A linkage giant screen mounting structure

Abstract

This application provides a linked giant screen installation structure, relating to the field of screen splicing technology. It includes a fixed frame with lifting devices at both ends, a lifting plate between the two lifting devices, two insertion boxes fixedly mounted on the rear end of the lifting plate, a screen panel mounted on the front end of the lifting plate, and two insertion rods fixedly mounted on the rear end of the screen panel. The rear end of each insertion rod is installed in a corresponding insertion box. A positioning plate is fixedly mounted on the rear end of the lifting plate, positioned between the two insertion boxes. Auxiliary springs are fixedly mounted on both ends of the positioning plate, and a moving rod penetrating the insertion box is fixedly mounted on the other end of each auxiliary spring. Each moving rod has a limiting groove. This device automatically completes the snap-fit ​​fixing using the elastic force of the auxiliary springs, is simple to operate, and has a fast installation speed. Furthermore, pressing the two moving rods towards each other releases the snap-fit ​​limit, allowing for quick disassembly of the screen panel.

Description

Technical Field

[0001] This invention relates to the field of screen splicing technology, and more specifically, to a linked giant screen installation structure. Background Technology

[0002] With the rapid growth in demand for immersive, integrated, and dynamically collaborative displays in smart cities, digital exhibition halls, command and dispatch centers, and performing arts and cultural tourism scenarios, interconnected giant screen systems have evolved from fixed video walls to multi-unit interconnected forms that can be moved, separated, and coordinated in posture. Interconnected giant screens typically consist of multiple independent display modules / screens, achieving synchronous movement, alignment, angle adjustment, and image fusion through mechanical transmission and electronic control. Their installation structure must simultaneously meet multiple requirements, including high-precision positioning, high rigidity load-bearing capacity, synchronous linkage, rapid assembly and adjustment, long-term stability, and convenient maintenance, becoming a key factor restricting the overall display effect and system reliability.

[0003] Currently, the mainstream large-screen installation and splicing technology is still mainly based on fixed splicing, which generally uses floor-mounted racks or pre-embedded steel structures as the load-bearing foundation, and unit splicing is achieved by bolt fastening and positioning pins. This type of structure can meet basic use in static splicing scenarios, but it has obvious technical shortcomings when facing the needs of linkage movement, dynamic splicing, and frequent debugging. Moreover, after the display screen is installed, it is inconvenient to disassemble and install the display screen, which makes it difficult for maintenance personnel to disassemble and repair it when a failure occurs during later use, thus affecting its use.

[0004] Therefore, we have made improvements and proposed a linked giant screen installation structure. Summary of the Invention

[0005] The purpose of this invention is to address the problem that, in the prior art, the display screen is inconvenient to disassemble and reassemble after installation, which makes it difficult for maintenance personnel to disassemble and repair it when a malfunction occurs during later use, thus affecting its use.

[0006] To achieve the above-mentioned objectives and improve the above-mentioned problems, the present invention provides a linkage giant screen installation structure, including a fixed frame, with lifting devices respectively provided at both ends of the fixed frame, a lifting plate installed between the two lifting devices, two insertion boxes fixedly installed on the rear end face of the lifting plate, a screen panel installed on the front end face of the lifting plate, and two insertion rods fixedly installed on the rear end face of the screen panel. The rear end of each insertion rod is installed in a corresponding insertion box. A positioning plate is fixedly installed on the rear end face of the lifting plate, and the positioning plate is disposed between the two insertion boxes. Auxiliary springs are fixedly installed on both ends of the positioning plate, and a moving rod penetrating the insertion box is fixedly installed on the other end of each auxiliary spring. A limiting groove is formed on each moving rod, and a limiting rod is provided inside each limiting groove. One end of each limiting rod is fixedly installed on the lifting plate.

[0007] Preferably, the lifting device includes side boxes, and side boxes are fixedly installed at both ends of the front side of the fixed frame. A drive slider is slidably installed inside each end of each side box, and a swing rod is rotatably installed on each drive slider. A parallel rod is installed between the other ends of two swing rods located on the same side. The lifting plate is fixedly installed on the two parallel rods, and an adjustment device is provided inside each side box.

[0008] Preferably, the adjusting device includes a bidirectional lead screw, with a bidirectional lead screw rotatably mounted inside each of the side boxes, and each driving slider threaded onto one end of the bidirectional lead screw. A sprocket assembly is installed between the two bidirectional lead screws, and the sprocket assembly is located on one side of the two side boxes. An adjusting wheel is provided on the sprocket assembly. A fixing block is fixedly installed in the middle of each side box, and two guide bars are fixedly installed on the rear end face of each parallel rod, with each guide bar passing through the corresponding fixing block.

[0009] Preferably, four support rods are fixedly installed on the rear end face of the fixed frame, and a reinforcing plate is fixedly installed between the rear end faces of the four support rods. A pad is fixedly installed on the rear end face of the reinforcing plate, and multiple mounting slots are evenly provided on the pad. Each mounting slot is provided with a bolt hole.

[0010] Preferably, each of the fixed frames has a protrusion fixedly installed at both ends, a rectangular box fixedly installed at the other end of each protrusion, an internal block fixedly installed in the middle of each rectangular box, a threaded rod detachably installed on each rectangular box, and a connecting device provided on one side of each rectangular box. The connecting device includes a connecting block, and two insertion shafts are fixedly installed at both ends of each connecting block. Each insertion shaft matches the corresponding rectangular box.

[0011] Preferably, two reinforcing cylinders are fixedly installed on the front end face of the reinforcing plate, and the two reinforcing cylinders are arranged on both sides of the lifting plate. A pushing device is arranged between the two reinforcing cylinders. A lifting rod is fixedly installed at both ends of the pushing device. A round box is fixedly installed at the other end of each lifting rod. A round hole is opened at the other end of each round box. Two fixing boxes are evenly fixedly installed on the side surface of each round box. A sliding rod is slidably installed inside each fixing box. A compression spring is fixedly installed at one end of each sliding rod and the outer end of the fixing box. An inclined block is fixedly installed at the other end of each sliding rod. A rectangular hole is opened on the side of each fixing box. A limiting block located inside the rectangular hole is fixedly installed on each sliding rod. Two self-locking devices are provided on the rear end face of the screen panel. Each self-locking device matches the corresponding round hole.

[0012] Preferably, the self-locking device includes a bottom rod, each bottom rod is fixedly installed on the rear end face of the screen panel, each bottom rod corresponds to a circular hole on the same side, an extension shaft is fixedly installed at the rear end of each bottom rod, a first frustum is fixedly installed at the rear top end of each extension shaft, a sleeve is sleeved on the extension shaft, a second frustum is fixedly installed on the front end face of the sleeve, the second frustum is sleeved on the extension shaft, a pressure spring is installed between the second frustum and the bottom rod, and the pressure spring is sleeved on the extension shaft.

[0013] Preferably, the pushing device includes a first telescopic rod, the first telescopic rod is fixedly installed on the front end face of the reinforcing plate, each of the reinforcing cylinders is provided with a guide hole, and a lifting rod located inside the guide hole is fixedly installed between the two lifting rods, and the telescopic end of the first telescopic rod is fixedly connected to the lifting rod.

[0014] Preferably, one end of each of the movable rods is fixedly installed with an ear plate, and a second telescopic rod is provided between each ear plate and the positioning plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This device can automatically complete the snap-fit ​​fixation by relying on the elastic force of the auxiliary spring. No additional tools are required. It is simple to operate and quick to install. Furthermore, simply pressing the two moving rods in opposite directions can release the snap-fit ​​limit, allowing the moving rods to disengage from the socket and eyelet, thus quickly completing the disassembly of the screen panel. The overall structure is simple, stable, and easy to maintain later.

[0016] 2. By fitting the insertion shaft with the external cavity and the connecting block with the internal block, it is possible to quickly install and disassemble multiple fixed frames. The operation is simple and the connection is firm and reliable.

[0017] 3. The synchronous movement of the two circular boxes is achieved by the pushing device and the lifting rod, ensuring that the screen panel is subjected to uniform and stable force and effectively preventing tilting during installation; the self-locking device, together with the inclined block and the compression spring, automatically locks the screen panel after it is inserted. The inclined block extends between the first and second circular platforms to form a reliable limit, making the screen panel installed firmly and significantly improving its stability. 4. By continuously pushing the device to rise and fall in coordination, the second truncated cone interacts with the inclined plane of the inclined block, driving the sleeve into the sinking groove, thus achieving smooth unlocking and easy operation; due to the two-stage elastic cooperation between the pressure spring and the squeeze spring, the self-locking state is stable and reliable, and the mechanism automatically resets after unlocking, and can be repeatedly used. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram provided for this application; Figure 2 This is a schematic diagram of the lifting platform's position structure provided in this application; Figure 3 Provided for this application Figure 1 Bottom view; Figure 4 Provided for this application Figure 1 Left view; Figure 5 A schematic diagram of the drive slider and swing rod structure provided in this application; Figure 6 A schematic diagram of the reinforcing cylinder and the first telescopic rod provided in this application; Figure 7 This is a schematic diagram of the cross-sectional structure of the pad block provided in this application; Figure 8 This is a schematic diagram of the cross-sectional structure of the reinforced cylinder provided in this application; Figure 9 This is a schematic diagram of the cross-sectional structure of the lifting plate provided in this application; Figure 10 A schematic diagram of the lifting rod structure provided in this application; Figure 11 Provided for this application Figure 2 Enlarged structural diagram at point A in the middle; Figure 12 Provided for this application Figure 7 Enlarged structural diagram at point B; Figure 13 Provided for this application Figure 7 Enlarged structural diagram at point C; Figure 14 Provided for this application Figure 8 Enlarged structural diagram at point D; Figure 15 Provided for this application Figure 10 Enlarged structural diagram at point E in the middle.

[0019] The diagram shows: 1. Fixed frame; 2. Lifting plate; 3. Insertion box; 4. Screen panel; 5. Insertion rod; 6. Positioning plate; 7. Auxiliary spring; 8. Moving rod; 9. Limiting slide; 10. Limiting rod; 11. Side box; 12. Drive slider; 13. Swing rod; 14. Parallel rod; 15. Two-way lead screw; 16. Sprocket assembly; 17. Adjusting wheel; 18. Support rod; 19. Reinforcing plate; 20. Pad; 21. Mounting slot; 22. Bolt hole; 23. Fixing block; 24. Guide strip; 25. Protrusion; 26. Rectangular box; 27. 1. Built-in block; 28. Connecting block; 29. ​​Insertion shaft; 30. Reinforcing cylinder; 31. Lifting rod; 32. Round box; 33. Round hole; 34. Fixing box; 35. Slide rod; 36. Compression spring; 37. Inclined block; 38. Rectangular hole; 39. Limiting block; 40. Bottom rod; 41. Extension shaft; 42. First frustum; 43. Sleeve; 44. Second frustum; 45. Compression spring; 46. First telescopic rod; 47. Guide hole; 48. Lifting rod; 49. Ear plate; 50. Second telescopic rod; 51. Threaded rod; 52. Sinking groove. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0021] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] Please refer to Figure 1 , Figure 2 , Figure 9As shown, a linkage giant screen installation structure includes a fixed frame 1, which is made of high-strength metal and has a vertical frame structure to provide stable support for the entire screen panel 4. Lifting devices are symmetrically arranged at both ends of the fixed frame 1. A lifting plate 2 is horizontally installed between the two lifting devices. The lifting plate 2 is made of steel plate and has sufficient strength to withstand the weight of the screen panel 4. Two insertion boxes 3 are fixedly installed on the rear end face of the lifting plate 2. The two insertion boxes 3 are symmetrically arranged left and right, and the insertion boxes 3 have a through-hole at the front and back. The front end of the plate 2 is detachably equipped with a screen plate 4, which is the main body of the display screen. The rear end of the screen plate 4 is fixedly equipped with two plug rods 5. Each plug rod box 3 has a through-hole on the left and right sides. The plug is located on the rear side of the lifting plate. Each plug rod 5 has a through-hole on the left and right sides. The plug rods 5 are correspondingly set with the plug rod box 3. The rear end of each plug rod 5 is inserted into the plug rod box 3 to form a plug-in positioning structure. Each plug and hole coincides. The screen plate 4 can be quickly and accurately installed with the lifting plate 2 and bear the suspension and load-bearing function of the screen plate 4. A positioning plate 6 is fixedly installed on the rear end face of the lifting plate 2. The positioning plate 6 is located at the center between the two insertion rod boxes 3. Auxiliary springs 7 are fixedly installed on the left and right end faces of the positioning plate 6 respectively, providing continuous elastic thrust to realize the automatic locking function. A moving rod 8 is fixedly installed on the other end of each auxiliary spring 7. One end of the moving rod 8 is slidably installed on the lifting plate 2, and the other end passes through the insertion port and insertion eye laterally, thereby limiting and locking the insertion rod 5 to prevent the insertion rod 5 from loosening and falling off, ensuring that the screen panel 4 is installed firmly and reliably. A limiting groove 9 is opened along its length direction on each moving rod 8. A limiting rod 10 is slidably installed inside each limiting groove 9. One end of each limiting rod 10 is fixedly installed on the lifting plate 2. The rod body of the limiting rod 10 is installed inside the limiting groove 9. The limiting groove 9 can only move back and forth in a straight line along the outside of the limiting rod 10 to prevent the moving rod 8 from shifting or falling off, ensuring stable and reliable operation. Personnel hold the screen panel 4 and insert the two insertion rods 5 into the corresponding insertion rod boxes 3. The elasticity of each auxiliary spring 7 drives the moving rod 8 to insert into the corresponding socket and eye, achieving rapid installation of the screen panel 4. When disassembling, the two moving rods 8 are driven to move closer to each other, and the auxiliary springs 7 are gradually compressed, causing the moving rods 8 to disengage from the sockets and eyes, thus achieving rapid disassembly of the screen panel 4. Since this device can automatically complete the snap-fit ​​fixation by relying on the elasticity of the auxiliary springs 7, no additional tools are required. It is simple to operate, fast to install, and only requires pressing the two moving rods 8 towards each other to release the snap-fit ​​limit, allowing the moving rods 8 to disengage from the sockets and eyes, quickly completing the disassembly of the screen panel 4. The overall structure is simple, stable, and easy to maintain later.

[0024] Please refer to Figure 5 , Figure 6As shown, the lifting device includes side boxes 11, which serve as mounting carriers and are fixedly installed at the left and right ends of the front side of the fixed frame 1. The two side boxes 11 are symmetrically distributed. Drive sliders 12 are slidably mounted inside each end of the side box 11. The drive sliders 12 move linearly along the interior of the side box 11. A swing rod 13 is rotatably mounted on each drive slider 12, allowing it to swing freely around the drive slider 12. Parallel rods 14 are respectively provided on the left and right sides of the fixed frame 1. The other ends of the two swing rods 13 on the left side rotate... The two swing rods 13 on the right side are respectively mounted on one end of the parallel rod 14. The two parallel rods 14 are located on the same horizontal plane to ensure parallelism and stability during transmission. The lifting plate 2 is fixedly installed on the two parallel rods 14 by bolts. The parallel rods 14 drive the lifting plate 2 to achieve smooth lifting and lowering, ensuring that the lifting plate 2 always remains horizontal during the lifting and lowering process. Each side box 11 is equipped with an adjustment device inside. The adjustment device is used to drive the drive slider 12 to slide and adjust inside the side box 11.

[0025] Please refer to Figure 5 , Figure 6 As shown, the adjusting device includes a bidirectional lead screw 15 with opposite threads at both ends. The bidirectional lead screw 15 is rotatably mounted inside each side box 11. Each drive slider 12 is threadedly mounted on one end of the bidirectional lead screw 15. Rotation of the bidirectional lead screw 15 drives the two drive sliders 12 to move closer or further apart. A sprocket assembly 16 is located on one side of each of the two side boxes 11. The sprocket assembly 16 includes two sprockets and a chain. A sprocket coaxially fixedly connected to the bidirectional lead screw 15 is rotatably mounted on one end of each side box 11. A chain connects the two sprockets. The transmission between the sprocket and the chain enables the synchronous rotation of the two bidirectional lead screws 15. An adjusting wheel 17 is coaxially fixedly connected to the outer end of one of the sprockets. A fixing block 23 is fixedly installed in the middle of each side box 11. The middle part of the bidirectional lead screw 15 rotates through the fixing block 23. Two guide bars 24 are fixedly installed on the rear end face of each parallel rod 14. Each guide bar 24 slides through the fixing block 23 on the same side, which limits and guides the guide bar 24, so that the parallel rod 14 can only slide up and down, avoiding its deviation and shaking, and improving the stability of the entire adjustment device. When the position of the screen panel 4 is adjusted, the adjusting wheel 17 drives the sprocket group 16 to rotate, each double-acting screw 15 drives the two drive sliders 12 to move closer or further away from each other, and the two swing rods 13 on the same side drive the corresponding parallel rods 14 to move, thereby adjusting the position of the lifting plate 2 and the screen panel 4. The position of the lifting plate 2 and the screen panel 4 can be adjusted smoothly, the overall transmission is reliable, the force is uniform, and the adjustment accuracy is high.

[0026] Please refer to Figure 7As shown, four support rods 18 are fixedly installed on the rear end face of the fixed frame 1. The four support rods 18 are symmetrically distributed. A reinforcing plate 19 is fixedly installed on the other end of the four support rods 18. A pad 20 is fixedly installed in the middle of the rear end face of the reinforcing plate 19. Four mounting slots 21 are evenly opened on the pad 20. Each mounting slot 21 has a bolt hole 22. The reinforcing plate 19 can be installed and removed through the four bolt holes 22, which improves convenience and stability.

[0027] Please refer to Figure 2 , Figure 7 , Figure 11 , Figure 13 As shown, each fixed frame 1 has a protrusion 25 fixedly installed at its left and right ends, and a rectangular box 26 fixedly installed at the other end of each protrusion 25. The rectangular boxes 26 are installed horizontally symmetrically on both sides of the fixed frame 1. The outer end of the rectangular box 26 has an external cavity. An internal block 27 is fixedly installed in the middle of the external cavity of each rectangular box 26, which improves the firmness of the rectangular box 26. The two ends of the rectangular box 26 have insertion holes. The internal block 27 has a threaded hole. The threaded hole and the insertion hole are concentric. A threaded rod 51 is detachably installed on each rectangular box 26. A connecting device is provided on one side of each rectangular box 26. The connecting device is used for locking between two adjacent fixed frames 1. The connecting device includes a connecting block 28. Two insertion shafts 29 are symmetrically fixedly installed at the left and right ends of each connecting block 28. A positioning hole is passed through the middle of the insertion shaft 29. The size and shape of the insertion shaft 29 match the corresponding insertion hole, which improves the overall assembly accuracy and connection stability. When multiple fixed frames 1 need to be installed, the personnel install two mounting shafts 29 on the same side into the corresponding external cavity, the connecting block 28 contacts the internal block 27, and then insert the threaded rod 51 into the positioning hole of one of the mounting holes. Then rotate the threaded rod 51 to engage with the threaded hole until the threaded rod 51 is inserted into the mounting hole on the other side. Next, install the other two mounting shafts 29 inside the corresponding external cavities. The other side of the connecting block 28 contacts the corresponding internal block 27. Then, insert another threaded rod 51 into the positioning hole of one of the mounting holes. Then, rotate the threaded rod 51 to engage with the threaded hole until the threaded rod 51 is inserted into the mounting hole on the other side. Repeat the above operation to install the remaining fixing frame 1. Through the cooperation of the mounting shaft 29 with the external cavity and the connecting block 28 with the internal block 27, the quick installation and disassembly of multiple fixing frames 1 can be realized. The operation is simple and the connection is firm and reliable.

[0028] Please refer to Figure 3 , Figure 6 , Figure 8 , Figure 10 , Figure 14 , Figure 15 As shown, two symmetrically arranged reinforcing cylinders 30 are fixedly installed on the front end face of the reinforcing plate 19. The two reinforcing cylinders 30 are located on the two outer sides of the lifting plate 2. A pushing device is provided between the two reinforcing cylinders 30. Lifting rods 31 are fixedly installed at both ends of the pushing device. The pushing device can drive the two lifting rods 31 to move synchronously to ensure the consistency of movement on both sides. A circular box 32 is fixedly installed at the other end of each lifting rod 31 away from the pushing device. A circular hole 33 is opened at the top of each circular box 32 to form a hollow shell. Two fixing boxes 34 are evenly fixedly installed on the side surface of each circular box 32. The two fixing boxes 34 are symmetrically distributed. A rectangular cavity is opened inside the fixing box 34 that communicates with the circular hole 33. Each fixing box 34 has a rectangular cavity that communicates with the circular hole 33. A slide rod 35 is slidably installed inside the rectangular cavity of the screen panel 4. One end of each slide rod 35 is fixedly connected to a compression spring 36, and the other end of each compression spring 36 is fixedly connected to the outer end of the fixing box 34. A wedge block 37 is fixedly installed at the other end of each slide rod 35, with the inclined surface of the wedge block 37 facing upward. Due to the force of the compression spring 36, the slide rod 35 drives the wedge block 37 to move into a part of the circular hole 33. A rectangular hole 38 is opened on the side of each fixing box 34. A limit block 39 is fixedly installed on each slide rod 35. The limit block 39 is slidably installed in the corresponding rectangular hole 38 to ensure the accuracy of the sliding direction. Two self-locking devices are provided on the rear end face of the screen panel 4, and each self-locking device is correspondingly set with the circular hole 33 below.

[0029] Please refer to Figure 4 , Figure 7 , Figure 8 , Figure 10 , Figure 14As shown, the self-locking device includes bottom rods 40. One end of each bottom rod 40 is fixedly installed on the rear end face of the screen panel 4. Each bottom rod 40 is correspondingly set with a circular hole 33 on the same side. An extension shaft 41 is coaxially fixedly installed on the other end of each bottom rod 40. The outer diameter of the extension shaft 41 is smaller than the outer diameter of the bottom rod 40. A first frustum 42 is fixedly installed at the rear top end of each extension shaft 41. The first frustum 42 adopts a conical frustum structure, and its maximum outer diameter is larger than the outer diameter of the extension shaft 41, forming an end boss. A sleeve 43 is movably sleeved on the outside of the extension shaft 41. The sleeve 43 is located on the front side of the first frustum 42. The outer diameter of the sleeve 43 is smaller than the outer diameter of the first frustum 42. A second frustum 44 is fixedly installed on the front end face of the sleeve 41. The second frustum 44 is movably sleeved on the extension shaft 41. The specifications of the first frustum 42 are the same as those of the second frustum 44. The tip of the second frustum 44 is opposite to the tip of the first frustum 42. A recessed groove 52 is opened at the top of each first frustum 42. The recessed groove 52 matches the sleeve 43. A pressure spring 45 is fixedly connected between the second frustum 44 and the bottom rod 40. The pressure spring 45 is sleeved on the extension shaft 41. Due to the force of the pressure spring 45, the sleeve 43 is disengaged from the recessed groove 52 and the second frustum 44 is moved away from the first frustum 42. The elastic force of the compression spring 36 is greater than the elastic force of the pressure spring 45. The pushing device drives the two lifting rods 31 to move upward in a straight line in sync, thereby causing the circular box 32 to rise. The first truncated cone 42 enters the hollow shell of the circular box 32 through the circular hole 33. When the inclined surface of the first truncated cone 42 contacts the inclined surface of the inclined block 37, the inclined block 37 is subjected to downward squeezing force. The inclined block 37 drives the slide rod 35 to slide outward along the rectangular cavity of the fixed box 34. The compression spring 36 is compressed. When the first truncated cone 42 continues to move downward and passes the inclined block 37, the squeezing force on the inclined block 37 disappears. Under the elastic action, the compression spring 36 drives the push slide rod 35 to slide in the opposite direction to the inclined block 37, so that the tip of the inclined block 37 is inserted into the cavity between the first truncated cone 42 and the second truncated cone 44 and contacts the outside of the sleeve 43. The inclined surface of the inclined block 37 contacts the edge of the second truncated cone 44, forming a blocking effect on the first truncated cone 42, improving the stability of the screen panel 4 and avoiding loosening, tilting or shaking. During disassembly, the pushing device drives the two lifting rods 31 to continue moving upward in a straight line, thereby causing the top circular box 32 to rise synchronously. The edge of the second circular platform 44 slides against the inclined surface of the inclined block 37, and the inclined block 37 is subjected to downward squeezing force. The inclined block 37 drives the slide rod 35 to slide outward along the rectangular cavity of the fixed box 34, and the compression spring 36 is compressed. When the second circular platform 44 continues to move downward and passes the inclined block 37, the squeezing force on the inclined block 37 disappears. Under the elastic action, the compression spring 36 drives the push slide rod 35 to slide in the opposite direction to the inclined block 37, and the tip of the inclined block 37 contacts the compression spring 36. Next, the pusher drives the two lifting rods 31 to move downwards. The tip of the inclined block 37 presses against the second truncated cone 44 and slides downwards. The pressure spring 45 is stretched, and the sleeve 43 enters the interior of the sinking groove 52. After the second truncated cone 44 and the first truncated cone 42 are completely merged, the tip of the inclined block 37 slides along the inclined surface of the second truncated cone 44, thereby driving the slide rod 35 to slide outwards along the rectangular cavity of the fixed box 34. The compression spring 36 is compressed, and the tip of the inclined block 37 quickly passes the maximum outer diameter of the second truncated cone 44 and the first truncated cone 42 and is located below the first truncated cone 42. Due to the force of the pressure spring 45, the sleeve 43 is disengaged from the sinking groove 52 again. The push device and the lifting rod 31 enable the synchronous movement of the two circular boxes 32, ensuring that the screen panel 4 is subjected to uniform and stable force, effectively preventing tilting during installation; the self-locking device cooperates with the inclined block 37 and the compression spring 36 to automatically lock the screen panel 4 after it is inserted. The inclined block 37 extends between the first circular platform 42 and the second circular platform 44 to form a reliable limit, making the screen panel 4 installed firmly and significantly improving its stability. By continuously pushing the device to rise and fall in coordination, the second truncated cone 44 interacts with the inclined surface of the inclined block 37, driving the sleeve 43 into the sinking groove 52, thus achieving smooth unlocking and easy operation; since the pressure spring 45 and the compression spring 36 form a two-stage elastic cooperation, the self-locking state is stable and reliable, and the mechanism automatically resets after unlocking, and can be repeatedly used.

[0030] Please refer to Figure 6 , Figure 7 , Figure 9 , Figure 12 As shown, the pushing device includes a first telescopic rod 46, and the first telescopic rod 46 and the second telescopic rod 50 are electric telescopic rods, connected to a controller via wires. The controller is connected to an external power source via wires. The first telescopic rod 46 is fixedly installed on the front end face of the reinforcing plate 19. The first telescopic rod 46 is located between the two reinforcing cylinders 30. Vertical guide holes 47 are respectively opened at the close ends of the two reinforcing cylinders 30. A lifting rod 48 located inside the guide hole 47 is fixedly installed between the two lifting rods 31. The two ends of the lifting rod 48 reciprocate along the guide hole 47. The telescopic end of the first telescopic rod 46 is fixedly connected to the lifting rod 48. The retractable rod 46 drives the two lifting rods 31 to reciprocate through the lifting rod 48, enabling the installation and removal of the screen panel 4. Ear plates 49 are fixedly installed at the close ends of the two moving rods 8. The two ends of the positioning plate 6 are fixedly connected to the second telescopic rods 50. The telescopic end of each second telescopic rod 50 is fixedly connected to the corresponding ear plate 49. The two second telescopic rods 50 can carry the two moving rods 8 to reciprocate, and the auxiliary spring 7 can compress and stretch to enable the installation and removal of the screen panel 4, improving convenience. When the second telescopic rod 50 is damaged, the auxiliary spring 7 can lock the moving rod 8 to the insertion rod 5, improving the ease of operation.

[0031] 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, an electrical connection, or a connection that allows communication between them; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A linked giant screen installation structure, characterized in that, The system includes a fixed frame (1), with lifting devices at both ends of the fixed frame (1) and a lifting plate (2) between the two lifting devices. Two rod boxes (3) are fixedly installed on the rear end face of the lifting plate (2), and a screen plate (4) is installed on the front end face of the lifting plate (2). Two rods (5) are fixedly installed on the rear end face of the screen plate (4). The rear end of each rod (5) is installed in the corresponding rod box (3). A positioning plate (6) is fixedly installed on the rear end face of the lifting plate (2). The positioning plate (6) is located between the two rod boxes (3). Auxiliary springs (7) are fixedly installed on both ends of the positioning plate (6). A moving rod (8) is fixedly installed on the other end of each auxiliary spring (7) through the rod box (3). A limiting groove (9) is opened on each moving rod (8). A limiting rod (10) is provided inside each limiting groove (9). One end of each limiting rod (10) is fixedly installed on the lifting plate (2).

2. The linkage giant screen installation structure according to claim 1, characterized in that, The lifting device includes a side box (11). The two ends of the front side of the fixed frame (1) are respectively fixedly installed with side boxes (11). The two ends of each side box (11) are respectively slidably installed with drive sliders (12). Each drive slider (12) is rotatably installed with a swing rod (13). The other ends of the two swing rods (13) located on the same side are installed with parallel rods (14). The lifting plate (2) is fixedly installed on the two parallel rods (14). Each side box (11) is provided with an adjustment device inside.

3. The linkage giant screen installation structure according to claim 2, characterized in that, The adjusting device includes a bidirectional lead screw (15), and a bidirectional lead screw (15) is rotatably installed inside each of the side boxes (11). Each driving slider (12) is threaded onto one end of the bidirectional lead screw (15). A sprocket assembly (16) is installed between the two bidirectional lead screws (15). The sprocket assembly (16) is located on one side of the two side boxes (11). An adjusting wheel (17) is provided on the sprocket assembly (16). A fixing block (23) is fixedly installed in the middle of each side box (11). Two guide bars (24) are fixedly installed on the rear end face of each parallel rod (14). Each guide bar (24) passes through the corresponding fixing block (23).

4. The linkage giant screen installation structure according to claim 1, characterized in that, Four support rods (18) are fixedly installed on the rear end face of the fixed frame (1). A reinforcing plate (19) is fixedly installed between the rear end faces of the four support rods (18). A pad (20) is fixedly installed on the rear end face of the reinforcing plate (19). Multiple mounting slots (21) are evenly provided on the pad (20). Each mounting slot (21) is provided with a bolt hole (22).

5. The linkage giant screen installation structure according to claim 1, characterized in that, Each fixed frame (1) has a protrusion (25) fixedly installed at both ends, and a rectangular box (26) fixedly installed at the other end of each protrusion (25). An internal block (27) is fixedly installed in the middle of each rectangular box (26). A threaded rod (51) is detachably installed on each rectangular box (26). A connecting device is provided on one side of each rectangular box (26). The connecting device includes a connecting block (28). Two insertion shafts (29) are fixedly installed at both ends of each connecting block (28). Each insertion shaft (29) matches the corresponding rectangular box (26).

6. The linkage giant screen installation structure according to claim 1, characterized in that, Two reinforcing cylinders (30) are fixedly installed on the front end face of the reinforcing plate (19). The two reinforcing cylinders (30) are arranged on both sides of the lifting plate (2). A pushing device is provided between the two reinforcing cylinders (30). Lifting rods (31) are fixedly installed at both ends of the pushing device. A round box (32) is fixedly installed at the other end of each lifting rod (31). A round hole (33) is opened at the other end of each round box (32). Two fixing boxes (34) are evenly fixedly installed on the side surface of each round box (32). (34) has a sliding rod (35) inside. One end of each sliding rod (35) is fixedly installed with a compression spring (36) at the outer end of the fixed box (34). The other end of each sliding rod (35) is fixedly installed with a wedge (37). Each fixed box (34) has a rectangular hole (38) on its side. Each sliding rod (35) has a limiting block (39) fixedly installed inside the rectangular hole (38). The rear end face of the screen panel (4) is provided with two self-locking devices. Each self-locking device matches the corresponding round hole (33).

7. The linkage giant screen installation structure according to claim 6, characterized in that, The self-locking device includes a bottom rod (40), each bottom rod (40) is fixedly installed on the rear end face of the screen panel (4), each bottom rod (40) corresponds to a circular hole (33) on the same side, an extension shaft (41) is fixedly installed at the rear end of each bottom rod (40), a first frustum (42) is fixedly installed at the rear top end of each extension shaft (41), a sleeve (43) is sleeved on the extension shaft (41), a second frustum (44) is fixedly installed on the front end face of the sleeve (43), the second frustum (44) is sleeved on the extension shaft (41), a pressure spring (45) is installed between the second frustum (44) and the bottom rod (40), the pressure spring (45) is sleeved on the extension shaft (41).

8. The linkage giant screen installation structure according to claim 6, characterized in that, The pushing device includes a first telescopic rod (46), the front end face of the reinforcing plate (19) is fixedly installed with the first telescopic rod (46), each of the reinforcing cylinders (30) is provided with a guide hole (47), and a lifting rod (48) located inside the guide hole (47) is fixedly installed between the two lifting rods (31), and the telescopic end of the first telescopic rod (46) is fixedly connected to the lifting rod (48).

9. The linkage giant screen installation structure according to claim 1, characterized in that, Each of the moving rods (8) has an ear plate (49) fixedly installed at one end, and a second telescopic rod (50) is provided between each ear plate (49) and the positioning plate (6).

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