An electronic large-screen assembly device

Abstract

The present invention is applicable to the field of display screen technology, and provides an electronic large screen assembly device, which includes an assembly base, a plurality of assembly parts, and a display screen fixedly installed on the assembly parts; the assembly parts include: a mounting frame and a sliding frame slidably arranged on the mounting frame; the mounting frame includes: two groups of C-shaped mounting plates and a baffle for connecting the two C-shaped mounting plates; electric push rods are symmetrically arranged between the U-shaped plate and the two C-shaped mounting plates; adjacent assembly parts are slidably matched. By starting the rigid chain lifting mechanism, the outermost mounting frame is lifted, and the adjacent assembly parts are driven to rise in sequence. When multiple assembly parts rise and unfold, each electric push rod is started to drive each sliding frame to move horizontally, so that the corresponding guide plate drives the adjacent mounting frame to move horizontally, and the insertion rod on the mounting frame is inserted into the lower mounting frame, realizing the rapid and accurate assembly of each group of display screens, and improving the assembly and disassembly efficiency of the electronic large screen.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and more specifically, it relates to an electronic large-screen assembly device. Background Art

[0002] At present, it has been a widely adopted medium to spread multimedia electronic information through display screens. And it is a new technological means to form one or a group of large display screens by assembling several small display screens to obtain better dissemination effects and visual experiences. There are mainly two types of splicing screens. One is the traditional hard splicing technology for large-screen display walls, and the other is the seamless splicing technology of projectors using edge fusion technology. Conductive sheets for electrically connecting to adjacent display screens are provided on the sides of the small display screens in the seamless splicing technology to achieve better splicing conduction effects.

[0003] Most of them are used for playing outdoor advertisements, stage background videos, public place information, etc. Most of the display screens used outdoors adopt a box structure and are spliced with boxes during use. However, general boxes are large in volume and heavy in weight. When installed and used, brackets with very high installation strength requirements are needed to fix the boxes, and hydraulic lifting or hoisting equipment with a large external occupied space is required for hoisting, which is extremely inconvenient for the installation and disassembly of large display screens and reduces the assembly and disassembly efficiency of electronic large display screens. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention lifts the outermost mounting frame by starting the rigid chain lifting mechanism, successively drives the adjacent assembly parts to rise, until multiple assembly parts rise and unfold. Then, each electric push rod is started to drive each sliding frame to move horizontally, so that the corresponding guide plate drives the adjacent mounting frame to move horizontally, and the insertion rod on the mounting frame is inserted into the lower mounting frame, realizing the rapid and precise assembly of each group of display screens and improving the assembly and disassembly efficiency of the electronic large display screen.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An electronic large-screen assembling device, comprising an assembling base, a plurality of assembling parts, and a display screen fixedly installed on the assembling parts; the assembling parts include: a mounting frame and a sliding frame slidably arranged on the mounting frame; the mounting frame includes: two groups of C-shaped mounting plates arranged relatively parallel and a baffle for connecting the two C-shaped mounting plates; the display screen is installed between the two C-shaped mounting plates; the sliding frame includes: a U-shaped plate, and the U-shaped plate is slidably arranged between the two C-shaped mounting plates; two guide plates, and the two guide plates are fixedly installed at both ends of the U-shaped plate; electric push rods are symmetrically arranged between the U-shaped plate and the two C-shaped mounting plates; one of the assembling parts is fixedly installed on the assembling base through a fastening bolt; adjacent assembling parts are slidably matched with each other.

[0007] The present invention is further arranged as follows: a plug-in groove is opened at a position near the top of one side surface of the C-shaped mounting plate; a plug-in hole is opened at the bottom surface of the plug-in groove, and an ear plate is fixedly connected near its bottom; a plug rod is arranged on the side surface of the ear plate; the ear plate and the plug rod on one mounting frame are respectively plugged and matched with the plug-in groove and the plug-in hole on the adjacent mounting frame.

[0008] The present invention is further arranged as follows: a slider is fixedly connected to the side surface of the C-shaped mounting plate near the ear plate; a first sliding groove is opened on the other opposite side surface of the C-shaped mounting plate; a second sliding groove is opened on the side surface of the guide plate; the two sliders on the mounting frame are slidably matched with the second sliding grooves on the adjacent sliding frame, and the two first sliding grooves are slidably matched with the two sliders on the adjacent mounting frame; the bottoms of the first sliding groove and the second sliding groove are both open.

[0009] The present invention is further arranged as follows: guide grooves are symmetrically opened on the two opposite side surfaces of the U-shaped plate; a sliding plate slidably matched with the guide grooves is fixedly connected to the side surface of the C-shaped mounting plate.

[0010] The present invention is further arranged as follows: a positioning hole is opened at a position near the first sliding groove on the side surface of the C-shaped mounting plate; mounting holes are symmetrically opened on the side surface of the assembling base; the positioning hole on one mounting frame is fixedly connected with the corresponding mounting hole through a fastening bolt, and the two C-shaped mounting plates are plugged into the assembling base.

[0011] The present invention is further arranged as follows: a rigid chain lifting mechanism is fixedly installed on the side surface of the assembling base; the rigid chain lifting mechanism includes a horizontal base fixedly installed on the side surface of the assembling base; vertical bases are communicated with both ends of the horizontal base; two groups of main guide rails are arranged from top to bottom inside the horizontal base and the two vertical bases; both of the two main guide rails include a lower horizontal guide rail, a middle curved guide rail and an upper vertical guide rail which are connected in sequence; the lower horizontal guide rail is arranged on the horizontal base; the middle curved guide rail is arranged on the vertical base; the upper vertical guide rail is arranged on the vertical base.

[0012] The present invention is further configured such that: rigid chains are slidably engaged with both of the main guide rails; a driving motor is fixedly installed on the inner wall of the vertical base; the output end of the driving motor is connected to a pin wheel adapted to the two rigid chains through a speed reducer; U-shaped support plates are fixedly connected to both ends of the two rigid chains; and the U-shaped support plates are inserted and engaged with the corresponding ear plates.

[0013] The present invention is further configured such that: mounting grooves are formed on the surface of the baffle; L-shaped wire guiding grooves are symmetrically formed on both sides of the baffle at both sides of the mounting groove; a pin shaft is slidably engaged inside the L-shaped wire guiding groove; a compression spring is arranged between one end of the pin shaft and the L-shaped wire guiding groove, and a connecting rope for passing through the L-shaped wire guiding groove is fixedly connected to its end; a plug board inserted and engaged with the mounting groove is fixedly connected to the side surface of the display screen; pin holes inserted and engaged with the pin shaft are symmetrically formed at both ends of the plug board; and a conducting piece for electrically connecting with an adjacent display screen is arranged on the bottom surface of the display screen.

[0014] The advantages of the present invention are as follows:

[0015] 1. By pulling the two connecting ropes, the two pin shafts are driven to slide into the L-shaped wire conduits, the compression springs are compressed, the display screen is slid between the two C-shaped mounting plates in the mounting frame, the plug board on the side surface of the display screen is inserted into the mounting groove on the baffle, and when the two connecting ropes are released, under the elastic restoring force of the compression springs, the pin shafts are driven to insert into the pin holes on the side surface of the display screen, realizing the quick installation of the display screen, and at the same time, facilitating the quick disassembly of the display screen.

[0016] 2. By starting the driving motor to drive the pin wheel to rotate, the two rigid chains are driven to move synchronously and reversely, extend out of the corresponding vertical base, and the U-shaped support plates support the outermost mounting frame, realizing the lifting of each assembled part, replacing the traditional external hydraulic lifting or hoisting equipment, occupying a small space, having excellent load-bearing capacity, and being convenient to use.

[0017] 3. By starting the rigid chain lifting mechanism to lift the outermost mounting frame, driving the adjacent assembled parts to rise in sequence, until multiple assembled parts rise and unfold, starting each electric push rod to drive each sliding frame to move horizontally, so that the corresponding guide plate drives the adjacent mounting frame to move horizontally, and the insertion rod on the mounting frame is inserted into the lower mounting frame, realizing the quick and precise assembly of each group of display screens, and improving the assembly and disassembly efficiency of the electronic large screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an electronic large screen assembling device of the present invention in an unfolded state.

[0019] Figure 2 It is a schematic structural diagram of an electronic large screen assembling device of the present invention in an unfolded state from a rear view perspective.

[0020] Figure 3 This is a schematic structural view of an electronic large - screen assembly device in a storage state according to the present invention.

[0021] Figure 4 This is a schematic structural view of an assembly part according to the present invention.

[0022] Figure 5 This is a schematic structural view of a mounting bracket according to the present invention.

[0023] Figure 6 This is a schematic structural view of a sliding bracket according to the present invention.

[0024] Figure 7 This is a schematic structural view of a display screen according to the present invention.

[0025] Figure 8 This is a schematic structural view of an assembly of a mounting bracket and a display screen according to the present invention.

[0026] Figure 9 This is a schematic structural view of an assembly base according to the present invention.

[0027] Figure 10 This is a schematic structural view of the assembly base from another angle according to the present invention.

[0028] Figure 11 This is a flowchart of the assembly according to the present invention.

[0029] In the figure: 1. Assembly base; 2. Assembly part; 3. Display screen; 4. Mounting bracket; 5. Sliding bracket; 6. C - shaped mounting plate; 7. Baffle; 8. U - shaped plate; 9. Guide plate; 10. Electric push rod; 11. Insertion slot; 12. Insertion hole; 13. Ear plate; 14. Insertion rod; 15. Slide block; 16. First chute; 17. Second chute; 18. Guide groove; 19. Slide plate; 20. Positioning hole; 21. Mounting hole; 22. Rigid - chain lifting mechanism; 23. Horizontal base; 24. Vertical base; 25. Rigid chain; 26. Driving motor; 27. Pin wheel; 28. U - shaped support plate; 29. Mounting groove; 30. L - shaped guide rope groove; 31. Pin shaft; 32. Compression spring; 33. Display screen; 34. Insertion plate; 35. Pin - shaft hole. Detailed implementation manners

[0030] It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0031] It should be pointed out that unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0032] In the present invention, unless otherwise specified, the orientations such as "upper" and "lower" generally refer to the directions shown in the drawings, or to the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left" and "right" generally refer to the left and right shown in the drawings; "inner" and "outer" refer to the inner and outer of the contours of the respective components themselves, but the above orientation terms are not used to limit the present invention.

[0033] Embodiment 1

[0034] Please refer to Figures 1-11 , the present invention provides the following technical solutions:

[0035] Specifically, it includes an assembled base 1, a number of assembled parts 2, and a display screen 3 fixedly installed on the assembled part 2; the assembled part 2 includes: a mounting frame 4 and a sliding frame 5 slidably arranged on the mounting frame 4; the mounting frame 4 includes: two sets of C-shaped mounting plates 6 arranged relatively parallel and a baffle 7 for connecting the two C-shaped mounting plates 6; the display screen 3 is installed between the two C-shaped mounting plates 6; the sliding frame 5 includes: a U-shaped plate 8 and two guide plates 9; the U-shaped plate 8 is slidably arranged between the two C-shaped mounting plates 6; the two guide plates 9 are fixedly installed at both ends of the U-shaped plate 8; electric push rods 10 are symmetrically arranged between the U-shaped plate 8 and the two C-shaped mounting plates 6; one assembled part 2 is fixedly installed on the assembled base 1 through a fastening bolt; adjacent assembled parts 2 are slidably matched.

[0036] The specific implementation manner of this Embodiment 1 is: by lifting the outermost mounting frame 4 upwards, successively driving the adjacent assembled parts 2 to rise, until a plurality of assembled parts 2 rise and unfold, starting each electric push rod 10, driving each group of sliding frames 5 to move horizontally, so that the corresponding guide plates 9 drive the adjacent mounting frames 4 to move horizontally, enabling the insertion rods 14 on the mounting frames 4 to be inserted into the lower mounting frames 4, realizing the rapid and precise assembly of each group of display screens 3, and improving the assembly and disassembly efficiency of the electronic large screen.

[0037] Embodiment 2

[0038] Please refer to Figures 1-6 and Figure 11, in the second embodiment, the following improvements are made on the basis of the first embodiment. Specifically, a plug-in slot 11 is formed at a position close to the top on one side surface of the C-shaped mounting plate 6; a plug-in hole 12 is formed on the inner bottom surface of the plug-in slot 11, and an ear plate 13 is fixedly connected to a position close to the bottom thereof; a plug rod 14 is arranged on the side surface of the ear plate 13; the ear plate 13 and the plug rod 14 on one mounting frame 4 are respectively in plug-in fit with the plug-in slot 11 and the plug-in hole 12 on the adjacent mounting frame 4; a sliding block 15 is fixedly connected to the side surface of the C-shaped mounting plate 6 close to the ear plate 13; a first sliding groove 16 is formed on the other opposite side surface of the C-shaped mounting plate 6; a second sliding groove 17 is formed on the side surface of the guide plate 9; the two sliding blocks 15 on the mounting frame 4 are in sliding fit with the second sliding groove 17 on the adjacent sliding frame 5, and the two first sliding grooves 16 are in sliding fit with the two sliding blocks 15 on the adjacent mounting frame 4; the bottoms of the first sliding groove 16 and the second sliding groove 17 are both open; guide grooves 18 are symmetrically formed on the two opposite side surfaces of the U-shaped plate 8; a sliding plate 19 which is in sliding fit with the guide groove 18 is fixedly connected to the side surface of the C-shaped mounting plate 6; a positioning hole 20 is formed on the side surface of the C-shaped mounting plate 6 close to the first sliding groove 16; mounting holes 21 are symmetrically formed on the side surface of the assembly base 1; the positioning hole 20 on one mounting frame 4 is fixedly connected with the corresponding mounting hole 21 through a fastening bolt, and the two C-shaped mounting plates 6 are inserted into the assembly base 1.

[0039] The specific implementation manner of the second embodiment is as follows: As Figure 11 shown in the figure, Fig. (a) is a schematic structural diagram of the electronic large-screen assembly device in the storage state; Fig. (b), Fig. (c) and Fig. (d) are schematic structural diagrams of the electronic large-screen assembly device in the lifting state; Fig. (e) is a schematic structural diagram of the electronic large-screen assembly device in the unfolded state; a group of assembly parts 2 are fixedly installed in the assembly base 1 through fastening bolts, and the remaining adjacent assembly parts 2 are slidably arranged with each other.

[0040] The operation process of Fig. (b) is as follows: By starting the rigid chain lifting mechanism 22, the two U-shaped supporting plates 28 support the two ear plates 13 on the outermost mounting frame 4, and the mounting frame 4 is lifted along the second sliding groove 17 on the adjacent sliding frame 5.

[0041] The operation process of Fig. (c) is as follows: When the sliding block 15 on the outermost mounting frame 4 slides to the inner top of the second sliding groove 17 on the adjacent sliding frame 5, the rigid chain lifting mechanism 22 continues to lift, so that the outermost mounting frame 4 together with the adjacent assembly parts 2 is lifted along the assembly parts 2 fixed on the assembly base 1.

[0042] The operation process of Fig. (d) is as follows: When the assembly part 2 adjacent to the outermost mounting frame 4 slides to the inner top of the second sliding groove 17 on the fixed mounting frame 4, the lifting of each group of assembly parts 2 is completed.

[0043] The operation process in Figure (e) is as follows: after completing the above operation process, the ear plate 13 and the plug rod 14 on one mounting frame 4 are respectively coaxially arranged with the plug slot 11 and the plug hole 12 on the adjacent mounting frame 4, and each electric push rod 10 is started to drive each group of sliding frames 5 to move horizontally, so that the corresponding guide plate 9 drives the adjacent mounting frame 4 to move horizontally, so that the plug rod 14 on the mounting frame 4 is inserted into the mounting frame 4 below, so as to realize the fast and accurate assembly of each group of display screens 3.

[0044] Embodiment 3

[0045] See also Figures 9-11 , this embodiment three makes the following improvements on the basis of embodiment two, specifically, a rigid chain lifting mechanism 22 is fixedly installed on the side of the assembled base 1; the rigid chain lifting mechanism 22 includes a horizontal base 23 fixedly installed on the side of the assembled base 1; both ends of the horizontal base 23 are connected to a vertical base 24; two sets of main rails are arranged inside the horizontal base 23 and the two vertical bases 24 from top to bottom; the two main rails include a lower horizontal guide rail, a middle curved guide rail and an upper vertical guide rail connected in sequence; the lower horizontal guide rail is arranged on the horizontal base 23; the middle curved guide rail is arranged on the vertical base 24; the upper vertical guide rail is arranged on the vertical base 24; the two main rails are slidably matched with a rigid chain 25; a driving motor 26 is fixedly installed on the inner wall of the vertical base 24; the output end of the driving motor 26 is connected to a pin wheel 27 compatible with the two rigid chains 25 through a reduction box; the ends of the two rigid chains 25 are fixedly connected with a U-shaped support plate 28; the U-shaped support plate 28 is plugged and matched with the corresponding ear plate 13.

[0046] The specific implementation method of the third embodiment is as follows: by starting the driving motor 26 to drive the pin wheel 27 to rotate, the two rigid chains 25 are driven to move synchronously in opposite directions, and the corresponding base 24 is extended, so that the U-shaped support plate 28 supports the outermost mounting frame 4, thereby lifting each assembly part 2, replacing the traditional external hydraulic lifting or hoisting equipment, occupying a small space, having excellent load-bearing capacity, and being easy to use.

[0047] Embodiment 4

[0048] See also Figure 5 , Figure 7 and Figure 8 , this fourth embodiment makes the following improvements on the basis of the second embodiment. Specifically, a mounting groove 29 is opened on the surface of the baffle 7; L-shaped rope guide grooves 30 are symmetrically opened on the side of the baffle 7 located on both sides of the mounting groove 29; a pin shaft 31 is slidably fitted inside the L-shaped rope guide groove 30; an extrusion spring 32 is arranged between one end of the pin shaft 31 and the L-shaped rope guide groove 30, and a connecting rope 33 for passing through the L-shaped rope guide groove 30 is fixedly connected to the end of the extrusion spring 32; a plug-in plate 34 plug-fitting with the mounting groove 29 is fixedly connected to the side of the display screen 3; pin shaft holes 35 plug-fitting with the pin shaft 31 are symmetrically opened at both ends of the plug-in plate 34; a guide piece for electrically connecting with an adjacent display screen 3 is arranged on the bottom surface of the display screen 3.

[0049] The specific implementation manner of the fourth embodiment is as follows: By pulling the two connecting ropes 33, the two pin shafts 31 are driven to slide into the L-shaped wire conduit 30, and the compression spring 32 is compressed. The display screen 3 is slid between the two C-shaped mounting plates 6 in the mounting frame 4, so that the insertion plate 34 on the side of the display screen 3 is inserted into the mounting groove 29 on the baffle 7. Then, the two connecting ropes 33 are released. Under the elastic reset force of the compression spring 32, the pin shafts 31 are driven to be inserted into the pin shaft holes 35 on the side of the display screen 3, realizing the quick installation of the display screen 3. At the same time, it is convenient for the quick disassembly of the display screen 3.

[0050] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] It should be noted that the terms used herein are only for describing the specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0052] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0053] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0054] The above is only the preferred implementation manner of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the idea of the present invention shall belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An electronic large-screen assembly device, comprising an assembly base (1), a number of assembly parts (2), and a display screen (3) fixedly installed on the assembly parts (2); characterized in that: The assembly parts (2) include: A mounting frame (4) and a sliding frame (5) slidably arranged on the mounting frame (4); The mounting frame (4) includes: Two groups of C-shaped mounting plates (6) arranged relatively parallel and a baffle (7) for connecting the two C-shaped mounting plates (6); the display screen (3) is installed between the two C-shaped mounting plates (6); The sliding frame (5) includes: A U-shaped plate (8), and the U-shaped plate (8) is slidably arranged between the two C-shaped mounting plates (6); Two guide plates (9), and the two guide plates (9) are fixedly installed at both ends of the U-shaped plate (8); Electric push rods (10) are symmetrically arranged between the U-shaped plate (8) and the two C-shaped mounting plates (6); One of the assembly parts (2) is fixedly installed on the assembly base (1) through a fastening bolt; adjacent assembly parts (2) are slidably matched.

2. The electronic large-screen assembly device according to claim 1, characterized in that: A plug-in groove (11) is opened at a position near the top of one side surface of the C-shaped mounting plate (6); a plug-in hole (12) is opened at the bottom surface of the plug-in groove (11), and an ear plate (13) is fixedly connected near its bottom; a plug rod (14) is arranged on the side surface of the ear plate (13); the ear plate (13) and the plug rod (14) on one mounting frame (4) are respectively inserted and matched with the plug-in groove (11) and the plug-in hole (12) on the adjacent mounting frame (4).

3. An electronic large-screen assembly device according to claim 2, characterized in that: A slider (15) is fixedly connected to the side surface of the C-shaped mounting plate (6) near the ear plate (13); a first sliding groove (16) is opened on the other opposite side surface of the C-shaped mounting plate (6); a second sliding groove (17) is opened on the side surface of the guide plate (9); the two sliders (15) on the mounting frame (4) are slidably matched with the second sliding groove (17) on the adjacent sliding frame (5), and the two first sliding grooves (16) are slidably matched with the two sliders (15) on the adjacent mounting frame (4); the bottoms of the first sliding groove (16) and the second sliding groove (17) are both open.

4. An electronic large-screen assembly device according to claim 1, characterized in that: Guide grooves (18) are symmetrically opened on the two opposite side surfaces of the U-shaped plate (8); a sliding plate (19) slidably matched with the guide grooves (18) is fixedly connected to the side surface of the C-shaped mounting plate (6).

5. An electronic large-screen assembly device according to claim 3, characterized in that: A positioning hole (20) is opened at a position near the first sliding groove (16) on the side surface of the C-shaped mounting plate (6); mounting holes (21) are symmetrically opened on the side surface of the assembly base (1); the positioning hole (20) on one mounting frame (4) is fixedly connected to the corresponding mounting hole (21) through a fastening bolt, and the two C-shaped mounting plates (6) are inserted into the assembly base (1).

6. An electronic large screen assembly device according to claim 2, characterized in that: A rigid chain lifting mechanism (22) is fixedly installed on the side of the assembled base (1); the rigid chain lifting mechanism (22) includes a horizontal base (23) fixedly installed on the side of the assembled base (1); vertical bases (24) are communicated with both ends of the horizontal base (23); two groups of main guide rails are arranged in the horizontal base (23) and the two vertical bases (24) from top to bottom; both of the two main guide rails include a lower horizontal guide rail, a middle curved guide rail and an upper vertical guide rail which are connected in sequence; the lower horizontal guide rail is arranged on the horizontal base (23); the middle curved guide rail is arranged on the vertical base (24); the upper vertical guide rail is arranged on the vertical base (24).

7. An electronic large screen assembly device according to claim 6, characterized in that: Rigid chains (25) are slidably fitted on both of the two main guide rails; a driving motor (26) is fixedly installed on the inner wall of the vertical base (24); the output end of the driving motor (26) is connected with a pin wheel (27) adapted to the two rigid chains (25) through a speed reducer; U-shaped support plates (28) are fixedly connected to both ends of the two rigid chains (25); the U-shaped support plates (28) are inserted and fitted with the corresponding ear plates (13).

8. An electronic large-screen assembly device according to claim 1, characterized in that: An installation groove (29) is formed on the surface of the baffle (7); L-shaped wire guide grooves (30) are symmetrically formed on both sides of the installation groove (29) on the side of the baffle (7); a pin shaft (31) is slidably fitted in the L-shaped wire guide groove (30); an extrusion spring (32) is arranged between one end of the pin shaft (31) and the L-shaped wire guide groove (30), and a connecting rope (33) for passing through the L-shaped wire guide groove (30) is fixedly connected to its end; a plug board (34) inserted and fitted with the installation groove (29) is fixedly connected to the side of the display screen (3); pin holes (35) inserted and fitted with the pin shaft (31) are symmetrically formed at both ends of the plug board (34); a guide piece for electrically connecting with an adjacent display screen (3) is arranged on the bottom surface of the display screen (3).

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