Spotlight and angle adjusting mechanism thereof

Abstract

The utility model discloses a kind of angle adjusting mechanism of spotlight and spotlight thereof, it is related to indoor lighting equipment technical field.The angle adjusting mechanism includes adjusting ring and rotating ring, adjusting ring is fixed with radiator or light source module, rotating ring is connected with installation base and can rotate 360 degrees.Adjusting ring two sides are equipped with semi-open type circular groove and triangular convex tooth;Rotating ring inside is equipped with cylinder, its outer diameter is smaller than the inner diameter of groove 0.05-0.1mm, triangular sawtooth of arc arrangement is equipped in the sheet connected with cylinder.Rotating ring cylinder is loaded into adjusting ring by open mouth interference fit, convex tooth and sawtooth are engaged to form damping gear position.The utility model only needs two injection molding parts, can be assembled by hand, without auxiliary parts and special tool, solve the problem that existing mechanism manufacturing is complex, cost is high, angle adjusting is easy to loosen, with the advantages of high manufacturing efficiency, low cost, stable use, angle adjusting precision, applicable to deep anti-glare cylinder spotlight.

Description

Technical Field

[0001] This utility model relates to the field of indoor lighting equipment technology, and more specifically, to a spotlight angle adjustment mechanism and spotlight thereof, which is suitable for vertical angle adjustment scenarios of deep anti-glare tube spotlights. Background Technology

[0002] Deep anti-glare downlights are among the most widely used products in the indoor lighting field. Thanks to their excellent light focusing and anti-glare effects, they are widely applied in various scenarios such as homes, commercial shops, and offices. With increasingly fierce market competition, the angle adjustment method of spotlights has become one of the core directions for companies to showcase product performance and achieve product differentiation.

[0003] The angle adjustment of spotlights usually includes two dimensions: horizontal angle adjustment and vertical angle adjustment. The structural design of horizontal angle adjustment is relatively mature and the implementation difficulty is low. However, due to the influence of multiple constraints such as the internal space layout of the lamp, structural stability, and user operation convenience, the structural design of vertical angle adjustment is diverse and the implementation difficulty is much higher than that of horizontal angle adjustment.

[0004] Currently, there are numerous types of spotlight adjustment mechanisms publicly available in the industry, mainly including riveted connection type, screw shaft type, gear transmission type, slide rail type, linkage mechanism, and damping wheel type. However, these existing adjustment mechanisms generally suffer from the problem of balancing adjustment experience and manufacturing cost, and are also accompanied by many defects such as complex manufacturing process and low product yield. For example, adjustment mechanisms using riveted connection or screw shaft connection not only have a poor user experience when adjusting, but also require special equipment to rivet or assemble screws during the production process, increasing pre-processing steps and leading to a cumbersome and inefficient production process; while gear transmission and linkage mechanisms, although offering some improvement in adjustment accuracy, have a large number of parts and complex assembly, significantly increasing manufacturing costs, and are prone to problems such as component wear and loosening of the adjustment mechanism after long-term use.

[0005] In summary, existing spotlight angle adjustment mechanisms cannot simultaneously meet the production needs of lighting companies to simplify manufacturing processes, reduce the number of parts, and lower production costs, as well as users' needs for stable and reliable angle adjustment, convenient operation, and a good user experience. Therefore, there is an urgent need for a spotlight angle adjustment mechanism that is simple in structure, low in cost, and has excellent performance to solve the above problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an angle adjustment mechanism for a spotlight. Spotlights with such an angle adjustment mechanism have a simple structure, low cost and excellent performance.

[0007] The technical solution of this utility model is: an angle adjustment mechanism for a spotlight, including an adjustment ring and a rotating ring; the adjustment ring is used to connect and fix to the heat sink or light source module of the spotlight, and the rotating ring is used to connect to the mounting base of the spotlight and can rotate 360° around the mounting surface; The adjusting ring has semi-open circular grooves on both sides in a symmetrical manner, and the opening of the groove has a chamfer. The distal end of the adjusting ring in the opposite direction to the opening has triangular protrusions. The inner side of the rotating ring is provided with cylinders in a symmetrical manner, and the thin plates connected to the cylinders are provided with a number of triangular serrations arranged in an arc. The cylindrical rotating ring is inserted into the groove through the open opening of the adjusting ring groove with an interference fit. The triangular protrusions of the adjusting ring and the triangular sawtooth of the rotating ring mesh with each other to achieve damping gear angle adjustment.

[0008] The groove is cut into a quarter circle to form an open opening, and the remaining three-quarter circle forms a semi-enclosed structure.

[0009] The outer diameter of the cylinder is 0.05 - 0.1 mm smaller than the inner diameter of the semi-open groove of the adjusting ring.

[0010] The adjusting ring is made of any one of the following plastic materials: PC, ABS, POM, or PA.

[0011] The rotating ring can be made of plastic or metal; the plastic part can be made of ordinary plastic or engineering plastic, and the metal part can be made of magnesium, aluminum alloy, copper or stainless steel.

[0012] When the rotating ring is a plastic part, the material cut from the inner cylinder forms a hollow annular structure.

[0013] A 15° chamfer is provided on the outer edge of the opening.

[0014] The triangular serrations are evenly arranged along the arc of the thin sheet, and the tooth shape is adapted to the triangular convex teeth of the adjusting ring.

[0015] This utility model also provides a spotlight, including a heat sink, a light source module, a mounting base, and an angle adjustment mechanism for the spotlight as described above; the adjustment ring of the angle adjustment mechanism is fixedly connected to the heat sink or the light source module, and the rotating ring of the angle adjustment mechanism is fixedly connected to the mounting base.

[0016] The technical effects of this utility model are: 1. Significantly simplify manufacturing processes and improve production efficiency. The adjusting ring of this invention is a one-piece injection-molded plastic part, while the rotating ring can be made of either plastic or metal. The plastic rotating ring also employs a one-piece injection molding process, allowing the core structure to be formed in a single mold without additional processing. Compared to existing angle-adjusting mechanisms that require multiple parts and specialized equipment for assembly, such as rivet connections or screw-driven mechanisms, this design not only ensures the stability of the part's dimensions and shape but also significantly improves manufacturing efficiency. Furthermore, this design eliminates the need for production and procurement of auxiliary parts like rivets and screws, reduces pre-processing steps, effectively lowers material waste during production, improves product yield, and provides favorable conditions for large-scale production.

[0017] 2. Simplify assembly operations and reduce assembly costs. This angle adjustment mechanism consists of only two core components: an adjusting ring and a rotating ring. During assembly, the cylindrical rotating ring is manually inserted through the semi-open groove using an interference fit, utilizing the elasticity of the adjusting ring's plastic material. No screws, rivets, or other fasteners are required, nor are specialized tools or skilled operators necessary. Compared to the complex assembly process of existing angle adjustment mechanisms, this solution significantly reduces assembly time and labor costs, while also preventing product malfunctions due to improper assembly, further improving the economic efficiency of the production process.

[0018] 3. Enhances the stability and reliability of angle adjustment, extending product lifespan. The interlocking of the triangular protrusions of the adjusting ring and the arc-shaped triangular serrations of the rotating ring creates a stable damping mechanism. This not only provides clear feedback during angle adjustment but also effectively prevents angle shifts or loosening due to vibration or wear after adjustment, addressing the instability of existing mechanisms. Furthermore, the precise fit between the adjusting and rotating rings—with the rotating ring's cylindrical outer diameter 0.05-0.1mm smaller than the adjusting ring's groove inner diameter—ensures smooth angle adjustment while preventing wobbling caused by excessive clearance. The elasticity of the plastic components and the structural strength of the metal components are well-suited for different usage scenarios, further enhancing product durability and extending the overall lifespan of the spotlight.

[0019] 4. Optimize user experience and enhance product market competitiveness. This angle adjustment mechanism is easy to operate, allowing users to easily and precisely adjust the vertical angle of the spotlight. The 360° rotating ring can meet the lighting angle requirements of different scenarios. The clear damping feedback makes the angle adjustment operation more controllable, avoiding the blind adjustment that occurs with mechanisms without damping, and significantly improving the user experience. Furthermore, reduced production and assembly costs give the product a competitive price advantage in the market, while maintaining excellent performance. This dual optimization of production costs and user experience significantly enhances the product's market competitiveness. Attached Figure Description

[0020] Figure 1 This is an exploded view of the spotlight of this utility model.

[0021] Figure 2 yes Figure 1 A magnified view of a portion of the image.

[0022] Figure 3 This is an assembly drawing of the rotating ring and adjusting ring of this utility model.

[0023] Figure 4 yes Figure 3 A sectional view. Detailed Implementation

[0024] The following detailed description of the angle adjustment mechanism of a spotlight and its technical solution, with reference to specific embodiments, will enable those skilled in the art to accurately implement the technical solution.

[0025] The core of this utility model lies in achieving a stable and convenient vertical angle adjustment function for the spotlight through the precise cooperation between the adjusting ring and the rotating ring. The following is a detailed description of the specific implementation structure, assembly, and working process of the angle adjustment mechanism.

[0026] I. Core Component Structure and Parameter Settings like Figures 1-4As shown, the adjusting ring 10 is injection molded from PC plastic material, which combines good plasticity and structural stability, meeting the elasticity and durability requirements during repeated angle adjustments. The adjusting ring has an overall ring structure, used for fixed connection with the spotlight's heat sink, achieving a stable assembly of the angle adjustment mechanism and the light source module. On both sides of the adjusting ring 10, two semi-open circular grooves 11 are symmetrically distributed outwards. Each groove 11 has a 1 / 4 arc cut along its circumference as an opening, and the remaining 3 / 4 arc forms a semi-enclosed groove structure. This structure can effectively limit the mating parts and facilitate assembly operations. A 15° chamfer is provided on the outer edge of the opening. The chamfer guides the insertion of subsequent parts, reducing resistance and preventing jamming or damage to parts during assembly. At the distal end of the adjusting ring opposite to the opening, a triangular protrusion 12 is integrally formed. The tooth tip angle is 30° and the tooth height is 1.5mm, used to form a meshing engagement with the rotating ring 20.

[0027] In this embodiment, the rotating ring 20 is injection molded from ABS plastic material. To prevent shrinkage and deformation of the cylindrical structure after injection molding, a portion of the material is cut axially inside the two symmetrically arranged cylinders 21 on the inner side of the rotating ring, forming a hollow annular structure. The rotating ring 20 is used to connect and fix to the mounting base of the spotlight, and its outer side can rotate 360° with the mounting base. The outer diameter of the cylinder is set to 8mm, and the inner diameter of the semi-open circular groove of the adjusting ring is set to 8.08mm. The outer diameter of the cylinder is 0.08mm smaller than the inner diameter of the groove. This dimensional difference is within the optimal fitting range of 0.05-0.1mm, which can simultaneously ensure smooth rotation and structural fit. On the thin sheet connecting the cylinders on both sides of the rotating ring 20, 12 triangular serrations 22 are evenly arranged along the arc direction. The tooth profile parameters of the serrations match the triangular protrusions 12 of the adjusting ring 10, and the spacing between adjacent serrations is 5°, ensuring uniform gear feedback during angle adjustment.

[0028] II. Assembly process of the angle adjustment mechanism The angle adjustment mechanism can be assembled by hand without any special tools. The specific steps are as follows: Hold the rotating ring and align the two annular cylinders at its ends with the openings of the two semi-open circular grooves on the adjusting ring; Apply slight pressure towards the groove. Because the adjusting ring is made of PC plastic material, which has good elasticity, the opening will slightly deform and open under pressure. At this time, push the cylinder into the groove with an interference fit. When the cylinder is fully inserted into 3 / 4 of the semi-enclosed groove, the opening of the adjusting ring resets under its own elasticity, thus axially limiting the cylinder and preventing the rotating ring from falling off. Once assembled, the triangular protrusions on the adjusting ring mesh precisely with the triangular serrations on the rotating ring. At this point, the rotating ring and the adjusting ring are tightly fitted together and can rotate flexibly around their common axis. The assembly of the angle adjustment mechanism is now complete.

[0029] III. Working Process of the Angle Adjustment Mechanism After assembly, fix the adjusting ring to the spotlight heat sink and the rotating ring to the spotlight mounting base to achieve vertical angle adjustment of the spotlight. The working process is as follows: When it is necessary to adjust the lighting angle of the spotlight, manually move the light source module of the spotlight to drive the adjustment ring connected to the heat sink to rotate synchronously; When the adjustment ring rotates, its triangular protrusions slide along the arc-shaped sawtooth surface of the rotating ring. Each time it passes through a sawtooth, it produces a clear sense of gear shifting, forming damping feedback. Users can accurately position the lighting angle based on the gear shifting sensation. Once the angle is adjusted to the correct position, the triangular protrusions mesh tightly with the corresponding serrations, effectively preventing the spotlight from shifting or loosening due to vibration or other factors during use by utilizing the self-locking characteristic of the toothed engagement. The rotating ring can rotate 360° around the mounting surface with the mounting base. Combined with the angle adjustment ring, it can achieve vertical angle coverage of the spotlight within the full circumference range, meeting the lighting needs of different scenarios.

[0030] The plastic materials and specific size parameters selected in this embodiment can be flexibly adjusted according to the actual specifications of the spotlight. For example, the adjusting ring and rotating ring can also be made of plastic materials such as POM and PA, and the rotating ring can also be replaced with metal materials such as aluminum alloy. The size of the cylinder and the groove can be scaled proportionally. As long as the size difference is within the range of 0.05-0.1mm and the meshing structure of the convex teeth and the saw teeth is compatible, the technical effect of this utility model can be achieved.

Claims

1. A spotlight angle adjustment mechanism, characterized in that, It includes an adjustment ring and a rotating ring; the adjustment ring is used to connect and fix to the heat sink or light source module of the spotlight, and the rotating ring is used to connect to the mounting base of the spotlight and can rotate 360° around the mounting surface. The adjusting ring has semi-open circular grooves on both sides in a symmetrical manner, and the opening of the groove has a chamfer. The distal end of the adjusting ring in the opposite direction to the opening has triangular protrusions. The inner side of the rotating ring is provided with cylinders in a symmetrical manner, and the thin plates connected to the cylinders are provided with a number of triangular serrations arranged in an arc. The cylindrical rotating ring is inserted into the groove through the open opening of the adjusting ring groove with an interference fit. The triangular protrusions of the adjusting ring and the triangular sawtooth of the rotating ring mesh with each other to achieve damping gear angle adjustment.

2. The spotlight angle adjustment mechanism according to claim 1, characterized in that, The groove is cut into a quarter circle to form an open opening, and the remaining three-quarter circle forms a semi-enclosed structure.

3. The spotlight angle adjustment mechanism according to claim 2, characterized in that, The outer diameter of the cylinder is 0.05 - 0.1 mm smaller than the inner diameter of the semi-open groove of the adjusting ring.

4. The spotlight angle adjustment mechanism according to claim 1, characterized in that, The adjusting ring is made of any one of the following plastic materials: PC, ABS, POM, or PA.

5. The spotlight angle adjustment mechanism according to claim 1, characterized in that, The rotating ring can be made of plastic or metal; the plastic part can be made of ordinary plastic or engineering plastic, and the metal part can be made of magnesium, aluminum alloy, copper or stainless steel.

6. The spotlight angle adjustment mechanism according to claim 3, characterized in that, When the rotating ring is a plastic part, the material cut from the inner cylinder forms a hollow annular structure.

7. The spotlight angle adjustment mechanism according to claim 1, characterized in that, A 15° chamfer is provided on the outer edge of the opening.

8. The spotlight angle adjustment mechanism according to claim 1, characterized in that, The triangular serrations are evenly arranged along the arc of the thin sheet, and the tooth shape is adapted to the triangular convex teeth of the adjusting ring.

9. A spotlight, characterized in that, The light source module includes a heat sink, a mounting base, and an angle adjustment mechanism for the spotlight as described in any one of claims 1-8; the adjustment ring of the angle adjustment mechanism is fixedly connected to the heat sink or the light source module, and the rotating ring of the angle adjustment mechanism is fixedly connected to the mounting base.

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