Corner plug and display screen

Abstract

The utility model relates to a corner plug and a display screen. The corner plug comprises a shell, and the shell is provided with a first opening formed in the first direction of the corner plug and a second opening formed in the second direction of the corner plug; the plug-in structure is arranged on the shell, and at least part of the plug-in structure extends out of the shell through the first opening; the shell is provided with a second opening, the clamping structure is arranged on the shell, at least part of the clamping structure extends out of the shell through the second opening, and the clamping structure is provided with an avoiding part. Even if the first edge covering piece and the second edge covering piece are firstly installed with the screen body, the corner piece can be normally installed, the corner piece can be installed without disassembling the first edge covering piece and / or the second edge covering piece, the installation convenience and flexibility are greatly improved, the installation steps are saved, the production efficiency is improved, and the production takt is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of display devices, and in particular to a corner plug and a display screen. Background Technology

[0002] Currently, display devices such as televisions, laptops, tablets, and large advertising screens all have displays for information presentation. To improve aesthetics and protection, the screen body is surrounded by edging profiles, and corner fittings are installed at the corner notches between adjacent edging profiles to seal and connect the ends of the edging profiles as a whole.

[0003] However, current corner fittings have protruding inserts on the sides facing the two adjacent edging profiles. These inserts have a certain height and are inserted into the slots at the ends of the edging profiles to achieve the insertion and assembly of the corner fittings and edging profiles. However, in this traditional installation method, once the edging profiles are installed and fixed to the screen body, interference will occur between the inserts and the edging profiles, making it impossible to install the corner fittings smoothly. At this time, the edging profiles on one side can only be disassembled before the corner fittings can be installed normally, resulting in more installation steps, poor installation flexibility, and affecting production efficiency and cycle time. Utility Model Content

[0004] Therefore, it is necessary to provide a corner plug and display screen to address the problems of poor installation flexibility, which affects production efficiency and cycle time.

[0005] A first aspect of this application provides a corner plug, comprising:

[0006] A housing having a first opening in a first direction toward the corner plug and a second opening in a second direction toward the corner plug;

[0007] A plug-in structure, wherein the plug-in structure is disposed in the housing, and at least a portion of the plug-in structure extends to the outside of the housing through the first opening; and

[0008] A snap-fit ​​structure is provided on the housing, and at least a portion of the snap-fit ​​structure extends to the outside of the housing through the second opening, and the snap-fit ​​structure is provided with a clearance portion.

[0009] The first opening of the corner plug of the present application is arranged to face the first edge cover of the two adjacent edge covers of the corner of the screen body, and the second opening is arranged to face the second edge cover. Even if the first edge cover and the second edge cover are first fixed to the two adjacent sides of the screen body, the first opening is provided with the clamping structure, and the second opening is provided with the clamping structure. When the corner piece is aligned and pushed close to the first edge cover, the clamping structure can pass over the side wall of the second edge cover through the avoiding part during the process of inserting the insertion structure into the first edge cover. When the insertion structure is inserted into the first edge cover, the clamping structure is also clamped and assembled with the second edge cover. Therefore, the corner piece, the first edge cover and the second edge cover can be assembled and connected. Compared with the prior art, even if the first edge cover and the second edge cover are first fixed to the two adjacent sides of the screen body, the corner piece can be normally installed without the need to disassemble the first edge cover and / or the second edge cover to install the corner piece. The installation convenience and flexibility are greatly improved, the installation steps are saved, the production efficiency is improved, and the production rhythm is ensured.

[0010] The technical solutions of the present application are further described below:

[0011] In one embodiment, the shell includes a first shell plate, and the insertion structure includes a first tab. One end of the first tab is arranged on the first shell plate, and the other end of the first tab extends out of the shell through the first opening.

[0012] In one embodiment, the shell further includes an arc-shaped shell plate connected to the first shell plate. The arc-shaped shell plate includes a first part, and the insertion structure further includes a second tab. One end of the second tab is arranged on the first part, and the other end of the second tab extends out of the shell through the first opening.

[0013] In one embodiment, the arc-shaped shell plate further includes a second part arc-shapedly connected to the first part. The shell further includes a reinforcing rib plate connected to the inner sides of the first part and the second part.

[0014] In one embodiment, the insertion structure further includes a third tab. One end of the third tab is arranged on the reinforcing rib plate, and the other end of the third tab extends out of the shell through the first opening.

[0015] In one embodiment, the first tab, the second tab and the third tab are arranged in a triangular shape.

[0016] The side of the first tab away from the third tab is provided with a first convex structure; or / and

[0017] The second gusset is provided with a second embossed structure on the side away from the first gusset and the third gusset; or / and

[0018] The third gusset is provided with a third embossed structure on the side away from the first gusset.

[0019] In one of the embodiments, the clamping structure comprises a clamping hook, the clamping hook is provided with a clamping surface and a clamping surface arranged oppositely, and the clamping surface constitutes the clamping portion.

[0020] In one of the embodiments, the clamping hook is provided with a plurality of clamping hooks, which are respectively a first clamping hook, a second clamping hook and a third clamping hook, the first clamping hook is arranged on the first shell plate, the second clamping hook is arranged on the second part of the arc-shaped shell plate, and the third clamping hook is arranged on the reinforcing rib plate, and the first clamping hook, the second clamping hook and the third clamping hook are arranged side by side and spaced apart along the third direction of the corner plug.

[0021] In one of the embodiments, the shell further comprises a second shell plate, the second shell plate and the first shell plate are respectively and one by one connected to the opposite sides of the arc-shaped shell plate along the third direction of the corner plug;

[0022] The first shell plate, the arc-shaped shell plate and the second shell plate cooperate to form the first opening and the second opening, and the first opening and the second opening are in communication.

[0023] The second aspect of the present application also proposes a display screen, which comprises:

[0024] A screen body, the screen body comprises a first side surface and a second side surface arranged adjacent and at an included angle;

[0025] A first edge covering member, the first edge covering member is arranged on the first side surface, and the first edge covering member is provided with a plug-in portion near the end portion close to the second side surface;

[0026] A second edge covering member, the second edge covering member is arranged on the second side surface, and the second edge covering member is provided with a clamping portion near the end portion close to the first side surface, and a gap groove is formed between the second edge covering member and the first edge covering member; and

[0027] A corner plug as described above is arranged in the gap groove, and the plug-in structure is plug-in fixed with the plug-in portion, and the clamping structure is clamping fixed with the clamping portion. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings which form a part of this application are is to provide further understanding of this application, and the schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute improper limitations to the present application.

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative effort based on these drawings.

[0030] Figure 1 Structure schematic diagram of an embodiment of the assembly of the screen body, the first edge covering member and the second edge covering member of the display screen.

[0031] Figure 2 Structure schematic diagram of the partial explosion of the display screen.

[0032] Figure 3 Structure schematic diagram of the corner plug according to an embodiment.

[0033] Figure 4 Structure schematic diagram of Figure 3 Structure schematic diagram of another view.

[0034] Figure 5 Structure schematic diagram of Figure 4 Structure schematic diagram of the partial enlargement of A in FIG. 8.

[0035] Explanation of reference signs:

[0036] 100, display screen; 10, corner plug; 11, shell; 111, first opening; 112, second opening; 113, first shell plate; 114, arc-shaped shell plate; 114a, first part; 114b, second part; 115, reinforcing rib plate; 116, second shell plate; 12, plug-in structure; 121, first plug; 122, second plug; 122a, second convex structure; 123, third plug; 123a, third convex structure; 13, clamping structure; 131, first clamping hook; 132, second clamping hook; 133, third clamping hook; 13a, avoiding surface; 13b, clamping surface; 20, screen body; 30, first edge covering member; 31, first insertion hole; 40, second edge covering member; 41, second insertion hole. DETAILED DESCRIPTION

[0037] In order to make the above purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application 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 spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0038] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0039] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0041] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0042] It is to be noted that if an element is referred to as being "fixed to" or "attached to" another element, it can be directly on the other element or intervening elements can also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms are intended to be illustrative only and are not intended to be limiting.

[0043] In order to improve the appearance and protection performance, the screen body of the display screen is provided with a wrapping profile around the screen body. A corner piece is further installed between the corner gap of the adjacent two wrapping profiles to achieve the blocking and connection of the end of the wrapping profile. However, the current corner piece protrudes a plug towards the side surface of the adjacent two wrapping profiles. The plug has a certain height and is inserted into the socket at the end of the wrapping profile to realize the plug-in assembly of the corner piece and the wrapping profile. However, in the traditional installation method, once the wrapping profile is first installed and fixed to the screen body, interference will be caused between the plug and the wrapping profile, which will cause the corner piece to be unable to be installed smoothly. At this time, the corner piece can only be normally installed after the wrapping profile on one side is disassembled, which increases the installation steps and reduces the installation flexibility, thereby affecting the production efficiency and rhythm.

[0044] In view of the above problems, the plug-in structure and the clamping structure are designed on the corner plug, and the avoiding part is arranged on the clamping structure. During the plug-in installation of the plug-in structure and the first wrapping part, the clamping structure can pass through the second wrapping part with the help of the avoiding part, and then finally normally clamps and assembles with the second wrapping part, so as to avoid the problem that the corner plug cannot be normally installed after the first wrapping part and the second wrapping part are installed.

[0045] Referring to Figure 1 and Figure 2 , an embodiment of the present application shows a partial structure schematic diagram of a display screen 100. The structure part shown includes a screen body 20, a first wrapping part 30, a second wrapping part 40 and a corner plug 10.

[0046] Among them, the screen body 20 is an electronic screen for displaying information, which can be but is not limited to an LED screen.

[0047] Generally, the screen body 20 is rectangular in structure. The screen body 20 has two long sides and two end sides, and the two long sides and the two end sides alternately connect end to end along the circumferential direction of the screen body 20.

[0048] Specifically in the present application, the screen body 20 includes a first side and a second side which are adjacent and arranged at an angle. The first side corresponds to the long side, and the second side corresponds to the end side. The first side and the second side are arranged at a right angle.

[0049] The first edge covering member 30 is arranged on the first side surface, and the first edge covering member 30 is provided with a plug-in portion near the end of the second side surface. The second edge covering member 40 is arranged on the second side surface, and the second edge covering member 40 is provided with a clamping portion near the end of the first side surface, and a gap groove is formed between the second edge covering member 40 and the first edge covering member 30. The corner plug 10 is arranged in the gap groove, and the plug-in structure 12 is plug-in fixed with the plug-in portion, and the clamping structure 13 is clamped fixed with the clamping portion.

[0050] It is easy to understand that the two long side surfaces and the two end side surfaces cooperatively form four gap grooves, and one corner plug 10 is needed to be arranged in each gap groove, so that the circumferential direction of the screen body 20 forms a closed and smooth appearance structure, and the display screen 100 is improved in appearance and safety.

[0051] Optionally, the first edge covering member 30 and the second edge covering member 40 are made of metal profiles, such as aluminum alloy profiles, which are easy to obtain and durable.

[0052] Please continue to refer to Figure 3 and Figure 4 , exemplarily, the corner plug 10 includes a shell 11, a plug-in structure 12, and a clamping structure 13.

[0053] The shell 11 has a first opening 111 opened in a first direction of the corner plug 10, and a second opening 112 opened in a second direction of the corner plug 10; the plug-in structure 12 is arranged in the shell 11, and at least part of the plug-in structure 12 extends to the outside of the shell 11 through the first opening 111; the clamping structure 13 is arranged in the shell 11, and at least part of the clamping structure 13 extends to the outside of the shell 11 through the second opening 112, and the clamping structure 13 is provided with a avoiding portion.

[0054] For example, the first direction is specifically the X-axis direction in Figure 3 , the second direction is specifically the Z-axis direction in Figure 3 , and the third direction is specifically the Y-axis direction in Figure 3 .

[0055] In summary, the implementation of the technical scheme of the embodiment will have the following beneficial effects: in the corner plug 10 of the application, the first opening 111 and the second opening 112 are respectively formed on the shell 11, the first opening 111 is just opposite to the first edge covering part 30 of the adjacent two edge covering parts at the corner position of the screen body 20 during installation of the corner plug 10, and the second opening 112 is just opposite to the second edge covering part 40 of the adjacent two edge covering parts, so even if the first edge covering part 30 and the second edge covering part 40 are first installed and fixed on the adjacent two sides of the screen body 20, since the first opening 111 is provided with the clamping structure 13, and the second opening 112 is also provided with the clamping structure 13, when the corner part is aligned and pushed close to the first edge covering part 30, so that the insertion structure 12 is inserted and installed with the first edge covering part 30, the clamping structure 13 can pass over the side wall of the second edge covering part 40 through the avoiding part, when the insertion structure 12 is inserted in place with the first edge covering part 30, the clamping structure 13 is also clamped and assembled with the second edge covering part 40, thereby the corner part, the first edge covering part 30 and the second edge covering part 40 are assembled and connected, compared with the prior art, even if the first edge covering part 30 and the second edge covering part 40 are installed with the screen body 20, the corner part can be normally installed, without the need to disassemble the first edge covering part 30 and / or the second edge covering part 40 to install the corner part, greatly improving the convenience and flexibility of installation, saving installation steps, improving production efficiency and ensuring production rhythm.

[0056] Please continue to refer to Figure 3 and Figure 4 , specifically, in one embodiment, the shell 11 includes a first shell plate 113, the insertion structure 12 includes a first insertion sheet 121, one end of the first insertion sheet 121 is arranged on the first shell plate 113, and the other end of the first insertion sheet 121 is arranged outside the shell 11 through the first opening 111.

[0057] The end of the first edge covering part 30 towards the corner plug 10 is provided with a first insertion hole 31 (i.e. an insertion part), the first insertion hole 31 is a rectangular hole, the position of the first insertion sheet 121 corresponds to one of the wide side hole walls of the first insertion hole 31, so that the first insertion sheet 121 can abut against the corresponding wide side hole wall after being inserted into the first insertion hole 31, thereby realizing installation and fixation of the corner plug 10 and the first edge covering part 30.

[0058] Further, the shell 11 further includes an arc-shaped shell plate 114 connected with the first shell plate 113, the arc-shaped shell plate 114 includes a first part 114a, the insertion structure 12 further includes a second insertion sheet 122, one end of the second insertion sheet 122 is arranged on the first part 114a, and the other end of the second insertion sheet 122 is arranged outside the shell 11 through the first opening 111.

[0059] The position of the second tab 122 corresponds to one of the long side hole walls of the first insertion hole 31, so that the second tab 122 can abut against the corresponding long side hole wall after being inserted into the first insertion hole 31, thereby achieving the assembly and fixation of the corner plug 10 and the first edge covering member 30.

[0060] In order to improve the structural strength of the corner plug 10 and enhance its durability and anti-damage capability, the arc-shaped shell plate 114 further comprises a second part 114b connected to the first part 114a in an arc-shaped transition manner, and the shell 11 further comprises a reinforcing rib plate 115 connected to the inner side of the first part 114a and the second part 114b.

[0061] Preferably, the reinforcing rib plate 115 is integrally formed with the arc-shaped shell plate 114, thereby reducing the number of parts and achieving better overall structural performance.

[0062] Please continue to refer to Figure 3 and Figure 4 In addition, based on any of the above embodiments, the plug-in structure 12 further comprises a third tab 123, one end of the third tab 123 is arranged on the reinforcing rib plate 115, and the other end of the third tab 123 extends to the outside of the shell 11 through the first opening 111. The position of the third tab 123 corresponds to the other long side hole wall of the first insertion hole 31, so that the third tab 123 can abut against the corresponding long side hole wall after being inserted into the first insertion hole 31, thereby achieving the assembly and fixation of the corner plug 10 and the first edge covering member 30.

[0063] It is easy to understand that the abutment of the first tab 121, the second tab 122 and the third tab 123 against the hole wall of the first insertion hole 31 at the same time helps to improve the connection strength and stability of the corner plug 10 and the first edge covering member 30.

[0064] Further, in another optional embodiment, the first tab 121, the second tab 122 and the third tab 123 are arranged in a triangular shape.

[0065] Please continue to refer to Figure 3 and Figure 4 The side of the first tab 121 away from the third tab 123 is provided with a first convex structure; or / and the side of the second tab 122 away from the first tab 121 and the third tab 123 is provided with a second convex structure 122a; or / and the side of the third tab 123 away from the first tab 121 is provided with a third convex structure 123a.

[0066] Preferably, the first, second 122a and third 123a convex structures exist simultaneously, and abut against the hole wall of the first insertion hole 31, which can play a better limiting and clamping effect, preventing the corner plug 10 from being loosened and displaced relative to the first edge covering member 30 after installation, resulting in a gap that affects the appearance and protection ability.

[0067] For example, the first, second 122a and third 123a convex structures can adopt a protruding structure in the shape of a bar, a wave, a circular truncated cone, etc., which can be flexibly selected according to actual needs.

[0068] Please continue to refer to Figures 3 to 5 In addition, in yet another embodiment, the clamping structure 13 includes a clamping hook having an avoidance surface 13a and a clamping surface 13b arranged opposite to each other, and the avoidance surface 13a forms an avoidance portion. When the corner plug 10 is pressed into the gap slot, the avoidance portion formed by the avoidance surface 13a forms a sliding fit with the outer wall of the second edge covering member 40, so that the clamping hook can easily pass over the outer wall to avoid interference and installation problems; after the insertion structure 12 is inserted into the first insertion hole 31, the synchronously moving clamping hook also passes over the outer wall and is clamped into the second insertion hole 41 (i.e., the clamping portion) formed at the end of the second edge covering member 40, at which time the clamping surface 13b is clamped with the hole wall of the second insertion hole 41 to achieve clamping and installation of the corner plug 10 with the second edge covering member 40 through the clamping hook.

[0069] Further, the clamping hook is provided with a plurality of first, second 131, 132 and third 133 clamping hooks, the first clamping hook 131 is arranged on the first shell plate 113, the second clamping hook 132 is arranged on the second part 114b of the arc-shaped shell plate 114, and the third clamping hook 133 is arranged on the reinforcing rib plate 115. The first, second 131, 132 and third 133 clamping hooks are arranged side by side and spaced apart along the third direction of the corner plug 10. In this way, the first, second 131, 132 and third 133 clamping hooks are simultaneously clamped in the second clamping hole, forming a multi-point clamping and fixing, which can further improve the connection strength between the corner plug 10 and the second edge covering member 40, improve the anti-damage and impact resistance, and avoid the gap between the corner plug 10 and the second edge covering member 40 affecting the appearance and protection effect.

[0070] It should be noted that, in order to further provide installation strength, at least one of the first, second 131, 132 and third 133 clamping hooks can be provided with more than one.

[0071] In addition, on the basis of any of the above embodiments, the shell 11 further comprises a second shell plate 116, the second shell plate 116 and the first shell plate 113 are respectively and one-to-one corresponding connected to the opposite sides of the arc-shaped shell plate 114 along the third direction of the corner plug 10. When installed, the first shell plate 113 and the second shell plate 116 provide a holding position, which facilitates the workers or the mechanical hand to grab the corner plug 10 for installation operation.

[0072] The first shell plate 113, the arc-shaped shell plate 114 and the second shell plate 116 cooperatively enclose the first opening 111 and the second opening 112, and the first opening 111 and the second opening 112 are communicated. The forming structure of the first opening 111 and the second opening 112 is simple, and when installed, it is not easy to interfere with the existing structure on the screen body 20, the first edge covering member 30 and the second edge covering member 40.

[0073] The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0074] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A corner plug, characterized in that The shell comprises a first shell plate, the plug-in structure comprises a first plug-in sheet, one end of the first plug-in sheet is arranged on the first shell plate, and the other end of the first plug-in sheet extends out of the shell through the first opening. The shell further comprises an arc-shaped shell plate connected with the first shell plate, the arc-shaped shell plate comprises a first part, the plug-in structure further comprises a second plug-in sheet, one end of the second plug-in sheet is arranged on the first part, and the other end of the second plug-in sheet extends out of the shell through the first opening. The arc-shaped shell plate further comprises a second part connected with the first part in an arc-shaped transition manner, and the shell further comprises a reinforcing rib plate connected to the inner sides of the first part and the second part. The plug-in structure further comprises a third plug-in sheet, one end of the third plug-in sheet is arranged on the reinforcing rib plate, and the other end of the third plug-in sheet extends out of the shell through the first opening. The first plug-in sheet, the second plug-in sheet and the third plug-in sheet are arranged in a triangular shape.

2. The corner elbow according to claim 1, characterized in that The side of the first plug-in sheet away from the third plug-in sheet is provided with a first convex structure; or / and 3. The corner elbow according to claim 2, wherein, The side of the second plug-in sheet away from the first plug-in sheet and the third plug-in sheet is provided with a second convex structure; or / and 4. The corner elbow of claim 3, wherein, The side of the third plug-in sheet away from the first plug-in sheet is provided with a third convex structure.

5. The corner elbow of claim 4, wherein, The card structure comprises a hook, the hook has oppositely arranged avoiding surfaces and a clamping surface, and the avoiding surfaces constitute the avoiding part.

6. The corner elbow of claim 5, wherein, The hook is provided with a plurality of first hooks, second hooks and third hooks, the first hook is arranged on the first shell plate, the second hook is arranged on the second part of the arc-shaped shell plate, and the third hook is arranged on the reinforcing rib plate. The first shell plate, the arc-shaped shell plate and the second shell plate are connected on opposite sides of the arc-shaped shell plate along the third direction of the corner plug in a one-to-one correspondence. The first shell plate, the arc-shaped shell plate and the second shell plate cooperate to form the first opening and the second opening, and the first opening and the second opening are in communication. The screen body comprises a first side surface and a second side surface arranged adjacent to each other at an included angle; 7. The corner elbow of claim 4, wherein, The first edge covering member is arranged on the first side surface, and the first edge covering member is provided with a plug-in part close to the end portion of the second side surface; 8. The corner elbow of claim 7, wherein, ​ 9. The corner elbow as defined in claim 3 wherein, ​ ​ 10. A display screen, characterized by ​ ​ ​ A second edge covering member is arranged on the second side surface, and a clamping portion is arranged on an end portion of the second edge covering member close to the first side surface, and a gap groove is formed between the second edge covering member and the first edge covering member. The corner plug of any one of claims 1 to 9 is arranged in the gap groove, and the insertion structure is fixedly inserted into the insertion portion, and the clamping structure is fixedly clamped to the clamping portion.

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