Writing screen and intelligent blackboard

Abstract

The utility model provides a writing screen and an intelligent blackboard, and relates to the technical field of writing screens. The writing screen comprises a supporting plate, a writing panel and a shielding plate. Wherein the shielding plate comprises a connecting part, a bending part and a shielding part, and the bending part is connected with the connecting part and the shielding part. The connecting part is arranged on the second face and connected with the supporting plate, the bending part is located on the side face, the shielding part is located on the side, away from the side face, of the bending part and extends to the side, away from the first face, of the second face, and the shielding part is used for shielding the second face. Compared with a writing screen in the prior art, a rolling frame is omitted, so that the structure of the writing screen is simplified, and the assembling efficiency is improved. Meanwhile, the shielding plate is simple in installation mode and can be rapidly installed on site, the packaging size is saved, and the reliability of products in the transportation process is improved.

Description

Technical Field

[0001] The present application relates to the technical field of writing screens, and in particular to a writing screen and a smart blackboard. Background Art

[0002] Existing writing screens generally include components such as a writing panel, a honeycomb panel, a roll-tied frame and a shielding plate. During assembly, a roll-tied frame is required to seal the sides of the writing panel and the honeycomb panel, and then the shielding plate is installed to form an assembly, which results in a complex structure of the writing screen and low assembly efficiency. Utility Model Content

[0003] The present application provides a writing screen for a smart blackboard, wherein the writing screen comprises a supporting plate, a writing panel and a shielding plate;

[0004] The support plate comprises a first surface, a second surface arranged opposite to the first surface, and a side surface connecting the first surface and the second surface, and the writing panel is located on the first surface and is stacked with the support plate;

[0005] The shielding plate includes a connecting portion, a bending portion and a shielding portion, the bending portion connects the connecting portion and the shielding portion, the connecting portion is arranged on the second surface and connected to the supporting plate, the bending portion is located on the side surface, the shielding portion is located on a side of the bending portion away from the side surface and extends to a side of the second surface away from the first surface, and the shielding portion is used to shield the second surface.

[0006] In a possible implementation of the present application, the writing panel includes a writing surface and a panel flange bent toward the side surface, and a portion of the panel flange close to the bending portion abuts against the bending portion.

[0007] In a possible implementation of the present application, the panel flange covers the side surface.

[0008] In a possible implementation of the present application, the side includes a first side, the panel flange includes a first panel flange bent toward the first side, the first panel flange is close to the first side, the bending portion is located on the side of the first panel flange away from the first side and is abutted against the first panel flange, and the shielding portion is used to shield the second side on the side of the first panel flange.

[0009] In a possible implementation of the present application, the side also includes a third side arranged opposite to the first side, and the panel flange also includes a third panel flange bent toward the third side, the third panel flange is close to the third side, and one side of the third panel flange is used to be spliced ​​with the main display screen of the smart blackboard.

[0010] In a possible implementation of the present application, the side further includes a second side and a fourth side that are arranged opposite to each other, the second side is connected to the first side and the third side, and the fourth side is connected to the first side and the third side;

[0011] The panel flange includes a second panel flange bent toward the second side surface and a second bottom flange, the second panel flange is arranged opposite to the second side surface, the second bottom flange is located at an end of the second panel flange away from the writing surface, and the second bottom flange is arranged opposite to the writing surface;

[0012] And / or, the panel flange includes a fourth panel flange bent toward the fourth side surface and a fourth bottom surface flange, the fourth panel flange is spaced apart from the fourth side surface, the fourth bottom surface flange is located at an end of the fourth panel flange away from the writing surface, and the fourth bottom surface flange is arranged opposite to the writing surface.

[0013] In a possible implementation of the present application, one end of the bending portion is connected to the connecting portion, and the other end of the bending portion is connected to the shielding portion, and the connecting portion, the bending portion and the shielding portion are an integrally bent structure.

[0014] In a possible implementation of the present application, the shielding portion is a plate-like structure, and the shielding portion also includes a first end plate and a second end plate extending from both ends along the length direction of the first side surface, the first end plate and the second end plate are arranged opposite to each other, and the first end plate and the second end plate are both located on the side of the shielding plate close to the second surface.

[0015] In a possible implementation of the present application,

[0016] The connecting portion is in a plate-like structure, a first flange is provided on one side of the first end plate close to the second surface, a first avoidance is provided on one end of the connecting portion close to the first flange, and the first flange and the connecting portion are located on the same plane and both abut against the second surface;

[0017] And / or, the connecting portion is a plate-like structure, a second flange is provided on the side of the second end plate close to the second surface, a second avoidance opening is provided on the end of the connecting portion close to the second flange, and the second flange and the connecting portion are located on the same plane and both abut against the second surface.

[0018] In a possible implementation of the present application, a third flange is further provided at one end of the shielding portion away from the bending portion, and the third flange and the connecting portion are located on the same side of the shielding portion and are arranged opposite to each other.

[0019] On the other hand, the present application provides a smart blackboard, which includes a main display screen and the writing screen, and the writing screen is arranged on the side of the main display screen in the horizontal direction.

[0020] The shielding plate connecting part, the bending part and the shielding part in the present application, the bending part connects the connecting part and the shielding part, is arranged on the second surface and fixedly connected to the support plate through the connecting part, the bending part is located on the side surface, the shielding part is located on the side of the bending part away from the side surface, and extends to the side of the second surface away from the first surface, and the shielding part is used to shield the second surface, so that the bending part of the shielding plate has the function of edge sealing, and compared with the writing screen in the prior art, the roller-tied frame is omitted, thereby simplifying the structure of the writing screen and improving the assembly efficiency. At the same time, the shielding plate in the present application is simple to install, can be quickly installed on site, saves packaging volume, and improves the reliability of the product during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 is a structural schematic diagram of an embodiment of a writing screen provided in an embodiment of the present application;

[0023] Figure 2 yes Figure 1 A schematic diagram of the structure of the writing screen in another viewing angle;

[0024] Figure 3 yes Figure 1 A schematic diagram of a partially enlarged structure in which the middle writing screen is disconnected at FF;

[0025] Figure 4 yes Figure 3 A schematic diagram of the structure of the partial enlarged view at C in the middle;

[0026] Figure 5 yes Figure 3 A schematic diagram of a partially enlarged structure in which the middle writing screen is disconnected at EE;

[0027] Figure 6 is a schematic structural diagram of an embodiment of a shielding plate provided in an embodiment of the present application;

[0028] Figure 7 yes Figure 6 A schematic diagram of the structure of the shielding plate in another perspective;

[0029] Figure 8 yes Figure 6 A schematic diagram of the local enlarged structure at point A in the middle;

[0030] Fig. 9 is a structural schematic diagram of an embodiment of a writing panel provided in an embodiment of the present application;

[0031] Fig.10 yes Fig. 9 A schematic diagram of the local enlarged structure at B in the middle;

[0032] Fig.11 yes Fig. 9 A schematic diagram of the local enlarged structure at D in the middle;

[0033] Fig.12 yes Fig. 9 Schematic diagram of the local enlarged structure at G in the middle.

[0034] Figure numbers: 1000, writing screen; 100, supporting plate; 120, second side; 130, side; 132, second side; 200, writing panel; 210, writing surface; 220, panel flange; 221, first panel flange; 222, second panel flange; 223, third panel flange; 224, fourth panel flange; 225, second bottom surface flange; 226, first bottom surface flange; 227, fourth bottom surface flange; 300, shielding plate; 310, connecting part; 311, first avoidance; 320, bending part; 330, shielding part; 331, third flange; 340, first end plate; 341, first flange; 350, second end plate; 351, second flange; 400, threaded hole. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or illustration." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to implement and use the invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the invention can be implemented without using these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of the invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0039] The embodiments of the present application provide a writing screen having the advantages of simple structure, high transportation reliability, low cost, and high assembly efficiency, which are described in detail below.

[0040] It should be noted that the existing writing screen generally includes components such as a writing panel, a honeycomb panel, a roll-tied frame and a shielding plate. During assembly, a roll-tied frame is used to seal the sides of the writing panel and the honeycomb panel, and then the shielding plate is installed to form an assembly, which leads to a complex structure of the writing screen and low assembly efficiency.

[0041] The present application provides a shielding plate with a novel structure, in which a bent portion is arranged on the shielding plate to abut against the side of a support plate, so that the bent portion of the shielding plate has an edge sealing function, thereby simplifying the structure of the writing screen and improving assembly efficiency.

[0042] For this reason, please see Figures 1 to 12 The present application provides a writing screen 1000 for a smart blackboard, wherein the writing screen 1000 includes a supporting plate 100 , a writing panel 200 and a shielding plate 300 .

[0043] Among them, see Figures 1 to 4, the support plate 100 includes a first surface (a surface close to the writing panel 200), a second surface 120 arranged opposite to the first surface, and a side surface 130 connecting the first surface and the second surface 120, and the writing panel 200 is located on the first surface and is stacked with the support plate 100. It should be noted that the support plate 100 in the present application is a rigid structure or other plastic structure with relatively high strength, which is used to support the writing panel 200. The support plate 100 can be a multi-layer composite board, or an aluminum or plastic honeycomb board, which is not limited here. The shape of the support plate 100 is adapted to the shape of the writing panel 200. For example, the orthographic projection of the writing panel 200 is a rectangle, and the orthographic projection of the support plate 100 is a rectangle; for another example, the orthographic projection of the writing panel 200 is a circle, and the orthographic projection of the support plate 100 is a circle, etc., which are not limited here. The first surface can be the front of the support plate 100, that is, the side for installing the writing panel 200. The second surface 120 of the support plate 100 is also the reverse side of the support plate 100, that is, the side of the support plate 100 facing away from the writing panel 200. Exemplarily, the side of the writing panel 200 facing the support plate 100 is bonded and fixed to the first surface.

[0044] Among them, see Figures 3 to 7The shielding plate 300 includes a connecting portion 310, a bending portion 320 and a shielding portion 330, the bending portion 320 connects the connecting portion 310 and the shielding portion 330, the connecting portion 310 is arranged on the second surface 120 and is fixedly connected to the support plate 100, the bending portion 320 is located on the side surface 130 and abuts against the side surface 130, the shielding portion 330 is located on the side of the second surface 120 away from the first surface (exemplarily, the side surface 130 is a plane, and the shielding portion extends along the extension direction of the side surface 130 (that is, the thickness direction of the support plate) to the side of the second surface 120 away from the first surface 110), and the shielding portion 330 is used to shield the second surface 120. It should be noted that the bending portion 320 and the side surface 130 may be directly abutted against each other, or the bending portion 320 and the side surface 130 may be abutted against each other at intervals, that is, the bending portion 320 and the side surface 130 may be abutted against each other through other components. Exemplarily, the bending portion 320 and the side surface 130 are abutted against each other through the panel flange 220 of the writing panel 200. Specifically, the panel flange 220 of the writing panel 200 is located between the bending portion 320 and the side surface 130, the side of the bending portion 320 close to the side surface 130 abuts against the panel flange 220, and the side of the bending portion 320 facing away from the side surface 130 is arranged opposite to the shielding portion 330. The dimension of the bending portion 320 in the thickness direction of the writing panel 200 is the same as or similar to the thickness of the writing panel 200. The shielding portion 330 is formed by bending 180° outward from the end of the bending portion 320 away from the connecting portion 310 (i.e., the side of the bending portion 320 away from the supporting plate 100), so that the end of the bending portion 320 away from the connecting portion 310 is substantially in the same plane as the front of the writing panel 200. The connection between the bending portion 320 and the shielding portion 330 forms an arc transition, thereby avoiding scratching the operator, and making the side of the writing panel 200 stronger, more neat and beautiful in appearance, and easy to process and shape. Exemplarily, the shielding plate 300 is a sheet metal part, and the connecting portion 310, the bending portion 320 and the shielding portion 330 are an integrated structure. This embodiment is conducive to improving the structural strength of the shielding plate 300.

[0045] It is understandable that the writing screen 1000 is generally fixed on the wall. For example, a mounting bracket is provided on the second surface 120 of the support plate 100, and the writing screen 1000 is fixed on the wall through the mounting bracket, resulting in a certain gap between the writing panel 200 and the wall. The shielding portion 330 is used to shield the gap, so that after the writing screen 1000 is installed, the mounting structure on the second surface 120 cannot be directly observed from the side 130 of the writing screen 1000, which is conducive to improving the aesthetics of the writing screen 1000. Of course, in other embodiments of the present application, the writing screen 1000 can also be fixed on other structures besides the wall, which is not limited here.

[0046] Compared with the prior art, the shielding plate 300 in the present application includes a connecting portion 310, a bending portion 320 and a shielding portion 330. The bending portion 320 connects the connecting portion 310 and the shielding portion 330, is arranged on the second surface 120 through the connecting portion 310 and is fixedly connected to the support plate 100, the bending portion 320 is located on the side surface 130, specifically, the bending portion 320 abuts against the side surface 130, the shielding portion 330 is located on the side of the second surface 120 away from the first surface, and the shielding portion 330 is used to shield the second surface 120 and the mounting structure located on the second surface 120, so that the bending portion 320 of the shielding plate 300 has an edge sealing effect, and the roll-bound frame is omitted compared to the writing screen 1000 in the prior art, thereby simplifying the structure of the writing screen 1000 and improving the assembly efficiency. At the same time, the shielding plate 300 in the present application is simple to install and can be quickly installed on site, which is conducive to saving packaging volume and improving the reliability of the product during transportation.

[0047] In some embodiments of this application, please refer to Figure 5 The writing panel 200 includes a writing surface 210 and a panel flange 220 bent toward the side surface 130, and a portion of the panel flange 220 close to the bent portion 320 abuts against the bent portion 320. It can be understood that the writing surface 210 of the writing panel 200 refers to the side of the writing panel 200 used for writing, that is, the side of the writing panel 200 facing away from the support plate 100. The writing panel 200 is generally a sheet metal part. In order to facilitate writing, a coating layer for facilitating writing is generally provided on the writing surface 210 of the writing panel 200. Among them, the material of the coating layer does not belong to the improvement point of the present application and will not be further elaborated here.

[0048] It should be noted that in the present application, the panel flange 220 may be close to the entire side 130, or the panel flange 220 may be close to a part of the side 130. The panel flange 220 and the part of the side 130 may be close to each other, or the panel flange 220 and the part of the side 130 may be glued together, which is not limited here. Furthermore, the panel flange 220 covers the side 130. Taking the orthographic projection of the support plate 100 as a rectangular structure as an example, the side 130 of the support plate 100 includes a first side and a third side relatively arranged along the length of the writing screen 1000, and a second side 132 and a fourth side relatively arranged along the width direction of the writing screen 1000. Please refer to Figures 9 to 12The panel flange 220 includes a first panel flange 221, a second panel flange 222, a third panel flange 223 and a fourth panel flange 224. The first panel flange 221 is arranged opposite to the first side surface, the second panel flange 222 is arranged opposite to the second side surface 132, the third panel flange 223 is arranged opposite to the third side surface, and the fourth panel flange 224 is arranged opposite to the fourth side surface. Specifically, the first panel flange 221 is in contact with or close to the first side surface (that is, there is a small gap), or an adhesive layer is filled between the first panel flange 221 and the first side surface, and the first panel flange 221 is in contact with the first side surface through the adhesive layer (that is, the first panel flange is fixedly connected to the first side surface through the adhesive layer). Similarly, the second panel flange 222 abuts against the second side 132 or there is a small gap, or an adhesive layer may be filled between the second panel flange 222 and the second side, and the second panel flange 222 abuts against the second side through the adhesive layer (that is, the second panel flange and the second side are fixedly connected by the adhesive layer). The third panel flange 223 abuts against the third side or there is a small gap, or an adhesive layer may be filled between the third panel flange 223 and the third side, and the third panel flange 223 abuts against the third side through the adhesive layer (that is, the third panel flange and the third side are fixedly connected by the adhesive layer). The fourth panel flange 224 abuts against the fourth side or there is a small gap, or an adhesive layer may be filled between the fourth panel flange 224 and the fourth side, and the fourth panel flange 224 abuts against the fourth side through the adhesive layer (that is, the fourth panel flange and the fourth side are fixedly connected by the adhesive layer). The above settings enable the panel flange 220 to abut against part of the side 130 or the entire side 130.

[0049] In some embodiments of the present application, the panel flange 220 includes a side flange and a bottom flange, the bottom flange is located at the end of the side flange away from the writing surface 210, and the bottom flange is substantially parallel to the writing surface 210, that is, a "U"-shaped edge is formed at the edge of the writing panel 200. For details, please refer to Figures 9 to 11The side flange includes a first panel flange 221, a second panel flange 222, a third panel flange 223 and a fourth panel flange 224. For example, the first panel flange 221 and the third panel flange 223 are mirror-symmetrical structures, and the second panel flange 222 and the fourth panel flange 224 are mirror-symmetrical structures. Further, the bottom flange includes a second bottom flange 225 bent from the second panel flange 222 to the direction of the fourth panel flange 224. The second panel flange 222 is substantially perpendicular to the writing surface, and the second bottom flange 225 is substantially perpendicular to the second panel flange 222, so that the second bottom flange 225, the second panel flange 222 and the portion of the writing surface 210 close to the second panel flange 222 together form a "U"-shaped covering structure, which is conducive to improving the structural strength of the writing screen 1000. At the same time, the sharp edge of the writing panel 200 (that is, the end of the second bottom surface flange 225 away from the second panel flange 222) can be hidden in the second surface 120 of the support plate 100, and there is no need to perform additional processing on the sharp edge of the writing panel 200, which is conducive to simplifying the preparation process of the writing screen 1000 and reducing the preparation cost.

[0050] In some embodiments of the present application, the bottom flange includes a second bottom flange 225 bent from the second panel flange 222 toward the direction of the fourth panel flange 224, and a fourth bottom flange 227 bent from the fourth panel flange 224 toward the direction of the second panel flange 222, and no flange is provided on the bottom surface of the first panel flange 221 and the third panel flange 223. In this embodiment, the first panel flange 221 is configured to abut against the bending portion 320, and the third panel flange 223 is configured to be spliced ​​and connected with the main display screen of the smart blackboard, so the bottom flanges on the first panel flange 221 and the third panel flange 223 can be omitted, thereby reducing the preparation process and reducing the amount of writing panels.

[0051] In some embodiments of the present application, the writing surface 210 is bonded and fixed to the front of the support plate 100, the side flange is bonded and fixed to the side 130 of the support plate 100, and the bottom flange (such as the second bottom flange 225 or the fourth bottom flange) is bonded and fixed to the second surface 120. This structural arrangement can increase the direct connection area between the writing panel 200 and the support plate 100, and can significantly increase the strength of the writing screen 1000. At the same time, the writing panel 200 covers the entire front, the entire side 130 and part of the back of the support plate 100, which can significantly improve the sealing performance of the writing screen 1000. Of course, in other embodiments of the present application, only the writing surface 210 can be bonded and fixed to the front of the support plate 100 so that the writing panel 200 is fixedly connected to the support plate 100, which is not limited here.

[0052] In some embodiments of this application, please refer to Figure 3 and Figure 4, the panel flange 220 abuts against part of the side surface 130 of the support plate. Specifically, the first panel flange 221 abuts against or contacts the first side surface of the support plate 100, the third panel flange 223 abuts against or contacts the third side surface of the support plate 100, the second panel flange 222 is spaced apart from the second side surface 132 of the support plate 100, and the fourth panel flange 224 is spaced apart from the fourth side surface of the support plate 100. For details, please refer to Figure 4 , the second panel flange 222 is arranged opposite to the side surface 130 of the support plate (that is, there is a gap between the second panel flange 222 and a side surface 130 directly facing the support plate), and the end of the second bottom flange 225 away from the second panel flange 222 is close to or abuts against the side surface 130 of the support plate, so that the second bottom flange 225 limits the support plate 100, which is conducive to improving the assembly accuracy of the support plate 100. In addition, when the edge of the writing panel 200 close to the second panel flange 222, or the second panel flange 222, or the second bottom flange 225 is squeezed by an external force toward the support plate 100, the support plate 100 can support the second bottom flange 225, thereby preventing the writing panel 200 from being deformed under the squeezing action.

[0053] Similarly, see Fig. 9 and Fig.11 , the bottom surface flange may also include a fourth bottom surface flange 227 bent from the fourth panel flange 224 toward the direction of the second panel flange 222, so as to prevent the operator from being scratched when contacting the second panel flange 222 and the fourth panel flange 224. Exemplarily, the fourth panel flange 224 and the second panel flange 222 are in a mirror-symmetrical structure, and the fourth bottom surface flange 227 and the second bottom surface flange 225 are in a mirror-symmetrical structure. For example, the fourth panel flange 224 is substantially perpendicular to the writing surface, and the fourth bottom surface flange 227 is substantially perpendicular to the fourth panel flange 224, so that the fourth bottom surface flange 227, the fourth panel flange 224 and the portion of the writing surface 210 close to the fourth panel flange 224 together form a "U"-shaped covering structure, which is conducive to improving the structural strength of the writing screen 1000. At the same time, the sharp edge of the writing panel 200 (that is, the end of the fourth bottom surface flange away from the fourth panel flange 224) can be hidden in the second surface 120 of the support plate 100, and there is no need to perform additional processing on the sharp edge of the writing panel 200, which is conducive to simplifying the preparation process of the writing screen 1000 and reducing the preparation cost.

[0054] Exemplarily, one end of the fourth bottom surface flange 227 away from the fourth panel flange 224 is close to or abuts against the side surface 130 of the support plate. Furthermore, one end of the second bottom surface flange 225 away from the second panel flange 222 and one end of the fourth bottom surface flange 227 away from the fourth panel flange 224 are respectively abutted against two oppositely arranged side surfaces of the support plate (that is, a pair of side surfaces of the support plate that are respectively opposite to the second panel flange 222 and the fourth panel flange 224), which is beneficial to further improve the assembly accuracy of the support plate 100. When the edge of the writing panel 200 is squeezed toward the support plate 100 by external force, the support plate 100 provides support for the second bottom surface flange 225 and the fourth bottom surface flange 227, thereby preventing the writing panel 200 from deforming under the squeezing.

[0055] In some embodiments of this application, please refer to Figure 5 , one end of the bending portion 320 is fixedly connected to the connecting portion 310, and the other end of the bending portion 320 is fixedly connected to the shielding portion 330, and the connecting portion 310, the bending portion 320 and the shielding portion 330 are an integrated structure. Exemplarily, the end of the bending portion 320 away from the connecting portion 310 is bent outwardly (that is, the side of the bending portion 320 away from the supporting plate 100) by 180° to form the shielding portion 330, and the connection between the bending portion 320 and the shielding portion 330 forms an arc transition. This structural setting can increase the strength of the shielding plate 300, which is conducive to increasing the strength of the writing screen 1000. At the same time, the connection between the bending portion 320 and the shielding portion 330 is in the shape of an inverted letter "U", which can make the structure of the shielding plate 300 smoother, and the bending portion 320 and the shielding portion 330 have a double-layer structure on the side 130 of the writing screen 1000, which further improves the edge sealing strength.

[0056] In some embodiments of this application, please refer to Figures 3 to 6The shielding portion 330 is a plate-like structure, and the shielding portion 330 also includes a first end plate 340 and a second end plate 350 extending from both ends in the length direction of the first side surface, the first end plate 340 and the second end plate 350 are arranged opposite to each other, and the first end plate 340 and the second end plate 350 are both located on the side of the shielding plate 300 close to the second surface 120. Exemplarily, the shielding portion 330 is adapted to the width of the writing screen 1000, that is, along the width direction of the writing screen 1000, the size of the shielding portion 330 is the same as or similar to the width of the writing screen 1000, and the shielding portion 330 includes a first end plate 340 and a second end plate 350 arranged opposite to each other along the width direction of the writing screen 1000, and the first end plate 340 and the second end plate 350 are both located on the side of the shielding plate 300 close to the second surface 120. Specifically, the connecting portion 310 is a plate-shaped structure, a first flange 341 is provided on one side of the first end plate 340 close to the second surface 120, a first avoidance opening 311 is provided on one end of the connecting portion 310 close to the first flange 341, the first flange 341 and the connecting portion 310 are located on the same plane and both abut against the second surface 120. Further, a second flange 351 is provided on one side of the second end plate 350 close to the second surface 120, a second avoidance opening is provided on one end of the connecting portion 310 close to the second flange 351, the second flange 351 and the connecting portion 310 are located on the same plane and both abut against the second surface 120, and illustratively, a threaded hole 400 for threaded connection with the second surface 120 is provided on the first flange 341, the second flange 351 and the connecting portion 310. This embodiment enables the first flange 341, the second flange 351 and the connection portion 310 to be fixedly connected to the second surface 120 (for example, by screw locking), thereby increasing the connection area between the shielding plate 300 and the support plate 100, and facilitating the improvement of the connection strength between the shielding plate 300 and the support plate 100. Specifically, the first end plate 340 is a square structure, one side of the first end plate 340 is fixedly connected to the shielding portion 330, and flanges are provided on the other three sides of the first end plate 340, and a flange on the first end plate 340 close to the bending portion 320 is the first flange. The second end plate 350 has the same or similar structure as the first end plate 340.

[0057] In some embodiments of the present application, a third flange 331 is further provided at the end of the shielding portion 330 away from the bending portion, and the third flange 331 and the connecting portion 310 are located on the same side of the shielding portion 330, and the third flange 331 and the connecting portion 310 are arranged opposite to each other. This structural arrangement can increase the contact area between the shielding plate 300 and the mounting structure (such as a wall), while preventing the sharp edge of the shielding plate 300 from scratching the wall.

[0058] In some embodiments of the present application, the support plate 100 is a honeycomb composite plate, which includes a honeycomb body and a resin support structure, wherein the cross-sectional shape of a single honeycomb in the honeycomb body is a hexagonal prism, a quadrangular prism, or a triangular prism; and the resin support structure is filled in the honeycomb. It is understandable that there are hollow honeycombs (i.e., a single honeycomb) arranged in an array in the honeycomb body, resulting in poor rigidity. Placing the honeycomb body in a resin glue so that the resin glue is filled in the hollow honeycomb and hardening the resin glue filled in the hollow honeycomb can significantly increase the strength of the honeycomb body. It should be noted that the cross-sectional shape of a single honeycomb in this embodiment is a hexagonal prism, a quadrangular prism, or a triangular prism, which enables each honeycomb unit to be connected to each other, and can significantly increase the rigidity of the honeycomb composite plate compared to a cylindrical structure with a cross-sectional shape of a single honeycomb. An adhesive layer is coated on the front of the honeycomb composite plate, and the writing panel 200 is fixedly connected to the honeycomb composite plate through the adhesive layer.

[0059] The present application also provides a smart blackboard, which includes a main display screen and the writing screen 1000, wherein the writing screen 1000 is arranged on the side of the main display screen in the horizontal direction. Specifically, the orthographic projection of the main display screen is a square structure, and the third side of the writing screen 1000 is spliced ​​with the main display screen. Because the smart blackboard in the present application includes the above writing screen 1000, it also has the excellent performance of the writing screen 1000 in the present application.

[0060] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the detailed description of other embodiments above, and will not be repeated here.

[0061] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0062] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0063] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0064] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0065] The above is a detailed introduction to a writing screen and a smart blackboard provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A writing screen for a smart blackboard, characterized in that: The writing screen comprises a supporting plate, a writing panel and a shielding plate; The support plate comprises a first surface, a second surface arranged opposite to the first surface, and a side surface connecting the first surface and the second surface, and the writing panel is located on the first surface and is stacked with the support plate; The shielding plate includes a connecting portion, a bending portion and a shielding portion, the bending portion connects the connecting portion and the shielding portion, the connecting portion is arranged on the second surface and connected to the supporting plate, the bending portion is located on the side surface, the shielding portion is located on a side of the bending portion away from the side surface and extends to a side of the second surface away from the first surface, and the shielding portion is used to shield the second surface.

2. The writing screen as claimed in claim 1, characterized in that: The writing panel comprises a writing surface and a panel flange bent toward the side surface, and a portion of the panel flange close to the bending portion abuts against the bending portion.

3. The writing screen as claimed in claim 2, characterized in that: The panel flange covers the side surface.

4. The writing screen as claimed in claim 2, characterized in that: The side surface includes a first side surface, the panel flange includes a first panel flange bent toward the first side surface, the first panel flange is close to the first side surface, the bending portion is located on the side of the first panel flange away from the first side surface and is in contact with the first panel flange, and the shielding portion is used to shield the second surface on one side of the first panel flange.

5. The writing screen as claimed in claim 4, characterized in that: The side also includes a third side arranged opposite to the first side, and the panel flange also includes a third panel flange bent toward the third side, the third panel flange is close to the third side, and one side of the third panel flange is used for splicing with the main display screen of the smart blackboard.

6. The writing screen as claimed in claim 5, characterized in that: The side surface further includes a second side surface and a fourth side surface which are arranged opposite to each other, the second side surface is connected to the first side surface and the third side surface, and the fourth side surface is connected to the first side surface and the third side surface; The panel flange includes a second panel flange bent toward the second side surface and a second bottom flange, the second panel flange is arranged opposite to the second side surface, the second bottom flange is located at an end of the second panel flange away from the writing surface, and the second bottom flange is arranged opposite to the writing surface; And / or, the panel flange includes a fourth panel flange bent toward the fourth side surface and a fourth bottom surface flange, the fourth panel flange is spaced apart from the fourth side surface, the fourth bottom surface flange is located at an end of the fourth panel flange away from the writing surface, and the fourth bottom surface flange is arranged opposite to the writing surface.

7. The writing screen according to any one of claims 1 to 6, characterized in that: One end of the bending portion is connected to the connecting portion, and the other end of the bending portion is connected to the shielding portion. The connecting portion, the bending portion and the shielding portion are an integrated bending structure.

8. The writing screen as claimed in claim 4, characterized in that: The shielding portion is a plate-like structure, and also includes a first end plate and a second end plate extending from both ends along the length direction of the first side surface. The first end plate and the second end plate are arranged opposite to each other, and the first end plate and the second end plate are both located on the side of the shielding plate close to the second surface.

9. The writing screen according to claim 8, characterized in that: The connecting portion is in a plate-like structure, a first flange is provided on one side of the first end plate close to the second surface, a first avoidance is provided on one end of the connecting portion close to the first flange, and the first flange and the connecting portion are located on the same plane and both abut against the second surface; And / or, the connecting portion is a plate-like structure, a second flange is provided on the side of the second end plate close to the second surface, a second avoidance opening is provided on the end of the connecting portion close to the second flange, and the second flange and the connecting portion are located on the same plane and both abut against the second surface.

10. The writing screen according to claim 4, characterized in that: A third flange is further provided at one end of the shielding portion away from the bending portion, and the third flange and the connecting portion are located on the same side of the shielding portion and are arranged opposite to each other.

11. A smart blackboard, characterized in that: The smart blackboard includes a main display screen and a writing screen as described in any one of claims 1 to 10, and the writing screen is arranged on the side of the main display screen in the horizontal direction.

Images