LED lighting lamp with variable projection angle

Abstract

The utility model provides an LED lighting lamp with a variable projection angle. The LED lighting lamp comprises a base, a main lamp arm arranged above the base, auxiliary rods arranged on the left side and the right side above the main lamp arm, an auxiliary lamp arm rotationally connected to the upper end of the main lamp arm, a lampshade arranged at the upper end of the auxiliary lamp arm, and a connecting piece fixedly installed at the upper end of the base. According to the LED lighting lamp with the variable projection angle, the connecting piece, the main lamp arm, the auxiliary rod, the auxiliary lamp arm and other structures are arranged, the main lamp arm is pushed to drive the auxiliary rod to rotate on the connecting piece, the lighting height of the lamp is preliminarily changed, then the inclination angle of the auxiliary lamp arm is changed through the rotating shaft, and the lighting height of the lamp is further changed; and then the auxiliary rod and the connecting piece are fixed again, the lamp is fixed to the current height, the lamp cover rotates on the auxiliary lamp arm, the illumination angle of the lamp cover can be changed, the illumination angle of the lamp can be adjusted according to the habits of a user, lamplight is softer, and the use experience of the user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting fixtures, and more specifically, to an LED lighting fixture with a variable projection angle. Background Art

[0002] A table lamp is one of the more common lighting fixtures in life, usually common in study rooms and bedrooms, belonging to a type of local lighting, mainly used for reading, studying, etc., and at the same time will not affect the rest of others. Table lamps often use LEDs as light sources, with the characteristics of energy saving, eye protection, and adjustable color temperature.

[0003] However, the existing lighting fixtures have the following problems when in use:

[0004] The lighting direction angle of the table lamp cannot be adjusted. When in use, if the lighting angle of the table lamp is not good, too strong or too weak light will cause an impact on the user's eyes, making the user feel dazzling or fatigued, resulting in a poor user experience and also having a certain impact on aspects such as learning or reading.

[0005] The utility model can change the irradiation angle of the table lamp, enabling the table lamp to freely adjust the light irradiation angle and be able to move freely. Summary of the Utility Model

[0006] The purpose of the utility model is to solve the technical problems proposed in the above background art, and provide an LED lighting fixture with a variable projection angle.

[0007] To achieve the above purpose, the utility model provides the following technical solution: An LED lighting fixture with a variable projection angle, comprising: a base, a main lamp arm is arranged above the base, auxiliary rods are arranged on both the left and right sides above the main lamp arm, the upper end of the main lamp arm is rotatably connected to an auxiliary lamp arm, a lampshade is arranged at the upper end of the auxiliary lamp arm, a connecting piece is fixedly installed at the upper end of the base, and springs are arranged at both the left and right ends and the middle of the connecting piece.

[0008] Further preferred solution: Adjusting bolts are arranged at both the left and right ends of the connecting piece, the adjusting bolts are respectively threadedly connected to the outer ends of the two auxiliary rods, and the bottoms of the auxiliary rods are connected to the springs at both the left and right ends of the connecting piece.

[0009] Further preferred solution: A connecting shaft is arranged in front of the upper end of the main lamp arm, the other end of the connecting shaft is connected to the auxiliary lamp arm, there is a protruding column behind the upper end of the main lamp arm, the main lamp arm is connected to the auxiliary rod through the protruding column, and the bottom of the main lamp arm is connected to one end of the spring in the middle of the connecting piece.

[0010] Further preferred solution: A fixing block is arranged between the auxiliary rods. Clamping pieces are arranged at both the left and right ends of the fixing block. The clamping pieces are respectively arranged at the outer ends of the contact points between the auxiliary rods and the fixing block. An insertion hole is arranged below the clamping piece. The insertion hole is arranged in a matching manner with the convex column on the main lamp arm.

[0011] Further preferred solution: Connecting holes 1 are respectively arranged on the left and right sides at the upper end of the auxiliary rod. The connecting holes 1 are connected to the bottom of the auxiliary lamp arm.

[0012] Further preferred solution: A connecting head is arranged at the upper end of the auxiliary lamp arm. A connecting hole 2 is arranged on the connecting head. The auxiliary lamp arm is connected to the lampshade through the connecting head.

[0013] Further preferred solution: A connecting block is arranged at the bottom of the lampshade. A threaded hole is arranged on the connecting block. A bolt is threadedly connected in the threaded hole. The connecting hole 2 and the threaded hole have the same structural size. The bolt passes through the threaded hole and is threadedly connected to the connecting hole 2.

[0014] Beneficial effects:

[0015] 1. By providing an adjusting bolt, a main lamp arm, an auxiliary lamp arm and auxiliary rods, using the adjusting bolt, the connection between the auxiliary rod and the connecting piece is loosened, so that the auxiliary rod can rotate on the connecting piece. By pushing the main lamp arm, the main lamp arm drives the auxiliary rod to start tilting. By adjusting the tilting angle of the main lamp arm, the lighting height of the lamp can be increased or decreased. After the adjustment is completed, the adjusting bolt is tightened again to make the auxiliary rod stable at the current tilting degree, so that the lamp can illuminate stably. When further adjustment of the lighting height is required, the tilting angle of the auxiliary lamp arm is adjusted through the rotating shaft to increase or decrease the height of the lampshade, realizing the change of the lighting height, making the lighting height more suitable for users and making users more comfortable to use;

[0016] 2. By providing a connecting head, a connecting block and a bolt, when the lighting angle needs to be adjusted, the bolt is removed from the connecting block, and then the tilting angle of the lampshade is adjusted up and down. The lighting angle of the lampshade changes. Then the bolt is screwed into the connecting block again and passes through the connecting block to fix the connecting head inside the connecting block, so that the lampshade is stable at the current lighting angle to emit light, making the light irradiation angle more suitable for users to use;

[0017] 3. In summary, this type of LED lighting fixture with variable projection angle is provided with structures such as a connecting piece, a main lamp arm, an auxiliary rod and an auxiliary lamp arm. The auxiliary rod is driven to rotate on the connecting piece by pushing the main lamp arm to achieve a preliminary change in the lighting height of the lamp. The inclination angle of the auxiliary lamp arm is then changed through the rotating shaft to further increase or decrease the lighting height of the lamp. The connection between the auxiliary rod and the connecting piece is then re-fixed to fix the lamp at the current height. The lighting angle of the lampshade can be changed by rotating the lampshade on the auxiliary lamp arm, so that the lamp can adjust the lighting angle according to the user's own habits, making the light softer, without affecting the user's use, and improving the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the base structure of the utility model.

[0020] Figure 3 This is a schematic diagram of the lamp arm structure of the utility model.

[0021] Figure 4 This is a schematic diagram of the lampshade structure of the utility model.

[0022] Figures 1-4 In: 1. Base; 101. Connecting piece; 102. Adjusting bolt; 103. Spring; 2. Main lamp arm; 201. Connecting shaft; 3. Auxiliary rod; 301. Fixing block; 302. Clip; 303. Socket; 304. Connecting hole 1; 4. Auxiliary lamp arm; 401. Connecting head; 402. Connecting hole 2; 5. Lamp cover; 501. Connecting block; 502. Screw hole; 503. Bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the attached embodiment of the present utility model Figures 1-4 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0024] See also Figures 1-4, in the embodiment of the present utility model, an LED lighting fixture with variable projection angle includes: a base 1, a main lamp arm 2 is arranged above the base 1, auxiliary rods 3 are arranged on the left and right sides above the main lamp arm 2, the upper end of the main lamp arm 2 is rotatably connected to an auxiliary lamp arm 4, a lamp shade 5 is arranged at the upper end of the auxiliary lamp arm 4, a connecting piece 101 is fixedly installed at the upper end of the base 1, springs 103 are arranged at the left and right ends and the middle of the connecting piece 101, adjusting bolts 102 are arranged at the left and right ends of the connecting piece 101, the adjusting bolts 102 are respectively threadedly connected to the outer ends of the two auxiliary rods 3, the bottom of the auxiliary rod 3 is connected to the springs 103 at the left and right ends of the connecting piece 101, a connecting shaft 201 is arranged in front of the upper end of the main lamp arm 2, the other end of the connecting shaft 201 is connected to the auxiliary lamp arm 4, there is a protruding column at the rear of the upper end of the main lamp arm 2, the main lamp arm 2 is connected to the auxiliary rod 3 through the protruding column, the bottom of the main lamp arm 2 is connected to one end of the spring 103 in the middle of the connecting piece 101, a fixing block 301 is arranged between the auxiliary rods 3, clamping pieces 302 are arranged at the left and right ends of the fixing block 301, the clamping pieces 302 are respectively arranged at the outer ends of the contact points between the auxiliary rod 3 and the fixing block 301, a jack 303 is arranged below the clamping piece 302, the jack 303 is arranged in a matching manner with the protruding column on the main lamp arm 2. By fixing the connecting piece 101 on the base 1, then installing the springs 103 at the middle and left and right ends of the connecting piece 101, and then connecting and fixing the other ends of the springs 103 to the main lamp arm 2 and the auxiliary rod 3 respectively. Subsequently, above the left and right ends of the connecting piece 101, the auxiliary rods 3 are respectively fixed to the left and right ends of the connecting piece 101 by using the adjusting bolts 102. Then, through the fixing of the clamping pieces 302 between the auxiliary rods 3, the fixing block 301 is fixed between the auxiliary rods 3. Subsequently, the protruding column on the main lamp arm 2 is clamped inside the jack 303, and the jack 303 fits with the protruding column, so that the main lamp arm 2 is lifted and fixed by the auxiliary rod 3. Then, the auxiliary lamp arm 4 is connected to the rotating shaft 201, so that a complete lamp arm is formed between the main lamp arm 2 and the auxiliary lamp arm 4. Then, the other end of the auxiliary rod 3 is connected to the auxiliary lamp arm 4, so that the auxiliary rod 3 is completely connected. And through the adjusting bolt 102 and the rotating shaft 201, the main lamp arm 2 and the auxiliary lamp arm 4 are lifted upward. Due to the supporting force provided by the mutual support between the base 1 and the auxiliary rod 3 and the lamp arm, the main lamp arm 2 can be in an inclined state. According to different inclination angles, the height of the lighting of the lamp changes. By adjusting the inclination angle of the auxiliary lamp arm 4 through the rotating shaft 201, the lighting height of the lamp can be further adjusted. According to the needs of the user, the inclination angles of the main lamp arm 2 and the auxiliary lamp arm 4 are flexibly adjusted, so that the lamp is at a suitable lighting height, and the base 1 is not fixed on the desktop and can be moved at any time according to the needs of the user.

[0025] In the embodiment of the present utility model, connection holes 304 are respectively formed on the left and right sides of the upper end of the auxiliary rod 3. The connection holes 304 are connected to the bottom of the auxiliary lamp arm 4. A connection head 401 is arranged at the upper end of the auxiliary lamp arm 4, and a connection hole 402 is formed on the connection head 401. The auxiliary lamp arm 4 is connected to the lamp shade 5 through the connection head 401. A connection block 501 is arranged at the bottom of the lamp shade 5, and a threaded hole 502 is formed on the connection block 501. A bolt 503 is threadedly connected in the threaded hole 502. The connection hole 402 and the threaded hole 502 have the same structure and size. The bolt 503 passes through the threaded hole 502 and is threadedly connected to the connection hole 402. After the base 1 and the lamp arm are installed, by embedding the connection head 401 into the interior of the connection block 501 and then tightening the bolt 503 inward, the lamp shade 5 is fixed on the auxiliary lamp arm 4. When it is necessary to adjust the angle of the lamp shade to change the illumination angle, loosen the bolt 503, then change the angle of the lamp shade 5 back and forth. When the angle is determined, screw the bolt 503 back in to fix the lamp shade 5 at the current angle for illumination.

[0026] Working principle: Install the main lamp arm 2, the auxiliary rod 3 and the auxiliary lamp arm 4 on the base 1, and then install the lamp shade 5 on the auxiliary lamp arm 4. An LED light source is arranged inside the lamp shade 5 to form a complete lighting fixture. When it is necessary to adjust the height of the lighting fixture, loosen the adjusting bolt 102 outward so that the auxiliary rod 3 can rotate up and down on the connecting member 101. By pushing the main lamp arm 2 upward, the auxiliary rod 3 rotates upward while the bottom is still connected to the connecting member 101, increasing the overall height of the lighting fixture. Then tighten the adjusting bolt 102 again to fix the auxiliary rod 3 on the connecting member 101. The fixed auxiliary rod 3 will not rotate or shake randomly and is stabilized at the current height. When it is necessary to further adjust the illumination height of the lighting fixture, adjust the inclination angle of the auxiliary lamp arm 4 through the rotating shaft 201 to increase the height of the lamp shade 5 and change the illumination height. By screwing out the bolt 503, the illumination inclination angle of the lamp shade 5 can be adjusted according to the user's own habits and the comfort of the light. After adjustment, screw the bolt 503 back in to fix the lamp shade 5 on the auxiliary lamp arm 4 and make the lamp shade 5 stable without random shaking.

Claims

1. An LED lighting fixture with variable projection angle, comprising: A base (1), a main lamp arm (2) is arranged above the base (1), auxiliary rods (3) are arranged on the left and right sides above the main lamp arm (2), the upper end of the main lamp arm (2) is rotatably connected to an auxiliary lamp arm (4), and a lampshade (5) is arranged at the upper end of the auxiliary lamp arm (4), characterized in that a connecting piece (101) is fixedly installed at the upper end of the base (1), and springs (103) are arranged at the left and right ends and the middle part of the connecting piece (101).

2. The LED lighting fixture with variable projection angle according to claim 1, characterized in that: Adjustment bolts (102) are provided at both left and right ends of the connecting piece (101), and the adjustment bolts (102) are respectively threadedly connected to the outer ends of the two auxiliary rods (3), and the bottom of the auxiliary rod (3) is connected to the springs (103) at the left and right ends of the connecting piece (101).

3. The LED lighting fixture with variable projection angle according to claim 1, characterized in that: A connecting shaft (201) is arranged in front of the upper end of the main lamp arm (2), and the other end of the connecting shaft (201) is connected to the auxiliary lamp arm (4). A protruding column is arranged at the rear of the upper end of the main lamp arm (2), and the main lamp arm (2) is connected to the auxiliary rod (3) via the protruding column. The bottom of the main lamp arm (2) is connected to one end of a spring (103) in the middle of the connecting piece (101).

4. The LED lighting fixture with variable projection angle according to claim 1, characterized in that: A fixing block (301) is arranged between the auxiliary rods (3), and clips (302) are arranged at both left and right ends of the fixing block (301). The clips (302) are respectively arranged at the outer ends of the contact points between the auxiliary rods (3) and the fixing block (301), and a plug hole (303) is arranged below the clips (302). The plug hole (303) is matched with the protruding column on the main lamp arm (2).

5. The LED lighting fixture with variable projection angle according to claim 4, characterized in that: The left and right sides of the upper end of the auxiliary rod (3) are both provided with connection holes (304), and the connection holes (304) are connected to the bottom of the auxiliary lamp arm (4).

6. The LED lighting fixture with variable projection angle according to claim 1, characterized in that: The upper end of the auxiliary lamp arm (4) is provided with a connecting head (401), a second connecting hole (402) is provided on the connecting head (401), and the auxiliary lamp arm (4) is connected to the lampshade (5) via the connecting head (401).

7. The LED lighting fixture with variable projection angle according to claim 6, characterized in that: A connecting block (501) is provided at the bottom of the lampshade (5), a screw hole (502) is provided on the connecting block (501), a bolt (503) is threadedly connected to the inner thread of the screw hole (502), the second connecting hole (402) and the screw hole (502) are of the same size in structure, and the bolt (503) passes through the screw hole (502) and is threadedly connected to the second connecting hole (402).

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