CN219874318U - LED display screen, socket mechanism and plug mechanism thereof - Google Patents

Abstract

The utility model provides an LED display screen, a socket mechanism and a plug-in mechanism thereof, wherein the socket mechanism of the LED display screen comprises: the base body is provided with a first slot and a second slot at intervals; the first conductor plug connector is arranged in the seat body, and the part of the first conductor plug connector extending into the first slot is a first plug end; the second conductor plug connector is arranged in the seat body, and the part of the second conductor plug connector extending into the first slot is a second plug end; the blocking piece is movably arranged in the seat body and is provided with a first blocking position which stretches into the second slot and avoids the first slot and a second blocking position which stretches into the first slot and avoids the second slot. The technical scheme of the utility model effectively solves the problem that the prior art cannot recognize whether the electric energy passing through the socket is an external power supply or provided by another LED display unit to the LED display unit is easy to operate by mistake.

Description

LED display screen, socket mechanism and plug mechanism thereof

Technical Field

The utility model relates to the technical field of LED display, in particular to an LED display screen, and a socket mechanism and a plug-in mechanism thereof.

Background

In the field of LED (Light-Emitting Diode) display technology, an LED display device includes a plurality of LED display units arranged side by side. When the adjacent two LED display units are assembled, the adjacent two LED display units are connected or disconnected through the socket so as to control the two adjacent two LED display units to be powered on or powered off.

If one LED display unit needs to be supplied with power by an external power supply, the LED display unit can only be plugged into the socket by the external power supply to supply power to the LED display unit, and the other LED display unit is forbidden to supply power to the LED display unit through the socket. However, since it cannot be identified whether the power passing through the socket is supplied from an external power source or another LED display unit to the LED display unit, misoperation is easy, and there is a risk that the alternating current is shorted.

Disclosure of Invention

The utility model mainly aims to provide an LED display screen, a socket mechanism and a plug-in mechanism thereof, so as to solve the problem that the prior art cannot identify whether electric energy passing through a socket is an external power supply or provided by another LED display unit to the LED display unit, and misoperation is easy.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a socket mechanism of an LED display screen, comprising: the base body is provided with a first slot and a second slot at intervals; the first conductor plug connector is arranged in the seat body, and the part of the first conductor plug connector extending into the first slot is a first plug end; the second conductor plug connector is arranged in the seat body, and the part of the second conductor plug connector extending into the first slot is a second plug end; the blocking piece is movably arranged in the seat body and is provided with a first blocking position which stretches into the second slot and avoids the first slot and a second blocking position which stretches into the first slot and avoids the second slot, wherein when the first plug is inserted into the first slot and is in plug-in fit with the first plug-in end, the blocking piece is kept at the first blocking position and blocks the second plug from being inserted into the second slot; when the second plug is inserted into the second slot and is in plug-in fit with the second plug-in end, the blocking piece is kept at a second blocking position and blocks the first plug from being inserted into the first slot.

Further, the first slot has a first notch for inserting the first plug, the second slot has a second notch for inserting the second plug, the direction of orientation of the second notch is perpendicular to the direction of orientation of the first notch, the blocking member is disposed obliquely with respect to both the axis of the first notch and the axis of the second notch, and the blocking member is movable in its own oblique direction.

Further, a limiting long hole is formed in the blocking piece, a blocking pin penetrating through the limiting long hole is arranged in the base body, the blocking piece is located at a first blocking position when the first end wall of the limiting long hole is in blocking fit with the blocking pin, and the blocking piece is located at a second blocking position when the second end wall of the limiting long hole is in blocking fit with the blocking pin.

Further, a mounting hole is further formed in the base body, the mounting hole is communicated with the first slot and the second slot, the blocking piece is movably arranged in the mounting hole, the first slot is provided with a first notch for inserting the first plug, the second slot is provided with a second notch for inserting the second plug, and the axis of the mounting hole is obliquely arranged relative to the axis of the first notch and the axis of the second notch.

Further, the blocking member includes a blocking post that is in anti-rotation engagement with the mounting hole.

Further, the hole wall of the mounting hole comprises a first rotation stopping inclined surface, and the outer side wall of the blocking column comprises a second rotation stopping inclined surface which is matched with the first rotation stopping inclined surface in a rotation stopping mode.

Further, the surface of the blocking piece facing the first slot is provided with a first avoidance straight surface, and the surface of the blocking piece facing the second slot is provided with a second avoidance straight surface.

According to another aspect of the utility model, a plug-in mechanism of an LED display screen is provided, which comprises a socket mechanism, a first plug and a second plug, wherein the socket mechanism is the socket mechanism of the LED display screen.

Further, the first plug includes: a seat body; a third conductor plug movably disposed in the seat body; the driving structure is rotatably arranged on the seat body and can drive the third conductor plug connector to move, when the blocking member is positioned at the first blocking position, the third conductor plug connector is provided with a conducting position and a disconnecting position, when the third conductor plug connector is positioned at the conducting position, the third conductor plug connector extends out of the seat body to be in plug fit with the first plug end, and when the third conductor plug connector is positioned at the disconnecting position, the third conductor plug connector is retracted into the seat body to be separated from the first plug end.

According to another aspect of the present utility model, there is provided an LED display screen, including a plurality of LED display units and a plugging mechanism disposed between two adjacent LED display units, the plugging mechanism being a plugging mechanism of the LED display screen, a socket mechanism of the plugging mechanism being disposed on a first side of one of the two adjacent LED display units adjacent to the other LED display unit, and a first plug of the plugging mechanism being disposed on a second side of the other of the two adjacent LED display units adjacent to the one LED display unit.

By applying the technical scheme of the utility model, the socket mechanism of the LED display screen comprises: the base, first conductor plug connector, second conductor plug connector and blocking piece. The base body is provided with a first slot and a second slot at intervals. The first conductor plug connector is arranged in the base body, and the part of the first conductor plug connector extending into the first slot is a first plug end. The second conductor plug connector is arranged in the seat body, and the part of the second conductor plug connector extending into the first slot is a second plug end. The blocking piece is movably arranged in the seat body and is provided with a first blocking position which stretches into the second slot and avoids the first slot and a second blocking position which stretches into the first slot and avoids the second slot. One LED display unit can be electrically connected with the first conductor plug connector and the second conductor plug connector, the other LED display unit is electrically connected with the first plug, and the external power supply is electrically connected with the second plug. When the first plug is inserted into the first slot and is in plug-in fit with the first plug-in end, the blocking piece is kept at a first blocking position and blocks the second plug from being inserted into the second slot. The external power supply is not able to supply power to this LED display unit at this time, so that only another LED display unit supplies power to this LED display unit via the socket mechanism of the LED display screen. When the second plug is inserted into the second slot and is in plug-in fit with the second plug-in end, the blocking piece is kept at a second blocking position and blocks the first plug from being inserted into the first slot. At this time, the other LED display unit cannot supply power to this LED display unit, so that only external power is supplied to this LED display unit through the socket mechanism of the LED display screen. Therefore, whether the electric energy passing through the socket is an external power supply or provided by another LED display unit to the LED display unit is not needed to be identified, misoperation is avoided, and the risk of short circuit of alternating current is reduced. Therefore, the technical scheme of the utility model effectively solves the problem that the misoperation is easy because the electric energy passing through the socket cannot be identified in the related technology is provided by an external power supply or another LED display unit to the LED display unit.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a schematic rear view of an embodiment of an LED display screen according to the present utility model;

FIG. 2 shows a schematic cross-sectional view of the LED display screen of FIG. 1 in the A-A direction;

FIG. 3 shows a partial enlarged schematic view at B of the LED display screen of FIG. 2;

FIG. 4 shows a schematic perspective view of an embodiment of a socket mechanism of an LED display according to the present utility model;

FIG. 5 shows a schematic side view of the socket mechanism of the LED display screen of FIG. 4;

FIG. 6 shows a schematic cross-sectional view in the C-C direction of the socket mechanism of the LED display screen of FIG. 5;

fig. 7 shows a schematic rear view of a first plug of an embodiment of a plugging mechanism of an LED display according to the utility model;

fig. 8 shows a schematic top view of the first plug of fig. 7;

fig. 9 shows a schematic cross-sectional view in the D-D direction of the first plug of fig. 8.

Wherein the above figures include the following reference numerals:

10. a base; 11. a first slot; 12. a second slot; 13. a mounting hole; 14. a stop pin; 15. a first rotation stopping inclined plane;

21. a first conductor plug; 211. a first plug end; 22. a second conductor plug; 221. the second plug end;

30. a blocking member; 31. a blocking column; 311. a second rotation stopping inclined plane; 32. a limiting slot hole; 33. the first avoiding straight surface; 34. a second avoiding straight surface;

40. a first plug; 41. a seat body; 42. a third conductor plug; 43. a driving structure; 431. swing arms; 432. a drive shaft; 433. an operation shaft; 44. a chute;

50. a second plug;

60. and an LED display unit.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 7, the socket mechanism of the LED display screen of the present embodiment includes: the base 10, the first conductor plug 21, the second conductor plug 22 and the blocking member 30. The base 10 is provided with a first slot 11 and a second slot 12 at intervals. The first conductor plug 21 is disposed in the housing 10, and a portion of the first conductor plug 21 extending into the first slot 11 is a first plug end 211. The second conductor plug 22 is disposed in the housing 10, and a portion of the second conductor plug 22 extending into the first slot 11 is a second plug end 221. The blocking member 30 is movably disposed in the seat body 10, and the blocking member 30 has a first blocking position extending into the second slot 12 and avoiding the first slot 11, and a second blocking position extending into the first slot 11 and avoiding the second slot 12. Wherein, when the first plug 40 is inserted into the first slot 11 and is in plug-in engagement with the first plug-in end 211, the blocking member 30 is maintained at the first blocking position and blocks the second plug 50 from being inserted into the second slot 12; when the second plug 50 is inserted into the second slot 12 and is mated with the second mating end 221, the blocking member 30 remains in the second blocking position and blocks insertion of the first plug 40 into the first slot 11.

By applying the technical scheme of the embodiment, the socket mechanism of the LED display screen comprises: the base 10, the first conductor plug 21, the second conductor plug 22 and the blocking member 30. One LED display unit 60 may be electrically connected to the first conductor plug 21 and the second conductor plug 22, the other LED display unit 60 may be electrically connected to the first plug 40, and the external power source may be electrically connected to the second plug 50. Wherein, when the first plug 40 is inserted into the first slot 11 and is in plug-in engagement with the first plug-in end 211, the blocking member 30 is maintained in the first blocking position and blocks the second plug 50 from being inserted into the second slot 12. The external power supply is not able to supply power to this LED display unit 60 at this time, so that only another LED display unit 60 supplies power to this LED display unit 60 via the socket mechanism of the LED display screen. When the second plug 50 is inserted into the second slot 12 and is mated with the second mating end 221, the blocking member 30 remains in the second blocking position and blocks insertion of the first plug 40 into the first slot 11. At this time, the other LED display unit 60 cannot supply power to the LED display unit 60, so that only external power is supplied to the LED display unit 60 through the socket mechanism of the LED display screen. In this way, it is no longer necessary to identify whether the electrical energy passing through the socket is an external power supply or that another LED display unit 60 provides this LED display unit 60, avoiding misoperations and reducing the risk of ac power being shorted. Therefore, the technical scheme of the embodiment effectively solves the problem that whether the electric energy passing through the socket is an external power supply or provided by another LED display unit to the LED display unit is easy to operate by mistake in the related technology.

As shown in fig. 1 to 7, the first slot 11 has a first notch for inserting the first plug 40, and the second slot 12 has a second notch for inserting the second plug 50, the second notch being oriented in a direction perpendicular to the orientation direction of the first notch in order that the first plug 40 and the second plug 50 can be inserted into the corresponding first slot 11 and second slot 12 from different directions. Under the condition that the second plug 50 is not inserted into the second slot 12, when the first plug 40 is inserted into the first slot 11 and is in plug-in fit with the first plug-in end 211, the blocking member 30 is obliquely arranged relative to the axis of the first slot and the axis of the second slot, so that the blocking member 30 moves along the oblique direction, and the first plug 40 can push the blocking member 30 to move into the second slot 12, so that the blocking member can be in the first blocking position. And since the first plug 40 is in plug-in engagement with the first plug end 211, the first plug 40 can also stop the blocking member 30, preventing the blocking member 30 from backing out, so that the blocking member 30 can be maintained in the first blocking position. Under the condition that the first plug 40 is not inserted into the first slot 11, when the second plug 50 is inserted into the second slot 12 and is in plug-in fit with the second plug-in end 221, the blocking member 30 is obliquely arranged relative to the axis of the first slot and the axis of the second slot, and the blocking member 30 can move along the oblique direction of the blocking member 30, so that the second plug 50 pushes the blocking member 30 to move into the first slot 11, and can be in the second blocking position. And since the second plug 50 is in plug-in engagement with the second plug end 221, the second plug 50 can also stop the blocking member 30, preventing the blocking member 30 from backing out, so that the blocking member 30 can be held in the second blocking position.

As shown in fig. 3 to 7, the blocking member 30 is provided with a limiting long hole 32, the seat body 10 is internally provided with a stop pin 14 penetrating through the limiting long hole 32, the blocking member 30 is in a first blocking position when the first end wall of the limiting long hole 32 is in stop fit with the stop pin 14, and the blocking member 30 is in a second blocking position when the second end wall of the limiting long hole 32 is in stop fit with the stop pin 14. The engagement of the stopper pin 14 with the stopper long hole 32 can restrict the movement range of the stopper 30 with respect to the stopper pin 14, preventing the stopper 30 from being out of the first blocking position or the second blocking position. The above-described stopper long hole 32 includes a long axis and a short axis, and the length of the long axis is longer than that of the short axis. The stop pin 14 is preferably a removable screw.

As shown in fig. 3 to 7, in order to facilitate the blocking member 30 to smoothly move in the housing 10, a mounting hole 13 communicating the first slot 11 and the second slot 12 is further provided in the housing 10, and the blocking member 30 is movably provided in the mounting hole 13. The first slot 11 has a first slot for inserting the first plug 40, and the second slot 12 has a second slot for inserting the second plug 50. Since the axis of the mounting hole 13 is disposed obliquely with respect to both the axis of the first notch and the axis of the second notch, the movement locus of the blocking member 30 is an oblique direction along the axis of the mounting hole 13, facilitating the reciprocating movement of the blocking member 30 itself in the oblique direction between the first blocking position and the second blocking position.

As shown in fig. 3 to 7, the blocking member 30 includes a blocking post 31 for convenience of processing. The blocking post 31 is in a stop-and-turn engagement with the mounting hole 13 such that the blocking post 31 moves only in the mounting hole 13, preventing the blocking post 31 from rotating in the mounting hole 13, thereby enabling the blocking post 31 to be stably maintained in the first blocking position or the second blocking position.

As shown in fig. 3 to 7, the hole wall of the mounting hole 13 includes a first rotation stopping slope 15, and the outer side wall of the blocking post 31 includes a second rotation stopping slope 311 that is in rotation stopping fit with the first rotation stopping slope 15. Because the first rotation stopping inclined surface 15 and the second rotation stopping inclined surface 311 are in rotation stopping matching, the structure is simple, the processing is convenient, the forming is simple, and the implementation is easy.

As shown in fig. 3 to 7, in order to prevent the surface of the blocking member 30 facing the first slot 11 from being scratched by the sharpness of the surface of the first plug 40 during the process of inserting or removing the first plug 40 into or from the first slot 11, the surface of the blocking member 30 facing the first slot 11 is provided with a first avoidance straight surface 33. In order to prevent the surface of the blocking member 30 facing the second slot 12 from being sharpened and scratching the outer surface of the second plug 50 during the process of inserting or removing the second plug 50 into or from the second slot 12, the surface of the blocking member 30 facing the second slot 12 is provided with a second avoidance straight surface 34.

The utility model also provides a plugging mechanism of the LED display screen, as shown in fig. 3 to 9, the plugging mechanism of the LED display screen of the embodiment comprises a socket mechanism, a first plug 40 and a second plug 50, and the socket mechanism is the socket mechanism of the LED display screen. The socket mechanism of the LED display screen can solve the problem that whether the electric energy passing through the socket is an external power supply or provided by another LED display unit to the LED display unit can not be identified in the related technology, and misoperation is easy, so that the plug-in mechanism of the LED display screen with the socket mechanism can solve the same technical problem.

As shown in fig. 7 to 9, the first plug 40 includes: the socket body 41, the third conductor plug 42 and the driving structure 43. The third conductor plug 42 is movably disposed within the socket body 41. The driving structure 43 is rotatably provided on the seat body 41 and is capable of driving the third conductor plug 42 to move. When the blocking member 30 is in the first blocking position, the third conductor plug 42 has an on position and an off position, when the third conductor plug 42 is in the on position, the third conductor plug 42 extends out of the seat body 41 to be in plug-in engagement with the first plug end 211, and when the third conductor plug 42 is in the off position, the third conductor plug 42 is retracted into the seat body 41 to be separated from the first plug end 211.

In this embodiment, the first and second mating ends 211 and 221 are each preferably a crown spring female copper pin, and the second and third conductor plugs 50 and 42 each have a crown spring male copper pin that is in mating engagement with the crown spring female copper pin.

As shown in fig. 7 to 9, in the present embodiment, the driving structure 43 includes an operation shaft 433 and a swing arm 431. The operating shaft 433 is rotatably provided on the seat body 41 such that the operating shaft 433 can rotate with respect to the seat body 41. The first end of the swing arm 431 is connected with the operation shaft 433, the outer side wall of the third conductor plug 42 is provided with a driving shaft 432, the second end of the swing arm 431 is sleeved outside the driving shaft 432, and the operation shaft 433 rotates to drive the third conductor plug 42 to move through the swing arm 431, so that the third conductor plug 42 is switched between the on position and the off position. In this way, when the operating shaft 433 rotates, the swing arm 431 is driven to rotate with the operating shaft 433 as a rotation center, and the second end of the swing arm 431 drives the third conductor plug 42 to move through the driving shaft 432, so that the third conductor plug 42 in the third conductor plug 42 can be switched between the on position and the off position. The seat body 41 is provided with a sliding groove 44 slidably engaged with the driving shaft 432, so that when the third conductor plug 42 moves, the driving shaft 432 on the third conductor plug 42 can move in the sliding groove 44 on the seat body 41, limiting the movement range and movement direction of the third conductor plug 42, so as to guide the movement of the third conductor plug 42, and enable the third conductor plug 42 to move along the extending direction of the sliding groove 44.

As shown in fig. 1 to 9, when the second plug 50 is not inserted into the second slot 12, the alignment and installation of the two adjacent LED display panels are completed, the socket mechanism is aligned with the first plug 40, the hexagonal hole of the operating shaft 433 is rotated by a hexagonal wrench, and the swing arm 431 is rotated upward to drive the third conductor plug 42 to move upward. The third conductor plug 42 is synchronously pushed to move the blocking member 30 upwards towards the second slot 12, and the third conductor plug 42 moves upwards to realize plug-in fit with the first plug end 211. After the third conductor plug 42 pushes the blocking member 30 to the first blocking position and stops the blocking member 30, the blocking member 30 is prevented from moving downward, so that the blocking member 30 is maintained in the first blocking position. While blocking member 30 remains in the first blocking position to block insertion of second plug 50 into second socket 12. This operation enables power communication transmission between two adjacent LED displays.

As shown in fig. 1 to 9, when the second plug 50 is inserted into the second slot 12, the second plug 50 pushes the blocking member 30 to move downward toward the first slot 11, and when the second plug 50 is in plug-in engagement with the second plug end 221, the second plug 50 pushes the blocking member 30 to reach the second blocking position, and then the blocking member 30 is blocked by the second plug 50 to move upward, so that the blocking member 30 is maintained at the second blocking position. At this time, assuming that the alignment and installation of the two adjacent LED display screens are completed, the socket mechanism and the first plug 40 are aligned, the hexagonal hole of the operating shaft 433 is rotated by a hexagonal wrench, and the swing arm 431 is rotated upward to drive the third conductor plug 42 to move upward. The third conductor plug connector 42 is propped against the blocking piece 30 in the upward movement process, the third conductor plug connector 42 cannot continue to move upward, the third conductor plug connector 42 and the first plug connector end 211 cannot be in plug-in fit, and therefore when the second plug 50 is inserted into the second slot 12 and the first plug 40 cannot be inserted into the first slot 11, misoperation prevention function is achieved.

The utility model also provides an LED display screen, as shown in fig. 1 to 3, the LED display screen comprises a plurality of LED display units 60 and a plugging mechanism arranged between two adjacent LED display units 60, wherein the plugging mechanism is the plugging mechanism of the LED display screen, the socket mechanism of the plugging mechanism is arranged on a first side edge of one LED display unit 60 adjacent to the other LED display unit 60 in the two adjacent LED display units 60, and the first plug 40 of the plugging mechanism is arranged on a second side edge of the other LED display unit 60 adjacent to the one LED display unit 60 in the two adjacent LED display units 60. The plugging mechanism of the LED display screen can solve the problem that whether the electric energy passing through the socket is an external power supply or provided by another LED display unit to the LED display unit can not be identified in the related technology, and misoperation is easy, so that the LED display screen with the plugging mechanism can solve the same technical problem. The two adjacent LED display units 60 are an upper LED display unit 60 and a lower LED display unit 60 that are disposed up and down, the first side is a lower side of the upper LED display unit 60, and the second side is an upper side of the lower LED display unit 60.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A socket mechanism for an LED display screen, comprising:

the device comprises a base body (10), wherein a first slot (11) and a second slot (12) are arranged on the base body (10) at intervals;

the first conductor plug connector (21) is arranged in the base body (10), and the part of the first conductor plug connector (21) extending into the first slot (11) is a first plug end (211);

the second conductor plug connector (22) is arranged in the base body (10), and the part of the second conductor plug connector (22) extending into the first slot (11) is a second plug end (221);

a blocking member (30) movably disposed in the housing (10), the blocking member (30) having a first blocking position extending into the second slot (12) and out of the first slot (11), and a second blocking position extending into the first slot (11) and out of the second slot (12),

wherein, when a first plug (40) is inserted into the first slot (11) and is in plug-in engagement with the first plug-in end (211), the blocking member (30) remains in the first blocking position and blocks insertion of a second plug (50) into the second slot (12); when the second plug (50) is inserted into the second slot (12) and is in plug-in engagement with the second plug-in end (221), the blocking member (30) remains in the second blocking position and blocks insertion of the first plug (40) into the first slot (11).

2. The socket mechanism of an LED display screen according to claim 1, wherein the first slot (11) has a first notch for inserting the first plug (40), the second slot (12) has a second notch for inserting the second plug (50), the second notch is oriented in a direction perpendicular to the first notch, the blocking member (30) is disposed obliquely with respect to both the axis of the first notch and the axis of the second notch, and the blocking member (30) is movable in a self-oblique direction.

3. The socket mechanism of an LED display screen according to claim 1, wherein a limiting long hole (32) is formed in the blocking member (30), a stop pin (14) penetrating through the limiting long hole (32) is arranged in the base body (10), the blocking member (30) is in the first blocking position when a first end wall of the limiting long hole (32) is in stop fit with the stop pin (14), and the blocking member (30) is in the second blocking position when a second end wall of the limiting long hole (32) is in stop fit with the stop pin (14).

4. The socket mechanism of an LED display screen according to claim 1, wherein a mounting hole (13) communicating the first slot (11) and the second slot (12) is further provided in the housing (10), the blocking member (30) is movably provided in the mounting hole (13), the first slot (11) has a first notch for inserting the first plug (40), the second slot (12) has a second notch for inserting the second plug (50), and the axis of the mounting hole (13) is inclined with respect to both the axis of the first notch and the axis of the second notch.

5. The socket mechanism of an LED display screen according to claim 4, wherein the blocking member (30) includes a blocking post (31), the blocking post (31) being in a non-rotational fit with the mounting hole (13).

6. The socket mechanism of an LED display screen according to claim 5, wherein the hole wall of the mounting hole (13) includes a first rotation stopping inclined surface (15), and the outer side wall of the blocking post (31) includes a second rotation stopping inclined surface (311) which is in rotation stopping fit with the first rotation stopping inclined surface (15).

7. The socket mechanism of an LED display screen according to claim 1, wherein a first avoidance straight face (33) is provided on a surface of the blocking member (30) facing the first slot (11), and a second avoidance straight face (34) is provided on a surface of the blocking member (30) facing the second slot (12).

8. A plug-in mechanism for an LED display screen, comprising a socket mechanism, a first plug (40) and a second plug (50), characterized in that the socket mechanism is a socket mechanism for an LED display screen according to any one of claims 1 to 7.

9. The plug-in mechanism of an LED display screen according to claim 8, wherein the first plug (40) comprises:

a seat body (41);

a third conductor plug (42) movably disposed within the seat body (41);

the driving structure (43) is rotatably arranged on the seat body (41) and can drive the third conductor plug connector (42) to move, when the blocking piece (30) is in the first blocking position, the third conductor plug connector (42) has a conducting position and a disconnecting position, when the third conductor plug connector (42) is in the conducting position, the third conductor plug connector (42) stretches out of the seat body (41) to be in plug fit with the first plug end (211), and when the third conductor plug connector (42) is in the disconnecting position, the third conductor plug connector (42) is retracted into the seat body (41) to be separated from the first plug end (211).

10. An LED display screen comprising a plurality of LED display units (60) and a plugging mechanism arranged between two adjacent LED display units (60), characterized in that the plugging mechanism is a plugging mechanism of the LED display screen according to claim 8 or 9, a socket mechanism of the plugging mechanism is arranged on a first side edge of one of the two adjacent LED display units (60) adjacent to the other LED display unit (60), and a first plug (40) of the plugging mechanism is arranged on a second side edge of the other of the two adjacent LED display units (60) adjacent to the one LED display unit (60).