Plugging assembly of LED display device and LED display device

Abstract

The utility model provides a plugging assembly of an LED display device and the LED display device, and the plugging assembly of the LED display device comprises a jack assembly which comprises a jack seat and a first signal connecting piece arranged on the jack seat; the plug assembly comprises a plug seat and a second signal connecting piece movably arranged on the plug seat, and the second signal connecting piece is provided with a switch-on position connected with the first signal connecting piece and a switch-off position separated from the first signal connecting piece; the driving mechanism comprises an eccentric gear shaft rotatably arranged on the connector assembly and a straight gear shaft rotatably arranged on the second signal connecting piece, the eccentric gear shaft and the straight gear shaft are in meshing transmission, and the eccentric gear shaft drives the straight gear shaft to rotate when rotating; and the straight gear shaft drives the second signal connecting piece to move along the moving direction of the second signal connecting piece. According to the technical scheme, the problems that in the related technology, the shifting mode of a driving handle is wide in related range, and interference with other parts is likely to be generated are effectively solved.

Description

Technical Field

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

[0002] In the related art, an LED display device is composed of display units spliced ​​together, and there are various ways to connect the circuits between the display units. For example, Chinese utility model patent CN203260873U "Line connection structure of LED display screen" discloses a method in which adjacent LED frames equipped with LED display components are connected using conductive wires, resulting in messy wiring on the back of the LED display device.

[0003] In order to solve the above technical problems, a circuit connector is provided in the related art, and the circuit connector includes a plug assembly and a socket assembly. The structure of the plug assembly is that the driving handle is connected to the transmission component A, the transmission component A is connected to the transmission component B, the transmission component B is connected to the telescopic plug, and the telescopic plug is constrained by the wall of the mounting seat and can only move linearly. The plug assembly and the socket assembly are placed close to each other, and the driving handle is moved to drive the transmission component A and the transmission component B to drive the telescopic plug, so that the telescopic plug is inserted into or withdrawn from the socket assembly under the constraint of the mounting seat, and the circuit conductor is connected or disconnected.

[0004] However, the above-mentioned toggling method of the driving handle involves a wide range and is prone to interfere with other components (conductive wires in the LED display device). Utility Model Content

[0005] The main purpose of the utility model is to provide a plug-in assembly of an LED display device and an LED display device, so as to solve the problem that the toggling mode of the driving handle in the related art involves a wide range and is easy to interfere with other components.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a plug-in assembly of an LED display device is provided, comprising: a socket assembly, comprising a socket and a first signal connector arranged on the socket; a plug assembly, comprising a plug socket and a second signal connector movably arranged on the plug socket, the second signal connector having a connected position connected to the first signal connector and a disconnected position separated from the first signal connector; a driving mechanism, comprising an eccentric gear shaft rotatably arranged on the plug socket and a spur gear shaft rotatably arranged on the second signal connector, the eccentric gear shaft and the spur gear shaft being meshed for transmission, the eccentric gear shaft drives the spur gear shaft to rotate when it rotates, and the spur gear shaft drives the second signal connector to move along the moving direction of the second signal connector to drive the second signal connector to move between the connected position and the disconnected position.

[0007] Furthermore, a mounting hole is provided on the second signal connector, and the plug-in assembly of the LED display device also includes a locking structure, which includes a locking pin movably arranged in the mounting hole and a locking slot arranged on the plug socket, and the locking pin has an avoidance position disengaged from the locking slot and a locking position located in the locking slot. When the locking pin is in the avoidance position, the second signal connector switches between the connected position and the disconnected position, and when the locking pin is in the locking position, the second signal connector remains in the connected position.

[0008] Furthermore, a first avoidance hole connected to the lock slot is provided on the plug socket, the lock slot and the lock pin are respectively located on opposite sides of the plug socket, the lock pin includes a lock body and a pin segment arranged on the lock body, the lock body drives the pin segment to move, so that when the pin segment cooperates with the second signal connector stopper, the lock pin is in the avoidance position, the lock body drives the pin segment to move, so that after the pin segment passes through the first avoidance hole and rotates to a preset angle and is located in the lock slot, the lock pin is in the locking position.

[0009] Furthermore, a receiving groove is provided on a side of the second signal connector facing the plug socket, and the receiving groove is communicated with the mounting hole. When the lock body drives the pin section to be located in the receiving groove, the pin section cooperates with the second signal connector stopper.

[0010] Furthermore, the locking structure also includes a first elastic member arranged in the mounting hole, and the first elastic member applies a first elastic force to the locking pin in a direction away from the locking slot, so that the locking pin is maintained in the avoidance position or the locking position.

[0011] Furthermore, an arc-shaped guide groove is provided on the plug socket, and an arc-shaped protrusion is provided on the second signal connector, and the arc-shaped protrusion cooperates with the arc-shaped guide groove in a guiding manner along a moving direction of the second signal connector.

[0012] Furthermore, the plug socket includes a seat plate, a support plate arranged parallel to one side of the seat plate, and a stop plate connected between the seat plate and the support plate, the stop plate is located at one end of the seat plate away from the socket assembly, the two ends of the axle of the eccentric gear shaft are respectively rotatably penetrated on the seat plate and the support plate, the second signal connector is provided with a second avoidance hole for avoiding the axle of the eccentric gear shaft, and the two ends of the axle of the eccentric gear shaft are provided with a first operating hole.

[0013] Furthermore, the second signal connector includes a movable plate movably arranged on one side of the seat plate and a signal connecting portion arranged at an end of the movable plate away from the stop plate, the first end of the gear shaft of the spur gear shaft is rotatably arranged on the movable plate, and the second end of the gear shaft of the spur gear shaft is provided with a second operating hole.

[0014] Furthermore, the driving mechanism also includes a second elastic member arranged between the socket and the second signal connector, and the second elastic member applies a second elastic force to the second signal connector in a direction away from the socket to keep the second signal connector in the disconnected position.

[0015] According to another aspect of the utility model, an LED display device is provided, comprising a plurality of display units, each display unit comprising a frame, a plug-in assembly arranged on the frame and a control board arranged in the frame, the plug-in assembly being the plug-in assembly of the above-mentioned LED display device, the frame comprising a first side and a second side arranged opposite to each other, the socket assembly of the plug-in assembly being arranged on the first side, the plug assembly of the plug-in assembly being arranged on the second side, and a first socket connected to a first signal connector of the socket assembly and a second socket connected to a second signal connector of the plug assembly being arranged on the control board.

[0016] According to the technical solution of the utility model, the plug assembly of the LED display device includes: a socket assembly, a plug assembly and a driving mechanism. The socket assembly includes a socket seat and a first signal connector arranged on the socket seat. The plug assembly includes a plug seat and a second signal connector movably arranged on the plug seat, and the second signal connector has a connection position connected to the first signal connector and a disconnection position separated from the first signal connector. The driving mechanism includes an eccentric gear shaft rotatably arranged on the plug seat and a spur gear shaft rotatably arranged on the second signal connector, and the eccentric gear shaft and the spur gear shaft are meshed and driven. On-site personnel can install the socket assembly and the plug assembly between two adjacent display units. When the two adjacent display units are assembled, the on-site personnel operate the eccentric gear shaft to rotate, and the eccentric gear shaft drives the spur gear shaft to rotate when the eccentric gear shaft rotates, and the spur gear shaft drives the second signal connector to move along the moving direction of the second signal connector to drive the second signal connector to move between the connection position and the disconnection position. In this way, there is no need to arrange conductive wires between the socket assembly and the plug assembly, which solves the problem of disorderly wiring. Moreover, when the on-site personnel operate the eccentric gear shaft to rotate, they only need to rotate around the axis of the eccentric gear shaft to drive the eccentric gear shaft to rotate. Compared with the toggle method in the related art, the scope involved is small, and the possibility of interference with other components is reduced. Therefore, the technical solution of the present application effectively solves the problem that the toggle method of the driving handle in the related art involves a wide range and is easy to interfere with other components. 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 A three-dimensional structural schematic diagram of an embodiment of a plug-in assembly of an LED display device according to the utility model is shown;

[0019] Figure 2 Shows Figure 1A schematic cross-sectional view of a plug assembly of a plug assembly of an LED display device;

[0020] Figure 3 Shows Figure 1 A schematic cross-sectional view of a locking structure of a plug-in assembly of an LED display device;

[0021] Figure 4 A rear view schematic diagram of an embodiment of an LED display device according to the utility model is shown.

[0022] The above drawings include the following reference numerals:

[0023] 10. Socket assembly; 11. Socket seat; 12. First signal connector;

[0024] 20. Plug assembly; 21. Plug socket; 211. Seat plate; 212. Support plate; 213. Stop plate; 214. Second avoidance hole; 215. First avoidance hole; 22. Second signal connector; 221. Mounting hole; 222. Accommodating groove; 223. Arc-shaped protrusion; 224. Moving plate; 225. Signal connector;

[0025] 31. eccentric gear shaft; 311. first operating hole; 32. spur gear shaft; 321. second operating hole; 33. second elastic member;

[0026] 41. lock pin; 411. lock body; 412. pin section; 42. lock groove; 43. first elastic member;

[0027] 50. Display unit; 51. Frame; 52. Control board; 521. First socket; 522. Second socket. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figures 1 to 4As shown, the present application provides a plug-in assembly of an LED display device, and the plug-in assembly of the LED display device includes: a socket assembly 10, a plug assembly 20 and a driving mechanism. The socket assembly 10 includes a socket seat 11 and a first signal connector 12 arranged on the socket seat 11. The plug assembly 20 includes a plug seat 21 and a second signal connector 22 movably arranged on the plug seat 21, and the second signal connector 22 has a connection position connected to the first signal connector 12 and a disconnection position separated from the first signal connector 12. The driving mechanism includes an eccentric gear shaft 31 rotatably arranged on the plug seat 21 and a spur gear shaft 32 rotatably arranged on the second signal connector 22, the eccentric gear shaft 31 and the spur gear shaft 32 are meshed and driven, and the eccentric gear shaft 31 drives the spur gear shaft 32 to rotate when the eccentric gear shaft 31 rotates, and the spur gear shaft 32 drives the second signal connector 22 to move along the moving direction of the second signal connector 22, so as to drive the second signal connector 22 to move between the connection position and the disconnection position.

[0030] By applying the technical solution of this embodiment, the on-site personnel can install the socket assembly 10 and the plug assembly 20 between two adjacent display units. When the two adjacent display units are assembled, the on-site personnel operate the eccentric gear shaft 31 to rotate. When the eccentric gear shaft 31 rotates, the spur gear shaft 32 is driven to rotate, and the spur gear shaft 32 drives the second signal connector 22 to move along the moving direction of the second signal connector 22, so as to drive the second signal connector 22 to move between the on position and the off position. In this way, there is no need to arrange the conductive wire between the socket assembly 10 and the plug assembly 20, which solves the problem of disorderly wiring. In addition, when the on-site personnel operate the eccentric gear shaft 31 to rotate, they only need to rotate around the axis of the eccentric gear shaft 31 to drive the eccentric gear shaft 31 to rotate. Compared with the toggle method in the related art, the scope involved is small, and the possibility of interference with the conductive wires in other components of the LED display device is reduced. Therefore, the technical solution of this embodiment effectively solves the problem that the toggle method of the driving handle in the related art involves a wide range and is easy to interfere with other components.

[0031] like Figures 1 to 4As shown, the second signal connector 22 is provided with a mounting hole 221, and the plug assembly of the LED display device also includes a locking structure, which includes a locking pin 41 movably arranged in the mounting hole 221 and a locking groove 42 arranged on the plug socket 21. In this way, the mounting hole 221 can limit the range of movement of the locking pin 41, and prevent the locking pin 41 from being separated from the mounting hole 221 during the movement. The locking pin 41 has an avoidance position separated from the locking groove 42 and a locking position located in the locking groove 42. When the locking pin 41 is in the avoidance position, the spur gear shaft 32 drives the second signal connector 22 to move along the moving direction of the second signal connector 22, and the second signal connector 22 switches between the connected position and the disconnected position. When the locking pin 41 is in the locking position, the second signal connector 22 remains in the connected position. In this way, the setting of the locking structure can ensure that the second signal connector 22 is stably connected to the first signal connector 12, and effectively prevent the second signal connector 22 from loosening when connected to the first signal connector 12, so as to ensure good contact.

[0032] like Figures 1 to 4 As shown, the plug socket 21 is provided with a first avoidance hole 215 connected with the lock slot 42, the lock slot 42 and the lock pin 41 are respectively located on opposite sides of the plug socket 21, and the lock pin 41 includes a lock body 411 and a pin section 412 provided on the lock body 411. The lock body 411 drives the pin section 412 to move, so that when the pin section 412 cooperates with the stopper of the second signal connector 22, the pin section 412 is restricted from moving along the axis of the mounting hole 221, and the lock pin 41 is in the avoidance position, and can prevent the lock pin 41 from being separated from the mounting hole 221. The lock body 411 drives the pin section 412 to move, so that when the pin section 412 passes through the first avoidance hole 215 and rotates a preset angle to be located in the lock slot 42, the lock pin 41 is in the locked position.

[0033] like Figures 1 to 4 As shown, in order to effectively avoid interference between the pin segment 412 and the plug socket 21 during the switching process of the second signal connector 22 between the connected position and the disconnected position, a receiving groove 222 is provided on the side of the second signal connector 22 facing the plug socket 21, and the receiving groove 222 is communicated with the mounting hole 221. When the lock body 411 drives the pin segment 412 to be located in the receiving groove 222, the pin segment 412 cooperates with the second signal connector 22 stop.

[0034] like Figures 1 to 4As shown, the locking structure also includes a first elastic member 43 disposed in the mounting hole 221, and the first elastic member 43 applies a first elastic force to the lock pin 41 in a direction away from the lock slot 42. When the second signal connector 22 is in the on position, the on-site personnel presses the lock pin 41 and overcomes the first elastic force, and rotates the lock pin 41 so that the lock pin 41 is located in the lock slot 42, releases the lock pin 41, and under the action of the first elastic force, the lock pin 41 is kept in the locked position. When the second signal connector 22 needs to be moved from the on position to the off position, the on-site personnel presses the lock pin 41 to disengage the lock pin 41 from the lock slot 42, releases the lock pin 41, and under the action of the first elastic force, the lock pin 41 is kept in the avoidance position.

[0035] like Figures 1 to 4 As shown, in order for the second signal connector 22 to move only along its moving direction, an arc-shaped guide groove is provided on the plug socket 21, and an arc-shaped protrusion 223 is provided on the second signal connector 22. The arc-shaped protrusion 223 cooperates with the arc-shaped guide groove to guide along the moving direction of the second signal connector 22.

[0036] like Figures 1 to 4 As shown, the plug socket 21 includes a seat plate 211, a support plate 212 arranged parallel to one side of the seat plate 211, and a stop plate 213 connected between the seat plate 211 and the support plate 212. The stop plate 213 is located at one end of the seat plate 211 away from the socket assembly 10, and the two ends of the axle of the eccentric gear shaft 31 are rotatably penetrated on the seat plate 211 and the support plate 212, respectively, so that the seat plate 211 and the support plate 212 can support the eccentric gear shaft 31, so that the eccentric gear shaft 31 can be stably and rotatably located on the plug socket 21. The second signal connector 22 is provided with a second avoidance hole 214 for avoiding the axle of the eccentric gear shaft 31, so that when the second signal connector 22 switches between the on position and the off position, the second signal connector 22 can avoid the eccentric gear shaft 31 to avoid interference. Both ends of the axle of the eccentric gear shaft 31 are provided with a first operating hole 311. On-site personnel can use an operating tool to insert into the first operating hole 311 to drive the eccentric gear shaft 31, so that the eccentric gear shaft 31 rotates around its axis. The operating tool is preferably a hexagonal wrench, and the first operating hole 311 is preferably a hexagonal hole matched with the hexagonal wrench.

[0037] like Figures 1 to 4As shown, the second signal connector 22 includes a moving plate 224 movably arranged on one side of the seat plate 211 and a signal connecting portion 225 arranged at one end of the moving plate 224 away from the stop plate 213, the first end of the gear shaft of the spur gear shaft 32 is rotatably arranged on the moving plate 224, and the second end of the gear shaft of the spur gear shaft 32 is provided with a second operating hole 321. On-site personnel can use an operating tool to insert into the second operating hole 321 to drive the spur gear shaft 32, so that the spur gear shaft 32 rotates on the eccentric gear shaft 31, and rely on the reverse thrust generated during the rotation process to push the spur gear shaft 32 to drive the second signal connector 22 to move. The operating tool is preferably a hexagonal wrench, and the second operating hole 321 is preferably an inner hexagonal hole that cooperates with the hexagonal wrench.

[0038] like Figures 1 to 4 As shown, the driving mechanism further includes a second elastic member 33 disposed between the socket seat 11 and the second signal connector 22, and the second elastic member 33 applies a second elastic force in a direction away from the socket seat 11 to the second signal connector 22, so as to keep the second signal connector 22 in the disconnected position. In this way, under the action of the second elastic force of the second elastic member 33, the stability of the second signal connector 22 in the disconnected position is improved. In this embodiment, the first elastic member and the second elastic member are preferably springs.

[0039] The present application also provides an LED display device, such as Figure 1 and Figure 4 As shown, the LED display device includes a plurality of display units 50, each display unit 50 includes a frame 51, a plug-in assembly arranged on the frame 51, and a control board 52 arranged in the frame 51. The plug-in assembly is the plug-in assembly of the above-mentioned LED display device, the frame 51 includes a first side and a second side arranged opposite to each other, the socket assembly 10 of the plug-in assembly is arranged on the first side, the plug assembly 20 of the plug-in assembly is arranged on the second side, and the control board 52 is provided with a first socket 521 connected to the first signal connector 12 of the socket assembly 10 and a second socket 522 connected to the second signal connector 22 of the plug assembly 20. Since the plug-in assembly of the above-mentioned LED display device can solve the problem in the related art that the toggle mode of the driving handle involves a wide range and is easy to interfere with other components, the LED display device including the plug-in assembly can solve the same technical problem.

[0040] The action principle of the plug-in assembly of the LED display device of this embodiment is described as follows: the plug socket 21 and the second signal connector 22 are assembled and installed inside the frame, the second signal connector 22 and the first signal connector 12 are not pressed together, and the spring pin of the second signal connector 22 is lower than the metal surface of the frame. Because the eccentric gear shaft 31 is assembled with the plug socket 21, the spur gear shaft 32 is meshed with the eccentric gear shaft 31, and the eccentric gear shaft 31 and the spur gear shaft 32 are respectively assembled and combined by shaft pins. The overall assembly is completed, and the second signal connector 22 is in the disconnected position. At this time, the hexagonal hole of the eccentric gear shaft 31 is rotated with a hexagonal wrench. The eccentric gear shaft 31 and the spur gear shaft 32 are meshed and rotate synchronously. The meshing rotation of the eccentric gear shaft 31 and the spur gear shaft 32 drives the spur gear shaft 32 moves upward, the spur gear shaft 32 moves upward to drive the second signal connector 22 to move upward, the synchronous arc protrusion 223 and the arc guide groove are guided and matched along the moving direction of the second signal connector 22, the synchronous second signal connector 22 moves upward as a whole and compresses the spring, the second signal connector 22 moves upward and is connected with the PCB of the first signal connector 12, and the locking pin is pressed by a hexagonal wrench to pass through the first avoidance hole and rotate the locking pin to lock, that is, the second signal connector 22 is kept in the connected position and maintains a steady state, the synchronous second signal connector 22 moves until the spring pin of the second signal connector 22 contacts the PCB board of the first signal connector 12 and ensures that the connection is completed under pressure, and the synchronous frame position is realized by limit control Pin spring pin The eccentric gear shaft 31 is synchronously stopped from rotating, and the eccentric gear shaft 31 is in meshing relationship with the spur gear shaft 32. The rotating lock pin is in a locked position and ensures the stability of the second signal connector 22. Therefore, the eccentric gear shaft 31 and the spur gear shaft 32 are in a stable state, and the spring further assists the second signal connector 22 to balance and ensure that the overall connection is in a balanced state. Therefore, the Pin spring pin of the second signal connector 22 is pressed into place with the gold-plated position of the PCB board of the first signal connector 12 and ensures stability. This is the second signal connector 22 and the first signal connector 12. The principle process of the press-fitting action of the first signal connector 12, on the contrary, it is necessary to disassemble the upper and lower frames to separate the press-fit connection between the second signal connector 22 and the first signal connector 12, first press the lock pin and rotate it to the first avoidance hole and reset it with the spring, the lock pin returns to the initial position and releases the locked state, use a hexagonal wrench to rotate the eccentric gear shaft 31 in the opposite direction, the eccentric gear shaft 31 drives the spur gear shaft 32 to rotate and the second signal connector 22 moves downward along the guide rail path, the spring assists to return to the initial position, and the initial position setting is realized through the limit position of the plug socket 21, that is, the second signal connector 22 is completely separated from the first signal connector 12 and the second signal connector 22 returns to the disconnected position, and ensures that the Pin spring pin of the second signal connector 22 is lower than the frame plane,The eccentric gear shaft 31 and the spur gear shaft 32 are in a stable meshing state, and the spring assists in returning to the initial position, so the second signal connector 22 is in a stable state. The above is the principle of the separation action of the second signal connector 22 and the first signal connector 12. The above description explains: the press-fit separation action process of the second signal connector 22 and the first signal connector 12, and the signal connection and disconnection can be achieved through the eccentric gear shaft 31, the spur gear shaft 32, the guide matching structure and the locking structure, which will not be repeated later. ,

[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0042] 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.

[0043] 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. A plug-in assembly for an LED display device, characterized in that: include: A socket assembly (10) comprises a socket seat (11) and a first signal connecting member (12) arranged on the socket seat (11); A plug assembly (20), comprising a plug socket (21) and a second signal connector (22) movably disposed on the plug socket (21), wherein the second signal connector (22) has a connection position for connecting to the first signal connector (12) and a disconnection position for separating from the first signal connector (12); The driving mechanism comprises an eccentric gear shaft (31) rotatably arranged on the plug socket (21) and a spur gear shaft (32) rotatably arranged on the second signal connector (22); the eccentric gear shaft (31) and the spur gear shaft (32) are meshed and transmitted with each other; when the eccentric gear shaft (31) rotates, the spur gear shaft (32) is driven to rotate; and the spur gear shaft (32) drives the second signal connector (22) to move along the moving direction of the second signal connector (22), so as to drive the second signal connector (22) to move between the connected position and the disconnected position.

2. The plug-in assembly of the LED display device according to claim 1, characterized in that: The second signal connector (22) is provided with a mounting hole (221), and the plug-in assembly of the LED display device further comprises a locking structure, wherein the locking structure comprises a locking pin (41) movably arranged in the mounting hole (221) and a locking slot (42) arranged on the plug socket (21), wherein the locking pin (41) has an escape position disengaged from the locking slot (42) and a locking position located in the locking slot (42), and when the locking pin (41) is in the escape position, the second signal connector (22) switches between the connected position and the disconnected position, and when the locking pin (41) is in the locking position, the second signal connector (22) remains in the connected position.

3. The plug-in assembly of the LED display device according to claim 2, characterized in that: The plug socket (21) is provided with a first avoidance hole (215) connected with the lock groove (42); the lock groove (42) and the lock pin (41) are respectively located on opposite sides of the plug socket (21); the lock pin (41) comprises a lock body (411) and a pin segment (412) arranged on the lock body (411); the lock body (411) drives the pin segment (412) to move, so that when the pin segment (412) is engaged with the second signal connector (22), the lock pin (41) is in the avoidance position; the lock body (411) drives the pin segment (412) to move, so that when the pin segment (412) passes through the first avoidance hole (215) and rotates to a preset angle to be located in the lock groove (42), the lock pin (41) is in the locking position.

4. The plug-in assembly of the LED display device according to claim 3, characterized in that: A receiving groove (222) is provided on a side of the second signal connector (22) facing the plug socket (21), and the receiving groove (222) is communicated with the mounting hole (221). When the lock body (411) drives the pin section (412) to be located in the receiving groove (222), the pin section (412) and the second signal connector (22) are engaged in a stopper manner.

5. The plug-in assembly of the LED display device according to any one of claims 2 to 4, characterized in that: The locking structure further comprises a first elastic member (43) arranged in the mounting hole (221), wherein the first elastic member (43) applies a first elastic force to the locking pin (41) in a direction away from the locking slot (42), so as to keep the locking pin (41) in the avoidance position or the locking position.

6. The plug-in assembly of the LED display device according to any one of claims 1 to 4, characterized in that: The plug socket (21) is provided with an arc-shaped guide groove, and the second signal connecting piece (22) is provided with an arc-shaped protrusion (223), and the arc-shaped protrusion (223) cooperates with the arc-shaped guide groove to guide along the moving direction of the second signal connecting piece (22).

7. The plug-in assembly of the LED display device according to any one of claims 1 to 4, characterized in that: The plug socket (21) comprises a seat plate (211), a support plate (212) arranged parallel to one side of the seat plate (211), and a stop plate (213) connected between the seat plate (211) and the support plate (212), wherein the stop plate (213) is located at an end of the seat plate (211) away from the socket assembly (10), and the two ends of the axle of the eccentric gear shaft (31) are rotatably inserted into the seat plate (211) and the support plate (212), respectively, and the second signal connector (22) is provided with a second avoidance hole (214) for avoiding the axle of the eccentric gear shaft (31), and the two ends of the axle of the eccentric gear shaft (31) are both provided with a first operating hole (311).

8. The plug-in assembly of the LED display device according to claim 7, characterized in that: The second signal connecting member (22) comprises a movable plate (224) movably arranged on one side of the seat plate (211) and a signal connecting portion (225) arranged at an end of the movable plate (224) away from the stop plate (213); the first end of the gear shaft of the spur gear shaft (32) is rotatably arranged on the movable plate (224); and the second end of the gear shaft of the spur gear shaft (32) is provided with a second operating hole (321).

9. The plug-in assembly of the LED display device according to any one of claims 1 to 4, characterized in that: The driving mechanism further comprises a second elastic member (33) arranged between the socket seat (11) and the second signal connector (22), wherein the second elastic member (33) applies a second elastic force to the second signal connector (22) in a direction away from the socket seat (11), so as to keep the second signal connector (22) in the disconnected position.

10. An LED display device, comprising a plurality of display units (50), each of the display units (50) comprising a frame (51), a plug-in assembly arranged on the frame (51), and a control board (52) arranged in the frame (51), characterized in that: The plug-in assembly is a plug-in assembly of an LED display device according to any one of claims 1 to 9, the frame (51) comprises a first side and a second side arranged opposite to each other, the socket assembly (10) of the plug-in assembly is arranged on the first side, the plug assembly (20) of the plug-in assembly is arranged on the second side, and the control board (52) is provided with a first socket (521) connected to the first signal connector (12) of the socket assembly (10) for signal connection and a second socket (522) connected to the second signal connector (22) of the plug assembly (20) for signal connection.

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