LED lighting device convenient to adjust and using method thereof

Abstract

The invention provides an LED lighting device convenient to adjust and a using method of the LED lighting device convenient to adjust, and belongs to the technical field of LED lighting devices. The fluorescent lamp cover is fixedly connected between the inner walls of the fixed shell, an arc-shaped lamp bracket is fixedly connected between the inner walls of the fluorescent lamp cover, a plurality of groups of parallel LED lamp strips are embedded and fixed in a lamp groove of the arc-shaped lamp bracket, and a current detector in the operation terminal detects the magnitude of current required for lighting the rest of the plurality of groups of LED lamp strips in real time through series connection. The current input to the multiple groups of LED light bars is further controlled, so that the input current is matched with the remaining turned-on LED light bars, the brightness of the remaining multiple groups of LED light bars is kept unchanged, the illumination brightness of the LED illumination device is constant while the illumination range of the LED illumination device is narrowed, the input current is synchronously reduced in the process of narrowing the illumination range, and the brightness of the LED illumination device is kept constant. The lighting brightness is maintained, the electricity consumption is reduced, and the LED lighting device saves electricity.

Description

Technical Field

[0001] The present invention belongs to the technical field of LED lighting devices, and particularly relates to an LED lighting device that is convenient to adjust and its usage method. Background Art

[0002] A lighting device refers to a device that can emit light and provide lighting for a specific area or object. According to different usage scenarios and functions, lighting devices can be divided into various types, such as outdoor lighting lamps (including lawn lamps, road lamps, garden lamps, high mast lamps, wall lamps, underwater lamps, etc.), indoor lighting lamps (including wall lamps, etc.), light guide lighting systems, and intelligent lighting systems, etc.

[0003] An LED lighting device, that is, a light-emitting diode lighting device, is a lighting device that uses solid-state semiconductor materials to generate light. The LED lighting device uses a solid semiconductor chip as the light-emitting material. In the semiconductor, carriers recombine to release excess energy, causing photon emission, directly emitting red, yellow, blue, and green light. On this basis, using the principle of three primary colors and adding phosphor, any color of light can be emitted. The characteristics of the LED lighting device include: high efficiency, low power consumption, long durability, and environmental protection, and it is applied to fields such as home, office, automotive lighting, signal indication, decorative advertising, and medical treatment, etc.

[0004] The authorized publication number "CN118257995B" records "a convenient adjustable eye-protecting LED lighting device, including an installation component, a dimming component, and a lighting component. In the present invention, the installation component is installed, and the lighting component is arranged inside the installation component, while the front end of the installation component is covered by the dimming component. The lighting component can provide lighting and can be adjusted up and down inside the installation component. Cooperating with the baffle inside the dimming component, four-color dimming can be performed, which is convenient to adjust the eye-protecting light according to the actual situation. And the lighting component is adjusted in angle along with the installation component, and the lighting component is detachable, which is convenient for independent use. The overall operation is convenient and easy to adjust, facilitating the user to quickly get started and use".

[0005] In the above patent, the lighting component is arranged inside the installation component, while the front end of the installation component is covered by the dimming component. The lighting component can provide lighting and can be adjusted up and down inside the installation component. Cooperating with the baffle inside the dimming component, four-color dimming can be performed, which is convenient to adjust the eye-protecting light according to the actual situation. And the lighting component is adjusted in angle along with the installation component, and the lighting component is detachable, which is convenient for independent use. The overall operation is convenient and easy to adjust, facilitating the user to quickly get started and use. For existing LED lighting devices, it is impossible to reduce the power consumption of the LED lighting device during lighting use while reducing the lighting range under the premise of keeping the lighting brightness unchanged within the lighting range, achieving the ability of energy conservation and environmental protection. For this reason, we propose an LED lighting device that is convenient to adjust and its usage method. Summary of the Invention

[0006] The object of the present invention is to provide an easily adjustable LED lighting device and its usage method. The aim is to perform lighting through multiple groups of LED light strips. While narrowing the lighting range, each group of LED light strips is turned off one by one, and at the same time, the current input to the remaining LED light strips is reduced to ensure that the current of each LED light strip is the same as that before the lighting range is narrowed. As a result, the lighting brightness within the lighting range generated by the remaining LED light strips is the same as that before the lighting range is narrowed. Subsequently, when the LED lighting device narrows the lighting range, the current input to multiple groups of LED light strips is reduced to maintain the lighting brightness within the narrowed lighting range the same as the lighting brightness before the lighting range is narrowed. At the same time, the power consumption of the LED lighting device during lighting is reduced, achieving the ability of energy conservation and environmental protection.

[0007] To achieve the above object, the present invention provides the following technical solutions: An easily adjustable LED lighting device, including a fixed housing; A fluorescent lamp shade, which is fixedly connected between the inner walls of the fixed housing. An arc-shaped lamp holder is fixedly connected between the inner walls of the fluorescent lamp shade. Multiple groups of parallel LED light strips are fixedly embedded in the lamp slots of the arc-shaped lamp holder, and the two end contacts of multiple groups of the LED light strips extend to the two side ends of the LED light strips; Support rings, there are two support rings. The two support rings are located between the inner walls of the fluorescent lamp shade, and the two support rings are located on both sides of the arc-shaped lamp holder. Shrinkage grooves are provided at the side ends of the two support rings. Two annular electrical contacts are movably inserted between the inner walls of the two shrinkage grooves, and the two annular electrical contacts correspond to the two end contacts of multiple groups of LED light strips; and An adjustment mechanism, which is arranged between the inner walls of the fixed housing, and the adjustment mechanism is connected to the two annular electrical contacts to deflect the two annular electrical contacts.

[0008] As a preferred solution 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 arranged at one side end of the fixed housing, the driving component is connected to the two support rings, the limiting component is arranged at the other side end of the fixed housing, the limiting component is connected to the driving component, the guiding component is arranged between the inner walls of the fixed housing, the guiding component is connected to the two support rings, and there are two groups of elastic components. The two groups of elastic components are arranged between the inner walls of the fluorescent lamp shade, and both groups of elastic components are connected to the two annular electrical contacts.

[0009] As 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 stepping motor. The hollow rotating cylinder is rotatably connected between the inner walls 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 the 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 one extended end of the hollow rotating cylinder and is located between the inner walls of the gear cover. The stepping motor is fixedly connected to the side end of the gear cover, and the output end of the stepping motor extends between the inner walls of the gear cover. The driving gear is fixedly connected to the output end of the stepping motor, is located between the inner walls of the gear cover, and meshes with the driven gear.

[0010] As 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 the other extended 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 the other extended 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. The output end of the electric push rod extends into the inner wall of the ratchet cover, and the output end of the electric push rod is rotatably connected to the pawl.

[0011] As a preferred embodiment of the present invention, the guiding assembly includes arc-shaped limiting grooves, limiting sliders, and adapter blocks. There are two limiting sliders, and the two limiting sliders are fixedly connected to the inner wall of the fixed housing and are located on both sides of the fluorescent lamp cover. There are two arc-shaped limiting grooves, and the two arc-shaped limiting grooves slide between the inner walls of the two limiting sliders. There are two adapter blocks, and both of the two adapter blocks are connected to the two support rings.

[0012] As a preferred embodiment of the present invention, each set of the elastic components includes a pressing sleeve and a spring. The pressing sleeve is sleeved on the circumferential surface of the hollow rotating cylinder. The pressing sleeve is connected to the annular electric contact. The spring is inserted between the hollow rotating cylinder and the pressing sleeve.

[0013] As a preferred embodiment of the present invention, an operating terminal is fixedly connected to the inner wall of the fixed housing. The operating terminal is electrically connected to both annular electrical contacts through 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 between the inner walls of the ratchet cover, and the output end of the telescopic contact is elastically attached to the arc-shaped resistor block. One end of the arc-shaped resistor block is fixedly connected to an insulating wire. One end of the insulating wire penetrates through the ratchet, and the extended end of the insulating wire is connected to the operating terminal.

[0014] 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 semi-wraps the outer surface of the arc-shaped lamp holder, and a reflecting mirror is fixedly connected to one end of the arc-shaped sleeve plate. The reflecting mirror is located in the lamp slot of the arc-shaped lamp holder. A light-shielding sleeve is fixedly connected between the two ratchet covers, and the light-shielding sleeve wraps the arc-shaped outer surface of the fluorescent lamp cover.

[0015] As a preferred embodiment of the present invention, a transparent lamp cover is provided at the side end of the fixed housing. A plurality of card slots are formed in the inner wall of the fixed housing. A plurality of card strips are clamped in the plurality of card slots, and all the card strips are connected to the transparent lamp cover.

[0016] A usage method of an LED lighting device convenient for adjustment includes the following steps: S1. Installation: Press the upper and lower sides of the transparent lamp cover so that a plurality of card strips are pulled out from the plurality of card slots. Fit the fixed housing to the wall surface, and fix the fixed housing to the wall surface through a plurality of bolts. Then, fix the transparent lamp cover to the side end of the fixed housing by engaging the plurality of card strips with the plurality of card slots, thereby realizing the installation of the LED lighting device. S2. Narrow the lighting range: The output end of the electric push rod contracts to pull the pawl to deflect, so that the pawl is disengaged from the ratchet. Then, the stepping motor is powered on and started. The output end of the stepping motor drives the driving gear to rotate. The driving gear drives the driven gear to rotate through meshing with the driven gear. 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 plate, the light-shielding sleeve and the two annular electrical contacts to deflect. The two annular electrical contacts are misaligned with a plurality of LED light strips through deflection, so that multiple groups of LED light strips are turned off one by one from top to bottom. At the same time, the arc-shaped sleeve plate blocks multiple groups of LED light strips that are turned off one by one from top to bottom through deflection. By reducing the number of lit LED light strips in multiple groups, the lighting range of the LED lighting device is narrowed. S3. Range locking: During the process of narrowing the lighting range, the hollow rotating cylinder 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 to push the pawl to deflect. The pawl restricts the deflection of the hollow rotating cylinder by engaging with the ratchet, and then locks the deflection of the arc-shaped sleeve plate and the two annular electrical contacts, realizing the locking of the lighting range of the LED lighting device; S4. Constant brightness: During the process of narrowing the lighting range, the ratchet drives the arc-shaped resistor block synchronously. The arc-shaped resistor block changes the contact position with the telescopic contact by deflecting, gradually increasing the length of the current passing through the arc-shaped resistor block, and then increasing the resistance. Under the condition of a constant input voltage, the current detector in the operation terminal detects the decrease in current in real time by being connected in series with the arc-shaped resistor block, the telescopic contact, and the insulated wire, and then controls the current input to multiple groups of LED light strips to decrease, so that the input current matches the remaining lit LED light strips, and then keeps the brightness of the remaining multiple groups of LED light strips unchanged, realizing the constant lighting brightness of the LED lighting device while narrowing the lighting range; When expanding the lighting range, the ratchet drives the arc-shaped resistor block to gradually reset, so that the current detected by the current detector in the operation terminal increases. The operation terminal increases the current input to multiple groups of LED light strips to keep the brightness of multiple groups of LED light strips. At the same time, the output end of the stepping motor drives the driving gear to rotate in the reverse direction. The driving gear drives the driven gear to rotate in the reverse direction by meshing with the driven gear, so that the fluorescent lamp cover resets. The fluorescent lamp cover drives the two support rings and the two annular electrical contacts, and the two ratchet covers are deflected and reset, and then multiple groups of LED light strips are lit one by one from bottom to top, and then realizing the constant lighting brightness of the LED lighting device while expanding the lighting range; S5. Power saving: During the process of narrowing the lighting range, the input current decreases synchronously, achieving the reduction of power consumption while maintaining the lighting brightness, and realizing the power saving of the LED lighting device.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. In this solution, when the output end of the electric push rod contracts, it pulls the pawl to deflect, causing the pawl to release its engagement with the ratchet. Then, the stepping motor is powered on and started. The output end of the stepping motor drives the driving gear to rotate. The driving gear drives the driven gear to rotate through meshing with the driven gear. 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 plate, the light-shielding sleeve, and the two annular electrical contacts to deflect. The two annular electrical contacts are misaligned with multiple LED light bars through deflection, causing multiple groups of LED light bars to be turned off one by one from top to bottom. At the same time, the arc-shaped sleeve plate blocks multiple groups of LED light bars that have been turned off one by one from top to bottom through deflection. By reducing the number of lit LED light bars in multiple groups, the lighting range of the LED lighting device is reduced. At the same time, the ratchet synchronously drives the arc-shaped resistance block. The arc-shaped resistance block changes the contact position with the telescopic contact through deflection, gradually increasing or decreasing the length of the current passing through the arc-shaped resistance block. The current detector in the operation terminal detects in real time the amount of current required for the remaining multiple groups of LED light bars to light up through series connection, and then controls the magnitude of the current input to the multiple groups of LED light bars, making the input current match the remaining lit LED light bars, thereby keeping the brightness of the remaining multiple groups of LED light bars unchanged. While reducing the lighting range of the LED lighting device, the lighting brightness of the LED lighting device remains constant. During the process of reducing the lighting range, the input current decreases synchronously, achieving the reduction of power consumption while maintaining the lighting brightness, and realizing the power saving of the LED lighting device.

[0018] 2. In this solution, the arc-shaped resistance block is made of nickel-chromium alloy, with stable properties. An elastic contact is fixed at the output end of the telescopic contact. Here, the elastic contact is a metal sheet made of copper alloy. The output end of the telescopic contact pushes the elastic contact to contact the arc-shaped resistance block. The telescopic contact and the operation terminal are connected in series through a wire. An insulating wire is used for series connection between the operation terminal and the arc-shaped resistance block. The operation terminal, the insulating wire, the arc-shaped resistance block, and the telescopic contact are connected in series. When the hollow rotating cylinder deflects, it drives the arc-shaped resistance block to deflect, changing the contact point between the telescopic contact and the arc-shaped resistance block. By real-time monitoring of the increase and decrease of the current resistance value flowing through the arc-shaped resistance block, the total amount of electricity required to light up multiple groups of LED light bars is detected in real time. According to actual needs, the current passing through each LED light bar is kept constant, ensuring the constant lighting brightness of the lighting range of the LED lighting device.

[0019] 3. In this solution, the extrusion sleeve is used to accommodate the spring. The spring is used to extrude and push the extrusion sleeve. The extrusion sleeve is used to push the annular electrical contact close to multiple groups of LED light bars, thereby avoiding the wear of the contacts between the annular electrical contact and multiple groups of LED light bars, ensuring that the annular electrical contact can contact the contacts of multiple groups of LED light bars, and avoiding poor contact between the annular electrical contact and the contacts of multiple groups of LED light bars, thereby extending the service life of the LED lighting device.

[0020] 4. In this solution, when the lighting range needs to be changed, the output end of the electric push rod contracts to pull the pawl away from the ratchet wheel, releasing the deflection and locking of the arc-shaped sleeve plate and the two annular electrical contacts, so that the hollow rotating cylinder can drive the arc-shaped sleeve plate and the two annular electrical contacts to deflect coaxially with the hollow rotating cylinder within the arc-shaped lamp holder, enabling the arc-shaped sleeve plate 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 plate and the annular electrical contacts are deflected to the required angle, the electric push rod is powered on and started, and the output end of the electric push rod extends to push the pawl to engage and lock with the ratchet wheel, thereby enabling the arc-shaped sleeve plate and the two annular electrical contacts to maintain the deflection angle, making the lighting range of the LED lighting device adjustable and meeting the actual lighting range requirements. Description of the Drawings

[0021] The drawings are used to provide a further understanding of the present invention and form a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is the first perspective stereogram of an LED lighting device that is easy to adjust according to the present invention; Figure 2 is the lamp shade disassembly drawing of an LED lighting device that is easy to adjust according to the present invention; Figure 3 is the first full sectional view of an LED lighting device that is easy to adjust according to the present invention; Figure 4 is the second full sectional view of an LED lighting device that is easy to adjust according to the present invention; Figure 5 is the third full sectional view of an LED lighting device that is easy to adjust according to the present invention; Figure 6 is an LED lighting device that is easy to adjust according to the present invention Figure 5 Enlarged view of part A; Figure 7 is the disassembly drawing of the adjustment mechanism of an LED lighting device that is easy to adjust according to the present invention; Figure 8 is the half sectional view of the adjustment mechanism of an LED lighting device that is easy to adjust according to the present invention; Figure 9 is the half sectional view of the limit component of an LED lighting device that is easy to adjust according to the present invention; Figure 10 is the first perspective view of the partial explosion of the adjustment mechanism of an LED lighting device that is easy to adjust according to the present invention; Figure 11 is the second perspective view of the partial explosion of the adjustment mechanism of an LED lighting device that is easy to adjust according to the present invention; Figure 12 is the explosion drawing of the adjustment mechanism of an LED lighting device that is easy to adjust according to the present invention.

[0022] In the figure: 1, fixed housing; 2, transparent lamp cover; 3, fluorescent lamp cover; 4, hollow rotating cylinder; 5, arc lamp holder; 6, LED light strip; 7, support ring; 8, arc sleeve plate; 9, light-shielding sleeve; 10, operation terminal; 11, annular electrical contact; 12, contraction groove; 13, extrusion sleeve; 14, spring; 15, arc limit groove; 16, limit slider; 17, adapter block; 18, insulated wire; 19, ratchet cover; 20, telescopic contact; 21, ratchet; 22, arc resistance block; 23, pawl; 24, electric push rod; 25, gear cover; 26, driven gear; 27, driving gear; 28, stepper motor; 29, card slot; 30, card strip. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment 1 Referring to Figure 1 - Figure 11 , an LED lighting device convenient for adjustment, comprising: Fixed housing 1; Fluorescent lamp cover 3, the fluorescent lamp cover 3 is fixedly connected between the inner walls of the fixed housing 1, an arc lamp holder 5 is fixedly connected between the inner walls of the fluorescent lamp cover 3, and multiple groups of parallel LED light strips 6 are fixedly embedded in the lamp slots of the arc lamp holder 5, and the two ends of the multiple groups of LED light strips 6 extend to the two side ends of the LED light strip 6; Support rings 7, there are two support rings 7, 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 lamp holder 5, contraction grooves 12 are opened at the side ends of the two support rings 7, and two annular electrical contacts 11 are movably inserted between the inner walls of the two contraction grooves 12, and the two annular electrical contacts 11 correspond to the two ends of the multiple groups of LED light strips 6; and Adjusting mechanism, the adjusting mechanism is arranged between the inner walls of the fixed housing 1, and the adjusting mechanism is connected to the two annular electrical contacts 11 for deflecting the two annular electrical contacts 11.

[0025] In the present invention, the fixed housing 1 is fixedly connected to the wall surface by bolts. The fluorescent lamp cover 3 is used to accommodate the arc lamp holder 5, the arc sleeve plate 8, two support rings 7, 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 light source brightness. The arc lamp holder 5 is used to support and fix multiple groups of LED light strips 6. The multiple groups of LED light strips 6 are used as the light source. The two support rings 7 are used to support and fix the arc sleeve plate 8, the light-shielding sleeve 9, two adapter blocks 17 and two limit 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 in a misaligned manner with the contacts at both ends of the multiple groups of LED light strips 6 to supply power to some or all of the LED light strips 6 in the multiple groups of LED light strips 6, thereby realizing the lighting of some or all of the LED light strips 6, that is, providing brightness for the corresponding lighting range. The adjustment mechanism is connected to the two annular electrical contacts 11 and is used to deflect the two annular electrical contacts 11.

[0026] The adjustment mechanism includes a driving component, a limiting component, a guiding component and an elastic component. The driving component is arranged at one side end of the fixed housing 1. The driving component is connected to the two support rings 7. The limiting component is arranged at the other side end of the fixed housing 1. The limiting component is connected to the driving component. The guiding component is arranged between the inner walls of the fixed housing 1. The guiding component is connected to the two support rings 7. Two groups of elastic components are provided. The two groups of elastic components are arranged between the inner walls of the fluorescent lamp cover 3. Both groups of elastic components are connected to the two annular electrical contacts 11.

[0027] In the present invention, the driving component is used to provide power for the deflection of the arc sleeve plate 8, the light-shielding sleeve 9, the arc resistance block 22 and the two annular electrical contacts 11. The limiting component is used to lock the deflection of the arc sleeve plate 8, the light-shielding sleeve 9, the arc resistance block 22 and the two annular electrical contacts 11. The guiding component is used to limit the maximum and minimum deflection angles of the arc sleeve plate 8, the light-shielding sleeve 9, the arc resistance block 22 and the two annular electrical contacts 11. The two groups of elastic components are used to push the two annular electrical contacts 11 into contact with the contacts at both ends of the multiple groups of LED light strips 6.

[0028] The driving assembly includes a hollow rotating cylinder 4, a gear cover 25, a driven gear 26, a driving gear 27, and a stepping motor 28. The hollow rotating cylinder 4 is rotatably connected between the inner walls 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 the two support rings 7. The gear cover 25 wraps around one extended end of the hollow rotating cylinder 4, and the gear cover 25 is fixedly connected to one side end of the fixed housing 1. The driven gear 26 is fixedly connected to one extended end of the hollow rotating cylinder 4, and the driven gear 26 is located between the inner walls of the gear cover 25. The stepping motor 28 is fixedly connected to the side end of the gear cover 25, and the output end of the stepping motor 28 extends to between the inner walls of the gear cover 25. The driving gear 27 is fixedly connected to the output end of the stepping motor 28. The driving gear 27 is located between the inner walls of the gear cover 25, and the driving gear 27 meshes with the driven gear 26.

[0029] In the present invention, the hollow rotating cylinder 4 is used to support and fix the two support rings 7. At the same time, the hollow rotating cylinder 4 is used to drive the two support rings 7 to deflect, thereby realizing the wrapping of the arc-shaped sleeve plate 8 around the arc-shaped lamp holder 5. The gear cover 25 is used to accommodate the driven gear 26 and the driving gear 27. The driven gear 26 is used to drive the hollow rotating cylinder 4 to rotate synchronously. The stepping motor 28 is used to drive the driving gear 27 to rotate. The driving gear 27 drives the driven gear 26 to rotate through meshing with the driven gear 26. During the deflection process of the arc-shaped sleeve plate 8, the light-shielding sleeve 9, the arc-shaped resistance block 22, and the two annular electrical contacts 11, the stepping motor 28 is powered on and started. The output end of the stepping motor 28 drives the driving gear 27 to rotate. The driving gear 27 drives the driven gear 26 to rotate through meshing with the driven gear 26. The driven gear 26 drives the hollow rotating cylinder 4 to rotate. The hollow rotating cylinder 4 drives the two support rings 7 to rotate. The two support rings 7 simultaneously drive the arc-shaped sleeve plate 8 and the two annular electrical contacts 11 to deflect, so that the arc-shaped sleeve plate 8 deflects coaxially with the hollow rotating cylinder 4. The arc-shaped sleeve plate 8 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 rotating cylinder 4. The two annular electrical contacts 11 change the number of contacts with the contacts at both ends of the multiple groups of LED light bars 6 through deflection, thereby changing the number of the multiple groups of LED light bars 6 that are lit, so as to keep the brightness within the lighting range unchanged when the lighting range is enlarged or reduced.

[0030] The limiting component includes a ratchet cover 19, a ratchet wheel 21, a pawl 23 and an electric push rod 24. The ratchet cover 19 is sleeved on the other extended end of the hollow rotating cylinder 4, and the ratchet cover 19 is fixedly connected to the other side end of the fixed housing 1. The ratchet wheel 21 is fixedly connected to the other extended end of the hollow rotating cylinder 4, and the ratchet wheel 21 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 the pawl 23 is engaged with the ratchet wheel 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 the output end of the electric push rod 24 is rotatably connected to the pawl 23.

[0031] In the present invention, the ratchet cover 19 is used to accommodate the ratchet wheel 21, the pawl 23 and the arc-shaped resistance block 22. The ratchet wheel 21 is used to support and fix the arc-shaped resistance block 22 and the insulating wire 18. The pawl 23 locks the deflection of the hollow rotating cylinder 4 by engaging with the ratchet wheel 21. The electric push rod 24 is used to push and pull the pawl 23 to be close to or away from the ratchet wheel 21. During the deflection of the arc-shaped sleeve plate 8 and the two annular electrical contacts 11, when the lighting range needs to be changed, the output end of the electric push rod 24 contracts to pull the pawl 23 away from the ratchet wheel 21, releasing the locking of the deflection of the arc-shaped sleeve plate 8 and the two annular electrical contacts 11, so that the hollow rotating cylinder 4 can drive the arc-shaped sleeve plate 8 and the two annular electrical contacts 11 to deflect coaxially with the hollow rotating cylinder 4 within the arc-shaped lamp holder 5, so that the arc-shaped sleeve plate 8 and the two annular electrical contacts 11 can meet the needs of different lighting ranges. When the lighting range needs to be locked, the arc-shaped sleeve plate 8 and the annular electrical contacts 11 are deflected to the required angle, and the electric push rod 24 is powered on and started. The output end of the electric push rod 24 extends to push the pawl 23 to engage and lock with the ratchet wheel 21, and then the arc-shaped sleeve plate 8 and the two annular electrical contacts 11 are kept at the deflected angle, so that the lighting range of the LED lighting device can be adjusted to meet the actual lighting range requirements.

[0032] The guiding component includes arc-shaped limiting grooves 15, limiting sliders 16 and adapter blocks 17. There are two limiting sliders 16, and the two limiting sliders 16 are fixedly connected to the inner wall of the fixed housing 1, and the two limiting sliders 16 are located on both sides of the fluorescent lamp cover 3. There are two arc-shaped limiting grooves 15, and the two arc-shaped limiting grooves 15 slide between the inner walls of the two limiting sliders 16. There are two adapter blocks 17, and the two adapter blocks 17 are both connected to the two support rings 7.

[0033] In the present 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 plate 8, the annular electrical contact 11 and the light-shielding sleeve 9 through sliding cooperation with the two limiting sliders 16 within an angular 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 deflecting the arc-shaped sleeve plate 8 and the two annular electrical contacts 11, the two limiting sliders 16 limit the deflection angle range of the arc-shaped sleeve plate 8 and the two annular electrical contacts 11 through sliding cooperation with the two arc-shaped limiting grooves 15, thereby preventing the arc-shaped sleeve plate 8 and the two annular electrical contacts 11 from deflecting beyond the deflection angle and causing collision damage.

[0034] 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. The compression sleeve 13 is connected to the annular electrical contact 11. The spring 14 is inserted between the hollow rotating cylinder 4 and the compression sleeve 13.

[0035] In the present invention, in each set of elastic components, the compression sleeve 13 is used to accommodate the spring 14, the spring 14 is used to squeeze and push the compression sleeve 13, and the compression sleeve 13 is used to push the annular electrical contact 11 closer to the multiple groups of LED light bars 6, thereby preventing wear of the contacts between the annular electrical contact 11 and the multiple groups of LED light bars 6, ensuring that the annular electrical contact 11 can contact the contacts of the multiple groups of LED light bars 6, avoiding poor contact between the annular electrical contact 11 and the contacts of the multiple groups of LED light bars 6, and thus extending the service life of the LED lighting device.

[0036] A running terminal 10 is fixedly connected to the inner wall of the fixed housing 1. The running terminal 10 and the two annular electrical contacts 11 are both electrically connected by wires. A side end of the ratchet wheel 21 is fixedly connected to an arc-shaped resistance block 22, and the arc-shaped resistance block 22 is located between the inner walls of the ratchet wheel cover 19. A side end of the ratchet wheel cover 19 is fixedly connected to a telescopic contact 20. The output end of the telescopic contact 20 extends to between the inner walls of the ratchet wheel cover 19, and the output end of the telescopic contact 20 is elastically attached to the arc-shaped resistance block 22. One end of the arc-shaped resistance block 22 is fixedly connected to an insulating wire 18. One end of the insulating wire 18 penetrates through the ratchet wheel 21, and the extending end of the insulating wire 18 is connected to the running terminal 10.

[0037] In the present invention, the operating terminal 10 is a prior art device, which is ordered according to the actual demand market. The arc-shaped resistance block 22 is made of nickel-chromium alloy and has stable properties. An elastic contact is fixed at the output end of the telescopic contact 20. Here, the elastic contact is a metal sheet made of copper alloy. The output end of the telescopic contact 20 pushes the elastic contact to contact with the arc-shaped resistance block 22. The telescopic contact 20 and the operating terminal 10 are connected in series through a wire. The insulating wire 18 is used for connecting the operating terminal 10 and the arc-shaped resistance block 22 in series. The operating terminal 10, the insulating wire 18, the arc-shaped resistance block 22, and the telescopic contact 20 are connected in series. When the hollow rotating cylinder 4 deflects, it drives the arc-shaped resistance block 22 to deflect, changing the contact point between the telescopic contact 20 and the arc-shaped resistance block 22. By using the increase or decrease of the current resistance value flowing through the arc-shaped resistance block 22, the total amount of electricity required 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 made constant, ensuring the constant illumination brightness of the illumination range of the LED lighting device.

[0038] An arc-shaped sleeve plate 8 is fixedly connected between two support rings 7. The arc-shaped sleeve plate 8 semi-wraps the outer surface of the arc-shaped lamp holder 5, and one end of the arc-shaped sleeve plate 8 is fixedly connected with 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 two ratchet covers 19, and the light-shielding sleeve 9 wraps the arc-shaped outer surface of the fluorescent lamp cover 3.

[0039] In the present invention, the arc-shaped sleeve plate 8 is used to support and fix the reflector. By using the deflection of the reflector, the maximum included angle of the illumination range is limited, and then the illumination ranges of the remaining multiple groups of LED light strips 6 are limited. The light-shielding sleeve 9 is used to block part of the light to avoid the scattering and waste of light.

[0040] A transparent lamp cover 2 is provided at the side end of the fixed housing 1. A plurality of card slots 29 are opened on the inner wall of the fixed housing 1. A plurality of card strips 30 are clamped in the plurality of card slots 29, and the plurality of card strips 30 are all connected to the transparent lamp cover 2.

[0041] In the present invention, the transparent lamp cover 2 is used to seal the fixed housing 1. The plurality of card slots 29 are used to accommodate the plurality of card strips 30. The plurality of card strips 30 fix the transparent lamp cover 2 by being clamped with the plurality of card slots 29.

[0042] A usage method of an LED lighting device that is easy to adjust includes the following steps: S1. Installation: Press the upper and lower sides of the transparent lamp cover 2 to make the plurality of card strips 30 be pulled out from the plurality of card slots 29. Fit the fixed housing 1 to the wall surface, and fix the fixed housing 1 to the wall surface through a plurality of bolts. Then, fix the transparent lamp cover 2 to the side end of the fixed housing 1 by engaging the plurality of card strips 30 with the plurality of card slots 29 to complete the installation of the LED lighting device; S2. Narrow the illumination range: The output end of the electric push rod 24 contracts and pulls the pawl 23 to deflect, so that the pawl 23 releases the engagement with the ratchet wheel 21. Then, the stepping motor 28 is powered on and started. The output end of the stepping motor 28 drives the driving gear 27 to rotate. The driving gear 27 drives the driven gear 26 to rotate through the engagement 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 deflect. The two support rings 7 drive the arc-shaped sleeve plate 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 multiple groups of LED light strips 6 are turned off one by one from top to bottom. At the same time, the arc-shaped sleeve plate 8 blocks the multiple groups of LED light strips 6 that have been turned off one by one from top to bottom. By reducing the number of lit LED light strips 6, the lighting range of the LED lighting device is reduced; S3. Range locking: During the process of reducing the lighting range, the hollow rotating cylinder 4 drives the ratchet wheel 21 to rotate synchronously. When the lighting range is reduced 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 cylinder 4 through engagement with the ratchet wheel 21, and then locks the deflection of the arc-shaped sleeve plate 8 and the two annular electrical contacts 11, realizing the locking of the lighting range of the LED lighting device; S4. Brightness constancy: During the process of reducing the lighting range, the ratchet wheel 21 drives the arc-shaped resistor block 22 synchronously. The arc-shaped resistor block 22 changes the contact position of the contact with the telescopic contact 20 through deflection, gradually increasing the length of the current passing through the arc-shaped resistor block 22, and then increasing the resistance. Under the condition of constant input voltage, the current detector in the operation terminal 10 detects the decrease of the current in real time through being connected in series with the arc-shaped resistor block 22, the telescopic contact 20 and the insulated wire 18, and then 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, and then keeps the brightness of the remaining multiple groups of LED light strips 6 unchanged, realizing the constancy of the lighting brightness of the LED lighting device while reducing the lighting range of the LED lighting device; When expanding the lighting range, the ratchet wheel 21 drives the arc-shaped resistor block 22 to gradually reset, so that the current detected by the current detector in the operation terminal 10 increases. The operation terminal 10 increases the current input to the multiple LED light strips 6 to keep the brightness of the multiple LED light strips 6. At the same time, the output end of the stepping motor 28 drives the driving gear 27 to rotate in the reverse direction. The driving gear 27 drives the driven gear 26 to rotate in the reverse direction through the engagement 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, and then makes multiple groups of LED light strips 6 light up one by one from bottom to top, and then realizes the constancy of the lighting brightness of the LED lighting device while expanding the lighting range of the LED lighting device; S5. Power saving: During the process of reducing the lighting range, the input current is synchronously reduced to achieve the reduction of power consumption while maintaining the lighting brightness, thus realizing power saving of the LED lighting device.

[0043] Finally, it should be noted that the above are only the 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 perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An LED lighting device that is easy to adjust, characterized in that: include; A fixed housing (1); A fluorescent lampshade (3), the fluorescent lampshade (3) being fixedly connected between the inner walls of the fixed housing (1), an arc-shaped lamp holder (5) being fixedly connected between the inner walls of the fluorescent lampshade (3), a plurality of groups of parallel LED light strips (6) being embedded and fixed in the light groove of the arc-shaped lamp holder (5), and the contacts at both ends of the plurality of groups of LED light strips (6) extending to the two side ends of the LED light strips (6); A support ring (7), wherein two support rings (7) are provided, the two support rings (7) are located between the inner walls of the fluorescent lampshade (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 a contraction groove (12), and two annular electrical contacts (11) are movably inserted between the inner walls of the two contraction grooves (12), and the two annular electrical contacts (11) correspond to the contacts at both ends of the plurality of groups of LED light strips (6); and An adjustment mechanism is provided between inner walls of the fixed housing (1), and the adjustment mechanism is connected to the two annular electrical contacts (11) to deflect the two annular electrical contacts (11).

2. The easily adjustable LED lighting device according to claim 1, characterized in that: The regulating mechanism comprises a driving component, a limiting component, a guiding component and an elastic component. The driving component is arranged at one side end of the fixed shell (1), and the driving component is connected to two supporting rings (7). The limiting component is arranged at the other side end of the fixed shell (1), and the limiting component is connected to the driving component. The guiding component is arranged between the inner walls of the fixed shell (1), and the guiding component is connected to the two supporting rings (7). Two groups of elastic components are arranged, and the two groups of elastic components are arranged between the inner walls of the fluorescent lamp cover (3). Both groups of elastic components are connected to two annular electrical contacts (11).

3. The easily adjustable LED lighting device according to claim 2, characterized in that: The driving assembly comprises a hollow rotating drum (4), a gear cover (25), a driven gear (26), a driving gear (27) and a stepping motor (28); the hollow rotating drum (4) is rotatably connected between the inner walls of the fluorescent lamp cover (3); two ends of the hollow rotating drum (4) extend to two side ends of the fixed shell (1); the hollow rotating drum (4) is fixedly connected to two supporting rings (7); the gear cover (25) is wrapped around an extended end of the hollow rotating drum (4); the gear cover (25) is fixedly connected to a side end of the fixed shell (1); The driven gear (26) is fixedly connected to an extended end of the hollow drum (4), and the driven gear (26) 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 between 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 the driving gear (27) is located between the inner walls of the gear cover (25). The driving gear (27) is meshed with the driven gear (26).

4. The easily adjustable LED lighting device according to claim 3, characterized in that: The limiting assembly comprises a ratchet cover (19), a ratchet wheel (21), a pawl (23) and an electric push rod (24); the ratchet cover (19) is sleeved on the other extended end of the hollow drum (4), and the ratchet cover (19) is fixedly connected to the other side end of the fixed housing (1); the ratchet wheel (21) is fixedly connected to the other extended end of the hollow drum (4), and the ratchet wheel (21) 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 the pawl (23) is engaged with the ratchet wheel (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 the output end of the electric push rod (24) is rotatably connected to the pawl (23).

5. The easily adjustable LED lighting device according to claim 4, characterized in that: The guide assembly comprises an arc-shaped limit groove (15), a limit slide block (16) and an adapter block (17); two limit slide blocks (16) are provided, the two limit slide blocks (16) are fixedly connected to the inner wall of the fixed shell (1), and the two limit slide blocks (16) are located on both sides of the fluorescent lamp cover (3); two arc-shaped limit grooves (15) are provided, and the two arc-shaped limit grooves (15) slide between the inner walls of the two limit slide blocks (16); two adapter blocks (17) are provided, and the two adapter blocks (17) are connected to the two support rings (7).

6. The easily adjustable LED lighting device according to claim 5, characterized in that: Each group of the elastic components comprises a compression sleeve (13) and a spring (14); the compression sleeve (13) is sleeved on the circumferential surface of the hollow drum (4); the compression sleeve (13) is connected to the annular electrical contact (11); and the spring (14) is inserted between the hollow drum (4) and the compression sleeve (13).

7. The easily adjustable LED lighting device according to claim 6, characterized in that: An operating terminal (10) is fixedly connected to the inner wall of the fixed housing (1), and the operating terminal (10) is electrically connected to the two annular electrical contacts (11) via electric 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), and an output end of the telescopic contact (20) extends between 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), and 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).

8. The easily adjustable LED lighting device according to claim 7, characterized in that: An arc-shaped sleeve (8) is fixedly connected between the two support rings (7), the arc-shaped sleeve (8) half-wraps the outer surface of the arc-shaped lamp holder (5), and a reflector is fixedly connected to one end of the arc-shaped sleeve (8), and the reflector is located in the lamp groove of the arc-shaped lamp holder (5), and a light-shielding sleeve (9) is fixedly connected between the two ratchet covers (19), and the light-shielding sleeve (9) wraps the arc-shaped outer surface of the fluorescent lamp cover (3).

9. The easily adjustable LED lighting device according to claim 8, characterized in that: A transparent lampshade (2) is provided at the side end of the fixed shell (1), a plurality of slots (29) are provided on the inner wall of the fixed shell (1), a plurality of clips (30) are clipped into the plurality of slots (29), and the plurality of clips (30) are all connected to the transparent lampshade (2).

10. A method for using an easily adjustable LED lighting device, characterized in that: An easily adjustable LED lighting device as claimed in claim 9 comprises the following steps: S1. Installation: Pressing the upper and lower sides of the transparent lampshade (2) causes the plurality of clips (30) to be pulled out from the plurality of clip slots (29), and the fixed housing (1) is attached to the wall surface, and the fixed housing (1) is fixed to the wall surface by means of a plurality of bolts, and then the transparent lampshade (2) is fixed to the side end of the fixed housing (1) by means of the plurality of clips (30) and the plurality of clip slots (29), thereby achieving installation of the LED lighting device; S2. Narrow the lighting range: The output end of the electric push rod (24) contracts and pulls the ratchet (23) to deflect, so that the ratchet (23) releases the engagement with the ratchet wheel (21), and then the stepper motor (28) is powered on to start the stepper motor (28), the output end of the stepper motor (28) drives the driving gear (27) to rotate, the driving gear (27) drives the driven gear (26) to rotate by meshing with the driven gear (26), the driven gear (26) drives the fluorescent lamp cover (3) to rotate, and the fluorescent lamp cover (3) drives the two support rings (7) to rotate. Deflection, the two support rings (7) drive the arc-shaped sleeve (8), the shading sleeve (9) and the two annular electrical contacts (11) to deflect, and the two annular electrical contacts (11) are displaced with the plurality of LED light strips (6) by deflection, so that the plurality of LED light strips (6) are closed one by one from top to bottom, and at the same time, the arc-shaped sleeve (8) blocks the plurality of LED light strips (6) one by one from top to bottom after they are closed by deflection, and by reducing the lighting of the plurality of LED light strips (6), the illumination range of the LED lighting device is narrowed; S3, range lock: In the process of reducing the lighting range, the hollow rotating cylinder (4) drives the ratchet (21) to rotate synchronously. When the lighting range is reduced 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 to push the ratchet (23) to deflect. The ratchet (23) limits the deflection of the hollow rotating cylinder (4) by engaging with the ratchet (21), and then the spacing locks the deflection of the arc sleeve (8) and the two annular electrical contacts (11), thereby locking the lighting range of the LED lighting device. S4, constant brightness: In the process of reducing the lighting range, the ratchet wheel (21) synchronously drives the arc-shaped resistor block (22), and 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), and then increasing the resistance. Under the condition of constant input voltage, the current detector in the operating terminal (10) detects the reduction of 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), and then controls the current input to the multiple groups of LED light strips (6) to decrease, so that the input current matches the remaining lighted LED light strips (6), and then keeps the brightness of the remaining multiple groups of LED light strips (6) unchanged, so that the LED lighting device reduces the lighting range while keeping the lighting brightness of the LED lighting device constant; When the lighting range is expanded, the ratchet wheel (21) drives the arc-shaped resistor block (22) to gradually reset, so that the current detected by the operating terminal (10) increases, and the operating terminal (10) increases the current input to the multiple groups of LED light strips (6) to maintain the brightness of the multiple groups of LED light strips (6). At the same time, the output end of the stepper motor (28) drives the driving gear (27) to rotate in the opposite direction, and the driving 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, and the fluorescent lamp cover (3) drives the two support rings (7), the two annular electrical contacts (11), and the two ratchet covers (19) to reset the deflection, thereby making the multiple groups of LED light strips (6) light up one by one from bottom to top, thereby achieving the LED lighting device expanding the lighting range while maintaining the lighting brightness of the LED lighting device constant; S5. Save electricity: As the lighting range decreases, the input current is reduced synchronously, so as to maintain the lighting brightness while reducing power consumption, thus achieving power saving in LED lighting devices.

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