LED lamp with adjustable projection angle

Abstract

The invention discloses an LED lamp capable of adjusting a projection angle, relates to the technical field of lighting equipment, and aims to solve the problems that an existing table lamp support arm is short in service life, limited in adjustment and tedious in operation. The LED lamp comprises a mounting base, an LED lamp body, a supporting frame and a mounting frame, a driving structure is arranged in the supporting frame, and a rotary connecting structure and an up-down moving structure are arranged on the mounting frame. The driving structure can independently drive the rotating connecting structure to achieve left-right angle adjustment of the LED lamp or drive the up-down moving structure to drive the LED lamp to swing up and down. The up-and-down moving structure can be limited when connected with the LED lamp, and the LED lamp is prevented from naturally swinging down due to gravity. Through cooperation of a rigid structure, the service life is prolonged, multi-direction flexible adjustment is achieved, operation is easy and convenient, and an independent lock is not needed.

Description

Technical Field

[0001] This invention relates to the field of lighting equipment, specifically to an LED lamp with an adjustable projection angle. Background Technology

[0002] In daily work and life, desk lamps, as close-range lighting tools, directly affect the user's visual experience and ease of use. LED lamps, with their numerous advantages, have become the ideal choice for desk lamps: Firstly, LED light sources are characterized by low energy consumption and high luminous efficiency, providing ample illumination while reducing energy consumption; secondly, their light is stable and its spectrum is close to natural light, containing no ultraviolet or infrared rays, effectively reducing eye strain from prolonged use and meeting the eye-protection needs of close-range desk lamp lighting; thirdly, LEDs are compact, making them easy to integrate into various desk lamp structures, providing greater flexibility in lamp design.

[0003] However, desk lamps are used in a variety of scenarios, from writing and reading to operating electronic devices, and users have significantly different needs regarding the angle and range of light in different situations. Desk lamps with fixed angles often struggle to adapt to these changes: improper lighting angles can easily create shadows on the work surface, or direct light can cause glare, affecting work efficiency and potentially exacerbating eye strain. Furthermore, different users have different heights and postures, and the fixed lighting angle of the same desk lamp cannot meet individual usage needs. Therefore, the angle adjustment function of a desk lamp becomes crucial to improving its applicability.

[0004] Existing desk lamp angle adjustment mostly relies on the support arm. Although the flexible metal support arm can be bent at will to achieve any angle adjustment of the lamp, it has problems such as short service life and internal metal being prone to fatigue and breakage. The mounting bracket support arm is adjusted by pivot points, but the adjustment direction is limited (mostly up and down adjustment), and left and right adjustment requires additional pivot points. Moreover, each rotatable pivot point needs to be tightened and loosened with a lock, making the operation very cumbersome. Summary of the Invention

[0005] In view of the shortcomings of existing technologies, such as short lifespan and easy breakage of flexible metal hose support arms, and limited adjustment direction and cumbersome operation of mounting bracket support arms, this invention provides an LED lamp with adjustable projection angle, aiming to achieve flexible multi-directional adjustment of the table lamp LED lamp, extend its service life, and simplify the operation process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an LED lamp with an adjustable projection angle, comprising a mounting base fixed to a desktop and an LED lamp for lighting, wherein a support frame is provided on the mounting base, and a mounting bracket is provided on one side of the support frame, wherein one side of the mounting bracket is rectangular and the other side is semi-circular; The support frame is equipped with a drive structure inside, and the mounting frame is equipped with a rotating connection structure on the semi-circular side and a vertical moving structure on the rectangular side. Both the rotating connection structure and the vertical moving structure are connected to the working end of the drive structure. The LED lamp is located above the mounting base, and one side of it is movably connected to the rotating connection structure. The rotating connection structure is movably connected to the vertical moving structure, and the vertical moving structure is movably connected to the LED lamp. The driving structure can independently drive the rotating connection structure to rotate, thereby causing the LED lamp to adjust its angle in the left and right directions; at the same time, the driving structure can independently drive the up and down moving structure to operate, so that the up and down moving structure causes the LED lamp to swing up and down on the rotating connection structure. When the vertical moving structure is connected to the LED lamp, it limits its movement and prevents the LED lamp from swinging down naturally due to gravity. Furthermore, the drive structure includes a drive assembly, a transmission assembly one, and a transmission assembly two: The support frame is divided into two layers. The first transmission component and the second transmission component are located in the two layers respectively, and are vertically corresponding to each other. The drive assembly is slidably mounted on one side of the support frame and can be connected to either the first transmission assembly or the second transmission assembly by sliding. The other end of the first transmission component is connected to the rotary connection structure, and the second transmission component is connected to the vertical moving structure. Furthermore, the drive assembly includes a rotating rod, a knob, assembly block one, and assembly block two: The rotating rod is slidably mounted on the support frame, and the knob is located at the top of the rotating rod and above the support frame. Assembly block one and assembly block two are spaced apart on the rotating rod and are both located inside the support frame; The first assembly block can be connected to the first transmission assembly, and the second assembly block can be connected to the second transmission assembly; When the rotating rod slides, it drives the first assembly block and the second assembly block to move synchronously. When the first assembly block is connected to the first transmission component, the second assembly block is disengaged from the second transmission component, and vice versa. Furthermore, the transmission assembly one includes a transmission gear one, a transmission gear two, and a timing belt one: The first transmission gear and the second transmission gear are respectively rotatably disposed on both sides inside the support frame, and the two ends of the first synchronous belt are respectively sleeved on the first transmission gear and the second transmission gear. The transmission gear is provided with an assembly groove, which is connected to the assembly block. The transmission gear two is provided with a transmission rod one, which is connected to the rotating connection structure through the transmission rod one. Furthermore, the transmission assembly two includes transmission gear three, transmission gear four, and synchronous belt two: The transmission gear three and transmission gear four are respectively rotatably disposed on both sides of the support frame. The transmission gear three is located directly above the transmission gear one (the two are vertically corresponding), and the transmission gear four is located diagonally above the transmission gear two (the two are staggered and corresponding). The two ends of the synchronous belt two are respectively sleeved on the transmission gear three and the transmission gear four; The transmission gear three is provided with a through hole-shaped assembly groove two, which is connected to the assembly block two. The upper end of the transmission gear four is provided with a transmission rod two, which is connected to the vertical moving structure through the transmission rod two. The staggered arrangement of the four transmission gears and the two transmission gears ensures that the first transmission rod and the second transmission rod do not interfere with each other. Furthermore, both assembly block one and assembly block two are polygonal structures, and the shapes of assembly groove one and assembly groove two are adapted to assembly block one and assembly block two, respectively, and assembly block one and assembly block two can slide in assembly groove one and assembly groove two, respectively. Furthermore, the rotating connection structure includes a transmission component and a support component: The support member is rotatably mounted in the mounting frame, and its bottom end is connected to the transmission rod. The transmission component is located at the top of the support component and is movably connected to the LED lamp. The power transmitted through the support component drives the LED lamp to rotate left and right. Furthermore, the support member includes a rotating connecting rod and a rotating support base: The rotating connecting rod is located inside the mounting frame, and its bottom end is connected to the top end of the transmission rod. The rotating support is installed on the top of the mounting frame and connected to the rotating connecting rod. It is limited by the mounting frame and can only rotate on the mounting frame without detaching. The transmission component includes a ball joint and an arc-shaped assembly frame: The ball head is mounted on the upper end of the rotating support base, and the arc-shaped assembly is mounted on one side of the ball head frame; The ball joint frame is connected to the LED lamp via the arc-shaped assembly frame, allowing the LED lamp to move up and down on the ball joint frame. Furthermore, the vertically movable structure includes a mounting component and a linkage component: The mounting component is movably mounted on the ball joint frame and connected to the LED light fixture; The linkage component is slidably installed in the mounting frame and connected to the second transmission rod, and can move up and down under the drive of the second transmission rod. One end of the mounting component is rotatably connected to the linkage component. When the linkage component moves up and down, it causes the mounting component to slide along the ball joint frame, thereby causing the LED lamp to swing up and down. Furthermore, the mounting component includes a mounting connector block and a hemispherical connector frame: The bottom end of the mounting connection block is provided with a fixed shaft, which is connected to the linkage component. One side of the hemispherical connecting frame is connected to the mounting connecting block, and the bottom end is open and covers the ball head frame (the two are movably connected). A horizontal opening is provided on the other side of the hemispherical connecting frame, which is connected to the LED lamp through the opening so that the LED lamp does not move the hemispherical connecting frame synchronously when it rotates left and right. The linkage component includes a threaded rod and a movable plate: The bottom end of the threaded rod is connected to the second transmission rod; The movable plate is symmetrically provided with sliding assembly blocks on both sides and a movable block in the middle. It is slidably installed in the mounting frame through the sliding assembly blocks and threadedly connected to the threaded rod through the movable block. The top of the movable plate is rotatably connected to the fixed shaft. When the threaded rod rotates, it drives the movable plate to slide up and down, thereby moving the hemispherical connecting frame and LED lights through the installation connecting block.

[0007] In summary, the present invention has the following main beneficial effects: 1. Existing flexible metal hose supports are prone to internal metal fatigue fracture due to frequent bending. This invention replaces flexible bending adjustment with a rigid structure: In the drive structure, transmission component one (transmission gear one, transmission gear two, synchronous belt one) and transmission component two (transmission gear three, transmission gear four, synchronous belt two) employ rigid gear and synchronous belt transmission. The support components (rotating connecting rod, rotating support seat) of the rotating connection structure achieve stable rotation through the limiting of the mounting bracket. The linkage components (threaded rod, moving plate) of the up-and-down moving structure achieve linear motion through the cooperation of the sliding assembly block with the rectangular groove of the mounting bracket. This rigid structure avoids repeated bending of the flexible metal hose, significantly reduces structural fatigue, and extends the service life of the lamp.

[0008] 2. Existing mounting brackets have limited adjustment direction of the support arm. This invention achieves multi-directional adjustment through a dual-structure combination: Left and right adjustment: The assembly block one of the drive component cooperates with the assembly slot one of the transmission component one, driving the transmission gear one, the synchronous belt one, and the transmission gear two to rotate. Through the transmission rod one, the support component (rotating connecting rod, rotating support seat) of the rotating connection structure is driven to rotate, thereby causing the transmission component (ball head frame, arc-shaped assembly frame) to drive the LED lamp to rotate left and right. Up and down adjustment: The assembly block 2 of the drive component cooperates with the assembly slot 2 of the transmission component 2, driving the transmission gear 3, the synchronous belt 2, and the transmission gear 4 to rotate. Through the transmission rod 2, the linkage parts (threaded rod, moving plate) of the up and down moving structure are driven to slide up and down, so that the mounting parts (mounting connecting block, hemispherical connecting frame) slide along the ball head frame, causing the LED lamp to swing up and down.

[0009] The two structures, in combination with the drive structure, enable omnidirectional angle adjustment without the need for additional axis points.

[0010] 3. Existing mounting brackets require multiple locking points for fixing the axis, which is cumbersome. This invention achieves convenient adjustment through the sliding switching between the drive component and the transmission component: the rotating rod of the drive component can slide along the support frame, causing assembly blocks one / two to selectively engage with the assembly slots one / two of the transmission components one / two; when adjusting the left / right angle, press the knob to connect assembly block one with transmission component one, and rotate the knob to drive the rotating connection structure; when adjusting the up / down angle, raise the knob to connect assembly block two with transmission component two, and rotate the knob to drive the up / down moving structure. The entire process is completed through the combination of "sliding switching + rotation adjustment," eliminating the need for independent locking devices and greatly simplifying the operation steps.

[0011] 4. In this invention, to prevent the LED lamp from naturally swaying due to gravity, the vertical moving structure and the rotating connection structure form a cooperative limiting mechanism: In the mounting component of the vertical moving structure, the hemispherical connecting frame covers the ball head frame of the rotating connection structure (movable connection), and its side opening is fitted into the middle of the LED lamp, forming a rigid support with the threaded connection of the linkage component (threaded rod, moving plate); when adjusted to the target angle, the thread self-locking characteristics of the threaded rod and the moving block, and the sliding limiting characteristics of the rectangular groove of the mounting frame, together with the covering and limiting of the LED lamp by the hemispherical connecting frame, jointly counteract the gravity of the LED lamp, ensuring that the angle is stable after adjustment and there is no natural deviation. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional sectional view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the mounting frame and support frame in this invention; Figure 4 This is a schematic diagram showing the disassembled state of the driving structure within the support frame in this invention; Figure 5 This is a schematic diagram of the interior of the mounting bracket in this invention. Figure 1 ; Figure 6 This is a schematic diagram of the interior of the mounting bracket in this invention. Figure 2 ; Figure 7 This is a schematic diagram of the assembly of the ball head frame and the hemispherical connecting frame in this invention; Figure 8 This is a schematic diagram showing the disassembled state of the ball head frame and the hemispherical connecting frame in this invention.

[0013] In the diagram: 1. Mounting base; 2. LED light fixture; 3. Support frame; 4. Mounting bracket; 5. Drive structure; 51. Drive assembly; 511. Rotating rod; 512. Knob; 513. Assembly block one; 514. Assembly block two; 52. Transmission assembly one; 521. Transmission gear one; 5211. Assembly slot one; 522. Transmission gear two; 5221. Transmission rod one; 523. Synchronous belt one; 53. Transmission assembly two; 531. Transmission gear three; 5311. Assembly slot two; 532. Transmission gear four; 5321. Transmission rod II; 533. Synchronous belt II; 6. Rotary connection structure; 61. Support component; 611. Ball joint frame; 612. Arc-shaped assembly frame; 62. Transmission component; 621. Rotary connecting rod; 622. Rotary support seat; 7. Up-down moving structure; 71. Mounting component; 711. Mounting connecting block; 7111. Fixed shaft; 712. Hemispherical connecting frame; 7121. Opening; 72. Linkage component; 721. Threaded rod; 722. Moving plate; 723. Moving block; 724. Sliding assembly block. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0015] The embodiments of the present invention will now be described.

[0016] Example 1 like Figures 1 to 8 As shown, an adjustable LED lamp includes a mounting base 1, an LED lamp 2, a support frame 3, a mounting bracket 4, a drive structure 5, a rotating connection structure 6, and a vertical moving structure 7. The mounting base 1 is fixed to the desktop, and a support frame 3 is vertically provided at its top. A mounting frame 4 is integrally formed on one side of the support frame 3. The left side of the mounting frame 4 is rectangular and the right side is semi-circular (to adapt to the rotation trajectory of the rotating connection structure 6). The drive structure 5 is located inside the support frame 3 and includes a drive assembly 51, a first transmission assembly 52, and a second transmission assembly 53. The drive assembly 51 consists of a rotating rod 511, a knob 512, a first assembly block 513, and a second assembly block 514. The rotating rod 511 slides vertically through the support frame 3, and the knob 512 at the top is exposed above the support frame 3 for easy operation by the user. The first assembly block 513 and the second assembly block 514 are hexagonal structures and are fixed at intervals on the rotating rod 511 (located inside the support frame 3). The transmission assembly 52 is located on the lower layer of the support frame 3 and includes a transmission gear 521, a transmission gear 522 and a timing belt 523. The center of the transmission gear 521 is provided with a hexagonal mounting groove 5211 (which is adapted to the mounting block 513), and the top of the transmission gear 522 is provided with a transmission rod 5221. Transmission assembly 2 53 is located on the upper layer of support frame 3, including transmission gear 3 531, transmission gear 4 532 and synchronous belt 2 533. Transmission gear 3 531 has a hexagonal through hole mounting groove 2 5311 (fitted with mounting block 2 514) in the center. Transmission rod 2 5321 is vertically provided at the top of transmission gear 4 532. Transmission gear 3 531 is located directly above transmission gear 1 521, and transmission gear 4 532 is located diagonally above transmission gear 2 522, ensuring that transmission rod 1 5221 and transmission rod 2 5321 do not interfere with each other. The rotating connection structure 6 is located on one side of the semicircular shape of the mounting bracket 4, and includes a support member 62 and a transmission member 61. The support member 62 consists of a rotating connecting rod 621 and a rotating support seat 622. The bottom end of the rotating connecting rod 621 is fixed to the top end of the transmission rod 5221, and the top end is connected to the rotating support seat 622. The rotating support seat 622 is rotatably embedded in the top groove of the mounting bracket 4 (it can only rotate and cannot be detached). The transmission component 61 consists of a ball head frame 611 and an arc-shaped mounting frame 612. The ball head frame 611 is fixed to the top of the rotating support 622. One side of the arc-shaped mounting frame 612 is hinged to the ball head frame 611, and the other side is fixed to the LED lamp 2, so that the LED lamp 2 can swing up and down along the ball head frame 611. The vertically movable structure 7 is located on one side of the rectangular mounting bracket 4, and includes a mounting component 71 and a linkage component 72: Mounting component 71 consists of mounting connecting block 711 and hemispherical connecting frame 712. The fixed shaft 7111 at the bottom of mounting connecting block 711 is rotatably connected to linkage component 72. Hemispherical connecting frame 712 covers the ball head frame 611 (movably connected), and its side opening 7121 is fitted into the middle of LED lamp 2 (without affecting the left and right rotation of LED lamp 2). The linkage 72 consists of a threaded rod 721 and a movable plate 722. The bottom end of the threaded rod 721 is fixed to the transmission rod 5321. The movable plate 722 is embedded in the rectangular groove of the mounting frame 4 through the sliding assembly blocks 7221 on both sides. The middle movable block 7222 is threadedly connected to the threaded rod 721, and the top end is rotatably connected to the fixed shaft 7111. Work process: Left and right angle adjustment: The user presses down the knob 512, causing the rotating rod 511 to move down, so that the first assembly block 513 is inserted into the first assembly slot 5211 of the first transmission gear, and the second assembly block 514 is disengaged from the second assembly slot 5311 of the third transmission gear; rotating the knob 512 causes the first transmission gear 521 to rotate through the rotating rod 511, which is then transmitted to the second transmission gear 522 via the synchronous belt 523, and then drives the rotating connecting rod 621 and the rotating support seat 622 to rotate through the first transmission rod 5221, ultimately causing the ball head bracket 611 to drive the LED lamp 2 to rotate left and right. Up and down angle adjustment: The user lifts the knob 512 upwards, causing the rotating rod 511 to move upwards, so that the assembly block 2 514 is embedded in the assembly groove 2 5311 of the transmission gear 3, and the assembly block 1 513 is disengaged from the assembly groove 1 5211; rotating the knob 512 causes the transmission gear 3 531 to rotate through the rotating rod 511, which is then transmitted to the transmission gear 4 532 via the synchronous belt 2 533, and then drives the threaded rod 721 to rotate through the transmission rod 2 5321, so that the moving plate 722 slides up and down along the mounting bracket 4, and then drives the hemispherical connecting bracket 712 to swing along the ball head bracket 611 through the mounting connecting block 711, and finally pushes the LED lamp 2 to adjust up and down. Angle locking: The connection between the hemispherical connecting bracket 712 of the vertical moving structure 7 and the LED lamp 2 can counteract the gravity of the LED lamp 2, preventing it from swinging down naturally after adjustment and achieving angle stability.

[0017] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An LED light fixture with adjustable projection angle, comprising: The mounting base (1) fixed to the desktop and the LED lamp for lighting are characterized in that they further include: a support frame (3) disposed on the mounting base (1) and a mounting frame (4) disposed on one side of the support frame (3); one side of the mounting frame (4) is rectangular and the other side is semi-circular; The support frame (3) is provided with a drive structure (5) inside. The mounting frame (4) has a rotating connection structure (6) on one side of its semicircle and a vertical moving structure (7) on one side of its rectangle. Both the rotating connection structure (6) and the vertical moving structure (7) are connected to the working end of the drive structure (5). The LED lamp is located above the mounting base (1), and one side of it is movably connected to the rotating connection structure (6). The rotating connection structure (6) is movably connected to the up-down moving structure (7), and the up-down moving structure (7) is movably connected to the LED lamp. The driving structure (5) can drive the rotating connection structure (6) to rotate independently to drive the LED lamp to adjust the left and right angles, and can also drive the up and down moving structure (7) to operate independently, so that the up and down moving structure (7) drives the LED lamp to swing up and down on the rotating connection structure (6). When the vertical moving structure (7) is connected to the LED lamp, it limits its movement to prevent the LED lamp from swinging down naturally due to gravity.

2. The LED lamp with adjustable projection angle according to claim 1, characterized in that, The drive structure (5) includes a drive component (51), a transmission component one (52), and a transmission component two (53). The support frame (3) is divided into two layers. The transmission component one (52) and the transmission component two (53) are located in the two layers and are vertically corresponding. The drive component (51) is slidably installed on one side of the support frame (3) and can be connected to the transmission component one (52) or the transmission component two (53) by sliding. The other end of the transmission component one (52) is connected to the rotating connection structure (6), and the transmission component two (53) is connected to the vertical moving structure (7).

3. The LED lamp with adjustable projection angle according to claim 2, characterized in that, The drive assembly (51) includes a rotating rod (511), a knob (512), a first assembly block (513), and a second assembly block (514). The rotating rod (511) slides through the support frame (3). The knob (512) is located at the top of the rotating rod (511) and outside the support frame (3). The first assembly block (513) and the second assembly block (514) are spaced apart on the rotating rod (511) and located inside the support frame (3). The first assembly block (513) can be connected to the first transmission assembly (52), and the second assembly block (514) can be connected to the second transmission assembly (53). When the rotating rod (511) slides, it drives the first assembly block (513) and the second assembly block (514) to move, so that one of them can be connected to the corresponding assembly.

4. The LED lamp with adjustable projection angle according to claim 3, characterized in that, The transmission assembly 1 (52) includes a transmission gear 1 (521), a transmission gear 2 (522) and a timing belt 1 (523). The transmission gear 1 (521) and the transmission gear 2 (522) are respectively rotatably disposed on both sides of the support frame (3), and the timing belt 1 (523) is sleeved between the two. The first transmission gear (521) is provided with an assembly groove (5211), which is connected to the first assembly block (513) through the assembly groove (5211). The second transmission gear (522) is provided with a transmission rod (5221), which is connected to the rotating connection structure (6) through the transmission rod (5221).

5. An LED lamp with adjustable projection angle according to claim 4, characterized in that, The transmission assembly two (53) includes a transmission gear three (531), a transmission gear four (532), and a timing belt two (533). The transmission gear three (531) and the transmission gear four (532) are rotatably mounted on both sides of the support frame (3). The transmission gear three (531) is located directly above the transmission gear one (521) and is vertically corresponding to it. The transmission gear four (532) is located diagonally above the transmission gear two (522) and is staggered to it. The timing belt two (533) is sleeved between the two. The transmission gear three (531) is provided with a through hole-shaped assembly groove two (5311), which is connected to the assembly block two (514) through the assembly groove two (5311). The transmission gear four (532) is provided with a transmission rod two (5321) at the upper end, which is connected to the up-down moving structure (7) through the transmission rod two (5321).

6. The LED lamp with adjustable projection angle according to claim 5, characterized in that, Both assembly block one (513) and assembly block two (514) are polygonal. The shapes of assembly groove one (5211) and assembly groove two (5311) are adapted to assembly block one (513) and assembly block two (514) respectively, and assembly block one (513) and assembly block two (514) can slide in assembly groove one (5211) and assembly groove two (5311) respectively.

7. An LED lamp with adjustable projection angle according to claim 5, characterized in that, The rotating connection structure (6) includes a transmission component (62) and a support component (61). The support component (61) is rotatably installed in the mounting frame (4), and its bottom end is connected to the transmission rod (5221). The transmission component (62) is located at the top of the support component (61) and is movably connected to the LED lamp. It can make the LED lamp rotate left and right under the drive of the support component (61).

8. An LED lamp with adjustable projection angle according to claim 7, characterized in that, The support member (61) includes a rotating connecting rod (621) and a rotating support seat (622). The rotating connecting rod (621) is located inside the mounting frame (4), and its bottom end is connected to the top end of the transmission rod (5221). The rotating support seat (622) is installed on the top end of the mounting frame (4) and is connected to the rotating connecting rod (621). The transmission component (62) includes a ball head frame (611) and an arc-shaped assembly frame (612). The ball head frame (611) is located on the upper end of the rotating support base (622), and the arc-shaped assembly frame (612) is located on one side of the ball head frame (611). The ball head frame (611) is connected to the LED lamp through the arc-shaped assembly frame (612), so that the LED lamp can move up and down.

9. An LED lamp with adjustable projection angle according to claim 8, characterized in that, The vertical moving structure (7) includes a mounting component (71) and a linkage component (72). The mounting component (71) is movably mounted on the ball head frame (611) and connected to the LED lamp. The linkage component (72) is slidably disposed in the mounting frame (4) and connected to the transmission rod two (5321). It can move up and down under the drive of the transmission rod two (5321). One end of the mounting component (71) is rotatably connected to the linkage component (72). It can slide along the ball head frame (611) under the drive of the linkage component (72), thereby driving the LED lamp to swing up and down.

10. An LED lamp with an adjustable projection angle according to claim 9, characterized in that, The mounting component (71) includes a mounting connecting block (711) and a hemispherical connecting frame (712). The mounting connecting block (711) has a fixed shaft (7111) at its bottom end, which is connected to the linkage component (72) through the fixed shaft (7111). One side of the hemispherical connecting frame (712) is connected to the mounting connecting block (711), and the bottom end is open and covers the ball head frame (611) and is movably connected. The other side has a transverse opening (7121), which is connected to the LED lamp through the opening (7121). The linkage component (72) includes a threaded rod (721) and a movable plate (722). The bottom end of the threaded rod (721) is connected to the transmission rod (5321). The movable plate (722) has sliding assembly blocks (724) on both sides and a movable block (723) in the middle. It is slidably disposed in the mounting frame (4) through the sliding assembly blocks (724) and threadedly connected to the threaded rod (721) through the movable block (723). Its top end is rotatably connected to the fixed shaft (7111).

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