Corner protection mechanism and spliced screen

Abstract

The utility model relates to a corner protection mechanism and a spliced screen. The corner protection mechanism comprises a corner protection assembly and a matching part, the corner protection assembly and the matching part are used for being installed on the opposite sides of any two adjacent box bodies correspondingly, the corner protection assembly comprises a protection plate, the protection plate is slidably connected with the corresponding box body in the first direction, and the protection plate extends to one side of a display module on the box body through the corresponding box body. The protection plate is provided with an inclined surface; the matching piece is used for abutting against the inclined face and is configured to push the protection plate to be away from the display module in the first direction when any two adjacent box bodies get close to each other; wherein the first direction and the plane where the display module is located form an included angle. When the two adjacent box bodies get close to each other, the matching piece can apply acting force to the protection plate, so that the protection plate can be far away from the display module in the first direction, namely, automatic contraction of the protection plate can be achieved without additional manual operation, time and labor are saved, and the splicing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to a corner protection mechanism and a spliced ​​screen. Background Art

[0002] The finished cabinet of the existing display screen includes a cabinet and a display module installed on the cabinet. The cabinet is generally equipped with a corner protection mechanism to protect the corners of the cabinet and the display module, so that when the finished cabinet is disassembled and placed vertically or against an object, the sides and corners of the cabinet and the sides and corners of the display module will contact the ground, and the corner protection mechanism can protect the sides and corners of the cabinet and the sides and corners of the display module installed on the cabinet. However, when the finished cabinet of the existing display screen is spliced, in order to avoid interfering with the splicing of adjacent display modules, the corner protection mechanism needs to be manually retracted, which makes the splicing time-consuming and labor-intensive, and inefficient. Utility Model Content

[0003] Based on this, it is necessary to provide a corner protection mechanism to address the technical problem that when splicing finished display cabinets of existing display screens, in order to avoid interference with the splicing of adjacent display modules, the corner protection mechanism needs to be manually retracted, which makes the splicing time-consuming, labor-intensive and inefficient.

[0004] A corner protection mechanism is used to be assembled on a box of a display screen, and a display module is assembled on the box; the corner protection mechanism includes a corner protection assembly and a matching piece, and the corner protection assembly and the matching piece are respectively used to be installed on the opposite side of any two adjacent boxes, and the corner protection assembly includes a protection plate, and the protection plate is slidably connected to the corresponding box along a first direction, and the protection plate extends to a side of the display module on the box through the corresponding box, and the protection plate has an inclined surface; the matching piece is used to abut against the inclined surface, and the matching piece is configured to push the protection plate away from the display module along the first direction when any two adjacent boxes approach each other; wherein the first direction forms an angle with the plane where the display module is located.

[0005] In one embodiment, the first direction is parallel to the thickness direction of the display module.

[0006] In one embodiment, the corner guard assembly further includes an elastic member, one end of which is connected to the corresponding box body, and the other end of which is connected to the protective plate, and the elastic member is used to apply a force to the protective plate toward the display module.

[0007] In one of the embodiments, the protection plate is further provided with a limiting surface connected to the inclined surface, the plane where the limiting surface is located is perpendicular to the first direction, and the limiting surface is used to fit with a side of the matching component away from the display module.

[0008] In one embodiment, the protective plate includes a plate body and a protrusion, the plate body is used to extend to a side of the corresponding display module, the protrusion is connected to a side of the plate body facing away from the mating piece, and the side wall of the protrusion facing the display module is configured to form at least a portion of the inclined surface.

[0009] In one of the embodiments, a matching hole for the matching piece to pass through is provided on the protection plate, and the inclined surface is provided on a hole wall of the matching hole and is located on a side away from the display module.

[0010] In one of the embodiments, a guide hole is provided on the protection plate, and the corner protection assembly further includes a guide column, which passes through the guide hole and is slidably connected to the hole wall of the guide hole along the first direction and is connected to the corresponding box.

[0011] In one of the embodiments, a step wall is provided on the guide hole, and a protrusion is provided on the guide column, and the protrusion is used to abut against the step wall to limit the protection plate from slipping out relative to the guide column.

[0012] In one embodiment, the mating part includes a mating plate and a mating column, the mating plate is used to be connected to the corresponding box body, the mating plate is provided with a groove, the groove is used to accommodate the part of the corner guard assembly protruding from the corresponding box body, the mating column is connected to the mating plate and is used to abut against the inclined surface.

[0013] The utility model also provides a spliced ​​screen, which can solve at least one of the above technical problems.

[0014] A spliced ​​screen includes the above-mentioned corner protection mechanism and at least two finished boxes, wherein the finished box includes a box and a display module installed on the box, and the corner protection assembly and the matching piece are respectively used to be installed on the opposite side of any two adjacent boxes of the at least two finished boxes.

[0015] Beneficial effects:

[0016] An angle protection mechanism provided by an embodiment of the present utility model is used to be assembled on a box body of a display screen, and a display module is assembled on the box body; the angle protection mechanism includes an angle protection component and a fitting, the angle protection component and the fitting are respectively used to be installed on opposite sides of any two adjacent box bodies, the angle protection component includes a protection plate, the protection plate is slidably connected to the corresponding box body along a first direction, the protection plate extends through the corresponding box body to one side of the display module on the box body, and the protection plate has an inclined surface; the fitting is used to abut against the inclined surface, and the fitting is configured to push the protection plate to move away from the display module along the first direction when any two adjacent box bodies approach each other; wherein the first direction forms an angle with the plane where the display module is located. In the present application, when two adjacent box bodies approach each other, since the fitting abuts against the inclined surface, the fitting will apply a thrust to the protection plate. Since the protection plate is slidably connected to the corresponding box body along the first direction, the protection plate can move away from the display module along the first direction, so that the side wall of the corresponding display module is exposed, facilitating fitting with the display module installed on the adjacent box body to achieve splicing. That is, when splicing the display modules in the present application, the protection plate can be automatically retracted without additional manual operation, thereby saving time and effort and improving the splicing efficiency.

[0017] The present utility model also provides a splicing screen, including the above-mentioned angle protection mechanism, and further including at least two finished box bodies. The finished box body includes a box body and a display module installed on the box body. The angle protection component and the fitting are respectively used to be installed on opposite sides of any two adjacent box bodies among the at least two finished box bodies. This splicing screen can achieve at least one of the above technical effects. Description of the Drawings

[0018] Figure 1 It is the first schematic diagram of the splicing screen provided by an embodiment of the present utility model.

[0019] Figure 2 It is the second schematic diagram of the splicing screen provided by an embodiment of the present utility model.

[0020] Figure 3 It is Figure 2 The enlarged view of part A in

[0021] Figure 4 It is the sectional view of the cooperation between the angle protection mechanism and the finished box body provided by an embodiment of the present utility model.

[0022] Reference Numerals in the Drawings:

[0023] 100 - Corner protection component; 110 - Protection plate; 111 - Inclined surface; 112 - Fitting hole; 113 - Limiting surface; 114 - Plate body; 115 - Protrusion; 116 - Avoidance hole; 117 - Guide hole; 118 - Step wall; 119 - First mounting hole; 120 - Elastic member; 130 - Guide post; 131 - Protruding portion; 200 - Fitting member; 210 - Fitting plate; 220 - Fitting post; 221 - Inclined surface; 230 - Groove; 300 - Box body; 310 - Second mounting hole; 400 - Display module. Detailed implementation manner

[0024] In order to make the above - mentioned objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manner of the present utility model will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0030] See Figures 1 - 4 , Figure 1 is the first schematic diagram of the splicing screen provided by an embodiment of the present utility model. Figure 2 is the second schematic diagram of the splicing screen provided by an embodiment of the present utility model. Figure 3 is Figure 2 the enlarged view of part A in Figure 4A sectional view of the corner protection mechanism provided by an embodiment of the present utility model in cooperation with a finished product box. An embodiment of the present utility model provides a corner protection mechanism for assembling on the box body 300 of a display screen. A display module 400 is assembled on the box body 300. The corner protection mechanism includes a corner protection component 100 and a fitting 200. The corner protection component 100 and the fitting 200 are respectively used for installing on opposite sides of any two adjacent box bodies 300. The corner protection component 100 includes a protection plate 110. The protection plate 110 is slidably connected to the corresponding box body 300 in a first direction. The protection plate 110 extends through the corresponding box body 300 to one side of the display module 400 on the box body 300, and the protection plate 110 has an inclined surface 111. The fitting 200 is used for abutting against the inclined surface 111. The fitting 200 is configured to push the protection plate 110 to move away from the display module 400 in the first direction when any two adjacent box bodies 300 approach each other. The first direction forms an angle with the plane where the display module 400 is located.

[0031] Specifically, in the present application, when any two adjacent box bodies 300 approach each other, since the fitting 200 abuts against the inclined surface 111, the fitting 200 will apply a thrust force to the protection plate 110. Since the protection plate 110 is slidably connected to the corresponding box body 300 in the first direction, the protection plate 110 can move away from the display module 400 in the first direction, so that the side wall of the corresponding display module 400 is exposed, facilitating the fitting with the display module 400 installed on the adjacent box body 300 to achieve splicing. That is, when splicing the display modules 400 in the present application, it is not necessary to manually retract the corner protection mechanism additionally, and the automatic contraction of the protection plate 110 can be realized, thus achieving the effect of saving time and effort and improving the splicing efficiency.

[0032] Furthermore, the corner protection component 100 is arranged at the end of the box body 300. Among them, two groups of corner protection components 100 are provided on opposite sides of two adjacent box bodies 300.

[0033] It should be noted that the display screen includes a plurality of finished product box bodies. Each finished product box body includes a box body 300 and a display module 400 installed on the box body 300. The display module 400 has a display surface and a side wall adjacent to the display surface. When two finished product box bodies are spliced, the side walls on the opposite sides of the two display modules 400 abut against each other. Among them, the protection plate 110 extends through the corresponding box body 300 to the side wall of the display module 400 installed on the corresponding box body 300, so as to protect the lamp beads at the edge of the display module 400.

[0034] Refer to Figure 4, in one embodiment, the first direction is perpendicular to the plane where the display module 400 is located. Thus, when the protection plate 110 moves away from the display module 400 along the first direction, it will not interfere with the side wall of the display module 400, enabling the movement of the protection plate 110 to be unrestricted, making it move more smoothly and improving the reliability of the corner protection mechanism.

[0035] Further, the side of the protection plate 110 facing away from the mating member 200 is attached to the side wall of the display module 400, thereby better protecting the display module 400.

[0036] It should be noted that, taking the attached Figure 3 as an example, the first direction is parallel to the thickness direction of the display module 400. Define XX’ as the first direction, the second direction is the arrangement direction of two adjacent boxes 300, define YY’ as the second direction, and the third direction is perpendicular to both the first direction and the second direction, define ZZ’ as the third direction. The following descriptions will all be based on the first direction, the second direction, and the third direction.

[0037] Refer to Figure 3 and Figure 4 , in one embodiment, the corner protection assembly 100 further includes an elastic member 120. One end of the elastic member 120 is connected to the corresponding box 300, and the other end of the elastic member 120 is connected to the protection plate 110. The elastic member 120 is used to apply a force to the protection plate 110 towards the display module 400.

[0038] Specifically, when the mating member 200 separates from the inclined surface 111, under the action of the elastic member 120, the protection plate 110 will move towards the display module 400 along the first direction, so that the protection plate 110 automatically extends out relative to the side wall of the display module 400 to protect the display module 400. That is, without additional manual operation, the automatic extension of the protection plate 110 can be realized to protect the display module 400, improving the reliability of the corner protection mechanism. Preferably, the elastic member 120 is a spring.

[0039] Further, the elastic member 120 is arranged on the side of the protection plate 110 away from the display module 400, so that when the mating member 200 pushes the inclined surface 111 to make the protection plate 110 move away from the display module 400, the interference with the mating member 200 can be reduced, improving the reliability of the corner protection mechanism.

[0040] Refer to Figure 3 and Figure 4 , in one embodiment, the protection plate 110 is further provided with a limiting surface 113 that is continuous with the inclined surface 111. The plane where the limiting surface 113 is located is perpendicular to the first direction, and the limiting surface 113 is used to be attached to the side of the mating member 200 facing away from the display module 400.

[0041] Specifically, the limiting surface 113 is disposed on the side of the inclined surface 111 away from the fitting 200. When the protection plate 110 contracts outside the side wall of the display module 400, the fitting 200 abuts against the limiting surface 113. Since the plane where the limiting surface 113 is located is perpendicular to the first direction, and the limiting surface 113 fits against the side of the fitting 200 facing away from the display module 400, the fitting 200 can exert a stable limiting force along the first direction on the limiting surface 113 to limit the protection plate 110 from approaching the display module 400 along the first direction, so that the protection plate 110 stably contracts outside the side wall of the display module 400, improving the reliability of the corner protection mechanism.

[0042] Refer to Figure 3 and Figure 4 , in one embodiment, the protection plate 110 includes a plate body 114 and a convex block 115. The plate body 114 is used to extend to one side of the corresponding display module 400. The convex block 115 is connected to the side of the plate body 114 facing away from the fitting 200. The side wall of the convex block 115 facing the display module 400 is configured as at least a part of the inclined surface 111.

[0043] Specifically, an avoidance hole 116 is provided on the box body 300 for avoiding the convex block 115. At least a part of the inclined surface 111 is disposed on the convex block 115, so that the size of the inclined surface 111 in the second direction is not limited, and thus the inclination angle of the inclined surface 111 can be reasonably set, so that when two adjacent box bodies 300 approach, the fitting 200 can conveniently push the protection plate 110 away from the display module 400, improving the reliability of the corner protection mechanism.

[0044] Further, a part of the inclined surface 111 is disposed on the side wall of the convex block 115 facing the display module 400, and another part of the inclined surface 111 is disposed on the side of the plate body 114 facing the display module 400, so as to further increase the size of the inclined surface 111 in the second direction, and thus the inclination angle of the inclined surface 111 can be further reasonably set.

[0045] Refer to Figure 3 and Figure 4 , in one embodiment, a first mounting hole 119 is provided on the convex block 115. The elastic member 120 is partially received in the first mounting hole 119. The first mounting hole 119 can guide the elastic member 120, so that when the elastic member is under pressure, it can accurately contract along the first direction, and when the pressure is released, it can accurately elongate along the first direction to apply a thrust force along the first direction to the protection plate 110.

[0046] Further, a second mounting hole 310 is provided on the hole wall of the avoidance hole 116 for receiving a part of the elastic member 120 to guide the elastic member 120.

[0047] Refer toFigure 3 and Figure 4 In one embodiment, the protection plate 110 is provided with a fitting hole 112 for the fitting member 200 to pass through. The inclined surface 111 is disposed on the hole wall of the fitting hole 112 and is located on the side away from the display module 400.

[0048] Specifically, the fitting member 200 passes through the fitting hole 112 and abuts against the inclined surface 111. When the fitting member 200 applies a thrust force to the inclined surface 111, the force application point of the fitting member 200 on the inclined surface 111 is located near the middle area position of the protection plate 110, thereby improving the stability of the thrust force applied by the fitting member 200 to the protection plate 110. Preferably, in the third direction, the fitting hole 112 is located at the middle position of the protection plate 110.

[0049] Refer to Figure 3 and Figure 4 In one embodiment, the protection plate 110 is provided with a guiding hole 117. The corner protection assembly 100 further includes a guiding post 130. The guiding post 130 passes through the guiding hole 117 and is slidably connected to the hole wall of the guiding hole 117 in the first direction and is connected to the corresponding box body 300.

[0050] Specifically, the guiding hole 117 is disposed on the plate body 114, and the guiding hole 117 extends in the first direction. The guiding post 130 is connected to the corresponding box body 300 and is slidably connected to the hole wall of the guiding hole 117 in the first direction, thereby being able to limit the movement of the protection plate 110 in the third direction and guiding the movement of the protection plate 110 in the first direction to improve the reliability of the corner protection mechanism.

[0051] Refer to Figure 3 and Figure 4 In one embodiment, the guiding hole 117 is provided with a stepped wall 118, and the guiding post 130 is provided with a protruding portion 131. The protruding portion 131 is used to abut against the stepped wall 118 to limit the protection plate 110 from disengaging from the guiding post 130.

[0052] Specifically, the side of the protruding portion 131 close to the guiding post 130 abuts against the stepped wall 118, thereby being able to limit the protection plate 110 from moving away from the guiding post 130 in the third direction and improving the reliability of the corner protection mechanism. Preferably, the protruding portion 131 is circumferentially disposed on the guiding post 130.

[0053] Further, one side of the plate body 114 facing away from the fitting 200 abuts against the corresponding box body 300, so as to be able to limit the protection plate 110 from moving away from the fitting 200 along the third direction. The movement of the protection plate 110 along the second direction is restricted, and the movement of the protection plate 110 away from the guiding column 130 along the third direction is restricted, so that the movement of the protection plate 110 along the second direction and the third direction are both restricted. Thus, when the protection plate 110 is pushed by the fitting 200, it can move stably along the first direction, further improving the reliability of the corner protection mechanism.

[0054] Refer to Figure 3 and Figure 4 , in one embodiment, the fitting 200 includes a fitting plate 210 and a fitting column 220. The fitting plate 210 is used to connect to the corresponding box body 300. A groove 230 is provided on the fitting plate 210, and the groove 230 is used to accommodate a part of the corner protection component 100 protruding from the corresponding box body 300. The fitting column 220 is connected to the fitting plate 210 and is used to abut against the inclined surface 111.

[0055] Specifically, during splicing, due to the provision of the groove 230 on the fitting plate 210, the plate body 114 can be accommodated in the groove 230, so that there is no gap between adjacent box bodies 300, meeting the fitting between adjacent box bodies 300 and the fitting between adjacent display modules 400.

[0056] Further, an inclined surface 221 is provided on the fitting column 220, and the inclined surface 221 is used to fit with the inclined surface 111, so as to avoid stress concentration and improve the service life of the corner protection mechanism.

[0057] The embodiment of the present utility model further includes a spliced screen, which includes the above-mentioned corner protection mechanism, and further includes at least two finished box bodies. The finished box body includes a box body 300 and a display module 400 installed on the box body 300. The corner protection component 100 and the fitting 200 are respectively used to be installed on opposite sides of any two adjacent box bodies 300 among at least two finished box bodies.

[0058] In this application, when two adjacent box bodies 300 approach each other, since the fitting 200 abuts against the inclined surface 111, the fitting 200 will exert a thrust on the protection plate 110. Since the protection plate 110 is slidably connected to the corresponding box body 300 along the first direction, the protection plate 110 can move away from the display module 400 along the first direction, so that the side wall of the corresponding display module 400 is exposed, facilitating the fitting with the display module 400 installed on the adjacent box body 300 to achieve splicing. That is, when splicing the display module 400 in this application, it is not necessary to manually operate to retract the corner protection mechanism additionally, and the automatic contraction of the protection plate 110 can be realized, thus saving time and effort and improving the splicing efficiency.

[0059] Furthermore, mating components 200 and corner guard assemblies 100 are respectively provided on opposite sides of each box body 300, facilitating the splicing of the box body 300 with other adjacent box bodies 300.

[0060] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0061] The above-described embodiments merely represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A corner protection mechanism, characterized in that: A box for being assembled on a display screen, wherein a display module is assembled on the box; the corner protection mechanism comprises a corner protection assembly and a matching piece, wherein the corner protection assembly and the matching piece are respectively used to be installed on opposite sides of any two adjacent boxes, wherein the corner protection assembly comprises a protection plate, wherein the protection plate is slidably connected to the corresponding box along a first direction, wherein the protection plate extends to a side of the display module on the box via the corresponding box, and wherein the protection plate has an inclined surface; the matching piece is used to abut against the inclined surface, and wherein the matching piece is configured to push the protection plate away from the display module along the first direction when any two adjacent boxes approach each other; wherein the first direction forms an angle with the plane where the display module is located.

2. The corner protection mechanism according to claim 1, characterized in that: The first direction is parallel to the thickness direction of the display module.

3. The corner protection mechanism according to claim 1, characterized in that: The corner protection assembly also includes an elastic member, one end of which is connected to the corresponding box body, and the other end of which is connected to the protection plate, and the elastic member is used to apply a force to the protection plate toward the display module.

4. The corner protection mechanism according to any one of claims 1 to 3, characterized in that: The protection plate is also provided with a limiting surface connected to the inclined surface, the plane where the limiting surface is located is perpendicular to the first direction, and the limiting surface is used to fit with a side of the matching component away from the display module.

5. The corner protection mechanism according to any one of claims 1 to 3, characterized in that: The protection plate includes a plate body and a protrusion, wherein the plate body is used to extend to a side of the corresponding display module, the protrusion is connected to a side of the plate body away from the matching piece, and the side wall of the protrusion facing the display module is configured to form at least a portion of the inclined surface.

6. The corner protection mechanism according to any one of claims 1 to 3, characterized in that: The protection plate is provided with a matching hole for the matching piece to pass through, and the inclined surface is arranged on the hole wall of the matching hole and is located at a side away from the display module.

7. The corner protection mechanism according to any one of claims 1 to 3, characterized in that: The protection plate is provided with a guide hole, and the corner protection assembly further includes a guide column, which is passed through the guide hole and is slidably connected to the hole wall of the guide hole along the first direction and is connected to the corresponding box body.

8. The corner protection mechanism according to claim 7, characterized in that: The guide hole is provided with a step wall, and the guide column is provided with a protrusion, and the protrusion is used to abut against the step wall to limit the protection plate from falling out relative to the guide column.

9. The corner protection mechanism according to any one of claims 1 to 3, characterized in that: The mating part includes a mating plate and a mating column. The mating plate is used to be connected to the corresponding box body. The mating plate is provided with a groove, and the groove is used to accommodate the part of the corner guard assembly protruding from the corresponding box body. The mating column is connected to the mating plate and is used to abut against the inclined surface.

10. A spliced ​​screen, characterized in that: It comprises the corner protection mechanism as described in any one of claims 1 to 9, and also comprises at least two finished boxes, wherein the finished box comprises a box and a display module installed on the box, and the corner protection assembly and the matching piece are respectively used to be installed on the opposite sides of any two adjacent boxes among the at least two finished boxes.

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