Locking structure, unlocking tool and LED display device

Abstract

The utility model provides a locking structure, an unlocking tool and an LED display device, the locking structure comprises a lock body arranged on one of a display module and a box body, and the lock body is provided with a lock hole; the lock rod is rotatably arranged on the other one of the display module and the box body; the locking block is connected to the locking rod, and the locking block is arranged in a protruding mode in the radial direction of the locking rod; the reset piece is used for applying reset force to the locking block; in the process that the display module is installed on the box body, the lock rod moves along with the display module or the box body, the lock block abuts against the hole wall of the lock hole to drive the lock rod to rotate so that the lock block can be in an inserted state, and when the lock block penetrates through the lock hole, the lock rod is arranged in the lock hole in a penetrating mode and driven by the reset piece to rotate so that the lock block can be reset. And the lock block is in backstop fit with the lock body after being rotated by a preset angle, so that the lock block is in a locked state. According to the technical scheme, the problem that the operation of fixedly connecting the display module and the box body through a locking structure in the related technology is complex is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, and in particular to a locking structure, an unlocking tool and an LED display device. Background Art

[0002] The LED display device includes a box body and a display module arranged on the front side of the box body. In order to facilitate the maintenance of the display module, the display module is detachably arranged on the box body through a locking structure.

[0003] In the related art, a locking structure is provided between the display module and the housing. When the display module is fixed to the housing, a key needs to be inserted into the locking structure and the key is turned so that the locking structure can securely connect the display module and the housing.

[0004] Thus, in the related art, a key is required to enable the locking structure to securely connect the display module and the box, which is complicated. Utility Model Content

[0005] The main purpose of the present invention is to provide a locking structure, an unlocking tool and an LED display device to solve the problem of complicated operation of the locking structure in the related art in fixing the display module and the box body.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a locking structure is provided, which is arranged between the display module and the box body, and the locking structure includes: a lock body, which is arranged on one of the display module and the box body, and a lock hole is provided on the lock body; a locking rod is rotatably arranged on the other of the display module and the box body; a locking block is connected to the locking rod, and the locking block is arranged to protrude along the radial direction of the locking rod; a reset member is arranged on the other of the display module and the box body, and the reset member applies a reset force to the locking block; wherein, during the process of installing the display module on the box body, the locking rod moves with the display module or the box body, and the locking block abuts against the hole wall of the locking hole to drive the locking rod to rotate, so that the locking block is in an inserted state, and when the locking block passes through the locking hole, the locking rod is penetrated into the lock hole and is driven by the reset member to rotate, so as to drive the locking block to rotate a preset angle and then cooperate with the lock body stop, so that the locking block is in a locked state.

[0007] Furthermore, the lock body includes a lock body and a stop protrusion arranged on the hole wall of the lock hole. During the process of installing the display module on the box body, the locking block abuts against the side wall of the stop protrusion to drive the locking rod to rotate, so that the locking block bypasses the stop protrusion and passes through the lock hole, and the locking block cooperates with the stop protrusion.

[0008] Furthermore, during the process of installing the display module on the box, the locking rod moves along the locking direction, and a guide slope is provided on the side wall connecting the stop protrusion and the hole wall of the lock hole. The guide slope is gradually inclined along the locking direction and the peripheral direction of the stop protrusion.

[0009] Furthermore, when the display module is installed on the box, the locking rod moves along the locking direction, and an abutting inclined surface is provided on the surface of the locking block facing away from the locking rod, and the abutting inclined surface gradually approaches the axis of the locking rod along the locking direction.

[0010] Furthermore, a tool operation hole is provided on the surface of the locking block facing away from the locking rod; and / or the reset member is a torsion spring.

[0011] Furthermore, the locking structure further includes a first magnet connected to the locking rod, and the first magnet is rotatably disposed on one of the display module and the box.

[0012] Furthermore, the locking structure also includes a base body and a cover body arranged on the other of the display module and the box body, and an installation cavity is formed between the base body and the cover body. The first magnet and the locking rod can be rotatably arranged in the installation cavity. The locking rod extends out of the installation cavity and is connected to the locking block. The first end of the reset member is connected to the base body, and the second end of the reset member is connected to the first magnet or the locking rod.

[0013] Furthermore, a first limiting protrusion is provided on the first magnet, and a second limiting protrusion and a third limiting protrusion are provided at intervals in the base body. The first limiting protrusion is located between the second limiting protrusion and the third limiting protrusion. The first limiting protrusion can cooperate with the second limiting protrusion or the third limiting protrusion to limit the rotation range of the first magnet.

[0014] According to another aspect of the present invention, an unlocking tool is provided for unlocking a locking structure, the locking structure being the above-mentioned locking structure, the locking structure being two spaced apart, the unlocking tool comprising: a shell; a second magnet rotatably arranged on the shell and arranged corresponding to the first magnet of one locking structure; a third magnet rotatably arranged on the shell and spaced apart from the second magnet, the third magnet being arranged corresponding to the first magnet of the other locking structure; a transmission structure arranged on the shell, the transmission structure being coordinated with the second magnet and the third magnet to drive the second magnet and the third magnet to rotate.

[0015] Furthermore, the transmission structure includes a driving gear rotatably arranged on the housing, a first driven gear arranged on the second magnet, and a second driven gear arranged on the third magnet, the first driven gear meshing with the driving gear, and the second driven gear meshing with the driving gear.

[0016] According to another aspect of the present invention, an LED display device is provided, comprising a display module, a housing, and a locking structure, wherein the locking structure is the above-mentioned locking structure.

[0017] According to the technical solution of the present invention, a locking structure is arranged between the display module and the housing. The locking structure includes: a lock body, a locking rod, a locking block, and a reset member. The lock body is arranged on one of the display module and the housing, and a locking hole is provided on the lock body. The locking rod is rotatably arranged on the other of the display module and the housing. The locking block is connected to the locking rod, and the locking block is arranged to protrude radially from the locking rod. The reset member is arranged on the other of the display module and the housing, and the reset member applies a reset force to the locking block. In the process of installing the display module on the housing, the locking rod moves with the display module or the housing, and the locking block abuts against the wall of the locking hole to drive the locking rod to rotate, so that the locking block is in an inserted state. When the locking block passes through the locking hole, the locking rod is inserted into the locking hole and is driven by the reset member to rotate, so as to drive the locking block to rotate by a preset angle and then cooperate with the lock body stopper, so that the locking block is in a locked state. Through the above arrangement, when the display module is installed on the housing, the locking rod can be driven to rotate, allowing the locking block to be inserted into and pass through the lock hole. After passing through the lock hole, the locking block can be reset by the action of the reset member, so that the locking block can cooperate with the lock body stop to fix the display module to the housing. In this way, the operator only needs to grasp the display module and move it toward the housing, without the need for other tools, making the operation simple and convenient. Therefore, the technical solution of the present application effectively solves the problem of complex operation of the locking structure used in the related art to fix the display module to the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of the three-dimensional structure of the LED display device according to an embodiment of the present invention when the locking block is in a locked state is shown;

[0020] Figure 2 Shown Figure 1 A schematic diagram of the three-dimensional structure of the LED display device when the locking block and the stop protrusion are in avoidance cooperation;

[0021] Figure 3 Shown Figure 1 A schematic diagram of the exploded structure of a display module of an LED display device;

[0022] Figure 4 Shown Figure 1 A schematic diagram of the three-dimensional structure of the lock body of the LED display device;

[0023] Figure 5 Shown Figure 1 A schematic cross-sectional view of a locking rod and a locking block of an LED display device;

[0024] Figure 6 A schematic diagram of the three-dimensional structure of the unlocking tool according to the present utility model is shown;

[0025] Figure 7 Shown Figure 6 Schematic diagram of the exploded structure of the unlocking tool.

[0026] The above drawings include the following reference numerals:

[0027] 11. Lock body; 111. Lock hole; 12. Stop protrusion; 121. Guide slope;

[0028] 20. Locking rod;

[0029] 30. Locking block; 31. Abutment slope; 32. Tool operation hole;

[0030] 40. Reset parts;

[0031] 50. First magnet; 51. First limiting protrusion;

[0032] 61. Base; 611. Second limiting protrusion; 612. Third limiting protrusion; 62. Cover;

[0033] 71. Housing; 72. Second magnet; 73. Third magnet; 74. Driving gear; 75. First driven gear; 76. Second driven gear;

[0034] 80. Display module;

[0035] 90. Box body. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] like Figures 1 to 5As shown, applying the technical solution of this embodiment, a locking structure is arranged between the display module 80 and the box body 90. The locking structure includes: a lock body, a locking rod 20, a locking block 30 and a reset member 40. The lock body is arranged on the box body 90, and a locking hole 111 is provided on the lock body. The locking rod 20 is rotatably arranged on the display module 80. The locking block 30 is connected to the locking rod 20, and the locking block 30 is provided along the radial protrusion of the locking rod 20. The reset member 40 is arranged on the display module 80, and the reset member 40 applies a reset force to the locking block 30. In the process of installing the display module 80 on the box body 90, the locking rod 20 moves with the display module 80 or the box body 90, and the locking block 30 abuts against the hole wall of the locking hole 111 to drive the locking rod 20 to rotate, so that the locking block 30 is in an inserted state. When the locking block 30 passes through the lock hole 111, the locking rod 20 is inserted into the lock hole 111 and driven by the reset member 40 to rotate, causing the locking block 30 to rotate to a preset angle and then engage with the lock body stop, so that the locking block 30 is in a locked state. Through the above arrangement, when the display module 80 is installed on the housing 90, the locking rod 20 can be driven to rotate so that the locking block 30 can be inserted into and pass through the lock hole 111. After passing through the lock hole 111, the locking block 30 can be reset under the action of the reset member 40, so that the locking block 30 can engage with the lock body stop to fix the display module 80 to the housing 90. In this way, the operator only needs to hold the display module 80 and move it toward the housing 90, without the need for other tools, making the operation simple and convenient. Therefore, the technical solution of this embodiment effectively solves the problem of complex operation of the locking structure in the related art to fix the display module and the housing.

[0038] In other embodiments, the lock body is disposed on the display module 80 , the lock rod 20 is rotatably disposed on the box body 90 , and the reset member 40 is disposed on the box body 90 .

[0039] like Figures 1 to 5 As shown, the lock body includes a lock body 11 and a stop protrusion 12 disposed on the wall of a lock hole 111. During installation of the display module 80 on the housing 90, the lock block 30 abuts against the sidewall of the stop protrusion 12, driving the lock rod 20 to rotate. This allows the lock block 30 to bypass the stop protrusion 12 and pass through the lock hole 111, where the lock block 30 engages with the stop protrusion 12. The stop protrusion 12 has a simple structure and facilitates the manufacture of the lock body. Furthermore, the stop protrusion 12 facilitates the engagement of the lock block 30 with the stop protrusion 12 of the lock body, preventing the lock from slipping out. The stop protrusion 12 also enables the lock block 30 and the lock rod 20 to rotate when the lock block 30 is inserted into the lock hole 111, due to its abutment with the lock block 30. This allows the lock block 30 to avoid the stop protrusion 12 and pass through the lock hole 111.

[0040] like Figures 1 to 5As shown, during the installation of the display module 80 on the housing 90, the locking rod 20 moves in the locking direction. A guide bevel 121 is provided on the side wall where the stop protrusion 12 connects to the wall of the lock hole 111. The guide bevel 121 is gradually inclined along both the locking direction and the circumference of the stop protrusion 12. The provision of the guide bevel 121 ensures that when the locking block 30 is inserted into the lock hole 111, the locking block 30 abuts against the guide bevel 121, driving the locking rod 20 to rotate more smoothly. The guide bevel 121 guides the rotation of the locking rod 20, further facilitating the operator's operation.

[0041] like Figures 1 to 5 As shown, during the installation of the display module 80 onto the housing 90, the locking bar 20 moves in the locking direction. The locking block 30 has an abutment slope 31 on its surface facing away from the locking bar 20. This abutment slope 31 gradually approaches the axis of the locking bar 20 along the locking direction. The arrangement of the abutment slope 31 ensures that when the locking block 30 is inserted into the locking hole 111, the abutment slope 31 abuts against the sidewall of the stop protrusion 12, driving the locking bar 20 to rotate. The arrangement of the abutment slope 31 facilitates smoother rotation of the locking bar 20.

[0042] like Figures 1 to 5 As shown, a tool operation hole 32 is provided on the surface of the lock block 30 facing away from the lock rod 20. The provision of the tool operation hole 32 enables an operator to rotate the lock rod 20 on the side of the lock block 30 facing away from the lock rod 20, so that the lock block 30 and the stop protrusion 12 can be avoided and engaged, facilitating the operator's removal of the display module 80 from the housing 90. This facilitates the operator's removal of the display module 80 from the housing 90 from the rear side of the housing 90. The reset member 40 is a torsion spring, which has a simple structure and is easy to manufacture.

[0043] In this embodiment, the box body 90 is a frame having a through hole. When an operator removes the display module 80 from the box body 90 at the rear side of the box body 90 , the display module 80 can be taken out backwards through the through hole.

[0044] In other embodiments, a tool operation hole 32 is provided on the surface of the locking block 30 facing away from the locking rod 20. Alternatively, the reset member 40 is a torsion spring.

[0045] like Figures 1 to 5 As shown, the locking structure further includes a first magnet 50 connected to the locking bar 20. The first magnet 50 is rotatably disposed on the display module 80. The provision of the first magnet 50 enables an operator to use a magnetic member to drive the first magnet 50 to rotate, thereby driving the locking bar 20 to rotate, allowing the locking block 30 to disengage from the locking hole 111, thereby facilitating separation of the display module 80 from the housing 90. This facilitates the operator's removal of the display module 80 from the housing 90 at the front side of the housing 90.

[0046] In other embodiments, the first magnet 50 is rotatably disposed on the box 90 .

[0047] like Figures 1 to 5 As shown, the locking structure also includes a base 61 and a cover 62 disposed on the other of the display module 80 and the housing 90. A mounting cavity is formed between the base 61 and the cover 62, and both the first magnet 50 and the locking rod 20 are rotatably disposed within the mounting cavity. The locking rod 20 extends out of the mounting cavity and is connected to the locking block 30. The first end of the reset member 40 is connected to the base 61, and the second end of the reset member 40 is connected to the first magnet 50 or the locking rod 20. The base 61 and the cover 62 have a simple structure, are easy to process, and also facilitate the installation of the first magnet 50, the reset member 40, and the locking rod 20.

[0048] like Figures 1 to 5 As shown, a first limiting protrusion 51 is provided on the first magnet 50, and a second limiting protrusion 611 and a third limiting protrusion 612 are provided at intervals within the base 61. The first limiting protrusion 51 is located between the second limiting protrusion 611 and the third limiting protrusion 612. The first limiting protrusion 51 can cooperate with the second limiting protrusion 611 or the third limiting protrusion 612 to limit the rotation range of the first magnet 50. The first limiting protrusion 51, the second limiting protrusion 611, and the third limiting protrusion 612 have a simple structure and are easy to process. This can limit the rotation range of the first magnet 50, thereby limiting the rotation range of the locking rod 20, thereby increasing the service life of the reset member 40 and reducing the possibility of the reset member 40 being subjected to large torsional forces.

[0049] This application also provides an unlocking tool, such as Figures 1 to 7As shown, the unlocking tool is used to unlock the locking structure. The locking structure is the aforementioned locking structure, with two locking structures spaced apart. The unlocking tool includes a housing 71, a second magnet 72, a third magnet 73, and a transmission structure. The second magnet 72 is rotatably mounted on the housing 71 and is positioned corresponding to the first magnet 50 of one locking structure. The third magnet 73 is rotatably mounted on the housing 71 and spaced apart from the second magnet 72. The third magnet 73 is positioned corresponding to the first magnet 50 of the other locking structure. The transmission structure is mounted on the housing 71 and cooperates with the second and third magnets 72, 73 to drive the second and third magnets 72, 73 to rotate. Because the aforementioned locking structure solves the problem of complex operation in the related art of locking structures that securely connect the display module to the housing, the unlocking tool used to unlock this locking structure can solve the same technical problem. Furthermore, the provision of two locking structures ensures more stable and reliable fixation of the display module 80 to the housing 90. The second magnet 72 and the third magnet 73 are configured to cooperate with the two first magnets 50 to drive the first magnets 50 to rotate and drive the locking block 30 to switch to the inserted state, so that the locking block 30 can be withdrawn from the locking hole 111, thereby separating the display module 80 from the housing 90. The configuration of the transmission structure allows the operator to more conveniently drive the second magnet 72 and the third magnet 73 to rotate simultaneously, thereby driving the two first magnets 50 to rotate simultaneously, so that the two locking blocks 30 can switch to the inserted state at the same time, further facilitating the separation of the display module 80 from the housing 90.

[0050] Furthermore, after the display module 80 is removed from the housing 90 using the unlocking tool, the unlocking tool and the display module 80 remain magnetically engaged. At this point, the unlocking tool, in conjunction with the first limiting protrusion 51, the second limiting protrusion 611, and the third limiting protrusion 612, restricts the rotation range of the first magnet 50 while allowing the second magnet 72 and the third magnet 73 to continue rotating. This allows the magnetic poles of the first magnet 50 to repel the magnetic poles of the second magnet 72 and the third magnet 73, facilitating separation of the unlocking tool from the display module 80. Furthermore, the use of the second magnet 72 and the third magnet 73 in the unlocking tool reduces the cost of the unlocking tool compared to the related art method of using a vacuum suction cup to remove the display module from the housing.

[0051] like Figures 1 to 7 As shown, the transmission structure includes a driving gear 74 rotatably mounted on a housing 71, a first driven gear 75 mounted on a second magnet 72, and a second driven gear 76 mounted on a third magnet 73. The first driven gear 75 meshes with the driving gear 74, and the second driven gear 76 meshes with the driving gear 74. The transmission structure is simple and easy to manufacture. The transmission coordination among the driving gear 74, the first driven gear 75, and the second driven gear 76 is simple and reliable, making assembly easy.

[0052] This application also provides an LED display device, such as Figures 1 to 5 As shown, the LED display device includes a display module 80, a housing 90, and a locking structure, which is the aforementioned locking structure. Because the aforementioned locking structure can solve the problem of complicated operation of the locking structure in the related art for fixing the display module and the housing, the LED display device with this locking structure can solve the same technical problem. The aforementioned locking mechanism is applicable to both fine-pitch modules and large-pitch modules.

[0053] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0054] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A locking structure, provided between a display module (80) and a box (90), characterized in that: The locking structure comprises: a lock body, arranged on one of the display module (80) and the box (90), and provided with a lock hole (111); a locking rod (20) rotatably disposed on the other of the display module (80) and the box (90); A locking block (30) is connected to the locking rod (20), and the locking block (30) is provided to protrude radially from the locking rod (20); a reset member (40) disposed on the other of the display module (80) and the box (90), the reset member (40) applying a reset force to the locking block (30); In the process of installing the display module (80) on the box body (90), the locking rod (20) moves with the display module (80) or the box body (90), and the locking block (30) abuts against the hole wall of the locking hole (111) to drive the locking rod (20) to rotate, so that the locking block (30) is in an inserted state. When the locking block (30) passes through the locking hole (111), the locking rod (20) is inserted into the locking hole (111) and is driven by the reset member (40) to rotate, so as to drive the locking block (30) to rotate a preset angle and then cooperate with the lock body stopper, so that the locking block (30) is in a locked state.

2. The locking structure according to claim 1, characterized in that: The lock body comprises a lock body (11) and a stop protrusion (12) arranged on the hole wall of the lock hole (111). When the display module (80) is installed on the box body (90), the lock block (30) abuts against the side wall of the stop protrusion (12) to drive the lock rod (20) to rotate, so that the lock block (30) bypasses the stop protrusion (12) and passes through the lock hole (111), and the lock block (30) and the stop protrusion (12) are engaged in a stop manner.

3. The locking structure according to claim 2, characterized in that: During the process of installing the display module (80) on the box body (90), the locking rod (20) moves along the locking direction, and a guide slope (121) is provided on the side wall where the stop protrusion (12) is connected to the hole wall of the lock hole (111), and the guide slope (121) is gradually inclined along the locking direction and the peripheral direction of the stop protrusion (12).

4. The locking structure according to claim 1, characterized in that: During the process of installing the display module (80) on the box body (90), the locking rod (20) moves along the locking direction, and a contact inclined surface (31) is provided on the surface of the locking block (30) facing away from the locking rod (20), and the contact inclined surface (31) gradually approaches the axis of the locking rod (20) along the locking direction.

5. The locking structure according to claim 1, characterized in that: A tool operation hole (32) is provided on the surface of the locking block (30) facing away from the locking rod (20); and / or the reset member (40) is a torsion spring.

6. The locking structure according to claim 1, characterized in that: The locking structure further comprises a first magnet (50) connected to the locking rod (20), wherein the first magnet (50) is rotatably disposed on one of the display module (80) and the box (90).

7. The locking structure according to claim 6, characterized in that: The locking structure further includes a base (61) and a cover (62) arranged on the other of the display module (80) and the box (90), wherein an installation cavity is formed between the base (61) and the cover (62), the first magnet (50) and the locking rod (20) are both rotatably arranged in the installation cavity, the locking rod (20) extends out of the installation cavity and is connected to the locking block (30), the first end of the reset member (40) is connected to the base (61), and the second end of the reset member (40) is connected to the first magnet (50) or the locking rod (20).

8. The locking structure according to claim 7, characterized in that: A first limiting protrusion (51) is provided on the first magnet (50), and a second limiting protrusion (611) and a third limiting protrusion (612) are provided in the base body (61) at intervals. The first limiting protrusion (51) is located between the second limiting protrusion (611) and the third limiting protrusion (612). The first limiting protrusion (51) can cooperate with the second limiting protrusion (611) or the third limiting protrusion (612) to limit the rotation range of the first magnet (50).

9. An unlocking tool for unlocking a locking structure, characterized in that: The locking structure is a locking structure according to any one of claims 6 to 8, wherein there are two locking structures arranged at intervals, and the unlocking tool comprises: Housing (71); a second magnet (72) rotatably disposed on the housing (71) and corresponding to one of the first magnets (50) of the locking structure; a third magnet (73) rotatably disposed on the housing (71) and spaced apart from the second magnet (72), the third magnet (73) being disposed corresponding to the first magnet (50) of the other locking structure; A transmission structure is provided on the housing (71), and the transmission structure cooperates with the second magnet (72) and the third magnet (73) to drive the second magnet (72) and the third magnet (73) to rotate.

10. The unlocking tool according to claim 9, characterized in that: The transmission structure comprises a driving gear (74) rotatably arranged on the housing (71), a first driven gear (75) arranged on the second magnet (72), and a second driven gear (76) arranged on the third magnet (73), wherein the first driven gear (75) is meshed with the driving gear (74), and the second driven gear (76) is meshed with the driving gear (74).

11. An LED display device, comprising a display module (80), a housing (90) and a locking structure, characterized in that: The locking structure is the locking structure according to any one of claims 1 to 8.

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