Teaching multimedia blackboard convenient to fold

Abstract

The utility model relates to the technical field of teaching equipment, in particular to a teaching multimedia blackboard convenient to fold. The teaching multimedia blackboard convenient to fold comprises a multimedia blackboard body and two writing blackboard bodies, a protective shell is arranged on the edge of the outer side of the multimedia blackboard body, rotating grooves are formed in the two sides of the protective shell, and corresponding embedding blocks are arranged at the positions, located at the rotating grooves, of the writing blackboard bodies. A rotating shaft is arranged on the embedding block in the rotating groove; the two sides of the bottom of the protective shell are slidably connected with a bottom supporting plate of a U-shaped structure, and the width, located on the inner side of the U-shaped structure, of the bottom supporting plate is the same as the thickness obtained after the protective shell and the two writing blackboards are added.

Description

Technical Field

[0001] This utility model relates to the field of teaching equipment technology, specifically to a foldable multimedia blackboard for teaching. Background Technology

[0002] Multimedia blackboards are a commonly used device in modern teaching. They combine traditional blackboards with multimedia technology, displaying electronic content such as PowerPoint presentations and videos, greatly enriching teaching methods and content. The role of multimedia blackboards is to improve teaching efficiency and enhance students' participation and comprehension.

[0003] However, most existing multimedia blackboards are fixed to the wall and equipped with a writing board for auxiliary writing. These are generally expensive, cannot be moved, and incur significant costs. Adjusting classroom layouts or changing teaching locations often requires considerable manpower and time. Furthermore, most multimedia blackboards rely on a sliding writing board for external protection; when both are used simultaneously, the writing board area is halved, impacting writing space and reducing display quality. Therefore, there is an urgent need for a multimedia blackboard that is easy to fold, move, and store to address the shortcomings of existing technology and improve the practicality and convenience of teaching equipment. Utility Model Content

[0004] The purpose of this invention is to provide a foldable multimedia blackboard for teaching, in order to solve the problems in the prior art where multimedia blackboards are not easy to move and the writing blackboard area is halved when multimedia blackboards and writing blackboards are used at the same time, affecting the writing space.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is a foldable multimedia blackboard for teaching, including a multimedia blackboard and two writing blackboards. The outer edge of the multimedia blackboard is provided with a protective shell, and the two sides of the protective shell are provided with rotating grooves. The writing blackboard is provided with a corresponding fitting block at the rotating groove, and the fitting block is provided with a rotating shaft at the rotating groove.

[0006] The bottom of the protective housing is slidably connected to the bottom two sides of a U-shaped bottom support plate. The bottom support plate is located on the inner side of the U-shaped structure and its width is the same as the combined thickness of the protective housing and the two writing blackboards.

[0007] As a preferred embodiment of this utility model, the height of the writing blackboard is the same as the height of the protective shell, and the length of the writing blackboard is less than the length of the protective shell. The upper and lower ends of the writing blackboard away from the interlocking block are provided with handles.

[0008] As a preferred embodiment of this utility model, the protective shell is made of metal, and multiple heat dissipation vents are provided on the back of the protective shell, and mounting plates are provided on both rear sides of the protective shell.

[0009] As a preferred technical solution of this utility model, the rotating groove is provided with a corresponding extension frame at the rear of the protective shell, and the rotating groove is a semi-circular groove structure. At the same time, the depth of the rotating groove matches the thickness of the interlocking block, and the depth of the rotating groove is the same as the thickness of the two writing blackboards superimposed. The rotating shaft passes through and connects to the limiting plate, and the rotating shaft is rotatably connected to the extension frame.

[0010] As a preferred technical solution of this utility model, a U-shaped limiting block with the same depth as the rotating groove is inserted between the limiting plate and the extension frame at the rotating shaft, and a placement rack matching the shape of the limiting block is provided on one side of the extension frame behind the protective shell.

[0011] As a preferred technical solution of this utility model, the bottom support plate is provided with a guide groove at the rear of the protective shell to position and limit the movement of the bottom support plate. The bottom support plate is located at a lower height on the side of the U-shaped structure closer to the writing blackboard. Multiple reinforcing ribs perpendicular to the long side of the bottom support plate are provided below the bottom support plate.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] This foldable multimedia blackboard for teaching uses a rotating writing board and a sliding bottom support, enabling quick folding and unfolding. This facilitates movement and storage, and the folding and unfolding mechanism allows for simultaneous use of the multimedia blackboard and the writing board without affecting the writing space. This not only saves classroom space but also improves the flexibility and practicality of teaching equipment. Attached Figure Description

[0014] Figure 1 This utility model relates to a foldable multimedia blackboard structure for teaching. Figure 1 .

[0015] Figure 2 This utility model relates to a foldable multimedia blackboard structure for teaching. Figure 2 .

[0016] Figure 3 This is a structural diagram of the rotating groove of a foldable multimedia blackboard for teaching according to this utility model.

[0017] Figure 4 This is a structural diagram of the bottom support plate of a foldable multimedia blackboard for teaching, according to this utility model.

[0018] Figure 5 This is a diagram showing the unfolded structure of a foldable multimedia blackboard for teaching according to this utility model.

[0019] As shown in the figure:

[0020] 1. Multimedia blackboard; 2. Writing blackboard; 3. Protective shell; 4. Rotating groove; 5. Fitting block; 6. Rotating shaft; 7. Bottom support plate; 8. Handle; 9. Heat dissipation vent; 10. Mounting plate; 11. Extension rack; 12. Limiting plate; 13. Limiting block; 14. Placement rack; 15. Guide slide; 16. Reinforcing rib. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1:

[0024] As per the instruction manual Figure 1-2 As shown in Figure 5, a foldable multimedia blackboard for teaching includes a multimedia blackboard 1 and two writing blackboards 2. The outer edge of the multimedia blackboard 1 is provided with a protective shell 3, which is made of metal. The back of the protective shell 3 is provided with multiple heat dissipation vents 9. Mounting plates 10 are provided on both sides of the rear of the protective shell 3. The height of the writing blackboard 2 is the same as the height of the protective shell 3, and the length of the writing blackboard 2 is less than the length of the protective shell 3. Rotating grooves 4 are provided on both sides of the protective shell 3. The writing blackboard 2 is provided with corresponding fitting blocks 5 at the rotating grooves 4, and the fitting blocks 5 are provided with rotating shafts 6 at the rotating grooves 4. The upper and lower ends of the writing blackboard 2 away from the fitting blocks 5 are provided with handles 8.

[0025] As per the instruction manual Figure 3As shown, the rotating groove 4 is located behind the protective shell 3 and a corresponding extension frame 11 is provided. The rotating groove 4 is a semi-circular groove structure. The depth of the rotating groove 4 matches the thickness of the interlocking block 5. The depth of the rotating groove 4 is the same as the thickness of the two writing blackboards 2 combined. The rotating shaft 6 passes through and connects to the limiting plate 12. The rotating shaft 6 is rotatably connected to the extension frame 11. A U-shaped limiting block 13 with the same depth as the rotating groove 4 is inserted between the limiting plate 12 and the extension frame 11 at the rotating shaft 6. A placement rack 14 matching the shape of the limiting block 13 is provided on one side of the extension frame 11 behind the protective shell 3.

[0026] As per the instruction manual Figure 4 As shown, a U-shaped bottom support plate 7 is slidably connected to both sides of the bottom of the protective shell 3. The width of the bottom support plate 7 inside the U-shaped structure is the same as the combined thickness of the protective shell 3 and the two writing blackboards 2. A guide groove 15 is provided behind the protective shell 3 to position and limit the movement of the bottom support plate 7. The bottom support plate 7 is lower on the side of the U-shaped structure closer to the writing blackboard 2. Multiple reinforcing ribs 16 perpendicular to the long side of the bottom support plate 7 are provided below the bottom support plate 7.

[0027] In specific implementation, the writing blackboard 2 is rotated and unfolded within the rotating groove 4 via the rotating shaft 6, and the bottom support plate 7 is pulled out to support the bottom of the writing blackboard 2. Simultaneously, after rotation, the writing blackboard 2 is pushed, causing the fitting block 5 of the writing blackboard 2 to enter the rotating groove 4, and the limiting block 13 is inserted into the rotating shaft 6, making the outer end face of the writing blackboard 2 flush with the outer end face of the multimedia blackboard 1, thus allowing it to be used side-by-side with the multimedia blackboard 1. At the same time, the bottom support plate 7 can be used as a chalk holder (e.g., ...). Figure 5 );

[0028] When not in use, rotate and fold the writing blackboard 2 to the front of the multimedia blackboard 1 in the reverse order of the above steps. The entire blackboard structure is folded compactly through the sliding connection of the bottom tray 7, making it easy to move and store. The design of the protective shell 3 protects the multimedia blackboard 1 and extends its service life.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A multimedia blackboard for teaching, which is easy to fold, comprising a multimedia blackboard (1) and two writing blackboards (2), characterized in that: The outer side edge of the multimedia blackboard (1) is provided with a protective shell (3), both sides of the protective shell (3) are provided with rotating grooves (4), the writing blackboard (2) is provided with a corresponding fitting block (5) at the rotating groove (4), and the fitting block (5) is provided with a rotating shaft (6) at the rotating groove (4). The bottom of the protective shell (3) is slidably connected with a U-shaped bottom supporting plate (7), and the inner side width of the U-shaped structure is the same as the thickness of the protective shell (3) and the two writing blackboards (2).

2. A multi-media blackboard for teaching purposes, as claimed in claim 1, wherein: The height of the writing blackboard (2) is the same as the height of the protective shell (3), and the length of the writing blackboard (2) is less than the length of the protective shell (3), and the upper and lower ends of the writing blackboard (2) away from the fitting block (5) are provided with handles (8).

3. The multi-media blackboard for teaching purposes of easy folding as claimed in claim 1 wherein: The protective shell (3) is made of metal, and the back of the protective shell (3) is provided with a plurality of heat dissipation openings (9), and the back of the protective shell (3) is provided with a mounting plate (10).

4. The multi-media blackboard of claim 1, wherein: The rotating groove (4) located at the back of the protective shell (3) is provided with a corresponding extension rack (11), and the rotating groove (4) is a semicircular groove structure, and the depth of the rotating groove (4) matches the thickness of the fitting block (5), the depth of the rotating groove (4) is the same as the thickness of the two writing blackboards (2) after being overlapped, the rotating shaft (6) passes through a limiting plate (12), and the rotating shaft (6) is rotatably connected with the extension rack (11).

5. The multi-media blackboard for teaching purposes of easy folding as claimed in claim 4 wherein: The limiting plate (12) and the extension rack (11) are inserted with a U-shaped limiting block (13) with the same depth as the rotating groove (4) at the rotating shaft (6), and one side of the extension rack (11) located at the back of the protective shell (3) is provided with a placing rack (14) matched with the shape of the limiting block (13).

6. The multi-media blackboard of claim 1, wherein: The bottom supporting plate (7) located at the back of the protective shell (3) is provided with a guide sliding groove (15) for positioning and limiting the movement of the bottom supporting plate (7), and the height of the bottom supporting plate (7) located at the side of the U-shaped structure close to the writing blackboard (2) is lower, and a plurality of reinforcing ribs (16) perpendicular to the long side of the bottom supporting plate (7) are arranged below the bottom supporting plate (7).

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