Flexible telescopic structure of spliced LED screen

Abstract

The invention relates to the technical field of mounting of spliced LED screens, in particular to a flexible telescopic structure of a spliced LED screen, which comprises a mounting back plate, an adjusting structure mounted on the mounting back plate and a mounting plate mounted on the adjusting structure and used for mounting the spliced LED screen. When the LED screen needs to be mounted at a higher or lower position, the spliced LED screen is mounted on the mounting plate firstly, then the mounting back plate is mounted on a wall, and if the impression of a user is poor due to the higher position, the mounting plate is adjusted to be in an inclined state with the inclined surface facing downwards through the adjusting structure, so that the mounting back plate is mounted on the wall, and the mounting back plate is mounted on the wall. And if the impression of the user is poor due to the low position, the mounting plate can be adjusted to be in the inclined state that the inclined surface faces upwards through the adjusting structure, so that the user can watch the LED screen more completely, and the user can adjust the LED screen very conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of installation of spliced ​​LED screens, and in particular to a flexible telescopic structure of a spliced ​​LED screen. Background Art

[0002] Splicing LED screens is to combine multiple LED screens together to form a larger display screen. This kind of screen usually involves both hardware and software work, including selecting a suitable LED screen, hardware splicing, and software configuration.

[0003] In the prior art, the installation method for spliced ​​LED screens is usually to use multiple mounting back panels, fix the multiple mounting back panels on the wall, and install corresponding spliced ​​LED screens on the corresponding mounting back panels to form a complete LED screen. However, due to the limited installation locations of LED screens in users' homes or the influence of furniture placement, the installation location of the spliced ​​LED screen is relatively high, resulting in a poor viewing experience for users of the installed spliced ​​LED screen, and the installation location of the spliced ​​LED screen needs to be readjusted and installed, which is very inconvenient. Therefore, a flexible telescopic structure of the spliced ​​LED screen is required. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide a flexible telescopic structure for a spliced ​​LED screen, which is used to solve the technical problem in the prior art that it is very inconvenient to adjust the installed spliced ​​LED screen.

[0005] The above-mentioned purpose of the present application is achieved through the following technical solution: a flexible telescopic structure of a spliced ​​LED screen, including a mounting back plate, an adjustment structure installed on the mounting back plate, and a mounting plate installed on the adjustment structure for mounting the spliced ​​LED screen.

[0006] Furthermore, the adjustment structure includes a connecting rod fixedly connected to the middle part of the mounting back plate, storage rods respectively installed at the upper and lower ends of the mounting back plate, and an extension rod inserted in the storage rod, the extension rod is rotatably connected to the mounting plate at one end away from the storage rod, flanges are extended on both sides of the end of the connecting rod away from the mounting back plate, and a rotating block is provided on the back side of the mounting plate, the rotating block extends between the two flanges and is rotatably connected to the flange.

[0007] By adopting the above technical solution, when the installation location of the LED screen in the user's home is limited or the furniture placement is restricted, and the LED screen needs to be installed in a higher position, the spliced ​​LED screen is first installed on the installation plate, and then the installation back plate is installed on the wall. Due to the high position, the user's viewing experience is not good. At this time, the extension rod at the upper end of the installation back plate can be pulled to make the extension rod rotate against the installation plate to be in a tilted state with the inclined surface facing downward, so that the user can more completely view the LED screen installed in a higher position. The storage rod and the extension rod installed at the lower end of the installation back plate are used to adjust the installation plate to a tilted state with the inclined surface facing upward, so that when the LED screen is installed in a lower position, the user can also see the LED screen more completely, which improves the user experience and the applicability of the installation plate, and makes it very convenient for the user to adjust the LED screen.

[0008] Furthermore, a limiting device for limiting the position of the extension rod is provided inside the storage rod and at one end of the extension rod away from the mounting plate.

[0009] Furthermore, the limiting device includes a first limiting plate fixedly arranged at the upper end of the storage rod, a second limiting plate rotatably arranged on the extension rod, and a first supporting bending spring arranged on a side of the second limiting plate close to the mounting plate for supporting the second limiting plate to maintain a vertical state. One end of the first supporting bending spring is fixedly connected to the second limiting plate, and the other end is fixedly connected to the extension rod. A plurality of first limiting plates are provided, and the plurality of first limiting plates are arranged along the length direction of the storage rod, and there are intervals between the plurality of first limiting plates. The upper end of the second limiting plate abuts against the first limiting plate.

[0010] By adopting the above technical solution, although the setting of the adjustment structure improves the user's usage experience and the applicability of the mounting plate, when the user adjusts the mounting plate to a tilted state with the inclined surface slightly downward, the user already feels that the viewing experience of viewing the LED screen is very good. However, due to gravity, the upper end of the mounting plate in the tilted state with the inclined surface slightly downward will continue to pull the extension rod, causing the inclined surface of the mounting plate to face downward to a greater extent, resulting in a poor viewing experience for the user. The setting of the limit device solves this technical problem. Through the setting of the limit device, when the user adjusts the mounting plate to a tilted state with the inclined surface slightly downward, the second limit plate abuts against the first limit plate to prevent the extension rod from continuing to move. The rotatable second limit plate is to prevent the second limit plate from affecting the movement of the extension rod. The first supporting bending spring is set to enable the rotating second limit plate to maintain the vertical state of the second limit plate when the user does not pull the extension rod, so that the upper end of the second limit plate can abut against the first limit plate, thereby improving the stability of the mounting plate and not affecting the movement of the extension rod.

[0011] Furthermore, a top spring is provided in the storage rod for pushing the extension rod to move toward the mounting plate. One end of the top spring is arranged in one end of the storage rod away from the mounting plate, and the other end is fixedly connected to the extension rod.

[0012] By adopting the above technical solution, although the setting of the limit device improves the stability of the mounting plate and does not affect the movement of the extension rod, if the user accidentally collides with the upper or lower end of the spliced ​​LED screen, the extension rod may retract a little, causing the inclination of the adjusted mounting plate to change. If the inclination of the entire LED screen changes slightly, there will be no effect. However, the change in the inclination of a single spliced ​​LED screen will cause the surface of the entire LED screen to feel a little disharmonious, affecting the user's perception. The setting of the top spring solves this technical problem. The top spring pushes the extension rod toward the mounting plate, so that after the upper or lower end of the spliced ​​LED screen is collided, the top spring can push the extension rod to reset it, so that the second limit plate is again against the first limit plate, thereby preventing the inclination of a single spliced ​​LED screen from changing.

[0013] Furthermore, a second supporting bending spring for supporting the second limiting plate to maintain a vertical state is provided on a side of the second limiting plate away from the mounting plate.

[0014] By adopting the above-mentioned technical solution, although the setting of the top spring can prevent the inclination of a single spliced ​​LED screen from changing, since the extension rod is always subjected to thrust, the second limit plate may pull the supporting bending spring to rotate, causing the extension rod to move. The setting of the second supporting bending spring solves this technical problem. Through the setting of the second supporting bending spring, the second limit plate can be supported when the extension rod is subjected to thrust to prevent the second limit plate from rotating. Only when the extension rod is subjected to a large pulling force can the second limit plate rotate to enable the extension rod to move.

[0015] Furthermore, the first supporting bending spring and the second supporting bending spring are both provided in plurality.

[0016] By adopting the above technical solution, multiple first supporting curved springs and second supporting curved springs are used to provide more supporting force for the second limiting plate.

[0017] Furthermore, the interior of the mounting backplate is hollow, and a connecting port is provided at one end of the storage rod connected to the mounting backplate, and a sliding assembly for driving the top spring to contract is provided at one end of the storage rod close to the mounting backplate. The sliding assembly includes a connecting groove provided in the storage rod and extending to the interior of the mounting backplate, and a telescopic slider slidably connected to the storage rod through the connecting groove. One end of the top spring away from the extension rod is fixedly connected to the telescopic slider, and the top spring is arranged in one end of the storage rod away from the mounting plate through the telescopic slider, and a fixing structure for fixing the telescopic slider is provided on the mounting backplate.

[0018] Furthermore, the fixing structure includes a fixing screw threadedly connected to the mounting back plate and extending into the mounting back plate, and a fixing hemispherical plate fixedly connected to one end of the fixing screw extending into the mounting back plate, the fixing hemispherical plate is located on the side of the telescopic slider away from the top spring and one side of the fixing hemispherical plate abuts the telescopic slider, and a circular arc portion is provided on the side of the telescopic slider close to the fixed hemispherical plate.

[0019] By adopting the above technical solution, although the setting of the second supporting bending spring makes the second limit plate rotate to enable the extension rod to move only when the extension rod is subjected to a large tensile force, when the spliced ​​LED screen is adjusted to a tilted state, one of the extension rods at the upper and lower ends is in an extended state and the other is in a contracted state. The extension rod in the contracted state will further compress the top spring. After the top spring is further compressed, it will produce a greater thrust on the extension rod, which may cause the extension rod to extend and restore the spliced ​​LED screen to a vertical state. Although the setting of the second supporting bending spring can prevent the extension rod from extending, the top spring will always produce a greater thrust on the extension rod, which affects the service life of the top spring. At the same time, it is possible that the top spring will push the extension rod to extend. The setting of the connecting port and the sliding component solves this technical problem. When the telescopic slider needs to be fixed, it is only necessary to turn the fixing screw in the opposite direction so that the fixed hemispherical plate descends in the internal space of the mounting back plate, so that the fixed hemispherical plate rubs against the arc portion to press the telescopic slider into the storage rod, thereby fixing the telescopic slider.

[0020] Furthermore, the connecting rod is a telescopic rod.

[0021] By adopting the above technical solution, the connecting rod which is a telescopic rod can facilitate the user to arrange the spliced ​​LED screens, and the inclined spliced ​​LED screens and the adjacent upper and lower spliced ​​LED screens can be connected up and down by pulling the connecting rod.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: By adjusting the structure, when the installation location of the LED screen in the user's home is limited or the furniture placement is restricted, and the LED screen needs to be installed in a higher position, the spliced ​​LED screen is first installed on the installation plate, and then the installation back plate is installed on the wall. Due to the high position, the user's viewing experience is not good. At this time, the extension rod at the upper end of the installation back plate can be pulled to make the extension rod rotate against the installation plate to an inclined state with the inclined surface facing downward, so that the user can more completely view the LED screen installed in a higher position. The storage rod and the extension rod installed at the lower end of the installation back plate are used to adjust the installation plate to an inclined state with the inclined surface facing upward, so that when the LED screen is installed in a lower position, the user can also more completely view the LED screen installation, thereby improving the user experience and the applicability of the installation plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the embodiment; Figure 2 is along Figure 1 Sectional view along line AA; Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0024] Figure numerals: 1. Mounting back plate; 2. Adjustment structure; 20. Connecting rod; 21. Storage rod; 22. Extension rod; 23. Flange; 24. Connecting port; 3. Mounting plate; 30. Rotating block; 4. Limiting device; 40. First limiting plate; 41. Second limiting plate; 42. First supporting bending spring; 43. Top spring; 44. Second supporting bending spring; 5. Sliding assembly; 50. Connecting slide groove; 51. Telescopic slider; 6. Fixing structure; 60. Fixing screw; 61. Fixing hemispherical plate. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with the accompanying drawings.

[0026] Example, see Figure 1 , Figure 2 , Figure 3, a flexible telescopic structure for splicing LED screens, comprising a mounting back plate 1, an adjustment structure 2 and a mounting plate 3. The mounting back plate 1 is used to be mounted on a wall, and the adjustment structure 2 is mounted on the mounting back plate 1. The adjustment structure 2 specifically comprises a connecting rod 20 fixedly connected to the middle of the mounting back plate 1, and storage rods 21 respectively mounted at the upper and lower ends of the mounting back plate 1. An extension rod 22 is inserted into the end of the storage rod 21 away from the mounting back plate 1, and the end of the extension rod 22 away from the storage rod 21 is rotatably connected to the mounting plate 3. Such an arrangement enables the mounting plate 3 to flexibly adjust its angle as needed. Flanges 23 extend from the left and right sides of the end of the connecting rod 20 away from the mounting back plate 1. These flanges 23 can not only enhance the stability of the structure, but also provide support points for the installation of the mounting plate 3. A rotating block 30 is provided on the back of the mounting plate 3. The rotating block 30 can extend between the two flanges 23 and be rotatably connected to the flange 23.

[0027] When users are faced with the limitation of the installation position of LED screens at home or the obstruction of furniture layout, they need to install the LED screens at a higher position. Users can first install the spliced ​​LED screens on the mounting plate 3, and then fix the entire mounting back plate 1 to the wall. However, due to the high installation position, directly viewing the LED screen may bring a poor viewing experience. At this time, the user uses a ladder or other aids to simply pull the extension rod 22 located at the upper end of the mounting back plate 1, and the extension rod 22 will rotate against the mounting plate 3 until it presents a tilted state facing downward. Such an adjustment not only solves the problem of viewing angle, but also allows users to watch the LED screen installed at a higher position more completely and comfortably even when sitting on the ground.

[0028] Similarly, the storage rod 21 and its extension rod 22 assembly installed at the lower end of the mounting back plate 1 also play a vital role. When the LED screen needs to be installed at a lower position and the viewing experience is to be improved, the user can pull the extension rod 22 at the lower end to adjust the mounting plate 3 to an inclined state with the inclined surface facing upward. This design cleverly solves the problem of limited viewing angles in low positions, ensuring that users can enjoy the best viewing effect no matter what height they are at. This smart telescopic structure not only greatly improves the user experience, but also significantly enhances the applicability and flexibility of the mounting plate 3.

[0029] In this embodiment, the connecting rod 20 is a telescopic rod, which can facilitate users to arrange the spliced ​​LED screens. By pulling the connecting rod 20, the inclined spliced ​​LED screens and the adjacent upper and lower spliced ​​LED screens can be connected up and down.

[0030] Although the design of the adjustment structure 2 significantly improves the user experience and the flexible application of the mounting plate 3, especially when the user adjusts the mounting plate 3 to a slightly downward tilt angle, users generally report that the viewing experience of the LED screen is excellent. However, a problem that cannot be ignored is that this slightly downward tilt state will cause the upper part of the mounting plate 3 to continue to drag the extension rod 22 due to the effect of gravity, thereby causing the tilt angle to gradually increase, which in turn damages the user's viewing effect. In order to overcome this technical difficulty, the present embodiment is provided with a limit device 4, which is respectively arranged inside the storage rod 21 and at the end of the extension rod 22 away from the mounting plate 3.

[0031] The limiting device 4 is composed of several key components: first, a first limiting plate 40 fixedly mounted on the top of the storage rod 21, second, a second limiting plate 41 that can be flexibly rotated on the extension rod 22, and a first supporting spring 42 mounted on the second limiting plate 41 facing the side of the mounting plate 3, one end of the first supporting spring 42 is fixedly connected to the second limiting plate 41, and the other end is fixedly connected to the extension rod 22. It is worth mentioning that the first limiting plate 40 is not set in a single configuration, but multiple ones are arranged along the length direction of the storage rod 21, and appropriate intervals are left between each other. Such a design allows the upper end of the second limiting plate 41 to be able to abut against a first limiting plate 40 when the user adjusts the mounting plate 3 to the ideal tilt angle, thereby effectively preventing the extension rod 22 from moving further.

[0032] The second limit plate 41 is designed to be rotatable so as to ensure that it can perform the limit function without hindering the normal movement of the extension rod 22. The first support spring 42 is provided so as to automatically maintain the vertical state of the second limit plate 41 when the user does not actively operate the extension rod 22, and ensure that its upper end can accurately abut against the first limit plate 40. This setting not only significantly enhances the stability of the mounting plate 3, but also ensures that the extension rod 22 can move smoothly when needed, thereby perfectly solving the problem of excessive tilting of the mounting plate 3 due to gravity without sacrificing the user's viewing experience.

[0033] Although the setting of the limit device 4 significantly enhances the stability of the mounting plate 3 and ensures that the extension rod 22 can move freely without hindrance, there is still a potential problem in the actual application scenario: when the user accidentally touches the upper or lower part of the spliced ​​LED screen, this external force may cause the extension rod 22 to retract slightly, thereby changing the tilt angle of the carefully adjusted mounting plate 3. For the entire LED screen, perhaps this slight change in tilt is not enough to have a significant impact, but on an LED screen composed of multiple splicing units, once the tilt of a single spliced ​​LED screen changes, it will destroy the harmony of the entire screen surface and have a negative impact on the user's viewing experience.

[0034] In order to fully solve this technical problem, the present embodiment further adds a top spring 43 inside the storage rod 21. One end of the top spring 43 is set inside the end of the storage rod 21 away from the mounting plate 3, and the other end is fixedly connected to the extension rod 22. The function of the top spring 43 is that it can continuously push the extension rod 22 to move in the direction of the mounting plate 3. In this way, even if the upper end or the lower end of the spliced ​​LED screen encounters an unexpected collision, the top spring 43 can respond quickly and push the extension rod 22 to reset, ensuring that the second limit plate 41 can be tightly abutted against the corresponding first limit plate 40 again. Such a design not only effectively prevents the change of the inclination of a single spliced ​​LED screen due to external force, but also ensures the flatness and harmony of the entire LED screen surface, thereby further enhancing the user's viewing experience.

[0035] Although the setting of the top spring 43 effectively solves the problem that the inclination of a single spliced ​​LED screen may change due to external force collision, it also brings new challenges: since the extension rod 22 is continuously pushed by the top spring 43, this continuous force may cause the second limit plate 41 to rotate unnecessarily, which may further cause the extension rod 22 to move unexpectedly. In order to solve this technical problem, this embodiment has once again made an innovative setting.

[0036] Specifically, in this embodiment, a second support spring 44 is added to the side of the second limit plate 41 away from the mounting plate 3. The role of the second support spring 44 is crucial. It can provide an additional support force for the second limit plate 41 when the extension rod 22 is pushed by the top spring 43, ensuring that the second limit plate 41 can maintain its vertical state, thereby effectively preventing it from rotating due to force. Such a design means that only when the extension rod 22 is subjected to a sufficiently large pulling force, the second limit plate 41 will overcome the resistance of the second support spring 44 and rotate, thereby allowing the extension rod 22 to move.

[0037] In addition, the first support spring 42 and the second support spring 44 are arranged in parallel. Such multiple protections not only further enhance the stability of the second limit plate 41, but also make the entire limit device 4 more robust and reliable when dealing with various external forces.

[0038] Although the provision of the second support spring 44 effectively solves the problem of the extension rod 22 accidentally moving when subjected to a small external force, when the spliced ​​LED screen is adjusted to a tilted state, one of the extension rods 22 at the upper and lower ends is in an extended state and the other is in a retracted state. For the extension rod 22 in the retracted state, it will further compress the top spring 43, and after being further compressed, the top spring 43 will produce a greater thrust on the extension rod 22, which may cause the extension rod 22 that was originally in a retracted state to accidentally extend, thereby restoring the spliced ​​LED screen to a vertical state. Although the second support spring 44 can prevent this situation from happening to a certain extent, the continued large thrust will still have an adverse effect on the service life of the top spring 43 and increase the risk of the top spring 43 pushing the extension rod 22 to extend.

[0039] In order to completely solve this technical problem, this embodiment makes an innovative arrangement for the mounting back plate 1. First, this embodiment sets the interior of the mounting back plate 1 as a hollow structure to provide sufficient space for subsequent components. At the same time, at one end of the storage rod 21 connected to the mounting back plate 1, this embodiment opens a connecting port 24 that connects to the internal space of the mounting back plate 1 to ensure that subsequent components can enter and exit smoothly.

[0040] Next, in this embodiment, a sliding assembly 5 is provided at one end of the storage rod 21 close to the mounting back plate 1, and the assembly includes a connecting slide 50 opened in the storage rod 21 and extending to the inside of the mounting back plate 1, and a telescopic slider 51 slidably connected to the storage rod 21 through the connecting slide 50. One end of the top spring 43 away from the extension rod 22 is fixedly connected to the telescopic slider 51, so that the top spring 43 is arranged in the end of the storage rod 21 away from the mounting plate 3 through the telescopic slider 51.

[0041] In order to fix the telescopic slider 51, a fixing structure 6 is provided on the mounting back plate 1 in this embodiment. The fixing structure 6 includes a fixing screw 60 threadedly connected to the mounting back plate 1 and extending into the mounting back plate 1, and a fixing hemispherical plate 61 fixedly connected to one end of the fixing screw 60 extending into the mounting back plate 1. The fixing hemispherical plate 61 is located on the side of the telescopic slider 51 away from the top spring 43, and one side of the fixing hemispherical plate 61 can abut the telescopic slider 51. In order to better adapt to the movement of the telescopic slider 51, an arc portion is designed on the side of the telescopic slider 51 close to the fixing hemispherical plate 61 in this embodiment.

[0042] In actual operation, the user can determine which of the extension rods 22 at the upper and lower ends needs to be retracted according to the tilt state required for the spliced ​​LED screen, and release the fixing of the sliding assembly 5 in the storage rod 21 corresponding to the extension rod 22. Specifically, the fixing screw 60 is screwed to make the fixed hemispherical plate 61 rise in the internal space of the mounting back plate 1, so that the fixed hemispherical plate 61 no longer abuts the telescopic slider 51. In this way, when the extension rod 22 is retracted, it will push against the top spring 43, so that the telescopic slider 51 slides into the mounting back plate 1 without being further compressed by the extension rod 22. In this way, the top spring 43 will not generate a greater thrust on the extension rod 22, thereby both increasing the service life of the top spring 43 and preventing the top spring 43 from pushing the extension rod 22 to extend.

[0043] When the telescopic slider 51 needs to be fixed, we only need to screw the fixing screw 60 in the opposite direction to make the fixing hemispherical plate 61 descend in the internal space of the mounting back plate 1. As the fixing hemispherical plate 61 descends, it will rub against the arc portion on the telescopic slider 51, thereby forcing the telescopic slider 51 to slide into the storage rod 21, thereby fixing the telescopic slider 51. This design is not only easy to operate, but also can ensure the stability and reliability of the spliced ​​LED screen when adjusting the tilt state.

[0044] Specific implementation process: first, install the spliced ​​LED screen on the mounting plate 3, and then install the mounting back plate 1 on the wall. If the viewing experience is not good due to the high position, the extension rod 22 at the upper end of the mounting back plate 1 can be pulled, and the fixing screw 60 on the receiving rod 21 at the lower end of the mounting back plate 1 can be released to leave space for the telescopic slider 51 to move, so that the extension rod 22 can rotate against the mounting plate 3 to form an inclined state with the inclined surface facing downward, so that the LED screen installed at a higher position can be viewed more completely; if the position is low and the viewing experience is not good, the extension rod 22 at the lower end of the mounting back plate 1 can be pulled, and the fixing screw 60 on the receiving rod 21 at the upper end of the mounting back plate 1 can be released to leave space for the telescopic slider 51 to move, and the fixing screw 60 on the receiving rod 21 at the lower end of the mounting back plate 1 can be reversed to make the fixed hemispherical plate 61 squeeze the telescopic slider 51 to provide support force for the top spring 43, so that the extension rod 22 can rotate against the mounting plate 3 to form an inclined state with the inclined surface facing upward, so that the LED screen can be viewed more completely.

[0045] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A flexible telescopic structure for splicing LED screens, characterized in that: It comprises a mounting back plate (1), an adjusting structure (2) mounted on the mounting back plate (1), and a mounting plate (3) mounted on the adjusting structure (2) and used for mounting a spliced ​​LED screen.

2. According to claim 1, a flexible telescopic structure for splicing LED screens, characterized in that: The adjustment structure (2) comprises a connecting rod (20) fixedly connected to the middle part of the mounting back plate (1), a storage rod (21) respectively mounted at the upper and lower ends of the mounting back plate (1), and an extension rod (22) inserted into the storage rod (21); one end of the extension rod (22) away from the storage rod (21) is rotatably connected to the mounting plate (3); flanges (23) are extended on both sides of the end of the connecting rod (20) away from the mounting back plate (1); a rotating block (30) is provided on the back side of the mounting plate (3); the rotating block (30) extends between the two flanges (23) and is rotatably connected to the flange (23).

3. According to claim 2, a flexible telescopic structure for splicing LED screens, characterized in that: A limiting device (4) for limiting the position of the extension rod (22) is provided inside the storage rod (21) and at one end of the extension rod (22) away from the mounting plate (3).

4. According to claim 3, a flexible telescopic structure for splicing LED screens, characterized in that: The limiting device (4) comprises a first limiting plate (40) fixedly arranged at the upper end of the storage rod (21), a second limiting plate (41) rotatably arranged on the extension rod (22), and a first supporting bending spring (42) arranged on a side of the second limiting plate (41) close to the mounting plate (3) for supporting the second limiting plate (41) to maintain a vertical state, one end of the first supporting bending spring (42) is fixedly connected to the second limiting plate (41), and the other end is fixedly connected to the extension rod (22), a plurality of the first limiting plates (40) are provided, the plurality of first limiting plates (40) are arranged along the length direction of the storage rod (21), and a gap is left between the plurality of first limiting plates (40), and the upper end of the second limiting plate (41) abuts against the first limiting plate (40).

5. According to claim 2, the flexible telescopic structure of the spliced ​​LED screen is characterized in that: A top spring (43) is provided inside the storage rod (21) for pushing the extension rod (22) to move in the direction of the mounting plate (3); one end of the top spring (43) is arranged inside an end of the storage rod (21) away from the mounting plate (3), and the other end is fixedly connected to the extension rod (22).

6. According to claim 4, a flexible telescopic structure for splicing LED screens, characterized in that: A second supporting bending spring (44) for supporting the second limiting plate (41) to maintain a vertical state is provided on a side of the second limiting plate (41) away from the mounting plate (3).

7. The flexible telescopic structure of a spliced ​​LED screen according to claim 6, characterized in that: A plurality of the first supporting curved springs (42) and a plurality of the second supporting curved springs (44) are provided.

8. According to claim 5, the flexible telescopic structure of the spliced ​​LED screen is characterized in that: The interior of the mounting back plate (1) is hollow. The end of the storage rod (21) connected to the mounting back plate (1) is provided with a connecting port (24) connected to the internal space of the mounting back plate (1). The end of the storage rod (21) close to the mounting back plate (1) is provided with a sliding assembly (5) for driving the top spring (43) to contract. The sliding assembly (5) comprises a connecting slide groove (50) provided in the storage rod (21) and extending to the interior of the mounting back plate (1) and a telescopic slider (51) slidably connected to the storage rod (21) through the connecting slide groove (50). The end of the top spring (43) away from the extension rod (22) is fixedly connected to the telescopic slider (51). The top spring (43) is arranged in the end of the storage rod (21) away from the mounting plate (3) through the telescopic slider (51). The mounting back plate (1) is provided with a fixing structure (6) for fixing the telescopic slider (51).

9. The flexible telescopic structure of the spliced ​​LED screen according to claim 8, characterized in that: The fixing structure (6) comprises a fixing screw (60) threadedly connected to the mounting back plate (1) and extending into the mounting back plate (1), and a fixing hemispherical plate (61) fixedly connected to one end of the fixing screw (60) extending into the mounting back plate (1), wherein the fixing hemispherical plate (61) is located on a side of the telescopic slider (51) away from the top spring (43) and one side of the fixing hemispherical plate (61) abuts against the telescopic slider (51), and a circular arc portion is provided on a side of the telescopic slider (51) close to the fixing hemispherical plate (61).

10. According to the flexible telescopic structure of a spliced ​​LED screen as claimed in claim 2, the connecting rod (20) is a telescopic rod.

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