An easily adjustable LED lighting device and its usage method

Abstract

This invention provides an easily adjustable LED lighting device and its usage method, belonging to the technical field of LED lighting devices. It includes a fixed housing; a fluorescent lampshade fixedly connected to the inner walls of the fixed housing; an arc-shaped lamp holder fixedly connected to the inner walls of the fluorescent lampshade; and multiple sets of parallel LED strips embedded in the lamp slots of the arc-shaped lamp holder. A current detector in the operating terminal detects in real time, in series, the amount of current required for the remaining LED strips to light up, and then controls the magnitude of the current input to the multiple LED strips, ensuring that the input current matches the remaining lit LED strips, thereby maintaining the brightness of the remaining LED strips. This achieves a reduction in the lighting range while keeping the lighting brightness constant. During the reduction of the lighting range, the input current decreases synchronously, maintaining lighting brightness while reducing power consumption, thus saving electricity in the LED lighting device.

Description

Technical Field

[0001] This invention belongs to the field of LED lighting device technology, specifically relating to an easily adjustable LED lighting device and its usage method. Background Technology

[0002] Lighting devices are equipment that emit light to illuminate a specific area or object. Depending on the usage scenario and function, lighting devices can be divided into various types, such as outdoor lighting (including lawn lights, street lights, courtyard lights, high-mast lights, wall lights, underwater lights, etc.), indoor lighting (including wall lights, etc.), light guide lighting systems, and intelligent lighting systems.

[0003] LED lighting devices, also known as light-emitting diode lighting devices, are lighting equipment that uses solid-state semiconductor materials to generate light. LED lighting devices use solid-state semiconductor chips as light-emitting materials. In semiconductors, excess energy is released through the recombination of charge carriers, causing photon emission and directly emitting red, yellow, blue, and green light. Based on this, by adding phosphors using the three primary color principle, light of any color can be emitted. The characteristics of LED lighting devices include: high efficiency, low power consumption, long durability, and environmental friendliness. They are used in home, office, automotive lighting, signal indication, decorative advertising, and medical fields.

[0004] The publication number "CN118257995B" describes "a convenient and adjustable eye-protecting LED lighting device, including a mounting component, a dimming component, and a lighting component. The present invention has a mounting component, in which a lighting component is installed. The front end of the mounting component is covered by a dimming component. The lighting component can provide illumination and can be adjusted vertically within the mounting component. With the help of a baffle inside the dimming component, four-color dimming can be achieved, making it convenient to adjust the eye-protecting light according to the actual situation. The lighting component can be adjusted at an angle with the mounting component. The lighting component is detachable for easy independent use. The overall operation is convenient and easy to adjust, allowing users to quickly get started."

[0005] The aforementioned patent describes a lighting component housed within an installation assembly, with a dimming component covering the front of the assembly. The lighting component provides illumination and can be adjusted vertically within the installation assembly. Combined with a baffle inside the dimming component, it allows for four-color dimming, facilitating easy adjustment of the eye-protecting light according to actual conditions. Furthermore, the lighting component's angle is adjustable along with the installation assembly, and it is detachable for independent use. Overall, the operation is convenient and easy to adjust, allowing users to quickly learn and use it. Existing LED lighting devices cannot reduce the power consumption of the LED lighting device while maintaining constant brightness within the illumination range, thus failing to achieve energy conservation and environmental protection. Therefore, we propose an easily adjustable LED lighting device and its usage method. Summary of the Invention

[0006] The purpose of this invention is to provide an easily adjustable LED lighting device and its usage method. The device uses multiple LED strips for illumination, and while reducing the illumination range, it sequentially turns off multiple LED strips and simultaneously reduces the current input to the remaining LED strips. This ensures that the current of each LED strip is the same as before the illumination range was reduced, so that the brightness of the illumination within the remaining LED strips is the same as before the reduction. This allows the LED lighting device to reduce the current input to multiple LED strips while reducing the illumination range, maintaining the same brightness within the reduced illumination range as before, and simultaneously reducing the power consumption of the LED lighting device, achieving energy saving and environmental protection.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An easily adjustable LED lighting device includes a fixed housing;

[0009] A fluorescent lamp shade is fixedly connected to the inner walls of a fixed housing. An arc-shaped lamp holder is fixedly connected to the inner walls of the fluorescent lamp shade. Multiple sets of parallel LED strips are embedded in the lamp groove of the arc-shaped lamp holder, and the contact points at both ends of the multiple sets of LED strips extend to the two sides of the LED strips.

[0010] The lamp holder includes two support rings located between the inner walls of the fluorescent lamp cover and on both sides of the curved lamp frame. Each support ring has a contraction groove at its side end, and two annular electrical contacts are movably inserted between the inner walls of each contraction groove. These annular electrical contacts correspond to the contacts at both ends of multiple LED light strips.

[0011] An adjustment mechanism is disposed between the inner walls of the fixed housing and is connected to two annular electrical contacts for deflecting the two annular electrical contacts.

[0012] In a preferred embodiment of the present invention, the adjustment mechanism includes a driving component, a limiting component, a guiding component, and an elastic component. The driving component is disposed at one side of the fixed housing and is connected to two support rings. The limiting component is disposed at the other side of the fixed housing and is connected to the driving component. The guiding component is disposed between the inner walls of the fixed housing and is connected to the two support rings. Two sets of elastic components are disposed between the inner walls of the fluorescent lamp cover, and each set of elastic components is connected to two annular electrical contacts.

[0013] In a preferred embodiment of the present invention, the driving assembly includes a hollow rotating cylinder, a gear cover, a driven gear, a driving gear, and a stepper motor. The hollow rotating cylinder is rotatably connected to the inner wall of the fluorescent lamp cover. Both ends of the hollow rotating cylinder extend to the two side ends of the fixed housing, and the hollow rotating cylinder is fixedly connected to two support rings. The gear cover wraps around one extended end of the hollow rotating cylinder and is fixedly connected to one side end of the fixed housing. The driven gear is fixedly connected to the other extended end of the hollow rotating cylinder and is located between the inner walls of the gear cover. The stepper motor is fixedly connected to the side end of the gear cover, and the output end of the stepper motor extends to the inner wall of the gear cover. The driving gear is fixedly connected to the output end of the stepper motor and is located between the inner walls of the gear cover, and the driving gear meshes with the driven gear.

[0014] In a preferred embodiment of the present invention, the limiting assembly includes a ratchet cover, a ratchet, a pawl, and an electric push rod. The ratchet cover is sleeved on one extension end of the hollow rotating cylinder and is fixedly connected to the other side end of the fixed housing. The ratchet is fixedly connected to one extension end of the hollow rotating cylinder and is located between the inner walls of the ratchet cover. The pawl is rotatably connected to the inner wall of the ratchet cover and engages with the ratchet. The electric push rod is fixedly connected to the side end of the ratchet cover, and the output end of the electric push rod extends to the inner wall of the ratchet cover and is rotatably connected to the pawl.

[0015] In a preferred embodiment of the present invention, the guiding component includes an arc-shaped limiting groove, a limiting slider, and a connecting block. Two limiting sliders are provided, and the two limiting sliders are fixedly connected to the inner wall of the fixed housing and located on both sides of the fluorescent lamp cover. Two arc-shaped limiting grooves are provided, and the two arc-shaped limiting grooves slide between the inner walls of the two limiting sliders. Two connecting blocks are provided, and both connecting blocks are connected to two support rings.

[0016] As a preferred embodiment of the present invention, each set of elastic components includes a compression sleeve and a spring. The compression sleeve is sleeved on the circumferential surface of the hollow rotating cylinder and is connected to an annular electrical contact. The spring is inserted between the hollow rotating cylinder and the compression sleeve.

[0017] In a preferred embodiment of the present invention, a running terminal is fixedly connected to the inner wall of the fixed housing. The running terminal is electrically connected to two annular electrical contacts via wires. An arc-shaped resistor block is fixedly connected to the side end of the ratchet, and the arc-shaped resistor block is located between the inner walls of the ratchet cover. A telescopic contact is fixedly connected to the side end of the ratchet cover. The output end of the telescopic contact extends to the inner walls of the ratchet cover, and the output end of the telescopic contact is elastically fitted with the arc-shaped resistor block. An insulated wire is fixedly connected to one end of the arc-shaped resistor block. One end of the insulated wire passes through the ratchet, and the extended end of the insulated wire is connected to the running terminal.

[0018] As a preferred embodiment of the present invention, an arc-shaped sleeve plate is fixedly connected between the two support rings. The arc-shaped sleeve plate partially wraps around the outer surface of the arc-shaped lamp holder, and a reflector is fixedly connected to one end of the arc-shaped sleeve plate. The reflector is located in the lamp groove of the arc-shaped lamp holder. A light-shielding sleeve is fixedly connected between the two ratchet covers, and the light-shielding sleeve wraps around the arc-shaped outer surface of the fluorescent lamp cover.

[0019] As a preferred embodiment of the present invention, a transparent lampshade is provided on the side end of the fixed housing, and multiple slots are provided on the inner wall of the fixed housing. Multiple clips are engaged in the multiple slots, and the multiple clips are all connected to the transparent lampshade.

[0020] A method for using an easily adjustable LED lighting device includes the following steps:

[0021] S1. Installation:

[0022] Press the top and bottom sides of the transparent lampshade to pull out multiple clips from multiple slots, attach the fixing housing to the wall, and fix the fixing housing to the wall with multiple bolts. Then, fix the transparent lampshade to the side of the fixing housing by engaging multiple clips with multiple slots, thus realizing the installation of the LED lighting device.

[0023] S2. Reduce the lighting range:

[0024] The output end of the electric push rod retracts, pulling the pawl to deflect, causing the pawl to disengage from the ratchet. Then, the stepper motor is powered on and started. The output end of the stepper motor drives the drive gear to rotate. The drive gear, through meshing with the driven gear, drives the driven gear to rotate. The driven gear drives the fluorescent lamp cover to rotate. The fluorescent lamp cover drives the two support rings to deflect. The two support rings drive the arc-shaped sleeve, the light-shielding sleeve, and the two annular electrical contacts to deflect. The two annular electrical contacts, through deflection, misalign with multiple sets of LED light strips, causing the multiple sets of LED light strips to turn off one by one from top to bottom. At the same time, the arc-shaped sleeve, through deflection, blocks the multiple sets of LED light strips one by one from top to bottom, thus reducing the lighting range of the LED lighting device by reducing the number of lit LED light strips.

[0025] S3, Range Lock:

[0026] During the process of narrowing the lighting range, the hollow rotating drum drives the ratchet to rotate synchronously. When the lighting range is narrowed to the required lighting angle, the electric push rod is powered on and started. The output end of the electric push rod extends and pushes the pawl to deflect. The pawl engages with the ratchet to limit the deflection of the hollow rotating drum, and then locks the deflection of the arc-shaped sleeve and the two annular electrical contacts, thereby locking the lighting range of the LED lighting device.

[0027] S4, Constant brightness:

[0028] During the process of narrowing the lighting range, the ratchet synchronously drives the arc-shaped resistor block. The arc-shaped resistor block changes its contact position with the telescopic contact by deflection, gradually increasing the length of the current passing through the arc-shaped resistor block, thereby increasing the resistance. Under constant input voltage, the current detector in the operating terminal detects the decrease in current in real time by connecting in series with the arc-shaped resistor block, telescopic contact, and insulated wire. This controls the reduction of the current input to multiple LED light strips, so that the input current matches the remaining lit LED light strips, thereby keeping the brightness of the remaining multiple LED light strips unchanged. This achieves the goal of narrowing the lighting range of the LED lighting device while keeping the lighting brightness of the LED lighting device constant.

[0029] When expanding the lighting range, the ratchet drives the arc-shaped resistor block to gradually reset, causing the current detected in the operating terminal to increase. The operating terminal increases the current input to multiple LED light strips to maintain the brightness of the multiple LED light strips. At the same time, the output of the stepper motor drives the drive gear to rotate in the opposite direction. The drive gear, through meshing with the driven gear, drives the driven gear to rotate in the opposite direction, causing the fluorescent lamp cover to reset. The fluorescent lamp cover drives the two support rings, two annular electrical contacts, and two ratchet covers to deflect and reset, thereby causing multiple LED light strips to light up one by one from bottom to top. Thus, the LED lighting device expands the lighting range while maintaining constant lighting brightness.

[0030] S5. Save electricity:

[0031] As the lighting range shrinks, the input current decreases synchronously, maintaining lighting brightness while reducing power consumption, thus saving electricity for LED lighting devices.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] 1. In this solution, the output end of the electric push rod retracts, pulling the pawl to deflect, causing the pawl to disengage from the ratchet. Then, power is applied to start the stepper motor. The output end of the stepper motor drives the drive gear to rotate. The drive gear, through meshing with the driven gear, drives the driven gear to rotate. The driven gear drives the fluorescent lamp cover to rotate, causing the two support rings to deflect. The two support rings then deflect the arc-shaped sleeve, the light-shielding sleeve, and the two annular electrical contacts. The two annular electrical contacts, through deflection, misalign with multiple LED light strips, causing the multiple LED light strips to turn off one by one from top to bottom. Simultaneously, the arc-shaped sleeve, through deflection, successively blocks the closing of multiple LED light strips from top to bottom. By reducing the number of lit LED light strips, the illumination of the LEDs is improved. The lighting device reduces the illumination range, while a ratchet synchronously drives an arc-shaped resistor block. The arc-shaped resistor block changes its contact position with the telescopic contact by deflection, gradually increasing or decreasing the length of current passing through the arc-shaped resistor block. The current detector in the operating terminal detects in real time through series the amount of current required for the remaining LED light strips to light up, and then controls the amount of current input to the multiple LED light strips, so that the input current matches the remaining lit LED light strips, thereby maintaining the brightness of the remaining multiple LED light strips. This achieves the goal of reducing the illumination range of the LED lighting device while keeping the illumination brightness constant. During the process of reducing the illumination range, the input current is reduced synchronously, achieving the goal of maintaining illumination brightness while reducing power consumption, thus saving electricity for the LED lighting device.

[0034] 2. In this solution, the arc-shaped resistor block is made of nickel-chromium alloy, which is stable. The output end of the telescopic contact is fixed with an elastic contact, which is a metal sheet made of copper alloy. The output end of the telescopic contact pushes the elastic contact to contact the arc-shaped resistor block. The telescopic contact and the operating terminal are connected in series by wires. Insulated wires are used to connect the operating terminal and the arc-shaped resistor block in series. The operating terminal, insulated wires, arc-shaped resistor block, and telescopic contact are connected in series. When the hollow rotating drum deflects, it drives the arc-shaped resistor block to deflect, changing the contact point between the telescopic contact and the arc-shaped resistor block. By monitoring the increase or decrease of the resistance value of the current flowing through the arc-shaped resistor block in real time, the total amount of electricity that needs to be provided to light up multiple groups of LED light strips is detected in real time. According to actual needs, the current passing through each LED light strip is kept constant, ensuring that the lighting brightness of the LED lighting device is constant.

[0035] 3. In this solution, the compression sleeve is used to accommodate the spring, the spring is used to compress and push the compression sleeve, and the compression sleeve is used to push the annular electrical contact close to the multiple LED light strips, thereby avoiding wear between the annular electrical contact and the multiple LED light strip contacts, ensuring that the annular electrical contact can contact the multiple LED light strip contacts, avoiding poor contact between the annular electrical contact and the multiple LED light strip contacts, and thus extending the service life of the LED lighting device.

[0036] 4. In this solution, when the lighting range needs to be changed, the output end of the electric push rod retracts, pulling the pawl away from the ratchet, releasing the arc-shaped sleeve and the two annular electrical contacts from deflection lock. This allows the hollow rotating drum to drive the arc-shaped sleeve and the two annular electrical contacts to deflect coaxially with the hollow rotating drum within the arc-shaped lamp holder, enabling the arc-shaped sleeve and the two annular electrical contacts to adapt to the needs of different lighting ranges. When it is necessary to lock the lighting range, the arc-shaped sleeve and the annular electrical contacts deflect to the required angle, the electric push rod is energized and started, and the output end of the electric push rod extends to push the pawl to engage and lock with the ratchet. This keeps the arc-shaped sleeve and the two annular electrical contacts at their deflection angle, making the lighting range of the LED lighting device adjustable to meet the actual lighting range needs. Attached Figure Description

[0037] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0038] Figure 1 This is a first-view perspective view of an easily adjustable LED lighting device according to the present invention.

[0039] Figure 2 This is a disassembly diagram of the lampshade of an easily adjustable LED lighting device according to the present invention;

[0040] Figure 3 This is a first full sectional view of an easily adjustable LED lighting device according to the present invention;

[0041] Figure 4 This is a second full sectional view of an easily adjustable LED lighting device according to the present invention;

[0042] Figure 5 This is a third full sectional view of an easily adjustable LED lighting device according to the present invention;

[0043] Figure 6 This invention provides an easily adjustable LED lighting device. Figure 5 Enlarged view of point A;

[0044] Figure 7 This is a disassembly diagram of the adjustment mechanism of an easily adjustable LED lighting device according to the present invention;

[0045] Figure 8 This is a half-sectional view of the adjustment mechanism of an easily adjustable LED lighting device according to the present invention;

[0046] Figure 9 This is a half-sectional view of the limiting component of an easily adjustable LED lighting device according to the present invention;

[0047] Figure 10This is a partially exploded first-view perspective view of the adjustment mechanism of an easily adjustable LED lighting device according to the present invention;

[0048] Figure 11 This is a partially exploded second-view view of the adjustment mechanism of an easily adjustable LED lighting device according to the present invention;

[0049] Figure 12 This is an exploded view of the adjustment mechanism of an easily adjustable LED lighting device according to the present invention.

[0050] In the diagram: 1. Fixed housing; 2. Transparent lampshade; 3. Fluorescent lampshade; 4. Hollow rotating cylinder; 5. Arc-shaped lamp holder; 6. LED light strip; 7. Support ring; 8. Arc-shaped sleeve; 9. Light-shielding sleeve; 10. Running terminal; 11. Annular electrical contact; 12. Shrinkage groove; 13. Extrusion sleeve; 14. Spring; 15. Arc-shaped limiting groove; 16. Limiting slider; 17. Adapter block; 18. Insulated wire; 19. Ratchet cover; 20. Telescopic contact; 21. Ratchet; 22. Arc-shaped resistor block; 23. Pawl; 24. Electric push rod; 25. Gear cover; 26. Driven gear; 27. Driving gear; 28. Stepper motor; 29. ​​Slot; 30. Locking strip. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] Example 1

[0053] Reference Figure 1 - Figure 11 An easily adjustable LED lighting device, comprising:

[0054] Fixed housing 1;

[0055] Fluorescent lamp cover 3 is fixedly connected to the inner wall of the fixed housing 1. An arc-shaped lamp holder 5 is fixedly connected to the inner wall of the fluorescent lamp cover 3. Multiple sets of parallel LED light strips 6 are embedded and fixed in the lamp groove of the arc-shaped lamp holder 5, and the contact points at both ends of the multiple sets of LED light strips 6 extend to the two side ends of the LED light strips 6.

[0056] Support rings 7, two of them are provided, located between the inner walls of the fluorescent lamp cover 3 and on both sides of the arc-shaped lamp holder 5. Each support ring 7 has a contraction groove 12 at its side end, and two annular electrical contacts 11 are movably inserted between the inner walls of each contraction groove 12. Each annular electrical contact 11 corresponds to the contacts at both ends of multiple LED light strips 6; and

[0057] An adjustment mechanism is disposed between the inner walls of the fixed housing 1 and is connected to two annular electrical contacts 11 for deflecting the two annular electrical contacts 11.

[0058] In this invention, the fixed housing 1 is fixedly connected to the wall by bolts. The fluorescent lamp cover 3 is used to accommodate the arc-shaped lamp holder 5, the arc-shaped sleeve 8, the two support rings 7, the two annular electrical contacts 11, and the hollow rotating cylinder 4. At the same time, the fluorescent lamp cover 3 is used to enhance the brightness of the light source. The arc-shaped lamp holder 5 is used to support and fix multiple sets of LED light strips 6, which serve as the light source. The two support rings 7 are used to support and fix the arc-shaped sleeve 8, the light-shielding sleeve 9, the two adapter blocks 17, and the two limiting sliders 16. The two shrinkage grooves 12 are used to accommodate the two annular electrical contacts 11. The two annular electrical contacts 11 are connected to the contacts at both ends of the multiple sets of LED light strips 6 by offset connection, so as to supply power to some or all of the LED light strips 6, thereby making some or all of the LED light strips 6 light up, that is, to provide brightness for the corresponding lighting range. The adjustment mechanism is connected to the two annular electrical contacts 11 to deflect the two annular electrical contacts 11.

[0059] The adjustment mechanism includes a drive assembly, a limiting assembly, a guide assembly, and an elastic assembly. The drive assembly is located at one side of the fixed housing 1 and is connected to two support rings 7. The limiting assembly is located at the other side of the fixed housing 1 and is connected to the drive assembly. The guide assembly is located between the inner walls of the fixed housing 1 and is connected to the two support rings 7. Two sets of elastic assemblies are provided, located between the inner walls of the fluorescent lamp cover 3, and both sets of elastic assemblies are connected to two annular electrical contacts 11.

[0060] In this invention, the driving component provides power for the deflection of the arc-shaped sleeve 8, the light-shielding sleeve 9, the arc-shaped resistor block 22, and the two annular electrical contacts 11; the limiting component locks the deflection of the arc-shaped sleeve 8, the light-shielding sleeve 9, the arc-shaped resistor block 22, and the two annular electrical contacts 11; the guiding component limits the maximum and minimum deflection angles of the arc-shaped sleeve 8, the light-shielding sleeve 9, the arc-shaped resistor block 22, and the two annular electrical contacts 11; and two sets of elastic components push the two annular electrical contacts 11 to contact the two end contacts of the multiple sets of LED light strips 6.

[0061] The drive assembly includes a hollow rotating cylinder 4, a gear cover 25, a driven gear 26, a driving gear 27, and a stepper motor 28. The hollow rotating cylinder 4 is rotatably connected to the inner wall of the fluorescent lamp cover 3. Both ends of the hollow rotating cylinder 4 extend to the two side ends of the fixed housing 1, and the hollow rotating cylinder 4 is fixedly connected to two support rings 7. The gear cover 25 wraps around one extended end of the hollow rotating cylinder 4 and is fixedly connected to one side end of the fixed housing 1. The driven gear 26 is fixedly connected to the other extended end of the hollow rotating cylinder 4 and is located between the inner walls of the gear cover 25. The stepper motor 28 is fixedly connected to the side end of the gear cover 25, and the output end of the stepper motor 28 extends to the inner wall of the gear cover 25. The driving gear 27 is fixedly connected to the output end of the stepper motor 28 and is located between the inner walls of the gear cover 25. The driving gear 27 meshes with the driven gear 26.

[0062] In this invention, the hollow rotating cylinder 4 supports and fixes the two support rings 7, and simultaneously drives the two support rings 7 to deflect, thereby enabling the arc-shaped sleeve 8 to wrap around the arc-shaped lamp holder 5. The gear cover 25 accommodates the driven gear 26 and the driving gear 27. The driven gear 26 drives the hollow rotating cylinder 4 to rotate synchronously. The stepper motor 28 drives the driving gear 27 to rotate. The driving gear 27 drives the driven gear 26 to rotate through meshing with it. During the deflection of the arc-shaped sleeve 8, the light-shielding sleeve 9, the arc-shaped resistor block 22, and the two annular electrical contacts 11, the stepper motor 28 is energized and started. The output end of the stepper motor 28 drives the driving gear 27 to rotate. The driven gear 27 meshes with the driven gear 26, causing the driven gear 26 to rotate. The driven gear 26 then rotates the hollow cylinder 4, which in turn rotates the two support rings 7. Simultaneously, the two support rings 7 deflect the arc-shaped sleeve 8 and the two annular electrical contacts 11, causing the arc-shaped sleeve 8 to deflect coaxially with the hollow cylinder 4. The arc-shaped sleeve 8 then deflects and wraps around the arc-shaped lamp holder 5. At the same time, the two annular electrical contacts 11 deflect coaxially with the hollow cylinder 4. By deflecting, the two annular electrical contacts 11 change the number of contacts with the two ends of the multiple LED light strips 6, thereby changing the number of LED light strips 6 that are lit, so as to maintain the brightness within the lighting range when the lighting range expands or shrinks.

[0063] The limiting assembly includes a ratchet cover 19, a ratchet 21, a pawl 23, and an electric push rod 24. The ratchet cover 19 is sleeved on one extension end of the hollow rotating cylinder 4 and is fixedly connected to the other side end of the fixed housing 1. The ratchet 21 is fixedly connected to one extension end of the hollow rotating cylinder 4 and is located between the inner walls of the ratchet cover 19. The pawl 23 is rotatably connected to the inner wall of the ratchet cover 19 and engages with the ratchet 21. The electric push rod 24 is fixedly connected to the side end of the ratchet cover 19. The output end of the electric push rod 24 extends to the inner wall of the ratchet cover 19 and is rotatably connected to the pawl 23.

[0064] In this invention, the ratchet cover 19 is used to house the ratchet 21, the pawl 23, and the arc-shaped resistor block 22. The ratchet 21 is used to support and fix the arc-shaped resistor block 22 and the insulated wire 18. The pawl 23 locks the hollow rotating cylinder 4 by engaging with the ratchet 21. The electric push rod 24 is used to push and pull the pawl 23 closer to or further away from the ratchet 21. During the deflection of the arc-shaped sleeve 8 and the two annular electrical contacts 11, when the required lighting range changes, the output end of the electric push rod 24 retracts, pulling the pawl 23 away from the ratchet 21, releasing the deflection lock of the arc-shaped sleeve 8 and the two annular electrical contacts 11, thus allowing the hollow... The rotating drum 4 can drive the arc-shaped sleeve plate 8 and the two annular electrical contacts 11 to deflect coaxially with the hollow rotating drum 4 within the arc-shaped lamp holder 5, so that the arc-shaped sleeve plate 8 and the two annular electrical contacts 11 can adapt to the needs of different lighting ranges. When it is necessary to lock the lighting range, the arc-shaped sleeve plate 8 and the annular electrical contacts 11 deflect to the required angle, the electric push rod 24 is energized and started, the output end of the electric push rod 24 extends and pushes the pawl 23 to engage and lock with the ratchet 21, thereby keeping the arc-shaped sleeve plate 8 and the two annular electrical contacts 11 at the deflection angle, so that the lighting range of the LED lighting device can be adjusted to fit the actual lighting range needs.

[0065] The guiding assembly includes an arc-shaped limiting groove 15, a limiting slider 16, and a connecting block 17. There are two limiting sliders 16, which are fixedly connected to the inner wall of the fixed housing 1 and located on both sides of the fluorescent lamp cover 3. There are two arc-shaped limiting grooves 15, which slide between the inner walls of the two limiting sliders 16. There are two connecting blocks 17, which are connected to two support rings 7.

[0066] In this invention, two limiting sliders 16 are used to accommodate the sliding of two arc-shaped limiting grooves 15. The two arc-shaped limiting grooves 15 limit the deflection angle of the arc-shaped sleeve 8, the annular electrical contact 11, and the light-shielding sleeve 9 by sliding with the two limiting sliders 16, limiting the angle range from the maximum deflection angle to the minimum deflection angle. Two adapter blocks 17 are used to support and fix the two arc-shaped limiting grooves 15. When the arc-shaped sleeve 8 and the two annular electrical contacts 11 are deflected, the two limiting sliders 16 limit the deflection angle range of the arc-shaped sleeve 8 and the two annular electrical contacts 11 by sliding with the two arc-shaped limiting grooves 15, thereby preventing the arc-shaped sleeve 8 and the two annular electrical contacts 11 from deflecting beyond the deflection angle and causing collision damage.

[0067] Each set of elastic components includes a compression sleeve 13 and a spring 14. The compression sleeve 13 is sleeved on the circumferential surface of the hollow rotating cylinder 4 and is connected to the annular electrical contact 11. The spring 14 is inserted between the hollow rotating cylinder 4 and the compression sleeve 13.

[0068] In this invention, in each set of elastic components, the compression sleeve 13 is used to accommodate the spring 14, the spring 14 is used to compress and push the compression sleeve 13, and the compression sleeve 13 is used to push the annular electrical contact 11 close to the multiple sets of LED light strips 6, thereby avoiding wear between the annular electrical contact 11 and the contacts of the multiple sets of LED light strips 6, ensuring that the annular electrical contact 11 can contact the contacts of the multiple sets of LED light strips 6, avoiding poor contact between the annular electrical contact 11 and the contacts of the multiple sets of LED light strips 6, thereby extending the service life of the LED lighting device.

[0069] An operating terminal 10 is fixedly connected to the inner wall of the fixed housing 1. The operating terminal 10 is electrically connected to two annular electrical contacts 11 via wires. An arc-shaped resistor block 22 is fixedly connected to the side end of the ratchet 21, and the arc-shaped resistor block 22 is located between the inner walls of the ratchet cover 19. A telescopic contact 20 is fixedly connected to the side end of the ratchet cover 19. The output end of the telescopic contact 20 extends to the inner walls of the ratchet cover 19, and the output end of the telescopic contact 20 is elastically fitted with the arc-shaped resistor block 22. An insulated wire 18 is fixedly connected to one end of the arc-shaped resistor block 22. One end of the insulated wire 18 passes through the ratchet 21, and the extended end of the insulated wire 18 is connected to the operating terminal 10.

[0070] In this invention, the operating terminal 10 is existing technology, ordered from the market based on actual demand. The arc-shaped resistor block 22 is made of nickel-chromium alloy, which is stable. The output end of the telescopic contact 20 is fixed with an elastic contact, which is a metal sheet made of copper alloy. The output end of the telescopic contact 20 pushes the elastic contact to contact the arc-shaped resistor block 22. The telescopic contact 20 and the operating terminal 10 are connected in series by a wire. The insulated wire 18 is used to connect the operating terminal 10 and the arc-shaped resistor block 22 in series. The operating terminal 10, the insulated wire 18, the arc-shaped resistor block 22, and the telescopic contact 20 are connected in series. When the hollow rotating drum 4 deflects, it drives the arc-shaped resistor block 22 to deflect, changing the contact point between the telescopic contact 20 and the arc-shaped resistor block 22. By utilizing the increase or decrease of the resistance value of the current flowing through the arc-shaped resistor block 22, the total amount of electricity that needs to be provided to light up multiple groups of LED light strips 6 is detected in real time. According to actual needs, the current passing through each LED light strip 6 is kept constant, ensuring that the lighting brightness of the LED lighting device's lighting range is constant.

[0071] An arc-shaped sleeve plate 8 is fixedly connected between the two support rings 7. The arc-shaped sleeve plate 8 partially wraps around the outer surface of the arc-shaped lamp holder 5, and a reflector is fixedly connected to one end of the arc-shaped sleeve plate 8. The reflector is located in the lamp groove of the arc-shaped lamp holder 5. A light-shielding sleeve 9 is fixedly connected between the two ratchet covers 19, and the light-shielding sleeve 9 wraps around the arc-shaped outer surface of the fluorescent lamp cover 3.

[0072] In this invention, the arc-shaped sleeve 8 is used to support and fix the reflector. By using the deflection of the reflector, the maximum angle of the illumination range is limited, thereby limiting the illumination range of the remaining multiple sets of LED light strips 6. The light-shielding sleeve 9 is used to block part of the light to avoid light scattering and waste.

[0073] A transparent lampshade 2 is provided on the side of the fixed housing 1. Multiple slots 29 are provided on the inner wall of the fixed housing 1. Multiple clips 30 are engaged in the multiple slots 29, and the multiple clips 30 are all connected to the transparent lampshade 2.

[0074] In this invention, the transparent lampshade 2 is used to seal and fix the housing 1, and the multiple slots 29 are used to accommodate multiple clips 30. The multiple clips 30 fix the transparent lampshade 2 by engaging with the multiple slots 29.

[0075] A method for using an easily adjustable LED lighting device includes the following steps:

[0076] S1. Installation:

[0077] Press the upper and lower sides of the transparent lampshade 2 to pull out multiple clips 30 from multiple slots 29, and attach the fixed housing 1 to the wall. Fix the fixed housing 1 to the wall with multiple bolts. Then, fix the transparent lampshade 2 to the side of the fixed housing 1 by engaging multiple clips 30 with multiple slots 29, thereby realizing the installation of the LED lighting device.

[0078] S2. Reduce the lighting range:

[0079] The output end of the electric push rod 24 retracts, pulling the pawl 23 to deflect, causing the pawl 23 to disengage from the ratchet 21. Then, the stepper motor 28 is powered on and started. The output end of the stepper motor 28 drives the drive gear 27 to rotate. The drive gear 27 meshes with the driven gear 26, causing the driven gear 26 to rotate. The driven gear 26 drives the fluorescent lamp cover 3 to rotate. The fluorescent lamp cover 3 drives the two support rings 7 to deflect. The two support rings 7 drive the arc-shaped sleeve 8, the light-shielding sleeve 9, and the two annular electrical contacts 11 to deflect. The two annular electrical contacts 11 are misaligned with the multiple LED light strips 6 through deflection, so that the multiple LED light strips 6 are turned off one by one from top to bottom. At the same time, the arc-shaped sleeve 8 blocks the multiple LED light strips 6 one by one from top to bottom after they are turned off. By reducing the number of lit LED light strips 6, the illumination range of the LED lighting device is reduced.

[0080] S3, Range Lock:

[0081] During the process of narrowing the lighting range, the hollow rotating drum 4 drives the ratchet 21 to rotate synchronously. When the lighting range is narrowed to the required lighting angle, the electric push rod 24 is energized and started. The output end of the electric push rod 24 extends and pushes the pawl 23 to deflect. The pawl 23 restricts the deflection of the hollow rotating drum 4 by engaging with the ratchet 21, and then locks the deflection of the arc-shaped sleeve plate 8 and the two annular electrical contacts 11, thereby locking the lighting range of the LED lighting device.

[0082] S4, Constant brightness:

[0083] During the process of narrowing the lighting range, the ratchet 21 synchronously drives the arc-shaped resistor block 22. The arc-shaped resistor block 22 changes the contact position with the telescopic contact 20 by deflection, gradually increasing the length of the current passing through the arc-shaped resistor block 22, thereby increasing the resistance. Under constant input voltage, the current detector in the operating terminal 10 detects the decrease in current in real time by being connected in series with the arc-shaped resistor block 22, the telescopic contact 20, and the insulated wire 18. This controls the current input to the multiple LED light strips 6 to decrease, so that the input current matches the remaining lit LED light strips 6, thereby keeping the brightness of the remaining multiple LED light strips 6 unchanged. This achieves the goal of narrowing the lighting range of the LED lighting device while keeping the lighting brightness of the LED lighting device constant.

[0084] When the lighting range is expanded, the ratchet 21 drives the arc-shaped resistor block 22 to gradually reset, so that the current detected in the current detection in the running terminal 10 increases. The running terminal 10 increases the current input to the multiple sets of LED light strips 6 to maintain the brightness of the multiple sets of LED light strips 6. At the same time, the output end of the stepper motor 28 drives the drive gear 27 to rotate in the opposite direction. The drive gear 27 drives the driven gear 26 to rotate in the opposite direction through meshing with the driven gear 26, so that the fluorescent lamp cover 3 is reset. The fluorescent lamp cover 3 drives the two support rings 7, the two annular electrical contacts 11, and the two ratchet covers 19 to deflect and reset, so that the multiple sets of LED light strips 6 light up one by one from bottom to top, thereby realizing that the LED lighting device expands the lighting range while the lighting brightness of the LED lighting device remains constant.

[0085] S5. Save electricity:

[0086] As the lighting range shrinks, the input current decreases synchronously, maintaining lighting brightness while reducing power consumption, thus saving electricity for LED lighting devices.

[0087] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An easily adjustable LED lighting device, characterized in that, include; Fixed housing (1); Fluorescent lamp cover (3), the fluorescent lamp cover (3) is fixedly connected to the inner wall of the fixed housing (1), and an arc lamp holder (5) is fixedly connected between the inner walls of the fluorescent lamp cover (3). Multiple sets of parallel LED light strips (6) are embedded and fixed in the lamp groove of the arc lamp holder (5), and the two end contacts of the multiple sets of LED light strips (6) extend to the two side ends of the LED light strips (6). Support rings (7), two support rings (7) are provided, the two support rings (7) are located between the inner walls of the fluorescent lamp cover (3), and the two support rings (7) are located on both sides of the arc-shaped lamp holder (5). The side ends of the two support rings (7) are provided with shrinkage grooves (12), and two annular electrical contacts (11) are movably inserted between the inner walls of the two shrinkage grooves (12). The two annular electrical contacts (11) correspond to the contacts at both ends of the multiple sets of LED light strips (6); and An adjustment mechanism is disposed between the inner walls of the fixed housing (1) and is connected to two annular electrical contacts (11) for deflecting the two annular electrical contacts (11); The adjustment mechanism includes a drive component and a limiting component. The drive component is located at one side of the fixed housing (1) and is connected to two support rings (7). The limiting component is located at the other side of the fixed housing (1) and is connected to the drive component. The drive assembly includes a hollow rotating cylinder (4), which is rotatably connected to the inner wall of the fluorescent lamp cover (3). The two ends of the hollow rotating cylinder (4) extend to the two side ends of the fixed housing (1), and the hollow rotating cylinder (4) is fixedly connected to two support rings (7). The limiting assembly includes a ratchet cover (19) and a ratchet (21). The ratchet cover (19) is sleeved on one extension end of the hollow rotating cylinder (4) and is fixedly connected to the other side end of the fixed housing (1). The ratchet (21) is fixedly connected to one extension end of the hollow rotating cylinder (4) and is located between the inner walls of the ratchet cover (19). An operating terminal (10) is fixedly connected to the inner wall of the fixed housing (1). The operating terminal (10) and two annular electrical contacts (11) are electrically connected by wires. An arc-shaped resistor block (22) is fixedly connected to the side end of the ratchet (21), and the arc-shaped resistor block (22) is located between the inner walls of the ratchet cover (19). A telescopic contact (20) is fixedly connected to the side end of the ratchet cover (19). The output end of the telescopic contact (20) extends to the inner walls of the ratchet cover (19), and the output end of the telescopic contact (20) is elastically fitted with the arc-shaped resistor block (22). An insulated wire (18) is fixedly connected to one end of the arc-shaped resistor block (22). One end of the insulated wire (18) passes through the ratchet (21), and the extended end of the insulated wire (18) is connected to the operating terminal (10). An arc-shaped sleeve plate (8) is fixedly connected between the two support rings (7), and the arc-shaped sleeve plate (8) partially wraps around the outer surface of the arc-shaped lamp holder (5).

2. The easily adjustable LED lighting device according to claim 1, characterized in that, The adjustment mechanism also includes a guide component and an elastic component. The guide component is disposed between the inner walls of the fixed housing (1) and is connected to two support rings (7). There are two sets of elastic components, which are disposed between the inner walls of the fluorescent lamp cover (3) and are connected to two annular electrical contacts (11).

3. The easily adjustable LED lighting device according to claim 2, characterized in that, The drive assembly also includes a gear cover (25), a driven gear (26), a driving gear (27), and a stepper motor (28). The gear cover (25) is wrapped around one extension of the hollow rotating cylinder (4) and is fixedly connected to one side of the fixed housing (1). The driven gear (26) is fixedly connected to the other extension of the hollow rotating cylinder (4) and is located between the inner walls of the gear cover (25). The stepper motor (28) is fixedly connected to the side of the gear cover (25) and its output end extends to the inner walls of the gear cover (25). The driving gear (27) is fixedly connected to the output end of the stepper motor (28) and is located between the inner walls of the gear cover (25). The driving gear (27) meshes with the driven gear (26).

4. The easily adjustable LED lighting device according to claim 3, characterized in that, The limiting assembly also includes a pawl (23) and an electric push rod (24). The pawl (23) is rotatably connected to the inner wall of the ratchet cover (19) and engages with the ratchet (21). The electric push rod (24) is fixedly connected to the side of the ratchet cover (19). The output end of the electric push rod (24) extends to the inner wall of the ratchet cover (19) and is rotatably connected to the pawl (23).

5. The easily adjustable LED lighting device according to claim 4, characterized in that, The guiding component includes an arc-shaped limiting groove (15), a limiting slider (16), and a transition block (17). There are two limiting sliders (16), which are fixedly connected to the inner wall of the fixed housing (1) and located on both sides of the fluorescent lamp cover (3). There are two arc-shaped limiting grooves (15), which slide between the inner walls of the two limiting sliders (16). There are two transition blocks (17), which are connected to two support rings (7).

6. The easily adjustable LED lighting device according to claim 5, characterized in that, Each set of elastic components includes a compression sleeve (13) and a spring (14). The compression sleeve (13) is fitted onto the circumferential surface of the hollow rotating cylinder (4). The compression sleeve (13) is connected to an annular electrical contact (11). The spring (14) is inserted between the hollow rotating cylinder (4) and the compression sleeve (13).

7. The easily adjustable LED lighting device according to claim 6, characterized in that, One end of the arc-shaped sleeve (8) is fixedly connected to a reflector, and the reflector is located in the lamp slot of the arc-shaped lamp holder (5). A light-shielding sleeve (9) is fixedly connected between the two ratchet covers (19), and the light-shielding sleeve (9) is wrapped around the arc-shaped outer surface of the fluorescent lamp cover (3).

8. The easily adjustable LED lighting device according to claim 7, characterized in that, The fixed housing (1) is provided with a transparent lampshade (2) on its side end. Multiple slots (29) are provided on the inner wall of the fixed housing (1). Multiple clips (30) are engaged in the multiple slots (29). All of the multiple clips (30) are connected to the transparent lampshade (2).

9. A method of using an easily adjustable LED lighting device, characterized in that, The application of the easily adjustable LED lighting device as described in claim 8 includes the following steps: S1. Installation: Press the upper and lower sides of the transparent lampshade (2) to pull out multiple clips (30) from multiple slots (29), and attach the fixed housing (1) to the wall. Fix the fixed housing (1) to the wall with multiple bolts, and then fix the transparent lampshade (2) to the side of the fixed housing (1) by multiple clips (30) and multiple slots (29) to realize the installation of the LED lighting device. S2. Reduce the lighting range: The output end of the electric push rod (24) retracts, pulling the pawl (23) to deflect, causing the pawl (23) to disengage from the ratchet (21). Then, the stepper motor (28) is powered on and started. The output end of the stepper motor (28) drives the drive gear (27) to rotate. The drive gear (27) drives the driven gear (26) to rotate through meshing with the driven gear (26). The driven gear (26) drives the fluorescent lamp cover (3) to rotate. The fluorescent lamp cover (3) drives the two support rings (7) to rotate. The two support rings (7) deflect the arc-shaped sleeve (8), the light-shielding sleeve (9) and the two annular electrical contacts (11) to deflect. The two annular electrical contacts (11) are misaligned with the multiple LED light strips (6) by deflection, so that the multiple LED light strips (6) are turned off one by one from top to bottom. At the same time, the arc-shaped sleeve (8) blocks the multiple LED light strips (6) from top to bottom one by one after they are turned off by deflection. By reducing the lighting of the multiple LED light strips (6), the lighting range of the LED lighting device is reduced. S3, Range Lock: During the process of narrowing the lighting range, the hollow rotating drum (4) drives the ratchet (21) to rotate synchronously. When the lighting range is narrowed to the required lighting angle, the electric push rod (24) is powered on and started. The output end of the electric push rod (24) extends and pushes the pawl (23) to deflect. The pawl (23) restricts the deflection of the hollow rotating drum (4) by engaging with the ratchet (21), and then locks the deflection of the arc-shaped sleeve plate (8) and the two annular electric contacts (11) to lock the lighting range of the LED lighting device. S4, Constant brightness: During the process of narrowing the lighting range, the ratchet (21) drives the arc-shaped resistor block (22) in sync. The arc-shaped resistor block (22) changes the contact position with the telescopic contact (20) by deflection, gradually increasing the length of the current passing through the arc-shaped resistor block (22), thereby increasing the resistance. Under constant input voltage, the current detector in the operating terminal (10) detects the decrease of current in real time by connecting in series with the arc-shaped resistor block (22), the telescopic contact (20), and the insulated wire (18), thereby controlling the current input to the multiple LED light strips (6) to decrease, so that the input current matches the remaining lit LED light strips (6), thereby keeping the brightness of the remaining multiple LED light strips (6) unchanged, so that the LED lighting device narrows the lighting range while the LED lighting device maintains constant lighting brightness. When the lighting range is expanded, the ratchet (21) drives the arc-shaped resistor block (22) to gradually reset, so that the current detected in the running terminal (10) increases, the running terminal (10) increases the current input to multiple LED light strips (6) to maintain the brightness of multiple LED light strips (6), and at the same time, the output end of the stepper motor (28) drives the active gear (27) to rotate in the opposite direction. The active gear (27) drives the driven gear (26) to rotate in the opposite direction through meshing with the driven gear (26), so that the fluorescent lamp cover (3) is reset. The fluorescent lamp cover (3) drives the two support rings (7), the two annular electrical contacts (11), and the two ratchet covers (19) to deflect and reset, so that multiple LED light strips (6) light up one by one from bottom to top, thereby realizing that the LED lighting device expands the lighting range while the lighting brightness of the LED lighting device remains constant. S5. Save electricity: As the lighting range shrinks, the input current decreases synchronously, maintaining lighting brightness while reducing power consumption, thus saving electricity for LED lighting devices.

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