Transport rack and application method thereof

Abstract

The present invention provides a transport frame and its application method. The transport frame includes a transport vehicle, a plurality of back frames and a hanging beam. The transport vehicle is provided with a load-bearing surface and fences detachably provided at the left and right ends of the load-bearing surface. The load-bearing surface and the fence are provided with a plurality of first splicing structures along the length direction of the fence; the plurality of back frames are arranged along the length direction of the fence and are detachably installed on the transport vehicle through the first splicing structure, and the hanging beam is detachably provided at the upper end of the back frame. An independent display unit is formed by installing an LED module on the back frame. During the transportation stage, the back frame can be installed and fixed by the transport vehicle and the fence to prevent collision and damage between them. After being transported to the site, it is only necessary to remove the fence and then use the hanging beam to quickly lift the back frame. The second splicing structure on the back frame can then be used to quickly assemble the back frames.

Description

Technical Field

[0001] The invention belongs to the technical field of display screens, and particularly relates to a transport rack and an application method thereof. Background Art

[0002] LED displays, characterized by high brightness, low power consumption, long life, wide viewing angles, and seamless splicing, have attracted widespread attention and are experiencing rapid growth. Event venues often utilize large LED displays by splicing multiple display units together as stage backdrops. These units are typically shipped to the event site in flight cases, where they are then removed from the cases for hoisting and assembly. This results in high transportation costs and is not conducive to the setup and disassembly of large LED displays. Summary of the Invention

[0003] The present invention aims to solve at least one of the above-mentioned technical problems existing in the prior art. To this end, the present invention provides a transport rack that facilitates the transportation, assembly and disassembly of the display units of the LED display screen, thereby reducing transportation costs.

[0004] The present invention also provides an application method for the transport rack.

[0005] According to the first aspect of the present invention, the transport frame includes a transport vehicle and multiple back frames. The transport vehicle is provided with a load-bearing surface and fences detachably provided at the left and right ends of the load-bearing surface. The load-bearing surface and the fence are provided with multiple first splicing structures along the length direction of the fence; the multiple back frames are arranged along the length direction of the fence and are detachably mounted on the transport vehicle through the first splicing structure. The back frame is provided with several LED module mounting positions for installing LED modules and forming a display unit through the back frame. Second splicing structures that match each other are provided between the upper end and the bottom end and between the left end and the right end of the back frame, so as to be spliced with each other through the second splicing structure when the back frame is separated from the transport vehicle.

[0006] The transport rack according to the embodiment of the present invention has at least the following beneficial effects:

[0007] The transport frame with the above-mentioned structure is used to install LED modules on the back frame to form an independent display unit. During the transportation stage, the back frame can be installed using a transport vehicle and a fence to fix the back frames to prevent them from colliding with each other and being damaged. After being transported to the site, it is only necessary to remove the fence to achieve rapid lifting of the back frame, and then use the second splicing structure on the back frame to achieve rapid assembly between the back frames. Compared with the traditional method of transporting using an aviation box, the transport frame of the present invention has lower costs and can achieve rapid installation, fixation and removal of the back frame on the transport vehicle, which is conducive to improving the efficiency of construction and disassembly and transportation. The transport frame of the present invention can fix the bottom and sides of the back frame by the first splicing structure to ensure the stability of the back frame when it is installed on the transport vehicle, and prevent the LED modules installed on the back frame from colliding with each other and being damaged.

[0008] According to some embodiments of the present invention, the second splicing structure includes a snap lock and a locking member, the snap lock and the locking member are distributed in pairs, and one of the paired snap lock and the locking member is arranged at the left end of the backpack frame, and the other is arranged at the right end of the backpack frame.

[0009] According to some embodiments of the present invention, longitudinal beams are provided at the left and right ends of the back frame, and the longitudinal beams are provided with two beam bodies and tension bars connected between the two beam bodies in parallel. The longitudinal beams are provided with multiple mounting plates between the two beam bodies along the length direction, some of the mounting plates are used to install the hasp lock and the locking member, and some of the mounting plates are used to install the cross beams between the longitudinal beams.

[0010] According to some embodiments of the present invention, the hasp lock includes a lock body provided on the inner side of the mounting plate and a first convex-shaped splicing portion provided on the outer side of the mounting plate, the lock body is provided with a locking rod that bypasses both sides of the upper end of the first convex-shaped splicing portion and extends to the outside of the back frame, the locking member includes a second convex-shaped splicing portion provided on the outer side of the mounting plate at the other end of the back frame corresponding to the hasp lock, and the first convex-shaped splicing portion and the second convex-shaped splicing portion are provided with mutually matching positioning pin holes.

[0011] According to some embodiments of the present invention, the first splicing structure includes a limit block and a hook provided on the fence, the limit block is provided with a limit head whose width is adapted to the spacing between the two beams of the back frame, so that it is inserted between the two beams of the back frame through the limit head to limit the front and rear positions, and the hook is provided with a hook adapted to the tie bar or the mounting plate, so that the tie bar or the mounting plate can be buckled through the hook.

[0012] According to some embodiments of the present invention, the second splicing structure includes a locking protrusion and a latch lock arranged in pairs, one of the paired locking protrusion and the latch lock is arranged at the upper end of the back frame, and the other is arranged at the lower end of the back frame, the locking protrusion is laterally provided with a locking hole, the latch lock is provided with an insertion cavity adapted to the locking protrusion and a locking pin adapted to the locking hole, and the locking pin can laterally enter and exit the insertion cavity.

[0013] According to some embodiments of the present invention, the second splicing structure further includes a guide post hole provided at the bottom of the back frame and a corresponding guide post provided at the top of the back frame.

[0014] According to some embodiments of the present invention, the latch lock is arranged at the bottom of the back frame, the locking protrusion is correspondingly arranged at the top of the back frame, and the first splicing structure includes a positioning column corresponding to the guide column hole and a positioning protrusion corresponding to the latch lock on the bearing surface.

[0015] According to some embodiments of the present invention, the transport frame further includes a lifting beam, which is detachably provided at the upper end of the back frame, and a lifting ring is provided at the upper end of the lifting beam for lifting the back frame; the lifting beam is provided with a lifting lock adapted to the locking protrusion, a positioning cavity adapted to the guide column, and the lifting beam is provided with a plurality of lifting positions along the length direction of the back frame, and the lifting ring is detachably provided at any of the lifting positions.

[0016] According to the application method for the above-mentioned transport frame of the embodiment of the second aspect of the present invention, the LED module is first installed on the back frame so that each back frame forms a display unit, and then the back frame is installed on the load-bearing surface of the transport vehicle, and then the fence is installed on the transport vehicle and connected and fixed to the back frame; after transportation to the site, the fence is first disassembled, and then the hanging beam is installed on the upper end of the back frame, and then the hanging beam is used in conjunction with the lifting equipment to lift the first row of the back frames to the second row of the back frames. After splicing and fixing, the first and second rows of the back frames are lifted to the upper end of the third row of the back frames for splicing and fixing, and the remaining back frames are assembled in this way until the LED display screen is completed; when disassembling, the back frames are lifted and removed from the bottom to the top and fixed to the transport vehicle, and the fence is installed and fixed after a set number of the back frames are placed and fixed on the transport vehicle.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 for Figure 1 A magnified schematic diagram of area A in the middle;

[0021] Figure 3 for Figure 1 A magnified schematic diagram of area B in the middle;

[0022] Figure 4 Schematic diagram of the overall structure of a back frame;

[0023] Figure 5 A schematic diagram of the structure of a locking member on a backpack;

[0024] Figure 6 A schematic diagram of a structure of a hasp lock on a backpack;

[0025] Figure 7 A schematic diagram of a structure of a hasp lock and a latch lock on a backpack;

[0026] Figure 8 This is a schematic diagram of a structure in which a fence is installed on a transport vehicle;

[0027] Figure 9 A schematic diagram of a structure for separating the fence from the transport vehicle;

[0028] Figure 10 A structural diagram of a hanging beam;

[0029] Figure 11 A cross-sectional view of a hanging beam;

[0030] Figure 12 This is a schematic diagram of the installation of the hanging beam and the back frame. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, "a plurality" refers to more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] Reference Figures 1 to 12 As shown, a transport frame according to an embodiment of the present invention includes a transport vehicle 100, a plurality of back frames 300, and a hanging beam 400. The transport vehicle 100 is provided with a load-bearing surface and fences 200 detachably provided at the left and right ends of the load-bearing surface. The load-bearing surface and the fence 200 are provided with a plurality of first splicing structures along the length direction of the fence 200. The bottom of the transport vehicle 100 is provided with rollers. The rollers can be configured as lockable roller structures, liftable roller structures, universal wheel structures, etc. as needed. A spacing is maintained between two adjacent first splicing structures. Multiple back frames 300 are spaced apart along the length of the fence 200. Each back frame 300 is removably mounted on the transport vehicle 100 via a first splicing structure. The first splicing structure on the support surface supports and secures the bottom of the back frame 300, while the first splicing structure on the fence 200 vertically secures the left and right sides of the back frame 300. The fence 200 connects all the back frames 300, forming a relatively fixed unit. This effectively prevents the back frames 300 from shaking during transportation with the transport vehicle 100. Each back frame 300 is equipped with six LED module mounting locations for six LED modules. Matching second splicing structures are provided between the top and bottom, as well as between the left and right ends of the back frame 300, allowing for reconnection when removed from the transport vehicle 100. It is understood that once the LED modules are installed, the back frame 300 forms a display unit. A lifting beam 400 is detachably mounted on the upper end of the back frame 300 and is provided with a lifting ring 401. Multiple lifting beams 400 can be provided, so that a lifting beam 400 is mounted on the upper end of each back frame 300. The lifting beams 400 can also be pre-installed on the back frames 300, facilitating direct installation of each back frame 300 after transport to the site. Since the lifting beams 400 need to be removed, it is also possible to configure fewer lifting beams 400 than the back frames 300, temporarily installing and removing them on site for reuse.

[0036] The transport rack using the above-described structure is used to mount LED modules on a back frame 300 to form an independent display unit. During transportation, the back frame 300 can be mounted using a transport vehicle 100 and a fence 200 to secure the back frame 300 and prevent them from colliding with each other and being damaged. After transport to the site, the fence 200 only needs to be removed, and the back frame 300 can be quickly hoisted using the hanging beam 400. The second splicing structure on the back frame 300 can then be used to quickly assemble the back frames 300. Compared to the traditional method of transporting using an air box, the transport rack of the present invention is less expensive and can achieve rapid installation, fixation, and removal of the back frame 300 on the transport vehicle 100, thereby improving both installation efficiency and disassembly and transportation efficiency. The transport rack of the present invention can secure the bottom and sides of the back frame 300 using the first splicing structure, ensuring the stability of the back frame 300 when mounted on the transport vehicle 100 and preventing the LED modules mounted on the back frame 300 from colliding with each other and being damaged.

[0037] Reference Figure 2 、 Figure 5 and Figure 6 In some embodiments of the present invention, the second splicing structure includes a snap lock 302 and a locking member. The snap lock 302 and the locking member are distributed in pairs, and one of the paired snap lock 302 and the locking member is located at the left end of the back frame 300, and the other is located at the right end of the back frame 300. Since the display units are mainly subjected to gravity when splicing into a large LED display screen, the left and right directions only need to ensure that they fit together to avoid large gaps. With the structural arrangement of this embodiment, when two back frames 300 are horizontally spliced (i.e., left and right splicing), the snap lock 302 can be used to overlap the locking member on the other back frame 300. When the snap lock 302 is locked, the locking member is tightened, so that the two back frames 300 fit tightly together, which can not only ensure the splicing quality and effect, but also facilitate quick splicing and disassembly. In actual installation, it is preferred to only install the hasp lock 302 at the left or right end, and install the locking member at the corresponding right or left end. This allows the staff to quickly complete the horizontal splicing of the back frame 300 during splicing, without having to switch left and right to install the hasp lock 302, which helps improve assembly and disassembly efficiency. If the back frame 300 is large and has a high height, the hasp lock 302 and the locking member can be staggered, that is, both the hasp lock 302 and the locking member are installed at the left end, and the locking member and hasp lock 302 are installed at the right end, respectively, to ensure splicing strength.

[0038] Reference Figure 2 and Figure 4In some embodiments of the present invention, a back frame 300 is provided with longitudinal beams 301 at both ends. The longitudinal beams 301 are provided with two parallel beams and tie bars connecting the two beams. Multiple mounting plates 3011 are provided between the longitudinal beams 301 along their length. Some mounting plates 3011 are used to mount hasp locks 302 and locking members, while others are used to mount cross beams 310 between the longitudinal beams 301. With the structural arrangement of this embodiment, the arrangement of the mounting plates 3011 allows for multiple mounting locations on the longitudinal beams 301, allowing for flexible adjustment of the position and number of cross beams 310, as well as the position and number of hasp locks 302 and locking members, as needed.

[0039] Reference Figure 4 、 Figure 5 and Figure 7 The longitudinal beam 301 is equipped with five mounting plates 3011, each of which has four mounting holes arranged in a matrix. Vertically downward, the first, third, and fifth mounting plates 3011 are equipped with latch locks 302 and locking members, while the second and fourth mounting plates 3011 are equipped with crossbeams 310. End beams 303 are provided between the upper and lower ends of the longitudinal beam 301. An intermediate beam 308 is vertically positioned midway between the end beams 303. The structure of the intermediate beam 308 is identical to that of the longitudinal beam 301, allowing the same component to be used during production. The component is simply divided into longitudinal beams 301 and intermediate beams 308 according to the different installation locations, facilitating production management. The back frame 300 is divided into six LED module mounting locations by the crossbeams 310 and intermediate beams 308. The structures of the crossbeams 310 and end beams 303 are similar to those of the longitudinal beam 301, both consisting of lightweight steel structures formed by two beams and tie bars. The ends of beam 310 are provided with connectors. The end closest to beam 310 fits between the two beam sections of beam 310. A splicing groove is provided on the outside of the connector to mate with the beam sections of beam 310. The beam sections of beam 310 and the connector are fastened to each other via bolts in the corresponding areas of the splicing groove. The end of the connector, further from beam 310, fits into mounting plate 3011 and is secured with bolts through the mounting holes.

[0040] The hasp lock 302 comprises a lock body mounted on the inside of the mounting plate 3011 and a first convex-shaped joint 3021 mounted on the outside of the mounting plate 3011. The lock body and the first convex-shaped joint 3021 are secured by bolts passing through mounting holes. The lock body is provided with a locking rod 3022 that passes around the upper end of the first convex-shaped joint 3021 and extends to the outside of the back frame 300. The locking member comprises a second convex-shaped joint 309 mounted on the outside of the mounting plate 3011 at the other end of the back frame 300, corresponding to the hasp lock 302. The second convex-shaped joint 309 is secured by bolts passing through mounting holes. The first convex-shaped joint 3021 and the second convex-shaped joint 309 are provided with matching locating pin holes. The second convex-shaped splicing portion 309 is arranged on the outside of the mounting plate 3011, which not only facilitates its fitting and fixing with the first convex-shaped splicing portion 3021, and utilizes the positioning pin hole to achieve positioning during the splicing process, but also helps to reduce the length of the locking rod 3022, reducing space occupation and material usage during the production process. Each beam adopts a light steel structure with a beam body and tie bars, which facilitates the installation and setting of the mounting plate 3011, the buckle lock 302 and other structures, and can also ensure the overall structural strength of the back frame 300, and improve its rigidity when assembled outdoors. Since the left and right spliced back frames 300 are mainly spliced together by the buckle lock 302 and the locking member, the force is relatively small, so the size of the positioning pin hole can be appropriately reduced, and only pre-positioning is required.

[0041] The buckle lock 302 in this embodiment can adopt the relevant structure of the existing technology, which is not specifically limited here.

[0042] Based on the aforementioned structure of the back frame 300, in some embodiments of the present invention, the first splicing structure includes a stopper 201 and a hook 202 provided on the fence 200. The stopper 201 has a stopper head whose width matches the spacing between the two beams of the back frame 300, allowing it to be inserted between the two beams of the back frame 300 to limit the forward and backward movement. The hook 202 has a hook that matches the tie rod or mounting plate 3011, allowing it to be fastened to the tie rod or mounting plate 3011. With this structural arrangement, the left and right fences 200 are fitted between the two beams of the longitudinal beam 301 using the stopper 201, preventing the back frame 300 from rocking forward and backward relative to the fence 200. Furthermore, the hook 202, which fastens to the longitudinal beam 301, prevents the fence 200 from slipping outward. Since the fence 200 is detachably mounted on the transport vehicle 100, the hook 202 can be used to form a fixed whole with the back frame 300, the transport vehicle 100 and the fence 200. The hook of the hook 202 is preferably configured to protrude upwards, so that when the tie rod or the mounting plate 3011 is fastened, the fence 200 can be prevented from falling off in the upward direction. Figure 2The stopper 201 is convex-shaped, allowing the shoulders at both ends of the protruding portion to abut against the two beams of the longitudinal beam 301, achieving abutment and positioning. The hook 202 can be elastic to facilitate insertion and removal, or it can be detachable. Since there are multiple back frames 300 distributed along the front-to-back direction, the structural arrangement of this embodiment facilitates both the splicing and fixing of the fence 200 to all back frames 300 and the rapid separation.

[0043] It is understood that the fence 200 can also be provided with a structure that matches the hasp lock 302 and the locking member to achieve a locked installation. However, compared with the structural arrangement of the aforementioned embodiment, this form requires each back frame 300 to be spliced and unlocked one by one, which may affect efficiency.

[0044] In some embodiments of the present invention, the second splicing structure includes a locking protrusion 305 and a latch lock 307 arranged in pairs, one of which is located at the upper end of the back frame 300 and the other is located at the lower end of the back frame 300. The locking protrusion 305 is laterally provided with a locking hole 306, and the latch lock 307 is provided with an insertion cavity 3071 adapted to the locking protrusion 305 and a locking pin adapted to the locking hole 306, and the locking pin can laterally enter and exit the insertion cavity 3071. Using the structural arrangement of this embodiment, two upper and lower adjacent back frames 300 can be tightly connected together through the latch lock 307 and the locking protrusion 305, achieving anti-slip fixation. The locking pin of the latch lock 307 has a locked state to prevent uncontrolled unlocking, and has good stability, which can ensure the reliability of the splicing between the back frames 300.

[0045] Furthermore, the second splicing structure includes guide post holes located at the bottom of the back frame 300 and corresponding guide posts 304 located at the top of the back frame 300. During splicing, the guide posts 304 fit into the guide post holes of the upper back frame 300 to achieve splicing positioning, thereby improving the splicing strength and enhancing the impact resistance between the two back frames 300 along the thickness direction. Furthermore, the connecting seats between the longitudinal beam 301 and the end beam 303, and between the intermediate beam 308 and the end beam 303, are also equipped with matching locating pin holes. The locating pins of these locating pin holes are located at the top of the back frame 300, and the locating holes are located at the bottom of the back frame 300. This prevents interference when the back frame 300 is placed on the transport vehicle 100. The size of these locating pin holes can be consistent with the locating pin holes on the left and right ends of the back frame 300, and both are smaller than the guide posts 304 and the guide post holes. This facilitates production material management, provides universality, and improves the positioning accuracy of the back frames 300 during splicing.

[0046] In some embodiments of the present invention, the latch lock 307 is provided at the bottom of the back frame 300, and the locking protrusion 305 is correspondingly provided at the top of the back frame 300, which can also avoid interference when the back frame 300 is provided on the transport vehicle 100. The first splicing structure includes a positioning column 102 provided on the bearing surface corresponding to the guide column hole, and a positioning protrusion 103 provided on the bearing surface corresponding to the latch lock 307. When the back frame 300 is hoisted onto the bearing surface of the transport vehicle 100, the positioning column 102 is inserted into the guide column hole, and the positioning protrusion 103 is inserted into the insertion cavity 3071 of the latch lock 307, and the locking pin is used to prevent it from falling off. Afterwards, the fence 200 is used to fix it from the left and right ends to ensure the reliable fixation of the entire system of the transport vehicle 100, the fence 200, and the back frame 300.

[0047] Reference Figure 9 The transport vehicle 100 is provided with four longitudinally distributed bases 101 along the left and right sides, with the bases 101 extending longitudinally along the front-to-back direction. The upper ends of the two bases 101 on the left and right sides are provided with multiple positioning protrusions 103 along the front-to-back direction, which engage with the latch locks 307 at the lower ends of the back frames 300. The upper ends of the two central bases 101 are provided with multiple positioning posts 102 along the front-to-back direction, which engage with the guide post holes at the lower ends of the back frames 300. This embodiment, by providing the positioning protrusions 103 on one base 101 and the positioning posts 102 on another base 101, facilitates ensuring the positional accuracy and height between the positioning protrusions 103, as well as the positional accuracy and height between the positioning posts 102, during the production process. Furthermore, a center seat is provided at the center of the support surface corresponding to the back frames 300. The center seats are also distributed along the front-to-back direction to support the center positions of all back frames 300. The arrangement of the bases 101 in this embodiment also improves the structural strength and stability between adjacent back frames 300, resulting in higher structural strength compared to a configuration in which each back frame 300 corresponds to a separate base 101.

[0048] In some embodiments of the present invention, the lifting beam 400 is provided with a lifting lock 403 adapted to the locking protrusion 305, a positioning cavity 402 adapted to the guide post 304, and the lifting beam 400 is provided with multiple lifting positions along the length direction of the back frame 300, and the lifting ring 401 is detachably provided at any lifting position. With the structural arrangement of this embodiment, the lifting ring 401 has multiple installation positions, and the position of the lifting ring 401 can be flexibly set according to actual needs to facilitate lifting. The positioning cavity 402 can cooperate with the guide post 304 to achieve horizontal positioning, and the lifting lock 403 cooperates with the locking protrusion 305 to achieve vertical fixation, thereby achieving lifting force. The structure of the lifting lock 403 can be consistent with that of the latch lock 307.

[0049] Reference Figure 8 and Figure 9The transport vehicle 100's load-bearing surface is provided with a socket at each of its front and rear ends. L-shaped sockets 203 are located on the inner side of the bottom of the fence 200. These L-shaped sockets 203 engage the sockets, securing the fence 200 to the load-bearing surface at both ends. The main body of the fence 200 is positioned outside the left and right ends of the transport vehicle 100, extending outward. This ensures that the width of the transport vehicle 100 is consistent with that of the back frame 300, eliminating the need to increase the size to accommodate the fence 200. This helps reduce the overall size, material usage, and weight of the transport frame. Furthermore, the fence 200 is simply plugged into and positioned by the sockets 203. When the hooks 202 are unlocked, the fence 200 can be flipped outward and pulled upward, facilitating quick removal during disassembly and quick installation once the back frame 300 is hoisted onto the transport vehicle 100.

[0050] Furthermore, matching guide pins 105 and guide holes 104 are provided on both ends of the transport vehicle 100. The extended length of the guide pins 105 is less than the maximum distance the main body of the fence 200 extends outward when installed on the transport vehicle 100, allowing the ends of the guide pins 105 to retract inward relative to the outer end surface of the fence 200. This provides protection during the transportation and movement of the fence 200 while installed on the transport vehicle 100, preventing the outwardly extending guide pins 105 from contacting personnel or other objects, thereby preventing injuries or damage from collisions with the guide pins 105 and also preventing damage to the guide pins 105. When disassembling and hoisting the back frame 300 on site, once the fence 200 is removed, the guide pins 105 and guide holes 104 can be used to coordinate and position the two transport vehicles 100.

[0051] It is understood that the structural arrangement of this embodiment is applicable to the situation where multiple transport vehicles 100 are used to transport and transfer the back frames 300. When the number of back frames 300 loaded on a single transport vehicle 100 meets the requirements for splicing LED display screens, the arrangement of the guide pins 105 and the guide holes 104 can be optimized.

[0052] In summary, the transport frame, transport vehicle 100, fence 200 and hanging beam 400 in the present invention fully utilize the second splicing structure of the back frame 300 itself to install and position the back frame 300, which is convenient for quick assembly and disassembly of the back frame 300 without complicating the structure. The first splicing structure and the second splicing structure have a certain consistency, which facilitates the unified production, management and interchange of components in the production workshop. For example, the positioning column 102 set on the load-bearing surface of the transport vehicle 100 and the guide column 304 at the upper end of the back frame 300 can be made of the same component. The present invention fully combines the functional requirements of the first splicing structure and the second splicing structure, and realizes the rapid splicing and disassembly of the back frame 300 by designing the second splicing structure of the back frame 300. At the same time, the design of the matching first splicing structure realizes the rapid installation and removal of the back frame 300 on the transport vehicle 100. The cost of using aviation boxes for transportation is reduced, while the convenience and efficiency of the entire process of transporting, installing and disassembling the display unit are improved.

[0053] In addition, the present invention also provides an application method for the above-mentioned transport rack, which specifically includes:

[0054] First, the LED modules are mounted on the back frame 300 so that each back frame 300 forms a display unit;

[0055] The back frames 300 are then installed one by one onto the load-bearing surface of the transport vehicle 100, and are positioned and fixed using the first splicing structure and the second splicing structure at the bottom of the back frames 300. This installation process can be performed by installing a hanging beam 400 at the upper end of the back frames 300 for hoisting, or by other methods.

[0056] After the back frame 300 on the transport vehicle 100 reaches the set loading quantity, the fence 200 is installed on the transport vehicle 100 and is connected and fixed to the second splicing structures on the left and right ends of the back frame 300 through the first splicing structure provided on the fence 200;

[0057] After transporting to the site, first release the locking relationship between the fence 200 and the back frame 300 and disassemble the fence 200;

[0058] Then, install the hanging beam 400 on the upper end of the first row of back frames 300 to release the locking relationship between the first row of back frames 300 and the transport vehicle 100;

[0059] Then, the first row of back frames 300 are hoisted onto the second row of back frames 300 using the lifting beam 400 in conjunction with the lifting equipment, and are connected and fixed via the second splicing structure;

[0060] Then release the lock between the second row of back frames 300 and the transport frame, and then hoist the first and second rows of back frames 300 together onto the third batch of back frames 300;

[0061] Follow this sequence to complete the construction of the LED display.

[0062] In the above process, the locking between the backpack 300 and the transport vehicle 100 can also be released when the fence 200 is dismantled.

[0063] Before hoisting, after dismantling the fence 200, multiple transport vehicles 100 can be horizontally spliced to achieve left and right splicing of the back frame 300, and then hoisting can be carried out.

[0064] During disassembly, the back frames 300 are hoisted and removed from the bottom and fixed to the transport vehicle 100 in sequence. After a predetermined number of back frames 300 are placed and fixed on the transport vehicle 100, the fence 200 is installed to secure the back frames 300. The process of removing the back frames 300 can be achieved by directly using a lifting device to hoist the entire LED display onto the transport vehicle 100. After the bottom back frame 300 is fixed, the back frame 300 is released from the upper back frame 300. The entire back frame 300 is then moved to the second placement position on the transport vehicle 100 using the lifting device, and the bottom back frame 300 is released. The disassembly of all back frames 300 is completed in this order.

[0065] In the above process, the lifting beam 400 can be pre-installed when the back frame 300 is initially mounted on the transport vehicle 100, so that the lifting can be performed directly on site. Furthermore, when removing the fence 200, the fence 200 can be completely removed from the transport vehicle 100, or the fence 200 can be simply tilted outward at an appropriate angle so as not to hinder the removal and installation of the back frame 300.

[0066] The present invention has been described in detail above with reference to the embodiments. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the spirit of the present invention.

Claims

1. A transport rack, characterized in that: include: A transport vehicle, the transport vehicle comprising a load-bearing surface and fences detachably provided at left and right ends of the load-bearing surface, the load-bearing surface and the fences being provided with a plurality of first splicing structures along the length direction of the fences; A plurality of back frames, arranged along the length of the fence and detachably mounted on the transport vehicle via the first splicing structure, the back frames being provided with a plurality of LED module mounting positions for mounting LED modules and forming a display unit via the back frames, and second splicing structures matching each other are provided between the upper and bottom ends and between the left and right ends of the back frames, for achieving mutual splicing via the second splicing structures when the back frames are detached from the transport vehicle; The second splicing structure includes a buckle lock and a locking member, the buckle lock and the locking member are distributed in pairs, and one of the buckle lock and the locking member is provided at the left end of the backpack frame, and the other is provided at the right end of the backpack frame; The left and right ends of the back frame are provided with longitudinal beams, and the longitudinal beams are provided with two beam bodies and tie bars connected between the two beam bodies in parallel. The longitudinal beams are provided with multiple mounting plates between the two beam bodies along the length direction, some of the mounting plates are used to install the buckle lock and the locking member, and some of the mounting plates are used to install the cross beams between the longitudinal beams; The first splicing structure includes a limit block and a hanging buckle provided on the fence, the limit block is provided with a limit head with a width adapted to the spacing between the two beams of the back frame, so as to be inserted between the two beams of the back frame through the limit head for front and rear limiting, the hanging buckle is provided with a hook adapted to the tie bar or the mounting plate, so as to buckle the tie bar or the mounting plate through the hanging buckle; the second splicing structure includes a locking protrusion and a latch lock arranged in pairs, one of the paired locking protrusions and the latch lock is provided at the upper end of the back frame, and the other is provided at the lower end of the back frame, the locking protrusion is transversely provided with a locking hole, and the latch lock is provided with an insertion cavity adapted to the locking protrusion and a locking pin adapted to the locking hole, and the locking pin can enter and exit the insertion cavity transversely.

2. The transport rack according to claim 1, wherein: The hasp lock includes a lock body provided on the inner side of the mounting plate and a first convex-shaped splicing portion provided on the outer side of the mounting plate; the lock body is provided with a locking rod which passes around both sides of the upper end of the first convex-shaped splicing portion and extends to the outer side of the back frame; the locking member includes a second convex-shaped splicing portion provided on the outer side of the mounting plate at the other end of the back frame corresponding to the hasp lock; the first convex-shaped splicing portion and the second convex-shaped splicing portion are provided with mutually matching positioning pin holes.

3. The transport rack according to claim 1, wherein: The second splicing structure further includes a guide post hole provided at the bottom of the back frame and a corresponding guide post provided at the top of the back frame.

4. The transport rack according to claim 3, characterized in that: The latch lock is arranged at the bottom of the back frame, and the locking protrusion is correspondingly arranged at the top of the back frame. The first splicing structure includes a positioning column corresponding to the guide column hole and a positioning protrusion corresponding to the latch lock.

5. The transport rack according to claim 4, characterized in that: The transport frame also includes a hanging beam, which is detachably mounted on the upper end of the back frame. A hanging ring is provided on the upper end of the hanging beam for hanging the back frame. The hanging beam is provided with a hanging lock adapted to the locking protrusion and a positioning cavity adapted to the guide column. The hanging beam is provided with a plurality of hanging positions along the length direction of the back frame, and the hanging ring is detachably mounted on any of the hanging positions.

6. A method for using the transport rack according to claim 5, characterized in that: First, the LED module is installed on the back frame so that each back frame forms a display unit, and then the back frame is installed on the load-bearing surface of the transport vehicle, and then the fence is installed on the transport vehicle and connected and fixed with the back frame; after transportation to the site, the fence is first disassembled, and then the hanging beam is installed on the upper end of the back frame, and then the hanging beam is used in conjunction with the lifting equipment to lift the first row of the back frame to the second row of the back frame. After splicing and fixing, the first and second rows of the back frames are hoisted to the upper end of the third row of the back frame for splicing and fixing, and the remaining back frames are assembled in this way until the LED display screen is completed; when disassembling, the back frames are lifted and removed from the bottom to the top and fixed to the transport vehicle, and the fence is installed and fixed after a set number of the back frames are placed and fixed on the transport vehicle.

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