A testing device for an LED display screen with a sound-transparent structure

Abstract

This invention belongs to the field of LED display technology and provides a testing device for an LED display with a sound-permeable structure, including an LED module; several sound-permeable holes configured in an inverted cone shape; a PCB board installed at the rear end of the LED module, the PCB board having several channels; a cabinet installed outside the LED module and the PCB board, a bottom shell fixedly installed at the lower end of the cabinet, an adhesive layer provided at the lower end of the bottom shell, several LED beads installed inside the LED module, and the arrangement of the sound-permeable holes and channels according to the shape of the audio equipment; by setting the sound-permeable holes in an inverted cone shape, this invention firstly ensures that the sound is less obstructed during propagation, allowing the sound to pass more smoothly through the LED module and reach the audience or listeners. This design reduces sound loss during transmission, improves sound clarity and volume, and the inverted cone design also has a certain sound amplification effect.

Description

Technical Field

[0001] This invention belongs to the field of LED display technology, specifically a testing device for an LED display with a sound-transparent structure. Background Technology

[0002] Sound-transparent LED displays are innovative products that combine LED display technology and sound-transparent technology. Based on traditional LED displays, they achieve sound transmission through special design, thus solving the limitations of traditional LED displays in sound propagation. Their working principle usually involves embedding LEDs in mesh or microporous materials, so that sound can be transmitted through the holes, while LED light is emitted from these areas.

[0003] Currently, LED displays use round holes for sound transmission. However, especially outdoors, dust can easily enter the LED display through these holes. Long-term dust accumulation can damage internal components. Furthermore, LED displays often have multiple sound transmission holes in various locations. While this design can improve sound transmission, in certain situations (such as noisy outdoor environments), too many holes can actually act as a "noise amplifier," affecting the viewer's auditory experience. Additionally, having multiple sound transmission holes increases the overall sealing difficulty of the display.

[0004] Secondly, these LED displays also need to be tested by testing equipment during production, such as brightness testing, to improve the quality of the LED displays before they leave the factory.

[0005] Chinese patent CN114279692B discloses a detection method for a brightness detection device for an LED display screen. The device includes a main slide plate, a luminance meter fixedly connected to the upper surface of the main slide plate, a secondary slide plate fixedly connected to the rear of the main slide plate, a sorting device at the front of the main slide plate, a collection box fixedly connected to the right side of the main slide plate, a collection device fixedly connected to the inner wall of the collection box, a rotating plate rotatably connected to the inner wall of the main slide plate, a conductor fixedly connected to the upper surface of the rotating plate, and a collection device including an elastic plate with a transmission rod fixedly connected to the right side of the elastic plate. By tilting the main slide plate and the secondary slide plate, the LED display screen can be moved directly through the inclined plane.

[0006] However, this method relies on multiple components such as elastic plates, transmission rods, injection plates, and auxiliary plates to detect and recycle LED displays. These components need to work together seamlessly to recycle the LED displays. If any component malfunctions or there is a deviation in the transmission, the LED displays cannot be recycled. This increases the risk of misalignment or falling of the LED displays due to recycling errors, and increases the repetitive operations and waiting time caused by inaccurate transmission. This reduces the operating efficiency of the entire production line, extends the production cycle, and increases production costs.

[0007] To address this issue, those skilled in the art have proposed a detection device for an LED display screen with a sound-transparent structure. Summary of the Invention

[0008] To address the aforementioned technical problems, this invention provides a detection device for an LED display screen with a sound-transmitting structure, thereby resolving the issues in the background art.

[0009] An LED display screen with a sound-transparent structure, comprising:

[0010] LED modules;

[0011] A plurality of sound-transmitting holes are provided, and the sound-transmitting holes are constructed in an inverted conical shape;

[0012] A PCB board is installed at the rear end of the LED module, and the PCB board has several holes.

[0013] The enclosure is installed outside the LED module and PCB board. A bottom shell is fixedly installed at the lower end of the enclosure, and an adhesive layer is provided at the lower end of the bottom shell.

[0014] Preferably, the LED module has several LED beads installed inside.

[0015] Preferably, the shape of the plurality of sound-permeable holes and channels is arranged according to the shape of the audio equipment, and the enclosure and the LED module are connected by a plurality of mounting bolts.

[0016] A testing device for an LED display screen with a sound-transparent structure, comprising:

[0017] A support platform, on which a luminance meter is fixedly installed;

[0018] A conveying assembly, mounted on the upper part of a support platform, is used for inspecting and recycling LED displays. The conveying assembly includes a bracket fixedly mounted on the upper part of the support platform. A fixed rotating shaft 1 and a fixed rotating shaft 2 are rotatably mounted relative to each other at the rear end of the bracket. A main rotating shaft is rotatably mounted at the front end of the bracket. Guide rods are fixedly mounted on both sides of the bracket. Sliding frames are slidably mounted on the outer surfaces of the two guide rods. Support plates are fixedly mounted on one side of each of the two sliding frames. The support plates are slidably connected to the bracket. A movable rotating shaft 1 is rotatably mounted at the rear end of the sliding frame, and a movable rotating shaft 2 is rotatably mounted at the front end of the sliding frame. The outer surfaces of the fixed rotating shaft 1, fixed rotating shaft 2, main rotating shaft, movable rotating shaft 1, and movable rotating shaft 2 are connected by a conveyor belt.

[0019] The moving mechanism is mounted on the upper part of the support platform;

[0020] The recycling mechanism has two parts, both located on the upper end of the moving mechanism. The moving mechanism drives the recycling mechanism to move horizontally. The recycling mechanism includes a pneumatic lifting platform, on the upper end of which a recycling rack is placed.

[0021] Preferably, the conveying assembly further includes two telescopic cylinders fixedly installed on both sides of the bracket, and the output ends of the two telescopic cylinders are respectively fixedly connected to one side of the two sliding frames.

[0022] Preferably, a stepper motor is fixedly installed on one side of the bracket, and the output end of the stepper motor is fixedly connected to one end of the main shaft through a coupling.

[0023] Preferably, the moving mechanism includes a limiting groove fixedly installed on the upper end of the support platform, a threaded rod rotatably installed inside the limiting groove, two moving plates slidably installed relative to each other inside the limiting groove, and a threaded ring fixedly passing through the interior of each of the two moving plates. The threaded ring is threadedly connected to the threaded rod, and the upper end of the moving plate is fixedly connected to the lower end of the pneumatic lifting platform.

[0024] Preferably, a drive motor is fixedly installed at one end of the limiting groove, and the output end of the drive motor is fixedly connected to the threaded rod through a coupling.

[0025] Preferably, the recycling mechanism further includes a fixing plate fixedly installed on the upper end of the pneumatic lifting platform.

[0026] Preferably, a support plate is fixedly installed on the upper end of the pneumatic lifting platform, an electric push rod is fixedly installed on one side of the support plate, and a clamping plate is fixedly installed through the output end of the electric push rod through the support plate. The clamping plate cooperates with the fixed plate to clamp the recycling rack.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] This invention utilizes an inverted conical sound-permeable hole. Firstly, the inverted conical shape ensures less obstruction during sound propagation, allowing sound to pass more smoothly through the LED module and reach the audience. This design reduces sound loss during transmission, improving clarity and volume. The inverted conical shape also amplifies sound, enhancing the auditory experience in a specific direction. Secondly, the inverted conical design physically creates a barrier, making it more difficult for dust to enter the LED display under the influence of gravity and airflow. This characteristic is particularly important in outdoor or dusty environments, extending the lifespan of the LED display and reducing maintenance costs. Reducing dust entry also protects internal electronic components from dust and debris.

[0029] This invention reduces the number of openings in the LED module by creating inverted conical sound-permeable holes according to the shape of the actual audio equipment. This ensures smooth sound transmission. Secondly, reducing the number of openings means fewer physical weaknesses in the LED module. Each opening is a potential stress concentration point that could affect the overall structural strength of the LED display. Reducing unnecessary openings improves the module's durability and impact resistance, especially during transportation, installation, and use, reducing the risk of damage caused by vibration or external forces. Thirdly, it helps improve the LED module's waterproof and dustproof rating, protecting internal circuits and electronic components from moisture, corrosion, and short circuits. Finally, although the number of sound-permeable holes is reduced, each hole is designed inverted conical shape according to the actual shape of the audio equipment to ensure smooth sound transmission and achieve the desired acoustic effect. This helps reduce sound scattering and reflection during propagation, improving sound directionality and clarity, and providing viewers with a more realistic auditory experience.

[0030] 3. By setting up a conveyor component, this invention enables the conveyor belt to extend and retract. By adjusting the length and position of the conveyor belt, it ensures that the LED display screen can be accurately delivered to the designated recycling rack. This reduces the risk of misalignment or falling of the LED display screen due to recycling errors, and improves the stability and reliability of the entire production line. The conveyor belt can accurately deliver the LED display screen to the recycling rack, reducing repetitive operations and waiting time caused by inaccurate delivery. This helps to improve the operating efficiency of the entire production line, shorten the production cycle, and reduce production costs.

[0031] 4. This invention utilizes a pneumatic lifting platform for height adjustment. When a certain layer of the recycling rack is full, the pneumatic lifting platform automatically raises that layer, moving the next layer of recycling racks to the front of the conveyor belt to await receiving new LED displays. This design not only saves space but also improves the continuity and efficiency of recycling. The layered recycling design effectively avoids collisions between LED displays. Because each recycling rack is independent, it ensures that the LED displays maintain a stable spacing and position during recycling, reducing the risk of damage due to collisions. Attached Figure Description

[0032] Figure 1 A schematic diagram of the overall structure of an LED display screen detection device for an LED display screen with a sound-permeable structure;

[0033] Figure 2 A schematic diagram of the LED display screen separation structure of a detection device for an LED display screen with a sound-permeable structure;

[0034] Figure 3 A schematic diagram of the bottom structure of an LED display screen, which is a detection device for an LED display screen with a sound-permeable structure;

[0035] Figure 4 A cross-sectional view of an LED display screen, which is a detection device for an LED display screen with a sound-transparent structure;

[0036] Figure 5 A first-view structural diagram of a detection device for an LED display screen with a sound-transparent structure;

[0037] Figure 6 A schematic diagram of the second-view structure of a detection device for an LED display screen with a sound-transparent structure;

[0038] Figure 7 A schematic diagram of the transmission component of a detection device for an LED display screen with a sound-permeable structure.

[0039] Figure 8 A schematic diagram of the transmission component of a detection device for an LED display screen with a sound-permeable structure.

[0040] Figure 9 A third-view structural diagram of a detection device for an LED display screen with a sound-permeable structure;

[0041] Figure 10 A fourth-view structural diagram of a detection device for an LED display screen with a sound-permeable structure;

[0042] Figure 11 This is a schematic diagram of the moving mechanism of a detection device for an LED display screen with a sound-transparent structure.

[0043] In the picture:

[0044] 1. LED module; 2. LED bead; 3. Sound-permeable hole; 4. PCB board; 5. Hole; 6. Cabinet; 7. Mounting bolt; 8. Bottom shell; 9. Adhesive layer; 10. Support platform; 11. Luminometer; 12. Conveying assembly; 121. Bracket; 122. Fixed pivot one; 123. Fixed pivot two; 124. Main pivot; 125. Guide rod; 126. Sliding frame; 127. Telescopic cylinder; 128. Support plate ; 129. Moving shaft one; 1210. Moving shaft two; 1211. Conveyor belt; 1212. Stepper motor; 13. Moving mechanism; 131. Limiting groove; 132. Threaded rod; 133. Drive motor; 134. Moving plate; 14. Recycling mechanism; 141. Pneumatic lifting platform; 142. Recycling rack; 143. Fixing plate; 144. Support plate; 145. Electric push rod; 146. Clamping plate. Detailed Implementation

[0045] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0046] As attached Figure 1 To be continued Figure 11 As shown:

[0047] Example 1: This invention provides an LED display screen with a sound-transparent structure, comprising:

[0048] LED module 1;

[0049] Sound-permeable holes 3 are provided in a plurality of them, and the sound-permeable holes 3 are constructed in an inverted cone shape;

[0050] PCB board 4 is mounted at the rear end of LED module 1, and the PCB board 4 has a number of holes 5.

[0051] The housing 6 is installed outside the LED module 1 and the PCB board 4. A bottom shell 8 is fixedly installed at the lower end of the housing 6, and an adhesive layer 9 is provided at the lower end of the bottom shell 8.

[0052] The LED module 1 contains several LED beads 2.

[0053] The shape of the several sound-permeable holes 3 and the channels 5 is arranged according to the shape of the audio equipment, and the enclosure 6 and the LED module 1 are connected by several mounting bolts 7.

[0054] As can be seen from the above, by opening inverted conical sound-permeable holes 3 in the LED module 1 according to the actual shape of the audio equipment, the number of holes can be reduced firstly, ensuring that sound can pass through smoothly. Secondly, reducing the number of holes means reducing the physical weaknesses on the LED module 1. Each hole is a potential stress concentration point, which may affect the overall structural strength of the LED display. By reducing unnecessary holes, the durability and impact resistance of the LED module 1 can be improved, especially during transportation, installation and use, reducing the risk of damage caused by vibration or external force. Secondly, it helps to improve the waterproof and dustproof rating of the LED module 1, protecting the internal circuits and electronic components from moisture, corrosion and short circuits. Finally, although the number of sound-permeable holes 3 is reduced, each sound-permeable hole 3 is set to be inverted conical and designed according to the actual shape of the audio equipment to ensure that sound can pass through smoothly and achieve the expected acoustic effect. This helps to reduce the scattering and reflection of sound during propagation, improve the directionality and clarity of sound, and provide the audience with a more realistic listening experience.

[0055] The sound-permeable hole 3 is designed in an inverted cone shape. Firstly, the inverted cone shape of the sound-permeable hole 3 ensures that sound is less obstructed during propagation, allowing sound to pass more smoothly through the LED module 1 and reach the audience. This design reduces sound loss during transmission, improves sound clarity and volume. The inverted cone shape also has a certain sound amplification effect, strengthening the sound in a specific direction and enhancing the audience's auditory experience. Secondly, the inverted cone shape of the sound-permeable hole 3 physically forms a barrier, making it more difficult for dust to enter the LED display under the influence of gravity and airflow. This characteristic is especially important in outdoor or dusty environments, as it can extend the lifespan of the LED display and reduce maintenance costs. Reducing dust entry into the display also protects the internal electronic components from dust and debris.

[0056] By setting an adhesive layer 9 under the bottom shell 8, it is beneficial to protect the internal components of the LED display screen and prevent damage caused by external impact. At the same time, the adhesive layer 9 is designed on the bottom shell 8, which can be used to fix audio equipment such as vertical speakers, improving the ease of installation of the LED display screen.

[0057] Example 2: A testing device for an LED display screen with a sound-transparent structure provided by the present invention includes:

[0058] Support platform 10, on which a luminance meter 11 is fixedly installed;

[0059] A conveying assembly 12, installed on the upper end of the support platform 10, is used for inspecting and recycling LED displays. The conveying assembly 12 includes a bracket 121 fixedly installed on the upper end of the support platform 10. A fixed rotating shaft 122 and a fixed rotating shaft 123 are rotatably installed at the rear end of the bracket 121. A main rotating shaft 124 is rotatably installed at the front end of the bracket 121. Guide rods 125 are fixedly installed on both sides of the bracket 121. Sliding frames 126 are slidably installed on the outer surfaces of the two guide rods 125. Support plates 128 are fixedly installed on one side of the two sliding frames 126. The support plates 128 are slidably connected to the bracket 121. A movable rotating shaft 129 is rotatably installed at the rear end of the sliding frame 126. A movable rotating shaft 1210 is rotatably installed at the front end of the sliding frame 126. The outer surfaces of the fixed rotating shaft 122, the fixed rotating shaft 123, the main rotating shaft 124, the movable rotating shaft 129, and the movable rotating shaft 1210 are connected by a conveyor belt 1211.

[0060] The moving mechanism 13 is installed on the upper end of the support platform 10;

[0061] There are two recycling mechanisms 14, both of which are located on the upper end of the moving mechanism 13. The moving mechanism 13 drives the recycling mechanism 14 to move horizontally. The recycling mechanism 14 includes a pneumatic lifting platform 141, and a recycling rack 142 is placed on the upper end of the pneumatic lifting platform 141.

[0062] The conveying assembly 12 also includes two telescopic cylinders 127 fixedly installed on both sides of the bracket 121, and the output ends of the two telescopic cylinders 127 are respectively fixedly connected to one side of the two sliding frames 126.

[0063] A stepper motor 1212 is fixedly installed on one side of the bracket 121, and the output end of the stepper motor 1212 is fixedly connected to one end of the main shaft 124 through a coupling.

[0064] The moving mechanism 13 includes a limiting groove 131 fixedly installed on the upper end of the support platform 10. A threaded rod 132 is rotatably installed inside the limiting groove 131. Two moving plates 134 are slidably installed inside the limiting groove 131. Threaded rings are fixedly inserted inside each of the two moving plates 134. The threaded rings are threadedly connected to the threaded rod 132. The upper end of the moving plate 134 is fixedly connected to the lower end of the pneumatic lifting platform 141.

[0065] A drive motor 133 is fixedly installed at one end of the limiting groove 131, and the output end of the drive motor 133 is fixedly connected to the threaded rod 132 through a coupling.

[0066] The recycling mechanism 14 also includes a fixing plate 143 fixedly installed on the upper end of the pneumatic lifting platform 141.

[0067] A support plate 144 is fixedly installed on the upper end of the pneumatic lifting platform 141. An electric push rod 145 is fixedly installed on one side of the support plate 144. A clamping plate 146 is fixedly installed through the output end of the electric push rod 145 through the support plate 144. The clamping plate 146 cooperates with the fixing plate 143 to clamp the recycling rack 142.

[0068] As can be seen from the above, in order to improve the quality of LED displays during production, brightness detection is very important. When testing the brightness of an LED display, the LED display is placed under a luminance meter 11, the LED display is powered on, the luminance meter 11 detects the brightness of the LED display, and the result is fed back to the intelligent processing terminal of the testing device. The intelligent processing terminal determines whether it is a qualified product. There are two recycling mechanisms 14, and the two recycling racks 142 are divided into qualified recycling racks 142 and unqualified recycling racks 142. After the intelligent processing terminal judges the product quality based on the test results, it starts the drive motor 133 to drive the threaded rod 132 to rotate, so that the threaded rod 132 meshes with the threaded ring inside the moving plate 134, thereby driving the two moving plates 134 to slide inside the limiting groove 131, further driving the two recycling mechanisms 14 to move, so that the corresponding recycling rack 142 is at the front end of the conveying component 12.

[0069] After inspection, the LED display screen is pushed onto the conveyor belt 1211. The intelligent processing unit starts the stepper motor 1212, which drives the main shaft 124 to rotate. This causes the conveyor belt 1211 to move along the outer surfaces of the fixed shaft 122, fixed shaft 2 123, movable shaft 129, and movable shaft 2 1210, thus transporting the LED display screen. At the same time, the intelligent processing unit starts the telescopic cylinder 127, which pushes the sliding frame 126 forward on the guide rod 125, thereby driving the movable shaft 129 and movable shaft 2. 1210 moves forward, thereby driving the conveyor belt 1211 forward. While conveying the LED display screen, the front end of the conveyor belt 1211 extends into the recycling rack 142. The LED display screen, conveyed by the conveyor belt 1211, rests on the recycling rack 142. After inspection, the LED display screen is recycled. Then, the telescopic cylinder 127 drives the conveyor belt 1211 to retract for the next transport. The pneumatic lifting platform 141 is activated to push the recycling rack 142 upward, so that the unused LED display screens on the recycling rack 142 are removed. The LED display recycling layer is located at the front end of the conveyor belt 1211, awaiting the next inspection and recycling of the LED display. After multiple recycling layers of the recycling rack 142 have recycled the LED display, the electric push rod 145 is activated, causing the clamping plate 146 to move away from the recycling rack 142, thus removing the clamping of the recycling rack 142 and making it easier for workers to move the recycling rack 142. By setting the conveyor component 12, the conveyor belt 1211 can be extended and retracted. By adjusting the length and position of the conveyor belt 1211, it can be ensured that the LED display can be accurately delivered to the designated recycling rack 142, reducing the risk of LED display misalignment or falling due to LED display recycling errors, and improving the stability and reliability of the entire production line. The conveyor belt 1211 can accurately deliver the LED display to the recycling rack 142, reducing repetitive operations and waiting time caused by inaccurate delivery. This helps to improve the operating efficiency of the entire production line, shorten the production cycle, and reduce production costs. The height is adjusted by the pneumatic lifting platform 141. Once a recycling rack 142 on a certain level is full, the pneumatic lifting platform 141 automatically raises that level, allowing the next recycling rack 142 to move to the front of the conveyor belt 1211, ready to receive new LED displays. This design not only saves space but also improves the continuity and efficiency of recycling. The layered recycling design effectively avoids collisions between LED displays. Because each recycling rack 142 is independent, it ensures that the LED displays maintain a stable spacing and position during recycling, reducing the risk of damage due to collisions.

[0070] Example 3: Combining Examples 1 and 2, this device is applied to a real-world scenario. Currently, the sound-permeable holes of LED displays are round holes. However, during use, especially outdoors, dust can easily enter the LED display through these holes. Long-term dust accumulation can easily damage the internal components of the LED display. This device, by changing the structure and arrangement of the sound-permeable holes, has the advantages of reducing dust entering the display, protecting the internal electronic components from dust and debris, and improving the module's durability and impact resistance.

[0071] All standard parts used in this invention can be purchased commercially, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0072] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0073] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0074] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] The accompanying drawings of the embodiments disclosed in this invention only involve structures relevant to the embodiments disclosed in this invention. Other structures can be referred to with common designs. Unless otherwise specified, the same embodiment and different embodiments of this invention can be combined with each other.

[0077] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A testing device for an LED display screen with a sound-transparent structure, characterized in that: include: A support platform (10) is provided, and a luminance meter (11) is fixedly installed on the upper end of the support platform (10). A conveying assembly (12), installed on the upper end of a support platform (10), is used for inspecting and recycling LED displays. The conveying assembly (12) includes a bracket (121) fixedly installed on the upper end of the support platform (10). A fixed rotating shaft one (122) and a fixed rotating shaft two (123) are rotatably mounted relative to each other at the rear end of the bracket (121). A main rotating shaft (124) is rotatably mounted at the front end of the bracket (121). Guide rods (125) are fixedly installed on both sides of the bracket (121). Sliding frames (126) are slidably mounted on the outer surfaces of both guide rods (125). Support plates (128) are fixedly installed on one side of each of the two sliding frames (126). The support plate (128) is slidably connected to the bracket (121). The rear end of the sliding frame (126) is rotatably mounted with a movable rotating shaft one (129), and the front end of the sliding frame (126) is rotatably mounted with a movable rotating shaft two (1210). The outer surfaces of the fixed rotating shaft one (122), the fixed rotating shaft two (123), the main rotating shaft (124), the movable rotating shaft one (129), and the movable rotating shaft two (1210) are connected by a transmission belt (1211). The transmission assembly (12) also includes two telescopic cylinders (127) fixedly mounted on both sides of the bracket (121). The output ends of the two telescopic cylinders (127) are respectively fixedly connected to one side of the two sliding frames (126). The moving mechanism (13) is installed on the upper end of the support platform (10). The moving mechanism (13) includes a limiting groove (131) fixedly installed on the upper end of the support platform (10). A threaded rod (132) is rotatably installed inside the limiting groove (131). Two moving plates (134) are slidably installed inside the limiting groove (131). A threaded ring is fixedly inserted inside each of the two moving plates (134). The threaded ring is threadedly connected to the threaded rod (132). The upper end of the moving plate (134) is fixedly connected to the lower end of the pneumatic lifting platform (141). There are two recycling mechanisms (14), both located on the upper end of the moving mechanism (13). The moving mechanism (13) drives the recycling mechanism (14) to move horizontally. The recycling mechanism (14) includes a pneumatic lifting platform (141), and a recycling rack (142) is placed on the upper end of the pneumatic lifting platform (141).

2. The detection device for an LED display screen with a sound-transmitting structure as described in claim 1, characterized in that: A stepper motor (1212) is fixedly installed on one side of the bracket (121), and the output end of the stepper motor (1212) is fixedly connected to one end of the main shaft (124) through a coupling.

3. The detection device for an LED display screen with a sound-transmitting structure as described in claim 1, characterized in that: A drive motor (133) is fixedly installed at one end of the limiting groove (131), and the output end of the drive motor (133) is fixedly connected to the threaded rod (132) through a coupling.

4. The detection device for an LED display screen with a sound-transmitting structure as described in claim 1, characterized in that: The recycling mechanism (14) also includes a fixing plate (143) fixedly installed on the upper end of the pneumatic lifting platform (141).

5. The detection device for an LED display screen with a sound-transmitting structure as described in claim 4, characterized in that: A support plate (144) is fixedly installed on the upper end of the pneumatic lifting platform (141). An electric push rod (145) is fixedly installed on one side of the support plate (144). A clamping plate (146) is fixedly installed through the output end of the electric push rod (145) through the support plate (144). The clamping plate (146) cooperates with the fixing plate (143) to clamp the recycling rack (142).

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