures unobstructed light penetration while sealing against dust. The light-sensing element located directly below the light-transmitting hole 15 receives ambient light signals in real time. The light-sensing element uses an integrated ambient light sensor to convert light intensity information (such as strong light during the day, weak light at dusk, and dim light at night) into electrical signals. The light-sensing element transmits the electrical signals to the control element inside the lamp housing 1. The control element uses a microcontroller to analyze the light intensity data through a preset program. The control element controls the illumination brightness of the LED beads.
[0035] The lamp housing 1 is connected to the upper clamping plate 2 of the mounting assembly via the connecting part 3 at the bottom. The connecting shaft 32 on the connecting part 3 rotates with the upper clamping plate 2 to form the angle adjustment shaft of the lamp housing 1. During adjustment, first pull the handles 44 at both ends of the locking rod 4 upwards. The handles 44 drive the locking rod 4 and the limiting block 41 at the end to slide upwards along the rectangular groove. At this time, the limiting block 41 compresses the spring 43 on the cylinder 42, and the two ends of the locking rod 4 disengage from the locking groove 51 of the circular plate 5, releasing the angle lock. Then, the lamp housing 1 can be rotated around the connecting shaft 32 to adjust the illumination direction of the LED beads. During the adjustment process, the circular blocks 6 at both ends of the connecting shaft 32 rotate synchronously in the circular groove 52 of the circular plate 5, and the springs in the circular blocks 6... The spring-loaded ball 61 slides along the groove 53 on the inner wall of the circular groove 52. Each time it passes through a groove 53, it produces a "click" sensation, forming angle adjustment damping, which makes it easy for the user to accurately position the required angle (the number of grooves 53 is the same as the number of slots 51 to ensure that the adjustment gears match). When the lamp housing 1 is adjusted to the target angle, the handle 44 is released, the compressed spring 43 releases its elasticity, and pushes the limit block 41 and the locking rod 4 to reset downward along the rectangular groove. The two ends of the locking rod 4 are re-locked into the corresponding slots 51 of the circular plate 5. The mechanical engagement of the "locking rod 4-slot 51" restricts the rotation of the connecting part 3, thereby achieving a stable lock of the angle of the lamp housing 1 and preventing the angle from shifting due to riding bumps.
[0036] The lower clamp plate 21 of the mounting assembly cooperates with the upper clamp plate 2 to secure it to the bicycle handlebars: The handlebars are placed between the upper clamp plate 2 and the lower clamp plate 21. Rotating the threaded rod 24 at one end of the lower clamp plate 21 causes the threaded rod 24 to engage with the upper clamp plate 2, clamping the lower clamp plate 21 upwards. Simultaneously, the limiting plate 22 at the other end of the lower clamp plate 21 slides along the upper clamp plate 2, ensuring the clamps are parallel and clamped. The rubber pads 23 (with anti-slip texture) on the inner walls of the upper clamp plate 2 and the lower clamp plate 21 increase friction with the handlebars, preventing the clamps from slipping and cushioning riding vibrations. The lamp housing 1 protects the handlebar surface from being pinched; the battery 12 inside the lamp housing 1 provides DC power to the light sensor, control components, and lamp source assembly; when the battery 12 is low on power, it can be charged by an external power source through the charging port 13 at the bottom of the lamp housing 1; the button 14 on the top of the lamp housing 1 can be used as a supplement to manual operation: if the user needs to temporarily switch the brightness mode (such as in case of sudden darkness), the brightness of the lamp source assembly (LED beads on the lamp panel 11) can be forcibly adjusted by pressing the button 14, overriding the automatic adjustment mode and improving the flexibility of use.
[0037] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A self-adjusting headlight for cycling safety, characterized in that: The lamp housing (1) includes a lamp housing (1) and an installation assembly located below the lamp housing (1). Inside the lamp housing (1) are a lamp source assembly, a light sensor and a control element. A light-transmitting hole (15) is opened on the upper surface of the lamp housing (1). The light sensor is located directly below the light-transmitting hole (15). A transparent plate (16) is sealed and installed on the upper end of the light-transmitting hole (15). The light sensor is electrically connected to the control element, and the control element is electrically connected to the lamp source assembly to adjust the brightness of the lamp source assembly according to the ambient light intensity. The lamp housing (1) is fixedly installed with a connecting part (3) at the bottom. A connecting shaft (32) is fixedly passed through the connecting part (3). The connecting shaft (32) is rotatably connected to the upper clamping plate (2) in the mounting assembly to realize the angle adjustment of the lamp housing (1). A U-shaped groove (31) is opened on the surface of the connecting part (3). A rectangular groove is opened on the side wall of the U-shaped groove (31). A circular plate (5) is fixedly installed at both ends of the upper clamping plate (2). Several slots (51) are equidistantly opened on the outer circumference of each circular plate (5). A limit block (41) is slidably installed in the rectangular groove. A locking rod (4) is fixedly connected to the limit block (41). The two ends of the locking rod (4) are respectively inserted into the slots (51) to lock the angle adjustment of the lamp housing (1). A cylinder (42) is movably passed through the limit block (41). A spring (43) is sleeved on the cylinder (42). The limit block (41) is fixedly connected to the inner wall of the rectangular groove through the spring (43). The connecting shaft (32) has two fixed circular blocks (6) at both ends. Two circular plates (5) have circular grooves (52) on their opposite sides. The circular blocks (6) are rotatably installed in the circular grooves (52). Spring top beads (61) are embedded in the circular blocks (6). The inner wall of the circular grooves (52) has grooves (53) with the same number as the slots (51). The top beads of the spring top beads (61) are inserted into the grooves (53) to form angle adjustment damping.
2. The self-adjusting headlight for cycling safety as described in claim 1, characterized in that: The light source assembly includes a light board (11) on which LED beads are disposed.
3. The self-adjusting headlight for cycling safety as described in claim 1, characterized in that: The transparent plate (16) is made of polycarbonate. The upper surface of the transparent plate (16) is flush with the upper surface of the lamp housing (1), and a sealing layer is provided between the transparent plate (16) and the inner wall of the light-transmitting hole (15).
4. The self-adjusting headlight for cycling safety as described in claim 1, characterized in that: The lamp housing (1) is equipped with a storage battery (12). The storage battery (12) is electrically connected to the lamp source assembly, the light sensor, and the control element. The bottom of the lamp housing (1) is equipped with a charging interface (13) that is electrically connected to the storage battery (12). The upper part of the lamp housing (1) is equipped with a button (14) for controlling the lamp source assembly.
5. The self-adjusting headlight for cycling safety as described in claim 1, characterized in that: The mounting assembly also includes a lower clamping plate (21), which is located below the upper clamping plate (2). One end of the lower clamping plate (21) is equipped with a limiting plate (22) that penetrates the upper clamping plate (2), and the other end is equipped with a threaded rod (24) that penetrates the lower clamping plate (21) and is threadedly connected to the upper clamping plate (2). Both the upper clamping plate (2) and the lower clamping plate (21) have rubber pads (23) on their inner walls.
6. The self-adjusting headlight for cycling safety as described in claim 5, characterized in that: The groove (51) has a depth that matches the thickness of the end of the clamp (4); each round block (6) is embedded with a spring bead (61), the spring bead (61) is evenly distributed along the circumference of the round block (6), and the diameter of the spring bead (61) matches the diameter of the groove (53); the rubber pad (23) has anti-slip textures and is fixed to the inner wall of the clamp by adhesive bonding.