A multifunctional teaching device based on digital media technology

Abstract

This utility model relates to the field of multimedia teaching equipment technology, specifically a multifunctional teaching device based on digital media technology, including a first shell, a second shell, a first ion fan, and a second ion fan. A winding shaft for retracting a screen is installed inside the first shell. The second shell is located below and connected to the first shell. An opening for the screen to pass through is provided at the bottom of the second shell, and a channel for the screen to pass through is provided at the top of the second shell. The first ion fan is located at one end of the first shell and communicates with it. The second ion fan is located at one end of the second shell and communicates with it. The first and second ion fans are on the same side. Positive and negative charge air masses clean the surface of the screen inside the first and second shells, removing dust adhering to the surface during the retracting and unretracting of the screen, thus preventing dust from absorbing and refracting light and affecting teaching quality.

Description

Technical Field

[0001] This utility model relates to the field of multimedia teaching equipment, and in particular to a multifunctional teaching device based on digital media technology. Background Technology

[0002] Digital media technology is widely used in education. Its core lies in using digital means (text, images, audio, video, animation, interactive programs, etc.) to enhance, expand, and transform the traditional teaching and learning process, thereby improving students' learning efficiency, effectiveness, and experience.

[0003] The surface of the screen that carries the projected image is prone to dust accumulation (whiteboard powder, dust). Dust scatters and absorbs some of the projected light, causing the light projected onto the screen to not be fully reflected back to the students' eyes, making the overall picture appear dark. If the dust is not distributed evenly (for example, some areas have more dust), it will cause inconsistent reflective brightness in different areas of the screen, resulting in obvious bright or dark spots on the screen, affecting color performance and clarity, and is a common factor that degrades the quality of the projected image.

[0004] Therefore, the screen surface needs to be cleaned regularly. However, screen cleaning is quite troublesome. For white plastic screens, the surface is relatively rough, and dust easily accumulates in the micropores. The glass microbead coating of glass screens is very fragile, and improper cleaning can easily damage the coating. In particular, prism screens and metal screens are extremely sensitive to dust because their reflective properties depend on a precise surface structure. During the cleaning process, the surface structure may be damaged, resulting in dark spots.

[0005] Based on the above, the purpose of this utility model is to improve the existing structure of digital media equipment to solve the above problems, ensure the projection effect of the screen, and guarantee the normal conduct of digital media teaching. Summary of the Invention

[0006] The purpose of this invention is to provide a multifunctional teaching device based on digital media technology to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: comprising a first housing, a second housing, a first ion fan, and a second ion fan. The first housing is provided with a winding shaft for rewinding the curtain. The second housing is located below and connected to the first housing. The bottom of the second housing is provided with an opening for the curtain to pass through, and the top of the second housing is provided with a channel for the curtain to pass through. The first ion fan is located at the end of the first housing and communicates with the first housing. The second ion fan is located at the end of the second housing and communicates with the second housing. The first ion fan and the second ion fan are on the same side.

[0008] To optimize the above technical solution, further measures are taken, including: a first dust-adhesive roller, which is arranged in pairs at the channel. The first dust-adhesive roller clamps the curtain to ensure that the curtain rolls up smoothly and avoids the curtain from running during the rolling process. At the same time, the first dust-adhesive roller can also block the channel and suppress the airflow generated by the first ion fan from leaking out along the channel.

[0009] As a further improvement to the above technical solution, a second dust-adhesive roller is also included. The second dust-adhesive roller is set at the opening. The second dust-adhesive roller clamps the curtain to ensure that the curtain rolls up smoothly and avoids the curtain from running during the rolling process. At the same time, the second dust-adhesive roller can also block the opening, suppress the airflow generated by the second ion fan from leaking out along the opening, and also prevent dust from entering the interior of the second housing along the opening.

[0010] As a further improvement to the technical solution, it also includes a first fan, which is connected to the first housing. The first fan and the first ion fan are located on opposite sides of the first housing. The airflow generated by the first fan and the first ion fan are in opposite directions. The negative pressure generated by the first fan works in conjunction with the first ion fan to ensure that the airflow generated by the first ion fan can pass through the first housing evenly.

[0011] As an improvement to the aforementioned technical solution, a second fan is also included. The second fan is connected to the second housing. The second fan and the second ion fan are located on opposite sides of the second housing. The airflow generated by the second fan and the second ion fan are in opposite directions. The negative pressure generated by the second fan works in conjunction with the second ion fan to ensure that the airflow generated by the second ion fan can pass through the second housing evenly. In specific implementations, dust boxes or filter elements can also be installed at the air inlets and outlets of the first ion fan, the second ion fan, the first fan, and the second fan to purify the air / collect dust.

[0012] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: (1) By cleaning the surface of the curtain with positive and negative charge air masses inside the first and second shells, the dust attached to the surface can be removed during the curtain rolling and unrolling process, thus avoiding the dust absorbing and refracting light and affecting the teaching quality; (2) There is no need to wipe the surface of the screen during the dust removal process, which can effectively extend the working life of the screen and avoid wear and tear; (3) The structure is simple and the design is reasonable. It can clean both sides of the curtain evenly during the curtain rolling and unrolling process without the need for a complicated cleaning mechanism. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the front structure of this utility model; Figure 3 for Figure 3 Schematic diagram of the cross-section in the AA direction; Figure 4 This is a schematic diagram of a partial cross-sectional structure of the present invention; In the diagram: First housing-1, winding shaft-101, second housing-2, opening-201, channel-202, first ion fan-3, second ion fan-4, first adhesive roller-5, second adhesive roller-6, first fan-7, second fan-8 Detailed Implementation

[0014] 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. Example 1

[0015] Please see Figure 1-4 This utility model provides a multifunctional teaching device based on digital media technology, including a first housing 1, a second housing 2, a first ion fan 3, a second ion fan 4, a first dust-adhesive roller 5, a second dust-adhesive roller 6, a first fan 7, and a second fan 8. The first housing 1 is provided with a winding shaft 101 for winding up the curtain. In specific implementation, a device for driving the winding shaft 101 can also be added to the first housing 1 to realize the automatic winding and unwinding of the curtain.

[0016] The second housing 2 is located below and connected to the first housing 1. The bottom of the second housing 2 is provided with an opening 201 for the curtain to pass through, and the top of the second housing 2 is provided with a channel 202 for the curtain to pass through. The first ion fan 3 is located at the end of the first housing 1 and communicates with the first housing 1.

[0017] The second ion fan 4 is located at the end of the second housing 2 and communicates with the second housing 2. The first ion fan 3 and the second ion fan 4 are on the same side.

[0018] The first adhesive roller 5 is arranged in pairs at the channel 202, and the second adhesive roller 6 is arranged at the opening 201.

[0019] The first fan 7 is connected to the first housing 1. The first fan 7 and the first ion fan 3 are located on both sides of the first housing 1, and the airflow generated by the first fan 7 and the first ion fan 3 are in opposite directions.

[0020] The second fan 8 is connected to the second housing 2. The second fan 8 and the second ion fan 4 are located on both sides of the second housing 2, and the airflow generated by the second fan 8 and the second ion fan 4 are in opposite directions. Example

[0021] Please see Figure 4 This utility model provides a multifunctional teaching device based on digital media technology, including a first housing 1, a second housing 2, a first ion fan 3, a second ion fan 4, a first dust-adhesive roller 5, and a second dust-adhesive roller 6. The first housing 1 is provided with a winding shaft 101 for winding up the curtain. In specific implementation, a device for driving the winding shaft 101 can also be added to the first housing 1 to realize the automatic winding and unwinding of the curtain.

[0022] The second housing 2 is located below and connected to the first housing 1. The bottom of the second housing 2 is provided with an opening 201 for the curtain to pass through, and the top of the second housing 2 is provided with a channel 202 for the curtain to pass through. The first ion fan 3 is located at the end of the first housing 1 and communicates with the first housing 1.

[0023] The second ion fan 4 is located at the end of the second housing 2 and communicates with the second housing 2. The first ion fan 3 and the second ion fan 4 are on the same side.

[0024] The first adhesive roller 5 is arranged in pairs at the channel 202, and the second adhesive roller 6 is arranged at the opening 201.

[0025] The first ion fan 3 and the second ion fan 4 refer to a device in the prior art that can generate positive and negative charge air masses. The device neutralizes static electricity by using positive and negative charges to achieve the purpose of eliminating static electricity. Since this is prior art, its specific structure and working principle will not be further explained.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Working principle: For Embodiment 1 and Embodiment 2, the first ion fan 3 and the second ion fan 4 can generate a large number of positive and negative charge air masses that move along the first shell 1 and the second shell 2. They can eliminate static electricity on the surface of the screen during the screen rewinding and unwinding process, prevent dust from adhering and separate dust from the screen surface, and ensure the quality of digital media teaching by preventing dust from absorbing and refracting light and affecting the projection effect of the screen.

[0028] The separated dust can eventually leave from the other end of the first housing 1 and the second housing 2. In embodiment 1, the first ion fan 3 and the second ion fan 4 can be started simultaneously during operation. The first fan 7 and the second fan 8 can generate negative pressure to discharge the airflow carrying dust inside the first housing 1 and the second housing 2, thus preventing dust from settling inside the first housing 1 and the second housing 2.

[0029] For Embodiments 1 and 2, during the winding and unwinding process, the curtain can pass through the channel 202 and the opening 201. During this process, the dust adhering to the surface of the curtain can be captured by the first dust-adhesive roller 5 and the second dust-adhesive roller 6, which can effectively reduce the dust adhering to the surface of the curtain.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-functional teaching device based on digital media technology, characterized in that, include: A first housing (1) is provided with a winding shaft (101) for winding up the curtain. The second housing (2) is located below and connected to the first housing (1). The bottom of the second housing (2) is provided with an opening (201) for the curtain to pass through, and the top of the second housing (2) is provided with a channel (202) for the curtain to pass through. The first ion fan (3) is located at the end of the first housing (1) and communicates with the first housing (1); The second ion fan (4) is located at the end of the second housing (2) and communicates with the second housing (2). The first ion fan (3) and the second ion fan (4) are on the same side.

2. The multi-functional teaching device based on digital media technology according to claim 1, characterized in that: It also includes a first adhesive roller (5), which is arranged in pairs at the channel (202).

3. The multi-functional teaching device based on digital media technology according to claim 1, characterized in that: It also includes a second adhesive roller (6), which is disposed at the opening (201).

4. The multi-functional teaching device based on digital media technology according to any one of claims 1-3, characterized in that: It also includes a first fan (7), which is connected to the first housing (1). The first fan (7) and the first ion fan (3) are located on both sides of the first housing (1), and the airflow generated by the first fan (7) and the first ion fan (3) are opposite in direction.

5. The multi-functional teaching device based on digital media technology according to any one of claims 1-3, characterized in that: It also includes a second fan (8), which is connected to the second housing (2). The second fan (8) and the second ion fan (4) are located on both sides of the second housing (2), and the airflow generated by the second fan (8) and the second ion fan (4) are in opposite directions.

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