Variable-focus rotary reading lamp

Abstract

A variable-focus rotary reading lamp comprises a base, a rotary lamp assembly and an LED lamp are rotationally connected to the base, the rotary lamp assembly comprises a fixed lens, a movable lens and a track body which are coaxially arranged, and the track body is provided with a track used for axial reciprocating motion of the movable lens. The two ends of the movable lens are provided with driving parts abutting against the end faces of the rails, the movable lens rotates in the axial direction of the end faces of the rails through the driving parts to drive the focal length between the movable lens and the fixed lens to change regularly, and then the irradiation area of the reading lamp changes accordingly. Through the mechanical linkage of the rotating rod and the track body, the rotating action of the lamp holder is directly converted into the axial displacement of the movable lens, and the focal length can be accurately adjusted through single-hand rotation. Compared with traditional linear push-and-pull zooming, rotation operation better conforms to ergonomics, the structural compactness is remarkably improved, and the installation requirement of a narrow space in a vehicle is better met.

Description

Technical Field

[0001] This utility model relates to a variable focus rotating reading light, belonging to the field of vehicle-mounted equipment. Background Technology

[0002] Interior reading lights are lighting devices installed inside a car (such as above the driver's seat, the middle top of the rear seat, or the door area). They are mainly used to provide local lighting for passengers to facilitate reading or finding items at night or in low light conditions, while avoiding affecting the driver's vision.

[0003] The lighting fixtures commonly used in current automotive interiors have relatively fixed designs, making it difficult to adjust the direction and intensity of the light according to user needs. This mainly presents the following problems:

[0004] 1. Fixed light angle: It is difficult to meet the personalized needs of different passengers.

[0005] 2. Lack of zoom function: Light cannot be freely switched between focusing and scattering, affecting the versatility of usage scenarios.

[0006] 3. Operational complexity: The switch design of most vehicle lights is inconvenient, affecting the driving or user experience. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a variable focus rotating reading lamp.

[0008] A variable-focus rotating reading light includes a base on which a rotating light assembly and an LED light are rotatably connected. The rotating light assembly includes a fixed lens, a movable lens, and a track body arranged coaxially. The track body has a track for the axial reciprocating motion of the movable lens. The movable lens has driving parts at both ends that abut against the end faces of the track. The movable lens rotates axially along the end faces of the track through the driving parts, causing the focal length between the movable lens and the fixed lens to change regularly, thereby changing the illumination area of ​​the reading light accordingly.

[0009] Through the mechanical linkage between the rotating rod and the track, the rotation of the lamp head is directly converted into the axial displacement of the moving lens, allowing for precise focus adjustment with a single hand. Compared to traditional linear push-pull zoom, the rotation operation is more ergonomic and significantly improves structural compactness, better adapting to the installation needs of confined spaces in vehicles. Rotating the lamp head adjusts its direction, accommodating various in-vehicle usage scenarios such as reading and ambient lighting. It allows switching between focused (local lighting) and diffused (wide-area lighting) modes to enhance comfort. The combination of the rotating lamp assembly and the track makes the system compact, suitable for various vehicle models, and its layout can be flexibly adjusted according to different installation locations (such as the roof, seat side, door, etc.), enhancing the product's versatility.

[0010] Preferably, the movable lens is fixed on the rotating body, and the rotating body has first fixing grooves on both sides for engaging with the drive unit.

[0011] The first fixing slots on both sides of the rotating body can be firmly engaged with the drive unit, allowing the force of the drive unit to be transmitted to the rotating body more precisely. This, in turn, controls the smooth axial movement of the moving lens, achieving more precise focus adjustment. The snap-fit ​​fixing slot design makes the installation and removal of the moving lens and drive unit more convenient, making repair or replacement of parts more efficient and reducing maintenance costs.

[0012] Furthermore, a lamp head is fixedly mounted on the rotating body by a snap fastener, and a lampshade made of transparent material is fixed on the lamp head.

[0013] The snap-on fixing method allows for easy assembly and disassembly of the lamp holder, facilitating lampshade replacement or maintenance and improving product maintainability and user experience. The transparent lampshade effectively transmits light, ensuring unobstructed light while reducing light loss and improving illumination brightness and uniformity. The lampshade not only protects against dust and water, reducing the impact of the external environment on the internal optical components of the lamp, but also protects the lens from damage, enhancing the lamp's durability.

[0014] Preferably, the rotating lamp assembly further includes a rotating lamp housing and a rotating base rotatably mounted on the base. The track body is fixedly disposed inside the rotating lamp housing. Track pins are provided on both sides of the rotating lamp housing. The rotating body is provided with a feedback groove arranged in a wave-like circumferential pattern. A protrusion is provided at the top of the track pin to abut against the feedback groove. A spring is provided inside the track pin for the protrusion to continuously abut against the feedback groove.

[0015] The rotating lamp housing can swivel around the rotating base, allowing the lamp to be adjusted at multiple angles to suit different usage needs. The feedback groove is wave-shaped, with each peak or trough acting as a stable locking point, providing clear feedback when adjusting the rotation angle, improving the feel and accuracy of use. The top of the track pin has a protrusion that is always pressed upward by an internal spring, continuously abutting against the wave-shaped feedback groove.

[0016] Furthermore, the track pin is provided with a first positioning protrusion, the rotating lamp housing is provided with a second positioning protrusion, and the two ends of the spring are respectively sleeved and fixed on the first positioning protrusion and the second positioning protrusion.

[0017] By providing a first positioning protrusion inside the track pin and a second positioning protrusion inside the rotating lamp housing, the two ends of the spring can be fixed to the two protrusions respectively, ensuring that the spring will not be misaligned or loosened during operation. The spring is connected between the two positioning protrusions. When the rotating lamp housing is rotated, the spring will generate tensile or compressive force. After the user releases the handle, it can provide an appropriate rebound force to return the lamp housing to the preset angle.

[0018] Furthermore, the rotating base is provided with a micro switch for controlling the opening and closing of the LED light, and the rotating lamp housing is provided with an annular mounting groove. The bottom of the lamp head extends into the mounting groove and has a gap with the bottom of the mounting groove, so that when the lamp head is pressed, it can drive the rotating body to move axially together to trigger the micro switch.

[0019] This design utilizes the base of the lamp head extending into the mounting groove, leaving a gap between it and the bottom of the groove. This allows the lamp head to move axially when pressed, triggering a microswitch. By pressing the lamp head to trigger the microswitch, users can directly turn the LED light on and off without needing to find a separate switch, improving the convenience of one-handed operation, especially suitable for quick adjustments while driving or riding. The push-button switch design avoids interfering with driving, ensuring safety.

[0020] Furthermore, the bottom of the rotating body extends into the track body and is provided with a pressing arm. The bottom of the track body is provided with a pressing surface that abuts against the pressing arm. The micro switch is located at the bottom of the track body. When the lamp head is pressed, the rotating body drives the track body to move axially, thereby triggering the micro switch.

[0021] Because the actuating surface and actuating arm act as a transition, the microswitch is not directly subjected to external impact, reducing wear and ensuring long-term reliability. The inclined plane transmission mechanism optimizes force transmission efficiency, ensuring reliable switch triggering under different operating forces. The precisely matched linkage mechanism significantly shortens response time and improves user experience consistency.

[0022] Furthermore, the outer periphery of the rotating base is snapped into the rotating lamp housing by a buckle, and the bottom of the rotating base is provided with an arc groove with an opening at the bottom of the arc groove. A pressure block is installed in the arc groove, and the pressure block is fixedly connected to the base bolt through the opening.

[0023] The bottom of the arc-shaped groove has an opening, through which the pressure block is fixed to the base bolt, forming a more stable locking structure to prevent the rotating base from loosening after long-term use.

[0024] Furthermore, a first O-ring and a second O-ring are respectively provided on the upper and lower sides of the opening, the pressure block is in the shape of a semi-circle matching the arc groove, and the bottom of the base is provided with a rim that surrounds the outside of the arc groove so that the rotating base can swing left and right along the axis. The curvature of the rim is greater than the curvature of the arc groove.

[0025] O-rings are typically made of silicone or rubber, offering excellent shock absorption. They reduce displacement or loosening of the rotating base caused by vehicle vibrations or impacts, improving durability. During vehicle operation, direct contact between metal or plastic components can generate friction noise; the O-ring's cushioning effect eliminates noise from component collisions, enhancing the user experience. O-rings also prevent dust and moisture from entering the curved groove, preventing long-term accumulation that could affect the flexibility of the rotating mechanism or damage electronic components. The semi-circular structure that fits tightly with the curved groove ensures smoother adjustment of the rotating base when adjusting lighting angles, avoiding jamming or uneven resistance. The curvature of the rim is greater than that of the curved groove, meaning the rotating base remains constrained by the rim when swinging left and right, ensuring its rotation angle remains within a reasonable range without excessive tilting or loss of support.

[0026] Furthermore, the rotating base is equipped with a circuit board, and the micro switch and LED light are electrically connected to the circuit board.

[0027] Because the micro switch is directly integrated into the circuit board and controlled in conjunction with the LED light, it can provide more accurate trigger feedback, avoiding malfunctions or delays caused by unstable mechanical contact.

[0028] The beneficial effects of this utility model are as follows: Through the mechanical linkage between the rotating rod and the track, the rotation of the lamp head is directly converted into the axial displacement of the moving lens, enabling precise focus adjustment with a single hand. Compared to traditional linear push-pull zoom, the rotation operation is more ergonomic, and the structure is significantly more compact, better adapting to the installation needs of confined spaces in vehicles. Rotating to adjust the lamp head direction adapts to various in-vehicle usage scenarios, such as reading and ambient lighting. Focusing (local lighting) or diffused (wide-area lighting) can be switched as needed, improving comfort. The combination of the rotating lamp assembly and the track makes the system compact, suitable for various vehicle models, and the layout can be flexibly adjusted according to different installation locations (such as the roof, seat side, door, etc.), enhancing the product's applicability. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0030] Figure 1 This is a structural diagram of the main body of this utility model;

[0031] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0032] Figure 3 This is an exploded view of the present invention;

[0033] Figure 4 for Figure 3 Exploded view of the middle section of the structure;

[0034] Figure 5 This is a structural diagram of the rotating lamp housing in this utility model;

[0035] In the diagram, 1. Base; 11. Edge; 2. Rotating lamp assembly; 21. Fixed lens; 22. Moving lens; 221. Drive unit; 23. Track body; 231. Track; 232. Pressing surface; 24. Rotating body; 241. First fixing groove; 242. Buckle; 243. Feedback groove; 244. Pressing arm; 25. Lamp head; 26. Lamp cover; 3. Rotating lamp housing; 31. Second positioning protrusion; 32. Mounting groove; 4. Track pin; 41. Protrusion; 42. Spring; 43. First positioning protrusion; 5. Rotating base; 51. Arc groove; 52. Opening; 53. First O-ring; 54. Second O-ring; 6. Pressure block; 7. Circuit board; 71. Micro switch; 72. LED light. Detailed Implementation

[0036] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0037] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0038] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0039] like Figure 1-5As shown, this is an embodiment of a variable-focus rotating reading lamp of the present invention, including a base 1. A rotating lamp assembly 2 and an LED lamp 72 are rotatably connected to the base 1. The rotating lamp assembly 2 includes a fixed lens 21, a movable lens 22, and a track body 23 arranged coaxially. The track body 23 is provided with a track 231 for the axial reciprocating motion of the movable lens 22. The movable lens 22 has driving parts 221 at both ends that abut against the end faces of the track 231. The movable lens 22 rotates axially along the end faces of the track 231 through the driving parts 221, driving the focal length between the movable lens 22 and the fixed lens 21 to change regularly, thereby changing the illumination area of ​​the reading lamp accordingly.

[0040] Through the mechanical linkage between the rotating rod and the track body 23, the rotation of the lamp head 25 is directly converted into the axial displacement of the moving lens 22, enabling precise focus adjustment with a single hand. Compared to traditional linear push-pull zoom, the rotation operation is more ergonomic and significantly improves structural compactness, better adapting to the installation needs of confined spaces in vehicles. Rotating the lamp head 25 adjusts its direction to suit various in-vehicle usage scenarios, such as reading and ambient lighting. Focused (local lighting) or diffused (wide-area lighting) can be switched as needed, enhancing comfort. The combination of the rotating lamp assembly 2 and the track body 23 results in a compact system structure suitable for various vehicle models, and the layout can be flexibly adjusted according to different installation locations (such as the roof, seat side, door, etc.), enhancing the product's applicability.

[0041] The movable lens 22 is fixed on the rotating body 24, and the rotating body 24 has first fixing grooves 241 on both sides for engaging with the drive unit 221.

[0042] The first fixing slots 241 on both sides of the rotating body 24 can be firmly engaged with the drive unit 221, so that the force of the drive unit 221 can be transmitted to the rotating body 24 more accurately, thereby controlling the moving lens 22 to move smoothly along the axial direction and achieving more precise focus adjustment. Through the snap-fit ​​fixing slot design, the installation and disassembly of the moving lens 22 and the drive unit 221 are more convenient, making maintenance or replacement of parts more efficient and reducing maintenance costs.

[0043] The lamp head 25 is fixedly sleeved on the outside of the rotating body 24 by a buckle 242, and a lamp cover 26 made of transparent material is fixed on the lamp head 25.

[0044] The snap-fit ​​fastener 242 allows for easy assembly and disassembly of the lamp holder 25, facilitating replacement of the lampshade 26 or maintenance, thus improving product maintainability and user experience. The transparent lampshade 26 effectively transmits light, ensuring unobstructed light while reducing light loss and improving illumination brightness and uniformity. The lampshade 26 not only provides dust and water protection, reducing the impact of the external environment on the internal optical components of the luminaire, but also protects the lens from damage, enhancing the luminaire's durability.

[0045] The rotating lamp assembly 2 also includes a rotating lamp housing 3 and a rotating base 5 rotatably mounted on the base 1. The track body 23 is fixedly installed inside the rotating lamp housing 3. The rotating lamp housing 3 is provided with track pins 231 on both sides. The rotating body 24 is provided with a feedback groove 243 arranged in a wave-like circumferential direction. The top of the track pin 231 is provided with a protrusion 41 that abuts against the feedback groove 243. The track pin 231 is provided with a spring 42 for the protrusion 41 to continuously abut against the feedback groove 243.

[0046] The rotating lamp housing 3 can rotate around the rotating base 5, allowing the lamp to be adjusted at multiple angles to adapt to different usage needs. The feedback groove 243 is wave-shaped, with each peak or trough acting as a stable locking point, providing clear feedback when adjusting the rotation angle, improving the feel and accuracy of use. The top of the pin on the track 231 has a protrusion 41, which is always pressed upward by the internal spring 42, continuously abutting against the wave-shaped feedback groove 243.

[0047] The track 231 has a first positioning protrusion 43 inside the pin, and the rotating lamp housing 3 has a second positioning protrusion 31 inside the housing. The two ends of the spring 42 are respectively sleeved and fixed on the first positioning protrusion 43 and the second positioning protrusion 31.

[0048] By providing a first positioning protrusion 43 inside the pin of track 231 and a second positioning protrusion 31 inside the rotating lamp housing 3, the two ends of the spring 42 can be fixed on the two protrusions respectively, ensuring that the spring 42 will not be misaligned or loosened during operation. The spring 42 is connected between the two positioning protrusions. When the rotating lamp housing 3 is rotated, the spring 42 will generate tensile or compressive force. After the user releases the handle, it can provide an appropriate rebound force to return the lamp housing to the preset angle.

[0049] The rotating base 5 is provided with a micro switch 71 for controlling the opening and closing of the LED lamp 72. The rotating lamp housing 3 is provided with an annular mounting groove 32. The bottom of the lamp head 25 extends into the mounting groove 32 and has a gap with the bottom of the mounting groove 32, so that when the lamp head 25 is pressed, it can drive the rotating body 24 to move axially together to trigger the micro switch 71.

[0050] This design utilizes the extension of the lamp head 25 into the mounting groove 32, with a gap between the lamp head 25 and the bottom of the mounting groove 32. This allows the lamp head 25 to move axially along the rotating body 24 when pressed, thereby triggering the micro switch 71. By pressing the lamp head 25 to trigger the micro switch 71, users can directly press the lamp head 25 to turn the LED light 72 on and off without needing to find a separate switch, improving the convenience of one-handed operation, especially suitable for quick adjustments while driving or riding. The push-button switch design avoids interfering with driving and ensures safety.

[0051] The bottom of the rotating body 24 extends into the track body 23 and is provided with a pressing arm 244. The bottom of the track body 23 is provided with a pressing surface 232 that abuts against the pressing arm 244. The micro switch 71 is located at the bottom of the track body 23. When the lamp head 25 is pressed, the rotating body 24 drives the track body 23 to move axially, thereby triggering the micro switch 71.

[0052] Because the actuating surface 232 and the actuating arm 244 act as a transition, the micro switch 71 is not directly subjected to external impact, reducing wear and ensuring long-term reliability. The inclined plane transmission mechanism optimizes force transmission efficiency, ensuring reliable switch triggering under different operating forces. The precisely matched linkage mechanism significantly shortens response time and improves user experience consistency.

[0053] The outer periphery of the rotating base 5 is snapped to the rotating lamp housing 3 by a buckle 242. The bottom of the rotating base 5 is provided with an arc groove 51 and an opening 52 at the bottom of the arc groove 51. A pressure block 6 is installed in the arc groove 51 and the pressure block 6 is bolted to the base 1 through the opening 52.

[0054] The bottom of the arc-shaped groove 51 has an opening 52. The pressure block 6 is bolted to the base 1 through the opening 52 to form a more stable locking structure and prevent the rotating base 5 from loosening after long-term use.

[0055] The opening 52 is provided with a first O-ring 53 and a second O-ring 54 on the upper and lower sides respectively. The pressure block 6 is a semi-circle that matches the arc groove 51. The bottom of the base 1 is provided with a rim 11 that surrounds the outside of the arc groove 51 so that the rotating base 5 can swing left and right along the axis. The curvature of the rim 11 is greater than the curvature of the arc groove 51.

[0056] O-rings are typically made of silicone or rubber, offering excellent shock absorption. They reduce displacement or loosening of the rotating base 5 caused by vehicle vibration or impact, improving durability. During vehicle operation, direct contact between metal or plastic components can generate frictional noise; the O-ring's cushioning effect eliminates abnormal noises caused by component collisions, enhancing the user experience. O-rings also prevent dust and moisture from entering the arc-shaped groove 51, preventing long-term accumulation that could affect the flexibility of the rotating mechanism or damage electronic components. The semi-circular structure that fits tightly with the arc-shaped groove 51 ensures smoother adjustment of the rotating base 5 when adjusting the lighting angle, avoiding jamming or uneven resistance. The curvature of the rim 11 is greater than that of the arc-shaped groove 51, meaning that the rotating base 5 remains constrained by the rim 11 when swinging left and right, ensuring its rotation angle remains within a reasonable range without excessive tilting or loss of support.

[0057] The rotating base 5 contains a circuit board 7, and a micro switch 71 and an LED light 72 are electrically connected and mounted on the circuit board 7.

[0058] Since the micro switch 71 is directly integrated into the circuit board 7 and linked with the LED light 72 for control, it can provide more accurate trigger feedback and avoid malfunctions or delays caused by unstable mechanical contact.

[0059] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

[0060] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A variable-focus rotating reading lamp, characterized in that: The device includes a base on which a rotating lamp assembly and an LED light are rotatably connected. The rotating lamp assembly includes a fixed lens, a movable lens, and a track body arranged coaxially. The track body has a track for the axial reciprocating motion of the movable lens. The movable lens has driving parts at both ends that abut against the end face of the track. The movable lens rotates axially along the end face of the track through the driving parts, causing the focal length between the movable lens and the fixed lens to change regularly, thereby changing the illumination area of ​​the reading lamp accordingly.

2. The variable focus rotating reading lamp as described in claim 1, characterized in that: The movable lens is fixed on the rotating body, and the rotating body has first fixing grooves on both sides for engaging with the drive unit.

3. The variable focus rotating reading lamp as described in claim 2, characterized in that: The rotating body is fitted with a lamp head via a snap fastener, and a lampshade made of transparent material is fixed to the lamp head.

4. The variable focus rotating reading lamp as described in claim 1, characterized in that: The rotating lamp assembly also includes a rotating lamp housing and a rotating base that are rotatably mounted on the base. The track body is fixedly installed inside the rotating lamp housing. Track pins are provided on both sides of the rotating lamp housing. The rotating body is provided with a feedback groove arranged in a wave-like circumferential pattern. The top of the track pin is provided with a protrusion that abuts against the feedback groove. A spring is provided inside the track pin for the protrusion to continuously abut against the feedback groove.

5. The variable focus rotating reading lamp as described in claim 4, characterized in that: The track pin has a first positioning protrusion, the rotating lamp housing has a second positioning protrusion, and the two ends of the spring are respectively sleeved and fixed on the first positioning protrusion and the second positioning protrusion.

6. The variable focus rotating reading lamp as described in claim 4, characterized in that: The rotating base is equipped with a micro switch for controlling the opening and closing of the LED light. The rotating lamp housing is provided with an annular mounting groove. The bottom of the lamp head extends into the mounting groove and has a gap with the bottom of the mounting groove, so that when the lamp head is pressed, it can drive the rotating body to move axially together to trigger the micro switch.

7. The variable focus rotating reading lamp as described in claim 6, characterized in that: The bottom of the rotating body extends into the track body and is provided with a push arm. The bottom of the track body is provided with a push surface that abuts against the push arm. The micro switch is located at the bottom of the track body. When the lamp head is pressed, the rotating body drives the track body to move axially, thereby triggering the micro switch.

8. The variable focus rotating reading lamp as described in claim 4, characterized in that: The outer periphery of the rotating base is snapped into the rotating lamp housing by a buckle. The bottom of the rotating base is provided with an arc groove and an opening at the bottom of the arc groove. A pressure block is installed in the arc groove and the pressure block is fixedly connected to the base bolt through the opening.

9. The variable focus rotating reading lamp as described in claim 8, characterized in that: The opening is provided with a first O-ring and a second O-ring on the upper and lower sides respectively. The pressure block is a semi-circle that matches the arc groove. The bottom of the base is provided with a rim that surrounds the outside of the arc groove so that the rotating base can swing left and right along the axis. The curvature of the rim is greater than the curvature of the arc groove.

10. The variable focus rotating reading lamp as described in claim 4, characterized in that: The rotating base contains a circuit board, on which microswitches and LED lights are electrically connected.

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