LED display screen mask buckle structure

Abstract

This invention relates to the field of LED display technology, and more particularly to an LED display screen cover snap-fit ​​structure. The LED display screen cover snap-fit ​​structure includes: a lamp board with multiple LED beads arranged in a matrix on its upper surface; multiple snap-fit ​​components are fixedly connected to the upper surface of the lamp board; the lamp board is detachably and fixedly connected to the cover via the snap-fit ​​components; each snap-fit ​​component includes a mounting post, a support platform, a snap-fit ​​post, a radial telescopic limit block, a press button, a beveled pressure block, and a spring reset component. The limit block achieves a self-locking engagement between the cover and the lamp board, and the press button drives the beveled mechanism to achieve tool-less unlocking. The LED display screen cover snap-fit ​​structure provided by this invention has the advantages of convenient and efficient assembly and disassembly, high connection strength, good weather resistance, and long service life. It can avoid damage to disassembled components, while optimizing the display effect and protective performance of the display screen, and is suitable for indoor and outdoor LED displays.

Description

Technical Field

[0001] This invention relates to the field of LED display technology, and in particular to an LED display screen mask clip structure. Background Technology

[0002] LED displays are display devices that present text, images, videos, and other information by controlling semiconductor light-emitting diodes. They are widely used in outdoor advertising media, live sports broadcasts, traffic guidance, stage performance backdrops, and indoor conference displays. The LED cover, as one of the core components of an LED display, is mainly used to protect the LED beads on the light board from external impacts, dust corrosion, and rain immersion. It also effectively improves the contrast of the display, reduces glare interference, and enhances the overall display effect and lifespan.

[0003] In existing technologies, the fixing and connection methods between LED display screen covers and light panels are mainly divided into two categories: screw fixing and clip fixing. Screw fixing involves using multiple screws to lock the cover to the light panel point by point. While the connection is relatively secure, the disassembly and assembly process is cumbersome, especially in the maintenance of large-area displays, where each screw needs to be removed and installed individually, which is time-consuming and labor-intensive, severely impacting maintenance efficiency. Furthermore, screws exposed to outdoor environments for extended periods are prone to corrosion and stripping, affecting repeated disassembly and assembly performance and potentially damaging the waterproof sealing structure of the light panel. Traditional clip fixing methods often use an integrated plastic clip structure, achieving the engagement and connection between the cover and the light panel through the elastic deformation of the clips. While relatively convenient for disassembly and assembly, this method has several drawbacks.

[0004] Firstly, the connection strength is insufficient and the reliability is poor: the material strength of traditional plastic buckles is limited, and they are prone to breakage and damage when frequently disassembled or subjected to external impact, causing the face shield to loosen or even fall off, which cannot effectively protect the LED beads; in addition, plastic buckles are prone to aging and becoming brittle in harsh environments such as alternating high and low temperatures and ultraviolet radiation, which greatly shortens their service life.

[0005] Secondly, disassembly is inconvenient and easily damages components: Traditional buckle disassembly usually requires the use of tools such as screwdrivers to pry the edge of the mask, which is not only difficult to operate, but also very easy to deform, scratch or even damage the LED beads on the light board, increasing maintenance costs.

[0006] Therefore, it is necessary to provide a new LED display screen cover clip structure to solve the above-mentioned technical problems. Summary of the Invention

[0007] To solve the above-mentioned technical problems, the present invention provides an LED display screen cover buckle structure.

[0008] The LED display screen cover buckle structure provided by the present invention includes: a lamp board, wherein multiple LED beads are arranged in a matrix on the upper surface of the lamp board, and multiple buckle components are fixedly connected to the upper surface of the lamp board, and a cover is detachably and fixedly connected to the lamp board through the buckle components.

[0009] Preferably, the buckle assembly includes a mounting post, which is inserted into the lamp panel and fixedly connected to it; a support is fixedly connected to the top of the mounting post, and the upper surface of the support abuts against the lower surface of the face mask; a buckle post is fixedly connected to the top of the support, and multiple sliding grooves are evenly spaced along the circumference of the top of the buckle post, and a limiting block is slidably connected in each sliding groove, wherein the limiting block abuts against the upper surface of the face mask in the buckled state.

[0010] Preferably, guide posts are fixedly connected to both sides of the limiting block, and guide grooves are correspondingly provided on the sidewalls of the slide groove, with the guide posts and guide grooves being slidably connected.

[0011] Preferably, the top of the limiting block near the buckle post has a first pressing slope; the top of the buckle post is slidably connected to a button, and the bottom surface of the button is fixedly connected with multiple pressure blocks at equal intervals along its circumference. The number of pressure blocks is equal to the number of the limiting block, and the bottom of the pressure block has a second pressing slope that presses against the first pressing slope.

[0012] Preferably, the top of the buckle post is provided with a plurality of limiting grooves along the axial direction, and a limiting block is slidably connected in each limiting groove, and the limiting block is fixedly connected to the side wall of the button.

[0013] Preferably, each of the slide grooves is provided with a spring inside, one end of the spring is fixedly connected to the inner wall of the slide groove near the axis of the buckle post, and the other end of the spring is fixedly connected to the limiting block. The spring is used to drive the limiting block to slide away from the axis of the buckle post.

[0014] Preferably, the upper surface of the mask has a first locking position that corresponds to and engages with the LED beads on the light panel, and a second locking position through which the buckle post passes.

[0015] Preferably, the upper surface of the mask is provided with an arcuate groove that is recessed toward the lower surface of the mask around each of the first slots.

[0016] Preferably, the top of the limiting block near the inner wall of the second locking position has a guide slope of 30° to 45°, which is used to guide the limiting block to slide in the direction of the buckle column axis when the mask is installed.

[0017] Preferably, the gap between the side wall of the first locking position of the face mask and the LED bead is 0.25mm to 0.3mm; the buckle assembly is made of metal material, and the face mask is made of glass fiber reinforced PC modified UV-resistant flame-retardant plastic.

[0018] Compared with related technologies, the LED display screen cover buckle structure provided by the present invention has the following beneficial effects: This invention eliminates the tedious process of individually tightening screws required by traditional screw fixing methods, and avoids the inconvenience of prying apart traditional plastic clips with a screwdriver. During installation, simply align the cover with the light panel and press vertically; the automatic extension and retraction of the limit blocks will complete the self-locking engagement. During disassembly, simply use a multi-point pressing tool to align with and press the button on the top of the clip post; this will simultaneously drive all limit blocks to retract, allowing for easy vertical removal of the cover. The installation and removal time for a single cover is significantly reduced compared to traditional screw fixing methods, making it particularly suitable for on-site maintenance of large-area LED displays, greatly reducing downtime and significantly improving maintenance efficiency.

[0019] The buckle assembly of this invention is made entirely of metal, which, compared to traditional one-piece plastic buckles, offers higher tensile strength, impact resistance, and fatigue resistance. It can withstand frequent disassembly and external impacts without breaking. Multiple limiting blocks are evenly distributed along the circumference of the buckle post, ensuring uniform force distribution during engagement and providing a stable and reliable limiting force, effectively preventing the face mask from loosening, warping, or even falling off. Furthermore, the metal material possesses excellent weather resistance, adapting to harsh outdoor environments such as alternating high and low temperatures, ultraviolet radiation, and rain erosion, without exhibiting the aging, brittleness, and performance degradation problems common with plastic buckles.

[0020] This invention employs a purely vertical installation and disassembly method, completely eliminating the shearing and prying forces generated by prying the edge of the mask during traditional buckle disassembly. This fundamentally avoids problems such as mask deformation, scratches, cracking, and damage to LED beads on the light board. The guide posts on both sides of the limiting block slide in conjunction with the guide grooves on the sidewalls of the slide, ensuring precise and stable sliding trajectory of the limiting block and preventing skewing, jamming, or disengagement from the slide, thus ensuring smooth and reliable locking and unlocking actions. Furthermore, a reasonable gap of 0.25mm to 0.3mm is reserved between the sidewall of the first locking position of the mask and the LED beads. This ensures smooth mask installation without compromising the LED beads due to excessively small gaps, significantly reducing component wear and replacement costs during maintenance.

[0021] The face shield of this invention is made of glass fiber reinforced PC modified UV-resistant and flame-retardant plastic, possessing excellent mechanical strength, impact resistance, UV aging resistance, and flame-retardant properties. It effectively protects LED beads from external impacts, dust corrosion, and rain immersion. The downward-facing concave arc grooves around each first locking position on the face shield effectively concentrate the light emitted by the LED beads, reducing light scattering and improving the display brightness. Simultaneously, it significantly reduces external light reflection, minimizing glare interference and improving the display's contrast and viewing comfort. The reasonable gap design also effectively prevents light crosstalk between adjacent LED beads, further enhancing display clarity. Furthermore, the metal buckle assembly will not rust or strip, and will not damage the waterproof sealing structure of the LED board, ensuring the overall protection level of the display screen. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the LED display screen cover buckle structure provided by the present invention; Figure 2 for Figure 1 The diagram shown is a structural schematic of the face mask. Figure 3 for Figure 2 A schematic diagram of the cross-section of the mask shown; Figure 4 for Figure 3 A schematic diagram of the cross-section of the buckle post shown; Figure 5 for Figure 3 The diagram shows the structure of the chute. Figure 6 for Figure 4 The diagram shows a cross-sectional view of the button.

[0023] The following are the labels in the diagram: 1. Light panel; 2. LED beads; 3. Clip assembly; 4. Face mask; 5. Mounting post; 6. Support platform; 7. Clip post; 8. Slide groove; 9. Limiting block; 10. Guide post; 11. First extrusion slope; 12. Button; 13. Pressure block; 14. Second extrusion slope; 15. Limiting groove; 16. Limiting block; 17. Spring; 18. First locking position; 19. Second locking position; 20. Arc groove; 21. Guide slope. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the invention and are not intended to limit the invention.

[0025] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0026] like Figures 1 to 6 As shown, an LED display screen cover 4 snap-fit ​​structure includes: a lamp board 1, a plurality of LED beads arranged in a matrix on the upper surface of the lamp board 1, a plurality of snap-fit ​​components 3 fixedly connected to the upper surface of the lamp board 1, and a cover 4 detachably and fixedly connected to the lamp board 1 through the snap-fit ​​components 3.

[0027] The faceplate 4 is made of glass fiber reinforced PC modified UV-resistant and flame-retardant plastic, which has good mechanical strength, impact resistance, UV aging resistance and flame retardancy. It can effectively protect the LED beads from external impact and environmental corrosion, while ensuring the safety of the display screen. The upper surface of the faceplate 4 has a first locking position 18 that corresponds to the LED beads on the lamp board 1 and a second locking position 19 for the fastener post 7 to pass through. Both the first locking position 18 and the second locking position 19 are through holes that pass through the faceplate 4. The gap between the side wall of the first locking position 18 and the LED bead is 0.25mm to 0.3mm. This gap can ensure that the faceplate 4 can be installed smoothly and avoid damage to the LED beads due to excessive gap. It can also prevent dust and rainwater from entering the interior of the faceplate 4 due to excessive gap. At the same time, it can effectively reduce light crosstalk between adjacent LED beads and improve the display screen's clarity and contrast.

[0028] like Figures 2 to 6 As shown, the snap-fit ​​assembly 3 is made entirely of metal, preferably aluminum alloy or stainless steel, possessing high tensile strength, impact resistance, and weather resistance. It can withstand harsh outdoor environments such as alternating high and low temperatures and ultraviolet radiation, avoiding aging and breakage. The snap-fit ​​assembly 3 includes a mounting post 5, which is inserted into and fixedly connected to the lamp panel 1. The mounting post 5 can be fixed to the lamp panel 1 through interference fit, welding, or threaded connection, with the appropriate fixing method selected based on the actual production process and connection strength requirements. A support platform 6 is fixedly connected to the top of the mounting post 5. The diameter of the support platform 6 is larger than the diameter of the mounting post 5 and the diameter of the snap-fit ​​post 7. The upper surface of the support platform 6 is a flat support surface used to abut against the lower surface of the face mask 4, supporting the weight of the face mask 4 and precisely limiting the installation depth of the face mask 4, ensuring that the surface of the face mask 4 is flat after installation and will not dent or warp.

[0029] like Figures 3 to 5As shown, a snap-fit ​​post 7 is fixedly connected to the top of the support platform 6. Multiple sliding grooves 8 are evenly spaced along the circumference of the top of the snap-fit ​​post 7. The number of sliding grooves 8 can be flexibly selected to ensure sufficient locking strength while simplifying the structure and reducing processing difficulty. A limiting block 9 is slidably connected within each sliding groove 8. The length of the limiting block 9 is greater than the depth of the sliding groove 8. In the snap-fit ​​state, the outer end of the limiting block 9 extends out of the sliding groove 8 and abuts against the upper surface of the face shield 4. Guide posts 10 are fixedly connected to both sides of the limiting block 9. Guide grooves are correspondingly provided on the sidewalls of the sliding groove 8. The guide posts 10 are slidably connected to the guide grooves. The length of the guide grooves matches the maximum sliding stroke of the limiting block 9, limiting the sliding trajectory of the limiting block 9 and preventing it from tilting, shaking, or dislodging from the sliding groove 8 during sliding, ensuring the smoothness and reliability of the locking and unlocking actions.

[0030] like Figures 4 to 6 As shown, the top of the limiting block 9 near the axis of the buckle post 7 has a first pressing slope 11. The angle between the first pressing slope 11 and the axis of the buckle post 7 is preferably 45°, which can achieve the best slope transmission efficiency and convert the axial pressing force of the button 12 into the radial sliding driving force of the limiting block 9 to the maximum extent. The top of the buckle post 7 is slidably connected to the button 12. The top surface of the button 12 is slightly higher than the upper surface of the mask 4, which is convenient for finger pressing operation. Multiple pressure blocks 13 are fixedly connected at equal intervals along the circumference of the bottom surface of the button 12. The number of pressure blocks 13 is equal to the number of limiting blocks 9 and their positions correspond one-to-one. The bottom of the pressure block 13 has a second pressing slope 14 that presses against the first pressing slope 11. The inclination angle of the second pressing slope 14 is the same as that of the first pressing slope 11, which ensures that the two can fit tightly and achieve smooth pressing transmission.

[0031] like Figure 4 and Figure 6 As shown, the top of the latching post 7 has multiple limiting grooves 15 along the axial direction. The number of limiting grooves 15 is equal to the number of pressure blocks 13 and they are staggered. Each limiting groove 15 has a limiting block 16 slidably connected to it, and the limiting block 16 is fixedly connected to the side wall of the button 12. The length of the limiting groove 15 matches the maximum sliding stroke of the button 12, which is used to limit the sliding stroke and sliding direction of the button 12, preventing the button 12 from rotating or coming off the top of the latching post 7 during sliding. At the same time, it can ensure that the pressure block 13 and the limiting block 9 always maintain an accurate alignment relationship, avoiding the problem of misalignment and jamming.

[0032] like Figures 5 to 6As shown, each slide groove 8 is internally equipped with a spring 17. The spring 17 is made of stainless steel, which has good elasticity and corrosion resistance, ensuring stable elastic performance even after long-term repeated use. One end of the spring 17 is fixedly connected to the inner wall of the slide groove 8 near the axis of the latching post 7, and the other end of the spring 17 is fixedly connected to the end of the limit block 9 near the axis of the latching post 7. The spring 17 is always in a pre-compressed state, used to continuously drive the limit block 9 to slide away from the axis of the latching post 7, realizing the automatic extension of the limit block 9 in the engaged state and the automatic reset after unlocking.

[0033] like Figure 6 As shown, the top of the end of the limiting block 9 near the inner wall of the second locking position 19 is provided with a guide slope 21 of 30° to 45°. The preferred inclination angle of the guide slope 21 is 35°, which can ensure sufficient guiding effect, making the installation process of the mask 4 smoother and less strenuous, and can also prevent the limiting block 9 from being accidentally pushed back after locking due to excessive inclination angle, thus ensuring the reliability of the locking connection.

[0034] The working principle of the LED display screen cover 4-clasp structure provided by this invention is as follows: Installation process First, the snap-fit ​​assembly 3 is fixedly connected to the upper surface of the lamp plate 1 via the mounting post 5, so that multiple snap-fit ​​assemblies 3 are evenly distributed on the lamp plate 1. Then, the face mask 4 is aligned with the lamp plate 1, so that the first snap-fit ​​position 18 on the face mask 4 is aligned with the LED beads on the lamp plate 1, and the second snap-fit ​​position 19 on the face mask 4 is aligned with the snap-fit ​​post 7 on the lamp plate 1. The face mask 4 is pressed smoothly towards the lamp plate 1. At this time, the inner wall of the second snap-fit ​​position 19 first contacts the guide slope 21 at the end of the limiting block 9. As the pressing pressure is continuously applied, the guide slope 21 is subjected to radial extrusion force from the inner wall of the second snap-fit ​​position 19. This extrusion force is decomposed into a component force along the axial direction of the snap-fit ​​post 7 and a component force radially inward along the snap-fit ​​post 7. The radially inward component force drives the limiting block 9 to slide along the slide groove 8 towards the axis of the snap-fit ​​post 7, while compressing the spring 17 inside the slide groove 8. During this process, the guide posts 10 on both sides of the limiting block 9 slide synchronously along the guide groove on the side wall of the slide groove 8, ensuring that the sliding direction of the limiting block 9 is stable and that there will be no deviation, jamming or dislodging from the slide groove 8. When the lower surface of the mask 4 is fully in contact with the upper surface of the support 6 of the buckle assembly 3, the limiting block 9 completely passes through the second locking position 19. At this time, the squeezing force of the inner wall of the second locking position 19 on the guide inclined surface 21 disappears, the spring 17 releases elastic potential energy, and drives the limiting block 9 to slide and reset along the slide groove 8 in a direction away from the axis of the buckle post 7, until the lower surface of the limiting block 9 is tightly in contact with the upper surface of the mask 4, realizing a firm self-locking snap-fit ​​connection between the mask 4 and the lamp panel 1.

[0035] Disassembly process When the face mask 4 needs to be removed for maintenance, press the button 12 on the top of the latching post 7 directly with your finger. The button 12 slides downward along the axial direction of the latching post 7. At the same time, the limiting block 16 on the side wall of the button 12 slides synchronously along the limiting groove 15 at the top of the latching post 7, ensuring that the sliding direction of the button 12 is stable and will not rotate or come off the top of the latching post 7. When the button 12 slides downward, the multiple pressure blocks 13 fixedly connected to its bottom surface move downward synchronously. The second pressing slope 14 at the bottom of the pressure block 13 contacts the first pressing slope 11 at the end of the limiting block 9 and generates a pressing action. This pressing action is decomposed into a component force along the axial direction of the latching post 7 and a component force radially inward along the latching post 7. The radially inward component force drives the limiting block 9 to slide along the slide groove 8 towards the axis of the latching post 7, while further compressing the spring 17. When the limiting block 9 is fully retracted into the slide groove 8, the limiting effect between the limiting block 9 and the upper surface of the mask 4 disappears, and the mask 4 can be easily removed vertically from the lamp panel 1. After releasing the button 12, the spring 17 releases its elastic potential energy, driving the limiting block 9 to slide back to its original position along the slide groove 8 away from the axis of the snap-on post 7. At the same time, the limiting block 9 presses the pressure block 13 upward through the first pressing inclined surface 11, causing the button 12 to slide back to its original position along the axis of the snap-on post 7 until the limiting block 16 abuts against the inner wall of the top of the limiting groove 15. The button 12 then returns to its initial position, ready for the next installation and use.

[0036] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An LED display screen mask buckle structure, characterized in that, include: The lamp board (1) has multiple LED beads (2) arranged in a matrix on its upper surface. Multiple snap-fit ​​components (3) are fixedly connected to the upper surface of the lamp board (1). A face mask (4) is detachably and fixedly connected to the lamp board (1) through the snap-fit ​​components (3).

2. The LED display screen mask (4) buckle structure according to claim 1, characterized in that, The buckle assembly (3) includes a mounting post (5), which is inserted into the lamp plate (1) and fixedly connected to the lamp plate (1); a support platform (6) is fixedly connected to the top of the mounting post (5), and the upper surface of the support platform (6) abuts against the lower surface of the mask (4); a buckle post (7) is fixedly connected to the top of the support platform (6), and multiple sliding grooves (8) are equally spaced along the circumference of the top of the buckle post (7), and a limiting block (9) is slidably connected in each sliding groove (8), and the limiting block (9) abuts against the upper surface of the mask (4) in the buckled state.

3. The snap-fit ​​structure of the LED display screen cover (4) according to claim 2, characterized in that, The limiting block (9) is fixedly connected to guide posts (10) on both sides, and the side wall of the slide groove (8) is provided with a guide groove, and the guide posts (10) are slidably connected to the guide groove.

4. The snap-fit ​​structure of the LED display screen cover (4) according to claim 2, characterized in that, The limiting block (9) has a first pressing slope (11) at the top of one end near the buckle post (7); a button (12) is slidably connected to the top of the buckle post (7), and multiple pressure blocks (13) are fixedly connected at equal intervals along the bottom surface of the button (12) in its circumference. The number of pressure blocks (13) is equal to the number of the limiting block (9), and a second pressing slope (14) is provided at the bottom of the pressure block (13) to press and cooperate with the first pressing slope (11).

5. The snap-fit ​​structure of the LED display screen cover (4) according to claim 4, characterized in that, The top of the buckle post (7) is provided with multiple limiting grooves (15) along the axial direction. Each limiting groove (15) is slidably connected to a limiting block (16), and the limiting block (16) is fixedly connected to the side wall of the button (12).

6. The snap-fit ​​structure of the LED display screen cover (4) according to claim 2, characterized in that, Each of the slide grooves (8) is provided with a spring (17) inside. One end of the spring (17) is fixedly connected to the inner wall of the slide groove (8) near the axis of the buckle post (7), and the other end of the spring (17) is fixedly connected to the limiting block (9). The spring (17) is used to drive the limiting block (9) to slide away from the axis of the buckle post (7).

7. The snap-fit ​​structure of the LED display screen cover (4) according to claim 2, characterized in that, The upper surface of the mask (4) is provided with a first locking position (18) that corresponds to the LED beads (2) on the light panel (1) and a second locking position (19) through which the buckle post (7) passes.

8. The snap-fit ​​structure of the LED display screen cover (4) according to claim 7, characterized in that, The upper surface of the mask (4) is provided with an arc-shaped groove (20) that is recessed toward the lower surface of the mask (4) around each first slot (18).

9. The snap-fit ​​structure of the LED display screen cover (4) according to claim 2, characterized in that, The top of the limiting block (9) near the inner wall of the second locking position (19) has a guide slope (21) of 30° to 45°. The guide slope (21) is used to guide the limiting block (9) to slide in the direction of the axis of the buckle post (7) when the mask (4) is installed.

10. The LED display screen cover (4) snap-fit ​​structure according to claim 7, characterized in that, The gap between the side wall of the first locking position (18) of the face mask (4) and the LED bead (2) is 0.25mm to 0.3mm; the buckle assembly (3) is made of metal material, and the face mask (4) is made of glass fiber reinforced PC modified anti-UV flame retardant plastic.

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