LED screen body structure fixing piece

Abstract

The invention discloses an LED screen body structure fixing part, and relates to the technical field of LED screen installation accessories, and the LED screen body structure fixing part comprises a fixing part, an adjusting part and a connecting part; the fixed part is fixedly connected with the box body through a plurality of locking parts; the adjusting piece is rotationally connected with the fixing piece; after the fixing piece is fixedly connected with the box body through the multiple locking pieces, the relative positions of the adjusting piece and the fixing piece are fixed. The connecting piece is fixedly connected with the LED display assembly through a plurality of locking assemblies, and the connecting piece is rotationally arranged on the adjusting piece; the locking assembly comprises bolts and nuts, and a plurality of clamping grooves for the bolts to be clamped in are formed in the connecting piece. A limiting assembly used for limiting rotation of the connecting piece is arranged between the connecting piece and the adjusting piece. According to the LED display screen, a worker can conveniently install and adjust the LED display assembly according to requirements, and therefore the installation effect of the LED screen body is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of LED screen installation accessories, and particularly to a fixing member for an LED screen body structure. Background Art

[0002] An LED screen is a new type of imaging electronic device made by arranging light-emitting diodes in sequence. Due to its high brightness, wide viewing angle, long service life and other characteristics, it is widely used in products such as outdoor advertising screens.

[0003] Currently, an LED screen body is usually composed of multiple LED display components. Through the supporting installation accessories, the multiple LED display components are fixedly installed on the box body, so that the display screens of the multiple LED display components are aligned and spliced to form a complete screen body. Among them, most of the common installation accessories for installing LED display components form a fixed connection between the LED display components and the box body through the cooperation of bolts and nuts.

[0004] However, due to the limited machining accuracy of the structures on the LED display components and the box body that cooperate with the installation accessories to form a fixed connection, it is easy to cause a large gap and low flatness in the screen body obtained by fixedly installing multiple LED display components on the box body subsequently, and even cause the situation that some LED display components cannot be installed normally, making the subsequent adjustment work time-consuming and laborious.

[0005] Therefore, there is an urgent need for a structural fixing member that can effectively improve the installation efficiency and installation effect of the LED screen body. Summary of the Invention

[0006] This application provides a fixing member for an LED screen body structure, which can facilitate workers to install and adjust the LED display components according to needs, thereby effectively improving the installation effect of the LED screen body.

[0007] This application provides a fixing member for an LED screen body structure, adopting the following technical solutions: An LED screen body structure fixing member includes a fixing member, an adjusting member and a connecting member; The fixing member is integrally disc-shaped, and it is fixedly connected to the box body through a plurality of locking members; The adjusting member is also integrally disc-shaped, and it is rotatably connected to the fixing member, and its rotation axis coincides with its own axis and the axis of the fixing member; after the fixing member is fixedly connected to the box body through the plurality of locking members, the relative position of the adjusting member and the fixing member is fixed; The connecting member and the LED display component are fixedly connected through a plurality of locking components. The connecting member is rotatably arranged on the adjusting member, and its rotation axis is perpendicular to the axis of the adjusting member. The locking components include bolts and nuts, and a plurality of card slots for the bolts to be inserted are formed on the connecting member. A limiting component for restricting the rotation of the connecting member is arranged between the connecting member and the adjusting member.

[0008] By adopting the above technical solutions, it is convenient for the staff to form a fixed connection between the LED display component and the box body. At the same time, it is convenient for the staff to adjust the position of the LED display component on the box body according to requirements, so as to effectively improve the installation efficiency and installation effect of the LED screen body.

[0009] Optionally, the moving component is arranged on the adjusting member and is used to drive the connecting member to move relative to the fixing member, and its moving direction is perpendicular to the axis of the fixing member.

[0010] By adopting the above technical solutions, more position adjustment requirements after the preliminary installation of the LED display component can be met. At the same time, the influence of the movement adjustment of the LED display component on its subsequent rotation adjustment can be effectively reduced, and the space occupied during the position adjustment of the LED display component can be effectively reduced.

[0011] Optionally, the moving component is arranged on the side of the adjusting member close to the connecting member and includes a moving belt, two driving rollers and a control member. The driving roller is rotatably connected to the adjusting member, its rotation axis coincides with its own axis and is perpendicular to the axis of the adjusting member, and the rotation axes of the two driving rollers are parallel. The moving belt is wound around the two driving rollers at the same time. The connecting member is rotatably connected to the moving belt, and the rotation axis of the connecting member is perpendicular to the axis of the adjusting member. The control member is rotatably arranged on the adjusting member, and its rotation axis is perpendicular to the rotation axis of the driving roller. The control member rotates to drive one of the driving rollers to rotate, and the two driving rollers rotate synchronously and in the same direction through the moving belt.

[0012] By adopting the above technical solutions, it is convenient for the staff to perform movement adjustment on the LED display component relative to the adjusting member after preliminary installation. At the same time, the accuracy of the movement adjustment of the LED display component and the position stability after adjustment can be improved.

[0013] Optionally, the limiting component includes two air bags and two air nozzles that correspond one by one. The air bags are fixedly connected to the connecting member and are located on the side of the connecting member close to the adjusting member, and the two air bags are respectively located on both sides of the connecting member in the radial direction along its rotation axis. The air nozzle is arranged on the connecting piece, communicates with the inside of the corresponding airbag, and is used to control the entry and exit of gas into the inside of the corresponding airbag.

[0014] By adopting the above technical solution, it is convenient for the staff to fix the position of the LED display component relative to the adjusting piece after the LED display component is rotationally adjusted, and at the same time, the precision of the rotational adjustment of the LED display component can be improved, and the LED display component has a certain damping effect after adjustment.

[0015] Optionally, a plurality of counterbores adapted to the heads of the bolts are formed in the connecting piece, and the counterbores communicate with the corresponding card slots and are located on the side of the corresponding card slots close to the adjusting piece; When the connecting piece and the LED display component are fixedly connected through a plurality of locking components, the head of the bolt is flush with the end face of the connecting piece close to the adjusting piece, and the airbag contacts and abuts against the end face of the connecting piece close to the adjusting piece after being inflated.

[0016] By adopting the above technical solution, it is convenient for the staff to fixedly install the LED display component on the connecting piece through a plurality of locking components, and the inflated airbag after the rotational adjustment of the LED display component can play a limiting role on the bolt, so that the locking effect of the locking component can be effectively improved.

[0017] Optionally, the connecting piece is arranged on the moving belt through a seat body; the seat body is rotatably connected to the moving belt, the axis of rotation thereof is parallel to the axis of the adjusting piece, and the connecting piece is rotatably connected to the seat body.

[0018] By adopting the above technical solution, more position adjustment requirements after the preliminary installation of the LED display component can be further met, and at the same time, it is convenient for the staff to perform rotational adjustment of the LED display component relative to the adjusting piece in multiple directions.

[0019] Optionally, the surface of the moving belt is rough, and the airbag contacts and abuts against the surface of the moving belt after being inflated.

[0020] By adopting the above technical solution, the limiting component can limit the rotation of the LED display component relative to the adjusting piece in two directions at the same time, and at the same time, the position stability of the LED display component relative to the adjusting piece after position adjustment can be effectively improved.

[0021] Optionally, an elastic layer is arranged between the adjusting piece and the fixing piece, and when the fixing piece and the box body are fixedly connected through a plurality of locking pieces, the locking pieces are in contact with the elastic layer.

[0022] By adopting the above technical solution, the friction force after the locking member contacts the elastic layer can be increased, so that the locking effect of the locking member can be effectively improved, and further the position stability of the LED display component after being installed on the box body can be improved.

[0023] Optionally, the locking member is a screw. When the fixing member is fixedly connected to the box body through a plurality of the locking members, the locking member partially penetrates into the elastic layer.

[0024] By adopting the above technical solution, after the locking member penetrates into the elastic layer, the friction force between the locking member and the elastic layer can be further increased, so that the relative position stability between the adjusting member and the fixing member can be further improved; meanwhile, the end of the locking member can be effectively protected to improve the sustainability of the locking member.

[0025] Optionally, an installation groove for installing the elastic layer is formed on one side of the adjusting member close to the fixing member, and the installation groove forms an opening on the side of the adjusting member close to the fixing member.

[0026] By adopting the above technical solution, the service life of the elastic layer can be extended, and at the same time, the influence of the deformation of the elastic layer on the friction force between the locking member and it can be reduced, and the stability of the fixing member fixedly connected to the box body through the locking member can be further improved.

[0027] In summary, the present application includes at least one of the following beneficial effects: 1. It can facilitate the staff to install and adjust the LED display component according to needs, so that both the installation efficiency of the LED screen body can be effectively guaranteed and the installation effect of the LED screen body can be effectively improved; 2. It can meet various requirements for position adjustment of the LED display component, and at the same time can effectively ensure the position stability of the LED display component after position adjustment; 3. It can effectively extend the service life of the structural fixing part to improve the sustainability of the structural fixing part; 4. It can make the LED display component have a certain seismic performance while ensuring the installation stability of the LED display component, and reduce the probability of damage to the connection position between the LED display component and the box body after being affected by external forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of a structural fixing part of an LED screen body in an embodiment of the present application after installing a plurality of LED display components on a box body; Figure 2 is a side view of an LED display component installed on a box body through a structural fixing part in an embodiment of the present application; Figure 3It is a schematic structural diagram of the LED display component after being installed on the box body through the structural fixing member in the embodiment of the present application; Figure 4 It is a cross-sectional view of the LED display component after being installed on the box body through the structural fixing member in the embodiment of the present application; Figure 5 Is Figure 4 The cross-sectional view along the direction of line A-A in

[0029] Explanation of reference numerals: 1. LED display component; 2. Box body; 21. Frame body; 22. Back plate; 3. Fixing member; 4. Adjusting member; 41. Installation groove; 42. Relief groove; 5. Connecting member; 51. Card slot; 52. Counterbore; 6. Locking member; 7. Locking assembly; 71. Bolt; 72. Nut; 8. Moving assembly; 81. Moving belt; 82. Driving roller; 83. Control member; 9. Limiting assembly; 91. Air nozzle; 92. Airbag; 10. Elastic layer; 11. Seat body. Specific embodiments

[0030] The following further elaborates on the present application in conjunction with the attached Figures 1-5 drawings.

[0031] Referring to Figure 1 and Figure 2 In the embodiment of the present application, a structural fixing member for an LED screen body is disclosed, which facilitates workers to install and fix the LED display component 1 on the box body 2 in a required position state. In this embodiment, preferably, the LED display component 1 is integrally in a rectangular plate-like structure, and one side in its thickness direction has a display function; and preferably, the box body 2 is integrally in a cuboid structure, and one side in its width direction is for installing a plurality of LED display components 1 to form an integrated display screen, and its interior has a frame body 21 for connecting and fixing a plurality of LED display components 1 through the structural fixing member, and a back plate 22 is detachably connected to the other side in its width direction to protect the internal structure of the box body 2 and the circuits after the installation of a plurality of LED display components 1; since the LED display component 1 and the box body 2 with the above functions are both prior arts in this field, no further elaboration is made herein, and only a brief representation thereof is shown in the drawings.

[0032] Referring to Figure 2 and Figure 3 The structural fixing member includes a fixing member 3, an adjusting member 4 and a connecting member 5. Among them, the fixing member 3 is used to form a fixed connection with the frame body 21 of the box body 2; the adjusting member 4 is used to form an adjustable connection relationship between the fixing member 3 and the connecting member 5; and the connecting member 5 is used to form a fixed connection with the LED display component 1.

[0033] Referring to Figure 2 and Figure 4The fixing member 3 is in the shape of a disk as a whole, and is fixedly connected to the frame 21 through a plurality of locking members 6. The adjusting member 4 is also in the shape of a disk as a whole, and is located on one side of the axis direction of the fixing member 3, and is rotationally connected to the fixing member 3; the rotation axis of the adjusting member 4 coincides with its own axis and coincides with the axis of the fixing member 3, and a mounting groove 41 is provided on the side close to the fixing member 3, and an elastic layer 10 adapted to the mounting groove 41 is fixedly installed, and the mounting groove 41 is in the shape of an annular groove as a whole, and its axis coincides with the axis of the adjusting member 4, and the mounting groove 41 forms an opening on the side of the adjusting member 4 close to the fixing member 3 along the axis direction of the adjusting member 4; the elastic layer 10 is elastic, and the elastic layer 10 fills the mounting groove 41. In this embodiment, the radial dimensions of the fixing member 3 and the adjusting member 4 are preferably equal, and the end faces of the adjusting member 4 and the fixing member 3 are fitted and abutted against each other; and the elastic layer 10 is preferably made of rubber material, and is fitted and abutted against the end face of the fixing member 3 close to the adjusting member 4.

[0034] The locking member 6 is a screw with a conical structure at the tail, and the fixing member 3 is provided with a plurality of holes that match the screw threads, and the frame body 21 is correspondingly provided with a plurality of holes for the screws to pass through. In this embodiment, the fixing member 3 is preferably fixedly connected to the frame body 21 through four locking members 6, and the four holes on the fixing member 3 are distributed in a circular array with the axis of the fixing member 3 as the axis.

[0035] When the tail of the locking piece 6 passes through the frame 21 and is threadedly engaged with the fixing piece 3, a preliminary connection is formed between the fixing piece 3 and the frame 21. At this time, a certain distance is maintained between the head of the locking piece 6 and the frame 21, and the adjusting piece 4 can still be rotated and adjusted relative to the fixing piece 3; when the head of the locking piece 6 contacts and abuts against the frame 21, the tail of the locking piece 6 can pierce the elastic piece and penetrate into the elastic piece. At this time, the end of the tail of the locking piece 6 will be protected in the elastic layer 10, and the friction force between the locking piece 6 and the elastic layer 10 can not only improve the locking effect of the locking piece 6 on the fixing piece 3 and the frame 21, but also limit the rotation of the adjusting piece 4 relative to the fixing piece 3, thereby achieving the relative position fixation between the adjusting piece 4 and the fixing piece 3.

[0036] Reference Figure 2 and Figure 4 A movable component 8 is installed on the side of the adjusting member 4 facing away from the fixing member 3, and the connecting member 5 is connected to the movable component 8 through the seat body 11; a clearance groove 42 adapted to the movable component 8 is provided on the side of the adjusting member 4 close to the connecting member 5, and the shape of the clearance groove 42 is a rectangular parallelepiped as a whole, and the length direction of the clearance groove 42 is perpendicular to the axial direction of the adjusting member 4.

[0037] Reference Figure 4 and Figure 5 The moving component 8 includes a moving belt 81, two driving rollers 82 and a control member 83.

[0038] The driving roller 82 is a cylindrical structure as a whole, which is rotatably connected to the adjusting member 4, and its rotation axis is parallel to the width direction of the clearance groove 42; the two driving rollers 82 are respectively located at the two ends of the length direction of the clearance groove 42, and the two driving rollers 82 are aligned along the length direction of the clearance groove 42.

[0039] The moving belt 81 is connected end to end and is wound around two driving rollers 82 at the same time, so that the two driving rollers 82 rotate in the same direction and synchronously relative to the adjusting member 4; the moving belt 81 almost occupies the entire clearance groove 42, and the side of the moving belt 81 close to the connecting member 5 is flush with the end face of the side of the adjusting member 4 close to the connecting member 5; the seat body 11 is installed on the side of the moving belt 81 close to the connecting member 5, and the installation position of the seat body 11 on the moving belt 81 is centered along the width direction of the clearance groove 42; in the process of the driving roller 82 rotating to drive the moving belt 81 to move, the seat body 11 can move along the length direction of the clearance groove 42 with the moving belt 81.

[0040] The control member 83 is installed on one side of the radial direction of the adjusting member 4, one end of which is located inside the adjusting member 4 and on one side of the radial direction of a driving roller 82, and the other end of which is located outside the adjusting member 4 for the convenience of the staff to operate it; the control member 83 is rotatably connected with the adjusting member 4, and its rotation axis is parallel to the length direction of the give way slot 42, and its rotation can drive the adjacent driving roller 82 to rotate relative to the adjusting member 4. In this embodiment, it is preferred that when the staff controls the movement of the moving belt 81 through the control member 83, the seat body 11 will remain on the side of the moving belt 81 close to the connecting member 5; and it is preferred that the control member 83 and the adjacent driving roller 82 are linked by a worm gear structure, wherein the control member 83 has a worm gear structure, and the adjacent driving roller 82 has a worm gear structure; since the worm gear structure is a common prior art, it will not be described in detail here, and it is only briefly represented in the accompanying drawings.

[0041] Reference Figure 2 and Figure 4 The connecting member 5 is disc-shaped as a whole, and one end of its axial direction is rotatably connected to the seat body 11, and its rotation axis is perpendicular to its own axis and to the axis of the adjusting member 4; the seat body 11 is a cylindrical structure as a whole, and its axis is parallel to the axis of the adjusting member 4; the seat body 11 is rotatably connected to the moving belt 81, and its rotation axis coincides with its own axis; when the connecting member 5 rotates relative to the seat body 11 until its axis is parallel to the axis of the adjusting member 4, the axis of the connecting member 5 coincides with the axis of the seat body 11.

[0042] There is a certain distance between the connecting member 5 and the adjusting member 4, which provides space for the connecting member 5 to rotate relative to the seat body 11, and the angle at which the connecting member 5 can rotate relative to the seat body 11 is limited.

[0043] The connecting member 5 is fixedly connected to the LED display component 1 through multiple locking components 7. In this embodiment, the connecting member 5 is preferably fixedly connected to the LED display component 1 through four locking components 7 in total, and the positions of the four locking components 7 on the connecting member 5 are distributed in a circular array with the axis of the connecting member 5 as the axis.

[0044] Reference Figure 2 and Figure 3 The locking assembly 7 includes a bolt 71 and a nut 72 that are threadedly matched with each other. The connecting member 5 is provided with four slots 51 for the tail of the bolt 71 to be inserted into and four recessed grooves 52 that are adapted to the head of the bolt 71, and the four slots 51 correspond to the four recessed grooves 52 one by one.

[0045] The card slot 51 is communicated with the corresponding countersunk groove 52. The card slot 51 passes through the side of the connecting member 5 away from the seat body 11 to form an opening, and the countersunk groove 52 passes through the side of the connecting member 5 close to the seat body 11 to form an opening. The card slot 51 and the countersunk groove 52 both pass through the outer side of the connecting member 5 along the radial direction of the connecting member 5 to form an opening, which is convenient for the installation of the bolt 71.

[0046] When the tail of the bolt 71 is inserted into the slot 51 and the head of the bolt 71 is located in the recessed groove 52, the staff can press the LED display component 1 against the connecting piece 5, and realize the fixed connection between the LED display component 1 and the connecting piece 5 by the cooperation of the nut 72 and the tail thread of the bolt 71; at this time, the head of the bolt 71 is flush with the end face of one side of the connecting piece 5 close to the base body 11.

[0047] Reference Figure 2 and Figure 4 A limiting assembly 9 is also installed on the connecting member 5 between the connecting member 5 and the adjusting member 4 for fixing the position of the connecting member 5 after rotation adjustment relative to the seat body 11 and the position of the seat body 11 after rotation adjustment relative to the moving belt 81. The limiting assembly 9 includes two corresponding air bags 92 and two air nozzles 91 for controlling the gas to enter and exit the corresponding air bags 92, and the air nozzles 91 are connected to the internal space of the corresponding air bags 92.

[0048] Two air bags 92 and two air nozzles 91 are both fixedly installed on the connecting member 5 for a structure that forms a rotational connection with the seat body 11. The two air nozzles 91 are located on the same side of this structure, and the two air bags 92 are respectively located on both sides of the rotational axis of the connecting member 5 along its own rotational swing direction; the air bags 92 are located in the interval space for the connecting member 5 to rotate and swing between the connecting member 5 and the adjusting member 4. When the air nozzles 91 are not in use, they are in a closed state, so that the corresponding air bags 92 can maintain their current sizes; the staff can inflate and deflate the corresponding air bags 92 through the air nozzles 91 by using the corresponding inflation and deflation tools, so that the air bags 92 inflate and expand or deflate and shrink. In this embodiment, since the air nozzles 91, air bags 92 and inflation and deflation tools with the above functions are all common existing technologies, they will not be elaborated here, and the air nozzles 91 and air bags 92 are only briefly shown in the drawings.

[0049] After the staff adjusts the position of the LED display assembly 1 by controlling the rotation of the connecting member 5 relative to the seat body 11 and controlling the rotation of the seat body 11 relative to the moving belt 81, the corresponding air bag 92 is controlled to inflate and expand through the air nozzle 91 until the air bag 92 is in contact with and abuts against both the connecting member 5 and the adjusting member 4 at the same time. When both air bags 92 are inflated and expanded and can maintain the position state after the rotating member rotates and adjusts relative to the seat body 11, at this time, the air bag 92 can play a limiting effect on the rotation of the connecting member 5 relative to the seat body 11, and at the same time can play a vibration damping effect after the LED display assembly 1 is affected by an external force, reducing the probability that the vibration affects the connection stability between the LED display assembly 1 and the box body 2.

[0050] Further, it is preferably that the surface of the moving belt 81 is rough, and when the air bag 92 is inflated and expanded to be in contact with and abut against both the connecting member 5 and the adjusting member 4 at the same time, the air bag 92 can also partially contact and abut against the surface of the moving belt 81. At this time, the frictional force between the air bag 92 and the moving belt 81 can form a resistance that restricts the rotation of the seat body 11 relative to the moving belt 81, thereby effectively improving the position stability of the seat body 11 relative to the moving belt 81 after rotation adjustment.

[0051] The implementation principle of an LED screen structure fixing member in an embodiment of the present application is as follows: During the process of installing the LED display assembly 1 on the box body 2, first, the connecting member 5 is fixedly connected to the LED display assembly 1 through a plurality of locking components 7, and then the fixing member 3 is preliminarily connected to the frame body 21 of the box body 2 through a plurality of locking members 6 to realize the preliminary installation of the LED display assembly 1; After the preliminary installation of the LED display component 1, the staff checks the installation quality of the display surface of the LED display component 1. If the position accuracy or flatness of the display surface is insufficient, the staff can first rotate the control adjustment member 4 relative to the fixing member 3 to the required position, and then form a fixed connection between the fixing member 3 and the frame body 21 through a plurality of locking members 6; then operate the control member 83 to rotate relative to the adjustment member 4 to control the movement of the connecting member 5 relative to the adjustment member 4 for adjustment, and then control the rotation of the seat body 11 relative to the moving belt 81 and the rotation of the connecting member 5 relative to the seat body 11 to directly fine-tune the position of the LED display component 1; After the position adjustment of the LED display component 1 is completed, the corresponding airbag 92 is inflated through the air nozzle 91, so that while the LED display component 1 is fixed in position relative to the adjustment member 4 through the connecting member 5, it can also effectively prevent the connecting member 5 and the seat body 11 from rotating relative to each other when the LED display component 1 is affected by external forces, so as to effectively ensure the position stability of the LED display component 1 after installation.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A LED screen structure fixing member, characterized in that: It comprises a fixing part (3), an adjusting part (4) and a connecting part (5); The fixing member (3) is in the shape of a disk as a whole, and is fixedly connected to the box body (2) via a plurality of locking members (6); The adjusting member (4) is also disc-shaped as a whole, and is rotatably connected to the fixing member (3), and its rotation axis coincides with its own axis and the axis of the fixing member (3); after the fixing member (3) is fixedly connected to the box body (2) via a plurality of locking members (6), the relative positions of the adjusting member (4) and the fixing member (3) are fixed; The connecting member (5) is fixedly connected to the LED display assembly (1) via a plurality of locking assemblies (7), which are rotatably arranged on the adjusting member (4), and whose rotation axis is perpendicular to the axis of the adjusting member (4); the locking assembly (7) comprises a bolt (71) and a nut (72), and the connecting member (5) is provided with a plurality of slots (51) for the bolts (71) to be inserted into; A limiting component (9) for limiting the rotation of the connecting member (5) is provided between the connecting member (5) and the adjusting member (4).

2. The LED screen structure fixing member according to claim 1, characterized in that: It also comprises a moving component (8), wherein the moving component (8) is arranged on the adjusting component (4) and is used to drive the connecting component (5) to move relative to the fixing component (3), and the moving direction thereof is perpendicular to the axis of the fixing component (3).

3. The LED screen structure fixing member according to claim 2, characterized in that: The moving component (8) is arranged on a side of the adjusting member (4) close to the connecting member (5), and comprises a moving belt (81), two driving rollers (82) and a control member (83); The driving roller (82) is rotatably connected to the adjusting member (4), the rotation axis of the driving roller (82) coincides with its own axis and is perpendicular to the axis of the adjusting member (4), and the rotation axes of the two driving rollers (82) are parallel; The moving belt (81) is wound around the two driving rollers (82) at the same time, the connecting member (5) is rotationally connected to the moving belt (81), and the rotation axis of the connecting member (5) is perpendicular to the axis of the adjusting member (4); The control member (83) is rotatably arranged on the adjusting member (4), and its rotation axis is perpendicular to the rotation axis of the driving roller (82); the control member (83) rotates to drive one of the driving rollers (82) to rotate, and the two driving rollers (82) rotate synchronously and in the same direction through the moving belt (81).

4. The LED screen structure fixing member according to claim 3, characterized in that: The limiting assembly (9) comprises two air bags (92) and two air nozzles (91) in one-to-one correspondence; The airbag (92) is fixedly connected to the connecting member (5) and is located on a side of the connecting member (5) close to the adjusting member (4), and the two airbags (92) are respectively located on both sides of the connecting member (5) in a radial direction of its own rotation axis; The air nozzle (91) is arranged on the connecting member (5), is communicated with the interior of the corresponding air bag (92), and is used to control the flow of gas into and out of the interior of the corresponding air bag (92).

5. The LED screen structure fixing member according to claim 4, characterized in that: The connecting member (5) is provided with a plurality of recessed grooves (52) adapted to the heads of the bolts (71); the recessed grooves (52) are communicated with the corresponding clamping grooves (51) and are located on a side of the corresponding clamping grooves (51) close to the adjusting member (4); When the connecting member (5) and the LED display assembly (1) are fixedly connected via the plurality of locking assemblies (7), the head of the bolt (71) is flush with the end face of one side of the connecting member (5) close to the adjusting member (4), and the airbag (92) contacts and abuts against the end face of one side of the connecting member (5) close to the adjusting member (4) after being inflated.

6. The LED screen structure fixing member according to claim 4, characterized in that: The connecting member (5) is arranged on the moving belt (81) through a seat body (11); the seat body (11) is rotationally connected to the moving belt (81), the rotation axis thereof is parallel to the axis of the adjusting member (4), and the connecting member (5) is rotationally connected to the seat body (11).

7. The LED screen structure fixing member according to claim 6, characterized in that: The surface of the moving belt (81) is rough, and the airbag (92) contacts and abuts against the surface of the moving belt (81) after being inflated.

8. The LED screen structure fixing member according to claim 1, characterized in that: An elastic layer (10) is provided between the adjusting member (4) and the fixing member (3); when the fixing member (3) and the box body (2) are fixedly connected via a plurality of locking members (6), the locking members (6) are in contact with the elastic layer (10).

9. The LED screen structure fixing member according to claim 8, characterized in that: The locking member (6) is a screw, and when the fixing member (3) and the box body (2) are fixedly connected via a plurality of the locking members (6), the locking members (6) partially penetrate into the elastic layer (10).

10. The LED screen structure fixing member according to claim 9, characterized in that: A mounting groove (41) for mounting the elastic layer (10) is provided on a side of the adjusting member (4) close to the fixing member (3), and the mounting groove (41) forms an opening on a side of the adjusting member (4) close to the fixing member (3).

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