Box assembly of LED display device and LED display device

Abstract

The application provides a box assembly of an LED display device and the LED display device, wherein the box assembly of the LED display device comprises a box, a rear plate and a surrounding plate surrounding the edge of the rear plate, the rear plate is provided with a mounting hole, a connecting beam is arranged in the mounting hole, the connecting beam divides the mounting hole into a plurality of hollow areas, a cover plate is detachably arranged at the mounting hole and covers the plurality of hollow areas, a positioning structure is arranged between the rear plate and the bottom of the cover plate, a locking piece is arranged between the top of the cover plate and the connecting beam, the locking piece has a locking state of locking the top of the cover plate and the connecting beam and an unlocking state of allowing the top of the cover plate to be opened relative to the rear plate, and an anti-falling mechanism is arranged between the connecting beam and the top of the cover plate and is spaced from the locking piece, and the anti-falling mechanism has an anti-falling state and a avoiding state. The technical scheme of the application effectively solves the problem that the rear plate is prone to suddenly falling from the surrounding plate in the related art.

Description

Technical Field

[0001] This invention relates to the field of LED display technology, and more specifically, to a cabinet assembly for an LED display device and an LED display device. Background Technology

[0002] In related technologies, LED display devices include a cabinet and multiple display modules disposed on the front side of the cabinet. The cabinet includes a rear panel and a surrounding panel along the edge of the rear panel. Components that provide signals and power to the display modules are housed inside the cabinet. When performing post-maintenance on the display modules or components, it is necessary to remove the screws connecting the rear panel and the surrounding panel to perform the post-maintenance operation.

[0003] However, after the screws are removed, the rear panel support becomes unreliable and is prone to suddenly falling off the panel. Summary of the Invention

[0004] The main objective of this invention is to provide a cabinet assembly for an LED display device and an LED display device in order to solve the problem in the related art that the rear panel is prone to suddenly falling off the enclosure.

[0005] To achieve the above objectives, according to one aspect of the present invention, a cabinet assembly for an LED display device is provided, comprising: a cabinet including a rear plate and a surrounding plate disposed around the edge of the rear plate, the rear plate having mounting holes, a connecting beam disposed within the mounting holes, the connecting beam dividing the mounting holes into multiple hollow areas; a cover plate detachably covering the mounting holes and obscuring the multiple hollow areas, a positioning structure being disposed between the bottom of the rear plate and the cover plate to limit displacement of the bottom of the cover plate relative to the rear plate; a locking member disposed between the top of the cover plate and the connecting beam, the locking member having a locked state that locks the top of the cover plate to the connecting beam and an unlocked state that allows the top of the cover plate to open relative to the rear plate; and an anti-detachment mechanism disposed between the connecting beam and the top of the cover plate, spaced apart from the locking member, the anti-detachment mechanism having an anti-detachment state and an avoidance state, wherein when the locking member switches from the locked state to the unlocked state, the anti-detachment mechanism is in the anti-detachment state to limit the movement distance of the top of the cover plate relative to the rear plate after it opens and detaches from the rear plate.

[0006] Furthermore, the anti-detachment mechanism includes a fixed hook disposed on the connecting beam and a movable hook movably disposed on the top of the cover plate. When the anti-detachment mechanism is in the anti-detachment state, the movable hook is in an anti-detachment position that can cooperate with the fixed hook in the opening direction of the top of the cover plate to stop the detachment. When the anti-detachment mechanism is in the avoidance state, the movable hook is in an avoidance position that can be offset from the fixed hook in the opening direction of the top of the cover plate.

[0007] Furthermore, the anti-detachment mechanism also includes a drive unit rotatably mounted on the cover plate, which drives the movable hook to swing towards or away from the fixed hook, so that the movable hook switches between the anti-detachment position and the avoidance position.

[0008] Furthermore, the driving component includes a driving handle rotatably mounted on the cover plate and a lever connected to the driving handle. The lever passes through the movable hook and engages with the movable hook to rotate the driving handle and drive the movable hook to swing through the lever.

[0009] Furthermore, the movable hook includes a first extension plate and a connecting plate disposed on the side of the first extension plate opposite to the fixed hook. The connecting plate is provided with a limiting elongated hole for the lever to pass through and to abut against the lever. The long axis of the limiting elongated hole is arranged along the swing axis of the movable hook.

[0010] Furthermore, the fixed hook includes a second extension plate and a first hook portion disposed at the end of the second extension plate opposite to the connecting beam, and the first hook portion is disposed facing the connecting beam; the movable hook includes a first extension plate and a second hook portion disposed at the end of the first extension plate opposite to the cover plate. When the movable hook is in the anti-detachment position, the second hook portion is located between the first hook portion and the connecting beam. After the top of the cover plate is opened, it can move relative to the rear plate until the second hook portion and the first hook portion stop and cooperate.

[0011] Furthermore, a connecting seat is provided on the cover plate, and the anti-detachment mechanism also includes a swing shaft provided on the connecting seat and an elastic element sleeved on the swing shaft. The movable hook is sleeved outside the swing shaft, and the elastic element applies a spring force to the movable hook in the direction of the fixed hook. When the movable hook is in the anti-detachment position, the movable hook is kept in the anti-detachment position under the action of the spring force.

[0012] Furthermore, the anti-detachment mechanism also includes a limiting plate set on the cover plate, which is located between the movable hook and the fixed hook to limit the range of motion of the movable hook.

[0013] Furthermore, the locking element includes a latch disposed on the top of the cover plate and a lock seat disposed on the connecting beam. The latch can be in a locked position inserted into the lock seat to lock the locking element, and the latch can be in an unlocked position disengaged from the lock seat to unlock the locking element. The lock seat includes a housing and a lock cylinder floatingly disposed on the housing. The lock cylinder has a retracted position located within the housing and an extended position extending out of the housing. The latch has a latch latch, and the lock cylinder has a core latch that engages with the latch latch. When the latch latch is inserted into the housing and engages with the core latch, the latch is in the locked position. When the latch latch disengages from the core latch and the housing, the latch is in the unlocked position.

[0014] Furthermore, the middle of the rear plate protrudes rearward, the connecting beam corresponds to the middle of the rear plate, and the cover plate is a plate that protrudes rearward.

[0015] Furthermore, the positioning structure includes a positioning hole and a positioning pin that can be inserted into the positioning hole, one of the positioning hole and the positioning pin is located on the rear plate, and the other of the positioning hole and the positioning pin is located on the bottom of the cover plate.

[0016] According to another aspect of the present invention, an LED display device is provided, including a housing assembly and a plurality of display modules disposed on the front side of the housing assembly, wherein the housing assembly is the housing assembly of the LED display device described above.

[0017] According to the technical solution of this invention, the cabinet assembly of an LED display device includes: a cabinet, a cover plate, a locking member, and an anti-detachment mechanism. The cabinet includes a rear plate and a surrounding plate along the edge of the rear plate. The rear plate has mounting holes, and a connecting beam is provided within the mounting holes, dividing the mounting holes into multiple open areas. The cover plate is detachably placed over the mounting holes and covers the multiple open areas. A positioning structure is provided between the bottom of the rear plate and the cover plate to limit displacement of the bottom of the cover plate relative to the rear plate, ensuring reliable support of the bottom of the cover plate by the rear plate. The locking member is located between the top of the cover plate and the connecting beam, and has a locked state that locks the top of the cover plate to the connecting beam and an unlocked state that allows the top of the cover plate to open relative to the rear plate. The anti-detachment mechanism is located between the connecting beam and the top of the cover plate, spaced apart from the locking member. The anti-detachment mechanism has an anti-detachment state and an avoidance state. Thus, when the locking member is in the locked state, the cover plate can be placed over the mounting holes, facilitating installation of the cover plate onto the rear plate. When the locking element switches from the locked state to the unlocked state, the anti-detachment mechanism is in an anti-detachment state, limiting the movement distance of the top of the cover relative to the back panel after it opens and detaches from the back panel. This keeps the top of the cover in the state after it has opened and detached from the back panel, facilitating disassembly. Simultaneously, the positioning structure's displacement-limiting effect reliably supports the bottom of the cover, preventing it from suddenly falling off. Therefore, the technical solution of this application effectively solves the problem of the back panel easily falling off the enclosure in related technologies. Furthermore, the cover can be connected to the back panel at the mounting hole through the positioning structure, locking element, and anti-detachment mechanism, eliminating the need for screws as in related technologies, resulting in a clean rear surface of the enclosure. After removing the cover from the back panel, operators can perform post-maintenance on the display module or components through multiple cutout areas, meeting post-maintenance operation needs. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 A perspective structural schematic diagram of an embodiment of the housing assembly of the LED display device according to the present invention is shown;

[0020] Figure 2 It shows Figure 1 A partial cross-sectional three-dimensional structural diagram of the cover plate of the LED display device's cabinet assembly mounted on the rear plate;

[0021] Figure 3 It shows Figure 2 Enlarged schematic diagram of point A of the cabinet assembly of the LED display device;

[0022] Figure 4 It shows Figure 1 A partial cross-sectional three-dimensional structural diagram of the top of the cover plate of the LED display device housing assembly when it is opened from the rear panel;

[0023] Figure 5 It shows Figure 4 An enlarged schematic diagram of the movable hook at point B of the LED display device's housing assembly when it is in the anti-detachment position;

[0024] Figure 6 It shows Figure 4 An enlarged schematic diagram of the movable hook at point B of the LED display device's housing assembly when it is in the avoidance position;

[0025] Figure 7 It shows Figure 4 Enlarged schematic diagram of point C of the cabinet assembly of the LED display device;

[0026] Figure 8 It shows Figure 4 An enlarged schematic diagram of point D of the cabinet assembly of the LED display device;

[0027] Figure 9 It shows Figure 1 A three-dimensional structural diagram of the LED display device's cabinet assembly when the cover plate is removed from the rear panel;

[0028] Figure 10 It shows Figure 1 A three-dimensional structural diagram of the cover plate of the cabinet assembly of the LED display device;

[0029] Figure 11 It shows Figure 10 A partial structural diagram of the cabinet assembly of the LED display device;

[0030] Figure 12 It shows Figure 10 An exploded view of a portion of the cabinet assembly of an LED display device;

[0031] Figure 13 It shows Figure 10 A top view of the cover plate of the cabinet assembly of the LED display device;

[0032] Figure 14 It shows Figure 1 An exploded view of the locking mechanism of the cabinet assembly of the LED display device;

[0033] Figure 15 A three-dimensional structural schematic diagram of an embodiment of the LED display device according to the present invention is shown.

[0034] The above figures include the following reference numerals:

[0035] 10. Box body; 11. Rear panel; 12. Enclosure panel; 13. Connecting beam; 14. Mounting hole; 141. Cutout area;

[0036] 20. Cover plate; 21. Connecting seat;

[0037] 30. Locking element; 31. Lock tongue; 32. Lock base;

[0038] 40. Anti-detachment mechanism; 41. Fixed hook; 411. Second extension plate; 412. First hook part; 42. Movable hook; 421. First extension plate; 422. Connecting plate; 423. Limiting elongated hole; 424. Second hook part; 43. Driving component; 431. Driving handle; 432. Lever; 44. Swing shaft; 45. Limiting plate; 46. Elastic component; 47. Rotating shaft; 48. Copper sleeve;

[0039] 50. Positioning structure; 51. Positioning hole; 52. Positioning post;

[0040] 61. Top beam; 62. Bottom beam. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] like Figures 1 to 9As shown, the cabinet assembly of the LED display device in this embodiment includes: a cabinet 10, a cover plate 20, a locking member 30, and an anti-detachment mechanism 40. The cabinet 10 includes a rear plate 11 and a surrounding plate 12 surrounding the edge of the rear plate 11. The rear plate 11 is provided with mounting holes 14, and a connecting beam 13 is provided in the mounting holes 14. The connecting beam 13 divides the mounting holes 14 into multiple hollow areas 141. The cover plate 20 is detachably installed on the mounting hole 14 and covers multiple cutout areas 141. A positioning structure 50 is provided between the bottom of the back plate 11 and the cover plate 20 to limit the displacement of the bottom of the cover plate 20 relative to the back plate 11. A locking member 30 is provided between the top of the cover plate 20 and the connecting beam 13. The locking member 30 has a locked state that locks the top of the cover plate 20 to the connecting beam 13 and an unlocked state that allows the top of the cover plate 20 to open relative to the back plate 11. An anti-detachment mechanism 40 is provided between the connecting beam 13 and the top of the cover plate 20 and is spaced apart from the locking member 30. The anti-detachment mechanism 40 has an anti-detachment state and an avoidance state. When the locking member 30 switches from the locked state to the unlocked state, the anti-detachment mechanism 40 is in the anti-detachment state to limit the movement distance of the top of the cover plate 20 relative to the back plate 11 after it opens and detaches from the back plate 11.

[0043] In this embodiment, a positioning structure 50 is provided between the bottom of the rear plate 11 and the bottom of the cover plate 20 to limit the displacement of the bottom of the cover plate 20 relative to the rear plate 11, so that the rear plate 11 reliably supports the bottom of the cover plate 20. Thus, when the locking member 30 is in the locked state, the cover plate 20 can be placed over the mounting hole 14, facilitating the installation of the cover plate 20 onto the rear plate 11. When the locking member 30 switches from the locked state to the unlocked state, the anti-disengagement mechanism 40 is in the anti-disengagement state, limiting the movement distance of the top of the cover plate 20 relative to the rear plate 11 after it has opened and detached from the rear plate 11, ensuring that the top of the cover plate 20 remains in the state after opening and detaching from the rear plate 11, facilitating disassembly. Simultaneously, due to the displacement-limiting effect of the positioning structure 50, the rear plate 11 reliably supports the bottom of the cover plate 20, preventing the cover plate 20 from suddenly falling off the rear plate 11. Therefore, the technical solution of this embodiment effectively solves the problem of the rear plate easily falling off the enclosure in related technologies. Furthermore, the cover plate 20, positioned over the mounting hole 14, can be connected to the rear plate 11 via the positioning structure 50, locking element 30, and anti-detachment mechanism 40, eliminating the need for screws as in related technologies, thus keeping the entire rear surface of the enclosure 10 clean. Moreover, after removing the cover plate 20 from the rear plate 11, operators can perform rear maintenance on the display module or components through multiple perforated areas 141, meeting the needs of rear maintenance operations.

[0044] like Figures 1 to 9As shown, the anti-detachment mechanism 40 includes a fixed hook 41 disposed on the connecting beam 13 and a movable hook 42 movably disposed on the top of the cover plate 20. The movable hook 42 and the fixed hook 41 are simple to manufacture, facilitating reliable cooperation between the two to improve the reliability of the anti-detachment mechanism 40 in preventing the top of the cover plate 20 from opening and detaching from the rear plate 11, thus limiting its movement relative to the rear plate 11. When the anti-detachment mechanism 40 is in the anti-detachment state, the movable hook 42 is in an anti-detachment position that can cooperate with the fixed hook 41 to stop in the opening direction of the top of the cover plate 20. When the anti-detachment mechanism 40 is in the avoidance position, the movable hook 42 is in a avoidance position that is offset from the fixed hook 41 in the opening direction of the top of the cover plate 20. Thus, when the locking member 30 switches from the locked state to the unlocked state, as long as the anti-detachment mechanism 40 is in the anti-detachment state, the movable hook 42 can engage with the fixed hook 41. As the top of the cover plate 20 opens, the movable hook 42 and the fixed hook 41 can eventually hook together, thereby limiting the movable hook 42 and restricting the opening degree of the top of the cover plate 20 relative to the rear plate 11. Simultaneously, the movable hook 42 can reliably remain in the anti-detachment position. During the process of the operator installing the cover plate 20 onto the rear plate 11, the movable hook 42 is in the avoidance position, facilitating its movement to the anti-detachment position where it engages with the fixed hook 41. During the process of the operator removing the cover plate 20 from the rear plate 11, the movable hook 42 switches from the anti-detachment position to the avoidance position, facilitating the removal of the cover plate 20 from the rear plate 11.

[0045] like Figures 1 to 9 As shown, the anti-detachment mechanism 40 also includes a drive member 43 rotatably mounted on the cover plate 20. The drive member 43 drives the movable hook 42 to swing towards or away from the fixed hook 41, so that the movable hook 42 switches between the anti-detachment position and the avoidance position. In this way, the arrangement of the drive member 43 makes it easy for the operator to drive the movable hook 42, saving time and effort.

[0046] like Figures 3 to 6 and Figures 10 to 12 As shown, the driving component 43 includes a driving handle 431 rotatably mounted on the cover plate 20 and a lever 432 connected to the driving handle 431. The lever 432 passes through and abuts against the movable hook 42, causing the driving handle 431 to rotate and the lever 432 to drive the movable hook 42 to swing. The lever 432 facilitates the transmission of the driving force received by the driving handle 431 to the movable hook 42, so that the movable hook 42 can swing towards or away from the fixed hook 41.

[0047] Preferably, the lever 432 is vertically welded to the drive handle 431. In this way, the lever 432 can convert the driving force in the rotational direction of the drive handle 431 into a driving force in the swinging direction of the movable hook 42, making it easier for the drive member 43 to drive the movable hook 42 to swing.

[0048] like Figures 3 to 6 and Figures 10 to 12 As shown, the movable hook 42 includes a first extension plate 421 and a connecting plate 422 disposed on the side of the first extension plate 421 opposite to the fixed hook 41. The connecting plate 422 is provided with a limiting elongated hole 423 through which the lever 432 passes and abuts against the lever 432. The long axis of the limiting elongated hole 423 extends along the swing axis of the movable hook 42. The limiting elongated hole 423 restricts the movement range of the lever 432, and the hole wall of the limiting elongated hole 423 abuts against the outer surface of the lever 432, facilitating the lever 432 to apply a pressing force to the movable hook 42, thereby driving the movable hook 42 to swing.

[0049] like Figure 6 , Figures 10 to 12 As shown, the fixed hook 41 includes a second extension plate 411 and a first hook portion 412 disposed at the end of the second extension plate 411 facing away from the connecting beam 13. The movable hook 42 includes a first extension plate 421 and a second hook portion 424 disposed at the end of the first extension plate 421 facing away from the cover plate 20. When the locking member 30 is in the locked state, the arrangement of the first extension plate 421 and the second extension plate 411 ensures that the second hook portion 424 is a certain distance away from the first hook portion 412. When the locking member 30 moves from the locked state to the unlocked state, and the movable hook 42 is in the anti-detachment position, the second hook portion 424 is located between the first hook portion 412 and the connecting beam 13. After the top of the cover plate 20 is opened, it can move relative to the rear plate 11 until the second hook portion 424 and the first hook portion 412 stop and engage. Since the first hook portion 412 is positioned towards the connecting beam 13, it is possible to ensure that the first hook portion 412 and the second hook portion 424 can be reliably hooked together when the movable hook 42 is in the anti-detachment position.

[0050] like Figures 3 to 6 and Figures 10 to 12 As shown, a connecting seat 21 is also provided on the cover plate 20. The anti-detachment mechanism 40 also includes a swing shaft 44 disposed on the connecting seat 21 and an elastic element 46 sleeved on the swing shaft 44. The movable hook 42 is sleeved on the outside of the swing shaft 44. In this way, a movable gap is formed between the swing shaft 44 disposed on the connecting seat 21 and the cover plate 20, which facilitates the movable hook 42 to swing around the swing shaft 44, and thus facilitates the movable hook 42 to swing on the cover plate 20. The elastic element 46 applies a spring force to the movable hook 42 in the direction of the fixed hook 41. When the movable hook 42 is in the anti-detachment position, the spring force keeps the movable hook 42 in the anti-detachment position, improving the reliability of the anti-detachment effect of the anti-detachment mechanism 40. The axis of the elastic element 46 is parallel to the axis of the swing shaft 44. In this embodiment, the elastic element 46 is preferably a torsion spring. One end of the torsion spring abuts against the first extension plate 421 of the movable hook 42, and the other end of the torsion spring abuts against the cover plate 20.

[0051] like Figures 3 to 6and Figures 10 to 12 As shown, the anti-detachment mechanism 40 also includes a limiting plate 45 disposed on the cover plate 20. The limiting plate 45 is located between the movable hook 42 and the fixed hook 41 to limit the range of motion of the movable hook 42 and prevent the movable hook 42 from continuing to swing toward the fixed hook 41. In this way, the movable hook 42 can always remain in the anti-detachment position during the process of the locking member 30 switching from the locked state to the unlocked state.

[0052] Specifically, such as Figures 3 to 6 and Figures 10 to 12 As shown, there are two connecting seats 21 arranged vertically at intervals. The limiting plate 45 includes a first plate segment and a second and third plate segments connected to the two ends of the first plate segment. The second and third plate segments are both perpendicular to the first plate segment. The second plate segment is connected to one connecting seat 21, and the third plate segment is connected to the other connecting seat 21. The first plate segment limits the range of motion of the movable hook 42. The swing shaft 44 passes between the two connecting seats 21. A rotating shaft 47 is provided on the cover plate 20. A copper sleeve 48 is fitted on the rotating shaft 47. One end of the drive handle 431 is fitted outside the copper sleeve 48. The copper sleeve 48 can increase the gap between the drive handle 431 and the cover plate 20, ensuring that the drive handle 431 can rotate freely around the rotating shaft 47.

[0053] like Figure 7 and Figure 14 As shown, the locking element 30 includes a latch 31 disposed on the top of the cover plate 20 and a lock seat 32 disposed on the connecting beam 13. The latch 31 can be in a locked position inserted into the lock seat 32, so that the locking element 30 is in a locked state. The latch 31 can be in an unlocked position disengaged from the lock seat 32, so that the locking element 30 is in an unlocked state. The lock seat 32 includes a housing and a lock cylinder floatingly disposed in the housing. The lock cylinder has a retracted position located inside the housing and an extended position extending out of the housing. The latch 31 has a latch, and the lock cylinder has a core latch that engages with the latch. When the latch is inserted into the housing and engages with the core latch, the latch 31 is in the locked position. When the latch is disengaged from the core latch and the housing, the latch 31 is in the unlocked position. Pressing the rear side of the latch corresponding to the position of the cover plate 20 can drive the latch to move between the locked position and the unlocked position.

[0054] Specifically, the outer casing is equipped with a return spring that allows the lock cylinder to float. Pressing the latch into the outer casing and engaging with the lock cylinder, then releasing the latch, causes the latch to move backward a certain distance under the elastic return force of the return spring, stopping at the locked position. Pressing the latch again causes it to move forward a certain distance and then release; under the elastic return force of the return spring, the latch continues to move backward and disengages from the lock cylinder and outer casing, ending at the unlocked position. Thus, when the latch is in the locked position, a secure engagement is achieved, allowing the cover plate 20 to be installed on the rear plate 11. Pressing the rear cover at the position corresponding to the latch automatically moves the latch from the locked position to the unlocked position, allowing the top of the cover plate 20 to be opened from the rear plate 11.

[0055] In this embodiment, the locking element 30 is preferably a press-locking buckle with product model DL-1 manufactured by Huazhan Plastic Products (Shenzhen) Co., Ltd.

[0056] like Figure 1 , Figure 9 and Figure 13 As shown, the LED display device of this embodiment includes a cabinet assembly and multiple display modules disposed on the front side of the cabinet assembly. To facilitate the removal of the display modules or components directly from the rear side of the cabinet 10 during post-maintenance, the aforementioned multiple cutout areas 141 are provided in this embodiment. This allows the display modules or components to pass directly through the cutout areas 141 from the front side of the cabinet 10 to the rear side of the cabinet 10, facilitating the removal of the display modules or components directly from the rear side of the cabinet 10 for post-maintenance operations.

[0057] like Figure 1 , Figure 9 and Figure 13 As shown, in order to ensure that the area of ​​the cutout region 141 can accommodate the display module or components passing through from the front to the rear of the housing 10, the rear plate 11 in this embodiment protrudes rearward from its center, the connecting beam 13 corresponds to the center of the rear plate 11, and the cover plate 20 is a plate that protrudes rearward. Thus, compared to the rear plate 11 being a flat plate, the area of ​​the cutout region 141 is expanded, sufficiently accommodating the display module or components passing through from the front to the rear of the housing 10.

[0058] like Figure 4 and Figure 8As shown, the positioning structure 50 includes a positioning hole 51 and a positioning post 52 that can be inserted into the positioning hole 51. The positioning hole 51 is located on the rear plate 11, and the positioning post 52 is located on the bottom of the cover plate 20. In this way, the positioning post 52 and the positioning hole 51 are positioned and engaged, which on the one hand allows the cover plate 20 to be quickly installed into the mounting hole 14, improving the efficiency of installing the cover plate 20 on the rear plate 11. On the other hand, it can limit the displacement of the bottom of the cover plate 20 relative to the rear plate 11, so as to ensure that the rear plate 11 can reliably support the cover plate 20. Furthermore, when the operator removes the cover plate 20 from the rear plate 11, the movable hook 42 is first switched from the anti-disengagement position to the avoidance position, and then the cover plate 20 is moved upward to disengage the positioning hole 51 from the positioning post 52, so that the cover plate 20 can be removed from the rear plate 11.

[0059] In an embodiment not shown in the figure, the positioning post is disposed on the rear plate, and the positioning hole is disposed on the bottom of the cover plate.

[0060] This application also provides an LED display device, such as... Figure 15 As shown, the LED display device of this embodiment includes a cabinet assembly and a plurality of display modules (not shown in the figure) disposed on the front side of the cabinet assembly. The cabinet assembly is the cabinet assembly of the LED display device described above. Since the cabinet assembly of the LED display device described above can solve the problem of the rear panel easily falling off the enclosure in the related art, the LED display device having this cabinet assembly can solve the same technical problem.

[0061] like Figure 2 , Figure 7 and Figure 15 As shown, in this embodiment, there are eight cabinet components. The LED display device also includes a top beam 61 and a bottom beam 62 arranged vertically. The eight cabinet components are sequentially spliced ​​into two rows between the top beam 61 and the bottom beam 62, with four cabinet components in each row. In this way, the spliced ​​LED display device can form a video wall. Since the cover plate 20 is placed at the mounting hole 14 and can be connected to the back plate 11 through the positioning structure 50, locking member 30 and anti-detachment mechanism 40, there is no need to use screws as in related technologies. This makes the LED display device clean and tidy in appearance, without exposed cables, and easy to disassemble and assemble, and can be used directly as a decorative wall.

[0062] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cabinet assembly for an LED display device, characterized in that, include: The box body (10) includes a back plate (11) and a surrounding plate (12) surrounding the edge of the back plate (11). The back plate (11) is provided with mounting holes (14). A connecting beam (13) is provided in the mounting holes (14). The connecting beam (13) divides the mounting holes (14) into multiple hollow areas (141). A cover plate (20) is detachably installed over the mounting hole (14) and covers multiple hollow areas (141). A positioning structure (50) is provided between the bottom of the back plate (11) and the bottom of the cover plate (20) to limit the displacement of the bottom of the cover plate (20) relative to the back plate (11). A locking element (30) is disposed between the top of the cover plate (20) and the connecting beam (13). The locking element (30) has a locked state that locks the top of the cover plate (20) and the connecting beam (13) and an unlocked state that allows the top of the cover plate (20) to open relative to the rear plate (11). An anti-detachment mechanism (40) is disposed between the top of the connecting beam (13) and the cover plate (20), and spaced apart from the locking member (30). The anti-detachment mechanism (40) has an anti-detachment state and an avoidance state. When the locking member (30) switches from the locked state to the unlocked state, the anti-disengagement mechanism (40) is in the anti-disengagement state to limit the movement distance of the cover plate (20) relative to the rear plate (11) after the top of the cover plate (20) is opened and disengaged from the rear plate (11); The anti-detachment mechanism (40) includes a fixed hook (41) disposed on the connecting beam (13) and a movable hook (42) movably disposed on the top of the cover plate (20). When the anti-detachment mechanism (40) is in the anti-detachment state, the movable hook (42) is in an anti-detachment position that can cooperate with the fixed hook (41) in the opening direction of the top of the cover plate (20). When the anti-detachment mechanism (40) is in the avoidance state, the movable hook (42) is in an avoidance position that can be offset from the fixed hook (41) in the opening direction of the top of the cover plate (20).

2. The cabinet assembly of the LED display device according to claim 1, characterized in that, The anti-detachment mechanism (40) further includes a drive member (43) rotatably disposed on the cover plate (20), the drive member (43) driving the movable hook (42) to swing toward the fixed hook (41) or away from the fixed hook (41) so that the movable hook (42) switches between the anti-detachment position and the avoidance position.

3. The cabinet assembly of the LED display device according to claim 2, characterized in that, The driving component (43) includes a driving handle (431) rotatably disposed on the cover plate (20) and a lever (432) connected to the driving handle (431). The lever (432) passes through the movable hook (42) and abuts against the movable hook (42) to make the driving handle (431) rotate and drive the movable hook (42) to swing through the lever (432).

4. The cabinet assembly of the LED display device according to claim 3, characterized in that, The movable hook (42) includes a first extension plate (421) and a connecting plate (422) disposed on the side of the first extension plate (421) away from the fixed hook (41). The connecting plate (422) is provided with a limiting elongated hole (423) through which the lever (432) passes and abuts against the lever (432). The long axis of the limiting elongated hole (423) is arranged along the swing axis of the movable hook (42).

5. The cabinet assembly of the LED display device according to claim 1, characterized in that, The fixing hook (41) includes a second extension plate (411) and a first hook portion (412) disposed at the end of the second extension plate (411) away from the connecting beam (13), and the first hook portion (412) is disposed toward the connecting beam (13); The movable hook (42) includes a first extension plate (421) and a second hook (424) disposed at the end of the first extension plate (421) away from the cover plate (20). When the movable hook (42) is in the anti-detachment position, the second hook (424) is located between the first hook (422) and the connecting beam (13). After the top of the cover plate (20) is opened, it can move relative to the rear plate (11) until the second hook (424) and the first hook (422) stop and cooperate.

6. The cabinet assembly of the LED display device according to claim 1, characterized in that, The cover plate (20) is also provided with a connecting seat (21). The anti-detachment mechanism (40) also includes a swing shaft (44) provided on the connecting seat (21) and an elastic element (46) sleeved on the swing shaft (44). The movable hook (42) is sleeved outside the swing shaft (44). The elastic element (46) applies a spring force to the movable hook (42) in the direction of the fixed hook (41). When the movable hook (42) is in the anti-detachment position, the movable hook (42) is kept in the anti-detachment position under the action of the spring force.

7. The cabinet assembly of the LED display device according to claim 1, characterized in that, The anti-detachment mechanism (40) also includes a limiting plate (45) disposed on the cover plate (20), the limiting plate (45) being located between the movable hook (42) and the fixed hook (41) to limit the range of motion of the movable hook (42).

8. The cabinet assembly of the LED display device according to claim 1, characterized in that, The locking member (30) includes a latch (31) disposed on the top of the cover plate (20) and a lock seat (32) disposed on the connecting beam (13). The latch (31) can be in a locked position inserted into the lock seat (32) so that the locking member (30) is in the locked state. The latch (31) can also be in an unlocked position disengaged from the lock seat (32) so that the locking member (30) is in the unlocked state. The lock base (32) includes a housing and a lock cylinder that is floatingly disposed in the housing. The lock cylinder has a retracted position located inside the housing and an extended position extending out of the housing. The bolt (31) has a latch, and the lock cylinder has a core latch that engages with the latch. When the latch is inserted into the housing and engages with the core latch, the bolt (31) is in the locked position. When the latch is disengaged from the core latch and the housing, the bolt (31) is in the unlocked position.

9. The cabinet assembly of the LED display device according to claim 1, characterized in that, The rear plate (11) is provided with a rearward protrusion in the middle, the connecting beam (13) corresponds to the middle of the rear plate (11), and the cover plate (20) is a plate body that protrudes rearward.

10. The cabinet assembly of the LED display device according to claim 1, characterized in that, The positioning structure (50) includes a positioning hole (51) and a positioning post (52) that can be inserted into the positioning hole (51). One of the positioning hole (51) and the positioning post (52) is disposed on the rear plate (11), and the other of the positioning hole (51) and the positioning post (52) is disposed on the bottom of the cover plate (20).

11. An LED display device, comprising a housing assembly and a plurality of display modules disposed on the front side of the housing assembly, characterized in that, The housing assembly is the housing assembly of the LED display device according to any one of claims 1 to 10.

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