LED display device

Abstract

The utility model provides a light-emitting diode (LED) display device. The LED display device comprises a supporting frame, a light-emitting diode (LED) module and a light-emitting diode module, the LED module is detachably arranged on the supporting frame; the locking assembly comprises a first lock body, a second lock body, a lock cylinder and an elastic piece, the first lock body is arranged on the supporting frame, the second lock body is arranged on the LED module, the lock cylinder is rotatably arranged on the first lock body and the second lock body in a penetrating mode, and the elastic piece is arranged on the lock cylinder in a sleeving mode; wherein the lock cylinder is provided with a locking position and an unlocking position, a first clamping part and a second clamping part are arranged on the lock cylinder, the lock cylinder rotates, and under the action of the elastic piece, the first clamping part is clamped with the first lock body, and the second clamping part is clamped with the second lock body, so that the lock cylinder is kept at the locking position. According to the technical scheme provided by the invention, the problems that the disassembly or assembly process of the lamp panel module and the supporting frame is tedious and the working efficiency of assembling the LED display screen is influenced due to the fact that a plurality of screws on the supporting frame and the lamp panel module need to be disassembled in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, and in particular to an LED display device. Background Art

[0002] LED display screen is a display device used to display information such as text, images, videos and video signals. Because LED display screens can be extended arbitrarily, achieve seamless splicing, have a long operating time, can use interactive technology, and have good display effects, they are widely used in shopping malls, high-speed railways, subways, cinemas, exhibitions, office buildings and other places.

[0003] In the related art, the LED display screen includes a supporting frame and a plurality of light board modules. The plurality of light board modules are spliced ​​on the supporting frame in the form of a matrix, and the plurality of light board modules are connected to the supporting frame by using a plurality of screws.

[0004] However, in the related art, the light board module is detachably mounted on the support frame by multiple screws. When disassembling, the multiple screws need to be removed by using a disassembly tool, which makes the disassembly or installation process of the light board module and the support frame cumbersome, affecting the work efficiency of assembling the LED display. Utility Model Content

[0005] The utility model provides an LED display device to solve the problem in the related art that a plurality of screws on a support frame and a light board module need to be removed first, resulting in a cumbersome disassembly or installation process of the light board module and the support frame, thus affecting the work efficiency of assembling the LED display screen.

[0006] The utility model provides an LED display device, which comprises: a supporting frame; an LED module, wherein the LED module is detachably arranged on the front side of the supporting frame; a locking assembly, wherein the locking assembly comprises a first lock body, a second lock body, a lock core and an elastic member, wherein the first lock body is arranged on the supporting frame, the second lock body is arranged on the LED module, the lock core is rotatably inserted into the first lock body and the second lock body, the elastic member is sleeved on the lock core, the first end of the elastic member is in contact with the first lock body, and the second end of the elastic member is in contact with the second lock body; wherein the lock core has a locking member that is in contact with the first lock body and the second lock body; The lock core has a locking position in which the second lock body is locked and an unlocking position separated from the first lock body and the second lock body. A first clamping portion cooperating with the first lock body and a second clamping portion cooperating with the second lock body are provided on the lock core. The lock core can move along the axial direction of the lock core when it is in the unlocking position. When the lock core switches from the unlocking position to the locking position, the lock core moves toward the LED module and makes the first clamping portion pass through to the front side of the second lock body. The lock core rotates and under the action of the elastic member, the first clamping portion is clamped with the first lock body and the second clamping portion is clamped with the second lock body to keep the lock core in the locked position.

[0007] Furthermore, the locking assembly also includes a limiting structure, the first end of the lock core passes through the first lock body, the limiting structure is arranged at the first end of the lock core and can move axially along the lock core, when the lock core is in the locking position, the limiting structure can move to a position in contact with the first lock body to limit the movement of the lock core along its axial direction.

[0008] Furthermore, the first end of the lock core is provided with an external thread, and the limiting structure is a rotating nut threadably connected to the external thread.

[0009] Furthermore, the locking assembly also includes a fastening screw, and a first threaded hole is provided on the end face of the first end of the lock core. The fastening screw extends into the first threaded hole and cooperates with the rotating nut stopper to prevent the rotating nut from detaching from the lock core in a direction away from the support frame.

[0010] Furthermore, the first clamping part includes a lock tooth, which protrudes from the outer wall of the lock core, and the second clamping part includes a strip-shaped lock block, which is arranged at the second end of the lock core. A first lock hole is arranged on the first lock body, and a second lock hole is arranged on the second lock body. The first lock hole is a tooth-shaped structure corresponding to the lock tooth, and the second lock hole is a strip-shaped hole adapted to the lock block.

[0011] Furthermore, the first lock body includes a cone, the first lock hole is arranged in the cone, and a receiving hole connected to the first lock hole is also arranged in the cone. The receiving hole is located at one end of the first lock hole facing the LED module, and a first limiting portion and a second limiting portion are arranged in the receiving hole. When the first clamping portion cooperates with the first limiting portion, the lock core is located in a locking position, and when the first clamping portion cooperates with the second limiting portion, the lock core is located in an unlocking position.

[0012] Furthermore, the first limiting portion and the second limiting portion are symmetrically arranged.

[0013] Furthermore, a step surface is formed between the first lock hole and the accommodating hole, and a limiting groove is arranged on the step surface. When the lock core is in the locking position, the lock tooth extends into the limiting groove and fits with the inner side wall of the limiting groove.

[0014] Furthermore, a limiting disc is provided on the lock core, the limiting disc is arranged in the accommodating hole, the first end of the elastic member abuts against the limiting disc, and the radial dimension of the disc matches the clearance of the accommodating hole.

[0015] Furthermore, the first lock body includes a lock body and a positioning column arranged on the lock body, a first hole section and a second hole section are arranged on the support frame, the cross-sectional size of the first hole section is larger than the cross-sectional size of the second hole section, the positioning column extends into the first hole section, and the locking assembly also includes a connecting screw, which passes through the second hole section and is threadedly connected to the positioning column in the first hole section.

[0016] By applying the technical solution of the utility model, the LED display device includes a supporting frame, an LED module and a locking assembly. The LED module is detachably arranged on the front side of the supporting frame by the locking assembly, so that it is convenient to assemble the LED module on the supporting frame, and the locking assembly is used to lock the LED module to prevent it from detaching from the supporting frame. When disassembling, it is only necessary to control the locking assembly to detach from the LED module, so that the LED module can be easily disassembled and separated from the supporting frame. The locking assembly comprises a first lock body arranged on the supporting frame, a second lock body arranged on the LED module, a lock core inserted through the first lock body and the second lock body, and an elastic member sleeved on the lock core, so that when the lock core is inserted through the first lock body and the second lock body, the first end of the elastic member abuts against the first lock body, and the second end of the elastic member abuts against the second lock body. In this way, when the lock core is in the unlocking position, the lock core can move axially so that the lock core moves downward, and the lock core passes through the front side of the second lock body, and utilizes the first clamping part on the lock core to clamp with the first lock body, and the second clamping part on the lock core is clamped with the second lock body, and when the elastic member is compressed, the first clamping part abuts against the first lock body, and the second clamping part abuts against the second lock body, so that the lock core switches from the unlocking position to the locking position, avoiding the support frame and the LED module from being separated, ensuring that the connection method is simple, easy to operate, and improving the installation efficiency of the LED display device. The lock core is rotated to switch the lock core from a locked position to an unlocked position, which facilitates the separation of the first clamping portion from the first lock body and the separation of the second clamping portion from the second lock body, so that the second clamping portion is retracted upward into the second lock body. This facilitates the disassembly and separation of the support frame and the LED module by rotating the lock core, thereby simplifying the disassembly method, avoiding the problem of low disassembly efficiency caused by disassembling multiple screws, and improving the practicality and structural reliability of the LED display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 The structure diagram of the LED display device provided by the embodiment of the utility model is shown;

[0019] Figure 2 A schematic diagram showing another viewing angle of the LED display device provided by an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of a support frame provided by an embodiment of the utility model is shown;

[0021] Figure 4A schematic diagram of an LED module provided by an embodiment of the utility model is shown;

[0022] Figure 5 A schematic diagram showing another viewing angle of the LED module provided by an embodiment of the utility model;

[0023] Figure 6 A schematic diagram of the structure of a locking assembly provided by an embodiment of the utility model is shown;

[0024] Figure 7 A front view of a locking assembly provided by an embodiment of the utility model is shown;

[0025] Figure 8 A side view of a locking assembly provided by an embodiment of the utility model is shown;

[0026] Fig. 9 A top view of a locking assembly provided by an embodiment of the utility model is shown;

[0027] Fig.10 A bottom view of a locking assembly provided by an embodiment of the utility model is shown;

[0028] Fig.11 A cross-sectional view of a locking assembly provided by an embodiment of the utility model is shown;

[0029] Fig.12 A schematic diagram of the structure of a lock core provided by an embodiment of the utility model is shown;

[0030] Fig.13 A front view of a lock core provided by an embodiment of the utility model is shown;

[0031] Fig.14 A schematic diagram of a first lock body provided by an embodiment of the utility model is shown;

[0032] Fig.15 A cross-sectional view of a first lock body provided by an embodiment of the utility model is shown;

[0033] Fig.16 A front view of a first lock body provided by an embodiment of the utility model is shown;

[0034] Fig.17 A side view of a first lock body provided by an embodiment of the utility model is shown;

[0035] Fig.18 A top view of a first lock body provided by an embodiment of the utility model is shown.

[0036] The above drawings include the following reference numerals:

[0037] 10. Support frame;

[0038] 20. LED module;

[0039] 30. Locking assembly; 31. First lock body; 311. First locking hole; 312. Cone; 313. Accommodating hole; 3131. First limiting portion; 3132. Second limiting portion; 314. Limiting groove; 315. Lock body; 316. Positioning column; 32. Second lock body; 321. Second locking hole; 33. Lock core; 331. First clamping portion; 3311. Lock tooth; 332. Second clamping portion; 3321. Bar lock block; 333. First threaded hole; 334. Limiting disk; 35. Rotating nut; 36. Fastening screw. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0041] like Figures 1 to 18 As shown, the embodiment of the utility model provides an LED display device, which includes a supporting frame 10, an LED module 20 and a locking assembly 30. The LED module 20 is detachably arranged on the front side of the supporting frame 10. The locking assembly 30 includes a first lock body 31, a second lock body 32, a lock core 33 and an elastic member. The first lock body 31 is arranged on the supporting frame 10, and the second lock body 32 is arranged on the LED module 20. The lock core 33 is rotatably inserted into the first lock body 31 and the second lock body 32. The elastic member is sleeved on the lock core 33. The first end of the elastic member abuts against the first lock body 31, and the second end of the elastic member abuts against the second lock body 32. The lock core 33 has a lock body 31 and a second lock body 32. The lock core 33 has a locking position locked with the second lock body 32 and an unlocking position separated from the first lock body 31 and the second lock body 32. The lock core 33 is provided with a first clamping portion 331 that cooperates with the first lock body 31 and a second clamping portion 332 that cooperates with the second lock body 32. When the lock core 33 is in the unlocking position, it can move along the axial direction of the lock core 33. When the lock core 33 is switched from the unlocking position to the locking position, the lock core 33 moves toward the LED module 20 and makes the first clamping portion 331 pass through to the front side of the second lock body 32. The lock core 33 rotates and under the action of the elastic member, the first clamping portion 331 is clamped with the first lock body 31 and the second clamping portion 332 is clamped with the second lock body 32 to keep the lock core 33 in the locked position.

[0042] The LED display device provided in this embodiment includes a supporting frame 10, an LED module 20 and a locking assembly 30. The LED module 20 is detachably arranged on the front side of the supporting frame 10 through the locking assembly 30, so that it is convenient to assemble the LED module 20 on the supporting frame 10, and the locking assembly 30 is used to lock the LED module 20 to prevent the LED module 20 from detaching from the supporting frame 10. When disassembling, it is only necessary to control the locking assembly 30 to detach from the LED module 20, so that the LED module 20 and the supporting frame 10 can be easily disassembled and separated. The locking assembly 30 includes a first lock body 31 disposed on the supporting frame 10, a second lock body 32 disposed on the LED module 20, a lock core 33 inserted through the first lock body 31 and the second lock body 32, and an elastic member sleeved on the lock core 33, so that when the lock core 33 is inserted through the first lock body 31 and the second lock body 32, the first end of the elastic member abuts against the first lock body 31, and the second end of the elastic member abuts against the second lock body 32. In this way, when the lock core 33 is in the unlocking position, the lock core 33 can move axially, so that the lock core 33 moves downward, and the lock core 33 is inserted through the first lock body 31 and the second lock body 32. The front side of the second lock body 32 is extended out, and the first clamping portion 331 on the lock core 33 is clamped with the first lock body 31, and the second clamping portion 332 on the lock core 33 is clamped with the second lock body 32. When the elastic member is in compression, the first clamping portion 331 is abutted against the first lock body 31, and the second clamping portion 332 is clamped with the second lock body 32, so that the lock core 33 is switched from the unlocking position to the locking position, avoiding the support frame 10 and the LED module 20 from being separated, ensuring that the connection method is simple, easy to operate, and improving the installation efficiency of the LED display device. The lock core 33 is rotated to switch the lock core 33 from the locked position to the unlocked position, so that the first clamping portion 331 is separated from the first lock body 31, and the second clamping portion 332 is separated from the second lock body 32, so that the second clamping portion 332 is retracted upward into the second lock body 32. This makes it easy to disassemble and separate the support frame 10 and the LED module 20 by rotating the lock core 33, which simplifies the disassembly method and avoids the problem of low disassembly efficiency caused by disassembling multiple screws, thereby improving the practicality and structural reliability of the LED display device.

[0043] In this embodiment, the locking assembly 30 further includes a limiting structure, the first end of the lock core 33 passes through the first lock body 31, the limiting structure is arranged at the first end of the lock core 33 and can move axially along the lock core 33, when the lock core 33 is in the locked position, the limiting structure can move to a position in contact with the first lock body 31 to limit the movement of the lock core 33 along its axial direction. With the above structure, by setting the limiting structure, the limiting structure is arranged on the first end of the lock core 33 and can move axially with the lock core 33, and then when the lock core 33 is in the locked position, the limiting structure can move relative to the lock core 33 and then contact the first lock body 31, so that it can be ensured that when the limiting structure moves to contact with the first lock body 31, the elastic member is prevented from applying force to the first lock body 31, so that the support frame 10 is away from the LED module 20, and the connection structure between the support frame 10 and the LED module 20 is stable.

[0044] like Figures 6 to 13 As shown, the first end of the lock core 33 is provided with an external thread, and the limiting structure is a rotating nut 35 threadedly connected to the external thread. With the above structure, the first end of the lock core 33 is provided with an external thread, and the limiting structure is a rotating nut 35, which is sleeved on the first end of the lock core 33, so that the rotating nut 35 and the lock core 33 are threadedly matched, so that the rotating nut 35 can move relative to the lock core 33, so that when the lock core 33 is in the locked position, the rotating nut 35 is rotated relative to the lock core 33, so that the rotating nut 35 is moved axially relative to the lock core 33, so that the rotating nut 35 abuts against the first lock body 31, which can play a role in limiting.

[0045] like Fig.11 As shown, the locking assembly 30 further includes a fastening screw 36. A first threaded hole 333 is provided on the end surface of the first end of the lock core 33. The fastening screw 36 extends into the first threaded hole 333 and cooperates with the stopper of the rotating nut 35 to prevent the rotating nut 35 from being separated from the lock core 33 in a direction away from the support frame 10. With the above structure, by providing the first threaded hole 333 on the end surface of the first end of the lock core 33, the fastening screw 36 extends into the first threaded hole 333 and cooperates with the stopper of the rotating nut 35, so that when the rotating nut 35 moves axially relative to the lock core 33, the fastening screw 36 plays a limiting role, preventing the rotating nut 35 from being separated from the lock core 33, and ensuring the structural reliability of the locking assembly 30.

[0046] It should be noted that the radius of the screw head of the fastening screw 36 is larger than the radius of the threaded hole that matches the rotating nut 35 and the first end of the lock core 33, so that when the rotating nut 35 moves to the first end of the lock core 33, the side wall of the rotating nut 35 abuts against the screw head of the fastening screw 36, which can play a limiting role.

[0047] like Figures 12 to 18 As shown, the first clamping portion 331 includes a lock tooth 3311, which protrudes from the outer wall of the lock core 33, and the second clamping portion 332 includes a strip-shaped lock block 3321, which is arranged at the second end of the lock core 33. A first lock hole 311 is arranged on the first lock body 31, and a second lock hole 321 is arranged on the second lock body 32. The first lock hole 311 is a tooth-shaped structure corresponding to the lock tooth 3311, and the second lock hole 321 is a strip-shaped hole adapted to the lock block. When the lock core 33 is in the unlocking state, the locking tooth 3311 is engaged with the first locking hole 311 and the strip locking block 3321 is engaged with the second locking hole 321, so that the lock core 33 can be locked and fixed with the locking assembly 30. By rotating the lock core 33, the LED display device can be switched between the locked position and the unlocked position, so that the operation is simple and convenient.

[0048] like Figures 14 to 18 As shown, the first lock body 31 includes a cone 312, the first lock hole 311 is arranged in the cone 312, and a receiving hole 313 connected to the first lock hole 311 is also arranged in the cone 312. The receiving hole 313 is located at the end of the first lock hole 311 facing the LED module 20, and a first limiting portion 3131 and a second limiting portion 3132 are arranged in the receiving hole 313. When the first clamping portion 331 cooperates with the first limiting portion 3131, the lock core 33 is located in the locking position, and when the first clamping portion 331 cooperates with the second limiting portion 3132, the lock core 33 is located in the unlocking position. With the above structure, a truncated cone 312 is provided, a receiving hole 313 is provided on the truncated cone 312, and a first limiting portion 3131 and a second limiting portion 3132 are provided in the receiving hole 313. In this way, when the first clamping portion 331 cooperates with the first limiting portion 3131, the lock core 33 is located in a locked position, and when the first clamping portion 331 cooperates with the second limiting portion 3132, the lock core 33 is located in an unlocked position. Therefore, only the first clamping portion 331 needs to cooperate with the first limiting portion 3131 and the second limiting portion 3132 respectively, so that the rotation of the lock core 33 can be controlled to limit, and it is ensured that the lock core 33 can be controlled to switch between the locked position and the unlocked position when the lock core 33 rotates, thereby improving the accuracy of the lock core 33 cooperating with the first lock body 31 and the second lock body 32 respectively.

[0049] In this embodiment, the first limiting portion 3131 and the second limiting portion 3132 are symmetrically arranged. With the above structure, by symmetrically arranging the first limiting portion 3131 and the second limiting portion 3132, it is convenient to control the rotation angle of the lock core 33.

[0050] It should be noted that, in this embodiment, the rotation angle of the lock core 33 is 90°.

[0051] like Fig.14 As shown, a step surface is formed between the first lock hole 311 and the receiving hole 313, and a limiting groove 314 is arranged on the step surface. When the lock core 33 is in the locked position, the lock tooth 3311 extends into the limiting groove 314 and fits with the inner wall of the limiting groove 314. With the above structure, a step surface is formed between the first lock hole 311 and the receiving hole 313, and a limiting groove 314 is arranged on the step surface. When the lock core 33 is in the locked position, the lock tooth 3311 can fit with the inner wall of the limiting groove 314, so that the lock core 33 can be prevented from rotating relative to each other, so that the lock core 33 can be limited in the locked position under the action of the limiting groove 314.

[0052] like Figures 11 to 13 As shown, a limiting disc 334 is provided on the lock core 33, and the limiting disc 334 is provided in the receiving hole 313. The first end of the elastic member abuts against the limiting disc 334, and the radial dimension of the disc is in clearance with the receiving hole 313. With the above structure, by providing the limiting disc 334, the clearance between the limiting disc 334 and the receiving hole 313 can be utilized to prevent the lock core 33 from shaking, so that the lock core 33 can pass through the second lock body 32 to achieve locking, and the limiting disc 334 abuts against the first end of the elastic member, so that the elastic member can be compressed and assembled.

[0053] like Figures 14 to 17 As shown, the first lock body 31 includes a lock body 315 and a positioning column 316 disposed on the lock body 315, a first hole section and a second hole section are disposed on the support frame 10, the cross-sectional size of the first hole section is larger than the cross-sectional size of the second hole section, the positioning column 316 extends into the first hole section, and the locking assembly 30 also includes a connecting screw, which is passed through the second hole section and is threadedly connected to the positioning column 316 in the first hole section. With the above structure, by providing the first hole section and the second hole section on the support frame 10, the positioning column 316 can extend into the first hole section, the connecting screw can extend into the second hole section and be threadedly connected to the positioning column 316 in the first hole section, and thus the first lock body 31 can be fixed on the support frame 10.

[0054] It should be noted that, in the present embodiment, a through hole is provided on the second lock body 32 , and screws are passed through the through hole to connect with the LED module.

[0055] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0056] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An LED display device, characterized in that: The LED display device comprises: Support frame (10); An LED module (20), the LED module (20) being detachably arranged on the front side of the supporting frame (10); A locking assembly (30), the locking assembly (30) comprising a first lock body (31), a second lock body (32), a lock core (33) and an elastic member, the first lock body (31) being arranged on the supporting frame (10), the second lock body (32) being arranged on the LED module (20), the lock core (33) being rotatably inserted through the first lock body (31) and the second lock body (32), the elastic member being sleeved on the lock core (33), the first end of the elastic member being in contact with the first lock body (31), and the second end of the elastic member being in contact with the second lock body (32); The lock core (33) has a locking position in which the lock core is locked with the first lock body (31) and the second lock body (32), and an unlocking position in which the lock core is separated from the first lock body (31) and the second lock body (32). The lock core (33) is provided with a first clamping portion (331) matched with the first lock body (31) and a second clamping portion (332) matched with the second lock body (32). When the lock core (33) is in the unlocking position, it can move along the axial direction of the lock core (33). When the lock core (33) switches from the unlocking position to the locking position, the lock core (33) moves toward the LED module (20) and causes the first clamping portion (331) to pass through the front side of the second lock body (32); the lock core (33) rotates and under the action of the elastic member, the first clamping portion (331) is clamped with the first lock body (31) and the second clamping portion (332) is clamped with the second lock body (32) so that the lock core (33) is kept in the locking position.

2. The LED display device according to claim 1, characterized in that: The locking assembly (30) further comprises a limiting structure, wherein the first end of the lock core (33) passes through the first lock body (31), the limiting structure is arranged at the first end of the lock core (33) and is capable of moving axially along the lock core (33), and when the lock core (33) is in the locking position, the limiting structure is capable of moving to a position in contact with the first lock body (31) to limit the movement of the lock core (33) along its axial direction.

3. The LED display device according to claim 2, characterized in that: The first end of the lock core (33) is provided with an external thread, and the limiting structure is a rotating nut (35) threadably connected to the external thread.

4. The LED display device according to claim 3, characterized in that: The locking assembly (30) further comprises a fastening screw (36), a first threaded hole (333) being arranged on the end surface of the first end of the lock core (33), the fastening screw (36) extending into the first threaded hole (333) and cooperating with the stopper of the rotating nut (35) to prevent the rotating nut (35) from being separated from the lock core (33) in a direction away from the supporting frame (10).

5. The LED display device according to any one of claims 1 to 4, characterized in that: The first clamping portion (331) includes a lock tooth (3311), and the lock tooth (3311) protrudes from the outer wall of the lock core (33); the second clamping portion (332) includes a strip-shaped lock block (3321), and the strip-shaped lock block (3321) is arranged at the second end of the lock core (33); the first lock body (31) is provided with a first lock hole (311), and the second lock body (32) is provided with a second lock hole (321); the first lock hole (311) is a tooth-shaped structure corresponding to the lock tooth (3311), and the second lock hole (321) is a strip-shaped hole adapted to the lock block.

6. The LED display device according to claim 5, characterized in that: The first lock body (31) comprises a truncated cone (312), the first locking hole (311) is arranged in the truncated cone (312), a receiving hole (313) connected to the first locking hole (311) is also arranged in the truncated cone (312), the receiving hole (313) is located at one end of the first locking hole (311) facing the LED module (20), a first limiting portion (3131) and a second limiting portion (3132) are arranged in the receiving hole (313), when the first clamping portion (331) cooperates with the first limiting portion (3131), the lock core (33) is located in the locking position, and when the first clamping portion (331) cooperates with the second limiting portion (3132), the lock core (33) is located in the unlocking position.

7. The LED display device according to claim 6, characterized in that: The first limiting portion (3131) and the second limiting portion (3132) are symmetrically arranged.

8. The LED display device according to claim 7, characterized in that: A step surface is formed between the first lock hole (311) and the receiving hole (313), and a limiting groove (314) is arranged on the step surface. When the lock core (33) is in the locking position, the lock tooth (3311) extends into the limiting groove (314) and fits with the inner side wall of the limiting groove (314).

9. The LED display device according to claim 6, characterized in that: A limiting disc (334) is provided on the lock core (33), and the limiting disc (334) is arranged in the receiving hole (313). The first end of the elastic member abuts against the limiting disc (334), and the radial dimension of the disc is clearance-matched with the receiving hole (313).

10. The LED display device according to claim 1, characterized in that: The first lock body (31) comprises a lock body (315) and a positioning column (316) arranged on the lock body (315); a first hole section and a second hole section are arranged on the support frame (10); the cross-sectional dimension of the first hole section is larger than the cross-sectional dimension of the second hole section; the positioning column (316) extends into the first hole section; and the locking assembly (30) further comprises a connecting screw, which is passed through the second hole section and is threadedly connected to the positioning column (316) in the first hole section.

Images