A die-casting box for LED combination screen that is easy to assemble

Abstract

The present invention relates to the technical field of LED boxes, and specifically discloses a die-cast box for an LED combination screen that is easy to splice and assemble, including a plurality of installation boxes, which are spliced ​​and assembled by a connecting mechanism arranged on the back, a fixing frame is installed inside the plurality of installation boxes, a plurality of magnet blocks are installed on one side outer wall of the fixing frame, a storage slot is provided inside the fixing frame, a shielding mechanism is installed inside the storage slot, and a cleaning mechanism is also provided inside the storage slot. In the invention, when it is necessary to splice and assemble a plurality of installation boxes, after ensuring that the plug-in blocks and sleeves on the back of the two installation boxes are plugged in and adapted, the two adjacent installation boxes can be quickly connected and fixed with the help of the connecting mechanism arranged on the back of the plurality of installation boxes, so that the staff can assemble the plurality of installation boxes without the help of tools and connectors, which can reduce the workload of the staff and improve the efficiency of assembling the plurality of installation boxes.

Description

Technical Field

[0001] The invention relates to the technical field of LED boxes, and in particular to a die-cast box for an LED combination screen which is easy to splice and assemble. Background Art

[0002] LED screen is a new type of imaging electronic device made of light-emitting diodes arranged in sequence. Due to its high brightness, wide viewing angle, long life and other characteristics, it is widely used in stage screens and other products. The use of LED light sources for lighting will first replace power-consuming incandescent lamps, and then gradually enter the entire lighting market, which will save a lot of electricity. Some large LED display screens are usually formed by assembling several LED die-casting boxes together, and then installing multiple LED display screens on the corresponding die-casting box surfaces in sequence.

[0003] In the prior art, when assembling LED die-cast boxes, two people are usually required to align the two LED die-cast boxes together to ensure that the connecting parts of the two LED die-cast boxes are aligned before the subsequent assembly can be carried out with the help of relevant tools and connectors; since a large number of LED die-cast boxes need to be assembled, the entire LED die-cast box assembly process is more troublesome, time-consuming and labor-intensive, which affects the efficiency of assembling multiple LED die-cast aluminum boxes. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to provide a die-cast box body for an LED combination screen that is easy to splice and assemble.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A die-cast box body for an LED combination screen that is easy to splice and assemble comprises a plurality of installation boxes, four corners of the back sides of the plurality of installation boxes are all provided with installation seats, the plurality of installation boxes are all spliced ​​and assembled by means of a connecting mechanism arranged on the back sides, a fixing frame is installed inside the plurality of installation boxes, a plurality of magnet blocks for magnetically fixing to the back side of an LED display screen are installed on an outer wall of the fixing frame on one side close to the front side of the installation box, a storage groove is provided inside the fixing frame, a shielding mechanism for blocking the front side of the installation box is installed inside the storage groove, and a cleaning mechanism for assisting in cleaning the surfaces of the plurality of magnet blocks is also provided inside the storage groove.

[0007] Optionally, the connecting mechanism includes two sets of sleeves and two sets of plug-ins arranged on the back of the installation box, and the ends of the two sets of plug-ins away from the installation box are adapted to the sockets arranged inside the sleeves, and the ends of the two sets of plug-ins away from the installation box are provided with slots.

[0008] Optionally, fixed plates are installed on the back of the installation box near the two sets of plates, and sliding grooves are opened inside the two fixed plates. Double-headed screws are installed inside the sliding grooves, and two sliding blocks are installed on the outer walls of the two double-headed screws.

[0009] Optionally, an insert rod adapted to the slot is installed on the outer wall of the two sliding blocks on the side away from each other, and one end of the two double-headed screws passes through the fixing plate and is connected to a rotating part.

[0010] Optionally, the shielding mechanism includes multiple retractable shielding curtains, which are all installed on an inner wall of one side of the installation box, and the ends of the multiple shielding curtains away from the installation box are all located inside the storage slot, and the ends of the multiple shielding curtains away from the installation box are all installed with connecting plates.

[0011] Optionally, the cleaning mechanism includes a drive motor, which is installed in the center of the installation box. A first electric telescopic rod is installed at the output end of the drive motor, a round block is installed at the telescopic end of the first electric telescopic rod, and a first electromagnet is installed on the outer wall of the round block on one side away from the first electric telescopic rod.

[0012] Optionally, a circular groove is formed on the outer wall of the circular block, and a plurality of electric sliders are installed inside the circular groove. A rotating rod is rotatably installed at one end of the plurality of electric sliders away from the circular groove through a first rotating shaft.

[0013] Optionally, two second electromagnets are installed on one side outer wall of the plurality of rotating rods, a second electric telescopic rod is installed on one end of the plurality of rotating rods away from the electric slider, and a moving block is installed on the telescopic ends of the plurality of second electric telescopic rods.

[0014] Optionally, a cleaning pad is installed on the outer wall of the same side of the plurality of moving blocks and the rotating rod, and a first rotating block is rotatably installed on one end of the plurality of moving blocks away from the second electric telescopic rod.

[0015] Optionally, one end of each of the first rotating blocks away from the moving block is rotatably mounted with a second rotating block via a second rotating shaft, a rectangular groove is formed on one side outer wall of each of the second rotating blocks, and a hair dryer head is mounted inside each of the rectangular grooves.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the present invention, when multiple installation boxes need to be spliced ​​and assembled, after ensuring that the plug-in blocks and sleeve plates on the back of the two installation boxes are plugged in and adapted, the two adjacent installation boxes can be quickly connected and fixed with the help of the connecting mechanism provided on the back of the multiple installation boxes, so that the staff can assemble the multiple installation boxes without the help of tools and connectors, which reduces the workload of the staff and improves the efficiency of assembling the multiple installation boxes.

[0018] 2. In the invention, after the multiple installation boxes are spliced ​​and assembled, the first electric telescopic rod is controlled to drive the round block and multiple rotating rods and other components to move outward from the inside of the storage slot. As the driving motor drives the multiple rotating rods and the cleaning pad arranged on the outer wall of one side of the moving block to rotate, the cleaning pad is in friction contact with the outer wall of one side of the multiple magnetic blocks, which can automatically clean the dirt attached to the outer wall of one side of the multiple magnetic blocks, so as to facilitate the subsequent magnetic fixation with the LED display screen.

[0019] 3. In the present invention, after a plurality of LED screens are sequentially installed on the front faces of the corresponding installation boxes, if the LED screens are found to be misaligned after installation, the first and second electromagnets on the outer walls of the round block and the plurality of rotating rods can be energized to generate magnetism, so that the first electromagnet and the plurality of second electromagnets are magnetically fixed to the back of the LED screen, and then the telescopic end of the first electric telescopic rod inside the corresponding installation box can be directly controlled to extend, thereby pushing the LED screen to move away from the installation box, and the LED screen is magnetically fixed with the help of the first electromagnet and the plurality of second electromagnets, and the LED screen fixed by the magnetism is driven by a driving motor to rotate and adjust together, and the LED screen with misalignment can be rotated to the correct position, without the need for manual disassembly and replacement of the installed LED screen, thereby improving the efficiency of disassembly and assembly of the LED screen.

[0020] 4. In the present invention, if during the power-on inspection of multiple LED display screens, a small number of LED display screens are found to have quality problems such as abnormal display, the back of the LED display screen can be magnetically fixed to the first electromagnet and multiple second electromagnets, and then the corresponding telescopic end of the first electric telescopic rod can be extended to push the LED display screen to move a distance away from the installation box, so that the LED display screen with quality problems is in a raised state on the front of the multiple installation boxes, which is convenient for the staff to quickly identify the LED display screen with quality problems and quickly disassemble and replace it later, further improving the efficiency of LED display screen inspection and disassembly, and providing convenience for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of a die-cast box body of an LED combination screen that is easy to splice and assemble, as proposed by the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure on the back of one of the installation boxes;

[0024] Figure 3 It is a structural schematic diagram of the connecting mechanism in the present invention;

[0025] Figure 4 This is a structural schematic diagram of the front side of one of the installation boxes in the present invention;

[0026] Figure 5 for Figure 4 The schematic diagram of the structure in which the cleaning mechanism is removed;

[0027] Figure 6 for Figure 5 The structural diagram of the fixed frame is removed;

[0028] Figure 7 It is a structural schematic diagram of the fixing frame in the present invention;

[0029] Figure 8 It is a structural schematic diagram of the cleaning mechanism in the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure in which the round block is separated from a plurality of electric slide blocks in the present invention;

[0031] Fig.10 It is a schematic diagram of the structure of one of the electric sliders and the rotating rod in the present invention;

[0032] Fig.11 It is a structural cross-sectional view of one of the second rotating blocks in the present invention.

[0033] In the figure: 1. installation box; 2. installation base; 3. plug-in block; 4. sleeve plate; 5. fixing plate; 6. plug-in rod; 7. slot; 8. double-headed screw; 9. rotating part; 10. sliding block; 11. fixing frame; 12. magnet block; 13. round block; 14. rotating rod; 15. first electric telescopic rod; 16. storage slot; 17. connecting plate; 18. shielding curtain; 19. driving motor; 20. second electric telescopic rod; 21. moving block; 22. first rotating block; 23. second rotating block; 24. electric slider; 25. circular slot; 26. first electromagnet; 27. second electromagnet; 28. cleaning pad; 29. ​​rectangular slot; 30. hair dryer. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0035] Reference Figure 1-Figure 11A die-cast box body of an LED combination screen that is easy to splice and assemble comprises a plurality of installation boxes 1, four corners of the back of the plurality of installation boxes 1 are all installed with installation seats 2, the plurality of installation boxes 1 are all spliced ​​and assembled by a connecting mechanism arranged on the back, a fixing frame 11 is installed inside the plurality of installation boxes 1, a plurality of magnet blocks 12 for magnetically fixing to the back of the LED display screen are installed on the outer wall of the fixing frame 11 on one side close to the front of the installation box 1, a storage groove 16 is provided inside the fixing frame 11, a shielding mechanism for blocking the front of the installation box 1 is installed inside the storage groove 16, and a cleaning mechanism for assisting in cleaning the surfaces of the plurality of magnet blocks 12 is also arranged inside the storage groove 16.

[0036] As a technical optimization solution of the present invention, the connection mechanism includes two sets of plates 4 and two sets of plug blocks 3 arranged on the back of the installation box 1. The ends of the two sets of plug blocks 3 away from the installation box 1 are adapted to the sockets arranged inside the plates 4. The ends of the two sets of plug blocks 3 away from the installation box 1 are provided with slots 7. One of the installation boxes 1 can insert the two plug blocks 3 on the right end of the back into the two sets of plates 4 on the left side of the back of the other installation box 1, and at the same time, the two sets of plates 4 on the lower side of the back of one of the installation boxes 1 are mounted on the surfaces of the two plug blocks 3 on the top of the lower installation box 1, so that multiple installation boxes 1 can be connected as shown in FIG. Figure 1 The state shown is used for rapid connection and fixation, thereby improving the efficiency of mutually splicing and assembling multiple installation boxes 1.

[0037] As a technical optimization solution of the present invention, a fixed plate 5 is installed at the back of the installation box 1 near the two sets of cover plates 4, and a slide groove is opened inside the two fixed plates 5. A double-headed screw 8 is installed inside the slide groove, and two sliding blocks 10 are installed on the outer walls of the two double-headed screws 8. When the double-headed screw 8 rotates in the slide groove inside the fixed plate 5, it can drive the two sliding blocks 10 to move towards or away from each other.

[0038] As a technical optimization solution of the present invention, the outer wall of the side of the two sliding blocks 10 that are away from each other is installed with an insertion rod 6 that is compatible with the slot 7, and one end of the two double-headed screws 8 passes through the fixed plate 5 and is connected to the rotating part 9. By driving the rotating part 9 to rotate outside the fixed plate 5, the double-headed screw 8 is driven to rotate synchronously, so that the two sliding blocks 10 can drive the insertion rod 6 to move synchronously while moving. After the two insertion blocks 3 on the back of the installation box 1 are inserted into the inside of the sleeve plate 4 on the back of the other installation box 1, the two sliding blocks 10 move in the direction away from each other, driving the two insertion rods 6 to be inserted into the corresponding slots 7, so that the insertion blocks 3 can be limited and fixed, and the two installation boxes 1 can be quickly connected and fixed.

[0039] As a technical optimization solution of the present invention, the shielding mechanism includes a plurality of retractable shielding curtains 18, which are all installed on one inner wall of the installation box 1, and the ends of the plurality of shielding curtains 18 away from the installation box 1 are all located inside the storage slot 16, and the ends of the plurality of shielding curtains 18 away from the installation box 1 are all installed with connecting plates 17. The connecting plates 17 are made of metal materials that can be adsorbed by magnets, which is convenient for subsequent deployment and use.

[0040] As a technical optimization solution of the present invention, the cleaning mechanism includes a drive motor 19, which is installed in the center of the installation box 1. The output end of the drive motor 19 is installed with a first electric telescopic rod 15, and the telescopic end of the first electric telescopic rod 15 is installed with a round block 13. The outer wall of the round block 13 away from the first electric telescopic rod 15 is installed with a first electromagnet 26. The drive motor 19 can drive the first electric telescopic rod 15 and the round block 13 to rotate synchronously.

[0041] As a technical optimization solution of the present invention, a circular groove 25 is provided on the outer wall of the circular block 13, and a plurality of electric sliders 24 are installed inside the circular groove 25. The ends of the plurality of electric sliders 24 away from the circular groove 25 are all rotatably installed with a rotating rod 14 through a first rotating shaft. The plurality of electric sliders 24 can move in a quarter circle inside the circular groove 25, driving the plurality of rotating rods 14 to move and adjust; a first driving device is preset inside the plurality of electric sliders 24, and the output ends of the plurality of first driving devices are connected to the corresponding first rotating shafts, so as to drive the plurality of rotating rods 14 to rotate and adjust.

[0042] As a technical optimization solution of the present invention, two second electromagnets 27 are installed on one side outer wall of the plurality of rotating rods 14, and a second electric telescopic rod 20 is installed on one end of the plurality of rotating rods 14 away from the electric slider 24, and a moving block 21 is installed on the telescopic ends of the plurality of second electric telescopic rods 20. The telescopic ends of the plurality of second electric telescopic rods 20 are telescoped, thereby driving the moving block 21 to move and adjust.

[0043] As a technical optimization scheme of the present invention, a cleaning pad 28 is installed on the outer wall of the same side of the plurality of moving blocks 21 as the rotating rod 14, and a first rotating block 22 is rotatably installed on the end of the plurality of moving blocks 21 away from the second electric telescopic rod 20. By controlling the extension of the telescopic end of the first electric telescopic rod 15, the round block 13 and the plurality of rotating rods 14 and other components are driven to move together in a direction away from the storage slot 16, until the outer wall of the side with the cleaning pad 28 of the plurality of rotating rods 14 moves to a position abutting against the outer wall of the plurality of magnet blocks 12, at which time the driving motor 19 drives the round block 13 and the plurality of rotating rods 14 to rotate together, which can drive the cleaning pad 28 on one side of the plurality of moving blocks 21 and the rotating rod 14 to clean the outer wall of the plurality of magnet blocks 12, so as to facilitate the subsequent magnetic fixation of the magnet block 12 to the LED display screen; a second driving device is preset on the outer wall of one side of the plurality of moving blocks 21, and the output ends of the plurality of second driving devices are respectively connected to the rotating parts of the corresponding first rotating blocks 22, so as to drive the plurality of first rotating blocks 22 to rotate and adjust.

[0044] As a technical optimization solution of the present invention, the ends of the multiple first rotating blocks 22 away from the moving block 21 are all rotatably mounted with the second rotating blocks 23 through the second rotating shaft, and the outer walls of one side of the multiple second rotating blocks 23 are all provided with rectangular grooves 29, and the interiors of the multiple rectangular grooves 29 are all installed with blower heads 30. A third driving device is preset inside the multiple first rotating blocks 22, and the output ends of the multiple third driving devices are respectively connected to the corresponding second rotating shafts, so as to drive the multiple second rotating blocks 23 to rotate and adjust; an air outlet device is preset inside the installation box 1, and the output end of the air outlet device is connected to the blower head 30 through a hose, so as to enable the multiple blower heads 30 to discharge wind force outward.

[0045] In the present invention, when the user uses the device, Figure 1 As shown, when multiple installation boxes 1 need to be spliced ​​and assembled, the two plug-in blocks 3 on the right end of the back side of one of the installation boxes 1 can be inserted into the two sleeve plates 4 on the left side of the back side of another installation box 1, and at the same time, the two sleeve plates 4 on the lower side of the back side of the installation box 1 can be sleeved on the outside of the two plug-in blocks 3 on the top of the back side of the installation box 1 below, and then the rotating part 9 is driven to rotate on the outside of the fixed plate 5 to drive the double-headed screw 8 to rotate synchronously, so that the two sliding blocks 10 move in directions away from each other, driving the two plug-in rods 6 to be inserted into the corresponding slots 7 inside the plug-in blocks 3, so that the plug-in blocks 3 can be limited and fixed, so that multiple installation boxes 1 can be connected as shown. Figure 1 The state shown is quickly connected and fixed to improve the efficiency of splicing and assembling multiple installation boxes 1; then the mounting base 2 on the back of the spliced ​​multiple installation boxes 1 is connected to the bracket pre-installed on the wall surface, and finally the multiple LED display screens are installed on the front of the multiple corresponding installation boxes 1 in turn.

[0046] After the multiple installation boxes 1 are spliced, assembled and installed on the preset bracket surface as mentioned above, the telescopic end of the first electric telescopic rod 15 can be controlled to extend, driving the round block 13 and multiple rotating rods 14 and other components to move outward from the inside of the storage groove 16, until the multiple rotating rods 14 and the moving block 21 move to a position flush with the outer walls of the multiple magnetic blocks 12. As the driving motor 19 drives the first electric telescopic rod 15 and the round block 13 to rotate synchronously, the cleaning pad 28 set on the outer wall of one side of the multiple rotating rods 14 and the moving block 21 is driven to rotate and rub against the outer wall of one side of the multiple magnetic blocks 12, which can automatically clean the dirt attached to the outer wall of one side of the multiple magnetic blocks 12, so as to facilitate the subsequent magnetic fixation with the LED display screen.

[0047] After the multiple LED display screens are sequentially installed on the front side of the corresponding installation box 1, it is necessary to conduct a power-on test on the multiple LED display screens that have been installed to detect whether there is any misalignment in the position of the installed LED display screens. If it is found that the installed LED display screens are misaligned, the first electromagnet 26 and the second electromagnet 27 on the outer wall of the round block 13 and the multiple rotating rods 14 can be energized to generate magnetism, so that the first electromagnet 26 and the multiple second electromagnets 27 are magnetically fixed to the back side of the LED display screen. Then, the telescopic end of the first electric telescopic rod 15 inside the corresponding installation box 1 can be directly controlled to extend, thereby pushing the LED display screen to move in a direction away from the installation box 1, and the LED display screen is magnetically fixed by means of the first electromagnet 26 and the multiple second electromagnets 27 to prevent it from falling directly downward. The round block 13 and the magnetically fixed LED display screen are driven by the driving motor 19 to rotate and adjust together, and the LED display screen with misalignment can be rotated to the correct position. There is no need to manually disassemble and replace the installed LED display screen, thereby improving the disassembly and assembly efficiency of the LED display screen.

[0048] At the same time, if during the power-on inspection of multiple LED display screens, a small number of LED display screens are found to have quality problems with abnormal display, the back of the LED display screen can be magnetically fixed to the first electromagnet 26 and multiple second electromagnets 27, and the corresponding telescopic end of the first electric telescopic rod 15 can be extended to push the LED display screen to move a distance away from the installation box 1, so that the LED display screen with quality problems is in a raised state on the front of the multiple installation boxes 1, which is convenient for the staff to quickly identify the LED display screen with quality problems and quickly disassemble and replace it later, further improving the efficiency of LED display screen inspection and disassembly, and providing convenience for the staff.

[0049] After the LED display screen with quality problems is removed from the front of the installation box 1, the front of the installation box 1 is exposed, and components such as the power cord arranged inside the installation box 1 will extend outward from the inside of the installation box 1, making it easy for dirt to adhere to its interface, affecting the subsequent stable connection with the new LED display screen, and mice and insects from the outside can also easily enter the installation box 1 with the exposed front, which has an adverse effect on the normal use of the subsequent LED display screen. At this time, the telescopic end of the first electric telescopic rod 15 can be controlled to extend, driving the round block 13 and multiple rotating rods 14 and other components to move outward in a direction away from the installation box 1, and then controlling the multiple rotating rods 14 to rotate 180 degrees with the help of the rotation of the first rotating shaft, thereby driving the two second electromagnets 27 arranged on the outer wall of one side of the multiple rotating rods 14 to rotate to a position close to the installation box 1, and then controlling the telescopic end of the first electric telescopic rod 15 to retract and return to its original position, and controlling the multiple second electromagnets 27 to be energized to generate magnetism. After the multiple rotating rods 14 move and reset in the direction close to the installation box 1, the two corresponding second electromagnets 27 are magnetically fixed to the connecting plates 17 that are in contact with them respectively, and then the telescopic end of the first electric telescopic rod 15 is controlled to extend again, driving the round block 13 and the multiple rotating rods 14 to move in the direction away from the installation box 1, and driving the multiple shielding curtains 18 to stretch and unfold outward from the inside of the storage groove 16. At this time, after the multiple rotating rods 14 move to a position away from the installation box 1, the multiple electric sliders 24 inside the circular groove 25 can be controlled to move in a quarter circle, thereby driving the multiple shielding curtains 18 in the unfolded state to bend on the front side of the installation box 1, and cooperate with each other to block and block the front side of the installation box 1, so as to prevent the power cord and other components inside the installation box 1 from extending outward, and small animals and insects from the outside from entering the interior of the installation box 1, which will affect the subsequent use of the LED display screen, and ensure that the LED display screen installed on the front side of the installation box 1 can be used normally.

[0050] During the use of the LED display screen, since its front side is exposed, foreign debris will inevitably adhere to the front side of the LED display screen, thereby affecting the display quality of the subsequent LED display screen. However, LED display screens are usually used in a higher position, which makes it inconvenient for staff to clean the debris attached to its surface. At this time, the first electromagnet 26 and the plurality of second electromagnets 27 can be controlled to be energized to generate magnetism, so that they can be magnetically attracted to the back side of the LED display screen. Then, the telescopic end of the first electric telescopic rod 15 is controlled to extend, driving the round block 13 and the plurality of rotating rods 14 to push the LED display screen on the front side of the installation box 1 outward, and moving the plurality of rotating rods 14 and other components out from the inside of the installation box 1. At this time, the plurality of second electromagnets 27 can be controlled to be de-energized, so that the LED display screen is only fixed by the magnetic attraction of the first electromagnet 26. The plurality of electric sliders 24 can be controlled to move inside the circular groove 25, driving the plurality of rotating rods 14 and other components to rotate to the positions corresponding to the rectangular grooves. The four sides of the LED display screen are positioned perpendicular to each other, so that one end of the multiple moving blocks 21 away from the second electric telescopic rod 20 is respectively flush with the four sides of the LED display screen, and then the multiple first rotating blocks 22 can be controlled to rotate 90 degrees inside the corresponding moving blocks 21 toward the direction close to the LED display screen, thereby driving the multiple first rotating blocks 22 to abut against the four sides of the LED display screen respectively, and the multiple second rotating blocks 23 are all located in front of the LED display screen. Since the blower heads 30 installed inside the multiple second rotating blocks 23 are all inclined, the multiple blower heads 30 can be controlled to discharge wind outward in turn and blow toward the front of the LED display screen, and the second rotating block 23 is driven to rotate and adjust with the help of the second rotating shaft, and the blowing angles of the multiple blower heads 30 are driven to rotate and adjust, so as to facilitate the comprehensive automatic cleaning of dirt and dust attached to the surface of the LED display screen, without the need for manual cleaning that takes a lot of time, thereby ensuring that the display quality of the LED display screen is not affected.

[0051] Furthermore, when the multiple blow heads 30 clean the front of the LED display screen, since the multiple first rotating blocks 22 rotate to abut against the four side surfaces of the LED display screen, the multiple second electric telescopic rods 20 can be retracted to drive the multiple first rotating blocks 22 to tightly abut against the four side surfaces of the LED display screen, thereby achieving the effect of auxiliary clamping and fixing the LED display screen, ensuring that the LED display screen is relatively stable during the process of the multiple blow heads 30 cleaning the front of the LED display screen, thereby avoiding damage to the LED display screen.

[0052] During the use of the LED display screen, since the plurality of first rotating blocks 22 and the second rotating blocks 23 are all received in the receiving groove 16, and Figure 4As shown, the rectangular grooves 29 of the multiple second rotating blocks 23 are all facing the front of the installation box 1, so that after the LED display screen is used for a long time, the wind discharged by the multiple blower heads 30 can be used to dissipate the heat of the LED display screen, which is convenient for the LED display screen to maintain good stability during long-term use and can also indirectly improve the service life of the LED display screen.

[0053] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A die-cast box for an LED combination screen that is easy to assemble and splice, comprising a plurality of installation boxes (1), characterized in that: The four corners of the back of the plurality of installation boxes (1) are all provided with installation seats (2), the plurality of installation boxes (1) are all spliced ​​and assembled by means of a connecting mechanism provided on the back, the interior of the plurality of installation boxes (1) is provided with a fixing frame (11), the outer wall of the fixing frame (11) close to the front of the installation box (1) is provided with a plurality of magnet blocks (12) for magnetically fixing to the back of the LED display screen, a storage groove (16) is provided inside the fixing frame (11), a shielding mechanism for blocking the front of the installation box (1) is provided inside the storage groove (16), and a cleaning mechanism for assisting in cleaning the surfaces of the plurality of magnet blocks (12) is also provided inside the storage groove (16); The cleaning mechanism comprises a drive motor (19), the drive motor (19) being mounted at a central position inside the mounting box (1), a first electric telescopic rod (15) being mounted at the output end of the drive motor (19), a round block (13) being mounted at the telescopic end of the first electric telescopic rod (15), and a first electromagnet (26) being mounted on an outer wall of the round block (13) on a side away from the first electric telescopic rod (15); The outer wall of the circular block (13) is provided with a circular groove (25), a plurality of electric sliders (24) are installed inside the circular groove (25), and a rotating rod (14) is rotatably installed at one end of the plurality of electric sliders (24) away from the circular groove (25) via a first rotating shaft; Two second electromagnets (27) are installed on one side outer wall of the plurality of rotating rods (14); a second electric telescopic rod (20) is installed on one end of the plurality of rotating rods (14) away from the electric slider (24); and a moving block (21) is installed on the telescopic end of the plurality of second electric telescopic rods (20); A cleaning pad (28) is installed on the outer wall of the same side of the plurality of moving blocks (21) as the rotating rod (14); and a first rotating block (22) is rotatably installed on one end of the plurality of moving blocks (21) away from the second electric telescopic rod (20); A second rotating block (23) is rotatably mounted on one end of each of the plurality of first rotating blocks (22) away from the moving block (21) via a second rotating shaft, a rectangular groove (29) is formed on one side outer wall of each of the plurality of second rotating blocks (23), and a blower head (30) is mounted inside each of the plurality of rectangular grooves (29).

2. The die-cast box of an LED combination screen that is easy to assemble and splice according to claim 1 is characterized in that: The connection mechanism comprises two sets of sleeves (4) and two sets of plug blocks (3) arranged on the back of the installation box (1); the ends of the two sets of plug blocks (3) away from the installation box (1) are adapted to the sockets arranged inside the sleeves (4); and the ends of the two sets of plug blocks (3) away from the installation box (1) are provided with slots (7).

3. The die-cast box of an LED combination screen that is easy to assemble and splice according to claim 2 is characterized in that: A fixing plate (5) is installed on the back of the installation box (1) near the two sets of sleeve plates (4), and a slide groove is provided inside the two fixing plates (5). A double-headed screw rod (8) is installed inside the slide groove, and two sliding blocks (10) are installed on the outer walls of the two double-headed screw rods (8).

4. The die-cast box of an LED combination screen that is easy to assemble and splice according to claim 3 is characterized in that: An insert rod (6) adapted to the slot (7) is installed on the outer walls of the two sliding blocks (10) on the sides away from each other, and one end of the two double-headed screws (8) passes through the fixing plate (5) and is connected to a rotating part (9).

5. The die-cast box of an LED combination screen that is easy to assemble and splice according to claim 1 is characterized in that: The shielding mechanism comprises a plurality of retractable shielding curtains (18), the plurality of shielding curtains (18) being mounted on an inner wall of one side of the installation box (1), and the ends of the plurality of shielding curtains (18) away from the installation box (1) being located inside the storage groove (16), and the ends of the plurality of shielding curtains (18) away from the installation box (1) being mounted with connecting plates (17).

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