Multifunctional teaching display equipment with dust removal function

Abstract

The invention discloses multifunctional teaching display equipment with a dust removal function, and relates to the technical field of teaching display equipment, the multifunctional teaching display equipment comprises two sliding blocks, the opposite sides of the two sliding blocks are fixedly connected with a fixing plate, the bottom of the fixing plate is fixedly connected with two elastic plates, and the two elastic plates are fixedly connected with the bottom of the fixing plate. The two elastic plates are symmetrically arranged with the middle frame as the center, the ends, away from the fixing plate, of the elastic plates are fixedly connected with a fixing frame, the middle of the bottom of the fixing frame is rotationally connected with a roller, and the bottom of the fixing frame is fixedly connected with a wave-shaped brush. According to the multifunctional teaching display equipment with the dust removal function, the wave-shaped structure of the brush increases the contact area with a cleaned surface, the wave-shaped structure of the brush can achieve the dual effects of scraping, sweeping and gathering, in the moving process, stubborn dust attached to the surface is scraped by the wave-shaped protruding part of the brush firstly, and then dust is removed; and the depressed part gathers the dispersed dust into a strip shape.

Description

Technical Field

[0001] This invention relates to the field of teaching display equipment technology, specifically a multifunctional teaching display device with dust removal function. Background Technology

[0002] In teaching activities, display equipment is a core tool for knowledge transfer and demonstration, widely used in classrooms, laboratories, lecture halls, and other settings. Its display effectiveness and ease of use directly impact teaching quality. With the diversification of teaching needs, traditional single-function display boards can no longer meet the comprehensive requirements of modern teaching, such as physical demonstrations, multimedia interaction, and environmental cleanliness. Multifunctional integration has become the development trend for teaching display equipment.

[0003] In existing technologies, such as the multi-functional teaching display device with dust removal function described in patent number CN114360411B, there is a wind-pressure driven foam dust removal and cleaning device, a passive pressurized spray disinfection device, a negative pressure adsorption support and fixing device, a scissor-type lifting support assembly, a display board, a support platform, and casters. This device utilizes airflow to generate cleaning foam to clean dust from the display board, effectively improving the cleaning level and reducing cleaning dead zones. While it achieves the basic cleaning function of the display board and can handle some stubborn stains, foam residue requires additional wiping and cleaning, which can easily lead to… This leads to secondary pollution of the display panels. Furthermore, foam cleaning methods have poor compatibility with display panels made of special materials such as electronic screens and anti-glare tempered glass. Simple wiping with flat brushes or scrapers has a limited contact area with the display panels, making it difficult to effectively remove stubborn dust. During the cleaning process, dust is easily scattered or diffused again, polluting the teaching environment. At the same time, there is a lack of centralized collection and sealing protection for dust after cleaning, resulting in low dust removal efficiency. In addition, the display angle adjustment function is missing or imperfect, and it is impossible to flexibly adjust the tilt angle according to the height and viewing angle of teachers and students, resulting in poor adaptability and affecting the display effect. Summary of the Invention

[0004] To solve the above technical problems, the present invention is achieved through the following technical solution: a multi-functional teaching display device with dust removal function, including a bracket, the number of brackets being two, a frame being provided on the opposite sides of the two brackets, a connector being provided at the connection between the frame and the bracket, the number of connectors being two, and a panel being fixedly connected inside the frame. Dust removal assembly, which is slidably mounted on the frame and located at the front end of the panel; The dust removal component includes two sliders slidably connected to a frame. Fixed plates are fixedly connected to opposite sides of the two sliders, and two spring plates are fixedly connected to the bottom of the fixed plates. These spring plates are symmetrically arranged around the central frame. The sliders drive the fixed plates to slide within the grooves of the extension block, causing the dust removal component to move parallel to the panel surface. This allows the brush on the side of the fixed frame closest to the panel to clean the panel surface. Under the elastic force of the spring plates, the brush at the bottom of the fixed frame makes close contact with the panel. By designing the brush with a wave-like structure, the brush conforms to the uneven areas of the cleaning surface, thereby... It can enhance dust removal force. The end of the spring plate away from the fixed plate is fixedly connected to the fixed frame. The bottom center of the fixed frame is rotatably connected to the roller. The bottom of the fixed frame is fixedly connected to the brush. The brush is wavy. The wavy structure of the brush increases the contact area with the cleaning surface. The wavy structure of the brush can form a dual function of scraping and gathering. During the movement, the raised part of the brush wave first scrapes away the stubborn dust attached to the surface, and the concave part gathers the dispersed dust into strips. Then, through the negative pressure generated by the top fan, the dust is quickly adsorbed into the dust collection component through the side round holes, avoiding dust scattering or secondary diffusion and improving the dust cleaning rate.

[0005] Preferably, a connecting plate is fixedly connected to the inner wall of the fixed frame near the fixed plate. The connecting plate is inclined, and there are two connecting plates symmetrically arranged on two sides of the inner wall of the fixed frame. A slider is fixedly connected to the end of the fixed plate, and there are two sliders symmetrically arranged at both ends of the fixed plate. A through hole is formed in the middle of the fixed plate. A middle frame is fixedly connected to the end of the connecting plate away from the fixed frame, and the middle frame passes through the fixed plate via the through hole. A top plate is fixedly connected to the end of the middle frame away from the connecting plate. The top plate has a hole, and a protective cover is fixedly connected to the side of the top plate away from the middle frame. A fan is fixedly connected to the outer side of the top plate. When the fan operates, the air inside the fixed frame is quickly extracted, creating a low-pressure area at the round hole on the inclined side of the bottom of the fixed frame. Due to the pressure difference, outside air carrying dust rushes into the interior of the fixed frame through the round hole. The air passes through multiple baffles inside the middle frame, where the dust is trapped. The purified air is discharged through the fan outlet and square hole. At the same time, the dust generated after brush cleaning is simultaneously adsorbed through the side round hole, preventing secondary dust pollution and improving cleaning efficiency. The output end of the fan is connected to the middle frame through a hole. The fan is located within the protective cover. Inside, a scraper is fixedly connected to the inner part of the fixed frame near the roller. The roller is made of silicone or rubber, which has good elastic cushioning performance. It can offset the slight bumps or depressions on the panel surface during cleaning, or the bumps when the operator pushes the device, preventing the brush from detaching from the panel or sudden pressure changes. At the same time, the rolling friction of the roller replaces the sliding friction between the brush and the display surface, reducing the resistance fluctuations when the device moves. This allows the brush to cover the panel at a uniform speed and pressure, ensuring consistent dust removal and avoiding localized missed areas or over-wiping. The outer side of the protective cover has square holes, the number of which is... There are multiple [plates], including two spring plates symmetrically arranged around the center frame. An arc plate is fixedly connected to the end of the scraper away from the roller. After the fan stops, the arc plate prevents the dust filtered in the center frame from flowing back into the external environment due to air pressure balance. The bottom edge of the fixed frame is inclined, and there are multiple round holes on the inclined bottom edge of the fixed frame. These round holes are divided into two groups, and the two groups of round holes are symmetrically arranged around the roller at the bottom of the fixed frame. A baffle is fixedly connected inside the center frame. There are multiple baffles, and the baffles are alternately arranged on the two inner side walls of the center frame.

[0006] Preferably, the frame includes a frame body, with a panel fixedly installed inside the frame body. Two circular grooves are formed on one side of the frame body near the support, symmetrically arranged around the panel. Two locking blocks are fixedly connected to the bottom inside the circular grooves. Four square grooves are formed on one side of the frame body near the edge of the circular grooves, with inclined sides. These four square grooves extend through one side of the frame body along the moving direction of the dust removal component, symmetrically arranged on both sides of the frame body around the panel. Two square grooves on one side are symmetrically arranged around the circular grooves. Two extension blocks are fixedly connected to the front end of the frame body, fixedly installed on two sides of the frame body in the vertical direction. Sliding grooves are formed on opposite sides of the extension blocks, with a trapezoidal shape and a narrower top and wider bottom cross-section design to form a close fit with the slider, increasing the contact guiding area and effectively limiting... The system controls the left-right offset and up-down wobbling of the fixed plate during sliding, ensuring that the brush at the bottom of the fixed frame always moves in contact with the panel surface. This avoids cleaning dead corners or misalignment of the airflow channel of the power module caused by offset. At the same time, the trapezoidal structure has stronger guiding properties and uniform sliding resistance, improving the smoothness of the cleaning plate's movement and reducing the difficulty of operation. The slider is located inside the slide groove, and a chip discharge port is opened on the side of the extension block near the frame. An inclined plate is fixedly connected to the side of the extension block near the slide groove, and an elastic plate is fixedly connected to the end of the chip discharge port. The elastic plates at both ends of the slide groove are made of elastic metal and have the ability to adapt to elastic deformation. When the slider slides to the end of the slide groove, the elastic plate deforms under force, allowing the slider to pass through the elastic plate. Subsequently, the elastic plate returns to its original position, causing the dust removal component to stop at the end of the slide groove. This prevents the slider from being damaged by colliding with the end of the slide groove due to inertia, and also prevents the dust removal component from sliding randomly when the equipment is idle, affecting the display effect.

[0007] Preferably, the connector includes a rotating base, which is rotatably connected to the bracket. A central rod is fixedly connected to the middle of the end of the rotating base away from the bracket. A protrusion is fixedly connected to the end of the central rod away from the rotating base. The protrusion is located inside the circular groove and at the interval between two locking blocks. A limit plate is fixedly connected to the outer side of the central rod near the protrusion. The frame is installed in the middle of the two brackets, so that the central block and the contact block are located inside the square groove. Utilizing the elastic properties of the compression spring, the contact block is tightly fitted with the inner wall of the square groove, forming a multi-point uniform clamping force. This effectively limits the displacement of the frame in the horizontal and vertical directions, preventing loosening or shaking during equipment movement or use, ensuring the flatness of the panel and the safety of use. Compared with the traditional bolt fixing method, the continuous elastic pressure provided by the compression spring can offset the gaps caused by temperature changes, vibrations, and other factors, further improving clamping stability. Moreover, during assembly, only one bolt needs to be inserted... The square slot of the frame is aligned with the middle block and pushed in. The compression spring pushes the contact block to automatically complete the clamping and positioning, which is convenient for disassembly and installation. The limiting plate is elastic and is located inside the circular slot. There are multiple limiting plates, which are evenly distributed around the middle rod. The rotating seat has a slot at the edge near the middle rod. The middle block is fixedly connected to the outside of the middle rod. The middle block is U-shaped. The two sides of the middle block are located inside the two square slots on one side of the frame. The sides of the middle block are slidably connected to the sliding rod. The end of the sliding rod away from the middle block is fixedly connected to the contact block. The contact block is located inside the square slot. The outside of the sliding rod is fitted with a compression spring. The two ends of the compression spring are fixedly connected to the contact block and the middle block, respectively. There are four contact blocks. Two contact blocks are divided into two groups. The two groups of contact blocks are respectively set on the two sides of the middle block. The two contact blocks in one group are symmetrically arranged around the side of the middle block.

[0008] Preferably, the bracket includes a support column, a through groove is provided on the side of the support column near the connector, a bearing is fixedly connected inside the through groove, a rotating seat is located inside the through groove, and a driving component is connected to the outside of the rotating seat. When the frame is installed, the middle rod is located inside the circular groove on the side of the frame, and the protrusion at the end of the middle rod cooperates with two locking blocks at the bottom of the circular groove, so that the driving component can drive the frame to rotate through the connector, thereby adjusting the tilt angle of the panel. The tilt angle of the panel can be precisely adjusted in stages to meet the viewing angle needs of teachers and students of different heights and different teaching scenarios. After the angle is adjusted, under the mutual attraction of the two magnetic blocks, the magnetic blocks move towards the rotating seat inside the guide groove, so that the magnetic blocks are located inside the groove opening. The two magnetic blocks on the vertical surface prevent the rotating seat from rotating when not adjusted. A guide groove is provided on the outer side of the support column near the through groove. The guide groove is symmetrically arranged along the vertical direction with the through groove as the center. There are two magnetic blocks slidably connected inside the guide groove. The magnetic properties of the two magnetic blocks are opposite.

[0009] This invention provides a multifunctional teaching display device with dust removal function. It has the following beneficial effects: (i) This multi-functional teaching demonstration device with dust removal function increases the contact area with the clean surface through the wave structure of the brush. The wave structure of the brush can form a dual function of scraping and gathering. During the movement, the raised part of the brush wave first scrapes away the stubborn dust attached to the surface, and the concave part gathers the dispersed dust into strips. Then, through the negative pressure generated by the top fan, the dust is quickly adsorbed into the dust collection component through the side round holes, avoiding dust scattering or secondary diffusion and improving the dust cleaning rate.

[0010] (ii) The teaching multifunctional display equipment with dust removal function uses silicone or rubber rollers with good elastic cushioning performance, which can offset the slight protrusions or depressions on the panel surface or the bumps when the operator pushes it during the cleaning process, and avoid the brush from detaching from the panel or sudden pressure changes.

[0011] (III) The multi-functional teaching display equipment with dust removal function uses a trapezoidal slide with a cross-section design that is narrow at the top and wide at the bottom to fit the slider, which increases the contact guide area and can effectively limit the left and right offset and up and down sway of the fixed plate during the sliding process. This ensures that the brush at the bottom of the fixed frame always moves in contact with the panel surface, avoiding cleaning dead corners or misalignment of the airflow channel of the power module caused by offset.

[0012] (iv) The teaching multifunctional display equipment with dust removal function uses elastic metal material for the elastic plates at both ends of the slide, which has the ability to adapt to elastic deformation, to avoid damage to the slide end caused by the slider due to inertia collision, and at the same time to prevent the dust removal components from sliding randomly when the equipment is idle, thus affecting the display effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the dust removal component of the present invention; Figure 3 This is a cross-sectional structural schematic diagram of the dust removal component of the present invention; Figure 4 This is a partial bottom view of the dust removal component of the present invention; Figure 5 This is a partial structural schematic diagram of the dust removal component of the present invention; Figure 6 This is a schematic diagram of the structure of the fixing plate of the present invention; Figure 7 This is a schematic diagram of the framework of the present invention; Figure 8 This is a partial structural schematic diagram of the framework of the present invention; Figure 9 This is a partial cross-sectional structural diagram of the framework of the present invention; Figure 10 This is a schematic diagram of the structure of the connector of the present invention; Figure 11 This is a partial structural schematic diagram of the connector of the present invention; Figure 12 This is a partial structural schematic diagram of the support structure of the present invention.

[0014] In the diagram: 1. Bracket; 11. Support column; 12. Through groove; 13. Bearing; 14. Guide groove; 15. Magnetic block; 2. Connector; 21. Rotary seat; 22. Slot; 23. Intermediate rod; 24. Intermediate block; 25. Slide rod; 26. Compression spring; 27. Limiting plate; 28. Protrusion; 29. ​​Contact block; 3. Dust removal assembly; 31. Fixing plate; 32. Protective cover; 33. Spring plate; 34. Fixing frame; 35. Square hole; 36. 37. Fan; 38. Connecting plate; 39. Middle frame; 30. Baffle; 310. Roller; 311. Arc plate; 312. Scraper; 313. Round hole; 314. Brush; 315. Top plate; 316. Through hole; 317. Slider; 4. Frame; 41. Frame body; 42. Round groove; 43. Locking block; 44. Square groove; 45. Extension block; 46. Slide groove; 47. Elastic plate; 48. Chip discharge port; 49. Inclined plate; 5. Panel. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] First embodiment, such as Figures 1 to 6 As shown, the present invention provides a technical solution: a multi-functional teaching display device with dust removal function, including a support 1, the number of supports 1 is two, a frame 4 is provided on the opposite side of the two supports 1, a connector 2 is provided at the connection between the frame 4 and the support 1, the number of connector 2 is two, and a panel 5 is fixedly connected inside the frame 4. Dust removal component 3 is slidably mounted on frame 4 and is located at the front end of panel 5; The dust removal component 3 includes two sliders 317, which are slidably connected to the frame 4. A fixed plate 31 is fixedly connected to the opposite side of each slider 317. A spring plate 33 is fixedly connected to the bottom of each fixed plate 31. There are two spring plates 33, symmetrically arranged with the middle frame 38 as the center. The sliders 317 drive the fixed plates 31 to slide within the groove 46 of the extension block 45, causing the dust removal component 3 to move parallel to the surface of the panel 5. This allows the brush 314 on the side of the fixed frame 34 closest to the panel 5 to clean the surface of the panel 5. Under the elastic force of the spring plate 33, the brush 314 at the bottom of the fixed frame 34 makes close contact with the panel. By setting the brush 314 to a wave-like structure, the brush 314... 14. The spring plate 33 fits the uneven surface of the cleaning surface, thereby enhancing the dust removal force. A fixed frame 34 is fixedly connected to the end of the spring plate 33 away from the fixed plate 31. A roller 310 is rotatably connected to the bottom middle of the fixed frame 34. A brush 314 is fixedly connected to the bottom of the fixed frame 34. The brush 314 is wavy. The wavy structure of the brush 314 increases the contact area with the cleaning surface. The wavy structure of the brush 314 can form a dual function of scraping and gathering. During the movement, the raised part of the wave of the brush 314 first scrapes away the stubborn dust attached to the surface, and the concave part gathers the dispersed dust into strips. Then, through the negative pressure generated by the top fan, the dust is quickly adsorbed into the dust collection component through the side round hole 313, avoiding dust scattering or secondary diffusion and improving the dust cleaning rate.

[0017] A connecting plate 37 is fixedly connected to the inner wall of the fixed frame 34 near the fixed plate 31. The connecting plate 37 is inclined, and there are two connecting plates 37 symmetrically arranged on two sides of the inner wall of the fixed frame 34. A slider 317 is fixedly connected to the end of the fixed plate 31. There are two sliders 317 symmetrically arranged at both ends of the fixed plate 31. A through hole 316 is opened in the middle of the fixed plate 31. A middle frame 38 is fixedly connected to the end of the connecting plate 37 away from the fixed frame 34. The middle frame 38 passes through the fixed plate 31 through the through hole 316. A top plate 315 is fixedly connected to the end of the middle frame 38 away from the connecting plate 37. The top plate 315 has a hole. A protective cover 32 is fixedly connected to one side of the 8, and a fan 36 is fixedly connected to the outer side of the top plate 315. When the fan 36 operates, the air inside the fixed frame 34 is quickly extracted, creating a low-pressure area in the round hole 313 on the inclined side of the bottom of the fixed frame 34. Due to the pressure difference, external air carrying dust rushes into the interior of the fixed frame 34 through the round hole 313. The air passes through multiple baffles 39 inside the middle frame 38, where the dust is trapped. The purified air is discharged through the air outlet of the fan 36 and the square hole 35. At the same time, the dust generated after cleaning by the brush 314 is simultaneously adsorbed through the side round hole 313, avoiding secondary dust pollution and improving cleaning efficiency. The output end of the fan 36 is connected to the middle frame 38 through the hole. The fan 36 is located inside the protective cover 32. A scraper 312 is fixedly connected to the inside of the fixed frame 34 near the roller 310. The roller 310 is made of silicone or rubber, possessing good elastic cushioning performance. This offsets slight protrusions or depressions on the surface of the panel 5 during cleaning, or bumps caused by the operator pushing the device, preventing partial detachment of the brush 314 from the panel 5 or sudden pressure changes. Simultaneously, the rolling friction of the roller replaces the sliding friction between the brush and the display surface, reducing resistance fluctuations during device movement. This allows the brush to cover the panel at a uniform speed and pressure, ensuring consistent dust removal and preventing localized missed areas or excessive wiping. The outer side of the protective cover 32 has multiple square holes 35. The spring plate 33... There are two spring plates 33, which are symmetrically arranged around the middle frame 38. The scraper 312 is fixedly connected to an arc plate 311 at the end away from the roller 310. After the fan 36 stops, the arc plate 311 is set to prevent the dust filtered in the middle frame 38 from flowing back to the external environment due to air pressure balance. The bottom edge of the fixed frame 34 is inclined. There are multiple round holes 313 on the inclined bottom edge of the fixed frame 34. The multiple round holes 313 are divided into two groups. The two groups of round holes 313 are symmetrically arranged around the roller 310 at the bottom of the fixed frame 34. There are multiple baffles 39 fixedly connected inside the middle frame 38. The multiple baffles 39 are alternately arranged on the two inner side walls of the middle frame 38.

[0018] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 7 to 9 As shown, the frame 4 includes a frame body 41, and a panel 5 is fixedly installed inside the frame body 41. Two circular grooves 42 are provided on the side of the frame body 41 near the support 1, symmetrically arranged with the panel 5 as the center. Two locking blocks 43 are fixedly connected to the bottom inside the circular grooves 42. A square groove 44 is provided on the edge of the frame body 41 near the edge of the circular grooves 42, with the side of the square groove inclined. The square groove 44 passes through one side of the frame body 41 along the moving direction of the dust removal component 3. There are four square slots 44, symmetrically arranged on both sides of the frame 41 with the panel 5 as the center. Two square slots 44 on one side are symmetrically arranged with the circular slot 42 as the center. An extension block 45 is fixedly connected to the front end of the frame 41. There are two extension blocks 45, fixedly installed on the two sides of the frame 41 in the vertical direction. A sliding groove 46 is provided on the opposite side of the extension block 45. The sliding groove 46 is trapezoidal, utilizing a cross-sectional design that is narrower at the top and wider at the bottom to form a close fit with the slider 317, increasing the contact guiding area. The design effectively limits the left-right offset and up-down wobbling of the fixed plate 31 during sliding, ensuring that the brush 314 at the bottom of the fixed frame 34 always moves in contact with the surface of the panel 5, avoiding cleaning dead corners or misalignment of the airflow channel of the power module due to offset. At the same time, the trapezoidal structure has stronger guiding properties and uniform sliding resistance, improving the smoothness of the cleaning plate's movement and reducing the difficulty of operation. The slider 317 is located inside the slide groove 46, and the extension block 45 has a chip discharge port 48 on the side near the frame 41. The side of the extension block 45 near the slide groove 46 is fixedly connected to an inclined... The end of plate 49 and chip discharge port 48 is fixedly connected to an elastic plate 47. The elastic plates 47 at both ends of the slide 46 are made of elastic metal and have adaptive elastic deformation capability. When the slider 317 slides to the end of the slide 46, the elastic plate 47 is deformed by force, so that the slider 317 passes through the elastic plate 47. Then the elastic plate 47 returns to its original position, so that the dust removal component 3 stops at the end of the slide 46, avoiding damage to the end of the slide 46 caused by the slider 317 colliding with it due to inertia. At the same time, it prevents the dust removal component 3 from sliding randomly when the equipment is idle, thus affecting the display effect.

[0019] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 10 to 12As shown, the connector 2 includes a rotating base 21, which is rotatably connected to the bracket 1. A middle rod 23 is fixedly connected to the middle of the end of the rotating base 21 away from the bracket 1. A protrusion 28 is fixedly connected to the end of the middle rod 23 away from the rotating base 21. The protrusion 28 is located inside the circular groove 42 and is located at the interval between the two locking blocks 43. A limiting plate 27 is fixedly connected to the outer side of the middle rod 23 near the protrusion 28. The frame 41 is installed in the middle of the two brackets 1, so that the middle block 24 and the contact block 29 are located inside the square groove 44. Utilizing the elastic properties of the compression spring 26, the contact block 29 is tightly fitted against the inner wall of the square groove 44, forming a multi-point uniform clamping force. This effectively restricts the displacement of the frame 41 in the horizontal and vertical directions, preventing loosening or shaking during equipment movement or use, and ensuring the flatness and safety of the panel 5. Compared to traditional bolt fixing methods, the continuous elastic pressure provided by the compression spring 26 can offset gaps caused by temperature changes, vibrations, and other factors, further improving clamping stability. Moreover, during assembly, it is only necessary to align the square groove 44 of the frame 41 with the center. When block 24 is pushed in, compression spring 26 pushes the contact block to automatically complete clamping and positioning, facilitating disassembly and installation. Limiting plate 27 is elastic and located inside circular groove 42. There are multiple limiting plates 27, which are evenly distributed around the central rod 23. The rotating base 21 has a slot 22 at one edge near the central rod 23. A central block 24 is fixedly connected to the outside of the central rod 23. The central block 24 is U-shaped, and its two sides are located inside two square grooves 44 on one side of the frame 41. A slide rod 25 is slidably connected to the side of the intermediate block 24. A contact block 29 is fixedly connected to the end of the slide rod 25 away from the intermediate block 24. The contact block 29 is located inside the square groove 44. A compression spring 26 is sleeved on the outside of the slide rod 25. The two ends of the compression spring 26 are fixedly connected to the contact block 29 and the intermediate block 24 respectively. There are four contact blocks 29. Two contact blocks 29 are divided into two groups. The two groups of contact blocks 29 are respectively set on the two sides of the intermediate block 24. The two contact blocks 29 in one group are symmetrically arranged with the side of the intermediate block 24 as the center.

[0020] The support frame 1 includes a support column 11. A through groove 12 is provided on the side of the support column 11 near the connector 2. A bearing 13 is fixedly connected inside the through groove 12. A rotating seat 21 is located inside the through groove 12. A driving component is connected to the outside of the rotating seat 21. When the frame 41 is installed, the middle rod 23 is located inside the circular groove 42 on the side of the frame 41. The protrusion 28 at the end of the middle rod 23 cooperates with the two locking blocks 43 at the bottom of the circular groove 42, so that the driving component can drive the frame 41 to rotate through the connector 2. This allows the tilt angle of the panel 5 to be adjusted, enabling precise adjustment of the tilt angle of the panel 5 in stages to meet the needs of teachers and students of different heights. To meet the viewing angle requirements of different teaching scenarios, after adjusting the angle, the magnetic blocks 15 move towards the rotating seat 21 inside the guide groove 14 under the mutual attraction of the two magnetic blocks 15, so that the magnetic blocks 15 are located inside the slot 22. The two magnetic blocks 15 on the vertical surface prevent the rotating seat 21 from rotating when not adjusted. The support column 11 has a guide groove 14 on the outer side near the through groove 12. The guide groove 14 is symmetrically arranged along the vertical direction with the through groove 12 as the center. The magnetic blocks 15 are slidably connected inside the guide groove 14. There are two magnetic blocks 15, and the magnetic properties of the two magnetic blocks 15 are opposite.

[0021] In use, the frame 41 is installed in the middle of the two brackets 1, so that the middle block 24 and the contact block 29 are located inside the square groove 44. Utilizing the elastic properties of the compression spring 26, the contact block 29 is tightly fitted with the inner wall of the square groove 44, forming a multi-point uniform clamping force, which effectively restricts the displacement of the frame 41 in the horizontal and vertical directions, avoids loosening or shaking during equipment movement or use, and ensures the flatness of the panel 5 and the safety of use.

[0022] When the frame 41 is installed, the middle rod 23 is located inside the circular groove 42 on the side of the frame 41, and the protrusion 28 at the end of the middle rod 23 cooperates with the two locking blocks 43 at the bottom of the circular groove 42, so that the driving component can drive the frame 41 to rotate through the connecting component 2, thereby adjusting the tilt angle of the panel 5.

[0023] The slider 317 drives the fixing plate 31 to slide inside the groove 46 of the extension block 45, so that the dust removal component 3 moves along the parallel direction of the panel 5 surface, so that the brush 314 of the fixing frame 34 near the panel 5 cleans the surface of the panel 5. Under the elastic force of the spring plate 33, the brush 314 at the bottom of the fixing frame 34 is in close contact with the panel.

[0024] When the fan 36 operates, the air inside the fixed frame 34 is quickly drawn out, creating a low-pressure area in the round hole 313 on the inclined side at the bottom of the fixed frame 34. Due to the pressure difference, external air carrying dust rushes into the interior of the fixed frame 34 through the round hole 313. The air passes through multiple baffles 39 inside the middle frame 38, where the dust is trapped. The purified air is then discharged through the air outlet of the fan 36 and the square hole 35.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multifunctional teaching display device with dust removal function, characterized in that, include: The bracket (1) has two components. A frame (4) is provided on the opposite side of the two brackets (1). A connector (2) is provided at the connection between the frame (4) and the bracket (1). There are two connectors (2). A panel (5) is fixedly connected inside the frame (4). Dust removal assembly (3), which is slidably mounted on frame (4) and located at the front end of panel (5); The dust removal component (3) includes a slider (317), which is slidably connected to the frame (4). There are two sliders (317). A fixed plate (31) is fixedly connected to the opposite side of the two sliders (317). A spring plate (33) is fixedly connected to the bottom of the fixed plate (31). A fixed frame (34) is fixedly connected to the end of the spring plate (33) away from the fixed plate (31). A roller (310) is rotatably connected to the middle of the bottom of the fixed frame (34). A brush (314) is fixedly connected to the bottom of the fixed frame (34). The brush (314) is wavy.

2. The multifunctional teaching display device with dust removal function according to claim 1, characterized in that: A connecting plate (37) is fixedly connected to the inner wall of the fixed frame (34) near the fixed plate (31). The connecting plate (37) is inclined. There are two connecting plates (37). The two connecting plates (37) are symmetrically arranged on the two sides of the inner wall of the fixed frame (34). A slider (317) is fixedly connected to the end of the fixed plate (31). There are two sliders (317). The two sliders (317) are symmetrically arranged at both ends of the fixed plate (31). A through hole (316) is opened in the middle of the fixed plate (31).

3. The multifunctional teaching display device with dust removal function according to claim 2, characterized in that: The connecting plate (37) is fixedly connected to a middle frame (38) at one end away from the fixed frame (34). The middle frame (38) is fixedly connected to a top plate (315) at one end away from the connecting plate (37). The top plate (315) has a hole. A protective cover (32) is fixedly connected to the side of the top plate (315) away from the middle frame (38). A fan (36) is fixedly connected to the outside of the top plate (315). A scraper (312) is fixedly connected to the inside of the fixed frame (34) near the roller (310). A square hole (35) is opened on the outside of the protective cover (32).

4. A multifunctional teaching display device with dust removal function according to claim 3, characterized in that: The scraper (312) is fixedly connected to an arc plate (311) at one end away from the roller (310). The bottom edge of the fixed frame (34) is inclined. The bottom inclined edge of the fixed frame (34) is provided with a round hole (313). There are multiple round holes (313). The multiple round holes (313) are divided into two groups. The two groups of round holes (313) are symmetrically arranged at the bottom of the fixed frame (34) with the roller (310) as the center. The inside of the middle frame (38) is fixedly connected to a baffle (39).

5. A multifunctional teaching display device with dust removal function according to claim 1, characterized in that: The frame (4) includes a frame (41). A circular groove (42) is provided on the side of the frame (41) near the support (1). A locking block (43) is fixedly connected to the bottom of the circular groove (42). There are two locking blocks (43). A square groove (44) is provided at the edge of the frame (41) near the circular groove (42). The square groove (44) passes through one side of the frame (41) along the moving direction of the dust removal component (3). There are four square grooves (44). The four square grooves (44) are symmetrically arranged on both sides of the frame (41) with the panel (5) as the center. The two square grooves (44) on one side are symmetrically arranged with the circular groove (42) as the center.

6. A multifunctional teaching display device with dust removal function according to claim 5, characterized in that: An extension block (45) is fixedly connected to the front end of the frame (41). There are two extension blocks (45). The two extension blocks (45) are fixedly installed on two sides of the frame (41) in the vertical direction. A slide groove (46) is provided on the opposite side of the extension block (45). The slider (317) is located inside the slide groove (46). A chip discharge port (48) is provided on the side of the extension block (45) near the frame (41). An inclined plate (49) is fixedly connected to the side of the extension block (45) near the slide groove (46). An elastic plate (47) is fixedly connected to the end of the chip discharge port (48).

7. A multifunctional teaching display device with dust removal function according to claim 1, characterized in that: The connector (2) includes a rotating seat (21), which is rotatably connected to the bracket (1). A middle rod (23) is fixedly connected to the middle of the end of the rotating seat (21) away from the bracket (1). A protrusion (28) is fixedly connected to the end of the middle rod (23) away from the rotating seat (21). A limiting plate (27) is fixedly connected to the outer side of the middle rod (23) near the protrusion (28). There are multiple limiting plates (27), which are evenly distributed around the middle rod (23).

8. A multifunctional teaching display device with dust removal function according to claim 7, characterized in that: The rotating base (21) has a slot (22) at the edge near the middle rod (23). A middle block (24) is fixedly connected to the outside of the middle rod (23). The middle block (24) is U-shaped. The two sides of the middle block (24) are located inside the two square slots (44) on one side of the frame (41). A sliding rod (25) is slidably connected to the side of the middle block (24). A contact block (29) is fixedly connected to the end of the sliding rod (25) away from the middle block (24). The contact block (29) is located inside the square slot (44).

9. A multifunctional teaching display device with dust removal function according to claim 8, characterized in that: A compression spring (26) is sleeved on the outside of the slide bar (25). The two ends of the compression spring (26) are fixedly connected to the contact block (29) and the intermediate block (24) respectively. There are four contact blocks (29). Two contact blocks (29) are divided into a group. The two groups of contact blocks (29) are respectively set on the two sides of the intermediate block (24). The two contact blocks (29) in a group are symmetrically arranged with the side of the intermediate block (24) as the center.

10. A multifunctional teaching display device with dust removal function according to claim 8, characterized in that: The bracket (1) includes a support column (11), and a through groove (12) is provided on the side of the support column (11) near the connector (2). A bearing (13) is fixedly connected inside the through groove (12). The rotating seat (21) is located inside the through groove (12). A guide groove (14) is provided on the outer side of the support column (11) near the through groove (12). The guide groove (14) is symmetrically arranged along the vertical direction with the through groove (12) as the center. A magnetic block (15) is slidably connected inside the guide groove (14).

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