LED display devices

Abstract

This invention provides an LED display device comprising: a fixed frame with a receiving opening; multiple display modules detachably mounted on the front side of the fixed frame and obscuring the receiving opening; a movable frame rotatably mounted on the fixed frame and located at the receiving opening, the movable frame having an installation position within the receiving opening, a front maintenance position that flips forward and passes through the receiving opening, and a rear maintenance position that flips backward; and a control component detachably mounted on the movable frame and capable of rotating with the movable frame, the control component being able to be plugged into or detached from the multiple display modules, wherein when the movable frame is in the installation position, the control component is able to be plugged into and connected to the multiple display modules, and when the movable frame is in the front maintenance position or the rear maintenance position, the control component is detached from the multiple display modules. The technical solution of this application effectively solves the problem in related technologies where only a single part of the LED display device can be maintained, resulting in poor installation and maintenance flexibility.

Description

Technical Field

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

[0002] The LED display device in the related technology includes a frame, multiple display modules disposed on the front side of the frame, and control components disposed on the rear side of the multiple display modules. Power connection cables for external power connection and signal connection cables for external signal connection are spaced apart on the frame. In the field, the multiple display modules and control components are installed on the frame. The frame is secured to the front of the display modules with screws, then the power and signal connection cables are connected, and finally the display modules are installed on the front side of the frame. This only supports front installation and front maintenance of the display modules. Alternatively, the control components are installed on the rear side of the frame with screws behind the display modules, then the power and signal connection cables are connected. This only supports rear installation and rear maintenance of the control components.

[0003] Thus, LED display devices in related technologies cannot maintain control components during pre-maintenance and cannot maintain display modules during post-maintenance, resulting in poor installation and maintenance flexibility. Summary of the Invention

[0004] The main objective of this invention is to provide an LED display device that solves the problem in related technologies where only a single part of the LED display device can be maintained, resulting in poor installation and maintenance flexibility.

[0005] To achieve the above objectives, the present invention provides an LED display device, comprising: a fixed frame having a receiving opening; a plurality of display modules detachably mounted on the front side of the fixed frame and obscuring the receiving opening, wherein each display module can pass through the receiving opening; a movable frame rotatably mounted on the fixed frame and located at the receiving opening, the movable frame having an installation position within the receiving opening, a front maintenance position that flips forward and passes through the receiving opening, and a rear maintenance position that flips backward; and a control component detachably mounted on the movable frame and capable of rotating with the movable frame, the control component being able to be plugged into or detached from the plurality of display modules, wherein when the movable frame is in the installation position, the control component is able to be plugged into and connected to the plurality of display modules, and when the movable frame is in the front maintenance position or the rear maintenance position, the control component is detached from the plurality of display modules.

[0006] Furthermore, the movable frame is rotatably mounted on the fixed frame via a first operating member, the bottom end of the first operating member is swingably mounted on the fixed frame, and the movable frame is pivotally connected to the first operating member.

[0007] Furthermore, the first operating component includes a first operating plate, at least a portion of which is stacked on the side wall of the receiving port. The LED display device also includes a pivot that is sequentially passed through the movable frame, the first operating plate, and the fixed frame. The first operating plate is provided with a drive hole for driving the pivot to swing, and the fixed frame is provided with a limit for the swing range of the pivot.

[0008] Furthermore, the driving hole is a second long hole corresponding to the first long hole, and the projections of the long axis of the first long hole and the long axis of the second long hole on the side wall of the receiving port intersect.

[0009] Furthermore, a first pair of plugs is provided on the fixed frame, and a second pair of plugs is provided on the movable frame, which can be inserted and engaged with the first pair of plugs. The second pair of plugs is connected to the control component. The second pair of plugs has an insertion position for engaging with the first pair of plugs and a separation position for separating from the first pair of plugs. When the pivot abuts against the front end wall of the first elongated hole and the movable frame is in the installation position, the second pair of plugs is in the insertion position. When the pivot abuts against the front end wall of the first elongated hole and the movable frame is in the front maintenance position, the second pair of plugs is in the separation position. When the first operation panel drives the pivot to swing from abutting against the front end wall of the first elongated hole to abutting against the rear end wall of the first elongated hole, and the pivot drives the movable frame to swing to a rearward swing position at an angle to the rear of the fixed frame, the second pair of plugs is in the separation position, and the control component is separated from the multiple display modules.

[0010] Furthermore, multiple first locking parts are spaced apart on the rear side of the movable frame. The control component includes a circuit board detachably disposed on the rear side of the movable frame, and a control part and a power supply part detachably disposed on the circuit board. The circuit board can be plugged into or separated from multiple display modules. The circuit board is provided with a first clearance hole to avoid the first locking parts. A second locking part is provided on the control part, and a third locking part is provided on the power supply part. The LED display device also includes a latch movably disposed on the rear side of the circuit board. The latch is provided with multiple mating parts that lock and engage with the first locking part, the second locking part, and the third locking part respectively. The latch has a first locking position and a first unlocking position. When the latch is in the first locking position, the multiple mating parts lock the first locking part, the second locking part, and the third locking part. When the latch is in the first unlocking position, the multiple mating parts unlock the first locking part, the second locking part, and the third locking part.

[0011] Furthermore, the buckle switches between a first locked position and a first unlocked position along the vertical direction of the movable frame. Among the multiple mating parts, one can lock and engage with the first locking part as the first mating part, and among the multiple mating parts, one can lock and engage with the second locking part as the second mating part. In this case, both the first locking part and the second locking part are first locking hooks, and both the first mating part and the second mating part are first locking grooves, or both the first locking part and the second locking part are first locking grooves, and both the first mating part and the second mating part are first locking hooks.

[0012] Furthermore, among the multiple mating parts, the third mating part is capable of locking with the third locking part, the third locking part is a locking pin, the third mating part is a second locking groove, or the third mating part is a locking pin and the third locking part is a second locking groove.

[0013] Furthermore, the buckle includes a frame body, a connecting plate disposed on the rear surface of the frame body, and a rear flange disposed on the connecting plate. When both the first locking part and the second locking part are first locking hooks, and both the first mating part and the second mating part are first locking grooves, the first locking groove that mates with the first locking part is disposed on the frame body, and the first locking groove that mates with the second locking part is disposed on the rear flange. The hook head of the first locking hook extends upward, and the control part is plugged into and connected to the circuit board. When the buckle is switched from the first unlocking position to the first locking position, the hook head of the first locking hook is misaligned with the first locking groove to restrict the first locking hook from moving backward.

[0014] Furthermore, when the third locking part is a locking pin and the third mating part is a second locking groove, the movable frame is provided with a sliding groove for the locking pin to slide in or out. The sliding groove extends in the front-to-back direction. The second locking groove is an L-shaped groove. The first section of the L-shaped groove extends in the front-to-back direction and corresponds to the sliding groove. The second section of the L-shaped groove extends in the up-down direction. The power supply part is plugged into the circuit board. The locking pin slides into the sliding groove and the first section. When the buckle is switched from the first unlocking position to the first locking position, the locking pin slides into the second section to be restricted from moving backward along the sliding groove.

[0015] Furthermore, a second operating element is oscillatingly arranged on the movable frame. The second operating element drives the buckle to switch between a first locked position and a first unlocked position. The second operating element includes a second operating plate and a drive shaft arranged on the second operating plate. At least a portion of the second operating plate is stacked with the side wall of the movable frame. The buckle is provided with a limiting groove that can drive and cooperate with the drive shaft. The limiting groove has a slot for the drive shaft to move in or out.

[0016] Furthermore, the LED display device also includes a locking pin and a locking rod detachably mounted on the fixed frame. When the locking pin is mounted on the fixed frame and locks the movable frame, the movable frame remains in the mounting position. The locking rod is movably mounted on the fixed frame and has a second locking position and a second unlocking position. The locking rod is provided with multiple second locking hooks. The fixed frame is provided with multiple second clearance holes to avoid the multiple second locking hooks. Multiple third locking slots are provided on the rear side of the multiple display modules. The multiple second locking hooks pass through the multiple second clearance holes and are inserted into the multiple third locking slots one by one. When the locking rod is in the second unlocking position, the multiple hook heads of the multiple second locking hooks are respectively located in the multiple third locking slots. When the locking rod is in the second locking position, the multiple hook heads of the multiple second locking hooks are respectively misaligned with the multiple third locking slots to restrict the second locking hooks from moving backward.

[0017] According to the technical solution of this invention, the LED display device includes: a fixed frame, multiple display modules, a movable frame, and a control component. The fixed frame has a receiving opening. The multiple display modules are detachably mounted on the front side of the fixed frame, blocking the receiving opening, wherein each display module can pass through the receiving opening. The movable frame is flip-mounted on the fixed frame and located at the receiving opening. The movable frame has a mounting position within the receiving opening, a front maintenance position that flips forward and passes through the receiving opening, and a rear maintenance position that flips backward. The control component is detachably mounted on the movable frame and can flip with the movable frame. The control component can be plugged into or detached from the multiple display modules. Specifically, when the movable frame is in the mounting position, the control component can be plugged into the multiple display modules; when the movable frame is in the front maintenance position or the rear maintenance position, the control component is detached from the multiple display modules. In this way, the display modules can be detached from the front of the fixed frame, and vice versa, multiple display modules can be installed on the front of the fixed frame for front installation and maintenance. Furthermore, after multiple display modules are detached from the fixed frame, they no longer obstruct the receiving opening. When the movable frame is in the front maintenance position, the control components can be detached from the movable frame, and vice versa, for front installation and maintenance. On the rear side of the display modules, the control components can be detached from the movable frame, and vice versa, for rear installation and maintenance. When the movable frame is in the rear maintenance position, there is no movable frame or control components obstructing the receiving opening, allowing each display module to be moved from the front to the rear for detachment, and vice versa, multiple display modules can be installed on the front of the fixed frame for rear installation and maintenance. This allows for the maintenance of multiple parts during front or rear maintenance of the LED display device, improving installation and maintenance flexibility. Therefore, the technical solution of this application effectively solves the problem that related technologies can only maintain a single part of the LED display device, resulting in poor installation and maintenance flexibility. 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 three-dimensional structural schematic diagram of the movable frame in the installation position according to an embodiment of the LED display device of the present invention is shown;

[0020] Figure 2 It shows Figure 1 Rear view of the LED display device;

[0021] Figure 3 It shows Figure 2 A magnified view of part A of the LED display device;

[0022] Figure 4 It shows Figure 1 A three-dimensional structural diagram of the LED display device with its movable frame in the front maintenance position;

[0023] Figure 5 It shows Figure 4 A magnified view of part B of the LED display device;

[0024] Figure 6 It shows Figure 4 A magnified view of part C of the LED display device;

[0025] Figure 7 It shows Figure 4 A magnified view of part D of the LED display device;

[0026] Figure 8 It shows Figure 4 A partial perspective view of the LED display device with its mounting bracket in the first locking position;

[0027] Figure 9 It shows Figure 1 A three-dimensional structural diagram of the movable frame of the LED display device in the post-maintenance position;

[0028] Figure 10 It shows Figure 9 A partial enlarged view of point E on the LED display device;

[0029] Figure 11 It shows Figure 1 A partial perspective view of the movable frame of the LED display device in the installation position;

[0030] Figure 12 It shows Figure 9 A partial exploded view of the LED display device;

[0031] Figure 13 It shows Figure 1 A three-dimensional structural diagram of the movable frame, fastener, and control unit of the LED display device;

[0032] Figure 14 It shows Figure 13 A magnified view of a portion of the buckle at point F;

[0033] Figure 15 It shows Figure 13 A magnified view of a portion of the fastener at point G.

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

[0035] 11. Fixed frame; 111. First pivot seat; 112. First pivot shaft; 113. Second pivot seat; 114. Second clearance hole; 115. First elongated hole; 1151. Front end wall of the first elongated hole; 1152. Rear end wall of the first elongated hole;

[0036] 12. Reception opening;

[0037] 13. Movable frame; 131. Pivot; 133. Slide;

[0038] 14. Buckle; 141. Frame body; 142. Connecting upright plate; 143. Rear flange; 144. Limiting groove;

[0039] 21. First operating component; 211. First operating plate; 212. Second elongated hole;

[0040] 22. Second operating component; 221. Second operating panel; 222. Drive shaft;

[0041] 30. Display module; 31. Third lock slot;

[0042] 40. Control components; 41. Circuit board; 42. Control unit; 43. Power supply unit;

[0043] 51. The first pair of plugins; 52. The second pair of plugins;

[0044] 61. First locking part; 62. Second locking part; 63. Third locking part; 71. First mating part; 72. Second mating part; 73. Third mating part; 731. First groove section; 732. Second groove section;

[0045] 81. Locking pin; 82. Locking bar; 821. Second locking hook; 83. Safety lock. Detailed Implementation

[0046] 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.

[0047] like Figures 1 to 10As shown, the LED display device of this embodiment includes: a fixed frame 11, multiple display modules 30, a movable frame 13, and a control component 40. The fixed frame 11 is provided with a receiving opening 12. The multiple display modules 30 are detachably mounted on the front side of the fixed frame 11, obscuring the receiving opening 12. Each display module 30 can pass through the receiving opening 12. The movable frame 13 is rotatably mounted on the fixed frame 11 and located at the receiving opening 12. The movable frame 13 has an installation position within the receiving opening 12, a front maintenance position that flips forward and passes through the receiving opening 12, and a rear maintenance position that flips backward. The control component 40 is detachably mounted on the movable frame 13 and can rotate with the movable frame 13. The control component 40 can be plugged into or detached from the multiple display modules 30. When the movable frame 13 is in the installation position, the control component 40 can be plugged into the multiple display modules 30; when the movable frame 13 is in the front maintenance position or the rear maintenance position, the control component 40 is detached from the multiple display modules 30. In this embodiment, the control component 40 is disposed on the side of the active frame 13 opposite to the display module 30.

[0048] Using the technical solution of this embodiment, the LED display device includes: a fixed frame 11, multiple display modules 30, a movable frame 13, and a control component 40. The display modules 30 can be detached from the front of the fixed frame 11, and conversely, the multiple display modules 30 can be installed on the front of the fixed frame 11, thus allowing for front installation and maintenance of the display modules 30. Furthermore, when the multiple display modules 30 are detached from the fixed frame 11, they no longer obstruct the receiving opening 12. At this time, when the movable frame 13 is in the front maintenance position, the control component 40 is unobstructed above, allowing it to be detached from the movable frame 13, or conversely, installed on the movable frame 13, enabling front installation and maintenance of the control component 40.

[0049] On the rear side of the display module 30, the control component 40 can be removed from the movable frame 13, or conversely, the control component 40 can be installed on the movable frame 13 for post-installation and post-maintenance. When the movable frame 13 is in the post-maintenance position, there is no movable frame 13 or control component 40 blocking the receiving port 12. Each display module 30 can be moved from the front side of the display module 30 to the rear side of the display module 30 through the receiving port 12 for removal. Conversely, multiple display modules 30 can be installed on the front side of the fixed frame 11 for post-installation and post-maintenance.

[0050] In this way, multiple parts can be maintained during pre- or post-maintenance of the LED display device, improving the flexibility of installation and maintenance. Therefore, the technical solution of this embodiment effectively solves the problem in related technologies that can only maintain a single part of the LED display device, resulting in poor installation and maintenance flexibility.

[0051] It should be noted that the front side of the fixing frame 11 refers to the front surface of the fixing frame 11. Specifically, a plurality of first magnetic elements are provided on the front surface of the fixing frame 11, and a plurality of second magnetic elements are provided on the plurality of display modules 30 to magnetically engage with the plurality of first magnetic elements. The plurality of display modules 30 are detachably mounted on the front side of the fixing frame 11 by the magnetic engagement of the first magnetic elements with the plurality of second magnetic elements.

[0052] like Figures 1 to 10 As shown, for ease of operation, the movable frame 13 is rotatably mounted on the fixed frame 11 via the first operating member 21. The bottom end of the first operating member 21 is pivotally mounted on the fixed frame 11, and the movable frame 13 is pivotally connected to the first operating member 21. Thus, by operating the bottom end of the first operating member 21 to swing on the fixed frame 11, the movable frame 13 is driven to swing together on the fixed frame 11, and the movable frame 13 can rotate on the first operating member 21, thereby indirectly enabling the movable frame 13 to flip on the fixed frame 11.

[0053] like Figures 1 to 10 As shown, the first operating member 21 includes a first operating plate 211, at least a portion of which is stacked on the side wall of the receiving opening 12. In this way, the plate-shaped first operating member 21 reduces the space it occupies at the receiving opening 12, making the structure of the LED display device more compact.

[0054] In this embodiment, the LED display device further includes a pivot 131 sequentially passing through the movable frame 13, the first operation plate 211, and the fixed frame 11. The first operation plate 211 is provided with a drive hole for driving the pivot 131 to swing, and the fixed frame 11 is provided with a first elongated hole 115 for limiting the swing range of the pivot 131. Operating the first operation plate 211 transmits force to the pivot 131 through the drive hole, driving the pivot 131 to swing within the first elongated hole 115. The swing of the pivot 131 causes the movable frame 13 on the pivot 131 to swing together on the fixed frame 11. Since the first elongated hole 115 limits the swing range of the pivot 131, when the pivot 131 swings from the front end wall of the first elongated hole 115 to a position where it abuts against the rear end wall of the first elongated hole 115, the control component 40 on the movable frame 13 can be separated from the multiple display modules 30. The movable frame 13 then rotates around the pivot 131, allowing the movable frame 13 to flip to a rearward maintenance position. The first elongated hole 115 described above has a long axis and a short axis, wherein the length of the long axis is greater than the length of the short axis.

[0055] Specifically, the fixed frame 11 includes a fixed frame and a first pivot seat 111 disposed on the inner side wall at the bottom of the fixed frame. A first pivot shaft 112 is disposed on the first pivot seat 111. The bottom end of the first operating member 21 is sleeved on the first pivot shaft 112. The pivot shaft 131 is located above the first pivot shaft 112.

[0056] like Figures 1 to 10As shown, a first pair of plugs 51 are provided on the fixed frame 11, and a second pair of plugs 52 are provided on the movable frame 13, which can be inserted and engaged with the first pair of plugs 51. The first pair of plugs 51 can be electrically connected to other display units of the LED display device or to the external power supply line of the LED display device. The second pair of plugs 52 are connected to the control component 40, and the second pair of plugs 52 has an insertion position for engaging with the first pair of plugs 51 and a separation position for separating from the first pair of plugs 51. When the pivot 131 abuts against the front end wall 1151 of the first elongated hole, and the movable frame 13 is in the installation position, the second pair of plugs 52 on the movable frame 13 is in the insertion position. When the pivot 131 abuts against the front end wall 1151 of the first elongated hole, the movable frame 13 rotates around the pivot 131, and the movable frame 13 is in the front maintenance position, the second pair of plugs 52 on the movable frame 13 is in the separation position. When the first operating plate 211 drives the pivot 131 to swing from abutting against the front end wall 1151 of the first elongated hole to abutting against the rear end wall 1152 of the first elongated hole, and the pivot 131 drives the movable frame 13 to swing to a rearward position at an angle to the rear of the fixed frame 11, the second pair of plugs 52 on the movable frame 13 are in the separated position, and the control component 40 on the movable frame 13 is separated from the multiple display modules 30. In this way, the control component 40 can be separated from the multiple display modules 30 before the movable frame 13 is in the rear maintenance position, which facilitates the smooth flipping of the movable frame 13 to the rear maintenance position.

[0057] like Figures 9 to 11As shown, the driving hole is a second elongated hole 212 corresponding to the first elongated hole 115. The projections of the long axis of the first elongated hole 115 and the long axis of the second elongated hole 212 onto the side wall of the receiving opening 12 intersect. Thus, when the pivot 131 abuts against the front end wall 1151 of the first elongated hole, the pivot 131 can also abut against the front end wall of the second elongated hole 212. Since the projections of the long axis of the first elongated hole 115 and the long axis of the second elongated hole 212 onto the side wall of the receiving opening 12 intersect, in addition to the front end wall of the first elongated hole 115 limiting the pivot 131, the front end wall of the second elongated hole 212 also limits the pivot 131, so that the movable frame 13 can be reliably positioned in the installation position. Furthermore, during the process of rotating the movable frame 13 from the installation position to the front maintenance position, the front end wall 1151 of the first elongated hole and the front end wall of the second elongated hole 212 together limit the pivot 131, and when the safety lock 83 (see below) is in the safe position, the movable frame 13 can rotate around the pivot 131, but the movable frame 13 cannot drag the pivot 131 to move within the first elongated hole 115 and the second elongated hole 212. Similarly, when the pivot 131 abuts against the rear end wall of the first elongated hole 115, the pivot 131 can also abut against the rear end wall of the second elongated hole 212. The rear end walls of the first elongated hole 115 and the second elongated hole 212 together limit the pivot 131, so that the movable frame 13 can reliably be located in the rearward swing position. The aforementioned second elongated hole 212 has a major axis and a minor axis, the length of which is greater than the length of which is less than the length of which is greater.

[0058] In this embodiment, a safety lock 83 is slidably mounted on the first operating member 21 in the vertical direction. The safety lock 83 has a safe position that is mounted outside the fixed frame 11 and a clearance position that is detached from the fixed frame 11. The first operating member 21 is provided with a limiting post, and the safety lock 83 has a limiting elongated hole in the vertical direction. The limiting post extends into the limiting elongated hole. When the safety lock 83 slides up and down, the limiting elongated hole moves relative to the limiting post. The two ends of the limiting elongated hole in the length direction respectively engage with the limiting post, limiting the vertical sliding range of the safety lock 83, allowing the safety lock 83 to switch between the safe position and the clearance position. When the safety lock 83 is in the safe position, it is also mounted outside the fixed frame 11. Since the fixed frame 11 is fixed, the displacement of the safety lock 83 in the front-back direction is limited, thus limiting the first operating member 21 to the fixed frame 11 and preventing the first operating member 21 from swinging in the front-back direction. This allows the movable frame 13 to remain in the installed position. When the safety lock 83 is in the avoidance position, it disengages from the fixed frame 11. Without the fixed frame 11 limiting its position, the safety lock 83 swings along with the bottom end of the first operating member 21 on the fixed frame 11, thereby driving the movable frame 13 to switch between the installation position and the rearward swing position via the pivot 131. The safety lock 83 can be a grooved structure or a cylindrical structure; any structure that can limit the swing of the first operating member 21 in the front-back direction is within the scope of protection of this application.

[0059] like Figure 8 , Figures 13 to 15As shown, a plurality of first locking parts 61 are spaced apart on the rear side of the movable frame 13. The control component 40 includes a circuit board 41 detachably disposed on the rear side of the movable frame 13, and a control part 42 and a power supply part 43 detachably disposed on the circuit board 41. The circuit board 41 can be plugged into or separated from a plurality of display modules 30. The circuit board 41 is provided with a first clearance hole to avoid the first locking parts 61. The control part 42 is provided with a second locking part 62, and the power supply part 43 is provided with a third locking part 63. The LED display device also includes a latch 14 movably disposed on the rear side of the circuit board 41. The latch 14 is provided with a plurality of mating parts that lock and engage with the first locking parts 61, the second locking parts 62, and the third locking parts 63 respectively. The latch 14 has a first locking position and a first unlocking position. When the latch 14 is in the first locking position, the plurality of mating parts lock the first locking parts 61, the second locking parts 62, and the third locking parts 63. In this way, both the control unit 42 and the power supply unit 43 can be fixed to the circuit board 41 by the latch 14, preventing them from becoming loose on the circuit board 41. When the latch 14 is in the first unlocked position, multiple mating parts unlock the first locking part 61, the second locking part 62, and the third locking part 63. This loosens the control unit 42 and the power supply unit 43 from the circuit board 41, making it easier to remove them. At this point, the circuit board 41 is free of the control unit 42 and the power supply unit 43, facilitating its removal from the movable frame. Conversely, this allows for easy installation of the circuit board 41 on the movable frame, with the control unit 42 and the power supply unit 43 mounted on the circuit board 41. This simplifies the assembly and maintenance of the control assembly 40, making front installation and maintenance simple and convenient.

[0060] like Figure 8 , Figures 13 to 15 As shown, the buckle 14 switches between a first locked position and a first unlocked position along the vertical direction of the movable frame 13. Among the multiple mating parts, the first mating part 71 can lock into the first locking part 61, and the second mating part 72 can lock into the second locking part 62. Both the first locking part 61 and the second locking part 62 are first locking hooks, and both the first mating part 71 and the second mating part 72 are first locking grooves. The mating structure of the first locking hook and the first locking groove is simple and easy to assemble. Specifically, the first locking groove is a through groove that penetrates the front and rear surfaces of the buckle 14.

[0061] It should be noted that the above-mentioned vertical direction refers to the vertical direction when the movable frame 13 is in the installation position, and the front-back direction when the movable frame 13 is in the front maintenance position or the rear maintenance position.

[0062] Of course, in the embodiment not shown in the figure, both the first locking part and the second locking part are first locking grooves, and both the first mating part and the second mating part are first locking hooks.

[0063] like Figure 5 , Figures 10 to 15 As shown, among the multiple mating parts, the third mating part 73 is the one that can lock into the third locking part 63. The third locking part 63 is a locking pin, and the third mating part 73 is a second locking groove. The mating structure of the locking pin and the second locking groove is simple and easy to assemble. Specifically, the second locking groove is a second through groove that penetrates the front and rear surfaces of the buckle 14.

[0064] Of course, in the embodiment not shown in the figure, the third mating part is a locking pin and the third locking part is a second locking groove.

[0065] like Figure 8 , Figures 13 to 15 As shown, the buckle 14 includes a frame body 141, a connecting plate 142 disposed on the rear surface of the frame body 141, and a rear flange 143 disposed on the connecting plate 142. This creates a gap between the rear flange 143 and the frame body 141, facilitating the insertion and connection of the control unit 42 onto the circuit board 41. It also provides a locking space for the second locking part 62 and the second mating part 72. When both the first locking part 61 and the second locking part 62 are first locking hooks, and both the first mating part 71 and the second mating part 72 are first locking grooves, the first locking groove that mates with the first locking part 61 is disposed on the frame body 141, and the first locking groove that mates with the second locking part 62 is disposed on the rear flange 143. The hook head of the first locking hook extends upwards. The control unit 42 is inserted and connected to the circuit board 41. When the buckle 14 switches from the first unlocking position to the first locking position, the hook head of the first locking hook engages with the first locking groove in a misaligned manner to restrict the rearward movement of the first locking hook. In this way, the buckle 14 reliably fixes the control unit 42 to the circuit board 41.

[0066] It should be noted that the upward extension mentioned above refers to the upward extension direction when the movable frame 13 is in the installation position; the forward extension direction when the movable frame 13 is in the front maintenance position; and the rearward extension direction when the movable frame 13 is in the rear maintenance position.

[0067] like Figure 5 , Figure 10 and Figure 15As shown, when the third locking part 63 is a locking pin and the third mating part 73 is a second locking groove, the movable frame 13 is provided with a sliding groove 133 for the locking pin to slide in or out. The sliding groove 133 extends in the front-to-back direction. The second locking groove is an L-shaped groove. The first segment 731 of the L-shaped groove extends in the front-to-back direction and corresponds to the sliding groove 133. The second segment 732 of the L-shaped groove extends in the up-down direction. The power supply part 43 is plugged into the circuit board 41. The locking pin slides into the sliding groove 133 and the first segment 731. When the buckle 14 switches from the first unlocking position to the first locking position, the locking pin slides into the second segment 732 to be restricted from moving backward along the sliding groove 133. In this way, the buckle 14 reliably fixes the power supply part 43 to the circuit board 41.

[0068] It should be noted that the "front and back direction" and "up and down direction" mentioned above refer to the direction when the movable frame 13 is in the installation position, but its direction is adaptively changed when the movable frame 13 is in the front maintenance position or the rear maintenance position.

[0069] like Figures 3 to 6 As shown, a second operating member 22 is oscillatingly mounted on the movable frame 13. The second operating member 22 drives the buckle 14 to switch between a first locked position and a first unlocked position. The second operating member 22 includes a second operating plate 221 and a drive shaft 222 mounted on the second operating plate 221. At least a portion of the second operating plate 221 is stacked against the side wall of the movable frame 13. The buckle 14 is provided with a limiting groove 144 that can drive and cooperate with the drive shaft 222. When the drive shaft 222 moves into the limiting groove 144, the second operating plate 221 oscillates, driving the limiting groove 144 to move via the drive shaft 222, thereby driving the buckle 14 to switch between the first locked position and the first unlocked position. Simultaneously, during the loading and unloading of the buckle 14 from the movable frame 13, to avoid interference with the drive shaft 222, the limiting groove 144 has an opening for the drive shaft 222 to move in or out.

[0070] Specifically, a second pivot shaft is provided on the movable frame 13, and the second operating member 22 is swayably sleeved on the second pivot shaft. When the movable frame 13 is in the installation position, the second pivot shaft is located above the drive shaft 222.

[0071] like Figure 3 , Figure 7 and Figure 12As shown, the LED display device also includes a locking pin 81 and a locking rod 82 detachably mounted on the fixed frame 11. When the locking pin 81 is mounted on the fixed frame 11 and locks the movable frame 13, the movable frame 13 remains in the mounting position. Thus, when the movable frame 13 is in the front maintenance position or the rear maintenance position, the locking pin 81 can be removed from the fixed frame 11 to allow the movable frame 13 to be flipped from the mounting position. The fixed frame 11 includes a fixed frame and a second pivot seat 113 mounted on the inner sidewall of the top of the fixed frame. The locking pin 81 is detachably mounted on the second pivot seat 113.

[0072] like Figure 7 and Figure 12 As shown, in this embodiment, when the movable frame 13 is in the rear maintenance position or the rear swing position, in order to prevent the multiple display modules 30 from loosening on the fixed frame 11, the locking rod 82 is movably installed on the fixed frame 11 and has a second locking position and a second unlocking position. The locking rod 82 is provided with multiple second locking hooks 821, and the fixed frame 11 is provided with multiple second clearance holes 114 to avoid the multiple second locking hooks 821. The rear side of the multiple display modules 30 is provided with multiple third locking grooves 31. The multiple second locking hooks 821 pass through the multiple second clearance holes 114 and are inserted into the multiple third locking grooves 31 one by one. When the locking rod 82 is in the second unlocking position, the multiple hook heads of the multiple second locking hooks 821 are respectively located in the multiple third locking grooves 31. When the locking rod 82 is in the second locking position, the multiple hook heads of the multiple second locking hooks 821 are respectively misaligned with the multiple third locking grooves 31 to restrict the second locking hooks 821 from moving backward. In this way, the locking lever 82 reliably fixes the multiple display modules 30 to the fixed frame 11.

[0073] 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.

[0074] 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.

[0075] 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. An LED display device, characterized in that, include: A fixed frame (11) is provided with a receiving opening (12). Multiple display modules (30) are detachably mounted on the front side of the fixed frame (11) and block the receiving port (12), wherein each of the display modules (30) can pass through the receiving port (12). The movable frame (13) is rotatably mounted on the fixed frame (11) and located at the receiving opening (12). The movable frame (13) has an installation position located within the receiving opening (12), a front maintenance position that flips forward and passes through the receiving opening (12), and a rear maintenance position that flips backward. A control component (40) is detachably mounted on the movable frame (13) and can rotate with the movable frame (13). The control component (40) can be plugged into or separated from the plurality of display modules (30). When the movable frame (13) is in the installation position, the control component (40) can be plugged into the plurality of display modules (30). When the movable frame (13) is in the front maintenance position or the rear maintenance position, the control component (40) is separated from the plurality of display modules (30). The movable frame (13) is rotatably mounted on the fixed frame (11) via a first operating member (21), the bottom end of the first operating member (21) is swayably mounted on the fixed frame (11), and the movable frame (13) is pivotally connected to the first operating member (21). The first operating component (21) includes a first operating plate (211), at least a portion of which is stacked on the side wall of the receiving port (12). The LED display device also includes a pivot (131) sequentially passing through the movable frame (13), the first operating plate (211), and the fixed frame (11). The first operating plate (211) is provided with a driving hole for driving the pivot (131) to swing, and the fixed frame (11) is provided with a first elongated hole (115) for limiting the swing range of the pivot (131).

2. The LED display device according to claim 1, characterized in that, The driving hole is a second long hole (212) corresponding to the first long hole (115), and the long axis of the first long hole (115) and the long axis of the second long hole (212) are intersected on the projection of the second long hole (212) on the side wall of the receiving port (12).

3. The LED display device according to claim 1, characterized in that, The fixed frame (11) is provided with a first pair of plug-in (51), and the movable frame (13) is provided with a second pair of plug-in (52) that can be inserted and matched with the first pair of plug-in (51). The second pair of plug-in (52) is connected to the control component (40). The second pair of plug-in (52) has an insertion position that is inserted and matched with the first pair of plug-in (51) and a separation position that is separated from the first pair of plug-in (51). When the pivot (131) abuts against the front end wall of the first elongated hole (115) and the movable frame (13) is in the installation position, the second pair of plugs (52) is in the insertion position. When the pivot (131) abuts against the front end wall of the first elongated hole (115) and the movable frame (13) is in the front maintenance position, the second pair of plugs (52) is in the disengaged position. When the first operating plate (211) drives the pivot (131) to swing from abutting against the front end wall of the first elongated hole (115) to abutting against the rear end wall of the first elongated hole (115), and the pivot (131) drives the movable frame (13) to swing to a rearward position at an angle to the rear side of the fixed frame (11), the second pair of plug-ins (52) are located in the separated position, and the control component (40) is separated from the plurality of display modules (30).

4. The LED display device according to claim 1, characterized in that, The movable frame (13) is provided with a plurality of first locking parts (61) spaced apart on the rear side. The control component (40) includes a circuit board (41) detachably disposed on the rear side of the movable frame (13) and a control part (42) and a power part (43) detachably disposed on the circuit board (41). The circuit board (41) can be plugged into or separated from a plurality of display modules (30). The circuit board (41) is provided with a first clearance hole that avoids the first locking parts (61). The control part (42) is provided with a second locking part (62). The power part (43) is provided with a third locking part (63). The LED display device further includes a latch (14) movably disposed on the rear side of the circuit board (41). The latch (14) is provided with a plurality of mating parts that respectively lock and engage with the first locking part (61), the second locking part (62), and the third locking part (63). The latch (14) has a first locking position and a first unlocking position. When the latch (14) is in the first locking position, the plurality of mating parts lock the first locking part (61), the second locking part (62), and the third locking part (63). When the latch (14) is in the first unlocking position, the plurality of mating parts unlock the first locking part (61), the second locking part (62), and the third locking part (63).

5. The LED display device according to claim 4, characterized in that, The buckle (14) switches between the first locking position and the first unlocking position along the up and down direction of the movable frame (13). Among the plurality of mating parts, one can lock and engage with the first locking part (61) to form a first mating part (71), and among the plurality of mating parts, one can lock and engage with the second locking part (62) to form a second mating part (72). The first locking part (61) and the second locking part (62) are both first locking hooks, and the first mating part (71) and the second mating part (72) are both first locking grooves. Alternatively, the first locking part (61) and the second locking part (62) are both first locking grooves, and the first mating part (71) and the second mating part (72) are both first locking hooks.

6. The LED display device according to claim 4, characterized in that, Among the plurality of mating parts, the third mating part (73) is capable of locking with the third locking part (63). The third locking part (63) is a locking pin, and the third mating part (73) is a second locking groove. Alternatively, the third mating part (73) is a locking pin, and the third locking part (63) is a second locking groove.

7. The LED display device according to claim 5, characterized in that, The buckle (14) includes a frame body (141), a connecting plate (142) disposed on the rear surface of the frame body (141), and a rear flange (143) disposed on the connecting plate (142). When the first locking part (61) and the second locking part (62) are both the first locking hooks, and the first mating part (71) and the second mating part (72) are both the first locking grooves, the first locking groove that mates with the first locking part (61) is disposed on the frame body (141), and the first locking groove that mates with the second locking part (62) is disposed on the rear flange (143). The hook head of the first locking hook extends upward. The control part (42) is plugged into the circuit board (41). When the buckle (14) is switched from the first unlocking position to the first locking position, the hook head of the first locking hook is misaligned with the first locking groove to restrict the first locking hook from moving backward.

8. The LED display device according to claim 6, characterized in that, When the third locking part (63) is the locking pin and the third mating part (73) is the second locking groove, the movable frame (13) is provided with a sliding groove (133) for the locking pin to slide in or out. The sliding groove (133) extends in the front-back direction. The second locking groove is an L-shaped groove. The first groove segment (731) of the L-shaped groove extends in the front-back direction and corresponds to the sliding groove (133). The second groove segment (732) of the L-shaped groove extends in the up-down direction. The power supply part (43) is plugged into the circuit board (41). The locking pin slides into the sliding groove (133) and the first groove segment (731). When the buckle (14) switches from the first unlocking position to the first locking position, the locking pin slides into the second groove segment (732) to be restricted from moving backward along the sliding groove (133).

9. The LED display device according to claim 4, characterized in that, The movable frame (13) is swayably provided with a second operating member (22), which drives the buckle (14) to switch between the first locked position and the first unlocked position. The second operating member (22) includes a second operating plate (221) and a drive shaft (222) provided on the second operating plate (221). At least a portion of the second operating plate (221) is stacked with the side wall of the movable frame (13). The buckle (14) is provided with a limiting groove (144) that can drive and cooperate with the drive shaft (222). The limiting groove (144) has a slot for the drive shaft (222) to move in or out.

10. The LED display device according to claim 1, characterized in that, The LED display device also includes a locking pin (81) and a locking rod (82) detachably disposed on the fixed frame (11). When the locking pin (81) is installed on the fixed frame (11) and locks the movable frame (13), the movable frame (13) remains in the installation position. The locking rod (82) is movably mounted on the fixed frame (11) and has a second locking position and a second unlocking position. The locking rod (82) is provided with a plurality of second locking hooks (821). The fixed frame (11) is provided with a plurality of second clearance holes (114) to avoid the plurality of second locking hooks (821). The rear side of the plurality of display modules (30) is provided with a plurality of third locking grooves (31). The plurality of second locking hooks (821) pass through the plurality of second clearance holes (114) and are inserted into the plurality of third locking grooves (31) one by one. When the locking rod (82) is in the second unlocking position, the plurality of hook heads of the plurality of second locking hooks (821) are respectively located in the plurality of third locking grooves (31). When the locking rod (82) is in the second locking position, the plurality of hook heads of the plurality of second locking hooks (821) are respectively misaligned with the plurality of third locking grooves (31) to restrict the second locking hooks (821) from moving backward.

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