LED display screen convenient to disassemble and disassembling method

Abstract

The invention relates to an LED display screen convenient to disassemble and a disassembling method, and belongs to the technical field of LED display screens, the LED display screen comprises a magnetic attraction connection box body and an LED module, the two sides of the box body are each provided with a lock hole, a locking device is fixedly installed on the back face of the LED module, the locking device comprises a box body, a first gear is rotationally arranged in the box body, the first gear is connected with a handle operation assembly, and the handle operation assembly is connected with the box body. The upper side and the lower side of the first gear are each provided with a transversely-arranged lock rod, the lock rods are meshed with the first gear, the two lock rods synchronously move in the opposite directions, and the lock rods are inserted into the corresponding lock holes. The first gear is driven to rotate through the handle operation assembly, the lock rods on the upper side and the lower side can be driven to synchronously and reversely move, the lock rods are inserted into the lock holes of the box body, mechanical locking is formed, the connection stability of the LED module and the box body is improved, the splicing display effect of the LED display screen is guaranteed, meanwhile, the operation mode of the locking device is simpler, time consumed in the disassembly and assembly process can be shortened, and the assembly efficiency is improved. The maintenance efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of LED display technology, and in particular to an easy-to-disassemble LED display and a disassembly method. Background Technology

[0002] LED displays are direct-view display systems composed of a large number of semiconductor light-emitting diodes (LEDs). By controlling the current and grayscale of the red, green, and blue (RGB) primary color LEDs, they can mix the full spectrum of colors and then splice the pixel arrays into a screen of any size to achieve dynamic display of text, graphics, and video.

[0003] LED displays typically consist of a cabinet and LED modules. They are quickly connected by installing magnets on the cabinet and modules respectively. When an LED module fails, it can be quickly replaced. For LED displays that require frequent disassembly and assembly, screws or clips are also used for fixation.

[0004] Existing LED displays that use magnets for connection allow for quick replacement of LED modules, but the modules are not securely installed and are prone to falling off. Adding screws for fixing makes disassembly very cumbersome and increases maintenance time. While adding snap-fit ​​connections to the magnetic connection reduces maintenance time compared to screw connections, the LED modules still shift relative to the cabinet, resulting in poor display quality. Furthermore, all of the above connection methods allow for rear-side maintenance only, not front-side maintenance, which is inconvenient. Summary of the Invention

[0005] To address the technical problems of existing LED displays that add mechanical connections to magnetic connections, which result in a cumbersome disassembly process, lack of front-end maintenance, and poor maintenance convenience, this invention provides an easy-to-disassemble LED display and a disassembly method.

[0006] The technical solution of this invention is as follows: This invention provides an easily disassembled LED display screen, comprising a housing and LED modules connected by magnetic attraction. A lock hole is provided on each side of the housing. A locking device is fixedly installed on the back of the LED module. The locking device includes a housing with a first gear rotatably mounted inside. The first gear is connected to a handle operating component. A horizontally arranged locking rod is provided on each of the upper and lower sides of the first gear, with teeth meshing with the first gear. The two locking rods move synchronously in opposite directions and are inserted into their corresponding lock holes. The magnetic connection provides initial positioning of the housing and LED modules. With the locking device, the handle operating component drives the first gear to rotate, causing the locking rods on both sides to move synchronously in opposite directions, inserting them into the lock holes of the housing, forming a mechanical locking structure. This improves the stability of the connection between the LED module and the housing, preventing the module from falling off or shifting during use, ensuring the assembly and display effect of the LED display screen. Furthermore, the locking device is simpler to operate than screw connections, reducing the time spent on module assembly and disassembly and improving maintenance efficiency.

[0007] Preferably, the housing is detachably connected to a cover plate, and the handle operating component is movably mounted on the cover plate. The cover plate is rotatably connected to a motor operating component, which is located inside the housing. The handle operating component drives the first gear to rotate around an axis via the motor operating component. The detachable connection structure between the housing and the cover plate facilitates the inspection and maintenance of components such as gears and locking rods inside the locking device, reducing the difficulty of later maintenance. The coordinated setting of the handle operating component and the motor operating component allows the first gear to rotate through two different driving methods, realizing a dual manual and automatic control mode for the locking device, adapting to the operational needs of different scenarios, improving the flexibility and convenience of the device. Furthermore, the motor operating component is built into the housing, which can effectively prevent the intrusion of external dust, moisture, and other impurities, ensuring the stability and service life of the component.

[0008] Preferably, the cover plate has a mounting hole, and a hollow rotating shaft is rotatably connected to the front side of the cover plate. The handle operation assembly includes a second handle, which is fixedly connected to a connecting shaft. The connecting shaft is inserted into the mounting hole and the rotating shaft. A first slot is formed along the axial direction on the inner wall of the mounting hole, and a second slot is formed along the axial direction on the rotating shaft. A first locking block and a second locking block are fixedly provided on the connecting shaft. The second locking block is located in front of the first locking block. The first locking block is slidably connected to the first slot, and the second locking block is slidably connected to the second slot. A fifth gear for driving the first gear is fixedly provided at the front end of the rotating shaft. The connecting shaft slides with the first slot of the mounting hole and the second slot of the rotating shaft through the first and second locking blocks, respectively, which enables the connecting shaft to slide axially and rotate in the circumferential direction. Pulling the second handle can drive the connecting shaft to move axially, and rotating the second handle can drive the fifth gear to rotate through the rotating shaft, thereby driving the first gear and realizing the extension and retraction control of the locking rod.

[0009] Preferably, the length of the second slot is not less than the length of the first slot, the two ends of the second slot are sealed, and the rear end of the first slot is open. Sealing the two ends of the second slot limits the movement of the second locking block, preventing the connecting shaft from disengaging from the rotating shaft. The open rear end of the first slot facilitates the disengagement of the first locking block from the cover plate, and facilitates the release of the second handle lock. Combined with the setting that the length of the second slot is not less than the length of the first slot, this ensures that the second locking block always maintains a mating state with the second slot during the sliding process of the connecting shaft, guaranteeing the stability of power transmission and improving the operational reliability of the handle operating components.

[0010] Preferably, the motor operating component includes a motor, with a fourth gear fixedly connected to the rear end of the motor. The fourth gear meshes with a fifth gear. A third gear is fixedly connected to the output end of the motor, and a second gear is fixedly connected to the back of the first gear. The second gear meshes with the third gear. The motor output end, through the meshing of the third gear with the second gear on the back of the first gear, can directly drive the first gear to rotate, realizing the automatic extension and retraction of the locking rod. The fourth gear at the rear end of the motor meshes with the fifth gear at the front end of the rotating shaft, forming a linkage structure. This allows the power transmission paths for manual and automatic operation to be independent yet coordinated, avoiding interference between the two operating modes and ensuring smooth operation of the device. The gear meshing transmission method features high transmission accuracy and low power loss, enabling precise control of the locking rod's travel and ensuring accurate alignment between the locking rod and the lock hole, further improving the working stability of the locking device.

[0011] Preferably, the enclosure includes a frame body, with several iron plates fixed circumferentially to the front surface of the frame body; several magnetic plates are fixed circumferentially to the back of the LED module, and a first handle is installed on the back of the LED module. The iron plates circumferentially of the frame body and the magnetic plates on the back of the LED module are correspondingly arranged, which enables the enclosure and the LED module to be evenly stressed during magnetic connection, improving the stability of initial positioning and avoiding deformation caused by excessive local stress on the module; the first handle on the back of the LED module provides a force point for disassembly and assembly, making it easy for operators to quickly grasp the module during maintenance, improving the convenience of disassembly and assembly operations and reducing manual labor intensity.

[0012] Preferably, the locking bar has a guide groove extending along its length, and a guide block is fixedly mounted on the housing, inserted into the corresponding guide groove of the locking bar. The guide groove on the locking bar and the guide block on the housing slide against each other, limiting the movement direction of the locking bar and ensuring that the locking bar always extends and retracts horizontally under gear drive. This prevents the locking bar from shifting or jamming during movement, ensuring smooth engagement and disengagement between the locking bar and the locking hole in the housing, and improving the smoothness and reliability of the locking device.

[0013] A disassembly method includes: when manually unlocking from the rear, pulling the connecting shaft outwards separates the first locking block from the first locking slot; a second handle drives the rotating shaft to rotate around the shaft via the connecting shaft, thereby causing the entire motor operating component to rotate around the shaft; the motor operating component drives the first gear to rotate around the shaft, releasing the connection between the locking rod and the lock hole; and then, by holding the first handle on the back of the LED module, the LED module can be removed. This manual unlocking method for rear-side disassembly eliminates the need for additional power tools; the locking rod and lock hole can be separated simply by pulling and rotating the second handle. The operation is simple and easy to understand, adaptable to maintenance needs in special scenarios such as no power supply or motor failure. The separation of the first locking block from the first locking slot allows the rotating shaft to drive the entire motor operating component to rotate, avoiding interference with the motor component during manual operation and ensuring a smooth unlocking process. Combined with the first handle on the back of the LED module, operators can quickly complete the module disassembly, further improving the convenience of rear-side maintenance.

[0014] Preferably, when disassembling from the rear using an automatic unlocking method, the first locking block is inserted into the first slot, the second handle is locked, and the controller starts the motor. The motor's output drives the third gear to rotate around the axis, which in turn drives the first gear to rotate around the axis, releasing the connection between the locking rod and the lock hole. Holding the first handle on the back of the LED module, the LED module can be removed. This automatic unlocking rear disassembly method allows the locking rod to retract simply by starting the motor with the controller, releasing the lock without requiring manual rotation of the handle, reducing operator workload and improving maintenance efficiency. The first locking block, inserted in the first slot, locks the second handle, preventing accidental rotation during automatic operation and ensuring the safety and stability of the automatic unlocking process. Combined with the force applied by the first handle, rear disassembly of the module can be completed quickly.

[0015] Preferably, when disassembling from the front using the automatic unlocking method, the first locking block is inserted into the first locking slot, the second handle is locked, the screen suction device is installed on the LED module, and the controller starts the motor. The motor's output drives the third gear to rotate around the axis, which in turn drives the first gear to rotate around the axis, releasing the connection between the locking rod and the locking hole. The LED module is then removed by holding the screen suction device. This automatic unlocking method for front-side disassembly breaks through the limitation of traditional LED modules that can only be maintained from the rear. By connecting the screen suction device to the front of the LED module, and in conjunction with the motor-driven automatic unlocking structure, the front disassembly of the module can be achieved without additional adjustments to the installation position of the display screen. This method is suitable for scenarios with limited rear space, such as wall-mounted displays, and greatly improves the flexibility and convenience of maintenance. The locking effect of the first locking block on the second handle can effectively prevent accidental operation of the handle during the automatic unlocking process, ensuring the stability of the unlocking process. The screen suction device provides a reliable force point for front-side disassembly, ensuring that the module can be smoothly and quickly detached from the cabinet.

[0016] As can be seen from the above technical solutions, the advantages of the present invention are: 1. Based on the magnetic connection, the initial positioning of the cabinet and the LED module is achieved. With the help of the locking device, the first gear is driven to rotate by the handle operation component, which can drive the locking rods on the upper and lower sides to move synchronously in opposite directions. The locking rods are inserted into the lock holes of the cabinet to form a mechanical locking structure, which improves the stability of the connection between the LED module and the cabinet, prevents the module from falling off or relative displacement during use, and ensures the assembly and display effect of the LED display screen. At the same time, the operation of the locking device is simpler than the screw connection, which can shorten the time spent on module disassembly and assembly and improve maintenance efficiency.

[0017] 2. Through the coordinated setup of the handle operation component and the motor operation component, the first gear can be driven to rotate through two different drive methods, realizing the manual and automatic dual control modes of the locking device. This adapts to the operational needs of different scenarios, improves the flexibility and convenience of the device, and the motor operation component is built into the box, which can effectively prevent the intrusion of external dust, moisture and other impurities, ensuring the stability and service life of the component operation.

[0018] 3. The disassembly method combines manual and automatic modes, adapting to maintenance needs in multiple scenarios, including front and rear, greatly improving flexibility and convenience. Manual unlocking requires no additional tools; simply pull or turn the handle to unlock, adapting to scenarios without power or motor failure. Operation is simple and there is no interference from parts. Automatic unlocking uses the controller to start the motor for precise unlocking, eliminating the need for manual force and reducing labor intensity. At the same time, locking the second handle prevents accidental operation and ensures safety. The freedom to choose between front and rear disassembly can meet the needs of different scenarios. Attached Figure Description

[0019] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an easily detachable LED display screen according to one or more embodiments of the present invention; Figure 2 This is a structural schematic diagram of the housing according to one or more embodiments of the present invention; Figure 3 This is a schematic diagram of the structure of an LED module according to one or more embodiments of the present invention; Figure 4This is a schematic diagram of the internal structure of the locking device according to one or more embodiments of the present invention; Figure 5 This is a schematic diagram of the structure of the handle operation component, motor operation component, and first gear according to one or more embodiments of the present invention. Figure 6 This is a schematic diagram of the cover plate according to one or more embodiments of the present invention; Figure 7 This is a schematic diagram of the handle operation assembly according to one or more embodiments of the present invention; Figure 8 This is a schematic diagram of the controller according to one or more embodiments of the present invention; The components represented by the various reference numerals in the diagram are: 1. Box body; 11. Frame body; 12. Iron sheet; 13. Lock hole; 2. LED module; 21. Magnetic suction piece; 22. First handle; 3. Locking device; 31. Box body; 311. Guide block; 32. Cover plate; 321. Mounting hole; 322. First slot; 323. Bracket; 33. Motor operating assembly; 331. Motor; 332. Third gear; 333. Fourth gear; 334. Bearing; 34. Handle operating assembly; 341. Second handle; 342. Connecting shaft; 343. First locking block; 344. Second locking block; 345. Rotating shaft; 346. Second slot; 347. Fifth gear; 35. Locking rod; 351. Tooth; 352. Guide groove; 36. First gear; 37. Second gear; 4. Controller; 41. Indicator light; 42. Control button. Detailed Implementation

[0021] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0022] Example 1 In a typical embodiment of the present invention, such as Figures 1-8As shown, an easy-to-disassemble LED display screen is proposed, including: a housing 1, an LED module 2, and a locking device 3. The housing 1 and the LED module 2 are connected by magnetic attraction. The locking device 3 is fixedly installed on the back of the LED module 2. A lock hole 13 is opened on each side of the housing 1. The locking device 3 includes two horizontally arranged locking rods 35. The two locking rods 35 are arranged vertically opposite each other and move synchronously in opposite directions. The locking rods 35 are inserted into the corresponding lock holes 13, thereby realizing the mechanical connection between the LED module 2 and the housing 1, so as to improve the connection between the LED module 2 and the housing 1.

[0023] like Figure 2 As shown, the box 1 includes a frame body 11, iron sheets 12 and lock holes 13. The frame body 11 is a rectangular frame structure. Several iron sheets 12 are pasted and fixed on the front surface of the frame body 11 along its circumference. A lock hole 13 is opened on the inner wall of the left and right sides of the frame body 11, and the two lock holes 13 are at different heights.

[0024] like Figure 3 As shown, several magnetic pieces 21 are attached and fixed to the back of the LED module 2 along its circumference. The number of magnetic pieces 21 is the same as the vertical number of the iron piece 12 and they correspond one-to-one, so as to be used for magnetic connection between the LED module 2 and the housing 1. A first handle 22 is also installed on the back of the LED module 2. When the LED module 2 is inspected from the rear, the first handle 22 can be used to push the LED module 2 to separate it from the housing 1.

[0025] like Figure 4 As shown, the locking device 3 includes a housing 31, which is fixedly mounted on the back of the LED module 2. A first gear 36 is rotatably mounted inside the housing 31. Two locking rods 35 are disposed opposite each other on the upper and lower sides of the first gear 36 and are both engaged with the first gear 36. A handle operating assembly 34 is rotatably mounted on the housing 31. The handle operating assembly 34 is used to drive the first gear 36 to rotate around an axis, thereby driving the two locking rods 35 to move synchronously in opposite directions through the first gear 36, thereby controlling the rapid connection or separation between the locking rods 35 and the lock hole 13.

[0026] Specifically, the locking rod 35 is provided with teeth 351, which mesh with the first gear 36 to drive the locking rod 35; the locking rod 35 is also provided with a guide groove 352, which extends along the length of the locking rod 35; a guide block 311 is fixedly provided on the housing 31, which is inserted into the guide groove 352 corresponding to the locking rod 35, and the guide block 311 is slidably connected to the guide groove 352. Through the cooperation between the guide block 311 and the guide groove 352, the rotation of the locking rod 35 around the axis can be effectively restricted, so that the locking rod 35 can only move laterally and reciprocally without deflection, thus ensuring effective meshing between the locking rod 35 and the first gear 36.

[0027] The back of the box 31 has an opening, and a cover plate 32 is detachably installed at the opening of the box 31 by bolts to cover the opening of the box 31. The handle operation component 34 is movably installed on the cover plate 32. The cover plate 32 is also rotatably connected to the motor operation component 33, which is located inside the box 31. The handle operation component 34 drives the first gear 36 to rotate around the axis through the motor operation component 33.

[0028] In this embodiment, the handle operating component 34 can be pulled out along the axial direction and rotate around the axis. The axis of the motor operating component 33 is parallel to the axis of the handle operating component 34. The motor operating component 33, the handle operating component 34, and the first gear 36 are all meshed through gears. When the handle operating component 34 is pulled outward, it can release the lock between itself and the cover plate 32. The handle operating component 34 can drive the motor operating component 33 to rotate around the axis, thereby driving the first gear 36 to rotate around the axis. When the handle operating component 34 is pushed inward to lock, the motor operating component 33 does not rotate around the axis. The motor operating component 33 outputs torque to drive the first gear 36 to rotate around the axis. Thus, manual and automatic operation modes can be realized as needed to meet the needs of different disassembly and assembly work. That is, manual or automatic operation can be used when disassembling from the rear, and automatic operation of the motor operating component 33 is used when disassembling from the front.

[0029] like Figure 5 , Figure 6 and Figure 7As shown, the cover plate 32 has a mounting hole 321, and the handle operating assembly 34 is movably installed in the mounting hole 321. Specifically, the handle operating assembly 34 includes a second handle 341, a connecting shaft 342, a first locking block 343, a second locking block 344, a rotating shaft 345, a second slot 346, and a fifth gear 347. The second handle 341 is fixedly connected to the connecting shaft 342, which is inserted into the mounting hole 321. The inner wall of the mounting hole 321 has a first slot 322 along its axial direction, and the outer wall of the connecting shaft 342 has a first locking block 343 fixedly installed. The first locking block 343 is slidably connected to the first slot 322. When the first locking block 343 is inserted into the first slot 322, it can restrict the second handle 341. When the second handle 341 is pulled outward to separate the first locking block 343 from the first locking groove 322, the second handle 341 can rotate around the axis; the connecting shaft 342 is a stepped shaft structure, and a second locking block 344 is also fixedly provided on the connecting shaft 342. The second locking block 344 is located in front of the first locking block 343. The rotating shaft 345 is a hollow structure. The rotating shaft 345 is rotatably set in front of the cover plate 32, and the rotating shaft 345 is coaxially arranged with the connecting shaft 342. The part of the connecting shaft 342 with the second locking block 344 is inserted into the rotating shaft 345. A second locking groove 346 is opened along its axial direction on the rotating shaft 345. The second locking block 344 and the second locking groove 346 are slidably connected. The fifth gear 347 is fixedly installed at the front end of the rotating shaft 345.

[0030] The length of the second slot 346 is not less than the length of the first slot 322. The two ends of the second slot 346 are sealed, and the rear end of the first slot 322 is open, so that the second block 344 is always located in the second slot 346. Specifically, when it is necessary to unlock the second handle 341, the connecting shaft 342 is pulled outward, so that the first block 343 is separated from the first slot 322. At this time, the second handle 341 can drive the connecting shaft 342 to rotate around the shaft, and the second block 344 is located in the second slot 346. The connecting shaft 342 can drive the rotating shaft 345 to rotate around the shaft synchronously, thereby driving the fifth gear 347 to rotate around the shaft. When it is necessary to lock the second handle 341, the connecting shaft 342 is pushed inward, so that the first block 343 is inserted into the first slot 322. At this time, the second handle 341 is locked, the second block 344 is located in the second slot 346, and the connecting shaft 342 can restrict the rotation of the rotating shaft 345 around the shaft.

[0031] A bracket 323 is fixedly mounted on the cover plate 32. The motor operating component 33 is rotatably mounted on the bracket 323 via a bearing 334. The motor operating component 33 includes a motor 331, a third gear 332, and a fourth gear 333. The rear end of the motor 331 is fixedly connected to the fourth gear 333. The fourth gear 333 meshes with the fifth gear 347, thereby driving the motor 331 to rotate around its axis via the handle operating component 34. The front end (i.e., the output end) of the motor 331 is fixedly connected to the third gear 332. A second gear 37 is fixedly connected to the back of the first gear 36. The second gear 37 is coaxially arranged with the first gear 36 and meshes with the third gear 332 to drive the first gear 36 to rotate around its axis.

[0032] Specifically, when manual unlocking is required, pulling the connecting shaft 342 outward causes the first locking block 343 to separate from the first locking slot 322. At this time, the second handle 341 can drive the connecting shaft 342 to rotate around the shaft, and the second locking block 344 is located in the second locking slot 346. The connecting shaft 342 can drive the rotating shaft 345 to rotate synchronously around the shaft, thereby driving the fifth gear 347 to rotate around the shaft. Through the meshing of the fifth gear 347 and the fourth gear 333, the motor operating assembly 33 is driven to rotate around the shaft as a whole, and then through the meshing of the third gear 332 and the second gear 37... The first gear 36 is driven to rotate around the shaft. When automatic unlocking is required, the connecting shaft 342 is no longer pulled outward, so that the first locking block 343 is inserted into the first locking slot 322. At this time, the second handle 341 is locked, the second locking block 344 is located in the second locking slot 346, the connecting shaft 342 restricts the rotation of the rotating shaft 345 around the shaft, thereby restricting the rotation of the motor operating component 33 itself around the shaft. The output end of the motor 331 drives the third gear 332 to rotate around the shaft, and then through the meshing of the third gear 332 with the second gear 37, drives the first gear 36 to rotate around the shaft.

[0033] In this embodiment, motor 331 is a torque motor. Motor 331 is connected to the power line of LED module 2. Motor 331 will lock when it encounters a certain torque. Motor 331 can be remotely controlled by controller 4. Controller 4 can send signals to the torque motor via NFC commands. Controller 4 needs to maintain a set distance of 0-4cm from motor 331 to accurately open the nearest locking device 3. Figure 8 As shown, the controller 4 includes an indicator light 41 and a control button 42 to allow the operator to observe whether the remote control was successful.

[0034] Example 2 In another typical embodiment of the present invention, a disassembly method is proposed, which uses the easily disassembled LED display screen mentioned in Embodiment 1. The disassembly method includes: When disassembly from the rear is required, manual unlocking is used. Pull the connecting shaft 342 outwards to separate the first locking block 343 from the first locking slot 322. At this time, the second handle 341 can drive the connecting shaft 342 to rotate around the shaft. The second locking block 344 is located in the second locking slot 346. The connecting shaft 342 can drive the rotating shaft 345 to rotate synchronously around the shaft, thereby driving the fifth gear 347 to rotate around the shaft. Through the meshing of the fifth gear 347 and the fourth gear 333, the entire motor operating assembly 33 is driven to rotate around the shaft, thereby... Through the meshing of the third gear 332 and the second gear 37, the first gear 36 is driven to rotate around the axis. The first gear 36, through the meshing of the teeth 351, causes the two locking rods 35 to retract into the box 31, thereby releasing the connection between the locking rods 35 and the lock hole 13. After unlocking, hold the first handle 22 on the back of the LED module 2 and push the LED module 2 forward, so that the magnetic attraction between the LED module 2 and the box 1 is separated. Finally, tilt the LED module 2 so that the LED module 2 passes through the frame body 11 and is pulled out backward. When disassembly from the rear is required, an automatic unlocking mechanism is used. At this time, the first locking block 343 is inserted into the first slot 322, the second handle 341 is locked, the second locking block 344 is located in the second slot 346, and the connecting shaft 342 restricts the rotation of the rotating shaft 345 around its axis, thereby restricting the rotation of the motor operating assembly 33 itself around its axis. The controller 4 is brought close to the locking device 3 from the rear, and the controller 4 controls the motor 331 to start. The output end of the motor 331 drives the third gear 332 to rotate around its axis, thereby... The meshing of gear 332 and second gear 37 causes first gear 36 to rotate around the axis. First gear 36 meshes with tooth 351, causing two locking rods 35 to retract into the box 31, thereby releasing the connection between locking rods 35 and lock hole 13. After unlocking, hold the first handle 22 on the back of LED module 2 and push LED module 2 forward, causing the magnetic attraction between LED module 2 and box 1 to separate. Finally, tilt LED module 2 so that LED module 2 passes through frame body 11 and is pulled out backward.

[0035] When disassembly from the front is required, an automatic unlocking method is used. At this time, the first locking block 343 is inserted into the first slot 322, the second handle 341 is locked, the second locking block 344 is located in the second slot 346, the connecting shaft 342 restricts the rotation of the rotating shaft 345 around the shaft, thereby restricting the rotation of the motor operating component 33 itself around the shaft. The screen suction device is installed on the LED module 2, and the controller 4 is brought close to the locking device 3 from the front of the LED module 2. The controller 4 is used to control the motor 331 to start. The output end of the motor 331 drives the third gear 332 to rotate around the shaft. Then, through the meshing of the third gear 332 and the second gear 37, the first gear 36 is driven to rotate around the shaft. The first gear 36, through the meshing of the tooth 351, causes the two locking rods 35 to retract into the box 31, so as to release the connection between the locking rods 35 and the lock hole 13. After unlocking is completed, hold the screen suction device and pull the LED module 2 to separate the magnetic suction between the LED module 2 and the box 1. The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An easily detachable LED display screen, comprising: The box (1) and LED module (2) are connected by magnetic attraction. The box (1) has a lock hole (13) on each side. The LED module (2) has a locking device (3) fixedly installed on the back. The locking device (3) includes a box (31). A first gear (36) is rotatably provided inside the box (31). The first gear (36) is connected to a handle operation component (34). A horizontally arranged locking rod (35) is provided on the upper and lower sides of the first gear (36). The locking rod (35) has teeth (351) on it. The teeth (351) mesh with the first gear (36). The two locking rods (35) move in opposite directions synchronously. The locking rods (35) are inserted into the corresponding lock hole (13).

2. The easily detachable LED display screen according to claim 1, characterized in that, The box (31) is detachably connected to a cover plate (32), and the handle operation component (34) is movably mounted on the cover plate (32). The cover plate (32) is rotatably connected to a motor operation component (33), which is located inside the box (31). The handle operation component (34) drives the first gear (36) to rotate around the axis through the motor operation component (33).

3. The easily detachable LED display screen according to claim 2, characterized in that, The cover plate (32) has a mounting hole (321). A hollow rotating shaft (345) is rotatably connected to the front side of the cover plate (32). The handle operation assembly (34) includes a second handle (341). The second handle (341) is fixedly connected to a connecting shaft (342). The connecting shaft (342) is inserted into the mounting hole (321) and the rotating shaft (345). A first slot (322) is formed on the inner wall of the mounting hole (321) along its axial direction. The rotating shaft (345) is formed on its axial direction along its axial direction. A second slot (346) is provided axially. A first block (343) and a second block (344) are fixedly provided on the connecting shaft (342). The second block (344) is located in front of the first block (343). The first block (343) is slidably connected to the first slot (322), and the second block (344) is slidably connected to the second slot (346). A fifth gear (347) for driving the first gear (36) is fixedly provided at the front end of the rotating shaft (345).

4. The easily detachable LED display screen according to claim 3, characterized in that, The length of the second slot (346) is not less than the length of the first slot (322), the two ends of the second slot (346) are sealed, and the rear end of the first slot (322) is open.

5. The easily detachable LED display screen according to claim 3, characterized in that, The motor operating assembly (33) includes a motor (331), a fourth gear (333) is fixedly connected to the rear end of the motor (331), the fourth gear (333) meshes with the fifth gear (347), a third gear (332) is fixedly connected to the output end of the motor (331), and a second gear (37) is fixedly connected to the back of the first gear (36), the second gear (37) meshes with the third gear (332).

6. The easily detachable LED display screen according to claim 1, characterized in that, The box (1) includes a frame body (11), and several iron pieces (12) are fixed on the front surface of the frame body (11) along its circumference; several magnetic pieces (21) are fixed on the back of the LED module (2) along its circumference, and a first handle (22) is installed on the back of the LED module (2).

7. The easily detachable LED display screen according to claim 1, characterized in that, A guide groove (352) is provided on the locking rod (35), and the guide groove (352) extends along the length direction of the locking rod (35). A guide block (311) is fixed on the box body (31), and the guide block (311) is inserted into the guide groove (352) of the corresponding locking rod (35).

8. A disassembly method, characterized in that, The LED display screen used in any one of claims 3-7 is easy to disassemble, including: when disassembling from the rear by manually unlocking, pulling the connecting shaft (342) outward, so that the first locking block (343) is separated from the first locking groove (322), the second handle (341) drives the rotating shaft (345) to rotate around the shaft through the connecting shaft (342), thereby driving the motor operating component (33) to rotate around the shaft as a whole, and driving the first gear (36) to rotate around the shaft through the motor operating component (33), releasing the connection between the locking rod (35) and the lock hole (13), and holding the first handle (22) on the back of the LED module (2) to remove the LED module (2).

9. The disassembly method according to claim 8, characterized in that, When disassembling from the rear using the automatic unlocking method, the first card block (343) is inserted into the first card slot (322), the second handle (341) is locked, the controller (4) controls the motor (331) to start, the output end of the motor (331) drives the third gear (332) to rotate around the axis, thereby driving the first gear (36) to rotate around the axis, releasing the connection between the locking rod (35) and the lock hole (13), holding the first handle (22) on the back of the LED module (2), and removing the LED module (2).

10. The disassembly method according to claim 8, characterized in that, When disassembling from the front using the automatic unlocking method, the first card block (343) is inserted into the first card slot (322), the second handle (341) is locked, the screen suction device is installed on the LED module (2), the controller (4) controls the motor (331) to start, the output end of the motor (331) drives the third gear (332) to rotate around the axis, thereby driving the first gear (36) to rotate around the axis, releasing the connection between the locking rod (35) and the lock hole (13), and the LED module (2) is removed by holding the screen suction device.

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