Height-adjustable lamp device

Abstract

The utility model provides a height-adjustable lamp device, which relates to the technical field of lamps and comprises a fixing plate, a fixing cavity is mounted at the bottom end of the fixing plate, an adjusting mechanism is arranged in the fixing cavity, a mounting cavity is mounted below the adjusting mechanism, a mounting mechanism is arranged in the mounting cavity, and the adjusting mechanism is arranged in the mounting cavity. A lamp body is mounted at the bottom end of the mounting cavity, a cleaning mechanism is arranged on one side of the lamp body, an electromagnetic sliding block is arranged on the outer side wall of an electromagnetic sliding rail, an electric telescopic rod is mounted below the electromagnetic sliding block, and a cleaning brush is mounted at the rear end of the electric telescopic rod. The cleaning mechanism is arranged on one side of the lamp body, the lamp body can be cleaned and dust on the surface of the lamp body can be swept through mutual cooperation of an electromagnetic sliding rail, an electromagnetic sliding block, an electric telescopic rod and a cleaning brush of the cleaning mechanism, so that the lamp body is more usable during use, and the lighting effect is better.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a height-adjustable lighting device. Background Technology

[0002] With economic development and continuous improvement of technology, my country's lighting industry has developed very rapidly. Lighting fixtures are used more and more in daily life, and their production is becoming more and more exquisite, with more and more functions. The use of lighting fixtures has greatly facilitated people's lives.

[0003] For example, application number CN217154128U discloses "a lamp fixture", which specifically discloses: a light-emitting opening is provided on the first side of the lamp housing body, and at least two snap-fit ​​grooves are provided on the lamp housing body respectively located on both sides in the width direction. The snap-fit ​​grooves are arranged along the length direction of the lamp housing body, and at least one end of the snap-fit ​​groove along the length direction has a slot opening; a light-emitting part is provided in the lamp housing body; a sealing part is provided along the edge of the light-emitting opening; a light-transmitting part is provided on the sealing part; and two pressure frames are provided with a locking part for the light-emitting opening. At least one snap-fit ​​sliding strip is provided for the corresponding slot, and the pressure frame is provided with a pressure strip for pressing the light-transmitting part; in the installed state, the two pressure frames slide into and snap into the corresponding snap-fit ​​slots through the snap-fit ​​sliding strips respectively, the pressure strip presses the light-transmitting part, and the light-transmitting part cooperates with the sealing part to seal the light-emitting opening, by setting the sealing part on the light-emitting opening of the lamp housing body and covering the sealing part with the light-transmitting part; snap-fit ​​slots are provided on both sides of the lamp housing body, one end of the snap-fit ​​slot has a snap-fit ​​opening, and snap-fit ​​sliding strips and pressure strips are provided on the two corresponding pressure frames. During installation, the sealing part and the light-transmitting part are simply placed sequentially on the lamp housing body. Then, the pressure frame is slid into the corresponding slot opening through the snap-fit ​​slider. After sliding in, the pressure strip on the pressure frame presses against the light-transmitting part, causing the light-transmitting part to press against the sealing part to complete the seal of the light-emitting opening. The installation steps are simple and the installation process is few, which can effectively improve production efficiency and solve the problem of low production efficiency caused by the complex installation process of existing lamps. However, in the above technology, when using the lamp, it is inconvenient to automatically clean the dust on the lamp surface. As a result, the lamp surface tends to accumulate a lot of dust after long-term use, which affects the lighting effect of the lamp and makes the lamp's performance poor. Therefore, this utility model proposes a height-adjustable lamp device to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a height-adjustable lighting device, which solves the problem in the prior art where it is inconvenient to conveniently adjust the height of the lighting fixture, resulting in poor lighting performance.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a height-adjustable lamp device, including a fixing plate, a fixing cavity installed at the bottom end of the fixing plate, an adjustment mechanism provided inside the fixing cavity, an installation cavity installed below the adjustment mechanism, an installation mechanism provided inside the installation cavity, a lamp body installed at the bottom end of the installation cavity, and a cleaning mechanism provided on one side of the lamp body;

[0006] The cleaning mechanism includes an electromagnetic slide rail, an electromagnetic slider, an electric telescopic rod, and a cleaning brush. The electromagnetic slide rail is installed at the front end above the lamp body. An electromagnetic slider is provided on the outer side wall of the electromagnetic slide rail. An electric telescopic rod is installed below the electromagnetic slider. A cleaning brush is installed at the rear end of the electric telescopic rod.

[0007] A further improvement is made in that: the adjustment mechanism includes a mounting plate, a servo motor, a drive gear, a rotating sleeve, a transmission gear ring, a limiting ring, a limiting groove, a screw, a limiting rod, and a limiting sleeve. The mounting plate is installed on the lower side of one side of the fixed cavity. The servo motor is installed at the top of the mounting plate, and the drive gear is installed at the bottom of the mounting plate. The rotating sleeve passes through the lower part of the interior of the fixed cavity. A transmission gear ring is provided on the outer wall of the rotating sleeve outside the fixed cavity. The transmission gear ring meshes with the drive gear. A screw passes through the interior of the rotating sleeve. The bottom end of the screw is connected to the top of the mounting cavity. The limiting ring is installed on the lower part of the inner wall of the fixed cavity. The limiting groove is provided on the outer wall of the rotating sleeve. The limiting ring and the limiting groove are mutually adapted. The limiting rod is installed on both sides inside the fixed cavity. A limiting sleeve is provided on the outer wall of the limiting rod. One end of the limiting sleeve is connected to one end of the screw.

[0008] A further improvement is that the cross-section of the limiting rod is smaller than the cross-section of the limiting sleeve, and the limiting rod and the limiting sleeve form a sliding structure.

[0009] A further improvement is made in that: the installation mechanism includes a connecting block, a fixing groove, a fixing block, a rotating wheel, a first bevel gear, a second bevel gear, a threaded rod, a threaded sleeve, a hinged rod, and a guide structure. The connecting block is installed inside the installation cavity. The connecting block has a fixing groove inside, and the fixing groove has a fixing block inside. A rotating wheel is installed on one side of the installation cavity. The first bevel gear is installed on one side inside the installation cavity. One end of the rotating wheel is connected to one end of the first bevel gear. A second bevel gear meshes above the first bevel gear. A threaded rod is installed on one end of the second bevel gear. The threads at both ends of the threaded rod are in opposite directions. Threaded sleeves are symmetrically arranged on the outer wall of the threaded rod. A hinged rod is hinged to one side of the threaded sleeve. One side of the hinged rod is hinged to one side of the fixing block.

[0010] A further improvement is that the cross-section of the fixing groove is larger than the cross-section of the fixing block, and the fixing groove and the fixing block form an engaging structure.

[0011] A further improvement is that the guiding structure includes a guide groove and a guide block. The guide groove is located at the bottom of the mounting cavity, and a guide block is provided inside the guide groove. One end of the guide block is connected to one end of the fixing block.

[0012] The beneficial effects of this utility model are as follows: By providing a cleaning mechanism on one side of the lamp body, the lamp body can be cleaned by the cooperation of the electromagnetic slide rail, electromagnetic slider, electric telescopic rod, and cleaning brush of the cleaning mechanism, and dust on the surface of the lamp body can be swept away, making the lamp body more durable and improving the lighting effect; by providing an adjustment mechanism inside the fixed cavity, the installation plate, servo motor, drive gear, rotating sleeve, transmission gear ring, limit ring, limit groove, screw, limit rod, and limit sleeve of the adjustment mechanism can drive the installation cavity and the lamp body through the screw. The main body is easily movable, allowing for efficient height adjustment based on actual conditions, resulting in better performance and significantly improving practicality. An installation mechanism within the mounting cavity, utilizing connecting blocks, fixing grooves, fixing blocks, rotating wheels, first bevel gears, second bevel gears, threaded rods, threaded sleeves, hinge rods, guide grooves, and guide blocks, enables convenient disassembly and installation of the lamp body. This facilitates easier and more efficient maintenance or replacement, further enhancing usability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a front view cross-sectional structural diagram of the adjustment mechanism of this utility model;

[0015] Figure 3 This is a front view cross-sectional structural diagram of the installation mechanism of this utility model;

[0016] Figure 4 For the present utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0017] The components include: 1. Fixing plate; 2. Fixing cavity; 3. Mounting cavity; 4. Lamp body; 5. Mounting plate; 6. Servo motor; 7. Drive gear; 8. Rotating sleeve; 9. Transmission gear ring; 10. Limiting ring; 11. Limiting groove; 12. Screw; 13. Limiting rod; 14. Limiting sleeve; 15. Connecting block; 16. Fixing groove; 17. Fixing block; 18. Rotating wheel; 19. First bevel gear; 20. Second bevel gear; 21. Threaded rod; 22. Threaded sleeve; 23. Hinge rod; 24. Guide groove; 25. Guide block; 26. Electromagnetic slide rail; 27. Electromagnetic slider; 28. Electric telescopic rod; 29. ​​Cleaning brush. Detailed Implementation

[0018] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0019] Example 1

[0020] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a height-adjustable lighting device, including a fixing plate 1. A fixing cavity 2 is installed at the bottom end of the fixing plate 1. An adjustment mechanism is provided inside the fixing cavity 2. An installation cavity 3 is installed below the adjustment mechanism. An installation mechanism is provided inside the installation cavity 3. A lighting body 4 is installed at the bottom end of the installation cavity 3.

[0021] The cleaning mechanism includes an electromagnetic slide rail 26, an electromagnetic slider 27, an electric telescopic rod 28, and a cleaning brush 29. The electromagnetic slide rail 26 is installed at the front end above the lamp body 4. An electromagnetic slider 27 is provided on the outer wall of the electromagnetic slide rail 26. An electric telescopic rod 28 is installed below the electromagnetic slider 27. The cleaning brush 29 is installed at the rear end of the electric telescopic rod 28. In use, the electric telescopic rod 28 is activated to move the cleaning brush 29 downward, so that the surface of the cleaning brush 29 comes into contact with the surface of the lamp body 4. Then, the electromagnetic slide rail 26 is activated to move the electromagnetic slider 27, which in turn moves the cleaning brush 29. The cleaning brush 29 is used to clean the surface of the lamp body 4, making the lamp body 4 more effective during use.

[0022] The adjustment mechanism includes a mounting plate 5, a servo motor 6, a drive gear 7, a rotating sleeve 8, a transmission gear ring 9, a limiting ring 10, a limiting groove 11, a screw 12, a limiting rod 13, and a limiting sleeve 14. The mounting plate 5 is installed on the lower side of one side of the fixed cavity 2. The servo motor 6 is installed at the top of the mounting plate 5, and the drive gear 7 is installed at the bottom of the mounting plate 5. The rotating sleeve 8 passes through the lower part of the fixed cavity 2. The transmission gear ring 9 is provided on the outer wall of the rotating sleeve 8 outside the fixed cavity 2. Ring 9 meshes with drive gear 7. A screw 12 passes through the interior of the rotating sleeve 8, with its bottom end connected to the top end of the mounting cavity 3. A limiting ring 10 is installed below the inner wall of the fixed cavity 2. A limiting groove 11 is located on the outer wall of the rotating sleeve 8, and the limiting ring 10 and the limiting groove 11 are mutually compatible. Limiting rods 13 are installed on both sides inside the fixed cavity 2, and limiting sleeves 14 are provided on the outer wall of the limiting rods 13. One end of the limiting sleeve 14 is connected to one end of the screw 12. The cross-section of the limiting rod 13 is smaller than that of the limiting sleeve 14. The limiting rod 13 and the limiting sleeve 14 form a sliding structure. In use, the servo motor 6 is started to drive the drive gear 7 to rotate. Since the drive gear 7 meshes with the transmission gear ring 9, under the limiting ring 10 and the limiting groove 11, the transmission gear ring 9 drives the rotating sleeve 8 to rotate. Since the rotating sleeve 8 and the screw 12 are threadedly connected, under the limiting rod 13 and the limiting sleeve 14, the rotating sleeve 8 drives the screw... 12 is moved, and the user adjusts the lamp body 4 to an appropriate height according to the actual situation, so that the lamp body 4 can be used better, thereby greatly improving the practicality of the lamp when in use. By using the cooperation between the limiting ring 10 and the limiting groove 11, the rotating sleeve 8 can be limited when rotating, so that the rotating sleeve 8 is more stable when rotating. By using the cooperation between the limiting rod 13 and the limiting sleeve 14, the screw 12 can be limited when moving, so that the screw 12 is more stable when moving.

[0023] Example 2

[0024] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a height-adjustable lighting device, including a fixing plate 1. A fixing cavity 2 is installed at the bottom end of the fixing plate 1. An adjustment mechanism is provided inside the fixing cavity 2. An installation cavity 3 is installed below the adjustment mechanism. An installation mechanism is provided inside the installation cavity 3. A lighting body 4 is installed at the bottom end of the installation cavity 3.

[0025] The cleaning mechanism includes an electromagnetic slide rail 26, an electromagnetic slider 27, an electric telescopic rod 28, and a cleaning brush 29. The electromagnetic slide rail 26 is installed at the front end above the lamp body 4. An electromagnetic slider 27 is provided on the outer wall of the electromagnetic slide rail 26. An electric telescopic rod 28 is installed below the electromagnetic slider 27. The cleaning brush 29 is installed at the rear end of the electric telescopic rod 28. In use, activating the electric telescopic rod 28 moves the cleaning brush 29 downwards, causing its surface to contact the surface of the lamp body 4. Then, activating the electromagnetic slide rail 26 moves the electromagnetic slider 27, which in turn moves the cleaning brush 29, cleaning the surface of the lamp body 4 and improving its performance during use.

[0026] The adjustment mechanism includes a mounting plate 5, a servo motor 6, a drive gear 7, a rotating sleeve 8, a transmission gear ring 9, a limiting ring 10, a limiting groove 11, a screw 12, a limiting rod 13, and a limiting sleeve 14. The mounting plate 5 is installed on the lower side of one side of the fixed cavity 2. The servo motor 6 is installed at the top of the mounting plate 5, and the drive gear 7 is installed at the bottom of the mounting plate 5. The rotating sleeve 8 passes through the lower part of the fixed cavity 2. The transmission gear ring 9 is provided on the outer wall of the rotating sleeve 8 outside the fixed cavity 2. Ring 9 meshes with drive gear 7. A screw 12 passes through the interior of the rotating sleeve 8, with its bottom end connected to the top end of the mounting cavity 3. A limiting ring 10 is installed below the inner wall of the fixed cavity 2. A limiting groove 11 is located on the outer wall of the rotating sleeve 8, and the limiting ring 10 and the limiting groove 11 are mutually compatible. Limiting rods 13 are installed on both sides inside the fixed cavity 2, and limiting sleeves 14 are provided on the outer wall of the limiting rods 13. One end of the limiting sleeve 14 is connected to one end of the screw 12. The cross-section of the limiting rod 13 is smaller than that of the limiting sleeve 14. The limiting rod 13 and the limiting sleeve 14 form a sliding structure. In use, the servo motor 6 is started to drive the drive gear 7 to rotate. Since the drive gear 7 meshes with the transmission gear ring 9, under the limiting ring 10 and the limiting groove 11, the transmission gear ring 9 drives the rotating sleeve 8 to rotate. Since the rotating sleeve 8 and the screw 12 are threadedly connected, under the limiting rod 13 and the limiting sleeve 14, the rotating sleeve 8 drives the screw... 12 is moved, and the user adjusts the lamp body 4 to an appropriate height according to the actual situation, so that the lamp body 4 can be used better, thereby greatly improving the practicality of the lamp when in use. By using the cooperation between the limiting ring 10 and the limiting groove 11, the rotating sleeve 8 can be limited when rotating, so that the rotating sleeve 8 is more stable when rotating. By using the cooperation between the limiting rod 13 and the limiting sleeve 14, the screw 12 can be limited when moving, so that the screw 12 is more stable when moving.

[0027] The installation mechanism includes a connecting block 15, a fixing groove 16, a fixing block 17, a rotating wheel 18, a first bevel gear 19, a second bevel gear 20, a threaded rod 21, a threaded sleeve 22, a hinge rod 23, and a guide structure. The connecting block 15 is installed inside the installation cavity 3. The fixing groove 16 is provided inside the connecting block 15, and the fixing block 17 is provided inside the fixing groove 16. The rotating wheel 18 is installed on one side of the installation cavity 3. The first bevel gear 19 is installed on one side inside the installation cavity 3, and one end of the rotating wheel 18 is connected to one end of the first bevel gear 19. A second bevel gear 20 meshes with the first bevel gear 19 above it. A threaded rod 21 is installed at one end of the second bevel gear 20. The threads at both ends of the threaded rod 21 are in opposite directions. Threaded sleeves 22 are symmetrically arranged on the outer wall of the threaded rod 21. A hinge rod 23 is hinged to one side of the threaded sleeve 22. One side of the hinge rod 23 is hinged to one side of the fixing block 17. The cross-section of the fixing groove 16 is larger than the cross-section of the fixing block 17. The fixing groove 16 and the fixing block 17 form a locking structure. In use, the lamp body 4 is removed, and the connecting block 15 is placed into the mounting box. Inside cavity 3, the rotating wheel 18 drives the first bevel gear 19 to rotate. Since the first bevel gear 19 and the second bevel gear 20 mesh with each other, the second bevel gear 20 drives the threaded rod 21 to rotate, which in turn drives the two threaded sleeves 22 to move, and then drives the hinge rod 23 to move. Therefore, under the limitation of the guide groove 24 and the guide block 25, the hinge rod 23 drives the fixed block 17 to move, moving the fixed block 17 into the fixed groove 16, limiting the position of the connecting block 15, and completing the convenient installation of the lamp body 4. When it is necessary to adjust the lamp body 4, the lamp body 4 can be installed in a convenient manner. When the lamp body 4 is replaced or repaired, the reverse rotating wheel 18 drives the first bevel gear 19 to reverse, which in turn drives the threaded rod 21 to reverse, thereby driving the two threaded sleeves 22 to move to both sides. The hinge rod 23 is used to remove the fixing block 17 from the inside of the fixing groove 16. At this time, the connecting block 15 can be removed from the inside of the mounting cavity 3, and the lamp body 4 can be easily removed for inspection or replacement. Then, the above operation is repeated to complete the installation of the lamp body 4, making the lamp body 4 more convenient and efficient to repair or replace, thereby greatly improving the convenience of the lamp when in use.

[0028] The guiding structure includes a guide groove 24 and a guide block 25. The guide groove 24 is located at the bottom of the mounting cavity 3. The guide block 25 is located inside the guide groove 24. One end of the guide block 25 is connected to one end of the fixing block 17. In use, the guide groove 24 and the guide block 25 cooperate with each other to guide the fixing block 17 when it moves, making the fixing block 17 more stable when it moves.

[0029] Working principle: The user first removes the lamp body 4, places the connecting block 15 into the mounting cavity 3, and then rotates the rotating wheel 18 to drive the first bevel gear 19 to rotate. Since the first bevel gear 19 and the second bevel gear 20 mesh with each other, the second bevel gear 20 drives the threaded rod 21 to rotate, which in turn drives the two threaded sleeves 22 to move, and then drives the hinge rod 23 to move. Therefore, under the limitation of the guide groove 24 and the guide block 25, the hinge rod 23 drives the fixed block 17 to move. The fixing block 17 is moved into the fixing groove 16 to limit the position of the connecting block 15, thus completing the convenient installation of the lamp body 4. Then, the servo motor 6 is started to drive the drive gear 7 to rotate. Since the drive gear 7 and the transmission gear ring 9 are meshed with each other, under the limitation of the limiting ring 10 and the limiting groove 11, the transmission gear ring 9 drives the rotating sleeve 8 to rotate. Since the rotating sleeve 8 and the screw 12 are threadedly connected, under the limitation of the limiting rod 13 and the limiting sleeve 14, the rotating sleeve 8 drives the screw 12 to rotate. The user can adjust the lamp body 4 to an appropriate height according to the actual situation to improve its performance. When the lamp body 4 needs to be replaced or repaired, the reverse rotating wheel 18 drives the first bevel gear 19 to reverse, which in turn drives the threaded rod 21 to reverse, thereby moving the two threaded sleeves 22 to both sides. The hinge rod 23 is used to remove the fixing block 17 from the inside of the fixing groove 16. At this time, the connecting block 15 can be removed from the inside of the mounting cavity 3, and the lamp body 4 can be easily removed for inspection or replacement. The above operation is repeated to complete the installation of the lamp body 4. When the surface of the lamp body 4 needs to be cleaned after long-term use, the electric telescopic rod 28 is activated to move the cleaning brush 29 downward, so that the surface of the cleaning brush 29 comes into contact with the surface of the lamp body 4. Then, the electromagnetic slide rail 26 is activated to move the electromagnetic slider 27, which in turn moves the cleaning brush 29. The cleaning brush 29 is used to clean the surface of the lamp body 4, making the lamp body 4 perform better in use.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A height-adjustable luminaire device comprising a fixing plate (1), characterized in that: The bottom end of the fixed plate (1) is provided with a fixed cavity (2), the inside of the fixed cavity (2) is provided with an adjusting mechanism, the lower part of the adjusting mechanism is provided with a mounting cavity (3), the inside of the mounting cavity (3) is provided with a mounting mechanism, the bottom end of the mounting cavity (3) is provided with a lamp body (4), one side of the lamp body (4) is provided with a cleaning mechanism; The cleaning mechanism comprises an electromagnetic sliding rail (26), an electromagnetic sliding block (27), an electric telescopic rod (28) and a cleaning brush (29), the electromagnetic sliding rail (26) is installed at the front end above the lamp body (4), the outer side wall of the electromagnetic sliding rail (26) is provided with the electromagnetic sliding block (27), the lower part of the electromagnetic sliding block (27) is provided with the electric telescopic rod (28), and the rear end of the electric telescopic rod (28) is provided with the cleaning brush (29).

2. A height adjustable luminaire apparatus as claimed in claim 1, wherein: The adjusting mechanism comprises a mounting plate (5), a servo motor (6), a driving gear (7), a rotating sleeve (8), a transmission gear ring (9), a limiting ring (10), a limiting groove (11), a screw rod (12), a limiting rod (13) and a limiting sleeve (14), the mounting plate (5) is installed below one side of the fixed cavity (2), the top end of the mounting plate (5) is provided with the servo motor (6), the bottom end of the mounting plate (5) is provided with the driving gear (7), the lower part of the inside of the fixed cavity (2) is penetrated through the rotating sleeve (8), the outer side wall of the rotating sleeve (8) located outside the fixed cavity (2) is provided with the transmission gear ring (9), the transmission gear ring (9) and the driving gear (7) are in meshing relationship, the inside of the rotating sleeve (8) is penetrated through the screw rod (12), the bottom end of the screw rod (12) is connected with the top end of the mounting cavity (3), the lower part of the inner wall of the fixed cavity (2) is provided with the limiting ring (10), the outer wall of the rotating sleeve (8) is provided with the limiting groove (11), the limiting ring (10) and the limiting groove (11) are matched with each other, the two sides of the inside of the fixed cavity (2) are provided with the limiting rods (13), the outer side wall of the limiting rod (13) is provided with the limiting sleeve (14), and one end of the limiting sleeve (14) is connected with one end of the screw rod (12).

3. A height adjustable luminaire apparatus as claimed in claim 2, wherein: The cross section of the limiting rod (13) is smaller than the cross section of the limiting sleeve (14), and the limiting rod (13) and the limiting sleeve (14) form a sliding structure.

4. The height adjustable luminaire apparatus of claim 1, wherein: The mounting mechanism comprises a connecting block (15), a fixing groove (16), a fixing block (17), a rotating wheel (18), a first bevel gear (19), a second bevel gear (20), a threaded rod (21), a threaded sleeve (22), a hinged rod (23) and a guide structure, the connecting block (15) is mounted in the inside of the mounting cavity (3), the inside of the connecting block (15) is provided with the fixing groove (16), the inside of the fixing groove (16) is provided with the fixing block (17), one side of the mounting cavity (3) is mounted with the rotating wheel (18), the first bevel gear (19) is mounted on one side of the inside of the mounting cavity (3), one end of the rotating wheel (18) is connected with one end of the first bevel gear (19), the first bevel gear (19) is engaged with the second bevel gear (20) above, one end of the second bevel gear (20) is mounted with the threaded rod (21), the threaded directions of the two ends of the threaded rod (21) are opposite, the outer side wall of the threaded rod (21) is symmetrically provided with the threaded sleeve (22), one side of the threaded sleeve (22) is hinged with the hinged rod (23), one side of the hinged rod (23) is hinged with one side of the fixing block (17).

5. A height adjustable luminaire apparatus as claimed in claim 4, wherein: The cross section of the fixing groove (16) is larger than the cross section of the fixing block (17), and the fixing groove (16) and the fixing block (17) form a clamping structure.

6. A height adjustable luminaire apparatus as claimed in claim 5, wherein: The guide structure comprises a guide groove (24) and a guide block (25), the guide groove (24) is arranged at the bottom end of the inside of the mounting cavity (3), the inside of the guide groove (24) is provided with the guide block (25), one end of the guide block (25) is connected with one end of the fixing block (17).

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