Wide-angle adaptive control LED spotlight

Abstract

This invention relates to the field of lighting technology, and in particular to a wide-range angle adaptive adjustable LED spotlight, comprising a mounting base, a driving member, a driven member, a first transmission assembly, a second transmission assembly, a third transmission assembly, a fourth transmission assembly, a rod, an LED lamp body, and a fifth transmission assembly. When the driven member rotates along a first direction, the first transmission assembly is coupled and connected to the third transmission assembly, driving the rod and the LED lamp body to rotate in the horizontal plane via the fourth transmission assembly. When the driven member rotates along a second direction and the fifth transmission assembly is coupled and connected to the fourth transmission assembly, the second transmission assembly is coupled and connected to the fourth transmission assembly, driving the rod and the LED lamp body to rotate around the axis of the rod via the fifth transmission assembly. Only one power source is needed to achieve both horizontal rotation of the LED lamp body and angular deflection around the axis of the rod, effectively simplifying the structure and reducing manufacturing costs.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and in particular to a wide-range angle adaptive control LED spotlight. Background Technology

[0002] LED spotlights are characterized by directional light emission, high energy efficiency, and long lifespan, and are widely used in commercial displays, indoor lighting, stage lighting, and venue illumination. To meet the lighting coverage and directional illumination needs of different areas, LED spotlights typically need to have multi-dimensional adjustment functions, including horizontal circumferential rotation and beam angle deflection, to flexibly adjust the illumination position and angle.

[0003] Existing LED spotlight angle adjustment components mostly adopt a multi-motor independent drive structure, meaning that separate drive motors are set up to control the horizontal rotation and oscillation movements. This type of structure has significant shortcomings in practical applications: First, the setup of multiple motors and their associated transmission mechanisms and control units makes the overall structure complex and space-consuming, which is not conducive to the miniaturization and integration design of spotlight products, and directly increases the material and assembly costs of the product; Second, the coordinated operation of multiple motors requires a complex electronic control system to achieve synchronized movements, which is difficult to control and prone to problems such as asynchronous action response and coordination deviations. Moreover, after long-term use, wear and tear of transmission components can easily lead to malfunctions such as adjustment jamming and decreased positioning accuracy, making it difficult to guarantee adjustment stability. Summary of the Invention

[0004] The purpose of this invention is to overcome the aforementioned shortcomings and provide a wide-range angle adaptive adjustable LED spotlight. To achieve the above objective, the specific solution of this invention is as follows: A wide-range angle adaptive adjustable LED spotlight includes a mounting base, an active component mounted on the mounting base, a driven component rotatably mounted on the mounting base, a first transmission assembly and a second transmission assembly slidably mounted on the mounting base, a third transmission assembly and a fourth transmission assembly rotatably mounted on the mounting base, a rod rotatably passing through the fourth transmission assembly, LED lamp bodies disposed at both ends of the rod, and a fifth transmission assembly for coupling and transmitting the rod with the fourth transmission assembly; the third transmission assembly and the fourth transmission assembly are connected in a transmission manner. When the driven member rotates in the first direction, it is coupled and connected to the first transmission assembly, and the first transmission assembly is coupled and connected to the third transmission assembly, thereby driving the rod body to rotate along the horizontal plane where the rod body axis is located through the fourth transmission assembly; when the driven member rotates in the second direction and is connected to the fifth transmission assembly and the fourth transmission assembly, it is coupled and connected to the second transmission assembly, and the second transmission assembly is coupled and connected to the fourth transmission assembly, and the fourth transmission assembly drives the rod body to rotate around the axis of the rod body through the fifth transmission assembly; wherein, the first direction is opposite to the second direction.

[0005] Furthermore, the driven member is an incomplete gear.

[0006] Furthermore, the mounting base is provided with a first guide rod corresponding to the first transmission assembly and the second transmission assembly respectively; The first transmission assembly and the second transmission assembly have the same structure, both including a first rack and a second rack. The first rack is slidably sleeved on the outer peripheral wall of the corresponding first guide rod for coupling transmission with the incomplete gear. A first spring is connected between the first rack and the side wall of the mounting base. A second guide rod is provided at both ends of the first rack. A limiting platform is provided at the end of the second guide rod away from the first rack. A sliding tooth for coupling transmission with the incomplete gear is slidably sleeved on the outer peripheral wall of the second guide rod. A second spring is connected between the sliding tooth and the first rack. The second rack is fixed on the side of the first rack facing away from the incomplete gear. The second rack of the first transmission assembly is used for coupling transmission with the third transmission assembly, and the second rack of the second transmission assembly is used for coupling transmission with the fourth transmission assembly.

[0007] Furthermore, the third transmission assembly includes a first pulley, a first gear, and a first ratchet arranged coaxially. The first pulley is rotatably mounted on the mounting base. The upper end of the first pulley is connected to the fourth transmission assembly via a transmission belt. The lower end of the first pulley is provided with a first ratchet groove. The first gear is rotatably mounted on the mounting base and located directly below the first pulley. The journal of the first ratchet is fixedly sleeved with the journal of the first gear. The first ratchet is movably embedded in the first ratchet groove and engages with the first pulley in a one-way transmission through the first ratchet groove.

[0008] Furthermore, the fourth transmission assembly includes a second pulley, a second gear, a second ratchet, and a first bevel gear arranged coaxially. The second pulley and the first bevel gear are rotatably mounted on the mounting base. The second pulley is connected to the transmission belt. The upper end of the journal of the first bevel gear is provided with a second ratchet groove. The second gear is rotatably mounted on the mounting base and located between the second pulley and the first bevel gear. The journal of the second ratchet is fixedly sleeved with the journal of the second gear. The second ratchet is movably embedded in the second ratchet groove and engages with the second pulley in a one-way transmission through the second ratchet groove. The journal of the second pulley extends with a shaft body, which moves downward along its axis through the second gear, the second ratchet, and the first bevel gear, and then has a connecting part. The rod body rotates through the connecting part.

[0009] Furthermore, the fifth transmission component includes a second bevel gear, an electromagnet, a first permanent magnet, and a third spring. The second bevel gear is slidably sleeved on the outer peripheral wall of the rod and engages with the outer peripheral wall profile of the rod. The second bevel gear is used to mesh with the first bevel gear. The electromagnet is embedded in the connecting part. The first permanent magnet is embedded on the side of the second bevel gear facing the connecting part. The third spring is sleeved on the outer peripheral wall of the rod and located between the second bevel gear and the connecting part. The two ends of the third spring abut against the connecting part and the second bevel gear, respectively.

[0010] Furthermore, the connecting part is provided with a locking component for unlockably locking the second bevel gear. When the electromagnet is energized, the locking component releases the locking of the second bevel gear, and when the electromagnet is not energized, the locking component maintains the locking of the second bevel gear.

[0011] Furthermore, the locking assembly includes a locking pin movably passing through the connecting part, a second permanent magnet fixedly sleeved on the outer peripheral wall of the locking pin, and a fourth spring connecting the connecting part and the second permanent magnet; the second bevel gear is provided with a plurality of locking holes circumferentially, the number of locking holes being an integer multiple of the number of teeth of the second bevel gear, the locking pin being inserted into the corresponding locking hole when locking and withdrawing from the corresponding locking hole when unlocking; the stiffness of the fourth spring is greater than the stiffness of the third spring.

[0012] Furthermore, the mounting base is provided with a plurality of friction blocks and a plurality of spring pieces around the outer periphery of the first pulley. The plurality of friction blocks correspond one-to-one with the plurality of spring pieces. One side of the friction block is in frictional contact with the outer peripheral wall of the first pulley, and the other side is connected to one end of the corresponding spring piece. The other end of the spring piece is fixed on the mounting base.

[0013] Furthermore, the plurality of friction blocks and the plurality of spring pieces are distributed at equal intervals along the circumference, and the surface of the friction block that contacts the outer peripheral wall of the first pulley is an arc surface.

[0014] The beneficial effects of this invention are as follows: This invention uses a single driving component as the power input. Through the reverse rotation of the driven component along the first and second directions, it independently drives the first and second transmission components. Combined with the transmission cooperation of the third and fourth transmission components, and the coupling transmission control of the fifth transmission component on the rod body and the fourth transmission component, only one power source is needed to achieve the circumferential rotation of the LED lamp body along the horizontal plane containing the rod body axis, as well as the angular deflection around the rod body axis, effectively simplifying the LED... The lamp's drive and transmission structure reduces overall size and manufacturing costs, facilitating its placement in confined installation spaces. Simultaneously, the two adjustment modes can be switched and controlled solely by the rotation direction of the driven component, eliminating the need for multi-motor collaborative calculations. This simplifies the control logic and ensures reliability, effectively reducing the difficulty of multi-dimensional angle adjustment and avoiding issues such as adjustment stuttering and insufficient positioning accuracy that often occur with multi-motor collaborative drives. This enhances the smoothness and accuracy of angle adjustment. Furthermore, the transmission paths for horizontal rotation adjustment and illumination angle adjustment are independent and do not interfere with each other, allowing for independent adjustment of the illumination range and angle. This balances the needs for both wide-area lighting coverage and precise angle control, effectively improving the applicability and performance of LED lamps. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the LED spotlight of the present invention; Figure 2 This is a structural schematic diagram of the LED spotlight of the present invention from another perspective; Figure 3 This is a cross-sectional schematic diagram of the LED spotlight of the present invention; Figure 4 This is a schematic diagram of the structure of the LED spotlight concealed mounting bracket of the present invention; Figure 5 This is a schematic diagram of the structure of the first transmission component or the second transmission component of the present invention; Figure 6 This is a schematic diagram of the structure of the third transmission component of the present invention; Figure 7 This is a cross-sectional schematic diagram of the third transmission component of the present invention; Figure 8 This is a schematic diagram of the structure of the fourth transmission component of the present invention; Figure 9 This is a cross-sectional schematic diagram of the fourth transmission component of the present invention; Figure 10 This is a cross-sectional schematic diagram showing the cooperation of the rod body, the fourth transmission component, the fifth transmission component, and the locking component of the present invention; Figure 11 This is a schematic diagram of the structure of the first pulley, friction block, and spring sheet of the present invention. Explanation of reference numerals in the attached drawings: 1. Mounting base; 11. First guide rod; 12. Friction block; 13. Spring; 21. Driving element; 22. Driven element; 31. First transmission assembly; 32. Second transmission assembly; 331. First rack; 332. Second rack; 333. First spring; 334. Second guide rod; 335. Limiting platform; 336. Sliding tooth; 337. Second spring; 4. Third transmission assembly; 41. First pulley; 411. First ratchet groove; 42. 1. Gear; 43. First ratchet; 5. Fourth transmission assembly; 51. Second pulley; 511. Shaft; 512. Connecting part; 52. Second gear; 53. Second ratchet; 54. First bevel gear; 541. Second ratchet groove; 6. Rod; 61. LED lamp body; 71. Second bevel gear; 711. Locking hole; 72. Electromagnet; 73. First permanent magnet; 74. Third spring; 81. Locking pin; 82. Second permanent magnet; 83. Fourth spring; 9. Transmission belt. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not to limit the scope of the invention to this.

[0017] like Figures 1 to 11 As shown, a wide-range angle adaptive control LED spotlight of this embodiment includes a mounting base 1, a driving component 21, a driven component 22, a first transmission component 31, a second transmission component 32, a third transmission component 4, a fourth transmission component 5, a rod body 6, and a fifth transmission component. The driving element 21 is fixedly installed in the middle of the mounting base 1, and the driven element 22 is rotatably installed in the middle of the mounting base 1 and connected to the output end of the driving element 21, so as to rotate relative to the mounting base 1 under the drive of the driving element 21. Preferably, the driving element 21 is a motor and the driven element 22 is an incomplete gear. For example, the central angle of the toothed section of the incomplete gear is set to 180°-270°, and the central angle of the toothless section is 90-180°. The arc length of the toothed section is greater than the distance between the starting point of the meshing of the sliding tooth 336 and the first rack 331 to ensure meshing. The timing is stable; the first transmission component 31 and the second transmission component 32 are slidably mounted on the mounting base 1 and distributed on both sides of the incomplete gear, the third transmission component 4 and the fourth transmission component 5 are rotatably mounted on the mounting base 1 and distributed on both sides of the incomplete gear, the rod 6 is rotatably passed through the fourth transmission component 5, and LED lamp bodies 61 are fixedly mounted at both ends of the rod 6, the fifth transmission component is used to couple and drive the rod 6 with the fourth transmission component 5; the third transmission component 4 is drive-connected with the fourth transmission component 5; When the driven member 22 rotates in the first direction, it is coupled and connected to the first transmission component 31, and the first transmission component 31 is coupled and connected to the third transmission component 4, thereby driving the rod 6 to rotate the LED lamp body 61 along the horizontal plane where the axis of the rod 6 is located through the fourth transmission component 5; when the driven member 22 rotates in the second direction and is connected to the fifth transmission component and the fourth transmission component 5, it is coupled and connected to the second transmission component 32, and the second transmission component 32 is coupled and connected to the fourth transmission component 5, and the fourth transmission component 5 drives the rod 6 to rotate the LED lamp body 61 around the axis of the rod 6 through the fifth transmission component; wherein, the first direction is opposite to the second direction.

[0018] For example, such as Figure 4 As shown, the first direction is clockwise and the second direction is counterclockwise. In actual use, the motor drives the incomplete gear to rotate clockwise (e.g., the motor rotates forward). The incomplete gear meshes with the first transmission component 31, thereby driving the first transmission component 31 to slide relative to the mounting base 1. During the sliding process, the first transmission component 31 drives the third transmission component 4 to work. The third transmission component 4 synchronously drives the fourth transmission component 5 to work. The fourth transmission component 5 drives the rod 6 and the LED lamp body 61 to rotate on the horizontal plane where the axis of the rod 6 is located, thereby realizing the adjustment of the illumination range of the LED lamp body 61. During this process, the incomplete gear does not mesh with the second transmission component 32. When it is necessary to adjust the illumination angle of the LED lamp body 61, the rod body 6 is connected to the fourth transmission component 5 through the fifth transmission component. At this time, when the motor drives the incomplete gear to rotate counterclockwise (if the motor reverses), the incomplete gear meshes with the second transmission component 32, thereby driving the second transmission component 32 to slide relative to the mounting base 1. During the sliding process, the second transmission component 32 drives the fourth transmission component 5 to work. The fourth transmission component 5 drives the rod body 6 to rotate around its axis through the fifth transmission component. That is, the rod body 6 drives the LED lamp body 61 to rotate and swing, thereby realizing the adjustment of the illumination angle of the LED lamp body 61.

[0019] In this embodiment, the motor outputs power in two directions of rotation through forward and reverse rotation, which drives the first transmission component 31 and the second transmission component 32 to work respectively through the transmission cooperation of the third transmission component 4, the fourth transmission component 5 and the fifth transmission component. This allows the LED lamp body 61 to adjust the lighting direction at any angle within a set range, effectively simplifying the power drive structure, making the overall structure more compact, easy to install and arrange in a small space, and simple to control.

[0020] like Figures 1 to 5 As shown, the mounting base 1 is provided with a first guide rod 11 corresponding to the first transmission assembly 31 and the second transmission assembly 32, respectively, to provide guidance and limit for the first rack 331; The first transmission assembly 31 and the second transmission assembly 32 have the same structure. Both include a first rack 331 and a second rack 332. The first rack 331 is slidably sleeved on the outer peripheral wall of the corresponding first guide rod 11 for coupling transmission with the incomplete gear. A first spring 333 is connected between the first rack 331 and the side wall of the mounting base 1. A second guide rod 334 is provided at both ends of the first rack 331. A limiting platform 335 is provided at the end of the second guide rod 334 away from the first rack 331. A sliding tooth 336 for coupling transmission with the incomplete gear is slidably sleeved on the outer peripheral wall of the second guide rod 334. A second spring 337 is connected between the sliding tooth 336 and the first rack 331. The second rack 332 is fixed on the side of the first rack 331 facing away from the incomplete gear. The second rack 332 of the first transmission assembly 31 is used for coupling transmission with the third transmission assembly 4, and the second rack 332 of the second transmission assembly 32 is used for coupling transmission with the fourth transmission assembly 5.

[0021] Specifically, when the incomplete gear rotates clockwise, the sliding tooth 336 of the first transmission component 31 near the incomplete gear meshes with the incomplete gear. Since the sliding tooth 336 is restricted by the corresponding limiting platform 335 at this time, the incomplete gear drives the first rack 331 of the first transmission component 31 to slide axially along the first guide rod 11 via the sliding tooth 336, compressing the corresponding first spring 333. As the first rack 331 slides, it moves to mesh with the incomplete gear. After the sliding tooth 336 disengages from the incomplete gear, the incomplete gear... By engaging with the first rack 331, the first rack 331 continues to slide. During the sliding process of the first rack 331, the first rack 331 synchronously drives the second rack 332 to move. When the second rack 332 moves to engage with the third transmission component 4, the second rack 332 drives the third transmission component 4 to work, so as to adjust the illumination range of the LED lamp body 61. During this process, the teeth of the incomplete gear continuously squeeze the sliding teeth 336 of the second transmission component 32 close to the incomplete gear, so that the sliding teeth 336 reciprocate under the elastic force of the corresponding second spring 337. When the toothless part of the incomplete gear aligns with the first rack 331 of the first transmission component 31, the incomplete gear disengages from the first rack 331 of the first transmission component 31. The corresponding first spring 333 pushes the first rack 331 to drive the second rack 332 to reset. At this time, the third drive component idles and does not transmit rotational power to the fourth transmission component 5. After the reset is completed, the incomplete gear rotates again to engage with the sliding tooth 336 corresponding to the first transmission component 31. Then the above process is repeated to continue adjusting the illumination range of the LED lamp body 61.

[0022] Similarly, when the incomplete gear rotates counterclockwise, the sliding tooth 336 of the second transmission component 32 near the incomplete gear meshes with the incomplete gear. Since the sliding tooth 336 is restricted by the corresponding limiting platform 335 at this time, the incomplete gear drives the first rack 331 of the second transmission component 32 to slide along the axial direction of the first guide rod 11 through the sliding tooth 336, so that the corresponding first spring 333 is compressed. As the first rack 331 slides, the first rack 331 moves to mesh with the incomplete gear. After the sliding tooth 336 disengages from the incomplete gear, the incomplete gear continues to drive the first rack 331 to slide by meshing with the first rack 331. During the sliding process of the first rack 331, the first rack 331 synchronously drives the second rack 332 to move. When the second rack 332 moves to mesh with the fourth transmission component 5, the second rack 332 drives the fourth transmission component 5 to work, so that the fifth transmission component can drive the rod body 6 to rotate around its axis, thereby adjusting the illumination angle of the LED lamp body 61. During this process, the teeth of the incomplete gear continuously press against the sliding teeth 336 of the first transmission component 31, causing the sliding teeth 336 to reciprocate under the elastic force of the corresponding second spring 337. Similarly, when the toothless part of the incomplete gear aligns with the first rack 331 of the second transmission component 32, the first rack 331 and the second rack 332 of the second transmission component 32 reset under the elastic force of the corresponding first spring 333. At this time, the fourth drive component idles without transmitting rotational power to the fourth transmission component 5. After resetting, the incomplete gear rotates again to engage with the sliding teeth 336 corresponding to the second transmission component 32, and then the above process is repeated to continue adjusting the illumination range of the LED lamp body 61.

[0023] like Figures 2 to 4 , Figure 6 and Figure 7 As shown, the third transmission assembly 4 includes a first pulley 41, a first gear 42, and a first ratchet 43 coaxially arranged. The first pulley 41 is rotatably mounted on the mounting base 1. The upper end of the first pulley 41 is connected to the fourth transmission assembly 5 via a transmission belt 9. The lower end of the first pulley 41 is provided with a first ratchet groove 411. The first gear 42 is rotatably mounted on the mounting base 1 and located directly below the first pulley 41. The journal of the first ratchet 43 is fixedly sleeved with the journal of the first gear 42. The first ratchet 43 is movably embedded in the first ratchet groove 411 and engages with the first pulley 41 in a one-way transmission through the first ratchet groove 411.

[0024] Specifically, when the incomplete gear rotates clockwise, the first rack 331 of the first transmission assembly 31 meshes with the incomplete gear for transmission. The first rack 331 of the first transmission assembly 31 synchronously drives the second rack 332 to move. When the second rack 332 moves to mesh with the first gear 42, as the second rack 332 moves further, the second rack 332 drives the first gear 42 to rotate counterclockwise. The first gear 42 drives the first ratchet 43 to rotate synchronously. At this time, the first ratchet 43 meshes with the first ratchet groove 411 for transmission, thereby synchronously driving the first pulley 41 to rotate. The first pulley 41 synchronously drives the fourth transmission assembly 5 to work through the transmission belt 9. When the first rack 331 of the first transmission assembly 31 returns to its original position and slides under the action of the corresponding first spring 333, the first rack 331 of the first transmission assembly 31 drives the second rack 332 to move in the opposite direction, thereby driving the first gear 42 to rotate clockwise. Since the first ratchet 43 and the first ratchet groove 411 engage in unidirectional transmission, the first ratchet 43 rotates freely at this time and will not transmit power to the first pulley 41.

[0025] This embodiment achieves continuous horizontal circumferential stepping adjustment of the LED lamp body through the forward rotation of a single active component 21, eliminating the need for a separate horizontal drive motor. This effectively simplifies the transmission structure and reduces product size and cost. Combined with the ratchet unidirectional transmission structure, it achieves automatic power cut-off during the rack reset process, ensuring the stability of the lamp body's adjustment position. At the same time, it can achieve horizontal adjustment over a large angle range through the continuous rotation of the driven component 22. The adjustment process is smooth, without reverse jamming, and the positioning accuracy is reliable.

[0026] like Figure 1 , Figure 3 , Figure 4 as well as Figures 8 to 10 As shown, the fourth transmission assembly 5 includes a second pulley 51, a second gear 52, a second ratchet 53, and a first bevel gear 54 arranged coaxially. The second pulley 51 and the first bevel gear 54 are rotatably mounted on the mounting base 1. The second pulley 51 is connected to the transmission belt 9. The upper end of the journal of the first bevel gear 54 is provided with a second ratchet groove 541. The second gear 52 is rotatably mounted on the mounting base 1 and located between the second pulley 51 and the first bevel gear 54. The journal of the second ratchet 53 is fixedly sleeved with the journal of the second gear 52. The second ratchet 53 is movably embedded in the second ratchet groove 541 and engages with the second pulley 51 in a one-way transmission through the second ratchet groove 541. The journal of the second pulley 51 extends to a shaft body 511. The shaft body 511 moves downward along its axis and passes through the second gear 52, the second ratchet 53, and the first bevel gear 54 in sequence, and then provides a connecting part 512. The rod body 6 rotatably passes through the connecting part 512.

[0027] Specifically, when the incomplete gear rotates counterclockwise, the first rack 331 of the second transmission component 32 meshes with the incomplete gear, and the first rack 331 of the second transmission component 32 synchronously drives the second rack 332 to move. When the second rack 332 moves to mesh with the second gear 52, the second rack 332 drives the second gear 52 to rotate clockwise, and the second gear 52 drives the second ratchet 53 to rotate synchronously. At this time, the second ratchet 53 meshes with the second ratchet groove 541, and the second ratchet 53 synchronously drives the first bevel gear 54 to rotate synchronously. The first bevel gear 54 transmits the rotational power to the fifth transmission component, thereby driving the rod 6 to rotate around its axis, realizing the adjustment of the illumination angle of the LED lamp body 61.

[0028] When the first rack 331 of the second transmission assembly 32 returns to its original position and slides under the action of the corresponding first spring 333, the first rack 331 of the second transmission assembly 32 drives the second rack 332 to move in the opposite direction, thereby driving the second gear 52 to rotate counterclockwise. Since the second ratchet 53 and the second ratchet groove 541 engage in unidirectional transmission, the second ratchet 53 idles at this time and will not transmit power to the first bevel gear 54.

[0029] When the first pulley 41 rotates, the first pulley 41 drives the second pulley 51 to rotate synchronously through the transmission belt 9. The second pulley 51 drives the rod 6 to rotate around the axis of the second pulley 51 synchronously through the shaft 511 and the connecting part 512, thereby driving the two LED lamp bodies 61 to rotate and realize the adjustment of the illumination range.

[0030] like Figures 1 to 4 , Figure 10 As shown, the fifth transmission assembly includes a second bevel gear 71, an electromagnet 72, a first permanent magnet 73, and a third spring 74. The second bevel gear 71 is slidably sleeved on the outer peripheral wall of the rod 6 and engages with the outer peripheral wall surface of the rod 6. If a spline surface engagement is used, it ensures that the two rotate synchronously in the circumferential direction and allows the second bevel gear 71 to slide relative to the rod 6 in the axial direction. The second bevel gear 71 is used to mesh with the first bevel gear 54. The electromagnet 72 is embedded in the connecting part 512. The first permanent magnet 73 is embedded on the side of the second bevel gear 71 facing the connecting part 512. The third spring 74 is sleeved on the outer peripheral wall of the rod 6 and located between the second bevel gear 71 and the connecting part 512. The two ends of the third spring 74 abut against the connecting part 512 and the second bevel gear 71, respectively.

[0031] Specifically, initially, the electromagnet 72 is not energized, and the second bevel gear 71 moves away from the connecting part 512 under the elastic force of the third spring 74. When it is necessary to adjust the illumination angle of the LED lamp body 61, the electromagnet 72 is energized to generate a magnetic attraction force on the first permanent magnet 73, causing the second bevel gear 71 to overcome the elastic force of the third spring 74 and slide along the axial direction of the lamp body toward the connecting part 512 until the second bevel gear 71 slides to mesh with the first bevel gear 54. Then, the motor drives the incomplete gear to rotate counterclockwise, causing the second rack 332 of the second transmission component 32 to drive the second gear 52 to rotate clockwise. The second gear 52 synchronously drives the second ratchet 53 to rotate. The second ratchet 53 drives the first bevel gear 54 to rotate through the second ratchet groove 541. The first bevel gear 54 drives the second bevel gear 71 to drive the lamp body to rotate synchronously, thereby realizing the adjustment of the illumination angle.

[0032] After adjustment, the electromagnet 72 is de-energized, the magnetic attraction disappears, the third spring 74 pushes the second bevel gear 71 to slide back to its original position, disengaging from the first bevel gear 54, and the irradiation transmission link is disconnected; at the same time, the fourth spring 83 pushes the locking pin 81 to re-insert into the locking hole 711 corresponding to the second bevel gear 71, circumferentially locking the second bevel gear 71 and the rod 6 to prevent the lamp body from being accidentally deflected by external force.

[0033] In this way, the same active component 21 is used as the power source for both horizontal adjustment and azimuth adjustment. The step-by-step adjustment of the illumination angle can be achieved by rotating the active component 21 in the opposite direction, which further simplifies the overall drive and control structure. The two adjustment modes can be switched by simply rotating the active component 21. The control logic is simple and does not require multi-motor collaborative operation, thus avoiding the problems of synchronization error, adjustment lag and insufficient positioning accuracy of multi-motor drive from the root.

[0034] This embodiment describes a wide-range angle adaptive adjustable LED spotlight, such as... Figure 10As shown, the connecting part 512 is provided with a locking component for unlockably locking the second bevel gear 71. When the electromagnet 72 is energized, the locking component releases the lock on the second bevel gear 71, so that the second bevel gear 71 can drive the rod body 6 to rotate under the drive of the first bevel gear 54. When the electromagnet 72 is not energized, the locking component maintains the lock on the second bevel gear 71. Furthermore, the locking assembly includes a locking pin 81 movably passing through the connecting portion 512, a second permanent magnet 82 fixedly sleeved on the outer peripheral wall of the locking pin 81, and a fourth spring 83 connecting the connecting portion 512 and the second permanent magnet 82; the second bevel gear 71 is provided with a plurality of locking holes 711 extending circumferentially, the number of locking holes 711 being an integer multiple of the number of teeth of the second bevel gear 71, to ensure that the second bevel gear 71 has a corresponding locking hole 711 aligned with the locking pin 81 at any meshing position; the locking pin 81 is inserted into the corresponding locking hole 711 when locking and withdrawn from the corresponding locking hole 711 when unlocking; the stiffness of the fourth spring 83 is greater than the stiffness of the third spring 74. The magnetism of the second permanent magnet 82 is the same as that of the first permanent magnet 73.

[0035] Specifically, initially, the electromagnet 72 is de-energized, and the locking pin 81 is inserted into the corresponding locking hole 711 under the elastic force of the fourth spring 83, thereby locking the second bevel gear 71. When it is necessary to adjust the illumination angle, the electromagnet 72 is first energized. Since the stiffness of the fourth spring 83 is greater than that of the third spring 74, the first bevel gear 54 moves towards the first bevel gear 54 under the magnetic attraction between the electromagnet 72 and the first permanent magnet 73, overcoming the elastic force of the third spring 74, until the second bevel gear 71 moves to mesh with the first bevel gear 54. During this process, the locking pin 81 remains inserted into the lock. Inside the stop hole 711; then, under the magnetic attraction between the electromagnet 72 and the second permanent magnet 82, the locking pin 81 overcomes the elastic force of the fourth spring 83 and gradually exits from the locking hole 711, thereby releasing the lock on the second bevel gear 71. At this time, the motor drives the incomplete gear to rotate counterclockwise, thereby causing the second gear 52 of the second transmission assembly 32 to rotate clockwise. The second gear 52 drives the second ratchet 53 to rotate clockwise, and the second ratchet 53 drives the first bevel gear 54 to rotate clockwise through the first ratchet groove 411, thereby driving the second bevel gear 71 to rotate synchronously, realizing the adjustment of the irradiation angle.

[0036] This embodiment describes a wide-range angle adaptive adjustable LED spotlight, such as... Figure 3 and Figure 11As shown, the mounting base 1 is provided with multiple friction blocks 12 and multiple spring pieces 13 around the outer periphery of the first pulley 41. The multiple friction blocks 12 correspond one-to-one with the multiple spring pieces 13. One side of the friction block 12 is in frictional contact with the outer peripheral wall of the first pulley 41, and the other side is connected to one end of the corresponding spring piece 13. The other end of the spring piece 13 is fixed on the mounting base 1. Specifically, this embodiment provides a suitable damping torque for horizontal rotation adjustment by setting multiple spring pieces 13 and multiple friction blocks 12 in cooperation. Through the cooperation structure of the spring piece 13 and the friction block 12, the damping torque is provided. This will not hinder the normal angle adjustment action, and can reliably maintain the horizontal position of the lamp body after adjustment, preventing the lamp body from swaying due to its own weight or external vibration. This further improves the positioning stability and reliability of the lamp body after adjustment. Moreover, the structure is simple, the assembly is convenient, and the damping force is uniform and stable.

[0037] Preferably, multiple friction blocks 12 and multiple spring pieces 13 are distributed at equal intervals along the circumference. For example, the number of friction blocks 12 and spring pieces is set to four each, and the surface of the friction block 12 in contact with the outer peripheral wall of the first pulley 41 is an arc surface. The arc surface structure makes the contact between the friction block 12 and the first pulley 41 larger, so as to provide reliable friction damping torque.

[0038] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included within the protection scope of this patent application.

Claims

1. A wide-range angle adaptive adjustable LED spotlight, characterized in that, It includes a mounting base, an active member disposed on the mounting base, a driven member rotatably disposed on the mounting base, a first transmission assembly and a second transmission assembly slidably disposed on the mounting base, a third transmission assembly and a fourth transmission assembly rotatably disposed on the mounting base, a rod rotatably passing through the fourth transmission assembly, LED lamp bodies disposed at both ends of the rod, and a fifth transmission assembly for coupling and transmitting the rod with the fourth transmission assembly; the third transmission assembly and the fourth transmission assembly are connected in a transmission manner. When the driven member rotates in the first direction, it is coupled and connected to the first transmission assembly, and the first transmission assembly is coupled and connected to the third transmission assembly, thereby driving the rod body to rotate along the horizontal plane where the rod body axis is located through the fourth transmission assembly; when the driven member rotates in the second direction and is connected to the fifth transmission assembly and the fourth transmission assembly, it is coupled and connected to the second transmission assembly, and the second transmission assembly is coupled and connected to the fourth transmission assembly, and the fourth transmission assembly drives the rod body to rotate around the axis of the rod body through the fifth transmission assembly; wherein, the first direction is opposite to the second direction.

2. The wide-range angle adaptive adjustable LED spotlight according to claim 1, characterized in that, The driven component is an incomplete gear.

3. The wide-range angle adaptive adjustable LED spotlight according to claim 2, characterized in that, The mounting base is provided with a first guide rod corresponding to the first transmission component and the second transmission component respectively; The first transmission assembly and the second transmission assembly have the same structure, both including a first rack and a second rack. The first rack is slidably sleeved on the outer peripheral wall of the corresponding first guide rod for coupling transmission with the incomplete gear. A first spring is connected between the first rack and the side wall of the mounting base. A second guide rod is provided at both ends of the first rack. A limiting platform is provided at the end of the second guide rod away from the first rack. A sliding tooth for coupling transmission with the incomplete gear is slidably sleeved on the outer peripheral wall of the second guide rod. A second spring is connected between the sliding tooth and the first rack. The second rack is fixed on the side of the first rack facing away from the incomplete gear. The second rack of the first transmission assembly is used for coupling transmission with the third transmission assembly, and the second rack of the second transmission assembly is used for coupling transmission with the fourth transmission assembly.

4. A wide-range angle adaptive adjustable LED spotlight according to claim 3, characterized in that, The third transmission component includes a first pulley, a first gear, and a first ratchet arranged coaxially. The first pulley is rotatably mounted on a mounting base. The upper end of the first pulley is connected to the fourth transmission component via a transmission belt. The lower end of the first pulley is provided with a first ratchet groove. The first gear is rotatably mounted on the mounting base and located directly below the first pulley. The journal of the first ratchet is fixedly sleeved with the journal of the first gear. The first ratchet is movably embedded in the first ratchet groove and engages with the first pulley in a one-way transmission through the first ratchet groove.

5. A wide-range angle adaptive adjustable LED spotlight according to claim 4, characterized in that, The fourth transmission component includes a second pulley, a second gear, a second ratchet, and a first bevel gear arranged coaxially. The second pulley and the first bevel gear are rotatably mounted on the mounting base. The second pulley is connected to the transmission belt. The upper end of the journal of the first bevel gear is provided with a second ratchet groove. The second gear is rotatably mounted on the mounting base and located between the second pulley and the first bevel gear. The journal of the second ratchet is fixedly sleeved with the journal of the second gear. The second ratchet is movably embedded in the second ratchet groove and engages with the second pulley in a one-way transmission through the second ratchet groove. The journal of the second pulley extends with a shaft body, which moves downward along its axis through the second gear, the second ratchet, and the first bevel gear, and then has a connecting part. The rod body rotates through the connecting part.

6. A wide-range angle adaptive adjustable LED spotlight according to claim 5, characterized in that, The fifth transmission assembly includes a second bevel gear, an electromagnet, a first permanent magnet, and a third spring. The second bevel gear is slidably sleeved on the outer peripheral wall of the rod and engages with the outer peripheral wall profile of the rod. The second bevel gear is used to mesh with the first bevel gear. The electromagnet is embedded in the connecting part. The first permanent magnet is embedded on the side of the second bevel gear facing the connecting part. The third spring is sleeved on the outer peripheral wall of the rod and located between the second bevel gear and the connecting part. The two ends of the third spring abut against the connecting part and the second bevel gear, respectively.

7. A wide-range angle adaptive adjustable LED spotlight according to claim 6, characterized in that, The connecting part is provided with a locking component for unlockably locking the second bevel gear. When the electromagnet is energized, the locking component releases the locking of the second bevel gear, and when the electromagnet is not energized, the locking component maintains the locking of the second bevel gear.

8. A wide-range angle adaptive adjustable LED spotlight according to claim 7, characterized in that, The locking assembly includes a locking pin movably passing through the connecting part, a second permanent magnet fixedly sleeved on the outer peripheral wall of the locking pin, and a fourth spring connecting the connecting part and the second permanent magnet; the second bevel gear is provided with a plurality of locking holes circumferentially, the number of locking holes being an integer multiple of the number of teeth of the second bevel gear; the locking pin is inserted into the corresponding locking hole when locking and withdrawn from the corresponding locking hole when unlocking; the stiffness of the fourth spring is greater than that of the third spring.

9. A wide-range angle adaptive control LED spotlight according to any one of claims 1 to 8, characterized in that, The mounting base is provided with a plurality of friction blocks and a plurality of spring pieces around the outer periphery of the first pulley. The plurality of friction blocks correspond one-to-one with the plurality of spring pieces. One side of the friction block is in frictional contact with the outer peripheral wall of the first pulley, and the other side is connected to one end of the corresponding spring piece. The other end of the spring piece is fixed on the mounting base.

10. A wide-range angle adaptive adjustable LED spotlight according to claim 9, characterized in that, The plurality of friction blocks and the plurality of spring pieces are distributed at equal intervals along the circumference, and the surface of the friction block that contacts the outer peripheral wall of the first pulley is an arc surface.

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