A device and method for installing and maintaining an LED display screen for advertising

Abstract

The present invention discloses an installation and maintenance device and method for an LED display screen for advertising, and the present invention relates to the technical field of LED display screens. By setting an LED module spacing control mechanism, the LED module unit can be moved downward by means of an adjustment wrench before installing the LED module unit, so that the effect of pushing multiple LED module bearing mechanisms to be equidistant from each other can be achieved during the downward movement, and an operating space for installation or maintenance is reserved between two adjacent LED module bearing mechanisms, which is convenient for staff to install the LED module unit and its ancillary accessories, and avoids the situation where surrounding LED module units are damaged during installation or maintenance. By using a driving unit after adjusting the inclination angle of a driving through groove to synchronously drive multiple LED module bearing mechanisms, the effect of increasing the spacing between two adjacent LED module bearing mechanisms on the original basis can be achieved, thereby providing installation space and later maintenance space for installing LED module units of new width sizes, and improving the installation and maintenance efficiency of LED module units.

Description

Technical Field

[0001] The present invention relates to the technical field of LED display screens, and in particular to an installation and maintenance device and method for an LED display screen used for advertising. Background Art

[0002] LED display is a display screen that uses LED (light-emitting diode) as a display light source, and is often used in advertising, information release, indoor and outdoor display, etc. LED display screens have the advantages of high brightness, good clarity, bright colors, energy saving and environmental protection, and are widely used in commercial advertising, stage performances, sports events, traffic guidance, conference displays and other fields.

[0003] Among them, the LED display screen is assembled from multiple LED modules. Two adjacent LED modules are connected by a data transmission line, and the image display is completed through the cooperation of the control system, power supply system, heat dissipation system, shell and bracket.

[0004] A front maintenance and installation device for an LED display disclosed in the patent application with reference publication number CN202939926U ensures the flatness and safety of the display installation. Since the box and most of the unit boards are fixed with screws, the flatness and safety of the display are fully guaranteed. The patent application can easily disassemble the box of the display from the front, replace the parts of the display or perform other maintenance activities; since in the process of the LED display, a combination of magnetic attraction and screw fastening is used for installation, the purpose of installation and maintenance from the front is achieved. When the LED display unit board is installed on the box, a small number of unit boards use magnetic attraction, and the rest of the unit boards are fastened to the unit box with screws.

[0005] A comprehensive analysis of the above patents shows the following defects:

[0006] At present, during the installation of LED display screens, LED modules need to be spliced ​​in the housing one by one. As the number of LED modules installed increases, the installation space of the remaining LED modules gradually decreases, which also reduces the installation space for workers. It is inconvenient to install the LED modules, and the LED modules are easily damaged during the installation process.

[0007] When one of the LED modules fails, it needs to be removed and replaced. However, multiple LED modules are arranged very closely, and there is no space for disassembly or maintenance between two adjacent LED modules, so the faulty LED module cannot be disassembled specifically. If the faulty LED module is to be disassembled, the surrounding LED modules need to be removed one by one until the space around the faulty LED module is exposed, which increases the difficulty of the inspection and maintenance of the LED display.

[0008] Therefore, the present invention proposes an LED display screen installation and maintenance device and method for advertising to solve the above problems. Summary of the invention

[0009] In view of the deficiencies in the prior art, the present invention provides an installation and maintenance device and method for an LED display screen for advertising, which solves the problem that during the current installation process of an LED display screen, as the number of installed LED modules increases, the installation space of the remaining LED modules gradually decreases, which also results in a reduction in the installation activity space of the staff, making it inconvenient to install the LED modules, and the LED modules are easily damaged during the installation process; multiple LED modules are arranged very closely, and there is no space for disassembly or maintenance between two adjacent LED modules, making it impossible to perform targeted disassembly of a faulty LED module; if a faulty LED module is to be disassembled, the surrounding LED modules need to be removed one by one until the space around the faulty LED module is exposed, thereby adding difficulty to the inspection and maintenance of the LED display screen.

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions: an LED display screen installation and maintenance device for advertising, comprising:

[0011] The LED display screen frame has a detachable heat dissipation back plate on its back for sealing its internal space, and support rods for ground installation are fixedly provided on both left and right sides of the bottom of the LED display screen frame;

[0012] The LED module bearing mechanism is arranged in a rectangular array distribution manner inside the LED display screen frame, and each LED module bearing mechanism is detachably provided with an LED module unit on its outer wall, and a plurality of the LED module units are arranged in sequence and at equal distances to form an LED display screen for advertising;

[0013] The LED module spacing control mechanism is arranged inside the LED display screen frame and is used to synchronously control the spacing between multiple LED module bearing mechanisms, thereby providing operating space for the installation or maintenance of the LED module units;

[0014] The adjusting wrench is detachably arranged on the LED module spacing adjustment mechanism, and is used to drive the LED module spacing adjustment mechanism to complete the adjustment of the spacing of the LED module bearing mechanisms.

[0015] Furthermore, the LED display screen frame includes an upper horizontal plate and a lower horizontal plate vertically distributed on the upper and lower sides, and storage grooves opened at both ends of the upper horizontal plate and the lower horizontal plate. A plurality of guide rail assemblies are evenly arranged between the opposite side walls of the upper horizontal plate and the lower horizontal plate. The upper horizontal plate, the lower horizontal plate and the guide rail assemblies are fixedly connected by a plurality of connecting plates. The upper horizontal plate and the lower horizontal plate are respectively slidably provided with a side frame assembly 1 and a side frame assembly 2 in the storage grooves at the left and right ends thereof. The side frame assembly 1, the side frame assembly 2 and the upper horizontal plate and the lower horizontal plate are locked in position by fastening bolts. The top of the lower horizontal plate is provided with an avoidance groove for extending the descending height of the LED module spacing regulating mechanism.

[0016] Furthermore, the structures of the side frame assembly 1 and the side frame assembly 2 are exactly the same. The side frame assembly 1 includes a side plate and two extension arms 1 respectively fixedly arranged on the upper and lower sides of the same side wall of the side plate. The two extension arms 1 are respectively slidably arranged in the receiving grooves at the ends of the upper horizontal plate and the lower horizontal plate. The outer wall of the extension arm 1 is provided with a position indicating wire groove 1 for prompting it to move outward to the maximum length of the receiving groove.

[0017] Furthermore, the guide rail assembly includes a guide rail 1 and a guide rail 2 which are alternately connected head to tail through flanges, the guide rail 1 and the guide rail 2 have exactly the same structure, and T-shaped sliding grooves are provided on the outer walls of both guide rails.

[0018] Furthermore, the LED module spacing control mechanism includes spacing control unit 1, spacing control unit 2, spacing control unit 3 and spacing control unit 4 which are equidistantly arranged from top to bottom, and the spacing control unit 1, spacing control unit 2, spacing control unit 3 and spacing control unit 4 are connected by multiple connecting plates 2, and a screw sleeve is fixedly provided on the outer wall of one of the connecting plates 2, and a screw is connected to the internal thread of the screw sleeve.

[0019] Furthermore, the spacing control unit 1 includes a lifting plate and mounting grooves evenly arranged inside the lifting plate, circular through grooves evenly arranged on the outer wall of the lifting plate that correspond to and are connected to the mounting grooves one by one, scale line grooves evenly arranged on the outer wall of the lifting plate and located around the circular through grooves, driving units are symmetrically arranged in the mounting grooves on both sides of the lifting plate, and two adjacent driving units are locked by a limit rod 1.

[0020] Furthermore, the driving unit comprises a circular plate rotatably arranged in the mounting groove and a pointer evenly fixedly arranged on the outer wall of the circular plate for use in conjunction with the scale line groove, and a driving through groove is opened on the side wall of the circular plate.

[0021] Furthermore, the inclination angles of the driving through slots in the plurality of circular plates symmetrically arranged on both sides of the lifting plate change linearly in sequence.

[0022] Furthermore, the LED module bearing mechanism includes a bearing rod and storage grooves provided at both ends of the bearing rod, a vertical plate is fixedly provided on the top of the bearing rod, sleeves are fixedly provided on the four corners of the outer wall of the vertical plate, an extension arm 2 is slidably provided in the storage groove, the position of the extension arm 2 and the bearing rod is locked by a fastening bolt, a position indicating wire groove 2 for indicating that the extension arm 2 moves outward to the storage groove to the extreme position is provided on the outer wall of the extension arm 2, and a limiting rod 2 is fixedly provided at one end of the extension arm 2 away from the bearing rod, a bearing plate is provided on one side of the vertical plate, a slider is fixedly provided on the outer wall of the bearing plate via a connecting column, docking columns corresponding to the position of the sleeve are fixedly provided on the four corners of the side wall of the bearing plate away from the slider, and the docking columns are detachably provided inside the sleeve;

[0023] The LED module unit comprises an LED module body and an assembly frame fixedly sleeved outside the LED module body, and an assembly groove is provided on the outer wall of the assembly frame.

[0024] The present invention also discloses a method for installing and maintaining an LED display screen for advertising, using an installation and maintenance device for an LED display screen for advertising, the method comprising the following steps:

[0025] Step 1: When installing the LED module unit, widen the internal space width of the LED display screen frame, and use the adjustment wrench to drive the LED module spacing control mechanism to move downward until the bottom of the LED module spacing control mechanism moves down to the limit position. At this time, multiple LED module bearing mechanisms are driven by the LED module spacing control mechanism, and the gap between two adjacent LED module bearing mechanisms increases. Use this gap to perform the next step of LED module unit installation operation;

[0026] Step 2: Install the LED module units on each LED module bearing mechanism in turn to ensure a stable connection between each LED module unit and the LED module bearing mechanism. Then, use the adjustment wrench again to drive the LED module spacing control mechanism to move up to the original position, and then adjust the width of both sides of the LED display frame to the original position, and use the fastening bolts to lock the width of the LED display frame.

[0027] Step 3: When expanding the width of the LED display screen, remove the heat dissipation backplane, adjust the LED module spacing control mechanism, and then use the adjustment wrench to drive the LED module spacing control mechanism down to the limit position. When the LED module spacing control mechanism moves down from the upper original position to the limit position, the gap between the two adjacent LED module bearing mechanisms increases. At this time, adjust the installation size of the LED module bearing mechanism to the limit value, and install the new size of the LED module unit and the LED module bearing mechanism.

[0028] The present invention provides an installation and maintenance device and method for an LED display screen for advertising. Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. An installation and maintenance device and method for an LED display screen for advertising, which sets an LED module spacing control mechanism, can achieve its own downward movement with the help of an adjusting wrench before installing the LED module unit, so that the effect of pushing multiple LED module bearing mechanisms to be equidistant from each other can be achieved during the downward movement, and an operating space for installation or maintenance is reserved between two adjacent LED module bearing mechanisms, which is convenient for staff to install LED module units and their accessories, and avoids damage to surrounding LED module units during installation or maintenance.

[0030] 2. An installation and maintenance device and method for an LED display screen for advertising, wherein each drive unit can rotate freely through a spacing control unit 1, and the inclination angle of the drive slot can be accurately adjusted by referring to the scale groove and the pointer, thereby ensuring that the inclination angle of the drive slot in two adjacent drive units can reach the set value; secondly, by using the drive unit after adjusting the inclination angle of the drive slot to synchronously drive multiple LED module bearing mechanisms, the effect of increasing the spacing between two adjacent LED module bearing mechanisms on the original basis can be achieved, thereby providing installation space and later maintenance space for installing LED module units of new width sizes, thereby improving the installation and maintenance efficiency of LED module units.

[0031] 3. An installation and maintenance device and method for an LED display screen for advertising. By setting up an LED display screen frame, the distance between the side frame component 1 and the side frame component 2 relative to the upper horizontal plate can be changed when installing or repairing the LED, thereby providing space for the lateral expansion of multiple LED module bearing mechanisms; secondly, the side frame component 1 and the side frame component 2 can be extended to both sides by a fixed distance when the width of the LED display screen needs to be expanded, thereby providing necessary spatial support for the expansion of the width of the LED display screen, achieving the purpose of changing the size of the original LED display screen, broadening the use scenarios of the LED display screen, and saving the cost of producing LED display screens of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the first overall three-dimensional structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the second overall structure of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the first decomposed state of the present invention;

[0035] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of part A;

[0036] Figure 5 It is a schematic diagram of the structure of the second decomposition state of the present invention;

[0037] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of part B in FIG.

[0038] Figure 7 For the present invention Figure 5 A schematic diagram of the enlarged structure of part C in FIG.

[0039] Figure 8 This is a schematic diagram of the structure of the LED display screen frame in the exploded state of the present invention;

[0040] Fig. 9 This is a schematic diagram of the structure of the LED module spacing control mechanism of the present invention;

[0041] Fig.10 For the present invention Fig. 9 The D part in the figure is an enlarged structural diagram;

[0042] Fig.11 This is a schematic cross-sectional structural diagram of a spacing control unit of the present invention;

[0043] Fig.12 It is a structural schematic diagram of the LED module spacing control mechanism and the LED module supporting mechanism in the assembly state of the present invention;

[0044] Fig.13 This is a schematic diagram of the structure of the drive unit of the present invention;

[0045] Fig.14 This is a schematic diagram of the structure of the LED module supporting mechanism of the present invention;

[0046] Fig.15 For the present invention Fig.14 The enlarged structural diagram of part F in FIG.

[0047] Fig.16 It is a schematic diagram of the LED module unit structure of the present invention.

[0048] In the figure: 1. LED display screen frame; 11. upper horizontal plate; 12. lower horizontal plate; 13. guide rail assembly; 131. guide rail 1; 132. guide rail 2; 14. connecting plate 1; 15. side frame assembly 1; 151. side plate; 152. extension arm 1; 153. position indicator wire groove 1; 16. side frame assembly 2; 17. avoidance groove; 2. heat dissipation back plate; 3. support rod; 4. LED module spacing adjustment mechanism; 41. spacing adjustment unit 1; 411. lifting plate; 412. scale wire groove; 413. drive unit; 4131. circular plate; 413 2. Pointer; 4133. Drive slot; 416. Limit rod one; 42. Spacing control unit two; 43. Spacing control unit three; 44. Spacing control unit four; 45. Connecting plate two; 46. Screw sleeve; 47. Screw; 5. LED module bearing mechanism; 51. Bearing rod; 52. Vertical plate; 53. Sleeve; 54. Extension arm two; 55. Position indicating wire slot two; 56. Limit rod two; 57. Bearing plate; 58. Slider; 59. Docking column; 6. LED module unit; 61. LED module body; 62. Assembly frame; 7. Adjustment wrench. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] like Figures 1 to 16 The present invention provides three technical solutions: an LED display installation and maintenance device for advertising, specifically including the following embodiments:

[0051] Embodiment 1: A device for installing and maintaining an LED display screen for advertising, comprising:

[0052] The LED display frame 1 has a detachable heat dissipation back plate 2 on its back for sealing its internal space, and a plurality of heat dissipation fins are evenly and fixedly arranged on the back of the heat dissipation back plate 2. Support rods 3 for ground installation are fixedly arranged on both left and right sides of the bottom of the LED display frame 1.

[0053] The LED module supporting mechanism 5 is arranged in a rectangular array distribution manner inside the LED display screen frame 1. The outer wall of each LED module supporting mechanism 5 is detachably provided with an LED module unit 6. The multiple LED module units 6 are arranged in sequence and at equal intervals to form an LED display screen for advertising;

[0054] The LED module spacing control mechanism 4 is arranged inside the LED display screen frame 1 and is used to synchronously control the spacing between multiple LED module bearing mechanisms 5 to provide an operating space for the installation or maintenance process of the LED module unit 6;

[0055] The adjusting wrench 7 is detachably arranged on the LED module spacing regulating mechanism 4, and is used to drive the LED module spacing regulating mechanism 4 to complete the regulation of the spacing of the LED module supporting mechanism 5. When not in installation or maintenance state, the adjusting wrench 7 and the LED module spacing regulating mechanism 4 are in a separated state.

[0056] The LED display screen frame 1 includes an upper horizontal plate 11 and a lower horizontal plate 12 vertically distributed on the upper and lower sides and storage grooves opened at both ends of the upper horizontal plate 11 and the lower horizontal plate 12. A plurality of guide rail assemblies 13 are evenly arranged between the opposite side walls of the upper horizontal plate 11 and the lower horizontal plate 12. The upper horizontal plate 11, the lower horizontal plate 12 and the guide rail assembly 13 are fixedly connected by a plurality of connecting plates 14. The upper horizontal plate 11 and the lower horizontal plate 12 are respectively slidably provided with a side frame assembly 15 and a side frame assembly 2 16 in the storage grooves at the left and right ends thereof. The side frame assembly 15, the side frame assembly 2 16 and the upper horizontal plate 11 and the lower horizontal plate 12 are locked in position by fastening bolts. The top of the lower horizontal plate 12 is provided with an avoidance groove 17 for extending the descending height of the LED module spacing regulating mechanism 4.

[0057] The structures of the side frame assembly 15 and the side frame assembly 2 16 are completely the same. The side frame assembly 15 includes a side plate 151 and two extension arms 152 fixedly arranged on the upper and lower sides of the same side wall of the side plate 151, respectively. The two extension arms 152 are respectively slidably arranged in the receiving grooves at the ends of the upper horizontal plate 11 and the lower horizontal plate 12. The outer wall of the extension arm 152 is provided with a position indicating line groove 153 for prompting it to move outward from the receiving groove to the limit length. The support rod 3 is fixedly arranged at the bottom of the lower horizontal plate 12.

[0058] The guide rail assembly 13 includes a guide rail 1 131 and a guide rail 2 132 which are alternately connected head to tail through flanges. The structures of the guide rail 1 131 and the guide rail 2 132 are completely the same, and T-shaped sliding grooves are provided on the outer walls of both guide rails.

[0059] Embodiment 2: The main difference between this embodiment and the first technical solution is that: an LED display screen installation and maintenance device for advertising, the LED module spacing control mechanism 4 includes a spacing control unit 1 41, a spacing control unit 2 42, a spacing control unit 3 43 and a spacing control unit 4 44 which are equidistantly arranged from top to bottom, the spacing control unit 1 41, the spacing control unit 2 42, the spacing control unit 3 43 and the spacing control unit 4 44 are connected by a plurality of connecting plates 2 45, a screw sleeve 46 is fixedly provided on the outer wall of one of the connecting plates 2 45, and a screw sleeve 46 is internally threadedly connected to a screw 47. The bottom end of the screw rod 47 is rotatably arranged on the top of the lower horizontal plate 12, and the top of the screw rod 47 is rotatably penetrated through the upper horizontal plate 11 and extends to the outside, and a regular hexagonal groove is arranged on the top of the screw rod 47, and the regular hexagonal groove is used in conjunction with the adjusting wrench 7. A regular hexagonal prism matching the regular hexagonal groove is arranged in the adjusting wrench 7. The regular hexagonal prism is inserted into the regular hexagonal groove and rotated to drive the screw rod 47 to rotate. The spacing control unit 1 41, the spacing control unit 2 42, the spacing control unit 3 43 and the spacing control unit 4 44 are components with exactly the same structure.

[0060] The spacing control unit 141 includes a lifting plate 411 and mounting grooves uniformly provided inside the lifting plate 411. Circular through grooves corresponding to and connected to the mounting grooves are uniformly provided on the outer wall of the lifting plate 411. Scale line grooves 412 are uniformly provided on the outer wall of the lifting plate 411 and around the circular through grooves. Driving units 413 are symmetrically provided in the mounting grooves on both sides of the lifting plate 411. Two adjacent driving units 413 are locked by limiting rods 1416. A plurality of threaded holes for connecting the limiting rods 1416 are provided on the outer wall of the circular plate 4131. The positions of the threaded holes can ensure that the circular plate 4131 can be connected to the limiting rods 1416 both in the initial position and after rotating to a specific angle.

[0061] The driving unit 413 includes a circular plate 4131 rotatably arranged in the mounting groove and a pointer 4132 uniformly fixedly arranged on the outer wall of the circular plate 4131 for use with the scale groove 412. A driving through groove 4133 is provided on the side wall of the circular plate 4131. When the circular plate 4131 is rotated, the rotation angle of the circular plate 4131 can be determined with reference to the scale groove 412, and the position of the driving through groove 4133 can be determined. According to the design, within a certain range, every time the circular plate 4131 rotates one scale angle, the driving through groove 4133 pushes the LED module bearing mechanism 5 to move horizontally to increase a fixed length. When the rotation angle of two adjacent driving units 413 located on the same side of the lifting plate 411 increases from the original initial position to a difference of four scales, the LED module spacing adjustment mechanism 4 moves down to the extreme position. At the same time, the gap distance between the two adjacent LED module supporting mechanisms 5 can meet the needs of widening the LED module supporting mechanism 5 to install the new width size LED module unit 6, and can also reserve a part of the gap between the two adjacent LED module supporting mechanisms 5 for installation and maintenance.

[0062] The inclination angles of the driving slots 4133 in the multiple circular plates 4131 symmetrically arranged on both sides of the lifting plate 411 change linearly in sequence. The inclination angles of the driving slots 4133 gradually increase from the middle position of the lifting plate 411 to both sides, so that when the driving slots 4133 with linearly changing inclination angles simultaneously push the multiple LED module supporting mechanisms 5 to move away from each other, the distance between two adjacent LED module supporting mechanisms 5 increases synchronously.

[0063] Embodiment 3: The main difference between this embodiment and the second technical solution is that: an LED display installation and maintenance device for advertising, the LED module bearing mechanism 5 includes a bearing rod 51 and a storage groove opened at both ends of the bearing rod 51, a vertical plate 52 is fixedly provided on the top of the bearing rod 51, and sleeves 53 are fixedly provided on the four corners of the outer wall of the vertical plate 52, and an extension arm 54 is slidably provided in the storage groove, and the position of the extension arm 54 and the bearing rod 51 is locked by a fastening bolt, and a guide is provided on the outer wall of the extension arm 54 for indicating The second extension arm 54 moves outward to the storage slot to the position indicating line slot 55 of the limit position, and the second extension arm 54 is fixedly provided with a limit rod 56 at one end away from the bearing rod 51, and a bearing plate 57 is provided on one side of the vertical plate 52, and a slider 58 is fixedly provided on the outer wall of the bearing plate 57 through a connecting column, and the slider 58 is slidably provided in a T-shaped slide groove on the outer wall of the second guide rail 132, and the four corners of the side wall of the bearing plate 57 away from the slider 58 are fixedly provided with docking columns 59 corresponding to the position of the sleeve 53, and the docking columns 59 are detachably provided inside the sleeve 53;

[0064] The LED module unit 6 includes an LED module body 61 and an assembly frame 62 fixedly mounted on the outside of the LED module body 61, and an assembly groove is provided on the outer wall of the assembly frame 62. The structure and size of the second limit rod 56 are compatible with the assembly groove, and the second limit rod 56 is detachably arranged in the assembly groove. When the second extension arm 54 moves outward to the limit position of the internal storage groove of the load-bearing rod 51, that is, when the position indicating wire groove 55 and the end of the load-bearing rod 51 are flush, the width between the relative side walls of the two second limit rods 56 can just meet the only new width size of the LED module unit 6 assembled therein, that is, on the basis of the original LED display screen, the original width size of the LED module unit 6 can be replaced with another size of the LED module unit 6 to achieve the effect of expanding the size of the LED screen.

[0065] The present invention also discloses a method for installing and maintaining an LED display screen for advertising, using an LED display screen installation and maintenance device for advertising, the method comprising the following steps:

[0066] Step 1: When installing the LED module unit 6, widen the internal space width of the LED display screen frame 1, and use the adjusting wrench 7 to drive the LED module spacing control mechanism 4 to move downward until the bottom of the LED module spacing control mechanism 4 moves down to the limit position. At this time, multiple LED module supporting mechanisms 5 are driven by the LED module spacing control mechanism 4, and the gap between two adjacent LED module supporting mechanisms 5 increases, and the gap is used to perform the next step of the LED module unit 6 installation operation; the specific process is: manually pull the side frame component 15 and the side frame component 2 16 in opposite directions on both sides until the position indicating wire groove 153 on the extension arm 152 is exposed outside the receiving groove inside the upper horizontal plate 11, and Ensure that the position indicating line groove 153 is just flush with the end of the upper horizontal plate 11, then insert the regular hexagonal prism in the adjusting wrench 7 into the regular hexagonal groove at the top of the screw rod 47, and rotate the adjusting wrench 7 to drive the screw rod 47 to rotate. Since the screw rod 47 is rotatably connected to the upper horizontal plate 11 and the lower horizontal plate 12 respectively, and is threadedly connected to the screw rod sleeve 46, therefore, under the drive of the screw rod 47, the spacing control unit 1 41, the spacing control unit 2 42, the spacing control unit 3 43 and the spacing control unit 4 44 move downward synchronously until the spacing control unit 4 44 located at the bottom is against the top of the lower horizontal plate 12, and the LED module spacing control mechanism 4 moves down to its extreme position. At this time, the adjusting wrench 7 cannot drive the LED module spacing control mechanism 4 to rotate. Since the connecting column connected to the slider 58 is slidably set in the driving groove 4133, when the LED module spacing adjustment mechanism 4 moves downward, the circular plate 4131 uses the inclined driving groove 4133 to synchronously push the multiple LED module supporting mechanisms 5 to move horizontally, and since the driving grooves 4133 in two adjacent circular plates 4131 have different inclination degrees and tend to gradually increase from the middle of the circular plate 4131 to one side, the inclination trend of the driving groove 4133 changes linearly. Therefore, when the circular plate 4131 moves down to the extreme position, the spacing between two adjacent LED module supporting mechanisms 5 increases synchronously.

[0067] Step 2: Install the LED module units 6 on each LED module supporting mechanism 5 in sequence to ensure a stable connection between each LED module unit 6 and the LED module supporting mechanism 5. Then, use the adjusting wrench 7 again to drive the LED module spacing control mechanism 4 to move up to the original position, and then adjust the width of the LED display screen frame 1 on both sides to the original position, and use the fastening bolts to lock the width of the LED display screen frame 1. The specific process is: since an assembly frame 62 is provided on the outside of the LED module body 61, and an assembly groove is provided on its outer wall, at this time, the spacing of the assembly grooves on the left and right sides of the outer wall of the LED module unit 6 is adapted to the relative side wall spacing between the two limit rods 56. Insert the LED module unit 6 from above the two limit rods 56 until the two limit rods 56 are respectively inserted into the assembly grooves on both sides of the outer wall of the assembly frame 62. The LED module unit 6 can be stably installed in the LED module supporting mechanism 5 under the action of its own gravity. Next, the adjusting wrench 7 is used again to drive the screw rod 47 to rotate in the opposite direction, and the LED module spacing control mechanism 4 is driven to restore the original position. Under the drive of the LED module spacing control mechanism 4, the multiple LED module supporting mechanisms 5 move in the opposite direction of step one, and the two adjacent LED module units 6 gradually approach each other until the gap therebetween is gradually reduced to near zero. Then, the side frame assembly 1 15 and the side frame assembly 2 16 are pushed back to their original positions, and the side frame assembly 1 15, the side frame assembly 2 16 and the upper horizontal plate 11 and the lower horizontal plate 12 are locked with the fastening bolts.

[0068] Step three, when expanding the width of the LED display screen, remove the heat dissipation back plate 2, adjust the LED module spacing control mechanism 4, and then use the adjustment wrench 7 to drive the LED module spacing control mechanism 4 down to the limit position. When the LED module spacing control mechanism 4 moves down from the upper original position to the limit position, the gap between the two adjacent LED module supporting mechanisms 5 increases. At this time, adjust the installation size of the LED module supporting mechanism 5 to the limit value, and then install the LED module unit 6 and the LED module supporting mechanism 5 of the new size. The specific process is as follows: according to the design, when the extension arm 54 moves outward to the limit position of the internal storage groove of the load-bearing rod 51, that is, when the position indicating wire groove 55 and the end of the load-bearing rod 51 are flush, the width between the opposite side walls of the two limit rods 56 can just meet the requirement of the LED module unit 6 of the only new width size to be assembled inside it, that is, on the basis of the original LED display screen, the LED module unit 6 of the original width size can be replaced with an LED module unit 6 of another size; secondly, according to another design requirement, within a certain range, every time the circular plate 4131 rotates one scale angle, the driving groove 4133 can move down to the limit position, which can push the horizontal movement distance of the LED module bearing mechanism 5 to increase by a fixed length. When two adjacent driving units 413 located on the same side of the lifting plate 411 rotate in the same direction from the original initial position to a difference of four scales, and the LED module spacing control mechanism 4 moves down to the limit position, the gap distance between the two adjacent LED module bearing mechanisms 5 can meet the adjustment of the positions of the two limiting rods 56 to the limit position, and when the new width size LED module unit 6 is installed, a gap for installation and maintenance can be reserved between the two adjacent LED module bearing mechanisms 5. Then, according to the design, the heat dissipation back plate 2 is disassembled, and the limiting rod 1 416 that fixes and locks the two adjacent driving units 413 is disassembled, and the inclination angle of the driving slots 4133 in the multiple driving units 413 is manually adjusted in turn. Referring to the scale line groove 412 and the pointer 4132, the two adjacent driving units 413 located on the same side of the lifting plate 411 are rotated in the same direction from the original initial position to a difference of four scales, and then the limiting rod 1 416 is used to lock the positions of the two adjacent circular plates 4131. Next, the side frame assembly 15 and the side frame assembly 2 16 are manually pulled in opposite directions on both sides until the position indicating wire groove 153 on the extension arm 152 is exposed outside the receiving groove inside the upper horizontal plate 11, and the position indicating wire groove 153 is ensured to be flush with the end of the upper horizontal plate 11. At this time, a section of the guide rail 131 or the guide rail 2 132 is connected to the two ends of the guide rail assembly 13 to extend the length of the guide rail assembly 13.Next, the screw rod 47 is rotated with the help of the adjusting wrench 7 to drive the spacing control unit 1 41, spacing control unit 2 42, spacing control unit 3 43 and spacing control unit 4 44 to move downward until the spacing control unit 4 44 moves downward to the limit position. At this time, the side frame assembly 1 15 and the side frame assembly 2 16 are kept at a distance from the LED module support mechanism 5 at the edge. Next, the two limit rods 2 56 in the LED module support mechanism 5 are moved to the limit position, and the position of the limit rods 2 56 is locked with bolts. The LED module units 6 of the new width size are installed in the multiple LED module support mechanisms 5 that have been adjusted. The installation method is the same as the installation method in step 1. Then, the regular hexagonal prism in the adjusting wrench 7 is inserted into the regular hexagonal groove at the top of the screw rod 47. The adjusting wrench 7 is turned again to drive the screw rod 47 to rotate in the opposite direction. The spacing control unit 1 41, spacing control unit 2 42, spacing control unit 3 43 and spacing control unit 4 4 4, and then the side frame assembly 1 15 and the side frame assembly 2 16 are respectively pushed toward the center of the LED display screen frame 1 until the side walls of the side frame assembly 15 and the side frame assembly 2 16 and the two ends of the guide rail assembly 13 abut against each other. At this time, the LED module units 6 located at the leftmost and rightmost positions are also tightly attached to the inner walls of the side frame assembly 15 and the side frame assembly 2 16 at the same time, and the side frame assembly 15, the side frame assembly 2 16 and the upper horizontal plate 11 and the lower horizontal plate 12 are locked by bolts.

[0069] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An LED display installation and maintenance device for advertising, characterized in that: include: The LED display screen frame has a detachable heat dissipation back plate on its back for sealing its internal space, and support rods for ground installation are fixedly provided on both left and right sides of the bottom of the LED display screen frame; The LED module bearing mechanism is arranged in a rectangular array distribution manner inside the LED display screen frame, and each LED module bearing mechanism is detachably provided with an LED module unit on its outer wall, and a plurality of the LED module units are arranged in sequence and at equal distances to form an LED display screen for advertising; The LED module spacing control mechanism is arranged inside the LED display screen frame and is used to synchronously control the spacing between multiple LED module bearing mechanisms, thereby providing operating space for the installation or maintenance of the LED module units; An adjusting wrench, which is detachably arranged on the LED module spacing adjustment mechanism, and is used to drive the LED module spacing adjustment mechanism to complete the adjustment of the spacing of the LED module bearing mechanism; The LED display screen frame includes an upper horizontal plate and a lower horizontal plate vertically distributed on the upper and lower sides and storage grooves opened at both ends of the upper horizontal plate and the lower horizontal plate. A plurality of guide rail assemblies are evenly arranged between the opposite side walls of the upper horizontal plate and the lower horizontal plate. The upper horizontal plate, the lower horizontal plate and the guide rail assembly are fixedly connected by a plurality of connecting plates 1. The upper horizontal plate and the lower horizontal plate are respectively slidably arranged in the storage grooves at the left and right ends with a side frame assembly 1 and a side frame assembly 2. The side frame assembly 1, the side frame assembly 2 and the upper horizontal plate and the lower horizontal plate are locked in position by fastening bolts. The top of the lower horizontal plate is provided with an avoidance groove for extending the descending height of the LED module spacing regulating mechanism. The structures of the side frame assembly 1 and the side frame assembly 2 are exactly the same. The side frame assembly 1 includes a side plate and two extension arms 1 fixedly arranged on the upper and lower sides of the same side wall of the side plate, respectively. The two extension arms 1 are respectively slidably arranged in the receiving grooves at the ends of the upper horizontal plate and the lower horizontal plate, and a position indicating wire groove 1 is opened on the outer wall of the extension arm 1 to prompt it to move outward from the receiving groove to the limit length.

2. The LED display installation and maintenance device for advertising according to claim 1 is characterized by: The guide rail assembly comprises a guide rail 1 and a guide rail 2 which are alternately connected head to tail through flanges. The structures of the guide rail 1 and the guide rail 2 are completely the same, and T-shaped sliding grooves are provided on the outer walls of the two.

3. The LED display installation and maintenance device for advertising according to claim 1 is characterized in that: The LED module spacing control mechanism includes spacing control unit 1, spacing control unit 2, spacing control unit 3 and spacing control unit 4 which are equidistantly arranged from top to bottom. The spacing control unit 1, spacing control unit 2, spacing control unit 3 and spacing control unit 4 are connected by multiple connecting plates 2, and a screw sleeve is fixedly provided on the outer wall of one of the connecting plates 2, and a screw is connected to the internal thread of the screw sleeve.

4. The LED display installation and maintenance device for advertising according to claim 3 is characterized in that: The spacing control unit 1 includes a lifting plate and mounting grooves evenly arranged inside the lifting plate, circular through grooves evenly arranged on the outer wall of the lifting plate that correspond to and communicate with the mounting grooves one by one, and scale line grooves evenly arranged on the outer wall of the lifting plate and located around the circular through grooves, and driving units are symmetrically arranged in the mounting grooves on both sides of the lifting plate, and two adjacent driving units are locked by a limit rod 1.

5. The LED display screen installation and maintenance device for advertising according to claim 4 is characterized in that: The driving unit comprises a circular plate rotatably arranged in the installation groove and a pointer evenly fixedly arranged on the outer wall of the circular plate for use in conjunction with the scale line groove. A driving through groove is opened on the side wall of the circular plate.

6. The LED display screen installation and maintenance device for advertising according to claim 5, characterized in that: The inclination angles of the driving through grooves in the plurality of circular plates symmetrically arranged on both sides of the lifting plate change linearly in sequence.

7. The LED display screen installation and maintenance device for advertising according to claim 1, characterized in that: The LED module bearing mechanism includes a bearing rod and storage grooves provided at both ends of the bearing rod, a vertical plate is fixedly provided on the top of the bearing rod, sleeves are fixedly provided on the four corners of the outer wall of the vertical plate, an extension arm 2 is slidably provided in the storage groove, the position of the extension arm 2 and the bearing rod is locked by a fastening bolt, a position indicating wire groove 2 for indicating that the extension arm 2 moves outward to the storage groove to the extreme position is provided on the outer wall of the extension arm 2, and a limiting rod 2 is fixedly provided at one end of the extension arm 2 away from the bearing rod, a bearing plate is provided on one side of the vertical plate, a slider is fixedly provided on the outer wall of the bearing plate through a connecting column, and docking columns corresponding to the position of the sleeve are fixedly provided on the four corners of the side wall of the bearing plate away from the slider, and the docking columns are detachably provided inside the sleeve; The LED module unit comprises an LED module body and an assembly frame fixedly sleeved outside the LED module body, and an assembly groove is provided on the outer wall of the assembly frame.

8. A method for installing and maintaining an LED display screen for advertising, characterized in that: Using the installation and maintenance device for an LED display screen for advertising as described in any one of claims 1 to 7, the method comprises the following steps: Step 1: When installing the LED module unit, widen the internal space width of the LED display screen frame, and use the adjustment wrench to drive the LED module spacing control mechanism to move downward until the bottom of the LED module spacing control mechanism moves down to the limit position. At this time, multiple LED module bearing mechanisms are driven by the LED module spacing control mechanism, and the gap between two adjacent LED module bearing mechanisms increases. Use this gap to perform the next step of LED module unit installation operation; Step 2: Install the LED module units on each LED module bearing mechanism in turn to ensure a stable connection between each LED module unit and the LED module bearing mechanism. Then, use the adjustment wrench again to drive the LED module spacing control mechanism to move up to the original position, and then adjust the width of both sides of the LED display frame to the original position, and use the fastening bolts to lock the width of the LED display frame. Step 3: When expanding the width of the LED display screen, remove the heat dissipation backplane, adjust the LED module spacing control mechanism, and then use the adjustment wrench to drive the LED module spacing control mechanism down to the limit position. When the LED module spacing control mechanism moves down from the upper original position to the limit position, the gap between the two adjacent LED module bearing mechanisms increases. At this time, adjust the installation size of the LED module bearing mechanism to the limit value, and install the new size of the LED module unit and the LED module bearing mechanism.

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