Intelligent blackboard
By using limit slots and positioning slots in the smart blackboard with buckles and hooks to lock, the problems of insufficient splicing stability and cumbersome assembly process in the prior art are solved, and higher stability and lower Cost, simplifies the assembly process.
Patent Information
- Application Number
- CN202420600323.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-26
AI Technical Summary
The existing smart blackboards have problems such as insufficient stability, cumbersome assembly process and high cost when splicing, especially the hook fixing method and integrated frame fixing method, and the sheet metal bridge connection method are complicated.
The limiting groove and positioning groove between the display main screen and the writing sub-board are used to combine buckles and hook locking to reduce the number of accessories and use a frame instead of traditional hangers and hooks to simplify the assembly process.
It improves the stability of the writing sub-board and the main screen, reduces the number of accessories, reduces production costs, simplifies the assembly process, avoids uneven breakages, and has a neat and beautiful structure.
Smart Images

Figure CN222281403U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of intelligent electronic equipment structures, in particular to a smart blackboard. Background Art
[0002] At present, with the popularization of smart campuses, smart blackboards are also being used in more scenarios. Usually, a smart blackboard consists of a main screen and a sub-board. The sub-board is connected and fixed to the main screen through a splicing structure. The main function of the main screen is to demonstrate teaching content and provide human-computer interaction to realize a smart classroom, while the sub-board provides a traditional chalk writing experience to improve usage effect and teaching efficiency.
[0003] There are several ways to splice the smart blackboard:
[0004] 1. Use hooks to fix the sub-panel on the wall, and use buckles to connect the sub-panel to the main screen. However, this splicing method requires the hooks to be fixed on the back of the sub-panel in advance. This method has high requirements for the positioning of the hooks, and the vertical stability is insufficient, which is prone to top break. A bracket for fixing the hooks needs to be fixed on the wall. The overall assembly process is cumbersome and costly.
[0005] 2. Use an integrated frame for fixing. This method is relatively strong and reliable, but the outer frame is large, costly and unsightly; the main screen and the outer frame also need to be fixed on the wall in advance, and the assembly process is cumbersome.
[0006] 3. Use sheet metal to bridge the connection. This method requires first fixing the bracket to the wall, hanging the sub-panel on the wall, manually placing the sub-panel and the main screen close together, and then locking the two together with sheet metal. This solution is similar to the first solution, and also requires fixing many sheet metal hooks and brackets in advance. The final sheet metal bridge locking process is more complicated. Utility Model Content
[0007] The purpose of the utility model is to provide a smart blackboard to solve the problems of existing smart blackboards that, when spliced, hooks are used to fix the sub-boards on the wall, and the sub-boards are connected to the main screen with buckles. This splicing method has the disadvantages of insufficient stability, complicated assembly process, and high cost; an integrated frame is used for fixing, and this splicing method has the disadvantages of high cost, unsightly appearance, and complicated assembly process; sheet metal bridging is used for connection, and this splicing method has the technical problem of even more complicated process.
[0008] The utility model provides a smart blackboard, comprising:
[0009] The display main screen includes an interactive screen body and a frame fixed on the interactive screen, wherein the frame has two limit slots and two positioning slots disposed opposite to each other;
[0010] Two writing sub-boards, the writing sub-boards comprising a writing board, a first positioning block and a second positioning block, the interactive screen body is located between the two writing boards, the first positioning block and the second positioning block are both fixed to one side end of the writing board, and the first positioning block is inserted into the corresponding limiting groove, and the second positioning block is inserted into the corresponding positioning groove;
[0011] At least two locking components, the locking components include buckles and hooks, each writing sub-board is installed with at least one buckle, each hook is installed on the frame, and the buckle is snap-connected with the hook.
[0012] Furthermore, the number of the locking components is four, and the four buckles are respectively installed on the two first positioning blocks and the two second positioning blocks, the first positioning block includes a first block body and a first plug block protruding from one side end of the first block body, the first block body is installed on the back of the writing board, the first block body is installed with the corresponding buckles, the limiting groove includes a first embedding groove, and the first plug block is inserted into the corresponding first embedding groove.
[0013] Furthermore, the first positioning block also includes a first plug plate protruding from the first block and arranged side by side with the first plug block, the first plug plate is located below the first plug block, the limiting groove also includes a second embedding groove spaced apart from the first embedding groove, and the first plug plate is inserted into the corresponding second embedding groove.
[0014] Furthermore, the second positioning block includes a second block body and a second plug block protruding from one side end of the second block body, the second block body is installed on the back of the writing board and is located below the first block body, the second block body is installed with the corresponding buckle, the width of the second plug block is greater than the width of the first plug block, and the second plug block is inserted into the corresponding positioning groove.
[0015] Further, the two first embedding grooves are connected; and / or,
[0016] The two positioning grooves are connected.
[0017] Furthermore, the writing sub-board also includes a plurality of positioning plates, wherein the positioning plates are located between the first positioning block and the second positioning block, wherein the positioning plates include a connecting plate and a second plug-in plate protruding from one side end of the connecting plate, wherein the connecting plate is installed on the back of the writing board, and the second embedding groove is a long strip structure, and each of the second plug-in plates is respectively inserted into the corresponding second embedding groove.
[0018] Furthermore, the writing sub-board also includes a baffle fixed to the back of the writing board and two brackets for connecting to the wall, the baffle includes a first side panel and two oppositely arranged second side panels, the first side panel is fixed to one end of the writing board away from the interactive screen, the two second side panels are respectively connected to the two ends of the first side panel, and the two brackets are respectively adjustably mounted on the two second side panels.
[0019] Furthermore, the writing sub-board also includes at least two first fasteners, the bracket includes a first support plate and a second support plate for connecting to the wall, the second support plate is vertically connected to one end of the first support plate, the first support plate is provided with at least one first strip hole along the thickness direction of the writing board, the second side plate is provided with at least one first threaded hole, the first fastener passes through the corresponding first strip hole and is connected to the corresponding first threaded hole, and the second support plate is provided with a second strip hole along the length direction of the interactive screen.
[0020] Furthermore, the writing sub-board also includes at least two second fasteners, the first support plate is also provided with a plurality of through holes along the thickness direction of the writing board, the second side plate is also provided with at least one second threaded hole, and the second fastener passes through the corresponding through hole and is connected to the corresponding second threaded hole.
[0021] Furthermore, the main display screen also includes at least two hooks, and the two hooks are respectively fixed to the upper and lower ends of the frame.
[0022] Compared with the prior art, the beneficial effects of the present invention are:
[0023] The utility model fixes a first positioning block and a second positioning block on one side end of the writing board, the first positioning block and the second positioning block are respectively inserted into the limit groove and the positioning groove of the frame in the display main screen, and then adopts the locking method of buckles and hooks, the overall stability of the connection between the display main screen and the writing sub-board is strong, and it is not easy to produce serious discontinuity and unevenness, and only the frame is used outside the interactive screen body, so that the inlay cooperation of the first positioning block, the second positioning block and the frame replaces the traditional hanger and hook to support the writing sub-board, reducing the number of accessories used in the connection between the interactive screen body and the writing board, simplifying the assembly process of the smart blackboard, and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 A schematic diagram of the structure of the smart blackboard provided in the embodiment of the utility model Figure 1 ;
[0025] Figure 2 A schematic diagram of the structure of the smart blackboard provided in the embodiment of the utility model Figure 2 ;
[0026] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;
[0027] Figure 4 for Figure 2 A partial enlarged schematic diagram of point B in the middle;
[0028] Figure 5 for Figure 2 A partial enlarged schematic diagram of point C in the middle;
[0029] Figure 6 A cross-sectional view of a smart blackboard provided by an embodiment of the utility model;
[0030] Figure 7 for Figure 6 A partial enlarged schematic diagram of point D in the middle;
[0031] Figure 8 for Figure 6 A partial enlarged schematic diagram of point E in the middle;
[0032] Fig. 9 A schematic diagram of the structure of a writing sub-board provided by an embodiment of the utility model;
[0033] Fig.10 for Fig. 9 A partial enlarged schematic diagram of point F in the middle;
[0034] Fig.11 for Fig. 9 A partial enlarged schematic diagram of the G in the middle;
[0035] Fig.12 A schematic diagram of the structure of the lock assembly in the smart blackboard provided by the embodiment of the utility model when it is opened;
[0036] Fig.13 for Fig.12 A partial enlarged schematic diagram of the H in the middle;
[0037] Fig.14 for Fig.12 A local enlarged schematic diagram of point I in the middle.
[0038] In the figure:
[0039] 10. Display main screen; 11. Interactive screen; 12. Frame; 121. Limiting slot; 1211. First embedding slot; 1212. Second embedding slot; 122. Positioning slot; 13. First cavity; 14. Second cavity; 20. Writing sub-board; 21. Writing board; 22. First positioning block; 221. First block; 222. First plug-in block; 223. First plug-in board; 23. Second positioning block; 231. Second block; 232. The second plug block; 24, the positioning plate; 241, the connecting plate; 242, the second plug plate; 25, the baffle plate; 251, the first side plate; 252, the second side plate; 2521, the first threaded hole; 2522, the second threaded hole; 26, the bracket; 261, the first support plate; 2611, the first strip hole; 2612, the through hole; 262, the second support plate; 2621, the second strip hole; 30, the locking assembly; 31, the buckle; 32, the hook. DETAILED DESCRIPTION
[0040] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.
[0041] See also Figures 1 to 8 As shown, the embodiment of the utility model discloses a smart blackboard. In addition to being applicable to the field of smart blackboards, the technical solution can also be used in other fields such as televisions, smart all-in-one machines, and spliced screens. The smart blackboard includes a display main screen 10, two writing sub-boards 20, and at least two locking components 30, wherein one writing sub-board 20 is installed on one side end of the display main screen 10 through a part of the locking component 30, and the other writing sub-board 20 is installed on the other side end of the display main screen 10 through another part of the locking component 30.
[0042] The display main screen 10 includes an interactive screen body 11 and a frame 12 fixed on the interactive screen. The frame 12 is annular. The interactive screen body 11 is fixed inside the frame 12. The frame 12 has two limit grooves 121 arranged opposite to each other and two positioning grooves 122 arranged opposite to each other. The two limit grooves 121 are respectively located on both sides of the upper end of the frame 12, and the two positioning grooves 122 are respectively located on both sides of the lower end of the frame 12, and the positioning groove 122 is located below the limit groove 121.
[0043] The writing sub-board 20 includes a writing board 21, a first positioning block 22 and a second positioning block 23. The interactive screen 11 is located between the two writing boards 21. The first positioning block 22 and the second positioning block 23 are both fixed to one side of the writing board 21. The first positioning block 22 is located above the second positioning block 23. The structures of the first positioning block 22 and the second positioning block 23 can be the same or different. The two writing boards 21 are respectively abutted against the two side ends of the frame 12, and the first positioning block 22 is inserted into the corresponding limiting groove 121, and the second positioning block 23 is inserted into the corresponding positioning groove 122. The locking assembly 30 includes a buckle 31 and a hook 32. Each writing sub-board At least one buckle 31 is installed on 20, and each hook 32 is installed on the frame 12. The buckle 31 is snap-connected with the hook 32, so that the two writing sub-boards 20 are respectively fixed on the two ends of the display main screen 10. The overall stability of the connection between the display main screen 10 and the writing sub-board 20 is strong, and it is not easy to produce serious unevenness. Only the frame 12 is used outside the interactive screen body 11, so that the inlay cooperation of the first positioning block 22, the second positioning block 23 and the frame 12 replaces the traditional hooks and hangers to support the writing sub-board 20, reducing the number of accessories used in the connection between the interactive screen body 11 and the writing board 21, and simplifying the assembly process of the smart blackboard.
[0044] It should be noted that the number of locking components 30 can be two, three or four, but it is necessary to ensure that at least one buckle 31 is installed on each writing sub-board 20. In the present embodiment, the number of locking components 30 is four, and the four buckles 31 are respectively installed on the two first positioning blocks 22 and the two second positioning blocks 23, and the four hooks 32 are all installed on the frame 12. The buckles 31 are snap-connected with the hooks 32 to enhance the overall stability of the connection between the display main screen 10 and the writing sub-board 20.
[0045] Please read further Figures 5 to 11 As shown, in this embodiment, the structures of the first positioning block 22 and the second positioning block 23 are different. The first positioning block 22 includes a first block body 221 and a first plug block 222 protruding from one side end of the first block body 221. The first block body 221 is installed on the back of the writing board 21. The first block body 221 is provided with a corresponding buckle 31. The limiting groove 121 includes a first laterally arranged embedding groove 1211. The first plug block 222 is inserted into the corresponding first embedding groove 1211 to fix the upper end of one side of the writing sub-board 20 to the display main screen 10.
[0046] The first positioning block 22 also includes a first plug plate 223 protruding from the first block 221 and arranged side by side with the first plug block 222. The first plug plate 223 is located below the first plug block 222. The limiting groove 121 also includes a second embedding groove 1212 spaced apart from the first embedding groove 1211. The first plug plate 223 is inserted into the corresponding second embedding groove 1212 to support the upper end of one side of the writing sub-board 20 to prevent the writing sub-board 20 from collapsing at this position when writing.
[0047] The second positioning block 23 includes a second block body 231 and a second plug block 232 protruding from one side end of the second block body 231. The second block body 231 is installed on the back of the writing board 21 and is located below the first block body 221. The second block body 231 is installed with a corresponding buckle 31. The width of the second plug block 232 is greater than the width of the first plug block 222. The second plug block 232 is inserted into the corresponding positioning groove 122 to fix the lower end of one side of the writing sub-board 20 to the display main screen 10, thereby enhancing the overall stability of the connection between the display main screen 10 and the writing sub-board 20, and is not prone to serious discontinuity.
[0048] In some embodiments, the two first embedding grooves 1211 are connected, and the two positioning grooves 122 are connected. The upper and lower ends of the frame 12 are respectively penetrated by a first cavity 13 and a second cavity 14. The inner diameter of the first cavity 13 is smaller than the inner diameter of the second cavity 14. The two ends of the first cavity 13 are the two first embedding grooves 1211, and the two ends of the second cavity 14 are the two positioning grooves 122. The first positioning block 22 and the limiting groove 121, as well as the second positioning block 23 and the positioning groove 122 are regarded as an inlay-type connection method based on a mortise and tenon structure. During installation, the first positioning block 22 and the second positioning block 23 are respectively embedded in the first cavity 13 and the second cavity 14 of the frame 12, and then the buckle 31 is used to tighten the hook 32 to replace the traditional hook and hanger to support the writing sub-board 20.
[0049] The writing sub-board 20 also includes a plurality of positioning plates 24, which are located between the first positioning block 22 and the second positioning block 23. The positioning plates 24 include a connecting plate 241 and a second plug plate 242 protruding from one side end of the connecting plate 241. The connecting plate 241 is installed on the back of the writing board 21, and one of the positioning plates 24 is arranged close to the second positioning block 23. The second embedding groove 1212 is a long strip structure, and each second plug plate 242 is respectively inserted into the corresponding second embedding groove 1212 to support the lower end and the middle position of one side of the writing sub-board 20 to prevent the writing sub-board 20 from collapsing at this position when writing.
[0050] Please read further Figure 2 , Figure 3 , Figure 12 to Figure 14In this embodiment, the writing sub-board 20 also includes a baffle 25 fixed to the back of the writing board 21 and two brackets 26 both used to connect to the wall. The baffle 25 is a "U"-shaped structure. The baffle 25 includes a first side panel 251 and two oppositely arranged second side panels 252. The first side panel 251 is fixed to the end of the writing board 21 away from the interactive screen 11. The two second side panels 252 are respectively vertically connected to the two ends of the first side panel 251. The two brackets 26 are respectively adjustably installed on the two second side panels 252 to facilitate adjusting the position of the writing board 21 relative to the wall.
[0051] The writing sub-board 20 also includes at least two first fasteners. The bracket 26 includes a first support plate 261 and a second support plate 262 for connecting to the wall. The second support plate 262 is vertically connected to one end of the first support plate 261. The bracket 26 is an "L"-shaped structure. The first support plate 261 is provided with at least one first strip hole 2611 along the thickness direction of the writing board 21. The second side plate 252 is provided with at least one first threaded hole 2521. The first fastener passes through the corresponding first strip hole 2611 and is connected to the corresponding first threaded hole 2521 to facilitate adjustment of the longitudinal distance between the writing board 21 and the wall. The first fastener can be a screw. The second support plate 262 is provided with a second strip hole 2621 along the length direction of the interactive screen body 11. A rubber plug is pre-installed on the wall. The second strip hole 2621 can be used for self-tapping screws to penetrate and fix it on the wall for use, so as to facilitate adjustment of the horizontal distance between the writing board 21 and the wall.
[0052] The writing sub-board 20 also includes at least two second fasteners. The first support plate 261 is also provided with a plurality of through holes 2612 along the thickness direction of the writing board 21. The second side plate 252 is also provided with at least one second threaded hole 2522. The second threaded hole 2522 is arranged side by side with the first threaded hole 2521. The second fastener passes through the corresponding through hole 2612 and is connected with the corresponding second threaded hole 2522 to assist in adjustment. The second fastener may be a screw.
[0053] The display main screen 10 also includes at least two hooks, which are respectively fixed to the upper and lower ends of the back of the frame 12. The display main screen 10 can be connected to the crossbeam of the wall through the two hooks to fix the display main screen 10 on the wall, while the writing sub-board 20 does not need hooks and crossbeams for fixing.
[0054] In this embodiment, by designing the first positioning block 22 and the second positioning block 23 to have the characteristics of the tenon in the mortise and tenon structure, the frame 12 in the display main screen 10 is used as the tenon, and the first positioning block 22 and the second positioning block 23 are fixed to the writing board 21, and then respectively inserted into the limit groove 121 and the positioning groove 122 of the frame 12, so as to replace the hanger and hook used for fixing the smart blackboard in the past, and save the number of hangers and hooks. At the same time, the frame 12 is an extruded aluminum mold product, and the error between the first cavity 13 and the second cavity 14 of the mold product is relatively low. The two ends of the first cavity 13 are the two first embedding grooves 1211, and the two ends of the second cavity 14 are the two positioning grooves 122. The controllable accuracy is relatively high, and a relatively high strength is retained. The first positioning block 22 and the second positioning block 23 are both die-castings, which have the advantages of high precision standards, high mechanical properties and high durability. When both have high precision and high strength, they are inlaid with mortise and tenon structures to achieve high stability and reliability and maintain low errors. This advantage can meet the safety performance requirements of the smart blackboard in schools and avoid serious unevenness on the front and top.
[0055] The assembly method of the smart blackboard includes the following steps:
[0056] S101, assembling the writing sub-board 20, firstly installing the first positioning block 22 and the second positioning block 23 on the inner corners of the back of the writing board 21, aligning the edges when fixing, positioning and locking the first positioning block 22 and the second positioning block 23, and then locking the four buckles 31 on the two first positioning blocks 22 and the two second positioning blocks 23 respectively;
[0057] The four brackets 26 are respectively locked to the upper and lower sides of the two baffles 25, and the baffles 25 are respectively locked to the outer sides of the backs of the two writing boards 21, and then locked to the wall to support the writing sub-board 20. After completing the above steps, the writing sub-board 20 is partially assembled.
[0058] S102, assembling the display main screen 10, fixing the interactive screen body 11 in the annular frame 12, and then fixing two hooks to the upper and lower ends of the frame 12 respectively;
[0059] S103, fixing the main display screen 10, installing two beams on the wall, and hanging the main display screen 10 on the beams through the hooks thereon;
[0060] S104, fix two writing sub-boards 20, bring one of the writing sub-boards 20 close to the interactive screen 11 in parallel, insert the first positioning block 22 and the second positioning block 23 on the writing sub-board 20 into the limit groove 121 and the positioning groove 122 on one side of the frame 12 respectively, fix the other writing sub-board 20 on the other side of the frame 12 in the same way, fasten and fix each buckle 31 with the corresponding hook 32, and use a self-tapping screw to pass through the second strip hole 2621 on the bracket 26 to fix each writing sub-board 20 to the wall. In the smart blackboard industry, the connection structure between this writing sub-board 20 and the display main screen 10 can eliminate many fixings such as hangers and hooks that were previously needed, while reducing the material of the fixings of the writing sub-board 20, and achieving the effect of simplifying the assembly process. This structure is better than the previous splicing structure.
[0061] The structure of the smart blackboard has the following beneficial effects:
[0062] 1. The number of accessories used in the connection method of the display main screen 10 and the writing sub-board 20 in the smart blackboard is reduced;
[0063] 2. Simplify the installation process of the smart blackboard;
[0064] 3. The overall stability of the connection between the display main screen 10 and the writing sub-board 20 is relatively high;
[0065] 4. The front and top of the smart blackboard are not prone to serious unevenness;
[0066] 5. The buckle 31 cooperates with the positioning block back lock to make the whole more neat and beautiful.
[0067] In summary, the utility model fixes a first positioning block 22 and a second positioning block 23 on one side end of the writing board 21, and the first positioning block 22 and the second positioning block 23 are respectively inserted into the limit groove 121 and the positioning groove 122 of the frame 12 in the display main screen 10, and then the locking method of the buckle 31 and the hook 32 is adopted, so that the overall stability of the connection between the display main screen 10 and the writing sub-board 20 is strong, and it is not easy to produce serious discontinuity and unevenness, and only the frame 12 is used outside the interactive screen body 11, so that the inlay cooperation of the first positioning block 22, the second positioning block 23 and the frame 12 replaces the traditional hanger and hook to support the writing sub-board 20, reducing the number of accessories used in the connection between the interactive screen body 11 and the writing board 21, simplifying the assembly process of the smart blackboard, and reducing the production cost.
[0068] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.
Claims
1. A smart blackboard, characterized in that: include: The display main screen includes an interactive screen body and a frame fixed on the interactive screen, wherein the frame has two limit slots disposed opposite to each other and two positioning slots disposed opposite to each other; Two writing sub-boards, the writing sub-boards comprising a writing board, a first positioning block and a second positioning block, the interactive screen body is located between the two writing boards, the first positioning block and the second positioning block are both fixed to one side end of the writing board, and the first positioning block is inserted into the corresponding limiting groove, and the second positioning block is inserted into the corresponding positioning groove; At least two locking components, the locking components include buckles and hooks, each writing sub-board is installed with at least one buckle, each hook is installed on the frame, and the buckle is snap-connected with the hook.
2. The smart blackboard according to claim 1, characterized in that: The number of the locking components is four, and the four buckles are respectively installed on the two first positioning blocks and the two second positioning blocks. The first positioning block includes a first block body and a first plug block protruding from one side end of the first block body. The first block body is installed on the back of the writing board, and the corresponding buckles are installed on the first block body. The limiting groove includes a first embedding groove, and the first plug block is inserted into the corresponding first embedding groove.
3. The smart blackboard according to claim 2, characterized in that: The first positioning block also includes a first plug plate protruding from the first block and arranged side by side with the first plug block, the first plug plate is located below the first plug block, the limiting groove also includes a second embedding groove spaced apart from the first embedding groove, and the first plug plate is inserted into the corresponding second embedding groove.
4. The smart blackboard according to claim 2, characterized in that: The second positioning block includes a second block body and a second plug block protruding from one side end of the second block body. The second block body is installed on the back of the writing board and is located below the first block body. The corresponding buckle is installed on the second block body. The width of the second plug block is greater than that of the first plug block. The second plug block is inserted into the corresponding positioning groove.
5. The smart blackboard according to claim 2, characterized in that: The two first embedding grooves are connected; and / or, The two positioning grooves are communicated with each other.
6. The smart blackboard according to claim 3, characterized in that: The writing sub-board also includes a plurality of positioning plates, wherein the positioning plates are located between the first positioning block and the second positioning block, and the positioning plates include a connecting plate and a second plugging plate protruding from one side end of the connecting plate, and the connecting plate is installed on the back of the writing board, and the second embedding groove is a long strip structure, and each of the second plugging plates is respectively inserted into the corresponding second embedding groove.
7. The smart blackboard according to claim 1, characterized in that: The writing sub-board also includes a baffle fixed to the back of the writing board and two brackets each for connecting to a wall, the baffle including a first side panel and two oppositely arranged second side panels, the first side panel being fixed to an end of the writing board away from the interactive screen, the two second side panels being respectively connected to both ends of the first side panel, and the two brackets being respectively adjustably mounted on the two second side panels.
8. The smart blackboard according to claim 7, characterized in that: The writing sub-board also includes at least two first fasteners, the bracket includes a first support plate and a second support plate for connecting to the wall, the second support plate is vertically connected to one end of the first support plate, the first support plate is provided with at least one first strip hole along the thickness direction of the writing board, the second side plate is provided with at least one first threaded hole, the first fastener passes through the corresponding first strip hole and is connected to the corresponding first threaded hole, and the second support plate is provided with a second strip hole along the length direction of the interactive screen.
9. The smart blackboard according to claim 8, characterized in that: The writing sub-board also includes at least two second fasteners. The first support plate is also provided with a plurality of through holes along the thickness direction of the writing board. The second side plate is also provided with at least one second threaded hole. The second fastener passes through the corresponding through hole and is connected with the corresponding second threaded hole.
10. The smart blackboard according to claim 1, characterized in that: The display main screen also includes at least two hooks, and the two hooks are respectively fixed to the upper and lower ends of the frame.
