Large screen system capable of modular fast splicing and lifting and screen installation method

Abstract

The invention provides a large screen system capable of modular fast splicing and lifting and a screen installation method. The large screen system comprises a suspension-point-free suspension module, adjacent suspension beams are quickly locked and fixed through child connecting ends and mother connecting ends, and the adjacent suspension beams are adjusted to be kept straight; a lifting mechanism controls the cross beam assembly to ascend and descend, and the lifting of the cross beam assembly controls the lifting of the lifting-point-free suspension module; and the screen module with the rigid main body is rigidly connected with the plurality of straight hanging beams of the hanging module without the hanging point in a tight fit manner. The large screen system can be moved and lifted in one device, screen sub-modules can be customized and combined according to needs, the large screen system can be disassembled to be conveniently transported and enter a building, and the large screen system can be stretched in the transverse direction and the vertical direction of the screen according to needs. And multiple functions of external lifting points or lifting trusses are not needed.

Description

Technical Field

[0001] The present invention relates to a modular, quickly assembled, liftable large-screen system and a screen installation method, belonging to the technical field of large-screen display equipment. Background Art

[0002] Large-screen systems are usually assembled from modular screen modules. They are suitable for indoor and outdoor advertising, stage performances, wedding celebrations, exhibitions, press releases, large conferences, sports competitions and other indoor and outdoor scenes. They are widely used due to their advantages such as fast assembly, free combination, convenient transportation and intelligent control.

[0003] The current categories of large-screen systems mainly include three types: first, a combination system of fixed brackets + assembly and disassembly of screen modules, in which the fixed brackets are first arranged on site, and then the screen modules are quickly spliced on the fixed brackets to obtain a large-screen system; second, an integrated mobile and liftable system, in which the large screen is arranged on a lifting device and moved directly to the site for use; third, a hoisting system, in which the hoisting truss is first installed on site or the on-site lifting points are used, and the hanging beams are installed based on the trusses or on-site lifting points, and the screen modules are quickly spliced on the hanging beams to obtain a large-screen system.

[0004] The above large-screen systems all have certain defects in scene application: the combination system of fixed bracket + installation and removal of screen modules is usually not movable, and the fixed bracket needs to be installed and the screen module needs to be installed and removed on site. The installation and removal efficiency is relatively low, and a longer installation time needs to be reserved; when the screen of the integrated mobile and liftable system is folded or folded, the overall size is still relatively large and the overall weight is also very heavy, which is very inconvenient during transportation, especially for high floors of buildings that cannot be entered by elevator and cannot pass through standard doors or passages. It is usually suitable for very open outdoor scenes and is very unfriendly to indoor use scenarios; the hoisting system relies on large hoisting equipment to hoist and install the truss, which requires a very large installation space on site. It is not suitable for use in places where there is no installation space or no hanging points or the hanging points are very expensive.

[0005] Therefore, the existing large-screen systems that can usually be modularly spliced cannot be lifted or lowered because their brackets are fixed and cannot be lifted or lowered to achieve modular splicing. The so-called modular splicing does not mean that the screen of the integrated mobile liftable system has no modules, but that the screen of the integrated liftable system has modules, but it is impossible to achieve many module splicing combinations and flexible customization of screen modules like the first type of fixed bracket + screen module. For example, in scenarios where fast installation and customized installation are required in high-rise buildings, the first type of large-screen system cannot meet the requirements of fast installation due to the need for fixed brackets. The second type of integrated mobile liftable system cannot enter because the screen is too large, and customized installation cannot be achieved. There is currently no good solution for this type of scenario, and it is urgently needed to fill the market gap. Summary of the Invention

[0006] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a modular, quick-assembled, liftable large-screen system and a screen installation method. According to an embodiment of the present invention, a first solution is provided: a modular, quick-assembled, liftable large-screen system, comprising: The suspension module without hanging points includes multiple hanging beams. Each hanging beam includes a sub-connection end and a mother-connection end. Adjacent hanging beams are fixed and adjusted to maintain straightness through quick locks between the sub-connection ends and the mother-connection ends. The bottom of the hanging beam can be quickly spliced with modular screen sub-modules. The elevator module includes a lifting mechanism and a beam assembly. The lifting mechanism controls the lifting of the beam assembly. The beam assembly is connected to the suspension module without hanging points. The lifting of the beam assembly controls the lifting of the suspension module without hanging points. The screen module includes multiple screen sub-modules, which include a base with a rigid structure and a display screen fixed on the base. The base includes left and right quick-disassembly structures and upper and lower quick-disassembly structures so that the screen sub-modules can be quickly combined in a modular manner. All the bases of the screen modules are connected through the left and right quick-disassembly structures and the upper and lower quick-disassembly structures to form a rigid body. A tightly fitting rigid connection is formed between the screen module with a rigid body and the multiple straight hanging beams of the suspension module without hanging points.

[0007] Furthermore, each hanging beam bottom corresponds to at least one quick-assembled screen sub-module sequence; or, multiple hanging beam bottoms correspond to one quick-assembled screen sub-module sequence; or, multiple hanging beam bottoms correspond to multiple quick-assembled screen sub-module sequences.

[0008] Furthermore, a sub-connecting end and a female connecting end are respectively provided at both ends of the suspension beam, and a mortise and tenon connection structure of a connecting head and a connecting groove is provided between the sub-connecting end and the female connecting end. The suspension beam also includes a Y-direction fixing member, and the accurate connection of adjacent suspension beams in three directions of X-axis, Y-axis and Z-axis is ensured through the connecting head, connecting groove and Y-direction fixing member. The X-axis is the long axis direction of the suspension module without hanging points, the Z-axis is the vertical direction of the ground surface, and the Y-axis is the vertical direction of the XZ plane.

[0009] Furthermore, the suspension beam further includes a locking member, which can further tightly lock the mortise and tenon connection structure and achieve straightness between adjacent suspension beams.

[0010] Furthermore, the lengths of the suspension beams may be consistent or inconsistent, and a combination of inconsistent suspension beams may match combination requirements of different lengths.

[0011] Furthermore, the bottom of the hanging beam is provided with an upper and lower quick-detachment lower structure that is the same as or similar to the upper and lower quick-detachment structure of the screen submodule, and the hanging beam is detachably connected to the upper and lower quick-detachment upper structure of the screen submodule through the upper and lower quick-detachment lower structure.

[0012] Furthermore, the lifting mechanism includes: a multi-stage telescopic mechanism, a screw lifting structure, a scissor-type lifting structure, a gear rack lifting structure, a chain / steel cable lifting structure, and a pneumatic / hydraulic lifting structure.

[0013] Furthermore, the multi-stage telescopic mechanism includes a hydraulic power station, a first-stage casing, an N-stage casing and a bottom support structure; The first-level casing is connected to the bottom support structure, the end casing of the N-level casing is connected to the crossbeam assembly, and the hydraulic power station controls the telescopic position of the N-level casing and the first-level casing; The bottom support structure is used to support the large-screen system, the mobile large-screen system and the counterweight large-screen system. The bottom support structure includes telescopic legs, support feet, and universal support wheels. The telescopic legs are telescopically adjustable at least in the Y-axis direction. The support feet and universal support wheels are arranged on the legs and support the bottom surface. The universal support wheels can also move the installed or disassembled large-screen system.

[0014] The bottom supporting structure further includes at least one screen supporting rod, which can connect the bottom supporting structure and the screen module to prevent the screen module from moving or swinging in the Y-axis direction.

[0015] The crossbeam assembly includes a T-shaped crossbeam and a crossbeam fixing piece. The T-shaped crossbeam is fixedly connected to the support beam in the suspension beam through the widened beam at the end portion through the crossbeam fixing piece.

[0016] The beam assembly is further provided with a hanging ring on the T-shaped beam, and the hanging ring is provided at the far end of the widened beam. A counterweight block is provided on the hanging ring to achieve balanced counterweighting of the screen module.

[0017] The elevator module also includes a lifting drive device, which includes a multi-stage hydraulic cylinder. The multi-stage hydraulic cylinder is telescopic to drive the N of the multi-stage telescopic mechanism and the telescopic movement of the sleeve.

[0018] It also includes a lifting control module, which can control the operation of the lifting drive device to achieve the lifting speed and lifting height of the screen module.

[0019] The crossbeam assembly also includes a drag chain lifting and wiring device, which includes a drag chain that can be moved up and down. The up and down movement of the drag chain will move the signal line and the power line up and down as a whole at one end to ensure that the connection stability of the signal line and the power line with the screen module is not affected when the elevator module moves up and down.

[0020] According to the embodiment of the present invention, using the modular quick-assembly and liftable large-screen system in the first solution provided by the present invention, a second solution is provided: A screen installation method for a modular, quick-assembled, liftable large-screen system includes the following steps: S1: Move the elevator module of the large screen system to the target site through the rolling of the universal support wheels; S2: unfold the bottom support structure of the elevator module to form a stable support; S3: Control the elevator module to raise the beam assembly to the installation height, and assemble multiple hanging beams into a suspension module without hanging points according to requirements; S4: Quickly splice the screen submodules up and down at the bottom of each hanging beam at the installation height, and quickly splice each adjacent screen submodule left and right. Install the power and signal cables for each screen submodule, and increase the counterweight on the lifting ring to offset the increase in screen weight. S5: Control the elevator module to raise the crossbeam assembly to the installation height + M, where M is the height of the screen submodule. At this height, quickly splice the bottom of each screen submodule up and down, and quickly splice each adjacent screen submodule left and right. Install the power and signal cables of each screen submodule, and increase the counterweight on the lifting ring to offset the increase in screen weight. S6: Repeat the process of the elevator module stepping up one M height each time and splicing a row of screen submodules until all screen modules are spliced, power cables and signal cables are installed, and the screen modules are counterweighted; S7: Connect the screen module to the bottom support structure through the screen support rod.

[0021] Compared with the existing technology, the technical solution provided by this application has the following unique beneficial effects: 1. This solution provides a modular, quick-assembly, and liftable large-screen system. It combines the following significant technical advantages: the large-screen system is movable and liftable, the screen sub-modules can be customized and combined as needed, the large-screen system can be disassembled for easy transportation and access to buildings, and the screen can be extended in both horizontal and vertical directions as needed, without the need for external hanging points or lifting trusses. It addresses the defects of various existing large-screen systems and improves the flexibility, convenience, safety, and economy of large-screen systems during rental.

[0022] 2. The pointless suspension module adopts a quick-locking beam combination structure, which makes the pointless suspension module not restricted by the external installation site and can be customized and quickly spliced together as needed. The beam combination is easy to operate and has a firm connection, which improves the assembly efficiency of the large-screen system.

[0023] 3. The elevator module achieves precise control of the screen's lifting and lowering, making it easy to implement automated control. The elevator's control of the screen's lifting and lowering is firstly reflected in the lifting and lowering of the entire screen. Secondly, when installing or removing multiple screen sub-modules of the screen module, the lifting beam assembly ensures that operators can always perform safe, fast, and labor-saving installation and removal operations at the operating height.

[0024] 4. The screen module utilizes both top and bottom quick-release structures, solving the challenges of rapid, collision-free assembly of screen submodules and seamless splicing. Specifically, the screen module is assembled through the base to form a rigid body. This rigid body is then assembled with the rigid body of the attached pointless suspension module via top and bottom quick-release structures between the multiple screen submodules and the suspension beams, forming a new rigid entity. This solves the technical challenges of seamless connection between the screen module and the pointless suspension module, as well as the problem of deformation and bending of the long arms of the pointless suspension module under load.

[0025] 5. This solution provides a screen installation method for a modular, quick-assembly, and liftable large-screen system. Under the premise of ensuring the overall installation stability and safety of the large-screen system, the installer can always keep the working space at the most comfortable installation height by lifting the hanging beam. After completing the splicing of a row of screen sub-modules, the elevator module is operated to raise the beam assembly to the height of the box of a screen sub-module, and the operating space of the next row of screen sub-modules to be installed is once again placed at the most comfortable installation height for the installer. This reciprocating cycle continues until the screen installation is completed, avoiding the fatigue and safety hazards caused by long-term and frequent cantilever lifting and high-height operations of the installer, and also realizing the optimal implementation solution for completing large-screen installation by a single person. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] in: Figure 1 Schematic diagram of the overall structure of a modular, quick-assembled, liftable large-screen system in one embodiment (without screen mounting); Figure 2 Schematic diagram of the overall structure of a modular, quick-assembled, liftable large-screen system (hanging screen) in one embodiment; Figure 3A schematic diagram of the structure of a suspension module without hanging points of a modular, quick-assembled, liftable large-screen system in one embodiment; Figure 4 A schematic structural diagram of a suspension beam having no suspension points and a suspension module in one embodiment; Figure 5 Schematic diagram of the structure of the sub-connecting end and the female connecting end of the hanging beam in one embodiment; Figure 6 A schematic structural diagram of an elevator module of a modular, quick-assembled, liftable large-screen system in one embodiment; Figure 7 is a partial schematic diagram of an elevator module in one embodiment; Figure 8 Schematic diagram of a partial structure of a screen submodule of a screen module in one embodiment; Figure 9 The figure is a flowchart of a screen installation method for a modular, quick-assembled, liftable large-screen system in one embodiment.

[0028] Reference numerals: 10-no-hanging-point suspension module; 11-hanging beam; 111-sub-connector; 112-female connector; 1111-connection slot; 1112-Y-axis fixing piece; 1113-limiting platform; 1121-connector; 1122-locking piece; 20-lift module; 21-lift mechanism; 22-beam assembly; 211-level casing; 212-level N casing; 213-hydraulic power station; 214-telescopic legs; 215-support feet; 216-universal support wheels; 217-screen support rod; 221-beam fixings; 222-T-beam; 223-drag chain; 30 - screen module; 31 - screen submodule; 311 - display screen; 312 - base. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0030] This embodiment specifically describes a modular, quick-assembled, liftable large-screen system and a screen installation method. The technical problems solved by the large-screen system and the screen installation method are that the existing large-screen system has limitations when installed and used in different scenarios, resulting in the inability to achieve satisfactory results in all aspects. Specifically, the current categories of large-screen systems mainly include three categories: first, a combination system of fixed brackets + assembly and disassembly of screen modules 30, first arranging the fixed brackets on site, and then quickly splicing the screen modules 30 on the fixed brackets to obtain a large-screen system; second, an integrated mobile liftable system, arranging the large screen on a lifting device and moving it directly to the site for use; third, a hoisting system, first installing the hoisting truss on site or using an on-site lifting point, installing the hanging beam based on the truss or on-site lifting point, and quickly splicing the screen module 30 on the hanging beam to obtain a large-screen system.

[0031] The above large-screen systems all have certain defects in scene applications: the combination system of fixed bracket + installation and removal of screen module 30 is usually not movable, and the fixed bracket needs to be installed on site and the screen module 30 needs to be installed and removed. The installation and removal efficiency is relatively low, and a longer installation time needs to be reserved; when the screen of the integrated mobile and liftable system is folded or folded, the overall size is still relatively large and the overall weight is also heavy, which is very inconvenient during transportation, especially for high-rise buildings that cannot be entered by elevator and cannot pass through standard doors or passages. It is usually suitable for very open outdoor scenes and is very unfriendly to indoor use scenarios; the hoisting system relies on large hoisting equipment to hoist and install the truss, and a very large installation space is required on site. It is not suitable for use in places where there is no installation space or no hanging points or the hanging points are very expensive.

[0032] Therefore, the existing large-screen system that can usually be modularly spliced cannot be lifted or lowered because its bracket is fixed and cannot be lifted or lowered to achieve modular splicing. The so-called modular splicing does not mean that the screen of the integrated mobile liftable system has no modules, but that the screen of the integrated liftable system has modules, but cannot achieve the screen module 30 with many modular splicing combinations and flexible customization like the first type of fixed bracket + screen module 30. For example, in scenarios where fast installation and customized installation are required in high-rise buildings, the first type of large-screen system cannot meet the requirement of fast installation due to the need for fixed brackets. The second type of integrated mobile liftable system cannot enter because the screen is too large, and customized installation cannot be achieved.

[0033] In order to solve the above technical problems, this embodiment provides a modular quick-assembly and liftable large screen system, such as Figure 1 、 Figure 2 Shown, including: The suspension module 10 without a suspension point includes a plurality of suspension beams, each of which includes a sub-connection end 111 and a female connection end 112. Adjacent suspension beams are fixed and adjusted to maintain a straight line through the sub-connection ends 111 and the female connection ends 112. The bottom of the suspension beam can be quickly spliced with a modular screen sub-module 31. The elevator module 20 includes a lifting mechanism 21 and a beam assembly 22. The lifting mechanism 21 controls the lifting of the beam assembly 22. The beam assembly 22 is connected to the suspension module 10 without a suspension point. The lifting of the beam assembly 22 controls the lifting of the suspension module 10 without a suspension point. The screen module 30 includes a plurality of screen submodules 31. The screen submodule 31 includes a base 312 with a rigid structure and a display screen 311 fixed on the base 312. Figure 8 As shown, the base 312 includes left and right quick-detach structures and upper and lower quick-detach structures so that the screen sub-module 31 can be quickly assembled in a modular manner. All the bases 312 of the screen module 30 are connected through the left and right quick-detach structures and the upper and lower quick-detach structures to form a rigid body. A tightly fitting rigid connection is formed between the screen module 30 with the rigid body and the multiple straight hanging beams of the suspension module 10 without hanging points.

[0034] Typically, the large screen system also includes a control system for controlling the lifting and lowering of the elevator module 20, the operation of the screen module 30, and realizing other remote control and monitoring functions.

[0035] The suspension module 10 without hanging points is a new assembly structure for large-screen systems. Compared with large screens with traditional hoisting systems, the suspension module 10 without hanging points does not require any external hanging points. Therefore, it does not rely on large-scale hoisting equipment to install trusses or fix the hanging beams to high-altitude hanging point positions. It not only saves the cost of hoisting equipment and the time cost of hoisting installation, but also can expand the suspension form of large-screen systems into more installation spaces, such as conference rooms, stages and other scenes inside high-rise buildings such as buildings.

[0036] In addition, compared with the trusses or lifting beams of the traditional lifting system, the suspension module 10 without hanging points of the present application adopts a plurality of lifting beams that can be modularly combined, that is, the lifting beams can be connected with the trusses or lifting beams of the traditional lifting system by means of a quick lock of the sub-connection end 111 and the mother connection end 112. This form of lifting combination makes the large-sized trusses subdivided into a plurality of small lifting beam structures, and the length of the lifting beams can be adjusted according to customer needs. The lifting beams with smaller sizes can be disassembled and assembled, and are convenient for transportation in the disassembled form, for example, entering high-rise buildings such as buildings The elevators built, standard cargo boxes for transportation, and small and medium-sized transport vehicles have greatly improved the transportation convenience of the large-screen system. In particular, the hanging beam is not only smaller in size, but more importantly, the hanging beam adopts the same quick-assembly structure as the screen sub-module 31 (or basically the same, to ensure consistent operation), so that the disassembly and assembly operations between the hanging beam and the screen sub-module 31 below are consistent with the disassembly and assembly operations between the screen sub-modules 31, which not only improves the disassembly and assembly efficiency, but also greatly reduces the probability of misoperation by operators due to the consistent disassembly and assembly structure and disassembly and assembly operations.

[0037] The elevator module 20 is the core innovation of the large-screen system of this application. Its basic function is to control the up and down displacement of the screen module 30 of the large-screen system. The elevator module 20 can adjust the up and down displacement of the screen module 30 of the large-screen system. From the overall perspective, it can adjust the up and down displacement of the assembled screen module 30 of the large-screen system to adjust the height of the large-screen system to adapt to the audience's viewing angle. From the perspective of disassembly and assembly, during the disassembly and assembly process, the elevator module 20 can be used to adjust the operating space of the operator to always be at the most comfortable height.

[0038] In addition, the elevator module 20 also provides a support point for the suspension module 10 without a suspension point, and controls the up and down displacement of the suspension module 10 without a suspension point through the support point, thereby controlling the up and down displacement of the screen module 30.

[0039] The up-down and left-right quick-release assembly structure of the screen module 30 is similar to that of the prior art. However, there are also significant technological advances in the installation process. For example, when the screen module 30 is connected to the suspension beam, due to the very large overall weight of the screen module 30, it is easy to cause the far end of the long-rod suspension beam assembly to sag and deform. This phenomenon is not only present in the large-screen system of this application, but also in other hoisting modes. The existing solution is to increase the size and structural strength of load-bearing components such as trusses. The suspension beam structure size and structural hardness of this application are also made larger, but it is still difficult to balance the straightness between the suspension beams and the seamless connection between the suspension beams and the screen submodule 31.

[0040] In order to solve this problem, the present application combines the structural design and installation method of the large-screen system to achieve a perfect solution to the problem. From a structural point of view, the cooperation between the sub-connection end 111 and the female connection end 112 and the locking member 1122 are used to realize the straight connection of multiple hanging beams. The screen sub-modules 31 are seamlessly connected through the quick-disassembly structure. From the installation method, the screen sub-modules 31 are installed on the hanging beams one by one. There is only the weight of one screen sub-module 31 between each hanging beam and each screen sub-module 31 during installation, which can ensure the seamless connection between the screen sub-module 31 and the hanging beam. Furthermore, as the screen sub-module 31 is hoisted, 1 increases, the disadvantage of the traditional solution will appear, that is, the increase in weight will cause the outer end of the truss to sag, while with the structure and installation method of the present application, although the support point is in the middle, the far end has a deformation tendency to sag under the action of gravity, but the slight deformation amount of the far end sag will cause the screen sub-modules 31 to squeeze each other, and the rigidly connected screen sub-modules 31 will correspondingly produce reverse support for the slight deformation amount of the far end sag, thus ensuring that there is no phase change at the far end of the suspension module 10 without hanging points of the present application, thereby realizing a tightly fitting rigid connection between the screen module 30 and the multiple straight suspension beams of the suspension module 10 without hanging points.

[0041] Specifically, the corresponding relationship between the bottom of the hanging beam and the screen sub-module 31 can be in various forms, including but not limited to: each bottom of the hanging beam corresponds to at least one quick-assembled screen sub-module 31 sequence; or, multiple bottoms of the hanging beams correspond to one quick-assembled screen sub-module 31 sequence; or, multiple bottoms of the hanging beams correspond to multiple quick-assembled screen sub-module 31 sequences.

[0042] Specifically, such as Figure 3 、 Figure 4 、 Figure 5 As shown, the hoisting structure includes: a sub-connecting end 111 and a female connecting end 112 are respectively provided at both ends of the suspension beam, and a mortise and tenon joint connection structure of a connector 1121 and a connecting groove 1111 is provided between the sub-connecting end 111 and the female connecting end 112. The suspension beam also includes a Y-axis fixing member 1112. The connector 1121, the connecting groove 1111, and the Y-axis fixing member 1112 ensure accurate connection of adjacent suspension beams in the three directions of the X-axis, Y-axis, and Z-axis. The X-axis is the long axis direction of the suspension module 10 without a suspension point, the Z-axis is the direction perpendicular to the ground surface, and the Y-axis is the direction perpendicular to the XZ plane. The suspension beam also includes a locking member 1122, which can further tightly lock the mortise and tenon joint connection structure and ensure that adjacent suspension beams remain straight. Typically, a limit platform 1113 is provided at the bottom of the connecting groove 1111 to limit the sinking position of the connector 1121.

[0043] Specifically, the X-axis, Y-axis and Z-axis can be seen in the accompanying drawings. Figure 2 、 Figure 5 .

[0044] The lengths of the suspension beams may be consistent or inconsistent, and inconsistent suspension beam combinations can be used to meet different length requirements. Preferably, the suspension beams include support suspension beams, standard suspension beams, and end-adjustable suspension beams. The support suspension beams are fixedly connected to the T-shaped crossbeam 222 of the crossbeam assembly 22 via crossbeam fixings 221 to form support for the pointless suspension module 10 and the screen module 30. The standard suspension beams correspond one-to-one with the standard screen submodule 31. The end-adjustable suspension beams can be shorter or longer than the standard suspension beams to accommodate user requirements for larger screen widths. The various types of suspension beams have the same structure, including a sub-connection end 111, a female connection end 112, and a locking member 1122.

[0045] Specifically, the bottom of the hanging beam is provided with an upper and lower quick-release lower structure that is the same as or similar to the upper and lower quick-release structure of the screen submodule 31, and the hanging beam is detachably connected to the upper and lower quick-release upper structure of the screen submodule 31 through the upper and lower quick-release lower structure.

[0046] The lifting mechanism 21 is used to adjust the height of the suspension module 10 and the screen module 30, and may include a multi-stage telescopic mechanism, a screw lifting structure, a scissors-type lifting structure, a gear rack lifting structure, a chain / cable lifting structure, and a pneumatic / hydraulic lifting structure.

[0047] Preferably, Figure 6 As shown, the multi-stage telescopic mechanism includes a hydraulic power station 213, a first-level sleeve 211, an N-level sleeve 212 and a bottom support structure; the first-level sleeve 211 is connected to the bottom support structure, and the end sleeve of the N-level sleeve 212 is connected to the crossbeam assembly 22, and the hydraulic power station 213 controls the telescopic position of the N-level sleeve 212 and the first-level sleeve 211; the bottom support structure is used to support the large screen system, the mobile large screen system and the counterweight large screen system, and the bottom support structure includes telescopic legs 214, support feet 215, and universal support wheels 216. The telescopic legs 214 are telescopically adjustable in at least the Y-axis direction, and the support feet 215 and the universal support wheels 216 are arranged on the legs and support the bottom surface. The universal support wheels 216 can also move the installed or disassembled large screen system.

[0048] The bottom support structure also includes at least one screen support rod 217, such as Figure 7As shown, the screen support rod 217 can connect the bottom support structure and the screen module 30 to prevent the screen module 30 from moving or swinging in the Y-axis direction. Although the screen support rod 217 has a simple structure, it actually solves a major pain point of the large-screen system in practical applications. After the large screen is installed, especially in an outdoor space, when it is blown by the air on the windward side, the entire screen is prone to swinging, which not only affects the viewing effect, but also, once such a heavy screen system swings, it will cause huge damage to its own mechanical structure, and also have a great impact on the on-site safety of the large screen. Since the screen is suspended, it is difficult to provide stable support for the bottom.

[0049] In this solution, the screen module 30 is connected to the crossbeam assembly 22 of the elevator module 20, and the crossbeam assembly 22 is arranged at the top of the lifting mechanism 21. Therefore, at least one screen support rod 217 is arranged between the screen module 30 and the bottom support structure at the bottom of the elevator structure, which can form two upper and lower support areas between the screen module 30 and the elevator module 20 on the back, not only enhancing the support stability of the screen module 30, but also adding a stable support structure to the bottom of the hoisting screen module 30, effectively avoiding the swing of the screen under the action of external force.

[0050] Specifically, such as Figure 6 As shown, the beam assembly 22 includes a T-shaped beam 222 and a beam fixing member 221 . The T-shaped beam 222 is fixedly connected to the support beam in the suspension beam through the widened beam at the end through the beam fixing member 221 .

[0051] The beam assembly 22 is further provided with a hanging ring on the T-shaped beam 222 . The hanging ring is provided at the far end of the widened beam. A counterweight is provided on the hanging ring to achieve balanced weighting of the screen module 30 .

[0052] The counterweight module is an important component of the large-screen system of this application. Strictly speaking, the counterweight module includes a hanging ring, a counterweight block, and a bottom support structure. The counterweighting method of the hanging ring and the counterweight block is to achieve a counterweight balance between the top T-shaped beam 222 and the screen module 30 and the counterweight block. The bottom support structure achieves a counterweight balance between the screen module 30 and the overall large-screen system by unfolding the telescopic legs 214, especially extending the telescopic legs 214 toward the direction close to the screen module 30.

[0053] Furthermore, the counterweight block and / or the counterweight rope can be automatically adjusted by the control system to ensure that the screen and the elevator module 20 are always in a good counterweight balance state during the dynamic installation of the screen module 30.

[0054] Specifically, the elevator module 20 further includes a lifting drive device, which includes a multi-stage hydraulic cylinder. The multi-stage hydraulic cylinder is extended and retracted to drive the N of the multi-stage telescopic mechanism and the telescopic movement of the sleeve.

[0055] Specifically, it also includes a lifting control module, which can control the operation of the lifting drive device to achieve the lifting speed and lifting height of the screen module 30.

[0056] The crossbeam assembly 22 also includes a drag chain lifting and wiring device, which includes a drag chain 223 that can be moved up and down. The up and down movement of the drag chain 223 will move the signal line and the power line up and down as a whole at one end to ensure that the connection stability of the signal line and the power line with the screen module 30 is not affected when the elevator module 20 moves up and down.

[0057] During the screen assembly and disassembly process, there is another very important disassembly operation, which is the various wiring harnesses connected to the screen sub-module 31, including power cables and communication cables. In order to avoid the friction, impact, pulling and other external forces generated by the reciprocating motion of the wiring harness during installation, such as wear, tear or entanglement, resulting in physical damage to the wires, and the connection stability between the wiring harness and the screen sub-module 31 is reduced and the interface is loose. The drag chain lifting wiring device can be used to synchronously adjust the tightness and height of the wiring harness as the screen is installed, and it can also facilitate point-to-point rapid troubleshooting when the display device is abnormal.

[0058] In summary, the large-screen system of this solution has the following technical advantages: 1. This solution provides a modular, quick-assembly, and liftable large-screen system. This solution simultaneously achieves the significant technical advantages of being movable and liftable in a single device. The screen submodules 31 can be customized and combined as needed, the large-screen system can be disassembled for easy transportation and access to buildings, and the screen can be extended horizontally and vertically as needed, without the need for external hanging points or lifting trusses. This multifunctional system addresses the defects of various existing large-screen systems and improves the flexibility, convenience, safety, and cost-effectiveness of large-screen systems during rental.

[0059] 2. The pointless suspension module 10 uses a quick-locking beam assembly structure, which frees it from external installation site restrictions and allows for customized quick assembly as needed. The beam assembly is easy to operate and offers a secure connection, improving the assembly efficiency of the large-screen system.

[0060] 3. The elevator module 20 achieves precise control over the screen's lifting and lowering, making it easy to implement automated control. The elevator's control of the screen's lifting and lowering is firstly reflected in the lifting and lowering of the entire screen. Secondly, when installing or removing the multiple screen sub-modules 31 of the screen module 30, the lifting beam assembly 22 allows operators to always perform safe, fast, and labor-saving installation and removal operations at the operating height.

[0061] 4. The screen module 30 utilizes both top and bottom quick-release structures, addressing the challenges of rapid, collision-free assembly of the screen submodules 31 and seamless splicing. Specifically, the screen module 30 is assembled through the base 312 to form a rigid body. This rigid body is then assembled with the rigid body of the spliced, pointless suspension module 10 via top and bottom quick-release structures between the multiple screen submodules 31 and the suspension beams, forming a new rigid entity. This addresses the technical challenges of seamless connection between the screen module 30 and the pointless suspension module 10, as well as the problem of deformation and bending of the long arms of the pointless suspension module 10 when loaded.

[0062] 5. This solution provides a screen installation method for a modular, quick-assembled, and liftable large-screen system. Under the premise of ensuring that the overall installation stability and safety of the large-screen system can be effectively guaranteed, the installer can always keep the working space at the most comfortable installation height by lifting the hanging beam. After completing the splicing of a row of screen sub-modules 31, the elevator module 20 is operated to raise the beam assembly 22 by the box height of a screen sub-module 31, and the operating space of the next row of screen sub-modules 31 to be installed is once again placed at the most comfortable installation height for the installer. This reciprocating cycle is repeated until the screen installation is completed, avoiding the fatigue and safety hazards caused by long-term and frequent cantilever lifting and high-lifting operations of the installer, and also realizing the best implementation solution for completing large-screen installation by one person.

[0063] This embodiment also provides a method for installing a large screen system that can be quickly assembled and lifted. Figure 9 As shown, the following steps are included: S1: The elevator module 20 of the large screen system is moved to the target site by rolling the universal support wheels 216; S2: unfold the bottom support structure of the elevator module 20 to form a stable support; S3: Control the elevator module 20 to raise the beam assembly 22 to the installation height, and assemble multiple suspension beams into a suspension module 10 without suspension points as required; S4: Quickly splice the screen submodules 31 up and down at the bottom of each hanging beam at the installation height, and quickly splice each adjacent screen submodule 31 left and right, install the power and signal cables of each screen submodule 31, and increase the counterweight on the hanging ring to offset the increase in screen weight; S5: Control the elevator module 20 to raise the crossbeam assembly 22 to the installation height + M, where M is the height of the screen submodule 31. At this height, quickly splice the bottom of each screen submodule 31 up and down, and quickly splice each adjacent screen submodule 31 left and right. Install the power cable and signal cable of each screen submodule 31, and increase the counterweight on the lifting ring to offset the increase in the weight of the screen. S6: Repeat the process of the elevator module 20 stepping up one M height each time and splicing a row of screen submodules 31 until all screen modules 30 are spliced, power cables and signal cables are installed, and the screen modules 30 are counterweighted. S7: Connect the screen module 30 to the bottom support structure through the screen support rod 217.

[0064] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The above embodiments only express several implementation methods of the present application. The description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of this application. It should be pointed out that for ordinary technicians in this field, without departing from the concept of this application, several variations and improvements can be made, which all fall within the scope of protection of this application.

[0065] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it may be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it may be directly connected to the other component or indirectly connected to the other component. It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting this application.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0067] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

Claims

1. A modular, quick-assembled, and liftable large-screen system, characterized in that: include: The suspension module without hanging points includes multiple hanging beams. Each hanging beam includes a sub-connection end and a mother-connection end. Adjacent hanging beams are fixed and adjusted to maintain straightness through quick locks between the sub-connection ends and the mother-connection ends. The bottom of the hanging beam can be quickly spliced with modular screen sub-modules. The elevator module includes a lifting mechanism and a beam assembly. The lifting mechanism controls the lifting of the beam assembly. The beam assembly is connected to the suspension module without hanging points. The lifting of the beam assembly controls the lifting of the suspension module without hanging points. The screen module includes multiple screen sub-modules, which include a base with a rigid structure and a display screen fixed on the base. The base includes left and right quick-disassembly structures and upper and lower quick-disassembly structures so that the screen sub-modules can be quickly combined in a modular manner. All the bases of the screen modules are connected through the left and right quick-disassembly structures and the upper and lower quick-disassembly structures to form a rigid body. A tightly fitting rigid connection is formed between the screen module with a rigid body and the multiple straight hanging beams of the suspension module without hanging points.

2. The modular, quick-assembly, and liftable large-screen system according to claim 1, characterized in that: Each hanging beam bottom corresponds to at least one screen submodule sequence; Or, the bottoms of multiple hanging beams correspond to a quick assembly of a screen submodule sequence; Alternatively, multiple hanging beam bottoms correspond to a quick assembly of multiple screen sub-module sequences.

3. The modular, quick-assembly, and liftable large-screen system according to claim 1 is characterized by: A sub-connecting end and a female connecting end are respectively provided at both ends of the hanging beam. A mortise and tenon connection structure of a connecting head and a connecting groove is provided between the sub-connecting end and the female connecting end. The hanging beam also includes a Y-direction fixing member. The connecting head, the connecting groove and the Y-direction fixing member ensure that adjacent hanging beams are accurately connected in three directions of the X-axis, the Y-axis and the Z-axis. The X-axis is the long axis direction of the suspension module without a hanging point, the Z-axis is the vertical direction of the ground surface, and the Y-axis is the vertical direction of the XZ plane.

4. The modular, quick-assembly, and liftable large-screen system according to claim 1, characterized in that: The hanging beam further includes a locking member, which can further tightly lock the mortise and tenon connection structure and achieve the straightness between adjacent hanging beams.

5. The modular, quick-assembly, and liftable large-screen system according to claim 1 is characterized by: The lengths of the suspension beams are consistent or inconsistent, and a combination of inconsistent suspension beams can match combination requirements of different length requirements.

6. The modular, quick-assembly, and liftable large-screen system according to claim 1, characterized in that: The bottom of the hanging beam is provided with an upper and lower quick-detachable lower structure that is the same as or similar to the upper and lower quick-detachable structure of the screen submodule. The hanging beam is detachably connected to the upper and lower quick-detachable upper structure of the screen submodule through the upper and lower quick-detachable lower structure.

7. The modular, quick-assembly, and liftable large-screen system according to claim 1 is characterized by: The lifting mechanism includes: a multi-stage telescopic mechanism, a screw lifting structure, a scissor-type lifting structure, a gear rack lifting structure, a chain / steel cable lifting structure, and a pneumatic / hydraulic lifting structure.

8. The modular, quick-assembly, and liftable large-screen system according to claim 7, characterized in that: The multi-stage telescopic mechanism includes a hydraulic power station, a first-stage casing, an N-stage casing and a bottom support structure; The first-level casing is connected to the bottom support structure, the end casing of the N-level casing is connected to the crossbeam assembly, and the hydraulic power station controls the telescopic position of the N-level casing and the first-level casing; The bottom support structure is used to support the large-screen system, the mobile large-screen system and the counterweight large-screen system. The bottom support structure includes telescopic legs, support feet, and universal support wheels. The telescopic legs are telescopically adjustable at least in the Y-axis direction. The support feet and universal support wheels are arranged on the legs and support the bottom surface. The universal support wheels can also move the installed or disassembled large-screen system.

9. The modular, quick-assembly, and liftable large-screen system according to claim 1, characterized in that: The bottom supporting structure further includes at least one screen supporting rod, which can connect the bottom supporting structure and the screen module to prevent the screen module from moving or swinging in the Y-axis direction.

10. The modular, quick-assembly, and liftable large-screen system according to claim 1, characterized in that: The crossbeam assembly includes a T-shaped crossbeam and a crossbeam fixing piece. The T-shaped crossbeam is fixedly connected to the support beam in the suspension beam through the widened beam at the end portion through the crossbeam fixing piece.

11. The modular, quick-assembly, and liftable large-screen system according to claim 1 is characterized by: The beam assembly is further provided with a hanging ring on the T-shaped beam, and the hanging ring is provided at the far end of the widened beam. A counterweight block is provided on the hanging ring to achieve balanced counterweighting of the screen module.

12. The modular, quick-assembly, and liftable large-screen system according to claim 1, characterized in that: The elevator module also includes a lifting drive device, which includes a multi-stage hydraulic cylinder. The multi-stage hydraulic cylinder is telescopic to drive the N of the multi-stage telescopic mechanism and the telescopic movement of the sleeve.

13. The modular, quick-assembly, and liftable large-screen system according to claim 12, characterized in that: It also includes a lifting control module, which can control the operation of the lifting drive device to achieve the lifting speed and lifting height of the screen module.

14. The modular, quick-assembly, and liftable large-screen system according to claim 1, characterized in that: The crossbeam assembly also includes a drag chain lifting and wiring device, which includes a drag chain that can be moved up and down. The up and down movement of the drag chain will move the signal line and the power line up and down as a whole at one end to ensure that the connection stability of the signal line and the power line with the screen module is not affected when the elevator module moves up and down.

15. A screen installation method for a modular, quick-assembled, liftable large-screen system, characterized in that: The steps include: S1: Move the elevator module of the large screen system to the target site through the rolling of the universal support wheels; S2: unfold the bottom support structure of the elevator module to form a stable support; S3: Control the elevator module to raise the beam assembly to the installation height, and assemble multiple hanging beams into a suspension module without hanging points according to requirements; S4: Quickly splice the screen submodules up and down at the bottom of each hanging beam at the installation height, and quickly splice each adjacent screen submodule left and right. Install the power and signal cables for each screen submodule, and increase the counterweight on the lifting ring to offset the increase in screen weight. S5: Control the elevator module to raise the crossbeam assembly to the installation height + M, where M is the height of the screen submodule. At this height, quickly splice the bottom of each screen submodule up and down, and quickly splice each adjacent screen submodule left and right. Install the power and signal cables of each screen submodule, and increase the counterweight on the lifting ring to offset the increase in screen weight. S6: Repeat the process of the elevator module stepping up one M height each time and splicing a row of screen submodules until all screen modules are spliced, power cables and signal cables are installed, and the screen modules are counterweighted; S7: Connect the screen module to the bottom support structure through the screen support rod.

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