LED lighting fixture with adjustable light emitting range

Abstract

The present invention relates to the technical field of lighting devices, and specifically to an LED lighting fixture with an adjustable light-emitting range, comprising a mounting base, a lampshade, a light-emitting lamp board, a controller and a light-emitting angle adjuster, wherein the light-emitting angle adjuster has a fixed base plate distributed circumferentially along the central vertical line of the mounting base, and a synchronous deflection drive mechanism for synchronously driving all the fixed base plates to deflect from a side away from the central vertical line of the mounting base to an opposite side thereof, the light-emitting lamp board being arranged at the bottom end of the fixed base plate, and the lighting fixture in the present application, through the design of the light-emitting angle adjuster, enables the user to flexibly adjust the illumination angle of the light according to actual needs to meet the lighting needs of different scenes, and this flexibility makes the lighting effect more personalized and adaptable to various activities and environments.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting devices, and in particular to an LED lighting fixture with an adjustable light emitting range. Background Art

[0002] As a new type of lighting product, LED lamps have been used more and more widely in the lighting field. Traditional lighting equipment often uses incandescent bulbs or fluorescent tubes, which not only have high energy consumption and short service life, but also have certain limitations in terms of environmental protection. In contrast, LED lamps have gradually become the mainstream choice of modern lighting with their excellent energy-saving performance, environmental protection characteristics and service life of tens of thousands of hours.

[0003] Although LED lamps are superior to traditional lighting equipment in many aspects, the lighting range of most LED lamps on the market is not adjustable. This means that users cannot adjust the brightness and illumination range of the lamps according to specific lighting needs, which limits their application flexibility in different scenarios. In some specific environments, such as conference rooms, exhibition halls, and libraries, it is very important to adjust the brightness and lighting angle of the lamps according to the different needs of the activities. For example, in a conference room, the lights may need to be adjusted to a brighter level to ensure that every participant can read the materials clearly, while in an exhibition hall, softer lights may be needed to highlight the details of the exhibits.

[0004] Chinese patent CN107893933B discloses an LED lamp with adjustable illumination range, including a fixing plate, a first substrate, a second substrate, a controller, an adjusting bolt, and a lampshade. The fixing plate is in the shape of an elongated strip, a first elongated substrate is fixed to the bottom of the fixing plate, a plurality of first LED light-emitting bodies are fixed to the bottom of the first substrate, two U-shaped brackets are fixed to the bottom of the fixing plate, the U-shaped brackets are respectively located on both sides of the first substrate, each long side of the first substrate corresponds to a U-shaped bracket, a second substrate is installed on each U-shaped bracket, one end of the second substrate is fixed to the U-shaped bracket through a rotating shaft, and a plurality of second LED light-emitting bodies are fixed to the bottom of the second substrate.

[0005] The LED lamp fixes one end of the second substrate to the U-shaped bracket through a rotating shaft, and the two ends of the adjustment line are respectively fixed to the adjustment bolt and the second substrate, so that the angle between the second substrate and the first substrate is adjustable, and finally the illumination range is adjusted. However, the LED lamp is fixed to the ceiling, which limits its flexibility and convenience to a certain extent. When the illumination range needs to be adjusted, the operator must achieve this purpose by rotating the adjustment bolt. This process not only requires the operator to have certain skills and experience, but also because it needs to be operated at a height, safety hazards follow.

[0006] In actual applications, especially for LED lamps installed at high altitudes, operators often need to use ladders or scaffolding during the adjustment process, which not only increases the potential risk of falling, but may also cause damage to the lamp or the surrounding environment. This operation method is not only unsafe, but also cumbersome, especially in situations where the lighting range needs to be adjusted frequently, which obviously cannot meet the requirements of efficient and safe work.

[0007] In addition, the complexity of the adjustment process may also lead to reduced work efficiency. In order to ensure the accurate rotation of the adjustment bolt, the operator may need to spend a lot of time to make adjustments, which not only affects the work progress, but also may lead to insufficient lighting effects, thus failing to meet the lighting needs in different scenarios. Summary of the invention

[0008] In view of the problems of the prior art, an LED lighting fixture with an adjustable light-emitting range is provided. By installing a light-emitting angle adjuster in the fixture, a user can adjust the light range of the LED according to needs, thus solving the problem of cumbersome operation of existing LED lamps with adjustable light range.

[0009] In order to solve the problems of the prior art, the present invention provides an LED lighting fixture with an adjustable light-emitting range, comprising a mounting base arranged on a ceiling, a lampshade detachably connected to the mounting base, a light-emitting lamp board arranged at the bottom of the mounting base, and a controller electrically connecting the light-emitting lamp board and a power supply, the lighting fixture also includes a light-emitting angle adjuster arranged at the bottom end of the mounting base, the light-emitting angle adjuster has fixed substrates distributed circumferentially along the central vertical line of the mounting base, and a synchronous deflection drive mechanism for synchronously driving all fixed substrates to deflect from a side away from the central vertical line of the mounting base to an opposite side thereof, a side of the fixed substrate close to the mounting base is rotatably connected to the mounting base, the light-emitting lamp board is arranged at the bottom end of the fixed substrate, a light-emitting surface of the light-emitting lamp board faces the lampshade, the synchronous deflection drive mechanism is electrically connected to the controller, and when the fixed substrate deflects from a side away from the central vertical line of the mounting base to an opposite side thereof, the light-emitting range of the lighting fixture gradually decreases.

[0010] Preferably, connecting ears extending longitudinally are provided on both sides of the fixed substrate along the length direction, and a driving ear is provided on one side of the fixed substrate close to the central vertical line of the mounting seat. The light-emitting angle adjuster also includes a connecting member distributed circumferentially along the central vertical line of the mounting seat, the top of the connecting member is fixedly connected to the bottom end of the mounting seat, and a pivot is provided at the bottom end of the connecting member, the pivot is rotatably connected to the connecting ear, and the driving ear is rotatably connected to the driving part of the synchronous deflection driving mechanism.

[0011] Preferably, the synchronous deflection drive mechanism also includes a driving column, a driving connecting rod and a synchronous radial displacement assembly. The driving column is distributed at the bottom of the mounting seat along the circumferential direction of the central vertical line of the mounting seat. The top of the driving column is slidingly connected to the bottom end of the mounting seat along the radial direction of the center line of the mounting seat. The two ends of the driving connecting rod are respectively rotatably connected to the bottom end of the driving column and the driving ear. The synchronous radial displacement assembly is arranged at the bottom end of the mounting seat. The synchronous radial displacement assembly has a pushing portion that pushes the driving column to move in a direction deviating from the central vertical line of the mounting seat.

[0012] Preferably, the synchronous radial displacement assembly includes a rotating ring and a torque output member. The rotating ring is rotatably arranged at the bottom of the mounting seat coaxially with the vertical line of the center of the mounting seat. The controller is located inside the rotating ring. A toggle plate distributed along its circumference is arranged on the outer circumferential surface of the rotating ring. The toggle plate is provided with a guide groove deviating from the radial direction of the rotating ring. The driving column passes through the guide groove and slides with it. The torque output member is arranged at the bottom end of the mounting seat. The output part of the torque output member is transmission-connected with the rotating ring. When the torque output member drives the rotating ring to rotate, the driving column moves along the radial direction of the rotating ring.

[0013] Preferably, the torque output member includes an arc-shaped rack, a worm and a servo motor. The arc-shaped rack is coaxially arranged at the bottom end of the rotating ring, the worm is rotatably arranged at the bottom of the mounting seat, the worm extends along the tangential direction of the arc-shaped rack, the worm is meshed with the arc-shaped rack, the servo motor is arranged at the bottom of the mounting seat, the output shaft of the servo motor is coaxially fixedly connected with the worm, when the servo motor is started, the worm wheel rotates and drives the arc-shaped rack to rotate along the circumference of the rotating ring, and the servo motor is electrically connected to the controller.

[0014] Preferably, the synchronous radial displacement assembly also includes a connecting ring and a bearing. The connecting ring is coaxially and fixedly arranged at the bottom end of the mounting seat. The inner circumferential surface of the connecting ring extends downward to form an outer connecting cylinder. The inner circumferential surface of the rotating ring extends and moves upward to form an inner connecting cylinder. The bearing is coaxially arranged between the inner circumferential surface of the outer connecting cylinder and the outer circumferential surface of the inner connecting cylinder. The bearings are interference fit with the outer connecting cylinder and the inner connecting cylinder.

[0015] Preferably, a slider extending radially along the central vertical line of the mounting seat is provided at the top end of the driving column, and a guide rail distributed along the central vertical line of the mounting seat is also provided at the bottom end of the mounting seat. The guide rail extends radially along the central vertical line of the mounting seat, and the slider is slidably connected to the guide rail.

[0016] Preferably, a positioning block extending downward is provided at one end of the guide rail deviating from the central vertical line of the mounting seat, and an elastic element is provided between the positioning block and the slider. When the fixed substrate deflects, the positioning block needs to overcome the elastic force of the elastic element.

[0017] Preferably, the fixing base plate is provided with threaded holes arranged along its length direction, the light emitting lamp plate is provided with through holes corresponding to the threaded holes, and the lighting fixture further comprises bolts passing through the through holes and being threadedly connected to the threaded holes.

[0018] Preferably, a top end of the fixed base plate is provided with reinforcing ribs, and the reinforcing ribs extend from both sides of the rotating side of the fixed base plate in the length direction.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The lighting fixture in the present application is designed with a light angle adjuster, so that users can flexibly adjust the lighting angle of the light according to actual needs to meet the lighting needs of different scenes. This flexibility makes the lighting effect more personalized and adaptable to various activities and environments. Secondly, the setting of the light-emitting light panel and the optimized light-emitting surface facing the lampshade can effectively improve the utilization efficiency of the light source, ensure the uniform distribution of light within the lighting range, avoid light spots and dark areas, and improve the lighting effect. At the same time, the detachable connection design between the lampshade and the mounting seat makes the maintenance and replacement of the lamp more convenient, and the user can complete the operation without professional tools, saving time and cost. In addition, the electrical connection with the controller enables the lamp to be managed intelligently. The user can easily turn on or off the lamp through the light start switch, and adjust the light range through the knob-type light range switch, which improves the convenience of use. The lighting fixture is designed to adjust the light range according to actual needs, avoid unnecessary light waste, reduce energy consumption, and thus have a good environmental protection effect. The adjustable light range enables the lamp to be suitable for spaces of different sizes and layouts, whether it is a home, office or commercial place, it can provide a suitable lighting solution. By adjusting the lighting angle and intensity, users can effectively avoid glare, improve visual comfort, reduce eye fatigue, and create a more comfortable environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The cross-sectional view is of an LED lighting fixture with adjustable light emission range.

[0022] Figure 2 yes Figure 1 A partial enlarged view of point A.

[0023] Figure 3 It is a three-dimensional exploded diagram of an LED lighting fixture with adjustable light emission range.

[0024] Figure 4 yes Figure 3 A partial enlarged view of point B.

[0025] Figure 5 It is a three-dimensional diagram of a light panel in an LED lighting fixture with an adjustable light emission range.

[0026] Figure 6 The present invention is a stereoscopic diagram of a light-emitting angle adjuster in an LED lighting fixture with an adjustable light-emitting range.

[0027] Figure 7 The present invention is a partial three-dimensional exploded view of a light-emitting angle adjuster in an LED lighting fixture with adjustable light-emitting range.

[0028] Figure 8 The present invention is a stereoscopic diagram of a torque output device in an LED lighting fixture with an adjustable light emission range.

[0029] Fig. 9 It is a three-dimensional exploded diagram of a synchronous deflection drive mechanism in an LED lighting fixture with an adjustable light-emitting range.

[0030] Fig.10 The present invention is a top view of a rotating ring in an LED lighting fixture with an adjustable light emission range.

[0031] The numbers in the figure are: 1, mounting seat; 11, guide rail; 2, lampshade; 3, light-emitting lamp board; 31, through hole; 4, main controller; 51, fixed base plate; 511, connecting ear; 512, driving ear; 513, threaded hole; 514, reinforcing rib; 52, synchronous deflection drive mechanism; 521, driving column; 5211, slider; 522, driving connecting rod; 523, rotating ring; 5231, toggle plate; 5232, guide groove; 5233, inner connecting tube; 5241, arc rack; 5242, worm; 5243, servo motor; 525, connecting ring; 526, outer connecting tube; 527, bearing; 53, connecting piece; 54, positioning block; 55, elastic element; 6, bolt. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] like Figure 1 and Figure 3 As shown, this application provides:

[0034] An LED lighting fixture with adjustable luminous range includes a mounting base 1 arranged on a ceiling, a lampshade 2 detachably connected to the mounting base 1, a light-emitting lamp board 3 arranged at the bottom of the mounting base 1, and a controller electrically connecting the light-emitting lamp board 3 and a power supply. The lighting fixture also includes a luminous angle adjuster arranged at the bottom end of the mounting base 1, the luminous angle adjuster has fixed substrates 51 distributed circumferentially along the central vertical line of the mounting base 1, and a synchronous deflection drive mechanism 52 for synchronously driving all the fixed substrates 51 to deflect from the side away from the central vertical line of the mounting base 1 to the opposite side thereof, the fixed substrates 51 are rotatably connected to the mounting base 1 on one side close to the mounting base 1, the light-emitting lamp board 3 is arranged at the bottom end of the fixed substrate 51, the light-emitting surface of the light-emitting lamp board 3 faces the lampshade 2, the synchronous deflection drive mechanism 52 is electrically connected to the controller, and when the fixed substrates 51 deflect from the side away from the central vertical line of the mounting base 1 to the opposite side thereof, the luminous range of the lighting fixture gradually decreases.

[0035] The light emitting lamp board 3 is an LED lamp board.

[0036] The lighting fixture is composed of a mounting base 1 arranged on the ceiling, which not only provides basic support for the lighting fixture, but also forms a detachable connection with the lampshade 2, which is convenient for maintenance and replacement of the lampshade 2. The bottom of the mounting base 1 is equipped with a light-emitting lamp panel 3, which is responsible for generating light sources to ensure sufficient and uniform lighting effects.

[0037] In order to realize intelligent control of light, the lighting fixture also includes a controller electrically connecting the light panel 3 and the power supply, and the controller is responsible for managing the switch and light intensity of the lighting fixture. In addition, a light angle adjuster located at the bottom of the mounting base 1 is also incorporated into the design of the lighting fixture. The adjuster has a plurality of fixed substrates 51 distributed circumferentially along the central vertical line of the mounting base 1. These fixed substrates 51 are connected by a synchronous deflection drive mechanism 52, and all the fixed substrates 51 can be synchronously driven at the same time to deflect from the side away from the central vertical line of the mounting base 1 to the opposite side. Such a design not only improves the flexibility of the lamp, but also can accurately adjust the irradiation angle of the light source.

[0038] The side of the fixed substrate 51 close to the mounting base 1 is rotatably connected to the mounting base 1, and the light-emitting lamp board 3 is installed at the bottom of the fixed substrate 51, and its light-emitting surface faces the lampshade 2. The synchronous deflection drive mechanism 52 is electrically connected to the controller, and when the deflection of the fixed substrate 51 occurs, the light-emitting range of the lighting fixture will gradually decrease, which can meet the lighting requirements of different scenes.

[0039] In addition, the lighting fixture is also equipped with a lighting start switch and a lighting range switch electrically connected to the controller. The lighting range switch is a knob-type design, and the user can adjust the angle of the fixed substrate 51 by rotating the switch, thereby achieving flexible control of the lighting range of the lighting fixture. When the angle between the light-emitting lamp board 3 and the central vertical line of the mounting base 1 gradually decreases, the lighting range of the lighting fixture will be reduced accordingly, so that the lamp can effectively adjust the lighting effect in different use environments, and achieve a more intelligent and user-friendly use experience. Overall, this design not only improves the functionality and adaptability of the lighting fixture, but also provides users with greater convenience and comfort.

[0040] like Figure 4 , Figure 5 and Figure 6 As shown, connecting ears 511 extending longitudinally are provided on both sides of the fixed base plate 51 along the length direction, and a driving ear 512 is provided on one side of the fixed base plate 51 close to the central vertical line of the mounting seat 1. The light-emitting angle adjuster also includes a connecting member 53 distributed circumferentially along the central vertical line of the mounting seat 1, and the top of the connecting member 53 is fixedly connected to the bottom end of the mounting seat 1, and a pivot is provided at the bottom end of the connecting member 53, which is rotatably connected to the connecting ear 511, and the driving ear 512 is rotatably connected to the driving part of the synchronous deflection driving mechanism 52.

[0041] The fixed base plate 51 is provided with connecting ears 511 extending in the longitudinal direction on both sides along the length direction. These connecting ears 511 not only enhance the structural stability of the fixed base plate 51, but also provide effective connection with other components to ensure the safety and durability of the lamp during use. The fixed base plate 51 is provided with a driving ear 512 on one side close to the central vertical line of the mounting seat 1. The driving ear 512 is rotatably connected with the driving part of the synchronous deflection driving mechanism 52 to form an efficient power transmission system, so that the light-emitting angle adjuster can accurately and quickly adjust the angle of the light-emitting lamp panel 3 to meet different lighting needs.

[0042] The light angle adjuster also includes connecting members 53 distributed circumferentially along the central vertical line of the mounting base 1, and the top ends of these connecting members 53 are fixedly connected to the bottom end of the mounting base 1 to ensure the stability and safety of the entire lamp during operation. A pivot is provided at the bottom end of the connecting member 53, and the pivot is rotatably connected to the connecting ear 511, allowing the fixed base plate 51 to rotate freely within a smooth and flexible range of motion, thereby achieving a wider range of lighting angle adjustment.

[0043] This design allows the lighting fixture to easily adjust the direction of the light source without adding extra burden, meeting the needs of various scenarios, whether it is a work environment that requires concentrated lighting or a leisure space that requires soft diffused light, it can be achieved through simple operations. At the same time, the design of the integrated connecting ear 511 and the driving ear 512 not only simplifies the structure of the lamp, but also improves its overall aesthetics, avoids redundant exposed components, and allows the lamp to achieve the best balance in function and appearance. Overall, this innovative design makes the use experience of the lighting fixture smoother, while providing users with great convenience and flexibility.

[0044] like Figure 2 , Figure 8 and Fig. 9 As shown, the synchronous deflection drive mechanism 52 also includes a driving column 521, a driving connecting rod 522 and a synchronous radial displacement assembly. The driving column 521 is distributed at the bottom of the mounting seat 1 along the circumferential direction of the central vertical line of the mounting seat 1. The top of the driving column 521 is slidingly connected to the bottom end of the mounting seat 1 along the radial direction of the central line of the mounting seat 1. The two ends of the driving connecting rod 522 are rotationally connected to the bottom end of the driving column 521 and the driving ear 512 respectively. The synchronous radial displacement assembly is arranged at the bottom end of the mounting seat 1, and the synchronous radial displacement assembly has a pushing portion that pushes the driving column 521 to move in a direction deviating from the central vertical line of the mounting seat 1.

[0045] The synchronous deflection drive mechanism 52 also includes a drive column 521, a drive connecting rod 522 and a synchronous radial displacement assembly. The drive column 521 is distributed at the bottom of the mounting seat 1 along the circumference of the central vertical line of the mounting seat 1. This design not only enhances the stability of the drive column 521, but also effectively disperses the load to ensure balance during the lamp adjustment process. The top of the drive column 521 is slidably connected to the bottom of the mounting seat 1 along the radial direction of the center line of the mounting seat 1. This sliding connection allows the drive column 521 to move smoothly during use, thereby improving the flexibility and accuracy of lamp adjustment.

[0046] The two ends of the driving link 522 are rotatably connected to the bottom end of the driving column 521 and the driving ear 512, respectively, to form an efficient power transmission chain. Through this connection, the driving link 522 can effectively transmit the movement from the driving column 521 to the driving ear 512, thereby achieving precise adjustment of the lighting angle. This design allows users to obtain the desired lighting direction and intensity by applying minimal force when adjusting the lighting angle, thereby improving the overall user experience.

[0047] The synchronous radial displacement component is arranged at the bottom end of the mounting base 1, and has a driving part that drives the driving column 521 to move in a direction deviating from the vertical line of the center of the mounting base 1. This driving part can produce a radial displacement, so that the movement of the driving column 521 in the vertical direction is more flexible and accurate. By coordinating the movement of the driving column 521 and the driving ear 512, the user can adjust the lighting direction of the lamp with higher efficiency to meet the needs of different scenes.

[0048] like Figure 7 and Fig.10 As shown, the synchronous radial displacement assembly includes a rotating ring 523 and a torque output member. The rotating ring 523 is rotatably arranged at the bottom of the mounting seat 1 coaxially with the central vertical line of the mounting seat 1. The controller is located in the rotating ring 523. The outer circumferential surface of the rotating ring 523 is provided with a toggle plate 5231 distributed along its circumference. The toggle plate 5231 is provided with a guide groove 5232 deviating from the radial direction of the rotating ring 523. The driving column 521 passes through the guide groove 5232 and slides with it. The torque output member is arranged at the bottom end of the mounting seat 1. The output part of the torque output member is transmission-connected with the rotating ring 523. When the torque output member drives the rotating ring 523 to rotate, the driving column 521 moves along the radial direction of the rotating ring 523.

[0049] The synchronous radial displacement assembly is mainly composed of two parts: a rotating ring 523 and a torque output member. The rotating ring 523 is arranged at the bottom of the mounting seat 1 and rotates coaxially with the vertical line at the center of the mounting seat 1. This design not only ensures the balance of the assembly, but also provides a stable operating platform for it. The controller is placed inside the rotating ring 523, so that the movement state of the rotating ring 523 can be directly monitored and adjusted, which improves the intelligence and automation level of the overall operation.

[0050] The outer circumferential surface of the rotating ring 523 is designed with a plurality of toggle plates 5231 evenly distributed along the circumference thereof, and each toggle plate 5231 has a guide groove 5232 deviating from the radial direction of the rotating ring 523. The structure of the guide groove 5232 allows the driving column 521 to pass smoothly and slide with it. This design concept enables the overall system to maintain a high degree of coordination and accuracy during operation, ensuring effective radial displacement control.

[0051] The torque output member is located at the bottom end of the mounting seat 1, and its output member can input torque to the rotating ring 523. When the torque output member is actuated, the rotational force generated by it can directly drive the rotating ring 523 to rotate. When the rotating ring 523 starts to rotate, the toggle plate 5231 will also rotate along the circumference of the rotating ring 523, thereby driving the guide groove 5232 to rotate. This sequence of actions guides the driving column 521 to move along the radial direction of the rotating ring 523, thereby achieving precise adjustment of the angle of the fixed base plate 51.

[0052] like Figure 7 and Figure 8 As shown, the torque output member includes an arc-shaped rack 5241, a worm 5242 and a servo motor 5243. The arc-shaped rack 5241 is coaxially arranged at the bottom end of the rotating ring 523, and the worm 5242 is rotatably arranged at the bottom of the mounting base 1. The worm 5242 extends along the tangential direction of the arc-shaped rack 5241, and the worm 5242 is meshed with the arc-shaped rack 5241. The servo motor 5243 is arranged at the bottom of the mounting base 1, and the output shaft of the servo motor 5243 is coaxially fixedly connected with the worm 5242. When the servo motor 5243 is started, the worm wheel rotates and drives the arc-shaped rack 5241 to rotate circumferentially along the rotating ring 523. The servo motor 5243 is electrically connected to the controller.

[0053] The arc-shaped rack 5241 is coaxially arranged at the bottom end of the rotating ring 523, and its arc-shaped design enables it to better adapt to the motion trajectory of the rotating ring 523. This design not only improves the smoothness of the meshing, but also enhances the overall stability of the system. The worm 5242 is rotatably arranged at the bottom of the mounting seat 1 and extends along the tangent direction of the arc-shaped rack 5241. Combined with it, it can efficiently transmit power during the action process.

[0054] The servo motor 5243 is mounted at the bottom end of the mounting base 1, and its output shaft is coaxially fixedly connected with the worm 5242. When the servo motor 5243 is started, it transmits power to the arc rack 5241 by rotating the worm 5242, driving the arc rack 5241 to rotate along the circumference of the rotating ring 523. In this process, the precise control of the servo motor 5243 can achieve efficient regulation of the movement, thereby making the movement of the rotating ring 523 more flexible and controllable. In addition, the electrical connection between the servo motor 5243 and the controller ensures the coordinated operation of the entire system, and can adjust the movement in real time according to actual needs.

[0055] More importantly, when the worm 5242 stops rotating, the arc-shaped rack 5241 will not continue to drive the rotating ring 523 to rotate, thereby realizing the self-locking function of the rotating ring 523. This self-locking mechanism effectively prevents the fixed base plate 51 from self-deflecting in a non-working state, ensuring the stability and safety of the system in a static state. This design concept is widely used in many mechanical equipment that requires high precision and high stability, ensuring the reliability of operation.

[0056] like Figure 7As shown, the synchronous radial displacement assembly also includes a connecting ring 525 and a bearing 527. The connecting ring 525 is coaxially fixedly arranged at the bottom end of the mounting seat 1. The inner circumferential surface of the connecting ring 525 extends downward to form an outer connecting cylinder 526. The inner circumferential surface of the rotating ring 523 extends and moves upward to form an inner connecting cylinder 5233. The bearing 527 is coaxially arranged between the inner circumferential surface of the outer connecting cylinder 526 and the outer circumferential surface of the inner connecting cylinder 5233. The bearings 527 are interference fit with the outer connecting cylinder 526 and the inner connecting cylinder 5233.

[0057] The design of the synchronous radial displacement assembly also includes a connecting ring 525 and a bearing 527, which play an important supporting and connecting role in the entire system. The connecting ring 525 is coaxially fixedly arranged at the bottom end of the mounting seat 1, and its inner circumference extends downward to form an outer connecting cylinder 526. The design of this outer connecting cylinder 526 not only enhances the stability of the structure, but also provides a reliable connection platform for other components.

[0058] The inner circumference of the rotating ring 523 extends upward to form an inner connecting tube 5233. The structural design of the inner and outer connecting tubes 526 forms a stable space between the rotating ring 523 and the connecting ring 525, which can effectively bear various mechanical loads of the rotating ring 523 during operation. Through this configuration, the overall rigidity and durability of the assembly are significantly improved.

[0059] A bearing 527 is coaxially arranged between the inner circumference of the outer connecting cylinder 526 and the outer circumference of the inner connecting cylinder 5233 to ensure that the rotating ring 523 can rotate smoothly. The existence of the bearing 527 not only reduces the friction of the rotating ring 523 during the rotation process, but also improves the stability and response speed of the operation. Through precise design, an interference fit is achieved between the bearing 527 and the outer connecting cylinder 526 and the inner connecting cylinder 5233. This fit effectively prevents any looseness from occurring and ensures the stability of the overall structure.

[0060] like Figure 2 and Fig. 9 As shown, the top of the driving column 521 is provided with a slider 5211 extending in the radial direction of the central vertical line of the mounting seat 1, and the bottom end of the mounting seat 1 is also provided with a guide rail 11 distributed along its central vertical line. The guide rail 11 extends in the radial direction of the central vertical line of the mounting seat 1, and the slider 5211 is slidably connected to the guide rail 11.

[0061] A slider 5211 is designed at the top of the driving column 521. The slider 5211 extends radially along the central vertical line of the mounting seat 1. This design enables the slider 5211 to maintain good movement flexibility in both the longitudinal and lateral directions. The slider 5211 ensures low friction and high wear resistance during movement, which can significantly improve the service life and performance of the overall mechanical components.

[0062] At the bottom end of the mounting base 1, a guide rail 11 is provided along the central vertical line thereof. The design of the guide rail 11 complements the slider 5211, and the guide rail 11 also extends in the radial direction along the central vertical line of the mounting base 1. This configuration ensures that the slider 5211 can slide smoothly on the guide rail 11, and the guide rail 11 provides a stable support surface, making the movement of the slider 5211 more stable and reducing the vibration and noise caused by the movement.

[0063] When the slider 5211 slides on the guide rail 11, it can accurately respond to the movement of the driving column 521, making the angle adjustment of the fixed base plate 51 more flexible and meeting various operation requirements. This form of sliding connection not only improves the accuracy of movement, but also provides great convenience for subsequent adjustment and positioning.

[0064] like Figure 2 As shown, a positioning block 54 extending downward is provided at one end of the guide rail 11 deviating from the central vertical line of the mounting seat 1, and an elastic element 55 is provided between the positioning block 54 and the slider 5211. When the fixed substrate 51 deflects, the positioning block 54 needs to overcome the elastic force of the elastic element 55.

[0065] A positioning block 54 extending downward is designed at one end of the guide rail 11 that deviates from the vertical line of the center of the mounting seat 1. The positioning block 54 exists to provide additional support and stability to ensure that the slider 5211 does not deviate from the normal motion trajectory during operation. The shape and material of the positioning block 54 are carefully designed to ensure that it can withstand various external forces and effectively guide the movement of the slider 5211.

[0066] An elastic element 55 is provided between the positioning block 54 and the slider 5211. This design not only increases the flexibility of the system, but also plays a role of buffering and protection. The elastic force of the elastic element 55 can provide a certain resistance when the slider 5211 is subjected to external force or impact, preventing the movement of the slider 5211 from being excessively affected. At the same time, this elastic connection also allows the slider 5211 to move freely within a certain range, thereby avoiding mechanical damage caused by misoperation or unexpected factors.

[0067] When the fixed substrate 51 deflects, the positioning block 54 needs to overcome the elastic force of the elastic element 55 to be able to adjust. This process not only tests the strength and stability of the positioning block 54, but also tests the design parameters of the elastic element 55, such as the elastic coefficient and the stroke length. By adjusting the characteristics of the elastic element 55, the response characteristics of the fixed substrate 51 when deflected can be effectively controlled, thereby ensuring the smoothness and accuracy of the movement.

[0068] In addition, the presence of the elastic element 55 also provides a more user-friendly experience for the operator. When the slider 5211 encounters resistance during movement, the elastic element 55 can effectively absorb part of the impact force, thereby reducing the noise and vibration generated during operation. This design concept has been widely used in modern mechanical systems, improving the overall performance and comfort of the equipment.

[0069] like Figure 2 As shown, the fixed base plate 51 is provided with threaded holes 513 arranged along its length direction, the light emitting lamp board 3 is provided with through holes 31 corresponding to the threaded holes 513 , and the lighting fixture also includes bolts 6 that pass through the through holes 31 and are threadedly connected to the threaded holes 513 .

[0070] The fixing base plate 51 is provided with threaded holes 513 evenly arranged along its length, and the threaded holes 513 are designed to provide stable and flexible installation options, so that the lighting device can be adjusted and fixed in different application scenarios. The number and distribution of the threaded holes 513 ensure that the required load can be effectively carried, while facilitating installation and maintenance by the operator.

[0071] Corresponding to the threaded holes 513, the light emitting lamp board 3 is provided with through holes 31. The positions and sizes of the through holes 31 are matched to ensure docking with the threaded holes 513 of the fixed substrate 51 to form a stable connection. Such a design enables the light emitting lamp board 3 to be firmly fixed on the fixed substrate 51, ensuring its stability under various environmental conditions.

[0072] The design of the lighting fixture also includes a bolt 6 that passes through the through hole 31 and is threadedly connected to the threaded hole 513. By screwing the bolt 6 into the threaded hole 513, it is tightly combined with the lamp board and the fixed base plate 51 to form a solid structure, effectively preventing loosening due to vibration or external force.

[0073] like Figure 4 As shown, a reinforcing rib 514 is disposed at the top of the fixed base plate 51 , and the reinforcing rib 514 extends from both sides of the rotating side of the fixed base plate 51 in the length direction.

[0074] By extending to both sides of the fixed substrate 51, the reinforcing ribs 514 not only improve the bending resistance of the fixed substrate 51, but also enhance its torsion resistance. This structure can effectively resist various dynamic loads and impact forces that may be encountered during use, ensuring the reliability of the fixed substrate 51 in various operating environments. For example, in a high temperature or high humidity environment, the design of the reinforcing ribs 514 can prevent the substrate from failing due to material fatigue.

[0075] In addition, the presence of the reinforcing ribs 514 can also improve the seismic resistance of the entire system to a certain extent. For equipment that needs to be used in an environment with frequent vibrations, the rationally arranged reinforcing ribs 514 can significantly improve its overall durability. The reinforcing ribs 514 can provide the necessary rigidity for the fixed base plate 51, so that the equipment can maintain stable operation under the influence of external vibrations, thereby ensuring the safety and functionality of the equipment.

[0076] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An LED lighting fixture with an adjustable light emitting range, comprising a mounting base (1) arranged on a ceiling, a lampshade (2) detachably connected to the mounting base (1), a light emitting lamp panel (3) arranged at the bottom of the mounting base (1), and a controller electrically connecting the light emitting lamp panel (3) and a power source, characterized in that: The lighting fixture further comprises a light-emitting angle adjuster arranged at the bottom end of the mounting seat (1), the light-emitting angle adjuster comprising fixed substrates (51) distributed circumferentially along the central vertical line of the mounting seat (1), and a synchronous deflection drive mechanism (52) for synchronously driving all the fixed substrates (51) to deflect from the side away from the central vertical line of the mounting seat (1) to the opposite side thereof, the side of the fixed substrates (51) close to the mounting seat (1) being rotatably connected to the mounting seat (1), the light-emitting lamp board (3) being arranged at the bottom end of the fixed substrate (51), the light-emitting surface of the light-emitting lamp board (3) facing the lampshade (2), the synchronous deflection drive mechanism (52) being electrically connected to the controller, and when the fixed substrates (51) are deflected from the side away from the central vertical line of the mounting seat (1) to the opposite side thereof, the light-emitting range of the lighting fixture gradually decreases; The fixed base plate (51) is provided with connecting ears (511) extending in the longitudinal direction on both sides along the length direction, and a driving ear (512) is provided on one side of the fixed base plate (51) close to the central vertical line of the mounting seat (1). The light-emitting angle adjuster also includes a connecting member (53) distributed in the circumferential direction along the central vertical line of the mounting seat (1), the top end of the connecting member (53) is fixedly connected to the bottom end of the mounting seat (1), the bottom end of the connecting member (53) is provided with a pivot, the pivot is rotatably connected to the connecting ear (511), and the driving ear (512) is rotatably connected to the driving part of the synchronous deflection driving mechanism (52); The synchronous deflection drive mechanism (52) further comprises a drive column (521), a drive connecting rod (522) and a synchronous radial displacement assembly, wherein the drive column (521) is distributed at the bottom of the mounting seat (1) along the circumferential direction of the central vertical line of the mounting seat (1), the top end of the drive column (521) is slidably connected to the bottom end of the mounting seat (1) along the radial direction of the central line of the mounting seat (1), the two ends of the drive connecting rod (522) are respectively rotatably connected to the bottom end of the drive column (521) and the drive ear (512), and the synchronous radial displacement assembly is arranged at the bottom end of the mounting seat (1), and the synchronous radial displacement assembly has a driving portion that drives the drive column (521) to move in a direction deviating from the central vertical line of the mounting seat (1); The synchronous radial displacement assembly comprises a rotating ring (523) and a torque output member. The rotating ring (523) is rotatably arranged at the bottom of the mounting seat (1) coaxially with the central vertical line of the mounting seat (1). The controller is located inside the rotating ring (523). A toggle plate (5231) distributed along its circumference is arranged on the outer circumferential surface of the rotating ring (523). The toggle plate (5231) is provided with a guide groove (5232) deviating from the radial direction of the rotating ring (523). The driving column (521) passes through the guide groove (5232) and slidably cooperates with the guide groove. The torque output member is arranged at the bottom end of the mounting seat (1). The output portion of the torque output member is transmission-connected to the rotating ring (523). When the torque output member drives the rotating ring (523) to rotate, the driving column (521) moves along the radial direction of the rotating ring (523). The torque output member comprises an arc-shaped rack (5241), a worm (5242) and a servo motor (5243); the arc-shaped rack (5241) is coaxially arranged at the bottom end of the rotating ring (523); the worm (5242) is rotatably arranged at the bottom of the mounting seat (1); the worm (5242) extends along the tangent direction of the arc-shaped rack (5241); the worm (5242) meshes with the arc-shaped rack (5241); the servo motor (5243) is arranged at the bottom of the mounting seat (1); the output shaft of the servo motor (5243) is coaxially fixedly connected to the worm (5242); when the servo motor (5243) is started, the worm wheel rotates and drives the arc-shaped rack (5241) to rotate along the circumferential direction of the rotating ring (523); and the servo motor (5243) is electrically connected to a controller.

2. The LED lighting fixture with adjustable light emission range according to claim 1, characterized in that: The synchronous radial displacement assembly further comprises a connecting ring (525) and a bearing (527); the connecting ring (525) is coaxially fixedly arranged at the bottom end of the mounting seat (1); the inner circumferential surface of the connecting ring (525) extends downward to form an outer connecting cylinder (526); the inner circumferential surface of the rotating ring (523) extends upward to form an inner connecting cylinder (5233); the bearing (527) is coaxially arranged between the inner circumferential surface of the outer connecting cylinder (526) and the outer circumferential surface of the inner connecting cylinder (5233); and the bearing (527) is interference fit with the outer connecting cylinder (526) and the inner connecting cylinder (5233).

3. The LED lighting fixture with adjustable light emission range according to claim 1, characterized in that: The top end of the driving column (521) is provided with a sliding block (5211) extending in a radial direction along a central vertical line of the mounting seat (1), and the bottom end of the mounting seat (1) is further provided with a guide rail (11) distributed along its central vertical line, the guide rail (11) extending in a radial direction along the central vertical line of the mounting seat (1), and the sliding block (5211) is slidably connected to the guide rail (11).

4. The LED lighting fixture with adjustable light emission range according to claim 3, characterized in that: A positioning block (54) extending downward is provided at one end of the guide rail (11) that deviates from the central vertical line of the mounting seat (1), and an elastic element (55) is provided between the positioning block (54) and the slider (5211). When the fixed base plate (51) deflects, the positioning block (54) needs to overcome the elastic force of the elastic element (55).

5. The LED lighting fixture with adjustable light emission range according to claim 1, characterized in that: The fixed base plate (51) is provided with threaded holes (513) arranged along its length direction, the light emitting lamp panel (3) is provided with through holes (31) corresponding to the threaded holes (513), and the lighting fixture further comprises bolts (6) passing through the through holes (31) and being threadably connected to the threaded holes (513).

6. The LED lighting fixture with adjustable light emission range according to claim 1, characterized in that: A reinforcing rib (514) is provided at the top end of the fixed base plate (51), and the reinforcing rib (514) extends from both sides of the rotating side of the fixed base plate (51) in the length direction.

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