Self-adjusting fastened down lamp

Abstract

The application discloses a self-adjusting fastening down lamp, which comprises a down lamp body, a rotating mechanism, a push-pull mechanism sliding rail, a rotating push-pull disc, a radial guide mechanism, an extension top pressing mechanism, a guide sliding rod and a clamping mechanism; the rotating push-pull disc is provided with an inclined guide strip-shaped hole; the rotating mechanism drives the rotating push-pull disc to rotate around the down lamp body; when the rotating push-pull disc rotates, the guide sliding rod moves radially under the guidance of the inclined guide strip-shaped hole, so that the extension top pressing mechanism slides along the radial guide mechanism to the outer radial direction, and then the clamping mechanism is unfolded outward to abut against the inner wall of the ceiling and realize automatic locking; the application realizes the synchronous radial unfolding of the multiple clamping mechanisms through rotating operation, and can adapt to the installation requirements of ceilings with different hole diameters without manual adjustment or the use of additional tools, so that the adjustment efficiency is improved, the installation operation is simple, the clamping is firm and reliable, and the edge of the ceiling is not damaged.

Description

Technical Field

[0001] This application relates to the field of energy-saving lighting equipment technology, and in particular to a self-adjusting and fastening downlight. Background Technology

[0002] Existing downlights typically use a fixed spring clip structure when installed in building ceilings or plasterboard, requiring precise selection based on the opening diameter. However, in actual construction, ceiling openings often have significant tolerances. When the opening diameter deviates from the downlight specifications, there is a risk of insecure installation, loosening, or even damage to the ceiling material. This increases construction complexity and rework costs, and also reduces installation reliability. Furthermore, existing downlight structures cannot achieve stable locking within different opening diameter ranges, often requiring additional tools for adjustment during installation, affecting construction efficiency and consistency. Summary of the Invention

[0003] In order to improve the shortcomings of existing downlight installation structures, such as poor adaptability, reliance on tools for adjustment, low installation efficiency, and risk of damaging the ceiling, this application provides a self-adjusting and fastening downlight.

[0004] The self-adjusting fastening downlight provided in this application adopts the following technical solution:

[0005] A self-adjusting and fastening downlight includes a downlight body, a toggle rotating mechanism sleeved on the outer wall of the downlight body, a push-pull mechanism slide rail sleeved on the outside of the downlight body and connected to the outer wall of the downlight body, a rotating push-pull plate slidably connected to the push-pull mechanism slide rail and whose outer wall meshes with the toggle rotating mechanism, a radial guide mechanism connected to the outer wall of the downlight body, a telescopic pressing mechanism movably inserted into the radial guide mechanism and used to move along the radial direction of the downlight body, a guide sliding rod rotatably connected to one end of the telescopic pressing mechanism and movably inserted into the rotating push-pull plate, and a clamping mechanism connected to the other end of the telescopic pressing mechanism.

[0006] The rotating push-pull plate is provided with inclined guide strip holes arranged in a row along the circumference of the rotating push-pull plate, and the guide sliding rod is inserted into the inclined guide strip holes.

[0007] By adopting the above technical solution, the rotating mechanism drives the rotating push-pull plate to rotate around the downlight body. One end of the guide sliding rod is rotatably connected to the telescopic pressing mechanism, and the other end is inserted into the inclined guide strip hole on the rotating push-pull plate. When the rotating push-pull plate rotates, the guide sliding rod moves radially under the guidance of the inclined guide strip hole, thereby driving the telescopic pressing mechanism to slide outward along the radial guide mechanism, and then pushing the clamping mechanism to unfold outward to abut against the inner wall of the ceiling and achieve automatic locking. This application achieves the synchronous radial unfolding of multiple clamping mechanisms through rotation operation, which can adapt to the installation needs of ceilings with different hole diameters without manual adjustment or the use of additional tools. It not only improves the adjustment efficiency, but also makes the installation operation simple, the clamping firm and reliable, and will not damage the edge of the ceiling.

[0008] Preferably, the toggle rotation mechanism includes a toggle slide rail assembly connected to the outer wall of the downlight body, a toggle rotation ring assembly rotatably connected to the toggle slide rail assembly, and a transmission gear rotatably connected to the toggle slide rail assembly and meshing with the toggle rotation ring assembly.

[0009] By adopting the above technical solution, the sliding rail assembly is fixedly connected to the outer wall of the downlight body to support and restrict the movement trajectory of the rotating ring assembly. The rotating ring assembly is installed on the sliding rail assembly in a sliding guide manner and can rotate in a restricted manner along the sliding rail assembly. When the outer side of the rotating ring assembly is rotated, the rotating ring assembly drives the transmission gear to rotate and further transmits the rotational power to other parts meshing with the transmission gear, realizing the drive transmission process from manual to internal push-pull structure. This application can realize the unified adjustment of the entire downlight clamping system through single-point tossing, which is not only easy to operate, but also has high rotational transmission efficiency, compact and reliable mechanism, and improved installation convenience.

[0010] Preferably, the actuating rotating ring assembly includes a rotating ring body and an annular internal rack connected to the inner wall of the rotating ring body and meshing with the transmission gear. The lower side of the rotating ring body is also provided with an actuating sliding groove arranged circumferentially along the rotating ring body.

[0011] The sliding rail assembly includes a sliding rail support plate connected to the outer wall of the downlight body, and a sliding guide protrusion connected to the side edge of the sliding rail support plate and movably inserted into the sliding groove.

[0012] By adopting the above technical solution, when the rotating ring body rotates axially around the downlight body, it can drive the transmission gear to rotate. The sliding guide protrusion is inserted into the sliding groove, thereby limiting the rotation path of the rotating ring body and preventing the rotating ring body from shifting axially. The slide rail support plate in the sliding rail assembly is fixed on the outer wall of the downlight body to provide an installation base for the rotating ring body. Through the sliding guide protrusion, the guiding and limiting cooperation of the sliding ring assembly is realized. This application can accurately convert the external rotating force into circumferential rotational motion, while ensuring structural stability, smooth transmission, and high control precision, thereby realizing the unified and synchronous deployment of the clamping mechanism.

[0013] Preferably, the outer wall of the rotating ring body is further provided with a limiting threaded through hole communicating with the actuating sliding groove; the actuating rotating ring assembly also includes a limiting plug bolt inserted into the limiting threaded through hole and whose end is used to press against the sliding guide flange.

[0014] By adopting the above technical solution, after the clamping mechanism presses down and clamps the side edge of the ceiling, the limiting plug bolt is inserted into the limiting threaded through hole. The end of the limiting plug bolt faces the sliding guide protrusion and forms a pressing fit, thereby restricting the relative movement between the rotating ring body and the sliding guide protrusion. The pre-tightening effect of the limiting plug bolt can effectively prevent the relative rotation between the rotating ring body and the sliding guide protrusion after the clamping mechanism presses down and clamps the side edge of the ceiling, thus improving the structural stability and service life of the clamping lock. The limiting fit structure design of this application is simple, precise, easy to operate, and can prevent loosening, providing reliable limiting protection.

[0015] Preferably, the rotary push-pull plate includes a push-pull plate body and an annular external rack sleeved on the outer edge of the push-pull plate body and meshing with the transmission gear;

[0016] The push-pull plate body is provided with an annular guide groove, and the upper end of the push-pull mechanism slide rail is slidably inserted into the annular guide groove; the inclined guide strip hole is provided on the push-pull plate body.

[0017] By adopting the above technical solution, when the transmission gear rotates, it drives the annular external rack to rotate. The annular external rack drives the entire push-pull plate body to rotate around the downlight body. The annular guide groove is used to guide and restrict the movement path of the push-pull plate body on the slide rail of the push-pull mechanism to avoid derailment. When the push-pull plate body rotates, the inclined guide strip hole will apply a radial component force to the guide sliding rod, thereby pushing the telescopic top pressing mechanism connected to the guide sliding rod to expand radially, realizing the automatic extension of the downlight clamping mechanism. This application realizes the synchronous expansion of multiple clamping units through the mechanical transmission chain of rotation, guidance, and push-pull. It is not only compact in structure, efficient in transmission, and stable in guidance, but also convenient for adaptive installation of large tolerance ceiling hole diameters.

[0018] Preferably, the radial guiding mechanism includes a radial guiding disk connected to the outer wall of the downlight body and located above the rotating push-pull disk, and a telescopic limiting plate located above the radial guiding disk and connected to both the radial guiding disk and the downlight body. The radial guiding disk has a telescopic guiding groove located below the telescopic limiting plate. The telescopic pressing mechanism is slidably inserted into the telescopic guiding groove, and the telescopic pressing mechanism and the telescopic guiding groove are arranged in an array along the circumference of the radial guiding disk.

[0019] By adopting the above technical solution, the radial guide plate and the telescopic limiting plate are used to guide and limit the multi-point array support structure of the telescopic pressing mechanism. The radial guide plate serves as the basic guide platform for the telescopic pressing mechanism, and multiple telescopic guide grooves are used for the sliding insertion of the telescopic pressing mechanism. The telescopic limiting plate is located above the radial guide plate and is used to stabilize the running height of the telescopic pressing mechanism and limit its upward jumping during operation. When the rotating push-pull plate drives the guide sliding rod inserted in the inclined guide strip hole to move radially, the telescopic pressing mechanism connected to the guide sliding rod slides out along the telescopic guide groove. Since the telescopic pressing mechanism and the telescopic guide groove are arranged in a circumferential array, multiple clamping points are simultaneously deployed. This application enables the downlight to be reliably fixed by automatic synchronous pressing in multiple directions when facing ceiling openings of different sizes. It is not only accurate in guidance, reliable in limiting, balanced in deployment, and highly adaptable, but also not easy to misalign.

[0020] Preferably, the telescopic pressing mechanism has a clamping clearance hole on its side wall and a clamping guide hole located at the end of the telescopic pressing mechanism and communicating with the clamping clearance hole.

[0021] The clamping mechanism includes a hinge frame connected to the end of the telescopic pressing mechanism, an upper clamping plate hinged to the upper end of the hinge frame and located above the telescopic pressing mechanism, a lower clamping plate hinged to the lower end of the hinge frame and located below the telescopic pressing mechanism, and a clamping push slider inserted into the clamping guide hole and located between the upper clamping plate and the lower clamping plate; one end of the clamping push slider extends from the end of the telescopic pressing mechanism, and the other end is inserted into the clamping clearance hole; the ends of the upper clamping plate and the lower clamping plate near the downlight body are inserted into the clamping clearance hole and press against the end of the clamping push slider.

[0022] By adopting the above technical solution, the middle section of the clamping push slider is inserted into the clamping guide hole and located between the upper clamping plate and the lower clamping plate, forming the central hub for the transmission of clamping force. When the rotating push-pull plate drives the guide sliding rod to move radially outward and pushes the telescopic top-pressing mechanism to unfold outward, it drives the clamping push slider to move outward. When the inner wall of the edge of the ceiling hole is inserted between the upper clamping plate and the lower clamping plate and pushes the clamping push slider to move closer to the downlight body, the end of the clamping push slider exerts a top-pressing effect on the upper clamping plate and the lower clamping plate inserted in the clamping clearance hole, thereby driving the upper clamping plate and the lower clamping plate to be relatively hinged. The relative swinging causes the upper and lower clamping plates to rotate around the hinge point with the hinge frame. The upper and lower clamping plates in the clamping clearance hole gradually open, and the upper and lower clamping plates extending from the telescopic top pressing mechanism press against the edge side wall of the ceiling hole, completing the secure locking of the downlight. This application can achieve automatic unfolding and clamping under external force, and a stable clamping force is formed by slider control and hinge amplification. At the same time, the structural design of the clamping clearance hole and clamping guide hole avoids interference or jamming during the clamping process. The overall structure realizes the automation and stabilization of the clamping action and is suitable for ceiling holes with different opening tolerances.

[0023] Preferably, both the upper clamping plate and the lower clamping plate include a ceiling clamping part extending outside the telescopic pressing mechanism, and an inclined pressing part connected to the ceiling clamping part and inserted into the clamping clearance hole. The connection position of the ceiling clamping part and the inclined pressing part is hinged to the hinge frame.

[0024] By adopting the above technical solution, the inclined pressing part is inserted into the clamping clearance hole of the telescopic pressing mechanism to receive the radial pressing force of the clamping push slider, while the ceiling clamping part extends from the outside of the telescopic pressing mechanism as a load-bearing part that directly contacts the inner wall of the ceiling hole and achieves clamping and fixation. When the clamping push slider moves inward under the push of the inner wall of the ceiling hole, the clamping push slider applies an outward pressing force to the inclined pressing part. The outward pressing force is converted into a swinging motion of the ceiling clamping part around the hinge axis at the hinge point, thereby realizing the synchronous flipping of the upper clamping plate and the lower clamping plate and pressing them against the edge of the ceiling, forming a stable and reliable clamping state. This application can effectively clamp the inner wall of the ceiling hole by cooperating with the inclined pressing part and the ceiling clamping part. At the same time, the hinge design can effectively amplify the thrust and improve the clamping stability. It not only improves the adaptability of the action, but also makes the structure flexible and the clamping force uniform.

[0025] Preferably, the clamping push slider sidewall is provided with a slider limiting groove, and the telescopic pressing mechanism is provided with a slider limiting protrusion that extends into the clamping guide hole and is inserted into the slider limiting groove.

[0026] By adopting the above technical solution, the slider limiting groove is used to limit the movement path of the clamping push slider in the clamping guide hole. The slider limiting protrusion is inserted in the slider limiting groove to form a precise guide and constraint on the movement direction and displacement range of the clamping push slider. When the clamping push slider slides in the clamping guide hole, the slider limiting protrusion is always embedded in the slider limiting groove to ensure that the clamping push slider is stably advanced along the length direction of the slider limiting groove and to prevent the clamping push slider from deviating, tilting or rotating misaligned, thereby ensuring the synchronicity of the clamping action and the accuracy of the force transmission direction. This application not only provides linear guidance function during the pushing process, but also forms a physical stop at the end position to prevent the slider from overtravel, thereby improving the reliability and stability of the entire clamping mechanism.

[0027] Preferably, the downlight body includes a light shield, a lens mechanism inserted into the light shield, and a light source mechanism connected to the lens mechanism and located between the light shield and the lens mechanism.

[0028] By adopting the above technical solution, the light shield is an external structural component used to block lateral stray light and guide the light output direction. The lens mechanism is inserted inside the light shield and is used to converge, refract, or diffuse the light from the light source mechanism to optimize the light output angle and illumination uniformity. The light source mechanism is set between the light shield and the lens mechanism, serving as the light-emitting core and working with the optical system to output the required illumination effect. After the light source mechanism is lit, it emits light. The lens mechanism performs secondary regulation on the light, which is then guided by the light shield to be projected onto the target area. This application has a compact layout and precise light effect control, which can effectively improve the lighting quality and reduce glare interference. At the same time, the presence of the light shield also helps to protect the internal optical components and prevent dust and damage.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. By rotating the rotating mechanism, the rotating push-pull plate is driven to rotate around the downlight body. One end of the guide sliding rod is rotatably connected to the telescopic top pressing mechanism, and the other end is inserted into the inclined guide strip hole on the rotating push-pull plate. When the rotating push-pull plate rotates, the guide sliding rod moves radially under the guidance of the inclined guide strip hole, thereby driving the telescopic top pressing mechanism to slide outward along the radial guide mechanism, and then pushing the clamping mechanism to unfold outward to abut against the inner wall of the ceiling and achieve automatic locking. This application realizes the synchronous radial unfolding of multiple clamping mechanisms through rotation operation. It can adapt to the installation needs of ceilings with different hole diameters without manual adjustment or the use of additional tools. It not only improves the adjustment efficiency, but also makes the installation operation simple, the clamping firm and reliable, and will not damage the edge of the ceiling.

[0031] 2. The middle section of the clamping push slider is inserted into the clamping guide hole and located between the upper and lower clamping plates, forming the central hub for the transmission of clamping force. When the rotating push-pull plate drives the guide sliding rod to move radially outward and pushes the telescopic top-pressing mechanism to unfold outward, it drives the clamping push slider to move outward. When the inner wall of the ceiling hole edge is inserted between the upper and lower clamping plates and pushes the clamping push slider to move closer to the downlight body, the end of the clamping push slider exerts a top-pressing effect on the upper and lower clamping plates inserted in the clamping clearance hole, thereby causing the upper and lower clamping plates to swing relative to the hinge frame. The upper and lower clamping plates rotate around the hinge point with the hinge frame, and the upper and lower clamping plates in the clamping clearance hole gradually open. The upper and lower clamping plates extending from the telescopic top pressing mechanism press against the edge side wall of the ceiling hole, completing the secure locking of the downlight. This application can achieve automatic unfolding and clamping under external force, and a stable clamping force is formed by slider control and hinge amplification. At the same time, the structural design of the clamping clearance hole and clamping guide hole avoids interference or jamming during the clamping process. The overall structure realizes the automation and stabilization of the clamping action, and is suitable for ceiling holes with different opening tolerances. Attached Figure Description

[0032] Figure 1 This is an exploded structural diagram of an embodiment of this application.

[0033] Figure 2 This is a cross-sectional view of an embodiment of this application. Figure 1 .

[0034] Figure 3 This is a cross-sectional view of an embodiment of this application. Figure 2 .

[0035] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Downlight body; 11. Light shield; 12. Lens mechanism; 13. Light source mechanism; 2. Rotating mechanism; 21. Rotating slide rail assembly; 22. Rotating ring assembly; 23. Transmission gear; 211. Slide rail support plate; 212. Sliding guide flange; 221. Rotating ring body; 222. Annular inner rack; 223. Rotating sliding groove; 224. Limiting threaded through hole; 225. Limiting plug bolt; 3. Push-pull mechanism slide rail; 4. Rotating push-pull plate; 41. Push-pull plate body; 42. Annular outer... 43. Rack; 5. Annular guide groove; 6. Radial guide mechanism; 7. Radial guide disc; 8. Telescopic limiting plate; 9. Telescopic guide groove; 10. Telescopic pressing mechanism; 11. Clamping clearance hole; 12. Clamping guide hole; 13. Slider limiting flange; 14. Guide sliding rod; 15. Clamping mechanism; 16. Hinge frame; 17. Upper clamping plate; 18. Lower clamping plate; 19. Clamping push slider; 10. Slider limiting groove; 11. Ceiling clamping part; 12. Inclined pressing part; 13. Inclined guide strip hole. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1 to 4 This application will be described in further detail.

[0039] This application discloses a self-adjusting fastening downlight. (See also...) Figure 1 and 2 A self-adjusting and fastening downlight includes a downlight body 1, a toggle rotation mechanism 2 sleeved on the outer wall of the downlight body 1, a push-pull mechanism slide rail 3 sleeved on the outer side of the downlight body 1 and connected to the outer wall of the downlight body 1, a rotating push-pull plate 4 slidably connected to the push-pull mechanism slide rail 3 and whose outer wall meshes with the toggle rotation mechanism 2, a radial guide mechanism 5 connected to the outer wall of the downlight body 1, a telescopic pressing mechanism 6 movably inserted into the radial guide mechanism 5 and used to move along the radial direction of the downlight body 1, a guide sliding rod 7 rotatably connected to one end of the telescopic pressing mechanism 6 and movably inserted into the rotating push-pull plate 4, and a clamping mechanism 8 connected to the other end of the telescopic pressing mechanism 6.

[0040] The rotating push-pull plate 4 is provided with inclined guide strip holes 9 arranged in a row along the circumference of the rotating push-pull plate 4, and the guide sliding rod 7 is inserted into the inclined guide strip holes 9.

[0041] This application uses a rotating mechanism 2 to drive a rotating push-pull plate 4 to rotate around the downlight body 1. One end of the guide sliding rod 7 is rotatably connected to the telescopic pressing mechanism 6, and the other end is inserted into the inclined guide strip hole 9 on the rotating push-pull plate 4. When the rotating push-pull plate 4 rotates, the guide sliding rod 7 moves radially under the guidance of the inclined guide strip hole 9, thereby driving the telescopic pressing mechanism 6 to slide outward along the radial guide mechanism 5, and then pushing the clamping mechanism 8 to unfold outward to abut against the inner wall of the ceiling and achieve automatic locking. This application achieves the synchronous radial unfolding of multiple clamping mechanisms 8 through rotation operation, which can adapt to the installation needs of ceilings with different hole diameters without manual adjustment or the use of additional tools. It not only improves the adjustment efficiency, but also makes the installation operation simple, the clamping firm and reliable, and will not damage the edge of the ceiling.

[0042] Furthermore, such as Figure 2 As shown, the toggle rotation mechanism 2 includes a toggle slide rail assembly 21 connected to the outer wall of the downlight body 1, a toggle rotation ring assembly 22 rotatably connected to the toggle slide rail assembly 21, and a transmission gear 23 rotatably connected to the toggle slide rail assembly 21 and meshing with the toggle rotation ring assembly 22.

[0043] The sliding rail assembly 21 of this application is fixedly connected to the outer wall of the downlight body 1 to support and restrict the movement trajectory of the rotating ring assembly 22. The rotating ring assembly 22 is installed on the sliding rail assembly 21 in a sliding guide manner and can rotate in a restricted manner along the sliding rail assembly 21. When the outer side of the rotating ring assembly 22 is rotated, the rotating ring assembly 22 drives the transmission gear 23 to rotate and further transmits the rotational power to other parts meshing with the transmission gear 23, realizing the drive transmission process from manual to internal push-pull structure. This application can realize the unified adjustment of the entire downlight clamping system through single-point tossing, which is not only easy to operate, but also has high rotational transmission efficiency, compact and reliable mechanism, and improved installation convenience.

[0044] Furthermore, such as Figure 2 As shown, the rotating ring assembly 22 includes a rotating ring body 221 and an annular internal rack 222 connected to the inner wall of the rotating ring body 221 and meshing with the transmission gear 23. The rotating ring body 221 is also provided with a rotating sliding groove 223 arranged circumferentially along the lower side of the rotating ring body 221.

[0045] The sliding rail assembly 21 includes a sliding rail support plate 211 connected to the outer wall of the downlight body 1, and a sliding guide flange 212 connected to the side edge of the sliding rail support plate 211 and movably inserted into the sliding groove 223.

[0046] When the rotating ring body 221 rotates axially around the downlight body 1, it can drive the transmission gear 23 to rotate. The sliding guide protrusion 212 is inserted into the actuating sliding groove 223, thereby limiting the rotation path of the rotating ring body 221 and preventing the rotating ring body 221 from deviating axially. The slide rail support plate 211 in the actuating slide rail assembly 21 is fixed on the outer wall of the downlight body 1 to provide an installation base for the rotating ring body 221. Through the sliding guide protrusion 212, the actuating rotating ring assembly 22 is guided and limited. This application can accurately convert the external rotating actuating force into circumferential rotational motion, while ensuring structural stability, smooth transmission, and high control precision, thereby achieving the unified and synchronous deployment of the clamping mechanism 8.

[0047] Specifically, such as Figure 2 As shown, the outer wall of the rotating ring body 221 is also provided with a limiting threaded through hole 224 that communicates with the actuating sliding groove 223; the actuating rotating ring assembly 22 also includes a limiting plug bolt 225 that is inserted into the limiting threaded through hole 224 and whose end is used to press against the sliding guide protrusion 212.

[0048] When the clamping mechanism 8 clamps the side edge of the ceiling, the limiting plug bolt 225 is inserted into the limiting threaded through hole 224. The end of the limiting plug bolt 225 faces the sliding guide protrusion 212 and forms a top-pressing fit, thereby restricting the relative movement between the rotating ring body 221 and the sliding guide protrusion 212. The pre-tightening effect of the limiting plug bolt 225 can effectively prevent the relative rotation between the rotating ring body 221 and the sliding guide protrusion 212 after the clamping mechanism 8 clamps the side edge of the ceiling, thus improving the structural stability and service life of the clamping lock. The limiting fit structure design of this application is simple, precise, easy to operate, and can prevent loosening, providing reliable limiting protection.

[0049] The 225 limit plug bolt is preferably a bolt.

[0050] More specifically, such as Figure 1 and Figure 3 As shown, the rotary push-pull plate 4 includes a push-pull plate body 41 and an annular external rack 42 sleeved on the outer edge of the push-pull plate body 41 and meshing with the transmission gear 23.

[0051] The push-pull plate body 41 is provided with an annular guide groove 43, and the upper end of the push-pull mechanism slide rail 3 is slidably inserted into the annular guide groove 43; the inclined guide strip hole 9 is provided on the push-pull plate body 41.

[0052] When the transmission gear 23 rotates, it drives the annular external rack 42 to rotate. The annular external rack 42 drives the entire push-pull plate body 41 to rotate around the downlight body 1. The annular guide groove 43 is used to guide and restrict the movement path of the push-pull plate body 41 on the push-pull mechanism slide rail 3 to avoid derailment. When the push-pull plate body 41 rotates, the inclined guide strip hole 9 will apply a radial component force to the guide sliding rod 7, thereby pushing the telescopic top pressing mechanism 6 connected to the guide sliding rod 7 to expand radially, realizing the automatic extension of the downlight clamping mechanism 8. This application realizes the synchronous expansion of multiple clamping units through the mechanical transmission chain of rotation, guidance, and push-pull. It is not only compact in structure, efficient in transmission, and stable in guidance, but also convenient for adaptive installation of large tolerance ceiling hole diameters.

[0053] In addition, such as Figure 1 and Figure 3 As shown, the radial guide mechanism 5 includes a radial guide disk 51 connected to the outer wall of the downlight body 1 and located above the rotating push-pull disk 4, and a telescopic limiting plate 52 located above the radial guide disk 51 and connected to the radial guide disk 51 and the downlight body 1 respectively. The radial guide disk 51 is provided with a telescopic guide groove 53 located below the telescopic limiting plate 52. The telescopic pressing mechanism 6 is slidably inserted into the telescopic guide groove 53. The telescopic pressing mechanism 6 and the telescopic guide groove 53 are arranged in an array along the circumference of the radial guide disk 51.

[0054] The radial guide plate 51 and the telescopic limiting plate 52 of this application are used to guide and limit the multi-point array of the telescopic pressing mechanism 6. The radial guide plate 51 serves as the basic guide platform for the telescopic pressing mechanism 6. Multiple telescopic guide grooves 53 are used for the sliding insertion of the telescopic pressing mechanism 6. The telescopic limiting plate 52 is located above the radial guide plate 51 and is used to stabilize the running height of the telescopic pressing mechanism 6 and limit its upward jumping during operation. When the rotating push-pull plate 4 drives the guide sliding rod 7 inserted in the inclined guide strip hole 9 to move radially, the telescopic pressing mechanism 6 connected to the guide sliding rod 7 slides outward along the telescopic guide groove 53. Since the telescopic pressing mechanism 6 and the telescopic guide groove 53 are arranged in a circumferential array, multiple clamping points are simultaneously deployed. This application enables the downlight to be reliably fixed by automatic synchronous pressing in multiple directions when facing ceiling openings of different sizes. It is not only accurate in guidance, reliable in limiting, balanced in deployment, and highly adaptable, but also not easy to misalign.

[0055] And, as Figure 3 and Figure 4 As shown, the telescopic pressing mechanism 6 has a clamping clearance hole 61 on its side wall and a clamping guide hole 62 located at the end of the telescopic pressing mechanism 6 and communicating with the clamping clearance hole 61.

[0056] The clamping mechanism 8 includes a hinge frame 81 connected to the end of the telescopic pressing mechanism 6, an upper clamping plate 82 hinged to the upper end of the hinge frame 81 and located above the telescopic pressing mechanism 6, a lower clamping plate 83 hinged to the lower end of the hinge frame 81 and located below the telescopic pressing mechanism 6, and a clamping push slider 84 inserted in the clamping guide hole 62 and located between the upper clamping plate 82 and the lower clamping plate 83; one end of the clamping push slider 84 extends out from the end of the telescopic pressing mechanism 6, and the other end is inserted in the clamping clearance hole 61. The ends of the upper clamping plate 82 and the lower clamping plate 83 near the downlight body 1 are inserted in the clamping clearance hole 61 and press against the end of the clamping push slider 84.

[0057] The clamping push slider 84 of this application is inserted in the middle of the clamping guide hole 62 and located between the upper clamping plate 82 and the lower clamping plate 83, forming the central hub for the transmission of clamping force. When the rotating push-pull plate 4 drives the guide sliding rod 7 to move radially outward and pushes the telescopic top pressing mechanism 6 to unfold outward, it drives the clamping push slider 84 to move outward. When the inner wall of the edge of the ceiling hole is inserted between the upper clamping plate 82 and the lower clamping plate 83 and pushes the clamping push slider 84 to move closer to the downlight body 1, the end of the clamping push slider 84 forms a top pressing effect on the upper clamping plate 82 and the lower clamping plate 83 inserted in the clamping clearance hole 61, thereby driving the upper clamping plate 82 and the lower clamping plate 83 relative to the hinge frame. 81 achieves relative swing, causing the upper clamping plate 82 and the lower clamping plate 83 to rotate around the hinge point with the hinge frame 81 respectively. The upper clamping plate 82 and the lower clamping plate 83 in the clamping clearance hole 61 gradually open, and the upper clamping plate 82 and the lower clamping plate 83 extending from the telescopic top pressing mechanism 6 press against the edge side wall of the ceiling hole, completing the firm locking of the downlight. This application can achieve automatic unfolding and clamping under external force drive, and a stable clamping force is formed by slider control and hinge amplification. At the same time, the structural setting of the clamping clearance hole 61 and the clamping guide hole 62 avoids interference or jamming during the clamping process. The overall structure realizes the automation and stabilization of the clamping action, and is suitable for ceiling holes with different opening tolerances.

[0058] Furthermore, such as Figure 4 As shown, both the upper clamping plate 82 and the lower clamping plate 83 include a ceiling clamping part 821 extending out of the telescopic pressing mechanism 6, and an inclined pressing part 822 connected to the ceiling clamping part 821 and inserted into the clamping clearance hole 61. The connection position of the ceiling clamping part 821 and the inclined pressing part 822 is hinged to the hinge frame 81.

[0059] The inclined pressing part 822 of this application is inserted into the clamping clearance hole 61 of the telescopic pressing mechanism 6 to receive the radial pressing force of the clamping push slider 84, while the ceiling clamping part 821 extends out of the telescopic pressing mechanism 6 and serves as a load-bearing part that directly contacts the inner wall of the ceiling hole and achieves clamping and fixation. When the clamping push slider 84 moves inward under the push of the inner wall of the ceiling hole, the clamping push slider 84 applies an outward pressing force to the inclined pressing part 822. The outward pressing force is converted into the swinging motion of the ceiling clamping part 821 around the hinge axis at the hinge point, thereby realizing the synchronous flipping of the upper clamping plate 82 and the lower clamping plate 83 and pressing them against the edge of the ceiling to form a stable and reliable clamping state. This application can effectively clamp the inner wall of the ceiling hole through the cooperation of the inclined pressing part 822 and the ceiling clamping part 821. At the same time, the hinge design can effectively amplify the thrust and improve the clamping stability. It not only improves the adaptability of the action, but also has a flexible structural response and uniform clamping force.

[0060] Furthermore, such as Figure 2 As shown, the side wall of the clamping push slider 84 is provided with a slider limiting groove 85, and the telescopic pressing mechanism 6 is provided with a slider limiting flange 63 that extends into the clamping guide hole 62 and is inserted into the slider limiting groove 85.

[0061] The slider limiting groove 85 of this application is used to limit the movement path of the clamping push slider 84 within the clamping guide hole 62. The slider limiting protrusion 63 is inserted into the slider limiting groove 85, forming a precise guide and constraint on the movement direction and displacement range of the clamping push slider 84. When the clamping push slider 84 slides within the clamping guide hole 62, the slider limiting protrusion 63 is always embedded in the slider limiting groove 85, ensuring that the clamping push slider 84 is stably advanced along the length direction of the slider limiting groove 85 and preventing the clamping push slider 84 from deviating, tilting or rotating misaligned, thereby ensuring the synchronicity of the clamping action and the accuracy of the force transmission direction. This application not only provides linear guidance during the pushing process, but also forms a physical stop at the end position to prevent the slider from overtravel, improving the reliability and stability of the entire clamping mechanism 8.

[0062] Specifically, such as Figure 2 As shown, the downlight body 1 includes a light shield 11, a lens mechanism 12 inserted in the light shield 11, and a light source mechanism 13 connected to the lens mechanism 12 and located between the light shield 11 and the lens mechanism 12.

[0063] The light shield 11 in this application is an external structural component used to block stray light from the side and guide the direction of light output. The lens mechanism 12 is inserted inside the light shield 11 and is used to converge, refract, or diffuse the light from the light source mechanism 13 to optimize the light output angle and illumination uniformity. The light source mechanism 13 is located between the light shield 11 and the lens mechanism 12, serving as the light-emitting core and working with the optical system to output the required illumination effect. After the light source mechanism 13 is lit, it emits light. The lens mechanism 12 performs secondary regulation on the light, which is then guided by the light shield 11 and projected onto the target area. This application has a compact layout and precise light effect control, which can effectively improve the lighting quality and reduce glare interference. At the same time, the presence of the light shield 11 also helps to protect the internal optical components and prevent dust and damage.

[0064] The implementation principle of a self-adjusting fastening downlight according to an embodiment of this application is as follows:

[0065] By rotating the rotating mechanism 2, the rotating push-pull plate 4 is driven to rotate around the downlight body 1. One end of the guide sliding rod 7 is rotatably connected to the telescopic top pressing mechanism 6, and the other end is inserted into the inclined guide strip hole 9 on the rotating push-pull plate 4. When the rotating push-pull plate 4 rotates, the guide sliding rod 7 moves radially under the guidance of the inclined guide strip hole 9, thereby driving the telescopic top pressing mechanism 6 to slide along the radial guide mechanism 5 in the outer diameter direction, and then pushing the clamping mechanism 8 to unfold outward to abut against the inner wall of the ceiling and achieve automatic locking. This application realizes the synchronous radial unfolding of multiple clamping mechanisms 8 through rotation operation. It can adapt to the ceiling installation requirements of different hole diameters without manual adjustment or the use of additional tools. It not only improves the adjustment efficiency, but also makes the installation operation simple, the clamping firm and reliable, and will not damage the edge of the ceiling.

[0066] The middle section of the clamping push slider 84 is inserted into the clamping guide hole 62 and located between the upper clamping plate 82 and the lower clamping plate 83, forming the central hub for the transmission of clamping force. When the rotating push-pull plate 4 drives the guide sliding rod 7 to move radially outward and pushes the telescopic top-pressing mechanism 6 to unfold outward, it drives the clamping push slider 84 to move outward. When the inner wall of the edge of the ceiling hole is inserted between the upper clamping plate 82 and the lower clamping plate 83 and pushes the clamping push slider 84 to move closer to the downlight body 1, the end of the clamping push slider 84 forms a top-pressing effect on the upper clamping plate 82 and the lower clamping plate 83 inserted in the clamping clearance hole 61, thereby driving the upper clamping plate 82 and the lower clamping plate 83 relative to the hinge frame 81. The relative swinging mechanism allows the upper clamping plate 82 and the lower clamping plate 83 to rotate around the hinge point with the hinge frame 81. The upper clamping plate 82 and the lower clamping plate 83 in the clamping clearance hole 61 gradually open. The upper clamping plate 82 and the lower clamping plate 83 extending from the telescopic top pressing mechanism 6 press against the edge side wall of the ceiling hole, thus completing the secure locking of the downlight. This application can achieve automatic unfolding and clamping under external force drive, and a stable clamping force is formed by slider control and hinge amplification. At the same time, the structural design of the clamping clearance hole 61 and the clamping guide hole 62 avoids interference or jamming during the clamping process. The overall structure realizes the automation and stabilization of the clamping action and is suitable for ceiling holes with different opening tolerances.

[0067] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-adjusting and fastening downlight, characterized in that, The device includes a downlight body (1), a rotating mechanism (2) sleeved on the outer wall of the downlight body (1), a push-pull mechanism slide rail (3) sleeved on the outer side of the downlight body (1) and connected to the outer wall of the downlight body (1), a rotating push-pull plate (4) slidably connected to the push-pull mechanism slide rail (3) and whose outer wall meshes with the rotating mechanism (2), a radial guide mechanism (5) connected to the outer wall of the downlight body (1), a telescopic pressing mechanism (6) movably inserted into the radial guide mechanism (5) and used to move along the radial direction of the downlight body (1), a guide sliding rod (7) rotatably connected to one end of the telescopic pressing mechanism (6) and movably inserted into the rotating push-pull plate (4), and a clamping mechanism (8) connected to the other end of the telescopic pressing mechanism (6). The rotating push-pull plate (4) is provided with inclined guide strip holes (9) arranged in a row along the circumference of the rotating push-pull plate (4), and the guide sliding rod (7) is inserted into the inclined guide strip holes (9); The toggle rotation mechanism (2) includes a toggle slide rail assembly (21) connected to the outer wall of the downlight body (1), a toggle rotation ring assembly (22) rotatably connected to the toggle slide rail assembly (21), and a transmission gear (23) rotatably connected to the toggle slide rail assembly (21) and meshing with the toggle rotation ring assembly (22). The rotating push-pull plate (4) includes a push-pull plate body (41) and an annular external rack (42) sleeved on the outer edge of the push-pull plate body (41) and meshing with the transmission gear (23); The push-pull plate body (41) is provided with an annular guide groove (43), and the upper end of the push-pull mechanism slide rail (3) is slidably inserted into the annular guide groove (43); the inclined guide strip hole (9) is provided on the push-pull plate body (41); The radial guide mechanism (5) includes a radial guide disk (51) connected to the outer wall of the downlight body (1) and located above the rotating push-pull disk (4), and a telescopic limiting plate (52) located above the radial guide disk (51) and connected to the radial guide disk (51) and the downlight body (1) respectively. The radial guide disk (51) is provided with a telescopic guide groove (53) located below the telescopic limiting plate (52). The telescopic pressing mechanism (6) is slidably inserted into the telescopic guide groove (53). The telescopic pressing mechanism (6) and the telescopic guide groove (53) are arranged in an array along the circumference of the radial guide disk (51).

2. The self-adjusting and fastening downlight according to claim 1, characterized in that, The rotating ring assembly (22) includes a rotating ring body (221) and an annular internal rack (222) connected to the inner wall of the rotating ring body (221) and meshing with the transmission gear (23). The rotating ring body (221) is also provided with a rotating sliding groove (223) arranged circumferentially along the rotating ring body (221) on its lower side. The sliding rail assembly (21) includes a sliding rail support plate (211) connected to the outer wall of the downlight body (1), and a sliding guide protrusion (212) connected to the side edge of the sliding rail support plate (211) and movably inserted into the sliding groove (223).

3. A self-adjusting and fastening downlight according to claim 2, characterized in that, The outer wall of the rotating ring body (221) is also provided with a limiting threaded through hole (224) that communicates with the actuating sliding groove (223); the actuating rotating ring assembly (22) also includes a limiting plug bolt (225) inserted into the limiting threaded through hole (224) and whose end is used to press against the sliding guide flange (212).

4. A self-adjusting and fastening downlight according to claim 1, characterized in that, The telescopic pressing mechanism (6) has a clamping clearance hole (61) on its side wall, and a clamping guide hole (62) located at the end of the telescopic pressing mechanism (6) and communicating with the clamping clearance hole (61). The clamping mechanism (8) includes a hinge frame (81) connected to the end of the telescopic pressing mechanism (6), an upper clamping plate (82) hinged to the upper end of the hinge frame (81) and located above the telescopic pressing mechanism (6), a lower clamping plate (83) hinged to the lower end of the hinge frame (81) and located below the telescopic pressing mechanism (6), and a clamping push slider (84) inserted in the clamping guide hole (62) and located between the upper clamping plate (82) and the lower clamping plate (83); one end of the clamping push slider (84) extends from the end of the telescopic pressing mechanism (6), and the other end is inserted in the clamping clearance hole (61). The ends of the upper clamping plate (82) and the lower clamping plate (83) near the downlight body (1) are inserted in the clamping clearance hole (61) and press against the end of the clamping push slider (84).

5. A self-adjusting and fastening downlight according to claim 4, characterized in that, Both the upper clamping plate (82) and the lower clamping plate (83) include a ceiling clamping part (821) extending outside the telescopic pressing mechanism (6) and an inclined pressing part (822) connected to the ceiling clamping part (821) and inserted into the clamping clearance hole (61). The connection position of the ceiling clamping part (821) and the inclined pressing part (822) is hinged to the hinge frame (81).

6. A self-adjusting and fastening downlight according to claim 4, characterized in that, The clamping push slider (84) has a slider limiting groove (85) on its side wall, and the telescopic pressing mechanism (6) has a slider limiting flange (63) that extends into the clamping guide hole (62) and is inserted into the slider limiting groove (85).

7. A self-adjusting and fastening downlight according to claim 1, characterized in that, The downlight body (1) includes a light shield (11), a lens mechanism (12) inserted in the light shield (11), and a light source mechanism (13) connected to the lens mechanism (12) and located between the light shield (11) and the lens mechanism (12).

Images