An LED light strip fixing structure for advertising light boxes

Abstract

This utility model relates to the technical field of advertising light boxes and LED lighting fixing structures, specifically to an LED light strip fixing structure for advertising light boxes, comprising: a U-shaped mounting base, an LED light strip disposed within the U-shaped mounting base, and a ventilation groove formed at the bottom of the U-shaped mounting base, with multiple sets of heat dissipation holes formed on the ventilation groove, and multiple sets of base fixing holes evenly arrayed along the longitudinal centerline of the ventilation groove, with fixing nails disposed within the base fixing holes, and multiple sets of fixing components disposed on the U-shaped mounting base, the fixing components being used to fix the LED light strip within the U-shaped mounting base. The purpose of this utility model is to propose an LED light strip fixing structure for advertising light boxes to solve the problems of easy aging and detachment of adhesive fixing and uneven distribution of clamp / screw holding force leading to warping and unevenness with the glossy surface in the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of advertising light boxes and LED lighting fixing structures, and in particular to an LED light strip fixing structure for advertising light boxes. Background Technology

[0002] Advertising light boxes are widely used in shopping malls, subways, airports, and outdoor roads. They typically employ LED light strips as surface or linear light sources to meet the demands for thinness, energy efficiency, and high-brightness uniformity. To ensure long-term stable illumination and maintenance efficiency, the installation of light strips within the light box requires not only reliable mechanical fixing capabilities but also quick assembly and replacement, vibration and impact resistance, compatibility with different light strip specifications, and good heat dissipation and ventilation to reduce heat buildup. Furthermore, in scenarios involving continuous installation of long light strips, the fixing structure must provide uniform holding force to prevent uneven stress from causing the light strip to warp, resulting in uneven light-emitting surfaces or dark areas. Simultaneously, orderly arrangement and precise positioning within a limited space are crucial to reduce construction errors and improve maintenance convenience.

[0003] In the prior art, structures that rely solely on adhesive are prone to aging and falling off under high temperature, high humidity, or long-term thermal cycling conditions, and are difficult to withstand the vibration and impact generated during transportation and use. Traditional rigid buckles or single-point screw clamps lack elastic pre-tightening and buffering designs, which easily lead to uneven distribution of clamping force, point pressure damage to the light strip or solder joints, and unevenness and poor consistency of the light source surface, resulting in poor practicality. Therefore, this utility model discloses an LED light strip fixing structure for advertising light boxes to solve the problems of easy aging and falling off of adhesive fixing and uneven distribution of clamp / screw clamping force leading to lifting and uneven surface in the prior art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose an LED light strip fixing structure for advertising light boxes, so as to solve the problems of easy aging and falling off of adhesive fixing and uneven distribution of buckle / screw holding force in the prior art, which leads to lifting and unevenness with the glossy surface.

[0005] To achieve the above objectives, this utility model provides an LED light strip fixing structure for advertising light boxes, comprising: a U-shaped mounting base, wherein an LED light strip is disposed within the U-shaped mounting base, and a ventilation groove is provided at the bottom of the U-shaped mounting base, wherein multiple sets of heat dissipation holes are provided on the ventilation groove, and multiple sets of base fixing holes are uniformly arrayed along the longitudinal centerline of the ventilation groove, wherein fixing nails are disposed within the base fixing holes, and multiple sets of fixing components are provided on the U-shaped mounting base, wherein the fixing components are used to fix the LED light strip within the U-shaped mounting base.

[0006] Preferably, the fixing component includes multiple sets of U-shaped buckles, which are inverted and engaged on the U-shaped mounting base. The multiple sets of U-shaped buckles are evenly installed above the U-shaped mounting base. Each U-shaped buckle has a set of guide protrusions on its inner side walls, and each U-shaped mounting base has a set of guide grooves on its outer side walls corresponding to the position of each U-shaped buckle. The guide grooves cooperate with the guide protrusions. Furthermore, each outer side wall of the U-shaped mounting base has a set of limiting buckle loading grooves corresponding to the middle position of each U-shaped buckle. The upper inner wall of each limiting buckle loading groove is provided with a first telescopic rod. An L-shaped fixing buckle is installed at the other end of the first telescopic rod, and a rotating rod is rotatably installed at the bottom end of the L-shaped fixing buckle. Both ends of the rod are fixedly installed on the bottom side wall of the loading slot of the limiting buckle, and a horizontal support spring is sleeved on the first telescopic rod. The short side of each group of L-shaped fixing buckles faces the direction of the U-shaped buckle. The edge of the short side of each L-shaped fixing buckle is beveled. Rectangular limiting holes are opened on the side walls of both ends of the U-shaped buckle corresponding to the position of the short side of each group of L-shaped fixing buckles. A set of second telescopic rods is installed on both ends of the inner wall of the top of the U-shaped buckle. A set of pressure plates is installed on the other end of the two sets of second telescopic rods. An elastic rubber pad is installed on the other side of the pressure plate. The other end of each set of elastic rubber pads presses against the surface of the LED light strip. A vertical support spring is sleeved on each set of second telescopic rods.

[0007] Preferably, the width of each set of guide grooves and guide protrusions is the same, and the guide protrusions are slidably inserted into the guide grooves.

[0008] Preferably, one end of each set of horizontal support springs is fixedly installed on the side wall of the limit buckle loading groove at the corresponding position, and the other end of each set of horizontal support springs is fixedly installed on the side wall of the L-shaped fixing buckle at the corresponding position.

[0009] Preferably, each of the L-shaped fixing buckles has a circular hole with the same diameter as the rotating rod at the position corresponding to the rotating rod.

[0010] Preferably, one end of the vertical support spring is fixedly installed on the inner wall of the top of the U-shaped buckle, and the other end of the vertical support spring is fixedly installed on the outer wall of the top of the pressure plate.

[0011] Preferably, the U-shaped mounting base has a base pad on the side wall near the advertising light box.

[0012] The beneficial effects of this utility model are: By integrating a synergistic structure of guide, lock, hold, and heat dissipation on the U-shaped mounting base, the installation reliability and maintenance convenience of LED light strips in advertising light boxes are significantly improved. Specifically, the guide groove and guide protrusion are matched in width and engage in a sliding insertion manner, enabling rapid alignment and directional guidance of the U-shaped buckle during inverted snap-fit ​​assembly, reducing construction errors and improving assembly efficiency. The first telescopic rod and horizontal support spring within the loading slots of the limit buckles on both sides provide continuous elastic pre-tension for the L-shaped fixing buckle, and together with the rotating rod, enable flexible folding and reset operations. The short side of the L-shaped fixing buckle engages with the rectangular limiting hole on the U-shaped buckle, utilizing its beveled chamfer and hole positioning to form a secondary mechanical lock, effectively preventing vibration and impact during transportation and long-term use. The design is loose and prevents displacement, significantly superior to traditional adhesive and single-point screw fixing methods. The second telescopic rod at the top of the U-shaped buckle, along with the vertical support spring, drives the pressure plate to flexibly and evenly press the surface of the light strip. This, combined with the elastic rubber pad on the pressure plate, forms surface contact and buffers vibration, adapting to different thicknesses and tolerances while avoiding point pressure damage to the light strip's solder joints and components. This maintains the flatness and consistency of the luminous surface, reducing the risk of dark areas and bright spots. The ventilation groove at the bottom of the base, along with multiple sets of heat dissipation holes, forms a continuous convection channel. This, combined with the base fixing holes and fixing nails, ensures stable load-bearing and orderly wiring, guiding heat dissipation in a timely manner, improving the thermal environment, and extending the lifespan of the light strip. At the same time, a bottom pad is provided near the side wall of the light box, which further isolates vibration, prevents scratches, and improves the overall assembly fit. In summary, this solution combines the advantages of rapid assembly / replacement, flexible pre-tightening and buffering, secondary mechanical limiting and anti-loosening, convection heat dissipation and standardized load-bearing, effectively solving the problems of easy aging and falling off of adhesive fixing, uneven distribution of clamping / screw holding force leading to warping and uneven surface in existing technologies. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in 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 for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a top view of a portion of the structure of this utility model. Figure 3 This is a cross-sectional three-dimensional structural diagram of some components of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This utility model Figure 3 Enlarged structural diagram at point B.

[0015] The diagram is marked as follows: 1. U-shaped mounting base; 2. LED light strip; 3. Ventilation groove; 4. Heat dissipation hole group; 5. Base fixing hole; 6. Guide groove; 7. U-shaped buckle; 8. Guide protrusion; 9. Rectangular limiting hole; 10. Limit buckle loading groove; 11. First telescopic rod; 12. Horizontal support spring; 13. L-shaped fixing buckle; 14. Rotating rod; 15. Pressure plate; 16. Second telescopic rod; 17. Vertical support spring. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0017] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] This utility model provides, for example Figures 1 to 5 The LED light strip fixing structure for advertising light boxes shown includes: a U-shaped mounting base 1, an LED light strip 2 disposed inside the U-shaped mounting base 1, and a ventilation groove 3 opened at the bottom of the U-shaped mounting base 1. Multiple sets of heat dissipation holes 4 are opened on the ventilation groove 3, and multiple sets of base fixing holes 5 are evenly arrayed along the longitudinal centerline of the ventilation groove 3. Fixing nails are disposed in the base fixing holes 5. Multiple sets of fixing components are provided on the U-shaped mounting base 1. The fixing components are used to fix the LED light strip 2 inside the U-shaped mounting base 1. By integrating a synergistic structure of guide, lock, hold, and heat dissipation on the U-shaped mounting base 1, the installation reliability and maintenance convenience of the LED light strip 2 in the advertising light box are significantly improved. Specifically, the guide groove 6 and guide protrusion 8 are matched in width and engage in a sliding insertion manner, enabling the U-shaped buckle 7 to achieve rapid alignment and directional guidance during inverted engagement assembly, reducing construction errors and improving assembly efficiency. The first telescopic rod 11 and horizontal support spring 12 installed in the loading grooves 10 of the two side limit buckles provide continuous elastic pre-tension for the L-shaped fixing buckle 13, and, together with the rotating rod 14, achieve flexible folding and reset operations. The short side of the L-shaped fixing buckle 13 engages with the rectangular limiting hole 9 on the U-shaped buckle 7, utilizing its beveled chamfer for guidance and hole positioning to form a mechanical secondary lock, thereby preventing damage during transportation and long-term use in vibration and impact environments. Effectively prevents loosening and displacement, significantly superior to traditional adhesive and single-point screw fixing methods; the second telescopic rod 16 arranged at the top of the U-shaped buckle 7 and the vertical support spring 17 drive the pressure plate 15 to flexibly and evenly press the surface of the light strip, forming surface contact and buffering vibration with the elastic rubber pad on the pressure plate. This adapts to different thicknesses and tolerances, avoids point pressure damage to the light strip's solder joints and components, maintains the flatness and consistency of the light-emitting surface, and reduces the risk of dark areas and bright spots; the ventilation groove 3 at the bottom of the base and the multiple sets of heat dissipation holes 4 on it form a through convection channel, which, together with the base fixing holes 5 and fixing nails, achieves stable bearing and orderly wiring, guides the timely discharge of working heat, improves the thermal environment, and extends the life of the light strip; at the same time, the base is provided with a bottom pad near the side wall of the light box, which can further isolate vibration, prevent scratches, and improve the overall assembly fit. In summary, this solution combines the advantages of rapid assembly / replacement, flexible pre-tightening and buffering, secondary mechanical limiting and anti-loosening, convection heat dissipation and standardized load-bearing, effectively solving the problems of easy aging and falling off of adhesive fixing, uneven distribution of clamping / screw holding force leading to warping and uneven surface in existing technologies.

[0019] Furthermore, in this example, such as Figure 3 , Figure 4 and Figure 5As shown, the fixing assembly includes multiple sets of U-shaped buckles 7, which are inverted and engaged on the U-shaped mounting base 1. The multiple sets of U-shaped buckles 7 are evenly installed above the U-shaped mounting base 1. Each of the inner walls on both sides of the U-shaped buckle 7 has a set of guide protrusions 8. Each of the outer walls on both sides of the U-shaped mounting base 1 has a set of guide grooves 6 corresponding to the position of each set of U-shaped buckles 7. The guide grooves 6 cooperate with the guide protrusions 8. Each of the outer walls on both sides of the U-shaped mounting base 1 has a set of limiting buckle loading grooves 10 corresponding to the middle position of each U-shaped buckle 7. The upper inner wall of the limiting buckle loading groove 10 has a first telescopic rod 11. An L-shaped fixing buckle 13 is installed at the other end of the first telescopic rod 11. A rotating rod 14 is rotatably installed at the bottom end of the L-shaped fixing buckle 13. The two sides of the rotating rod 14... The ends are respectively fixedly installed on the bottom side wall of the limit buckle loading groove 10, and a horizontal support spring 12 is sleeved on the first telescopic rod 11. The short side of each group of L-shaped fixing buckles 13 faces the direction of the U-shaped buckle 7. The end edge of the short side of the L-shaped fixing buckle 13 is beveled. The side walls at both ends of the U-shaped buckle 7 are provided with rectangular limiting holes 9 corresponding to the position of the short side of each group of L-shaped fixing buckles 13. A set of second telescopic rods 16 are respectively installed at both ends of the top inner wall of the U-shaped buckle 7. A set of pressure plates 15 are installed at the other end of the two sets of second telescopic rods 16. An elastic rubber pad is installed on the other side of the pressure plate 15. The other end of each set of elastic rubber pads presses against the surface of the LED light strip 2. A vertical support spring 17 is sleeved on each set of second telescopic rods 16. During assembly, the U-shaped buckle 7 slides in with an inverted engagement posture, engaging with the guide grooves 6 on both sides of the U-shaped mounting base 1 and the guide protrusions 8 on the inner walls of the buckle. The linear constraint of the guide grooves 6 and guide protrusions 8 ensures that the U-shaped buckle 7 is stable and quickly aligned to the target position during insertion. When the U-shaped buckle 7 slides into position, the first telescopic rod 11 in the loading grooves 10 of the two limit buckles, under the elastic force of the horizontal support spring 12, pushes the L-shaped fixing buckle 13 to rotate slightly clockwise around the rotating rod 14 at its bottom end and automatically approach the U-shaped buckle 7. The chamfered edge of the short side of the fixing buckle 13 first contacts the rectangular limiting holes 9 on the side walls of the U-shaped buckle 7. Under the combined action of the chamfered guide and the pre-tightening of the horizontal support spring 12, the short side of the fixing buckle 13 springs into the rectangular limiting hole 9 to achieve self-locking engagement, forming a lateral mechanical engagement. The secondary locking prevents the U-shaped buckle 7 from retracting or shifting under vibration and impact. At the same time, the second telescopic rod 16, symmetrically arranged at the top of the U-shaped buckle 7, presses the pressure plate 15 against the LED light strip 2 under the push of the vertical support spring 17. The elastic rubber pad on the outside of the pressure plate 15 forms a flexible surface contact with the surface of the light strip 2, providing uniform and buffered holding force. This absorbs the micro-vibrations from the light box and avoids point pressure damage to the solder joints and components of the light strip, thereby maintaining the flatness and consistency of the light-emitting surface. When unlocking and maintaining, the operator presses the L-shaped fixing buckle 13 to make it rotate in the opposite direction around the rotating rod 14. The first telescopic rod 11 is compressed, the horizontal support spring 12 stores energy, and the short side of the fixing buckle 13 disengages from the rectangular limiting hole 9. After the U-shaped buckle 7 is released from the lateral locking, it can smoothly exit along the path of the guide groove 6 and the guide protrusion 8, completing the quick disassembly and reassembly.

[0020] Furthermore, in this example, such as Figure 3 and Figure 4 As shown, each set of guide grooves 6 and guide protrusions 8 have the same width, and the guide protrusions 8 are slidably inserted into the guide grooves 6. One end of each set of horizontal support springs 12 is fixedly installed on the side wall of the limit buckle loading groove 10 at the corresponding position, and the other end of each set of horizontal support springs 12 is fixedly installed on the side wall of the L-shaped fixing buckle 13 at the corresponding position. Each set of L-shaped fixing buckles 13 has a round hole with the same diameter as the rotating rod 14 at the position corresponding to the rotating rod 14. One end of the vertical support spring 17 is fixedly installed on the inner wall of the top of the U-shaped buckle 7, and the other end of the vertical support spring 17 is fixedly installed on the outer wall of the top of the pressure plate 15. The side wall of the U-shaped mounting base 1 near the advertising light box is provided with a bottom pad. The guide groove 6 and guide protrusion 8 adopt an equal width design and achieve sliding insertion, forming a low-gap linear guide and lateral limit during assembly, reducing alignment error from the source and homogenizing the insertion force, adapting to manufacturing tolerances and thermal expansion and contraction of long parts; one end of the horizontal support spring 12 is anchored to the side wall of the limit buckle loading groove 10, and the other end is anchored to the side wall of the L-shaped fixing buckle 13, with a lever arm from the rotating rod 14, thus providing continuous return torque and lateral preload when the fixing buckle 13 rotates around the rotating rod 14, ensuring a reliable fit between the fixing buckle 13 and the rectangular limit hole 9; the circular hole on the L-shaped fixing buckle 13 that matches the diameter of the rotating rod 14 ensures coaxiality, low friction, and small clearance of the rotating pair, thereby improving the smoothness of the locking action. Lifespan; One end of the vertical support spring 17 is rigidly connected to the inner wall of the top of the U-shaped buckle 7 and the other end is rigidly connected to the outer wall of the top of the pressure plate 15, forming an adaptive vertical preload on the LED light strip 2. It generates slight expansion and contraction with thickness deviation and vibration displacement to maintain constant pressure and suppress resonance; The bottom pad set on the side of the U-shaped mounting base 1 near the advertising light box provides a vibration isolation and scratch-proof contact surface between the system and the box, which can absorb micro-impacts during installation and operation and improve fit. Thus, in conjunction with the above-mentioned horizontal and vertical elastic elements, it forms a comprehensive compensation and energy dissipation channel for lateral displacement, vertical vibration and assembly tolerance, and finally achieves stable operation with anti-loosening, anti-displacement, low wear and low noise under long-term operating conditions.

[0021] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0022] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An LED light strip fixing structure for an advertising light box, characterized by, include: U-shaped mounting base (1), LED light strip (2) is provided inside the U-shaped mounting base (1), and ventilation groove (3) is provided at the bottom of the U-shaped mounting base (1). Multiple sets of heat dissipation holes (4) are provided on the ventilation groove (3), and multiple sets of base fixing holes (5) are uniformly arrayed along the longitudinal center line of the ventilation groove (3). Fixing nails are provided in the base fixing holes (5). Multiple sets of fixing components are provided on the U-shaped mounting base (1). The fixing components are used to fix the LED light strip (2) inside the U-shaped mounting base (1).

2. The LED light strip fixing structure for an advertising light box according to claim 1, characterized in that, The fixing component includes multiple sets of U-shaped buckles (7), which are inverted and engaged on the U-shaped mounting base (1). The multiple sets of U-shaped buckles (7) are evenly installed above the U-shaped mounting base (1). Each of the inner walls of the U-shaped buckles (7) is provided with a set of guide protrusions (8). Each of the outer walls of the U-shaped mounting base (1) is provided with a set of guide grooves (6) corresponding to the position of each set of U-shaped buckles (7). The guide grooves (6) cooperate with the guide protrusions (8). Each of the outer walls of the U-shaped mounting base (1) is provided with a set of limit buckle loading grooves (10) corresponding to the middle position of the U-shaped buckles (7). The upper inner wall of the limit buckle loading groove (10) is provided with a first telescopic rod (11). An L-shaped fixing buckle (13) is installed at the other end of the first telescopic rod (11). A rotating rod (14) is rotatably installed at the bottom end of the L-shaped fixing buckle (13). (14) is fixedly installed on the bottom side wall of the limit buckle loading groove (10) at both ends, and a horizontal support spring (12) is sleeved on the first telescopic rod (11). The short side of each group of L-shaped fixing buckles (13) faces the direction of the U-shaped buckle (7). The edge of the short side of the L-shaped fixing buckle (13) is beveled. The side walls of the two ends of the U-shaped buckle (7) are provided with rectangular limiting holes (9) corresponding to the position of the short side of each group of L-shaped fixing buckles (13). A set of second telescopic rods (16) is installed at both ends of the top inner wall of the U-shaped buckle (7). A set of pressure plates (15) is installed at the other end of the two sets of second telescopic rods (16). An elastic rubber pad is installed on the other side of the pressure plate (15). The other end of each set of elastic rubber pads presses against the surface of the LED light strip (2). A vertical support spring (17) is sleeved on each set of second telescopic rods (16).

3. The LED light strip fixing structure for an advertising light box according to claim 2, characterized in that, The width of each guide groove (6) and guide protrusion (8) is the same, and the guide protrusion (8) is slidably inserted into the guide groove (6).

4. The LED light strip fixing structure for an advertising light box according to claim 3, characterized in that, One end of each set of horizontal support springs (12) is fixedly installed on the side wall of the limit buckle loading groove (10) at the corresponding position, and the other end of each set of horizontal support springs (12) is fixedly installed on the side wall of the L-shaped fixing buckle (13) at the corresponding position.

5. The LED light strip fixing structure for an advertising light box according to claim 4, characterized in that, Each L-shaped fixing buckle (13) has a circular hole with the same diameter as the rotating rod (14) at the position corresponding to the rotating rod (14).

6. The LED light strip fixing structure for an advertising light box according to claim 5, characterized in that, One end of the vertical support spring (17) is fixedly installed on the inner wall of the top of the U-shaped buckle (7), and the other end of the vertical support spring (17) is fixedly installed on the outer wall of the top of the pressure plate (15).

7. The LED strip fixing structure for advertising light boxes according to claim 6, characterized in that, The U-shaped mounting base (1) has a base pad on the side wall near the advertising light box.

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