New LED display cabinet connection structure

Abstract

The invention discloses a novel LED display box connection structure, comprising a plurality of boxes spliced ​​together to form an LED display screen, wherein the four corners of the boxes have connection protrusions protruding toward the front side of the boxes; the four side ribs of the boxes are all provided with first magnets, and the boxes adjacent to each other are pre-positioned by adsorption of the corresponding first magnets; the front side of the middle part of the four boxes spliced ​​together is provided with a concave connection piece, the concave connection piece cover is provided outside the four connection protrusions corresponding to the middle part of the four boxes spliced ​​together, and is detachably connected thereto, and a mounting screw hole is provided in the middle of the concave connection piece; the four corners of the back side of the middle part of the four boxes spliced ​​together are respectively provided with slots, and the four slots are enclosed to form a mounting groove with a flat bottom wall, a pad with a flat contact surface is laid flat in the mounting groove, a mounting through hole is provided in the middle of the pad, and a mounting bolt that can be screwed into the mounting screw hole is provided through the mounting through hole. The boxes of the invention are firmly connected to each other, and the flatness of the box connection is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of LED display screen cabinet construction and installation, and in particular to a novel LED display screen cabinet connection structure. Background Art

[0002] The LED cabinet connection is of great significance to the LED display screen. It not only ensures the firmness of the connection between the cabinets, but also has a great impact on the flatness. Figure 1 and Figure 2 As shown, there are quick locks between the existing adjacent boxes 1 for quick connection, but because the quick locks cannot bear the weight of the entire screen, a connecting piece 2 is required to assist in the splicing. At present, the connecting piece 2 is basically made of 2.5mm sheet metal iron sheet, and four equidistant 60mmx60mm mounting screw holes are opened on the iron sheet. The connecting piece 2 is attached to the back side of the corner of the four boxes 1, and four screws 3 are passed through the corresponding mounting screw holes respectively, and then connected with the corresponding corner thread of the box 1 to assist in the splicing of the box parts; because the connecting piece 2 needs to be attached to the back side of the corner of the four boxes 1, the connecting piece 2 has a great influence on the flatness of the box 1. The processing technology of the sheet metal iron sheet is a stamping process. After stamping, the burrs are removed, degreased, and powdered (high-end electrophoresis) are sprayed. After completion, the stress deformation of the connecting piece 2 cannot be removed, so there is a problem with the flatness of the connecting piece 2 itself. The cabinet is precision machined by CNC. When the back of the corners of the four cabinets 1 are attached to the uneven connecting piece 2, there will be height differences of varying degrees, which cannot meet the connection requirements when connecting cabinets with small spacing. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides a new LED display screen box connection structure with simple structure, convenient and quick assembly, firm and reliable connection between boxes, and effective guarantee of the flatness of the box connection. It can also eliminate the quick lock and reduce the manufacturing cost.

[0004] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0005] A novel LED display box connection structure includes a plurality of boxes spliced ​​together to form an LED display screen, wherein the four corners of the boxes have connection protrusions protruding toward the front side of the boxes;

[0006] The four side ribs of the box body are all provided with first magnets, and the boxes adjacent to each other are pre-positioned by being adsorbed by the corresponding first magnets;

[0007] A concave connecting piece is provided on the front side of the middle part of the four mutually spliced ​​boxes, and the concave connecting piece covers the four corresponding connecting protrusions in the middle part of the four mutually spliced ​​boxes and is detachably connected thereto, and a mounting screw hole is provided in the middle of the concave connecting piece;

[0008] The four corners of the back side of the middle part of the four mutually spliced ​​boxes are respectively provided with notches, and the four notches are combined to form a mounting groove with a flat bottom wall. A pad with a flat contact surface is laid in the mounting groove, and a mounting through-hole is opened in the middle of the pad. A mounting bolt that can be screwed into the mounting screw hole is arranged through the mounting through-hole. The mounting bolt is screwed into the mounting screw hole and tightened to enable the pad to cooperate with the concave connecting piece to form a clamping mechanism to lock the four adjacent boxes.

[0009] The assembly method of the present invention is:

[0010] The adjacent boxes are pre-positioned by the corresponding first magnets, and then covered by concave connecting pieces outside the four corresponding connecting protrusions in the middle of the four mutually spliced ​​boxes, and connected. Finally, the mounting bolts are passed through the mounting holes and screwed into the mounting screw holes to tighten them, so that the pads cooperate with the concave connecting pieces to form a clamping mechanism to lock the four adjacent boxes.

[0011] The beneficial effects of the present invention are embodied in:

[0012] 1. The flat contact surface of the pad is matched with the flat bottom wall of the installation groove to ensure a firm and reliable connection between the boxes, effectively ensuring the flatness of the box connection, meeting the connection requirements for small-pitch box connections, with a simple structure and convenient and quick assembly;

[0013] 2. The quick locks used in traditional box connections can be eliminated, and the cost of four quick locks can be saved for each box, which can reduce the manufacturing cost of the box by 10%-12%.

[0014] 3. Reduce the CNC processing of the quick lock position and the installation cost of the quick lock in production, improve the box installation efficiency by 35%, and increase the daily box output.

[0015] Furthermore, the outer surface of the concave connecting piece is provided with four bolt holes equidistantly centered on the mounting screw hole, and the top surface of each connecting protrusion is provided with a positioning screw hole, through which a positioning bolt is provided which can be screwed into the corresponding positioning screw hole. The positioning bolt is screwed into the corresponding positioning screw hole to enable the concave connecting piece to position the connection of four adjacent boxes.

[0016] The beneficial effects of adopting the above-mentioned further technical scheme are: on the one hand, by passing the positioning bolt through the bolt hole and screwing it into the corresponding positioning screw hole, the concave connecting piece is prompted to position the connection of the four adjacent boxes, thereby realizing the detachable connection between the concave connecting piece and the four adjacent connecting protrusions; on the other hand, without completely tightening the positioning bolt to compact the concave connecting piece, the concave connecting piece and the pad are allowed to displace toward each other during the process of screwing the mounting bolt into the mounting screw hole, thereby prompting the concave connecting piece to cooperate with the pad to synchronously and gradually lock the four adjacent boxes, and finally completely tighten the positioning bolt, thereby further ensuring that the connection between the boxes is firm and reliable, and effectively ensuring the flatness of the box connection.

[0017] Furthermore, the mounting bolts and positioning bolts are all hexagon socket head bolts.

[0018] The beneficial effect of adopting the above further technical solution is that it is convenient for operators to tighten and loosen the installation bolts and positioning bolts, thereby improving the convenience of assembly and disassembly.

[0019] Furthermore, two first tapered blocks are respectively fixed in the middle of the four inner walls of the concave connecting piece, and second tapered blocks are fixed on the two inner sides of the connecting protrusion corresponding to the first tapered blocks. The inclined surface of the first tapered block and the corresponding inclined surface of the second tapered block can be tightly fitted and pressed together as the mounting bolts are screwed into the mounting screw holes, and when the first tapered block and the corresponding second tapered block are tightly fitted and pressed together, the inner surface of the concave connecting piece and the top surface of the connecting protrusion are in a suspended state.

[0020] The beneficial effect of adopting the above-mentioned further technical solution is: without completely tightening the positioning bolt to compact the concave connecting piece, the first tapered block and the second tapered block are gradually fitted together along their respective inclined surfaces until they are tightly pressed, and at the same time, the inner surface of the concave connecting piece and the top surface of the connecting protrusion remain suspended, thereby ensuring the stability of the gasket and the concave connecting piece in the process of locking the four adjacent boxes and improving the locking reliability.

[0021] Furthermore, the first tapered block and the concave connecting piece are integrally formed.

[0022] The beneficial effect of adopting the above further technical solution is: ensuring the reliability of fixing the first tapered block and the concave connecting piece.

[0023] Furthermore, the second tapered block and the connecting protrusion are integrally formed.

[0024] The beneficial effect of adopting the above further technical solution is: ensuring the reliability of fixing the second tapered block and the connecting protrusion.

[0025] Furthermore, two opposite surfaces of the pad are parallel to each other, and four grooves are equidistantly formed on the outer surface of the pad with the mounting through hole as the center, and each of the grooves is respectively embedded with a second magnet.

[0026] The beneficial effect of adopting the above further technical solution is: it is convenient to magnetically adsorb the pad to the bottom wall of the installation groove through the second magnet, so as to prevent the pad from falling when the operator is working in the air, thereby improving the safety of the operation and the assembly efficiency of the present invention.

[0027] Furthermore, the first magnet and the second magnet are both made of neodymium iron boron magnets.

[0028] The beneficial effect of adopting the above further technical solution is: ensuring the reliability of the first magnet pre-positioning the adjacent box, while ensuring the reliability of the second magnet magnetically adsorbing the pad to the bottom wall of the installation groove, thereby improving operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0030] Figure 1 This is a schematic diagram of the existing box connection structure (before installation);

[0031] Figure 2 This is a schematic diagram of the existing box connection structure (after installation);

[0032] Figure 3 It is a schematic diagram of the front side of the box connection structure of the embodiment;

[0033] Figure 4 It is a schematic diagram of the back side of the box connection structure of the embodiment;

[0034] Figure 5 Schematic diagram of the outer surface structure of the concave connecting piece in the box connection structure of the embodiment;

[0035] Figure 6 Schematic diagram of the inner surface structure of the concave connecting piece in the box connection structure of the embodiment;

[0036] Figure 7 Schematic diagram of the structure of the gasket in the box connection structure of the embodiment;

[0037] Figure 8 This is a structural schematic diagram of one of the boxes in the box connection structure of the embodiment;

[0038] Fig. 9It is a structural schematic diagram of two spliced ​​boxes in the box connection structure of the embodiment;

[0039] Fig.10 It is a structural schematic diagram of four spliced ​​boxes in the box connection structure of the embodiment;

[0040] Fig.11 A side view of four joined boxes in the box connection structure of the embodiment (before gasket assembly)

[0041] Fig.12 It is a partial cross-sectional side view of four spliced ​​boxes in the box connection structure of the embodiment (after gasket assembly).

[0042] In the accompanying drawings, the box body 1, the connecting plate 2, the screw 3, the concave connecting plate 4, the gasket 5, the mounting screw hole 6, the positioning through hole 7, the first taper block 8, the connecting protrusion 9, the positioning screw hole 10, the second taper block 11, the missing groove 12, the first magnet 13, the mounting through hole 14, the groove 15, the second magnet 16, the positioning bolt 17, the mounting groove 18, and the mounting bolt 19. DETAILED DESCRIPTION

[0043] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0044] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0045] A new type of LED display cabinet connection structure, such as Figure 8 As shown, it includes a plurality of boxes 1 spliced ​​together to form an LED display screen, and the four corners of the box 1 have connecting protrusions 9 protruding toward the front side of the box 1;

[0046] like Figure 8 and Fig. 9 As shown, first magnets 13 are arranged on the four side ribs of the box body 1, and the adjacent boxes 1 are pre-positioned by adsorption of the corresponding first magnets 13; wherein the first magnets 13 are made of neodymium iron boron magnets;

[0047] like Figure 3 , Figure 5 and Figure 6As shown, a concave connecting piece 4 is provided at the front side of the middle part of the four mutually spliced ​​boxes 1, and the concave connecting piece 4 is a die-cast aluminum part of 108mm*180mm*29mm, and its inner wall thickness is 6.5mm, and the four corners are rounded R31. The concave connecting piece 4 is covered outside the four corresponding connecting protrusions 9 in the middle part of the four mutually spliced ​​boxes 1, and is detachably connected thereto, and a mounting screw hole 6 is opened in the middle of the concave connecting piece 4, and the mounting screw hole 6 has a threaded hole with M8 thread;

[0048] like Figure 4 , Figure 7 , Figure 8 and Fig. 9 As shown, four corners of the back side of the middle part of the four mutually spliced ​​boxes 1 are respectively provided with notches 12, and the four notches 12 are surrounded to form a mounting groove 18 with a flat bottom wall. A pad with a flat contact surface is laid flat in the mounting groove 18, and a mounting hole 14 is opened in the middle of the pad. Fig.11 and Fig.12 As shown, a mounting bolt 19 which can be screwed into the mounting screw hole 6 is provided through the mounting hole 14. The mounting bolt 19 adopts an M8 hexagon socket head bolt with a length of 54 mm. The mounting bolt 19 is screwed into the mounting screw hole 6 and tightened to enable the gasket and the concave connecting piece 4 to cooperate to form a clamping mechanism to lock the four adjacent boxes 1.

[0049] Specifically, Figure 5 and Figure 8 As shown, the outer surface of the concave connecting piece 4 is provided with four Φ10mm bolt holes equidistantly 60mm*60mm with the mounting screw hole 6 as the center, and a positioning screw hole 10 is provided on the top surface of each connecting protrusion 9. A positioning bolt 17 which can be screwed into the corresponding positioning screw hole 10 is provided through the bolt hole. The positioning bolt 17 is screwed into the corresponding positioning screw hole 10 to facilitate the concave connecting piece 4 to position the connection of four adjacent boxes 1, wherein the positioning bolt 17 adopts a hexagon socket head bolt.

[0050] Preferably, if Figure 6 , Figure 8 and Fig.12 As shown, two first tapered blocks 8 are respectively integrally formed in the middle of the inner walls of the four sides of the concave connecting piece 4, and second tapered blocks 11 are integrally formed on the two inner sides of the connecting protrusion 9 corresponding to the first tapered blocks 8. The inclined surface of the first tapered block 8 and the corresponding inclined surface of the second tapered block 11 can be tightly fitted when the mounting bolt 19 is screwed into the mounting screw hole 6, and when the first tapered block 8 and the corresponding second tapered block 11 are tightly fitted, the inner surface of the concave connecting piece 4 and the top surface of the connecting protrusion 9 are in a suspended state.

[0051] Preferably, if Figure 7 As shown, the two opposite surfaces of the pad are parallel to each other, and the outer surface of the pad is provided with four grooves 15 equidistantly centered on the mounting hole 14, each of the grooves 15 is respectively embedded with a second magnet 16, and the second magnet 16 is a neodymium iron boron magnet.

[0052] The assembly steps of this embodiment are as follows:

[0053] 1. If Fig. 9 As shown, firstly, two boxes 1 with assembled internal structures of the boxes 1 are placed side by side and attracted to each other through the first magnet 13, and then two positioning bolts 17 are used to pass through the corresponding bolt holes at the corners where the two boxes 1 are spliced ​​to connect the concave connecting piece 4 to the box 1, but the two positioning bolts 17 are not tightened;

[0054] 2. If Fig.10 As shown, two more boxes 1 are assembled on top of the two original boxes 1 through the corresponding first magnets 13, arranged in a 2x2 matrix, and two more positioning bolts 17 are passed through the corresponding bolt holes to connect the concave connecting piece 4 with the two newly assembled boxes 1, and the two positioning bolts 17 are not tightened at the same time;

[0055] 3. If Fig.11 and Fig.12 As shown, a pad is then installed on the bottom wall of the mounting groove 18, and the mounting bolts 19 are used to pass through the mounting holes 14 and screwed into the mounting screw holes 6; during the tightening of the mounting bolts 19, the inclined surface of the first tapered block 8 contacts the corresponding inclined surface of the second tapered block 11 and gradually fits and tightens; during this process, when the corners of the four box bodies 1 are uneven or cannot be tightened in parallel at the same time, the flat contact surface of the pad cooperates with the flat bottom wall of the mounting groove 18 to support the box body 1 that has been contacted and no longer moves, while the corners of the box body 1 that are not tightened at the same time continue to move during the tightening of the mounting bolts 19 until the four box bodies 1 contact the pad and no longer move, at which time the mounting bolts 19 are also in a state that cannot be tightened, and at the same time, the inclined surface of the first tapered block 8 is in a completely fitted and tightened state with the corresponding inclined surface block of the second tapered surface, and the inner surface of the concave connecting piece 4 and the top surface of the connecting protrusion 9 are in a suspended state. In this way, the four adjacent corners of the four boxes 1 are in a flat locked state, and the X, Y, and Z axes cannot move. By using this principle, the corners of all boxes 1 are connected through this connection structure, and the splicing can be flat while saving the cost of quick locks.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A novel LED display box connection structure, comprising a plurality of boxes (1) spliced ​​together to form an LED display, wherein the four corners of the boxes (1) have connection protrusions (9) protruding toward the front side of the boxes (1); characterized in that: The four side ribs of the box body (1) are all provided with first magnets (13), and two adjacent boxes (1) are adsorbed and pre-positioned by the corresponding first magnets (13); A concave connecting piece (4) is provided at the front side of the middle part of the four mutually spliced ​​boxes (1), and the concave connecting piece (4) is arranged outside the four corresponding connecting protrusions (9) in the middle part of the four mutually spliced ​​boxes (1) and is detachably connected thereto, and a mounting screw hole (6) is provided in the middle of the concave connecting piece (4); The four corners of the back side of the middle part of the four mutually spliced ​​boxes (1) are respectively provided with notches (12), and the four notches (12) are enclosed to form a mounting groove (18) with a flat bottom wall. A pad with a flat contact surface is laid flat in the mounting groove (18), and a mounting through hole (14) is provided in the middle of the pad. A mounting bolt (19) that can be screwed into the mounting screw hole (6) is arranged through the mounting through hole (14), and the mounting bolt (19) is screwed into the mounting screw hole (6) and tightened to make the pad cooperate with the concave connecting piece (4) to form a clamping mechanism to lock the four adjacent boxes (1); The outer surface of the concave connecting piece (4) is provided with four bolt holes equidistantly centered on the mounting screw hole (6); the top surface of each connecting protrusion (9) is provided with a positioning screw hole (10); a positioning bolt (17) is provided through the bolt hole and can be screwed into the corresponding positioning screw hole (10); the positioning bolt (17) is screwed into the corresponding positioning screw hole (10) to facilitate the concave connecting piece (4) to position the connection of four adjacent boxes (1); In the case where the positioning bolts are not completely tightened to compact the concave connecting pieces, the concave connecting pieces and the backing plate are allowed to move toward each other during the process of screwing the mounting bolts into the mounting screw holes, thereby prompting the concave connecting pieces to cooperate with the backing plate to gradually lock the four adjacent boxes synchronously, and finally the positioning bolts are completely tightened; The mounting bolts (19) and positioning bolts (17) are both hexagon socket head bolts; Two first tapered blocks (8) are respectively fixed in the middle of the inner side walls of the four sides of the concave connecting piece (4), and second tapered blocks (11) are fixed on the two inner sides of the connecting protrusion (9) corresponding to the first tapered blocks (8). The inclined surface of the first tapered block (8) and the corresponding inclined surface of the second tapered block (11) can be tightly fitted into the mounting screw hole (6) when the mounting bolt (19) is screwed into the mounting screw hole (6), and when the first tapered block (8) and the corresponding second tapered block (11) are tightly fitted, the inner surface of the concave connecting piece (4) and the top surface of the connecting protrusion (9) are in a suspended state.

2. According to the new LED display box connection structure of claim 1, it is characterized by: The first tapered block (8) and the concave connecting piece (4) are integrally formed.

3. The new LED display box connection structure according to claim 1 is characterized in that: The second tapered block (11) and the connecting protrusion (9) are integrally formed.

4. The new LED display box connection structure according to any one of claims 1 to 3, characterized in that: The two opposing surfaces of the pad are parallel to each other, and the outer surface of the pad is provided with four grooves (15) equidistantly centered around the mounting hole (14), each of the grooves (15) being embedded with a second magnet (16).

5. According to the new LED display box connection structure of claim 4, it is characterized in that: The first magnet (13) and the second magnet (16) are both made of neodymium iron boron magnets.

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