Adjustable lighting lamp base

Abstract

The utility model discloses an adjustable lighting lamp base in the technical field of anechoic chamber lighting, which comprises a bottom plate mounted between included angles of anechoic wedges, connecting plates are hinged to two sides of the bottom plate, the connecting plates are fixedly connected with the anechoic wedges, the lower end of the bottom plate is connected with a mounting seat through screws, and the mounting seat is fixedly connected with the anechoic wedges. A clamping assembly is arranged in the mounting base, a sliding groove is formed in the bottom plate, a sliding block is slidably connected into the sliding groove, and the sliding block is used for driving the clamping assembly to conduct sliding clamping. According to the utility model, the rapid installation of the lamp is realized through three-stage self-adaptive clamping: the elastic insections of the main clamping jaw absorb noise and trigger the auxiliary clamping jaw to rotate, so that a six-point static clamping structure is cooperatively formed to automatically adapt to lamps of different specifications; the annular air bag dynamically adjusts the sound absorption frequency band and is matched with the valve pressure adjusting function, the clamping stability is guaranteed, meanwhile, vibration noise is effectively restrained, and the dual effects of lossless installation and acoustic optimization are achieved.

Description

Technical Field

[0001] This utility model relates to the field of anechoic chamber lighting technology, and in particular to an adjustable lighting fixture base. Background Technology

[0002] The lighting fixture mounting bases are located between the wedges at the top of the anechoic chamber. Their main function is to install lighting fixtures to provide illumination for the anechoic chamber. One lighting fixture mounting base is installed between each set of wedges at the top of the anechoic chamber, and each mounting base is compatible with one lighting fixture. First, the lighting fixture mounting bases are installed onto the wedges on the ground. Then, the lighting fixtures are connected to the mounting bases to form a lighting wedge assembly. Finally, the lighting wedge assembly is hoisted to its installation position on the top wedges of the anechoic chamber.

[0003] Currently, the majority of existing anechoic chambers in China are small and medium-sized anechoic chambers. The vast majority of lighting fixture mounting bases are designed for small and medium-sized anechoic chambers. There are very few lighting fixture mounting bases designed for extra-large anechoic chambers. However, lighting fixtures are an indispensable part of anechoic chambers, and the design requirements for lighting fixture mounting bases are quite strict.

[0004] However, existing technologies lack standardized designs for large lighting fixture mounting bases. Existing small and medium-sized solutions are ill-suited for high-altitude, large-span structures, resulting in inadequate installation safety and acoustic performance (such as sound reflection). Furthermore, the compatibility between high-power lighting requirements and existing small-sized mounting bases is insufficient, and material selection must balance high strength with low sound reflection. Therefore, we propose an adjustable lighting fixture base. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an adjustable lighting fixture base that enables rapid installation of lighting fixtures through a three-stage adaptive clamping mechanism: the main gripper's elastic teeth absorb noise and trigger the auxiliary gripper's rotation, forming a six-point statically stable clamping structure that automatically adapts to different specifications of lighting fixtures; the annular airbag dynamically adjusts the sound absorption frequency band through variable stiffness characteristics, and in conjunction with the valve pressure adjustment function, effectively suppresses vibration noise while ensuring clamping stability, achieving the dual effects of non-destructive installation and acoustic optimization.

[0006] The purpose of this utility model is achieved as follows: An adjustable lighting fixture base includes a base plate installed between the included angles of two sound-absorbing wedges. Connecting plates are hinged to both sides of the base plate, and the connecting plates are fixedly connected to the sound-absorbing wedges. A mounting base is screwed to the lower end of the base plate. A clamping assembly is provided inside the mounting base. A sliding groove is provided on the base plate, and a slider is slidably connected within the groove. The slider is used to drive the clamping assembly to perform sliding clamping. A limit block is provided within the groove, and a limit structure is provided on the slider. A reflector is provided between the included angles of the two connecting plates, and a fixing ring is provided on the reflector. An annular airbag is provided inside the fixing ring, and the annular airbag is used to fix the lighting fixture.

[0007] Optionally, the base plate has a wire harness hole, which is a through hole. There are two mounting bases, which are symmetrically arranged, and each mounting base has an opening.

[0008] Optionally, the clamping assembly includes a main clamping jaw and an auxiliary clamping jaw. A first fixing block and a second fixing block are provided in the mounting base. The first fixing block and the second fixing block are correspondingly arranged. Both the first fixing block and the second fixing block are used to guide the main clamping jaw. The main clamping jaw is slidably connected to the mounting base, and the auxiliary clamping jaw is rotatably connected to the mounting base.

[0009] Optionally, the auxiliary gripper contacts the first fixed block, a guide block is fixedly connected to the main gripper, one end of the auxiliary gripper contacts the guide block, and a roller is provided on the auxiliary gripper to reduce friction with the guide block.

[0010] Optionally, both the main gripper and the auxiliary gripper are provided with teeth. The main gripper is fixedly connected to the teeth, and the auxiliary gripper is rotatably connected to the teeth. The teeth are arranged in a rack shape and are used to adapt to lighting fixtures of different specifications.

[0011] Optionally, the auxiliary gripper is provided with a stop block, which contacts the toothed teeth and is used to limit the rotation angle of the toothed teeth.

[0012] Optionally, a connecting block is fixedly connected between the slider and the main gripper, a tension spring is provided between the slider and the base plate, a protrusion is provided at the lower end of the slider, the protrusion is correspondingly provided with a sliding groove, and an inner cavity is formed inside the slider.

[0013] Optionally, a lever is slidably connected in the inner cavity, and a spring is provided in the inner cavity. One end of the spring is fixedly connected to the lever, and the other end of the spring is fixedly connected to the slider. The lever is provided with a finger groove.

[0014] Optionally, the lever is provided with a limiting groove, the slider is provided with an adjustment hole, a ball is provided in the adjustment hole, the ball only rolls in the adjustment hole, and the limiting groove is provided in correspondence with the ball.

[0015] Optionally, a connecting rod is threaded to the outer side of the fixing ring, the connecting rod is threaded to the sound-absorbing wedge, the connecting rod passes through the connecting plate, an annular cavity is formed on the inner side of the fixing ring, the annular airbag is correspondingly arranged with the annular cavity, a valve is provided on the fixing ring, and the valve is threaded to the annular airbag.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. The embodiments provided by this utility model achieve rapid and stable installation of lamps through a three-stage adaptive clamping process: the elastic rubber teeth of the main jaw absorb impact noise and increase friction through viscoelastic deformation, while triggering the rotation of the auxiliary jaw. The teeth of the auxiliary jaw automatically adjust the angle with the rotation to achieve dynamic fit with the contour of the lamp. The continuous compression deformation of the main jaw and the four-corner positioning of the auxiliary jaw work together to generate a self-centered radial component force, forming a statically determinate structure with six-point clamping. Moreover, the entire process can automatically adapt to different specifications of lamps without tool adjustment. The elastic teeth ensure clamping stability and avoid surface damage. The mechanical linkage significantly improves the installation efficiency, while multiple elastic elements suppress vibration noise.

[0018] Secondly, the inflatable annular airbag, through its variable stiffness characteristics, can not only buffer mechanical vibration, but also automatically adjust the cavity volume according to changes in sound pressure, thereby achieving dynamic sound absorption frequency band adjustment, absorbing mid-to-low frequency noise. The valve provides pressure regulation function, which can adapt to the installation requirements of lighting fixtures of different sizes and contours by changing the internal pressure of the airbag, ensuring clamping stability and avoiding overpressure damage. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure provided by this utility model.

[0021] Figure 2 This is a schematic diagram of the installation of the connecting plate and the sound-absorbing wedge provided by this utility model.

[0022] Figure 3 This is a schematic diagram of the reflector structure provided by this utility model.

[0023] Figure 4 This is a cross-sectional schematic diagram of the clamping component provided by this utility model.

[0024] Figure 5 This is a schematic diagram of the main gripper structure provided by this utility model.

[0025] Figure 6 This is a schematic diagram of the slider structure provided by this utility model.

[0026] Figure 7 This is a schematic diagram of the toggle block structure provided by this utility model.

[0027] In the diagram: 1. Base plate; 11. Connecting plate; 12. Cable harness hole; 13. Mounting base; 2. Clamping assembly; 21. Main gripper; 22. Auxiliary gripper; 23. Toothed teeth; 24. First fixing block; 25. Second fixing block; 26. Guide block; 27. Stop block; 3. Connecting block; 31. Slider; 32. Slide groove; 33. Tension spring; 34. Protrusion; 35. Inner cavity; 4. Pulley; 41. Spring; 42. Limiting groove; 43. Adjustment hole; 44. Ball bearing; 45. Finger groove; 46. Limiting block; 5. Reflector; 51. Fixing ring; 52. Connecting rod; 53. Annular cavity; 54. Annular airbag; 55. Valve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1 to 7 An adjustable lighting fixture base is shown, including a base plate 1 installed between the angles of two sound-absorbing wedges. Connecting plates 11 are hinged to both sides of the base plate 1, and the connecting plates 11 are fixedly connected to the sound-absorbing wedges. A mounting base 13 is screwed to the lower end of the base plate 1. A clamping assembly 2 is provided inside the mounting base 13. A sliding groove 32 is provided on the base plate 1, and a slider 31 is slidably connected in the sliding groove 32. The slider 31 is used to drive the clamping assembly 2 to perform sliding clamping. A limit block 46 is provided in the sliding groove 32, and a limit structure is provided on the slider 31. A reflector 5 is provided between the angles of the two connecting plates 11. A fixing ring 51 is provided on the reflector 5. An annular airbag 54 is provided inside the fixing ring 51, and the annular airbag 54 is used to fix the lighting fixture.

[0030] Furthermore, in this embodiment, the base plate 1 and the connecting plates 11 on both sides are connected by a rotatable hinge, so that during installation, this embodiment can adapt to different specifications and foot angles of the sound-absorbing wedges by adjusting the angle between the connecting plate 11 and the base plate 1. One end of the connecting rod 52 is threadedly connected to the fixing ring 51, and the other end of the connecting rod 52 passes through the connecting plate 11 and is then connected to the sound-absorbing wedge.

[0031] It should be noted that, firstly, the connecting plate 11 is a structure similar to a sieve plate, with several holes evenly opened to accommodate threaded rods, and the hole size is larger than the threaded end of the connecting rod 52. At the same time, after the threaded rod passes through the connecting plate 11, a nut and an elastic washer are set to lock it to prevent the connecting rod 52 from shaking with the connecting plate 11.

[0032] Secondly, the sound-absorbing wedge is made by setting a frame and then filling it with materials. The interior usually uses sound-absorbing materials such as fiberglass and polyurethane foam. Therefore, during installation, it is necessary to set embedded parts according to the installation position of the base plate 1 and the sound-absorbing wedge, and then connect the embedded parts with the connecting rod 52 by thread to achieve fixation.

[0033] Finally, the outer side of the connecting rod 52 is covered with rubber to reduce vibration transmission. An elastic gasket is placed between the connecting plate 11 and the sound-absorbing wedge to block solid-borne sound transmission. The connection hole between the connecting rod 52 and the sound-absorbing wedge is filled with sound-absorbing sealant to avoid direct metal contact and reduce the sound bridge effect. At the same time, the sealant fills the pores to prevent sound leakage and maintain the original impedance characteristics without damaging the internal sound-absorbing structure of the wedge.

[0034] Specifically, the base plate 1 has a wire harness hole 12, which is a through hole. There are two mounting bases 13, which are symmetrically arranged, and each mounting base 13 has an opening.

[0035] Furthermore, the interior of the mounting base 13 is used to set the clamping component 2. The symmetrical arrangement of the two mounting bases 13 can ensure that the lamp is subjected to balanced force. During installation, the lamp is placed directly below the wire harness hole 12, which can play a certain role in heat dissipation.

[0036] Specifically, the clamping assembly 2 includes a main clamping jaw 21 and an auxiliary clamping jaw 22. A first fixing block 24 and a second fixing block 25 are provided in the mounting base 13. The first fixing block 24 and the second fixing block 25 are correspondingly arranged. Both the first fixing block 24 and the second fixing block 25 are used to guide the main clamping jaw 21. The main clamping jaw 21 is slidably connected to the mounting base 13, and the auxiliary clamping jaw 22 is rotatably connected to the mounting base 13.

[0037] It should be noted that the tooth pattern 23 is an integral structure, and the side end that contacts the lighting fixture is a flexible end. A rigid material is provided on the flexible end for connecting the main gripper 21 or the auxiliary gripper 22.

[0038] Furthermore, both the first fixing block and the second fixing block 25 include two symmetrically distributed block structures. The two block structures are fixedly connected to the mounting base 13, and a channel for the main gripper 21 to slide is formed between the two block structures. The slides of the first fixing block and the second fixing block 25 are on a straight line.

[0039] The area between the outer side of the first fixing block 24 and the inside of the mounting base 13 is correspondingly set with the auxiliary gripper 22. Since the auxiliary gripper 22 rotates and clamps, the structure of the first fixing block 24 needs to avoid the rotation trajectory of the auxiliary gripper 22.

[0040] Specifically, the auxiliary gripper 22 contacts the first fixed block 24, the main gripper 21 is fixedly connected to the guide block 26, one end of the auxiliary gripper 22 contacts the guide block 26, and the auxiliary gripper 22 is provided with a roller to reduce the friction with the guide block 26.

[0041] Furthermore, this embodiment provides a composite clamping mechanism in which the main gripper 21 slides and the auxiliary gripper 22 rotates. The linear motion accuracy of the main gripper 21 is ensured by the dual guidance of the first fixed block 24 and the second fixed block 25. The guide block 26 on the main gripper 21 has an inclined surface to provide rotational thrust for the auxiliary gripper 22. The auxiliary gripper 22 forms a rolling friction pair with the guide block 26 through rollers to reduce friction and make the operation smoother. At the same time, the clamping range of the auxiliary gripper 22 is controlled according to the angle between the inclined surface of the guide block 26 and the main gripper 21, so that the auxiliary gripper 22 can swing smoothly. With the toothed 23 structure at its end, it can adapt to the curved contour of lamps of different diameters and increase the clamping contact area.

[0042] Specifically, both the main gripper 21 and the auxiliary gripper 22 are provided with teeth 23. The main gripper 21 is fixedly connected to the teeth 23, and the auxiliary gripper 22 is rotatably connected to the teeth 23. The teeth 23 are arranged in a rack shape and are used to adapt to lighting fixtures of different specifications.

[0043] Furthermore, the teeth 23 are made of flexible rubber material. Utilizing the vibration damping effect of the rubber material itself, noise at the contact surface can be reduced. The teeth 23 are set in a rack shape, so that there is a gradually narrowing gap between each tooth. When clamping, the teeth 23 will deform and make closer contact with the outer contour of the lighting fixture, which greatly increases the actual contact area between the teeth 23 and the lighting fixture. At the same time, the adsorption friction of the rubber material can greatly increase the clamping stability of the claw on the lighting fixture. Therefore, the use of a rubber and metal composite structure not only maintains the structural strength, but also dissipates vibration energy through the viscoelasticity of the rubber layer, thereby reducing the generation of noise.

[0044] Specifically, the auxiliary gripper 22 is provided with a stop 27, which contacts the toothed pattern 23 and is used to limit the rotation angle of the toothed pattern 23.

[0045] Furthermore, the ends of the stop block 27 and the auxiliary gripper 22 are integrally formed and rotatably connected to the toothed pattern 23. Since the outer contours of different specifications of lighting fixtures have different characteristics, the rotatably connected toothed pattern 23 can better fit the outer contour of the lighting fixture. The structure of the stop block 27 is used to prevent the toothed pattern 23 from rotating too far and causing the back of the toothed pattern 23 to contact the lighting fixture.

[0046] Furthermore, during operation, the lighting fixture to be installed is first placed in the clamping space formed by the two main grippers 21. When the operator applies external force to make the main grippers 21 move synchronously along the slide of the first fixing block 24 and the second fixing block 25, the rubber teeth 23 at the end of the main grippers 21 first contact the outer wall of the lighting fixture. At this time, the following three-stage clamping process will occur:

[0047] First stage (initial contact): When the teeth 23 of the main gripper 21 contact the lamp, the rubber material of the main gripper 21 undergoes elastic deformation. Through the viscoelastic properties of the material itself, it can absorb the contact impact noise and increase the coefficient of friction, forming a preliminary anti-slip fixation. At the same time, the guide block 26 on the main gripper 21 pushes the roller mechanism of the auxiliary gripper 22, converting the linear motion into rotational motion.

[0048] Second stage (linkage clamping): As the main clamp 21 moves, the auxiliary clamp 22 rotates around the pivot in the mounting base 13, bringing the teeth 23 close to the lighting fixture. The auxiliary clamp 22 continues to clamp, causing the teeth 23 to adjust its angle and fit the outer contour of the lighting fixture more closely, until the teeth 23 fit the outer contour of the lighting fixture.

[0049] The third stage (adaptive locking): When the clamping force reaches a certain value, the rubber teeth 23 of the main gripper 21 continue to compress and deform, while the four auxiliary grippers 22, through their four-corner positioning characteristics, will generate radial component force to automatically center the lamp. At this time, the entire system forms a statically stable six-point clamping structure. Finally, the lighting fixture is moved to check whether it has been clamped stably, thereby realizing adaptive fixing of lighting fixtures of different specifications and sizes.

[0050] Specifically, a connecting block 3 is fixedly connected between the slider 31 and the main gripper 21, a tension spring 33 is provided between the slider 31 and the base plate 1, a protrusion 34 is provided at the lower end of the slider 31, the protrusion 34 is correspondingly provided with the slide groove 32, and an inner cavity 35 is formed inside the slider 31.

[0051] Furthermore, the slider 31 and the main gripper 21 are rigidly connected by screws through the connecting block 3 to ensure force transmission efficiency. Two protrusions 34 are provided on the lower sides of the slider 31, and a limiting block 46 is provided inside the slide groove 32. The limiting block 46 is elongated, so that the limiting block 46 presses on the protrusions 34. Thus, the two protrusions 34 symmetrically arranged below the slider 31 cooperate with the elongated limiting block 46 in the slide groove 32. The double-sided guidance makes the pressure distribution of the sliding friction surface uniform, realizes stable sliding, and prevents the slider 31 from falling off.

[0052] Furthermore, a hole for installing a tension spring 33 is opened inside the slide groove 32. One end of the tension spring 33 is fixed to the bottom of the hole, and the other end is fixed to the slider 31.

[0053] It should be noted that the function of the tension spring 33 is only to provide a smooth reset force for the slider 31 through its preload.

[0054] Specifically, a lever 4 is slidably connected in the inner cavity 35, and a spring 41 is provided in the inner cavity 35. One end of the spring 41 is fixedly connected to the lever 4, and the other end of the spring 41 is fixedly connected to the slider 31. A finger groove 45 is provided on the lever 4.

[0055] Specifically, the lever 4 is provided with a limit groove 42, the slider 31 is provided with an adjustment hole 43, and a ball 44 is provided in the adjustment hole 43. The ball 44 only rolls in the adjustment hole 43, and the limit groove 42 is provided in correspondence with the ball 44.

[0056] It should be noted that, firstly, the adjustment hole 43 is located on the slider 31, and the ball 44 rolls inside the adjustment hole 43, but cannot disengage from the adjustment hole 43. Furthermore, the ball 44 is configured in conjunction with the limiting block 46 for limiting its position.

[0057] Secondly, the limiting groove 42 on the lever 4 is stepped, divided into a high step and a low step, and the connection between the high step and the low step is rounded to improve the sliding performance. When the spring 41 is in the normal state, the position of the high step corresponds to the adjustment hole 43, so that the ball 44 protrudes from the slider 31 and cooperates with the limiting block 46. When the spring 41 is compressed, the position of the low step corresponds to the adjustment hole 43. Since the position of the low step is lower than that of the high step, it provides room for movement, allowing the ball 44 to move within the adjustment hole 43, thereby removing the restriction between the slider 31 and the limiting block 46.

[0058] In use, the finger groove 45 is moved, which causes the lever 4 to slide in the inner cavity 35 and compress the spring 41. When the lever 4 slides, the lower step on the limiting groove 42 aligns with the adjusting hole 43, releasing the engagement of the ball 44 with the limiting block 46, thereby moving the slider 31 and thus moving the clamping assembly 2.

[0059] Specifically, a connecting rod 52 is threaded to the outer side of the fixing ring 51. The connecting rod 52 is threaded to the sound-absorbing wedge. The connecting rod 52 passes through the connecting plate 11. An annular cavity 53 is opened on the inner side of the fixing ring 51. An annular airbag 54 is correspondingly arranged with the annular cavity 53. A valve 55 is provided on the fixing ring 51. The valve 55 is threaded to the annular airbag 54.

[0060] Furthermore, the annular cavity 53 is used to install the annular airbag 54. The inflatable annular airbag 54, through its variable stiffness characteristics, can not only buffer mechanical vibration, but also automatically adjust the cavity volume according to the sound pressure change, realizing dynamic sound absorption frequency band adjustment and absorbing mid-to-low frequency noise. The valve 55 provides pressure adjustment function, which can adapt to the installation requirements of lighting fixtures of different sizes and contours by changing the internal pressure of the airbag, ensuring clamping stability and avoiding overpressure damage. The design of the connecting rod 52 penetrating the connecting plate 11 forms an acoustic short circuit block. The elastic gasket at its threaded connection can suppress structural sound transmission. Through the adaptive deformation capability of the airbag, it can automatically compensate for the unevenness of the mounting surface of the lighting fixture, ensuring acoustic sealing. The multi-layer structure of the fixing ring 51 also realizes the gradual change of acoustic impedance, so that the incident sound wave can transition smoothly and reduce reflected sound energy.

[0061] Working principle: In use, the lamp is passed through the reflector cup 5 and the fixing ring 51 and placed between the two main grippers 21. Then, the wire is passed through the cable tie hole 12. The finger groove 45 is moved, which drives the lever 4 to slide in the inner cavity 35 and compress the spring 41. When the lever 4 slides, the lower step on the limiting groove 42 aligns with the adjusting hole 43, releasing the engagement of the ball bearing 44 with the limiting block 46. Then, the slider 31 is pulled to drive the main grippers 21 to slide. When the main grippers 21 move synchronously along the slide of the first fixing block 24 and the second fixing block 25, the rubber teeth 23 at the end of the main grippers 21 first contact the outer wall of the lamp. At the moment of contact with the lamp, the rubber material of the teeth 23 of the main grippers 21 undergoes elastic deformation. A preliminary anti-slip fixation is formed. At the same time, as the main gripper 21 moves, the auxiliary gripper 22 rotates around the pivot in the mounting base 13, bringing the teeth 23 close to the lighting fixture. The auxiliary gripper 22 continues to clamp until the teeth 23 fit the outer contour of the lighting fixture. When the clamping force reaches a certain value, the rubber teeth 23 of the main gripper 21 continues to compress and deform. The four auxiliary grippers 22 generate radial force to automatically center the center of the lighting fixture, forming a six-point clamping static structure. Then, the finger groove 45 is released, the spring 41 pushes the lever 4 to reset, and the higher-order push ball 44 of the limiting groove 42 extends out of the slider 31 to cooperate with the limiting block 46 to lock the structure and prevent it from falling off.

[0062] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An adjustable lighting fixture base, comprising a base plate (1) mounted on the included angle surface of a sound-absorbing wedge, characterized in that: Both sides of the base plate (1) are hinged with connecting plates (11), the connecting plates (11) are fixedly connected to the sound-absorbing wedge, the lower end of the base plate (1) is screwed with a mounting base (13), the mounting base (13) is provided with a clamping assembly (2), the base plate (1) is provided with a sliding groove (32), a slider (31) is slidably connected in the sliding groove (32), the slider (31) is used to drive the clamping assembly (2) to perform sliding clamping, a limit block (46) is provided in the sliding groove (32), a limit structure is provided on the slider (31), a reflector (5) is provided between the included angles of the two connecting plates (11), a fixing ring (51) is provided on the reflector (5), an annular airbag (54) is provided inside the fixing ring (51), the annular airbag (54) is used to fix the lighting fixture.

2. The adjustable lighting fixture base according to claim 1, characterized in that: The base plate (1) has a wire harness hole (12), which is a through hole. There are two mounting seats (13), which are symmetrically arranged, and each of the two mounting seats (13) has an opening.

3. The adjustable lighting fixture base according to claim 1, characterized in that: The clamping assembly (2) includes a main clamping jaw (21) and an auxiliary clamping jaw (22). A first fixing block (24) is provided in the mounting base (13), and a second fixing block (25) is provided in the mounting base (13). The first fixing block (24) and the second fixing block (25) are correspondingly arranged. The first fixing block (24) and the second fixing block (25) are both used to guide the main clamping jaw (21). The main clamping jaw (21) is slidably connected to the mounting base (13), and the auxiliary clamping jaw (22) is rotatably connected to the mounting base (13).

4. An adjustable lighting fixture base according to claim 3, characterized in that: The auxiliary gripper (22) contacts the first fixed block (24), and a guide block (26) is fixedly connected to the main gripper (21). One end of the auxiliary gripper (22) contacts the guide block (26), and a roller is provided on the auxiliary gripper (22) to reduce the friction with the guide block (26).

5. An adjustable lighting fixture base according to claim 3, characterized in that: Both the main gripper (21) and the auxiliary gripper (22) are provided with teeth (23). The main gripper (21) is fixedly connected to the teeth (23), and the auxiliary gripper (22) is rotatably connected to the teeth (23). The teeth (23) are arranged in the shape of a rack and are used to adapt to lighting fixtures of different specifications.

6. An adjustable lighting fixture base according to claim 3, characterized in that: The auxiliary gripper (22) is provided with a stop (27), which contacts the toothed pattern (23) and limits the angle of rotation of the toothed pattern (23).

7. An adjustable lighting fixture base according to claim 1, characterized in that: A connecting block (3) is fixedly connected between the slider (31) and the main gripper (21). A tension spring (33) is provided between the slider (31) and the base plate (1). A protrusion (34) is provided at the lower end of the slider (31). The protrusion (34) is correspondingly provided with the slide groove (32). An inner cavity (35) is formed inside the slider (31).

8. An adjustable lighting fixture base according to claim 7, characterized in that: A lever (4) is slidably connected in the inner cavity (35), and a spring (41) is provided in the inner cavity (35). One end of the spring (41) is fixedly connected to the lever (4), and the other end of the spring (41) is fixedly connected to the slider (31). A finger groove (45) is provided on the lever (4).

9. An adjustable lighting fixture base according to claim 8, characterized in that: The lever (4) is provided with a limiting groove (42), the slider (31) is provided with an adjustment hole (43), a ball (44) is provided in the adjustment hole (43), the ball (44) only rolls in the adjustment hole (43), and the limiting groove (42) is provided in correspondence with the ball (44).

10. An adjustable lighting fixture base according to claim 1, characterized in that: The outer side of the fixed ring (51) is threaded with a connecting rod (52), the connecting rod (52) is threadedly connected to the sound-absorbing wedge, the connecting rod (52) passes through the connecting plate (11), the inner side of the fixed ring (51) is provided with an annular cavity (53), the annular airbag (54) is correspondingly provided with the annular cavity (53), the fixed ring (51) is provided with a valve (55), the valve (55) is threadedly connected to the annular airbag (54).

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