LED floodlight with adjustable brightness

Abstract

The utility model belongs to the technical field of LED lamps, particularly relates to a brightness-adjustable LED floodlight, and provides the following scheme aiming at the problems that although the brightness can be adjusted, the irradiation range is difficult to adjust in the use process, and the illumination practicability is not favorably improved: the brightness-adjustable LED floodlight comprises a U-shaped support frame, a brightness-adjustable LED floodlight body is arranged in the U-shaped support frame, and the brightness-adjustable LED floodlight body is arranged in the U-shaped support frame; the LED floodlight body is rotationally installed on the inner wall of the U-shaped supporting frame through rotating rods fixedly arranged on the two sides, a brightness adjusting knob and a control switch are arranged on the back side of the LED floodlight body, and universal wheels are fixedly installed at the four corners of the bottom of the U-shaped supporting frame. When the LED floodlight is used, through the inclination adjusting assembly and the irradiation range adjusting assembly, a user can conveniently adjust the irradiation angle and the irradiation range of the LED floodlight so as to meet different illumination requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED lamp technical field especially, it relates to a kind of adjustable brightness's LED floodlight. BACKGROUND

[0002] Adjustable brightness's LED floodlight is a kind of widely used lamp in lighting field.It uses light-emitting diode (LED) as light source, and can change its brightness by adjusting driving current, and provides more comfortable and energy-saving lighting solution for user.

[0003] After searching, the patent with the announcement number CN209402789U discloses a kind of adjustable brightness and color temperature's LED lamp, the lamp although can adjust brightness, but in use process, it is difficult to adjust illumination range, not conducive to improve lighting practicability.

[0004] For the above problems, the utility model file proposes a kind of adjustable brightness's LED floodlight. INVENTION CONTENTS

[0005] The utility model provides a kind of adjustable brightness's LED floodlight, solve the shortcomings that although can adjust brightness in prior art, it is difficult to adjust illumination range in use process, not conducive to improve lighting practicability.

[0006] The utility model provides the following technical scheme:

[0007] A kind of adjustable brightness's LED floodlight, comprising:

[0008] U type support frame, the U type support frame is provided with the LED floodlight body of adjustable brightness, the LED floodlight body is rotatably installed on the inner wall of U type support frame by the rotatable rod of both sides fixed setting, the back of the LED floodlight body is provided with brightness adjusting knob and control switch, universal wheel is fixedly installed at the four corners of the bottom of U type support frame;

[0009] Inclination adjustment component, be located on U type support frame, for adjusting the irradiation angle of LED floodlight body;

[0010] Illumination range adjustment component, be located on LED floodlight body, for adjusting the illumination range of LED floodlight body.

[0011] In a possible design, the inclination adjustment component includes mounting plate fixedly arranged on one side of U type support frame, the top of the mounting plate is hingedly connected with support rod, the top end of the support rod is slidably connected with telescopic rod, and the support rod is threadedly connected with fixing bolt for locking the extension position of telescopic rod.

[0012] In a possible design, the irradiation range adjusting assembly comprises a mounting box fixedly arranged on the top of the LED floodlight body, a screw rod is rotatably arranged on each end of the inner wall of the mounting box, the threads on the two screw rods are oppositely arranged, a rotating bearing for supporting the other end of the screw rod is fixedly arranged on the inner wall of the mounting box, the other end of the screw rod is welded to the inner ring of the rotating bearing, a matching sliding seat is threadedly connected to the screw rod, a U-shaped moving rod is fixedly arranged on one side of the sliding seat and penetrates through the side opening of the mounting box, a folding baffle is fixedly arranged on the U-shaped moving rod, the other end of the folding baffle is fixedly connected to the edge of the LED floodlight body, a limiting strip is fixedly arranged on the bottom of the LED floodlight body, and the other end of the U-shaped moving rod is slidably connected to the sliding groove on the side wall of the limiting strip.

[0013] In a possible design, the other end of the screw rod penetrates through the end of the rotating bearing and is fixedly provided with a first bevel gear, a second bevel gear is rotatably arranged on the top of the inner wall of the mounting box, the second bevel gear is engaged with the two first bevel gears, and the top end of the second bevel gear penetrates through the top of the outer wall of the mounting box and is fixedly provided with a cross screw bolt.

[0014] In a possible design, a sliding block for improving the movement stability of the sliding seat is fixedly arranged on the top of the sliding seat, and a limiting sliding hole for slidably connecting the corresponding sliding block is arranged on the top of the mounting box.

[0015] In a possible design, a fixing plate is fixedly arranged at the leg of the U-shaped support frame, a fixing box body is fixedly arranged on the top of the fixing plate, and an electricity storage box for power supply is clamped on the top of the fixing box body, and the electricity storage box is connected to the LED floodlight body through plug-in wires.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present application.

[0017] The working principle and use process of the technical solution are as follows:

[0018] In use, the adjustable brightness LED floodlight is placed at the required position, the universal wheels at the bottom of the U-shaped support frame are used for movement and adjustment, and it is ensured that the electricity storage box has been correctly arranged on the fixing box body, the plug-in wires are connected to the LED floodlight body for power supply, then the light is turned on through the control switch on the back side of the LED floodlight body, the brightness adjusting knob is used, and the brightness of the LED floodlight body is adjusted according to actual needs.

[0019] When adjusting the irradiation angle, loosen the fixing bolt in the inclination adjustment assembly, allow the telescopic rod to slide on the supporting rod, adjust the extension length of the telescopic rod as needed, thereby changing the irradiation angle of the LED floodlight body, after adjustment, tighten the fixing bolt again to lock the position of the telescopic rod;

[0020] When adjusting the irradiation range, rotate the cross screw bolt in the irradiation range adjustment assembly, drive the second bevel gear to rotate, the second bevel gear meshes with the two first bevel gears, so that the two screws rotate simultaneously but in opposite directions, the rotation of the screws causes the sliding seat to move on the screws, thereby driving the U-shaped moving rod and the folding baffle to move, the unfolding or folding of the folding baffle changes the irradiation range of the LED floodlight body, by observing the irradiation effect, gradually adjust the cross screw bolt until the desired irradiation range is achieved.

[0021] The utility model has the following beneficial effects:

[0022] The utility model discloses the inclination adjustment assembly and irradiation range adjustment assembly, and the user can conveniently adjust the irradiation angle and range of LED floodlight to adapt to different lighting needs.

[0023] The utility model discloses the U-shaped support frame provides the stable support, ensures that the LED floodlight keeps stable when adjusting the angle and range, and the design of universal wheel makes the whole equipment can conveniently move and position, is applicable to multiple occasions;The design of the battery box makes the equipment also can normally work under the condition of no external power supply, improves the convenience and flexibility of use. DRAWINGS

[0024] Figure 1 It is the three-dimensional structure schematic diagram of the adjustable brightness LED floodlight provided in the utility model embodiment;

[0025] Figure 2 It is another visual angle structure schematic diagram of the adjustable brightness LED floodlight provided in the utility model embodiment;

[0026] Figure 3 It is the irradiation range adjustment assembly structure schematic diagram of the adjustable brightness LED floodlight provided in the utility model embodiment;

[0027] Figure 4 It is the inside structure schematic diagram of the mounting box of the adjustable brightness LED floodlight provided in the utility model embodiment;

[0028] Figure 5 It is the brightness adjustment flow chart of the utility model embodiment.

[0029] Fig. 1, U-shaped support frame; 2, LED floodlight body; 3, rotating rod; 4, mounting plate; 5, support rod; 6, telescopic rod; 7, fixing bolt; 8, brightness adjusting knob; 9, control switch; 10, mounting box; 11, screw rod; 12, rotating bearing; 13, sliding seat; 14, U-shaped moving rod; 15, folding baffle; 16, limiting strip; 17, first bevel gear; 18, second bevel gear; 19, cross bolt; 20, sliding block; 21, limiting sliding hole; 22, fixing plate; 23, fixing box body; 24, power storage box; 25, universal wheel. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0031] In the description of the present application, it should be understood that the terms "opening", "upper", "middle", "length", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0032] In order to keep the following description of the embodiments of the present application clear and concise, the present application omits the detailed description of known functions and known components. EMBODIMENT

[0033] Please refer to Figures 1-4 A brightness-adjustable LED floodlight applied in the field of LED lamps, comprising:

[0034] The U-shaped support frame 1 is designed to stably support and fix the LED floodlight body 2. The LED floodlight body 2 is rotatably mounted on the inner wall of the U-shaped support frame 1 through the rotating rods 3 on both sides, which enables the LED floodlight body 2 to rotate within a certain range to meet different lighting needs. On the back side of the LED floodlight body 2, there are a brightness adjusting knob 8 and a control switch 9, which can be used by users to adjust the brightness and on-off state of the LED floodlight. In addition, universal wheels 25 are fixedly installed at the four corners of the bottom of the U-shaped support frame 1, which enables the entire device to be conveniently moved and positioned.

[0035] In order to realize the adjustment of the irradiation angle of the LED floodlight body 2, an inclination adjustment assembly is designed, which comprises a mounting plate 4 fixedly arranged on one side of the U-shaped support frame 1, a support rod 5 hingedly connected to the top of the mounting plate 4, and a telescopic rod 6 slidingly connected to the top end of the support rod 5. By adjusting the extension length of the telescopic rod 6, the inclination angle of the LED floodlight body 2 can be changed. In order to lock the extension position of the telescopic rod 6, a fixing bolt 7 is threadedly connected to the support rod 5. After the angle is adjusted, the position of the telescopic rod 6 can be fixed by tightening the fixing bolt 7.

[0036] In order to adjust the irradiation range of the LED floodlight body 2, an irradiation range adjustment assembly is designed, which comprises a mounting box 10 fixedly arranged on the top of the LED floodlight body 2, a screw rod 11 rotatably installed on the inner wall of the mounting box 10 at both ends, and the threads on the two screw rods 11 are oppositely arranged. When one of the screw rods 11 is rotated, the sliding seats 13 on the two screw rods 11 will move in opposite directions at the same time. A U-shaped moving rod 14 is fixedly arranged on one side of the sliding seat 13 and penetrates through the side opening of the mounting box 10. A folding baffle 15 is fixedly arranged on the U-shaped moving rod 14. The other end of the folding baffle 15 is fixedly connected with the edge of the LED floodlight body 2. When the sliding seat 13 moves, the folding baffle 15 will expand or contract accordingly, thereby adjusting the irradiation range of the LED floodlight body 2. In addition, a limiting strip 16 is fixedly arranged on the bottom of the LED floodlight body 2, and the other end of the U-shaped moving rod 14 is slidingly connected with the sliding groove on the side wall of the limiting strip 16, so as to ensure the stability of the folding baffle 15 during movement.

[0037] In order to more conveniently adjust the rotation of the two screw rods 11, a first bevel gear 17 is fixedly arranged on the other end of the screw rod 11 and penetrates through the end of the rotating bearing 12. A second bevel gear 18 is rotatably installed on the central top of the inner wall of the mounting box 10 and engages with the two first bevel gears 17. Therefore, when the second bevel gear 18 is rotated, the two first bevel gears 17 can be driven to rotate at the same time, thereby driving the two screw rods 11 to rotate synchronously. In order to facilitate the rotation of the second bevel gear 18, a cross screw bolt 19 is fixedly arranged on the top end of the second bevel gear 18 and penetrates through the top of the outer wall of the mounting box 10. The user only needs to rotate the cross screw bolt 19 to realize the synchronous rotation of the two screw rods 11.

[0038] In order to improve the stability of the sliding seat 13 during movement, a sliding block 20 is fixedly arranged on the top of the sliding seat 13, and a limiting sliding hole 21 for slidingly connecting the corresponding sliding block 20 is arranged on the top of the mounting box 10. When the sliding seat 13 moves, the sliding block 20 will slide in the limiting sliding hole 21, thereby limiting the shaking range of the sliding seat 13 and improving its stability.

[0039] In order to facilitate the power supply of the LED floodlight body 2, the fixing plate 22 is fixedly arranged at the supporting leg of the U-shaped support frame 1, and the fixing box body 23 is fixedly arranged at the top of the fixing plate 22, the power storage box 24 for power supply is clamped at the top of the fixing box body 23, and the power storage box 24 is connected with the LED floodlight body 2 through plug-in wires, so as to realize the power supply of the LED floodlight body 2, so that the user can provide power support for the LED floodlight body 2 without external power supply. Embodiment

[0040] Please refer to Figure 5 The brightness adjustment process of the LED floodlight body 2 is:

[0041] Power access: the power storage box 24 is connected with the power input end of the LED floodlight body 2 through plug-in wires, the power is processed through rectification, filtering and other processes, converted into direct current suitable for the working of the LED lamp beads, and the output voltage is stabilized through the use of a linear voltage stabilizer, so as to avoid the influence of voltage fluctuation on the brightness of the LED.

[0042] Signal input: the brightness adjustment signal can be input through the brightness adjustment knob 8, and the input is a digital signal PWM, which can be processed subsequently.

[0043] PWM dimming: for PWM dimming, the control circuit adjusts the switching duty ratio of the LED according to the input PWM signal, the greater the duty ratio, the longer the LED is on, and the higher the brightness; the smaller the duty ratio, the shorter the LED is on, and the lower the brightness.

[0044] Drive circuit: the control signal is converted into a signal capable of driving the LED lamp beads through the drive circuit, the drive circuit should have good stability and efficiency to ensure the normal work of the LED and the accuracy of the brightness adjustment, the signal processed by the drive circuit is sent to the LED lamp beads, and the LED lamp beads emit light according to the received signal, and the brightness is determined by the duty ratio of the signal.

[0045] Brightness output: the light emitted by the LED lamp beads forms the required lighting effect after optical processing, and the brightness output should be stable and continuous without flickering or jitter.

[0046] However, as known to those skilled in the art, the working principle and wiring method of the LED floodlight body 2 and the power storage box 24 are common, which belong to conventional means or common knowledge, and will not be described here, and those skilled in the art can select and match as needed or convenient.

[0047] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application; the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A dimmable LED floodlight, characterized in that, Include: The U-shaped support frame (1) is provided with a brightness adjustable LED floodlight body (2), the LED floodlight body (2) is rotatably installed on the inner wall of U-shaped support frame (1) through the rotatable rod (3) fixedly arranged on both sides, the back side of the LED floodlight body (2) is provided with brightness adjusting knob (8) and control switch (9), the four corners of the bottom of the U-shaped support frame (1) are all fixedly installed with universal wheel (25); The inclination adjusting assembly is arranged on the U-shaped support frame (1), and is used for adjusting the irradiation angle of the LED floodlight body (2); The irradiation range adjusting assembly is arranged on the LED floodlight body (2), and is used for adjusting the irradiation range of the LED floodlight body (2).

2. The dimmable LED floodlight of claim 1, wherein, The inclination adjusting assembly includes the mounting plate (4) fixedly arranged on one side of the U-shaped support frame (1), the top of the mounting plate (4) is hingedly connected with the support rod (5), the top end of the support rod (5) is slidably connected with the telescopic rod (6), and the support rod (5) is threadedly connected with the fixing bolt (7) for locking the extension position of the telescopic rod (6).

3. The dimmable LED floodlight of claim 1, wherein, The irradiation range adjusting assembly includes the mounting box (10) fixedly arranged on the top of the LED floodlight body (2), both ends of the inner wall of the mounting box (10) are rotatably connected with a screw rod (11), the threads on the two screw rods (11) are oppositely arranged, the inner wall of the mounting box (10) is fixedly provided with a rotating bearing (12) for supporting the other end of the screw rod (11), the other end of the screw rod (11) is welded with the inner ring of the rotating bearing (12), the screw rod (11) is threadedly connected with a matching sliding seat (13), one side of the sliding seat (13) penetrates through the side opening of the mounting box (10) and is fixedly provided with a U-shaped moving rod (14), the U-shaped moving rod (14) is fixedly provided with a folding baffle (15), the other end of the folding baffle (15) is fixedly connected with the edge of the LED floodlight body (2), the bottom of the LED floodlight body (2) is fixedly provided with a limiting strip (16), and the other end of the U-shaped moving rod (14) is slidably connected with the sliding groove on the side wall of the limiting strip (16).

4. The dimmable LED floodlight of claim 3, wherein, The other end of the screw rod (11) penetrates through the end of the rotating bearing (12) and is fixedly provided with a first bevel gear (17), the central part of the top of the inner wall of the mounting box (10) is rotatably provided with a second bevel gear (18), the second bevel gear (18) is engaged with the two first bevel gears (17), and the top end of the second bevel gear (18) penetrates through the top of the outer wall of the mounting box (10) and is fixedly provided with a cross bolt (19).

5. The dimmable LED floodlight of claim 3, wherein, The top of the sliding seat (13) is fixedly provided with a sliding block (20) for improving the movement stability, and the top of the mounting box (10) is provided with a limiting sliding hole (21) for slidably connecting the corresponding sliding block (20).

6. The dimmable LED floodlight of claim 1, wherein, The U-shaped support frame (1) is fixedly provided with a fixed plate (22) at the leg, the top of the fixed plate (22) is fixedly provided with a fixed box body (23), the top of the fixed box body (23) is clamped with an electricity storage box (24) for power supply, and the electricity storage box (24) is connected with the LED floodlight body (2) through plug-in wires.

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