Portable LED projection lamp lifting mechanism

Abstract

The utility model relates to the technical field of LED project lamps, in particular to a portable LED project lamp lifting mechanism which comprises a supporting frame and an adjusting assembly, the supporting frame is connected with a project lamp, the project lamp is composed of a fixed plate body, a movable plate body and a lamp body, the fixed plate body is connected to the supporting frame, the movable plate body is connected to the fixed plate body in a sliding mode, and the lamp body is connected to the movable plate body in a sliding mode. A supporting shaft rotationally connected with a bearing of the lamp body is connected to the movable plate body, the adjusting assembly is connected to the lamp body, and the adjusting assembly comprises a lifting assembly and a leveling assembly. According to the LED lamp, the height of the lamp body can be adjusted through the movement of the sliding seat on the movable plate body along the guide rod, the fixed ratchet bar and the movable ratchet bar connected to the sliding seat are matched with each other to prevent the lamp body from returning, and the lamp body can rotate through the supporting shaft to change the included angle between the lamp body and the ground; and self-locking is carried out through rotation of the cam and matching of the cam and the fixing rod, so that the lamp is kept at a certain angle, and the required lighting condition is provided.

Description

Technical Field

[0001] This utility model relates to the field of LED floodlight technology, specifically to a portable LED floodlight lifting mechanism. Background Technology

[0002] A floodlight is a lighting fixture designed to provide illumination on a surface higher than the surrounding environment. It is also known as a spotlight. Typically, it can be aimed in any direction and has a structure unaffected by weather conditions. It is mainly used for large-area work sites, building outlines, stadiums, overpasses, monuments, parks, and flower beds.

[0003] Chinese Patent Publication No. CN221666002U discloses an automatic floodlight, including a floodlight body and a lamp holder. The lamp holder has a receiving groove with an opening at the top, and a bracket is disposed within the receiving groove. A lifting structure for raising and lowering the bracket is disposed within the lamp holder. The bracket is U-shaped, and rotating shafts are fixed to both sides of the floodlight body. The rotating shafts are connected to the bracket via bearings. Rotating structures for rotating the floodlight body are installed on both sides of the bracket. This automatic floodlight has the advantages of high stability, ease of use, and high reliability.

[0004] However, in the above technical solution, the height of the floodlight is adjusted by moving the nut block along the vertical direction of the screw, and the lighting angle of the lamp is adjusted by the gear set. However, in some usage scenarios, such as in the sloping state of grass or mountains, it is necessary to illuminate a fixed area, and the tilt of the lamp is not easy to adjust. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a portable LED floodlight lifting mechanism.

[0006] The technical solution of this utility model is as follows: A portable LED floodlight lifting mechanism includes a support frame connected to the floodlight. The floodlight consists of a fixed plate, a movable plate, and a lamp body. The fixed plate is connected to the support frame, and the movable plate is slidably connected to the fixed plate. A support shaft connected to the lamp body is mounted on the movable plate. An adjustment component is connected to the lamp body and includes a lifting component and a leveling component. The lifting component is positioned between the fixed plate and the movable plate, and the leveling component is positioned between the lamp body and the movable plate. The leveling component includes a fixed rod, a cam, and an adjusting handle. The fixed rod is connected to the lamp body, and the movable plate has a guide groove slidably connected to the fixed rod. The cam is rotatably connected to the fixed rod, and the adjusting handle is connected to the cam. The cam is slidably connected to the movable plate. In use, the adjusting handle drives the cam to rotate around the fixed rod. The cam and the movable plate are geometrically self-locked to limit the angle change between the movable plate and the lamp body.

[0007] Preferably, the leveling assembly also includes a bubble level, which is connected to the movable plate.

[0008] Preferably, the lifting assembly includes two guide rods arranged in parallel, with both ends of the guide rods connected to grooves on the fixed plate; a sliding seat, the number of which corresponds to the guide rods, the sliding seat being slidably connected to the guide rods and connected to the movable plate; and a limiting assembly disposed between the sliding seat and the fixed plate. In the use state, the limiting assembly engages with the sliding groove to restrict its movement along the direction of the guide rod.

[0009] Preferably, the limiting component includes a fixed ratchet rack, the number of which corresponds to the number of sliding seats, and the fixed ratchet racks are connected to the sliding seats; a movable ratchet rack, the number of which corresponds to the number of fixed ratchet racks, one end of which is rotatably connected to the fixed plate; an elastic element, the number of which corresponds to the number of movable ratchet racks, the two ends of which are respectively connected to the movable ratchet racks and the fixed plate; and an adjusting plate, the number of which corresponds to the number of movable ratchet racks, the adjusting plate being connected to one end of the movable ratchet rack, and a notch for the adjusting plate to pass through being provided on the fixed plate.

[0010] Preferably, the support frame consists of a fixed frame and a rotating frame, both of which are U-shaped, and are rotatably connected at one end.

[0011] Preferably, the fixed plate has multiple heat dissipation fins connected to the side away from the movable plate.

[0012] Preferably, both the fixed plate and the movable plate are provided with heat dissipation honeycomb holes.

[0013] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0014] In this invention, the height of the lamp body can be adjusted by the movement of the sliding seat on the movable plate along the guide rod. The fixed ratchet connected to the sliding seat and the movable ratchet cooperate to prevent it from retracting. The lamp body can rotate through the support shaft to change the angle between itself and the ground, and self-locking is achieved through the rotation of the cam and the cooperation of the fixed rod, so as to keep itself at a certain angle and thus provide the required lighting conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the initial state of this utility model;

[0016] Figure 2 This is a schematic diagram of the usage state of this utility model;

[0017] Figure 3 for Figure 2 A cross-sectional view;

[0018] Figure 4 for Figure 3 Enlarged view of the structure at point A.

[0019] Reference numerals in the attached drawings: 1. Support frame; 2. Fixed plate; 3. Movable plate; 4. Lamp body; 5. Support shaft; 6. Fixed rod; 7. Cam; 8. Adjusting handle; 9. Bubble level; 10. Guide rod; 11. Sliding seat; 12. Fixed ratchet rack; 13. Movable ratchet rack; 14. Elastic element; 15. Adjusting plate; 16. Fixed frame; 17. Rotating frame; 18. Heat dissipation fins. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-4 As shown, this utility model proposes a portable LED floodlight lifting mechanism, including a support frame 1 and an adjustment assembly. The support frame 1 is connected to the floodlight, which consists of a fixed plate 2, a movable plate 3, and a lamp body 4. The fixed plate 2 is connected to the support frame 1, and the movable plate 3 is slidably connected to the fixed plate 2. A support shaft 5, which is rotatably connected to the bearing of the lamp body 4, is connected to the movable plate 3. The adjustment assembly is connected to the lamp body 4 and includes a lifting assembly and a leveling assembly. The lifting assembly is disposed between the fixed plate 2 and the movable plate 3. The leveling component is located between the lamp body 4 and the movable plate 3. The leveling component includes a fixed rod 6, a cam 7, and an adjusting handle 8. The fixed rod 6 is connected to the lamp body 4. The movable plate 3 has a guide groove that is slidably connected to the fixed rod 6. The cam 7 is rotatably connected to the fixed rod 6. The adjusting handle 8 is connected to the cam 7. The cam 7 is slidably connected to the movable plate 3. When the leveling component is in use, the adjusting handle 8 drives the cam 7 to rotate around the fixed rod 6. The cam 7 and the movable plate 3 are geometrically self-locked to limit the angle change between the movable plate 3 and the lamp body 4.

[0022] Example 2

[0023] like Figures 2-4 As shown, the present invention proposes a portable LED floodlight lifting mechanism. Compared with Embodiment 1, this embodiment describes the detailed structure of the adjustment component. The leveling component also includes a bubble level 9, which is connected to the upper surface of the movable plate 3.

[0024] The lifting assembly includes guide rods 10, sliding seats 11, and a limiting assembly. Two guide rods 10 are arranged in parallel, and both ends of the guide rods 10 are connected to grooves opened on the fixed plate 2. The number of sliding seats 11 corresponds to the number of guide rods 10. The sliding seats 11 are slidably connected to the guide rods 10 and connected to the movable plate 3. The limiting assembly is set between the sliding seats 11 and the fixed plate 2. When the limiting assembly is in use, the limiting assembly engages with the sliding groove to restrict its movement along the direction of the guide rods 10.

[0025] The limiting assembly includes a fixed ratchet 12, a movable ratchet 13, an elastic element 14, and an adjusting plate 15. The number of fixed ratchet 12 corresponds to the number of sliding seats 11, and the fixed ratchet is connected to the sliding seats 11. The number of movable ratchet 13 corresponds to the number of fixed ratchet 12, and one end of the movable ratchet 13 is rotatably connected to the fixed plate 2. The number of elastic elements 14 corresponds to the number of movable ratchet 13, and both ends of the elastic element 14 are connected to the movable ratchet 13 and the fixed plate, respectively. The elastic element 14 is a spring sheet. The adjusting plate 15 is connected to one end of the movable ratchet 13, and a notch is provided on the fixed plate 2 for the adjusting plate 15 to pass through.

[0026] In an optional embodiment, the support frame 1 consists of a fixed frame 16 and a rotating frame 17. Both the fixed frame 16 and the rotating component are U-shaped, and the fixed frame 16 and the rotating frame 17 are rotatably connected at one end.

[0027] In an optional embodiment, a plurality of heat dissipation fins 18 are connected to the side of the fixed plate 2 away from the movable plate 3; the heat dissipation fins 18 can improve the heat dissipation capacity of the fixed plate 2 and prevent the fixed plate 2 and the movable plate 3 from affecting the heat dissipation of the lamp body 4.

[0028] In an optional embodiment, both the fixed plate 2 and the movable plate 3 are provided with heat dissipation honeycomb holes; the heat dissipation honeycomb holes increase the contact area between the fixed plate 2 and the movable plate 3 and the air to improve heat dissipation.

[0029] In summary, when using this utility model, the shape of the support frame 1 makes it easy for users to grip and carry. When placed, the rotating frame 17 is rotated, and its damping shaft keeps the fixed frame 16 and the rotating frame 17 at a fixed angle. The U-shaped shape allows the fixed frame 16 to have a larger contact area with the ground, maintaining its balance. When placed in an outdoor environment, such as on uneven surfaces like grass or mountains, and when the lamp body 4 needs to illuminate a limited area, pulling the notch or handle on the lamp body 4 moves the lamp body 4 and the two sliding seats 11 along the guide rod 10. The fixed ratchet plate 12 also moves synchronously. The fixed ratchet plate 12 moves upward, pushing the movable ratchet plate 13 to compress the elastic element 14. The spring-loaded sliding ratchet plate 13 returns to its original position, thus preventing the fixed ratchet plate 12 from retracting. This allows the height of the lamp body 4 to be adjusted. After the height is adjusted, the adjustment assembly between the fixed plate and the movable plate 3 also moves. Rotating the adjustment handle 8 causes the cam 7 to rotate, and the protrusion on the cam 7 moves away from the movable plate 4. At this time, the lamp body 4 can be rotated about the central axis of the support shaft 5 by pulling the adjustment handle 8. During its rotation, the lamp body 4 can be gradually kept parallel to the ground by observing the bubble level 9. After adjustment, rotating the adjustment handle 8 causes the cam 7 to rotate. The protrusion on the cam 7 contacts the movable plate 3, restricting the rotation of the lamp body 4 about the support shaft 5 and keeping it at a fixed angle.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A portable LED floodlight lifting mechanism, characterized in that, include The support frame (1) is connected to the floodlight. The floodlight consists of a fixed plate (2), a movable plate (3), and a lamp body (4). The fixed plate (2) is connected to the support frame (1), and the movable plate (3) is slidably connected to the fixed plate (2). The movable plate (3) is connected to a support shaft (5) that is rotatably connected to the lamp body (4). An adjustment component is connected to the lamp body (4). The adjustment component includes a lifting component and a leveling component. The lifting component is located between the fixed plate (2) and the movable plate (3). The leveling component is located between the lamp body (4) and the movable plate (3). The leveling assembly includes a fixed rod (6), a cam (7), and an adjusting handle (8). The fixed rod (6) is connected to the lamp body (4). The movable plate (3) has a guide groove that is slidably connected to the fixed rod (6). The cam (7) is rotatably connected to the fixed rod (6). The adjusting handle (8) is connected to the cam (7). The cam (7) is slidably connected to the movable plate (3). When the leveling assembly is in use, the adjusting handle (8) drives the cam (7) to rotate around the fixed rod (6). The cam (7) and the movable plate (3) are geometrically self-locked to limit the angle change between the movable plate (3) and the lamp body (4).

2. The portable LED floodlight lifting mechanism according to claim 1, characterized in that, The leveling components also include A bubble level (9) is connected to a movable plate (3).

3. The portable LED floodlight lifting mechanism according to claim 1, characterized in that, Lifting components include There are two guide rods (10) arranged in parallel, and the two ends of the guide rods (10) are connected to the grooves opened on the fixed plate (2); The number of sliding seats (11) corresponds to the number of guide rods (10). The sliding seats (11) are slidably connected to the guide rods (10) and are connected to the movable plate (3). The limiting component is disposed between the sliding seat (11) and the fixed plate (2); when the limiting component is in use, the limiting component engages with the sliding groove to restrict its movement along the guide rod (10).

4. The portable LED floodlight lifting mechanism according to claim 3, characterized in that, Limiting components include Fixed ratchet racks (12) are provided, the number of which corresponds to the number of sliding seats (11), and the fixed racks are connected to the sliding seats (11); The number of movable ratchet racks (13) corresponds to that of fixed ratchet racks (12), and one end of the movable ratchet rack (13) is rotatably connected to the fixed plate (2); The number of elastic elements (14) corresponds to the number of movable ratchet racks (13), and the two ends of the elastic elements (14) are connected to the movable ratchet racks (13) and the fixed plate, respectively. Adjustment plates (15) are provided, the number of which corresponds to the number of movable ratchet racks (13). The adjustment plates (15) are connected to one end of the movable ratchet racks (13), and the fixed plate body (2) has a notch through which the adjustment plates (15) pass.

5. The portable LED floodlight lifting mechanism according to claim 1, characterized in that, The support frame (1) consists of a fixed frame (16) and a rotating frame (17). Both the fixed frame (16) and the rotating component are U-shaped, and the fixed frame (16) and the rotating frame (17) are rotatably connected at one end.

6. The portable LED floodlight lifting mechanism according to claim 1, characterized in that, The fixed plate (2) is connected to multiple heat dissipation fins (18) on the side away from the movable plate (3).

7. The portable LED floodlight lifting mechanism according to claim 1, characterized in that, Both the fixed plate (2) and the movable plate (3) are provided with heat dissipation honeycomb holes.

Images