Leveling assembly and LED display screen with same

Abstract

The utility model provides a leveling assembly and an LED display screen with the leveling assembly, and the leveling assembly is characterized in that when a limiting part is located at a limiting position, the limiting part limits the backward movement of a first mounting seat relative to a second mounting seat; the first mounting seat is provided with a first magnetic attraction part, the limiting piece is provided with a second magnetic attraction part which can be in magnetic attraction fit with the first magnetic attraction part so as to apply a magnetic attraction force for moving towards a limiting position to the limiting piece, and the limiting piece and the first mounting seat are provided with a driving inclined plane and a sliding part respectively; the sliding part is in sliding fit with the driving slope to drive the limiting piece to move towards the avoiding position, the driving slope is provided with a third magnetic attraction part, and the sliding part is provided with a fourth magnetic attraction part capable of being in magnetic attraction fit with the third magnetic attraction part to limit forward movement of the first mounting base relative to the second mounting base. Through the technical scheme provided by the invention, the problem that a leveling assembly in the related technology is not suitable for a display screen for pre-maintenance can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED display technical field, specifically, relate to a kind of leveling assembly and the LED display screen with it. BACKGROUND

[0002] The LED display screen includes a display frame and a plurality of display boxes. The plurality of display boxes are arranged on the front face of the display frame in an array. The display boxes and the display frame are connected by magnetic attraction.

[0003] In the related art, to improve the flatness between two adjacent display boxes, a leveling assembly is arranged between the two adjacent display boxes. The leveling assembly includes a connecting piece and two leveling seats. The two leveling seats are arranged on the back faces of the two adjacent display boxes, respectively. The connecting piece connects the two leveling seats to adjust the flatness between the two adjacent display boxes.

[0004] However, the leveling assembly in the related art can only be operated on the back face of the display box, so that the leveling assembly in the related art is only applicable to the LED display screen for rear maintenance, and is not applicable to the LED display screen for front maintenance. SUMMARY

[0005] The utility model provides a kind of leveling assembly and the LED display screen with it, to solve the problem that leveling assembly in the related art is not applicable to the display screen for front maintenance.

[0006] According to one aspect of the utility model, a leveling assembly is provided. The leveling assembly includes: a first mounting seat arranged on a first display box; a second mounting seat arranged on a second display box; a limiting piece movably arranged on the second mounting seat. The limiting piece has a limiting position and a avoiding position. When the limiting piece is in the limiting position, the limiting piece limits the backward movement of the first mounting seat relative to the second mounting seat. During the switching process of the limiting piece from the limiting position to the avoiding position, the limiting piece moves away from the first mounting seat. The first mounting seat has a first magnetic attraction part, and the limiting piece has a second magnetic attraction part. The first magnetic attraction part can magnetically attract the second magnetic attraction part to apply a magnetic attraction force to the limiting piece to move it to the limiting position. One of the limiting piece and the first mounting seat is provided with a driving slope, and the other of the limiting piece and the first mounting seat is provided with a sliding part. When the second mounting seat moves forward relative to the first mounting seat, the sliding part and the driving slope slide together to drive the limiting piece to move to the avoiding position. The driving slope has a third magnetic attraction part, and the sliding part has a fourth magnetic attraction part. The third magnetic attraction part and the fourth magnetic attraction part magnetically attract each other to limit the forward movement of the first mounting seat relative to the second mounting seat.

[0007] Further, the limiting piece comprises a limiting plate movably arranged on the second mounting seat, and the second magnetic attraction part is arranged on the limiting plate; and a limiting protrusion is arranged on a side of the limiting plate facing the first mounting seat, and the driving slope or the sliding part is arranged on a front side wall of the limiting protrusion.

[0008] Further, the second mounting seat is provided with a guide hole extending along a direction in which the second mounting seat points to the first mounting seat, and the limiting piece further comprises a guide column arranged on a side of the limiting plate away from the first mounting seat, and the guide column movably penetrates the guide hole along the extension direction of the guide hole.

[0009] Further, the limiting plate comprises a limiting main plate movably arranged on the second mounting seat, and when the limiting piece is in the limiting position, the limiting main plate abuts against a side wall of the first mounting seat facing the second mounting seat, and the second magnetic attraction part is arranged on the limiting main plate; and a guide rib plate is arranged on a rear side of the limiting main plate, and the rear side of the second mounting seat is provided with a guide groove extending along a direction in which the second mounting seat points to the first mounting seat, and the guide rib plate movably extends into the guide groove along the extension direction of the guide groove, and the limiting protrusion is arranged on a side of the guide rib plate facing the first mounting seat.

[0010] Further, the sliding part comprises a sliding slope arranged on the rear side of the first mounting seat, and the third magnetic attraction part comprises a magnetic attraction sheet arranged on the sliding slope, and the sliding slope is matched with the driving slope, and the driving slope is arranged on the front side wall of the limiting protrusion.

[0011] Further, the leveling assembly further comprises a reset piece arranged between the second mounting seat and the limiting piece to apply a reset force moving the limiting piece to the avoiding position.

[0012] Further, the leveling assembly further comprises a clamping spring arranged at an end of the limiting piece away from the first mounting seat, and the two ends of the reset piece are connected with the second mounting seat and the clamping spring respectively; and / or the reset piece comprises a spring.

[0013] Further, the limiting piece is made of a magnetic attraction material, and the first magnetic attraction part comprises a magnet; and the leveling assembly further comprises a first fastener and a second fastener, the first fastener penetrates the first mounting seat, and the first fastener is connected with the first mounting seat and the first display box body respectively, and the second fastener penetrates the second mounting seat, and the second fastener is connected with the second mounting seat and the second display box body respectively.

[0014] According to another aspect of the present application, an LED display screen is provided, which comprises: a display frame; a plurality of display box bodies arranged in an array on a front face of the display frame; and a leveling assembly arranged between two adjacent display box bodies, wherein the leveling assembly is the leveling assembly provided above.

[0015] Further, the display box comprises a first display module, a second display module and a connecting sheet, one end of the connecting sheet is connected with the back of the first display module, and the other end of the connecting sheet is connected with the back of the second display module.

[0016] The technical scheme of the utility model, leveling assembly includes first mounting seat, second mounting seat and limit piece, first mounting seat sets up on first display box, second mounting seat sets up on second display box, when carrying on the front maintenance to second display box, second display box is removed to the front side with the forward movement of second mounting seat relative to first mounting seat, sliding part and drive slope slide fit, to drive limit piece to avoid position movement, limit piece is away from first mounting seat to avoid first mounting seat, thereby making second display box can be smoothly taken off from the front side, to carry on the front maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the utility model and are incorporated herein by reference. The utility model is illustrated by the embodiments and their descriptions, and does not constitute improper limitation to the utility model. In the drawings:

[0018] Figure 1 The structure schematic diagram of leveling assembly provided by the utility model embodiment is shown;

[0019] Figure 2 The structure schematic diagram of second mounting seat, limit piece and clasp spring of leveling assembly provided by the utility model embodiment is shown;

[0020] Figure 3 The explosion view of second mounting seat, limit piece, reset piece and clasp spring of leveling assembly provided by the utility model embodiment is shown;

[0021] Figure 4A structure schematic view of the first mounting seat of the leveling assembly is shown;

[0022] Figure 5 A structure schematic view of another view angle of the leveling assembly is shown;

[0023] Figure 6 A structure schematic view of the LED display screen is shown Figure 5 A sectional view at A-A is shown;

[0024] Figure 7 A structure schematic view of the LED display screen is shown Figure 5 A sectional view at B-B is shown;

[0025] Figure 8 A structure schematic view of the LED display screen is shown;

[0026] Figure 9 A sectional view of the LED display screen is shown;

[0027] Figure 10 A structure schematic view of the LED display screen is shown Figure 9 A local enlarged view at A is shown;

[0028] Figure 11 A structure schematic view of the display box of the LED display screen is shown.

[0029] Among them, the above-mentioned drawings include the following figure marks:

[0030] 10, first mounting seat; 11, first magnetic attraction part; 12, sliding part; 121, third magnetic attraction part;

[0031] 20, second mounting seat; 21, driving slope; 22, guide hole; 23, guide groove;

[0032] 30, limiting piece; 31, limiting plate; 311, limiting main plate; 312, guide rib plate; 32, limiting protrusion; 33, guide column;

[0033] 40, reset piece; 50, clasp spring; 60, first fastener; 70, second fastener;

[0034] 80, display frame; 90, display box; 91, first display module; 92, second display module; 93, connecting sheet. DETAILED DESCRIPTION

[0035] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is merely illustrative, and is by no means intended to limit the present application and its application or use in any way. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0036] As shown in Figures 1 to 7 The utility model embodiment provides a leveling assembly, leveling assembly includes first mounting seat 10, second mounting seat 20 and stop piece 30, first mounting seat 10 sets up on the first display box body, second mounting seat 20 sets up on the second display box body, stop piece 30 movably sets up on second mounting seat 20, stop piece 30 has limit position and avoidance position, when stop piece 30 is in limit position, stop piece 30 limits the rearward movement of first mounting seat 10 relative to second mounting seat 20, in the process that stop piece 30 switches from limit position to avoidance position, stop piece 30 is away from first mounting seat 10, wherein, first mounting seat 10 has first magnetic attraction part 11, stop piece 30 has second magnetic attraction part, first magnetic attraction part 11 can with second magnetic attraction part magnetic attraction cooperation, to the magnetic attraction force that moves to limit position is applied to stop piece 30, one of stop piece 30 and first mounting seat 10 is provided with drive slope 21, and the other of stop piece 30 and first mounting seat 10 is provided with sliding part 12, when second mounting seat 20 moves forward relative to first mounting seat 10, sliding part 12 and drive slope 21 slide fit, to drive stop piece 30 to move to avoidance position, drive slope 21 has third magnetic attraction part 121, and sliding part 12 has fourth magnetic attraction part, third magnetic attraction part 121 and fourth magnetic attraction part magnetic attraction cooperation, to limit the forward movement of first mounting seat 10 relative to second mounting seat 20.

[0037] The leveling assembly provided by the embodiment includes a first mounting seat 10, a second mounting seat 20, and a limiting piece 30. The first mounting seat 10 is arranged on the first display box body, and the second mounting seat 20 is arranged on the second display box body. When the second display box body is moved forward for front maintenance, the second mounting seat 20 is moved forward relative to the first mounting seat 10, the sliding part 12 and the driving slope 21 are in sliding cooperation to drive the limiting piece 30 to move to a avoiding position, and the limiting piece 30 is away from the first mounting seat 10 to avoid the first mounting seat 10, so that the second display box body can be smoothly taken off from the front side for front maintenance. After the front maintenance is completed, the limiting piece 30 is still at the avoiding position to avoid the first mounting seat 10, the second display box body is moved backward to drive the second mounting seat 20 to move backward relative to the first mounting seat 10, the second mounting seat 20 gradually approaches the first mounting seat 10, the first magnetic attraction part 11 and the second magnetic attraction part are in magnetic attraction cooperation to apply a magnetic attraction force to the limiting piece 30 to move to a limiting position, the limiting piece 30 limits the backward movement of the first mounting seat 10 relative to the second mounting seat 20, and at this time, the third magnetic attraction part 121 and the fourth magnetic attraction part are in magnetic attraction cooperation, the driving slope 21 and the sliding part 12 abut each other to limit the forward movement of the first mounting seat 10 relative to the second mounting seat 20, so that the first mounting seat 10 and the second mounting seat 20 are flush in the front-back direction, and the first display box body and the second display box body are flush in the front-back direction. Therefore, the leveling assembly provided by the embodiment not only can make the installation between the two adjacent display box bodies flat, but also is suitable for the front maintenance of the display screen.

[0038] When the first display box body is moved forward for front maintenance, the third magnetic attraction part 121 and the fourth magnetic attraction part are separated, and then the first magnetic attraction part 11 and the second magnetic attraction part are separated, so that the first display box body can be smoothly taken off from the front side for front maintenance.

[0039] It should be noted that the sliding part 12 includes but is not limited to the embodiment of the fixed pulley, the sliding slope, or the sliding protrusion in sliding cooperation with the driving slope 21.

[0040] As Figure 1As shown, the limiting piece 30 includes a limiting plate 31 and a limiting protrusion 32, the limiting plate 31 is movably arranged on the second mounting seat 20, the second magnetic attraction part is arranged on the limiting plate 31, the limiting protrusion 32 is arranged on the side of the limiting plate 31 facing the first mounting seat 10, and the driving slope 21 or the sliding part 12 is arranged on the front side wall of the limiting protrusion 32. When the second display box body is installed in place, the limiting piece 30 moves to the limiting position, the limiting protrusion 32 abuts against the first mounting seat 10 in the front-back direction to limit the backward movement of the first mounting seat 10 relative to the second mounting seat 20, and at this time, the third magnetic attraction part 121 and the fourth magnetic attraction part are magnetically attracted and matched, so that the driving slope 21 and the sliding part 12 abut against each other to limit the forward movement of the first mounting seat 10 relative to the second mounting seat 20, so that the first mounting seat 10 and the second mounting seat 20 are flush in the front-back direction, and the first display box body and the second display box body are flush in the front-back direction.

[0041] As shown, Figure 3 The second mounting seat 20 is provided with a guide hole 22 extending in the direction of the second mounting seat 20 pointing to the first mounting seat 10, and the limiting piece 30 further includes a guide column 33 arranged on the side of the limiting plate 31 away from the first mounting seat 10, and the guide column 33 movably penetrates the guide hole 22 in the extension direction of the guide hole 22. During the movement of the limiting piece 30 relative to the second mounting seat 20, the guide hole 22 can guide the guide column 33 to guide the limiting piece 30 to reciprocate in the direction of the second mounting seat 20 pointing to the first mounting seat 10.

[0042] As shown, Figure 1 and Figure 6As shown, the limiting plate 31 comprises a limiting main plate 311 and a guide rib plate 312, the limiting main plate 311 is movably arranged on the second mounting seat 20, when the limiting piece 30 is in the limiting position, the limiting main plate 311 abuts against the side wall of the first mounting seat 10 facing the second mounting seat 20, the second magnetic attraction part is arranged on the limiting main plate 311, the guide rib plate 312 is arranged on the rear side of the limiting main plate 311, the rear side of the second mounting seat 20 is provided with a guide groove 23, the guide groove 23 extends along the direction of the second mounting seat 20 pointing to the first mounting seat 10, the guide rib plate 312 movably extends into the guide groove 23 along the extension direction of the guide groove 23, and the limiting protrusion 32 is arranged on the side of the guide rib plate 312 facing the first mounting seat 10. During the movement of the limiting piece 30 relative to the second mounting seat 20, the guide rib plate 312 is guided by the guide groove 23, which can guide the limiting piece 30 to reciprocate along the direction of the second mounting seat 20 pointing to the first mounting seat 10. When the first display box is maintained, the guide rib plate 312 is pushed from the rear side of the second display box through the guide groove 23, so that the limiting piece 30 moves to the avoiding position, and the limiting piece 30 moves away from the first mounting seat 10 to avoid the first mounting seat 10, so that the first display box can be smoothly taken out from the rear side for maintenance.

[0043] As shown in Figure 1 and Figure 4 , the sliding part 12 comprises a sliding slope, the sliding slope is arranged on the rear side of the first mounting seat 10, the third magnetic attraction part 121 comprises a magnetic attraction piece, the magnetic attraction piece is arranged on the sliding slope, and the sliding slope is matched with the driving slope 21, and the driving slope 21 is arranged on the front side wall of the limiting protrusion 32. The sliding slope is used for improving the reliability of the sliding slope sliding cooperation between the sliding part 12 and the driving slope 21, and facilitating the processing and forming.

[0044] As shown in Figure 1 and Figure 3 , the leveling assembly further comprises a reset piece 40, the reset piece 40 is arranged between the second mounting seat 20 and the limiting piece 30, and the reset piece 40 is arranged between the second mounting seat 20 and the limiting piece 30. The reset force of the limiting piece 30 to the avoiding position is applied to the limiting piece 30, when the first magnetic attraction part 11 and the second magnetic attraction part are separated, the reset action of the reset piece 40 can be used to maintain the limiting piece 30 in the avoiding position to avoid the front and rear movement of the first mounting seat 10, and the front and rear maintenance of the display screen is facilitated.

[0045] As shown in Figures 1 to 3As shown, the leveling assembly further comprises a circlip 50 arranged at the end of the limiting member 30 away from the first mounting base 10, and the two ends of the reset member 40 are connected with the second mounting base 20 and the circlip 50 respectively. The reset member 40 is conveniently and quickly installed, specifically, the reset member 40 is sleeved on the guide column 33, the end of the reset member 40 facing the first mounting base 10 abuts against the second mounting base 20, and the circlip 50 is arranged at the end of the guide column 33 away from the first mounting base 10, so that the end of the reset member 40 away from the first mounting base 10 abuts against the circlip 50.

[0046] In the embodiment, the reset member 40 comprises a spring, so that the reset member 40 has the advantages of simple structure, low cost and convenient installation.

[0047] In the embodiment, the limiting member 30 is made of magnetic material, and the first magnetic attraction part 11 comprises a magnet. By making the limiting member 30 of magnetic material, the second magnetic attraction part and the fourth magnetic attraction part are formed on the limiting member 30.

[0048] Specifically, the limiting main plate 311 constitutes the second magnetic attraction part, and the limiting protrusion 32 constitutes the fourth magnetic attraction part.

[0049] As shown, Figure 10 The leveling assembly further comprises a first fastener 60 and a second fastener 70, the first fastener 60 is threaded through the first mounting base 10, the first fastener 60 is connected with the first mounting base 10 and the first display box respectively, the second fastener 70 is threaded through the second mounting base 20, the second fastener 70 is connected with the second mounting base 20 and the second display box respectively, the first fastener 60 enables the first mounting base 10 to be stably installed at the back of the first display unit, the second fastener 70 enables the second mounting base 20 to be stably installed at the back of the second display unit, and the leveling assembly has the advantages of low cost and convenient installation.

[0050] The leveling assembly provided by the embodiment has the following beneficial effects:

[0051] (1) The first magnetic attraction part 11 and the second magnetic attraction part are magnetically attracted and matched, and the third magnetic attraction part 121 and the fourth magnetic attraction part are magnetically attracted and matched, so as to ensure the limiting force and the flatness precision and improve the flatness between the two adjacent display boxes;

[0052] (2) The leveling assembly is suitable for front and rear maintenance, and does not affect the disassembly and assembly of the display box;

[0053] (3) The leveling assembly has a simple structure and is convenient for machining and molding.

[0054] As shown, Figures 8 to 11As shown, the utility model embodiment provides a kind of LED display screen, and LED display screen includes display frame 80, leveling assembly and multiple display box 90, multiple display box 90 is arrayed arrangement and is arranged at the front of display frame 80, leveling assembly is arranged between the two adjacent display box 90, and leveling assembly is provided above described leveling assembly.Application the LED display screen provided in this embodiment, first mounting seat 10 is arranged on the first display box in the two adjacent display box 90, and second mounting seat 20 is arranged on the second display box in the two adjacent display box 90, when carrying out front maintenance to the second display box, the second display box is moved forward, to drive second mounting seat 20 relative to first mounting seat 10 and move forward, sliding portion 12 and drive slope 21 sliding fit, to drive limiting piece 30 and move to avoid position, limiting piece 30 is away from first mounting seat 10 to avoid first mounting seat 10, so that the first display box can be smoothly taken off from front side, to carry out front maintenance.After front maintenance, limiting piece 30 is still in avoid position to avoid first mounting seat 10, and the second display box is moved back, to drive second mounting seat 20 relative to first mounting seat 10 and move back, second mounting seat 20 gradually approaches first mounting seat 10, first magnetic attraction part 11 and second magnetic attraction part magnetic attraction fit, to the magnetic attraction force of limiting piece 30 that moves to limiting position is applied, when the second display box is installed in place, limiting piece 30 moves to limiting position, limiting piece 30 limits the back movement of first mounting seat 10 relative to second mounting seat 20, and third magnetic attraction part 121 and fourth magnetic attraction part are attracted to fit at this time, so that drive slope 21 and sliding portion 12 are abutted, to limit the forward movement of first mounting seat 10 relative to second mounting seat 20, so that first mounting seat 10 and second mounting seat 20 are flush in front and back direction, and make the first display box and the second display box flush in front and back direction.Therefore, the leveling assembly provided in this embodiment not only can make the installation flat between the two adjacent display box, but also be applicable to the display screen of front maintenance.

[0055] As Figure 11 Shown, display box 90 includes first display module 91, second display module 92 and connecting sheet 93, and one end of connecting sheet 93 is connected with the back of first display module 91, and the other end of connecting sheet 93 is connected with the back of second display module 92.First display module 91 and second display module 92 are arranged side by side in horizontal direction, and display box 90 includes two connecting sheets 93, and the two connecting sheets 93 are arranged in vertical direction, wherein the horizontal direction and the vertical direction are parallel to the plane where the display box is located, and the two connecting sheets 93 can improve the flatness of the splicing place of first display module 91 and second display module 92.

[0056] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0058] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0059] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "upper", "lower", and the like, can be used to describe the relative position of one element or feature to another as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. Well, the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0060] In addition, it needs to be explained that the use of "first", "second" and the like words to limit the parts, only for the convenience of the corresponding parts for the distinction, such as no other declaration, the above words have no special meaning, therefore can not be understood as the restriction of the scope of protection of the utility model.

[0061] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A leveling component, characterized in that, The leveling component includes: The first mounting base (10) is disposed on the first display cabinet; The second mounting base (20) is disposed on the second display cabinet; A limiting member (30) is movably disposed on the second mounting base (20). The limiting member (30) has a limiting position and a clearance position. When the limiting member (30) is in the limiting position, the limiting member (30) restricts the first mounting base (10) from moving backward relative to the second mounting base (20). During the process of the limiting member (30) switching from the limiting position to the clearance position, the limiting member (30) moves away from the first mounting base (10). The first mounting base (10) has a first magnetic attraction part (11), and the limiting member (30) has a second magnetic attraction part. The first magnetic attraction part (11) can magnetically engage with the second magnetic attraction part to apply a magnetic attraction force to the limiting member (30) to move it to the limiting position. One of the limiting member (30) and the first mounting base (10) is provided with a driving inclined surface (21), and the other of the limiting member (30) and the first mounting base (10) is provided with a sliding part (12). When the second mounting base (20) moves forward relative to the first mounting base (10), the sliding part (12) and the driving inclined surface (21) slide together to drive the limiting member (30) to move toward the avoidance position. The driving inclined surface (21) has a third magnetic attraction part (121), and the sliding part (12) has a fourth magnetic attraction part. The third magnetic attraction part (121) and the fourth magnetic attraction part magnetically engage to restrict the forward movement of the first mounting base (10) relative to the second mounting base (20).

2. The leveling component according to claim 1, characterized in that, The limiting member (30) includes: A limiting plate (31) is movably disposed on the second mounting base (20), and the second magnetic suction part is disposed on the limiting plate (31); A limiting protrusion (32) is provided on the side of the limiting plate (31) facing the first mounting base (10), and the driving inclined surface (21) or the sliding part (12) is provided on the front side wall of the limiting protrusion (32).

3. The leveling component according to claim 2, characterized in that, The second mounting base (20) is provided with a guide hole (22), which extends along the direction of the second mounting base (20) toward the first mounting base (10). The limiting member (30) also includes a guide post (33), which is disposed on the side of the limiting plate (31) away from the first mounting base (10). The guide post (33) is movably inserted through the guide hole (22) along the extension direction of the guide hole (22).

4. The leveling component according to claim 2, characterized in that, The limiting plate (31) includes: The limiting main board (311) is movably disposed on the second mounting base (20). When the limiting member (30) is in the limiting position, the limiting main board (311) abuts against the side wall of the first mounting base (10) facing the second mounting base (20). The second magnetic part is disposed on the limiting main board (311). A guide rib (312) is disposed on the rear side of the limiting main plate (311). A guide groove (23) is disposed on the rear side of the second mounting base (20). The guide groove (23) extends along the direction from the second mounting base (20) toward the first mounting base (10). The guide rib (312) extends movably into the guide groove (23) along the extension direction of the guide groove (23). The limiting protrusion (32) is disposed on the side of the guide rib (312) facing the first mounting base (10).

5. The leveling component according to claim 2, characterized in that, The sliding part (12) includes a sliding inclined surface, which is disposed on the rear side of the first mounting base (10). The third magnetic suction part (121) includes a magnetic suction piece, which is disposed on the sliding inclined surface. The sliding inclined surface is adapted to the driving inclined surface (21), which is disposed on the front side wall of the limiting protrusion (32).

6. The leveling component according to claim 1, characterized in that, The leveling assembly further includes a reset member (40) disposed between the second mounting base (20) and the limiting member (30) to apply a reset force to the limiting member (30) to move toward the avoidance position.

7. The leveling component according to claim 6, characterized in that, The leveling assembly further includes a retaining ring (50), which is disposed at one end of the limiting member (30) opposite to the first mounting base (10). Both ends of the resetting member (40) are respectively connected to the second mounting base (20) and the retaining ring (50); and / or, The reset element (40) includes a spring.

8. The leveling component according to claim 1, characterized in that, The limiting member (30) is made of magnetic material, and the first magnetic part (11) includes a magnet; The leveling assembly further includes a first fastener (60) and a second fastener (70). The first fastener (60) passes through the first mounting base (10) and is connected to the first mounting base (10) and the first display cabinet respectively. The second fastener (70) passes through the second mounting base (20) and is connected to the second mounting base (20) and the second display cabinet respectively.

9. An LED display screen, characterized in that, The LED display screen includes: Display frame (80); Multiple display cabinets (90) are arranged in an array on the front of the display frame (80); A leveling assembly is disposed between two adjacent display housings (90), the leveling assembly being the leveling assembly according to any one of claims 1 to 8.

10. The LED display screen according to claim 9, characterized in that, The display housing (90) includes a first display module (91), a second display module (92), and a connecting piece (93). One end of the connecting piece (93) is connected to the back of the first display module (91), and the other end of the connecting piece (93) is connected to the back of the second display module (92).

Images