A lighting fixture that is easily adjustable

Abstract

The utility model discloses a kind of lighting lamps and lanterns of being convenient for adjusting, including rotatably arranged lamp bead disc and lampshade disc, lampshade disc covers the luminous surface of lamp bead disc, lamp bead disc includes at least one group of annular distribution lamp bead body;At least one diffusing ring is correspondingly provided on lampshade disc, diffusing ring is arranged with multiple shading portion and light outlet portion of alternately setting along its circumferential direction, wherein, the light transmittance of light outlet portion is much greater than the light transmittance of shading portion;Rotating lampshade disc, to change the relative angle of shading portion relative to lamp bead body;By continuous rotation adjustment, reach the desired overall or local brightness distribution and glare control effect;The present lighting lamps and lanterns by making diffusing ring with alternately shading portion and light outlet portion can rotate around concentric lamp bead disc, realized in without changing light source and without complex electronic dimming condition, to luminous flux distribution and viewing direction glare is directly and reversibly adjusted, simple and easy to use.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to an easily adjustable lighting fixture. Background Technology

[0002] With the widespread adoption of solid-state light sources such as LEDs in commercial lighting, residential lighting, and office space display lighting, the requirements for lighting products in terms of "luminous efficacy, visual comfort, and scene adaptability" are becoming increasingly stringent. On the one hand, users expect the same light to be able to quickly switch lighting atmospheres between different usage scenarios such as reading, working, leisure, and watching movies; on the other hand, public and office environments have strict requirements for glare control, illumination uniformity, and flicker-free stability. In addition, energy consumption and ease of maintenance are also important design considerations. Therefore, there is a clear market demand for lighting solutions that can provide adjustable optical distribution while maintaining low cost, ease of installation, and ease of maintenance.

[0003] In existing lighting products, the most common method of brightness adjustment is to achieve overall dimming by changing the electric drive parameters. This method is low-cost, highly compatible, and suitable for most scenarios requiring overall brightness variation; however, it essentially scales the global power / luminous intensity of the entire light source, lacking selective control over different areas of the luminous surface. Therefore, when the light source has a ring-shaped or locally high-brightness distribution (e.g., the inner ring of a multi-ring LED array is significantly brighter than the outer ring), simply reducing the drive power can reduce the overall brightness, but it cannot specifically suppress the uncomfortable glare caused by direct viewing—because the high-brightness area from which the glare originates is not always in the same location as the required illuminance on the working surface.

[0004] Therefore, it is necessary to improve the existing lighting fixtures to solve the technical problem that they cannot effectively suppress local glare when adjusting brightness. Utility Model Content

[0005] The purpose of this invention is to provide an easily adjustable lighting fixture to solve the above-mentioned technical problems.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An easily adjustable lighting fixture includes a rotatable lamp bead disk and a lamp shade disk, the lamp shade disk covering the light-emitting surface of the lamp bead disk, and the lamp bead disk including at least one group of lamp beads arranged in a ring;

[0008] At least one diffuser ring is provided on the lampshade panel, and multiple alternating light-shielding parts and light-emitting parts are arranged along the circumference of the diffuser ring. The light transmittance of the light-emitting parts is much greater than that of the light-shielding parts.

[0009] Rotate the lamp shade to change the relative angle between the light-shielding part and the lamp bead body.

[0010] Optionally, a central hole is provided at the center of the lamp cover plate, and a tightening bolt is provided at the central hole. One end of the tightening bolt passes through the central hole and is threaded to the lamp bead plate.

[0011] Optionally, the lampshade is provided with multiple sets of concentrically arranged diffuser rings, and a gap is formed between any two adjacent diffuser rings;

[0012] The diffuser ring is a protruding ring that extends beyond the lamp cover disk, and a diffusion groove for light diffusion is formed on one end face of the protruding ring facing the lamp bead disk.

[0013] Optionally, a mounting post is provided at a preset position within one of the interval portions. The mounting post is hollowed out, and a first magnetic part is provided inside the mounting post, with one end of the first magnetic part exposed outside the mounting post.

[0014] The lamp bead disk is provided with a second magnetic part at a corresponding position. The second magnetic part is magnetically connected to the first magnetic part so that the lamp cover disk is positioned at a preferred angle.

[0015] Optionally, it also includes a mounting plate, which is fixedly connected to the lamp bead plate by fastening bolts, and a gap space is formed between the mounting plate and the lamp bead plate, at least a portion of the lamp cover plate is housed in the gap space to provide rotation space for the lamp cover plate.

[0016] Optionally, the inner sidewall of the mounting plate is provided with a plurality of arc-shaped protrusions at intervals, and a limiting groove is formed between two adjacent arc-shaped protrusions;

[0017] The arc-shaped protrusion abuts against the outermost diffuser ring, and a limiting protrusion is provided on the outer side of the lampshade disk. The limiting protrusion is housed in the limiting groove. When the limiting protrusion abuts against the side wall of the limiting groove, the lampshade disk is restricted from rotating.

[0018] Optionally, the lighting fixture further includes a housing assembly, on which the lamp bead disk is mounted, and a heat dissipation ring is provided on the outer edge of the housing assembly;

[0019] The heat dissipation ring has multiple air vents along its circumference, and the back of the housing assembly has multiple air ducts, with an air vent at each end of the air duct to form an airflow channel flowing through the back of the LED chip.

[0020] Optionally, the LED chip disk includes a PCB board and a plurality of LED chip rings disposed on the PCB board along the same center, wherein the LED chip rings include a plurality of LED chip bodies disposed along the same circumference.

[0021] Optionally, the light-shielding portion is provided with a gradient optical coating so that the light transmittance of the light-shielding portion gradually increases from its two sides to the middle.

[0022] Compared with the prior art, this utility model has the following beneficial effects: During operation, the lamp cover plate rotates angularly relative to the fixed lamp bead plate; as the lamp cover plate rotates, the light-shielding part and the light-emitting part in the diffuser ring on the lamp cover plate change relative to the annular lamp bead body on the lamp bead plate in the circumferential direction; when the light-shielding part covers or approaches the corresponding lamp bead body, the light transmittance at that position decreases, thereby reducing the direct luminous intensity of that section; conversely, when the light-emitting part is aligned with the corresponding lamp bead body, the light transmittance of that section increases and the light emission is enhanced; through continuous rotation adjustment, the desired overall or local brightness distribution and glare control effect can be achieved; this lighting fixture, by allowing the diffuser ring with alternating light-shielding and light-emitting parts to rotate around the concentric lamp bead plate, realizes intuitive and reversible adjustment of luminous flux distribution and viewing glare without changing the light source or complex electronic dimming, which is simple and easy to use. Attached Figure Description

[0023] 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, other drawings can be obtained based on these drawings without creative effort.

[0024] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0025] Figure 1 This is a schematic diagram of the overall structure of the easily adjustable lighting fixture in this embodiment.

[0026] Figure 2 This is a schematic diagram of the back of the easily adjustable lighting fixture in this embodiment;

[0027] Figure 3This is a schematic diagram of the back of the lampshade panel of the easily adjustable lighting fixture in this embodiment;

[0028] Figure 4 This is a front view of the lampshade panel of the easily adjustable lighting fixture in this embodiment 1.

[0029] Figure 5 This is a schematic diagram of the distribution structure of the diffuser ring of the easily adjustable lighting fixture in this embodiment 1;

[0030] Figure 6 This is a front view schematic diagram of the lamp bead disk of the easily adjustable lighting fixture in this embodiment.

[0031] Illustration: Lamp bead plate 10, lamp cover plate 20, lamp bead body 101, diffuser ring 21, light shield 211, light emitting part 212, tightening bolt 22, spacer 23, diffuser groove 24, mounting post 25, second magnetic suction part 12, mounting plate 30, fastening bolt 31, arc-shaped protrusion 32, limiting groove 33, limiting protrusion 26, housing assembly 40, heat dissipation ring 41, air vent 42, air vent groove 43, PCB board 13, lamp bead ring 11. Detailed Implementation

[0032] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0033] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are 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. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0034] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] Combination Figures 1 to 6As shown, this embodiment of the present invention provides an easily adjustable lighting fixture, including a rotatable lamp bead disk 10 and a lampshade disk 20. The lampshade disk 20 covers the light-emitting surface of the lamp bead disk 10, and the lamp bead disk 10 includes at least one group of lamp beads 101 arranged in a ring. At least one diffuser ring 21 is correspondingly provided on the lampshade disk 20. The diffuser ring 21 has a plurality of alternately arranged light-shielding parts 211 and light-emitting parts 212 along its circumference, wherein the light-emitting part 212 has a much higher light transmittance than the light-shielding part 211. Rotating the lampshade disk 20 changes the relative angle between the light-shielding part 211 and the lamp bead 101.

[0036] It should be noted that the lamp cover disk 20 has at least one concentric diffuser ring 21 at a radial position corresponding to each lamp bead ring 11. The diffuser ring 21 is composed of alternating light-shielding parts 211 and light-emitting parts 212 in the circumferential direction. The light-emitting parts 212 are highly transparent or diffuse scattering regions with microstructures, and the light-shielding parts 211 are light-blocking regions with low light transmittance or no light transmittance (which may be a thickened rib structure, a light-shielding coating, or an inlaid opaque material). By rotating the lamp cover disk 20 around the central axis, the relative angle between the light-shielding parts 211 and each lamp bead 101 in the circumferential direction can be changed. This weakens the direct light transmitted by some lamp beads that are partially or completely blocked by the light-shielding parts 211, while enhancing the diffuse light emission in that direction when the light-emitting parts 212 are aligned with the lamp bead 101.

[0037] This working principle allows for selective alteration of the local perceptual brightness and glare distribution of a ring-shaped light source through mechanical angular adjustment without changing the LED drive current, requiring complex electronic zoning control, or adding multiple layers of optical components. Users can achieve stepless or stepped brightness and glare control through manual continuous adjustment or fixed / electric control. At the same time, the overall lighting uniformity and visual comfort can be adjusted through the width of the light-emitting part 212 / light-shielding part 211, the light transmittance ratio, and the design of the diffused light microstructure.

[0038] The working principle of this invention is as follows: During operation, the lamp cover disk 20 is driven to rotate angularly relative to the fixed lamp bead disk 10. As the lamp cover disk 20 rotates, the light-shielding part 211 and the light-emitting part 212 in the diffuser ring 21 on the lamp cover disk 20 undergo relative angular changes in the circumferential direction relative to the annular lamp bead body 101 on the lamp bead disk 10. When the light-shielding part 211 covers or approaches the corresponding lamp bead body 101, the light transmittance at that position decreases, thereby reducing the direct luminous intensity of that section; conversely... When the light-emitting part 212 is aligned with the corresponding lamp bead body 101, the light transmittance of that section increases and the light emission is enhanced. By continuously rotating and adjusting, the desired overall or local brightness distribution and glare control effect can be achieved. This lighting fixture allows the diffuser ring 21 with alternating light-shielding parts 211 and light-emitting parts 212 to rotate around the concentric lamp bead disk 10, enabling intuitive and reversible adjustment of luminous flux distribution and visual glare without changing the light source or requiring complex electronic dimming. It is simple and easy to use.

[0039] In this embodiment, it should be noted that a central hole is provided at the center of the lamp shade plate 20, and a tightening bolt 22 is provided at the central hole. One end of the tightening bolt 22 passes through the central hole and is threaded to the lamp bead plate 10.

[0040] It should be noted that the tightening bolt 22 serves as both a fastener for the lamp cover plate 20 and the lamp bead plate 10, used to achieve mechanical positioning by tightening after the angular adjustment is completed, preventing the cover from slipping relative to each other due to vibration or external force during use; and a quick-release component, allowing the lamp cover to be quickly disassembled and reset by loosening or tightening, facilitating on-site adjustment, maintenance or replacement of the lamp cover.

[0041] When adjusting manually, the user first loosens the tightening bolt 22, rotates the lampshade plate 20 to the ideal angle position, and then tightens the bolt 22 to complete the positioning. To improve the operating experience, a wrench groove, handle, or anti-loosening washer can be provided on the bolt head or outer edge, and a self-locking structure or elastic washer can be designed at the threaded joint to prevent accidental loosening. The materials and surface treatment can be selected according to the requirements of corrosion resistance, wear resistance, and damping.

[0042] In this embodiment, the lamp cover disk 20 is provided with multiple sets of concentrically arranged diffuser rings 21, and a gap 23 is formed between any two adjacent diffuser rings 21; wherein, the diffuser ring 21 is a convex ring that protrudes from the lamp cover disk 20, and a diffusion groove 24 for light diffusion is formed on the end face of the convex ring facing the lamp bead disk 10.

[0043] It should be noted that the lamp cover plate 20 is provided with multiple sets of concentrically arranged protruding diffuser rings 21, with a gap 23 between any two adjacent diffuser rings 21. Each diffuser ring 21 is an annular protrusion protruding from the lamp cover plate 20, and its end face facing the lamp bead plate 10 has a diffusion groove 24 or a multi-level microstructure surface for light diffusion. The protruding volume and internal cavity space of the diffuser ring 21 provide multiple reflection and diffuse scattering paths for the incident light. The diffusion groove 24 changes the direction of the incident light and increases in-plane scattering, so that the point light source or small-angle beam light from each ring lamp bead 101 is more evenly distributed on the emission surface, reducing bright spots and patterns, and improving the smooth transition of far-field and near-field illuminance.

[0044] In this embodiment, it is further explained that a mounting post 25 is provided at a preset position within one of the interval portions 23. The mounting post 25 is hollowed out, and a first magnetic part is provided inside the mounting post 25. One end of the first magnetic part is exposed outside the mounting post 25. A second magnetic part 12 is provided at a corresponding position on the lamp bead disk 10. The second magnetic part 12 is magnetically connected to the first magnetic part so that the lamp cover disk 20 is positioned at a preferred angle.

[0045] The lamp bead disk 10 is provided with a second magnetic attraction part 12 at the corresponding position. When the lamp cover disk 20 is rotated to a certain preferred angle position (for example, the position where the light-emitting part 212 is aligned with a certain lamp bead ring 11 to achieve the best brightness or the minimum glare), the first magnetic attraction part and the second magnetic attraction part 12 are magnetically attracted to each other, generating obvious tactile or auditory feedback to prompt the user that the preferred angle position has been reached, which facilitates quick positioning and prevents mistakes.

[0046] This magnetic positioning employs a non-contact, weak locking method: the magnetic force is sufficient to provide damping and a sense of positioning during manual adjustment, but not enough to completely prevent the user from continuing to rotate, thus maintaining the continuity and reversibility of adjustment; for stronger fixation, the bolt 22 can be tightened to achieve final locking. The magnetic force, polarity arrangement, and relative position of the magnetic attraction part can be adjusted by selecting appropriate magnetic materials, magnet sizes, or using a combination of magnetic steel sheets and iron cores to balance positioning sensitivity and durability, while avoiding adverse effects on the lighting circuitry or surrounding electronic equipment (e.g., through shielding or isolation design).

[0047] In this embodiment, the lighting fixture also includes a mounting plate 30, which is fixedly connected to the lamp bead plate 10 by fastening bolts 31, and a gap space is formed between the mounting plate 30 and the lamp bead plate 10. At least a portion of the lamp cover plate 20 is housed in the gap space to provide rotation space for the lamp cover plate 20.

[0048] Specifically, the mounting plate 30, on the one hand, provides a limiting and supporting function for the lamp cover plate 20 through its tight fit with the lamp bead plate 10, preventing the lamp cover plate 20 from falling off in the axial direction; on the other hand, the gap size is designed to be slightly larger than the thickness of the lamp cover plate 20, thereby ensuring that the lamp cover plate 20 has sufficient rotational freedom in the space, while limiting its excessive wobbling in the radial and planar directions, and maintaining the concentricity and stability of the light-emitting surface.

[0049] In this embodiment, it is further explained that the inner sidewall of the mounting plate 30 is provided with a plurality of arc-shaped protrusions 32 at intervals, and a limiting groove 33 is formed between two adjacent arc-shaped protrusions 32; wherein, the arc-shaped protrusions 32 abut against the outermost diffuser ring 21, and the outer side of the lampshade plate 20 is provided with a limiting protrusion 26, which is housed in the limiting groove 33. When the limiting protrusion 26 abuts against the sidewall of the limiting groove 33, the lampshade plate 20 is restricted from rotating.

[0050] The aforementioned structure supports the lampshade disc 20 radially and axially via the arc-shaped protrusion 32, preventing the lampshade disc 20 from dislodging or tilting during use or transportation. The contact between the limiting protrusion 26 and the sidewall of the limiting groove 33 limits the maximum rotation range of the lampshade disc 20, preventing excessive rotation from causing interference between the diffuser ring 21 and the lamp bead disc 10 structure or exceeding the designed light emission range. To improve the feel and extend the lifespan, the limiting part can be set as a composite structure of metal and plastic, or an elastic anti-scratch pad can be added to the limiting contact surface, making the limiting contact both rigid and reliable, and also providing a cushioning effect.

[0051] In this embodiment, the lighting fixture also includes a housing assembly 40, on which the lamp bead disk 10 is mounted. A heat dissipation ring 41 is provided on the outer edge of the housing assembly 40. The heat dissipation ring 41 is provided with a plurality of air vents 42 along its circumferential direction. A plurality of air ducts 43 are provided on the back of the housing assembly 40. Each end of the air duct 43 corresponds to an air vent 42, so as to form an airflow channel flowing through the back of the lamp bead disk 10.

[0052] This airflow channel can utilize natural convection or forced ventilation (e.g., a small fan) to form a stable airflow from the outer edge air guide 42 through the air guide groove 43 to the other end air guide 42. The airflow carries away heat along the back of the LED chip disk 10, increasing the heat dissipation efficiency of the heat sink ring 41, reducing the LED junction temperature and power supply / driver temperature rise, thereby extending the life of the light source and ensuring long-term luminous flux maintenance and color temperature stability. The distribution, size, and direction of the air guide groove 43 and the air guide 42 can be optimized according to the heat load of the LED chip disk 10 and the housing layout, and the correspondence between the two ends of the air guide groove 43 can ensure that the airflow covers key heat-generating parts.

[0053] The structured air channel design enables efficient passive / active heat dissipation while maintaining overall housing strength, making it suitable for lighting applications requiring high luminous flux or long lifespan.

[0054] In this embodiment, the lamp bead disk 10 specifically includes a PCB board 13 and a plurality of lamp bead rings 11 disposed on the PCB board 13 along the same center. Each lamp bead ring 11 includes a plurality of lamp bead bodies 101 disposed along the same circumference.

[0055] Since the lamp cover 20 is a rotatable component, the electrical connection of the lamp bead disk 10 is designed to be fixed and not rotate with the cover (e.g., using fixed-position wires or flexible flat cables), thereby avoiding circuit fatigue or poor contact caused by the rotation of the cover. This layout not only meets the optical requirements for constructing multiple concentric light source layers, but also reserves electrical implementation paths for possible subsequent zone control, color temperature adjustment, or power management.

[0056] As a preferred embodiment, the light-shielding part 211 is provided with a gradient optical coating so that the light transmittance of the light-shielding part 211 gradually increases from its two sides to the middle.

[0057] It should be noted that the light-shielding part 211 of the lampshade plate 20 is provided with a gradient optical coating or a gradient light-transmitting structure, so that the light transmittance of the light-shielding part 211 gradually increases from both sides to the middle (i.e., the sides are darker and the middle is more transparent).

[0058] This gradient can be achieved through various processes, such as: using micro-dot printing with controllable density on the surface of the light-shielding area (the dot density gradually increases or decreases from the side edge to the center), using a semi-transparent coating with gradually changing thickness or refractive index, using laser drilling to form a film material with gradually changing aperture / pore spacing, or using gradient nanoscale thin film deposition to form a neutral density gradient.

[0059] The gradient design creates a smooth transition zone at the junction of the light-shielding part 211 and the adjacent light-emitting part 212, avoiding sudden changes in light intensity and obvious light spots caused by hard boundaries, thereby significantly improving the brightness uniformity and visual comfort of the emitting surface; at the same time, the gradient structure can maintain continuous brightness change characteristics when the lampshade disk 20 is rotated to adjust the light-emitting alignment angle, reducing the strip-shaped bright spots or flickering caused by fine-tuning of the angle.

[0060] To meet the requirements of mass production and durability, anti-aging polymer-based coatings or gradient microstructures formed in one step during injection molding can be preferred. Optical scattering particles (such as silicone microparticles) can be added to the coating or surface microtextures can be used to further adjust the diffusion effect. The design should take into account the thermal stability and adhesion of the coating to avoid light transmittance drift or peeling after long-term use.

[0061] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A lighting fixture that is easy to adjust, characterized in that, It includes a rotatable lamp bead disk and a lamp cover disk, the lamp cover disk covering the light-emitting surface of the lamp bead disk, and the lamp bead disk including at least one group of lamp beads arranged in a ring; At least one diffuser ring is provided on the lampshade panel, and multiple alternating light-shielding parts and light-emitting parts are arranged along the circumference of the diffuser ring. The light transmittance of the light-emitting parts is much greater than that of the light-shielding parts. Rotate the lamp shade to change the relative angle between the light-shielding part and the lamp bead body.

2. The easily adjustable light fixture of claim 1, wherein, A central hole is provided at the center of the lamp shade plate, and a tightening bolt is provided at the central hole. One end of the tightening bolt passes through the central hole and is threaded to the lamp bead plate.

3. The easily adjustable lighting fixture according to claim 1, characterized in that, The lampshade is provided with multiple sets of concentrically arranged diffuser rings, and a gap is formed between any two adjacent diffuser rings; The diffuser ring is a protruding ring that extends beyond the lamp cover disk, and a diffusion groove for light diffusion is formed on one end face of the protruding ring facing the lamp bead disk.

4. The easily adjustable lighting fixture according to claim 3, characterized in that, A mounting post is provided at a preset position within one of the intervals. The mounting post is hollowed out. A first magnetic part is provided inside the mounting post, and one end of the first magnetic part is exposed outside the mounting post. The lamp bead disk is provided with a second magnetic attraction part at a corresponding position. The second magnetic attraction part is magnetically connected to the first magnetic attraction part to position the lamp cover disk.

5. The easily adjustable light fixture of claim 3, wherein, It also includes a mounting plate, which is fixedly connected to the lamp bead plate by fastening bolts, and a gap space is formed between the mounting plate and the lamp bead plate. At least a portion of the lamp cover plate is housed in the gap space to provide rotation space for the lamp cover plate.

6. The easily adjustable light fixture of claim 5, wherein, The inner sidewall of the mounting plate is provided with a plurality of arc-shaped protrusions at intervals, and a limiting groove is formed between two adjacent arc-shaped protrusions. The arc-shaped protrusion abuts against the outermost diffuser ring, and a limiting protrusion is provided on the outer side of the lampshade disk. The limiting protrusion is housed in the limiting groove. When the limiting protrusion abuts against the side wall of the limiting groove, the lampshade disk is restricted from rotating.

7. The easily adjustable light fixture of claim 1, wherein, It also includes a housing assembly, on which the LED bead disk is mounted, and a heat dissipation ring is provided on the outer edge of the housing assembly; The heat dissipation ring has multiple air vents along its circumference, and the back of the housing assembly has multiple air ducts, with an air vent at each end of the air duct to form an airflow channel flowing through the back of the LED chip.

8. The easily adjustable light fixture of claim 1, wherein, The LED chip disk includes a PCB board and a plurality of LED chip rings disposed on the PCB board along the same center. The LED chip rings include a plurality of LED chip bodies disposed along the same circumference.

9. The easily adjustable lighting fixture according to claim 1, characterized in that, The light-shielding part is provided with a gradient optical coating so that the light transmittance of the light-shielding part gradually increases from its two sides to the middle.

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