Novel intelligent teaching equipment for smart classroom

Abstract

The invention discloses a novel intelligent teaching device for a smart classroom, and the device comprises a first fixed plate, the upper end of the front surface of the first fixed plate is fixedly provided with an LED lamp strip, the lower end of the front surface of the first fixed plate is fixedly provided with a microphone, and the front of the first fixed plate is provided with a multimedia display screen. An electrical box is fixedly installed at the middle end of the back face of the first fixing plate, and an image recognition module, a microprocessor main control module, a word database module, a voice recognition module and a sentence processing verification module are sequentially and fixedly installed in an inner cavity of the electrical box from left to right. The physical operation that a student manually shakes the rotating shaft participates in learning, visual presentation of the letter balls, display of the word list, voice interaction of oral sentence making and color feedback of the LED lamp strip are combined, the touch sense, the visual sense and the hearing sense of the student are fully aroused, the interaction mechanism that physical operation and intelligent feedback are deeply fused is adopted, and the learning efficiency is improved. The interestingness of learning and the sense of participation of students are greatly enhanced.

Description

Technical Field

[0001] This invention relates to the field of teaching equipment technology, specifically to a new type of intelligent teaching device for smart classrooms. Background Technology

[0002] With the deep integration of information technology and education, smart classrooms have become an important direction for promoting the modernization of teaching. Various intelligent teaching devices are being gradually introduced into classroom teaching to enhance teacher-student interaction and improve students' participation and learning efficiency through human-computer interaction and multimedia presentations.

[0003] In language courses such as English, vocabulary memorization, sentence construction, and oral expression are core teaching components, especially requiring training methods that are both fun and effective. However, existing smart classroom devices are mostly based on one-way information display and lack interactive mechanisms that integrate physical operation and feedback. This makes it difficult to fully mobilize students' multi-sensory participation in the cultivation of key abilities such as vocabulary memorization and sentence application. In addition, most devices have feedback lag issues. After students complete sentence construction exercises, they cannot obtain judgment and correction in real time and still rely on teachers for manual correction, which restricts the continuity of the learning process and teaching efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a new type of intelligent teaching device for smart classrooms, which enhances students' autonomous interaction during English teaching and improves the quality and efficiency of teaching assignments.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel intelligent teaching device for smart classrooms, comprising a first fixing plate, an LED light strip fixedly mounted on the upper end of the front surface of the first fixing plate, a microphone fixedly mounted on the lower end of the front surface of the first fixing plate, a multimedia display screen disposed in front of the first fixing plate, an electrical box fixedly mounted in the middle of the back of the first fixing plate, and an image recognition module, a microprocessor main control module, a word database module, a speech recognition module, and a sentence processing verification module fixedly mounted sequentially from left to right inside the electrical box, and a second fixing plate disposed to the left of the first fixing plate. An acrylic shell is fixedly installed on the upper end of the front surface of the second fixing plate. A through hole is provided at the middle of the bottom of the acrylic shell. A letter ball is placed in the inner cavity of the acrylic shell. A fixing box is fixedly installed on the bottom of the outer surface of the acrylic shell. A transparent guide tube is fixedly installed between the bottom of the fixing box and the upper right side of the acrylic shell. A rotating shaft is movably connected between the two sides of the fixing box through a bearing. A turntable is fixedly installed on the right end of the rotating shaft. The surface of the turntable is movably connected to the inner cavity of the fixing box. A receiving hole is provided on the top of the turntable. A high-definition camera is fixedly installed on the lower end of the front surface of the second fixing plate.

[0006] As a preferred embodiment, the upper end of the second fixed plate is movably connected to a horizontal shaft via a bearing. A stirring rod is fixedly mounted on the surface of the horizontal shaft, and a second synchronous pulley is fixedly mounted on the back of the horizontal shaft. A first bevel gear is fixedly mounted on the right end of the rotating shaft and to the right of the turntable. The lower end of the second fixed plate is movably connected to a rotating rod via a bearing. A second bevel gear is fixedly mounted on the front surface of the rotating rod, and the second bevel gear meshes with the first bevel gear. A first synchronous pulley is fixedly mounted on the back of the rotating rod. A synchronous belt is drivingly connected between the middle ends of the first and second synchronous pulleys. A protective cover is fixedly mounted on the back of the second fixed plate and behind the synchronous belt. The number of stirring rods is three, and the stirring rods are T-shaped.

[0007] As a preferred embodiment, the lower ends of both sides of the multimedia display screen are movably connected to support plates via bearings. The back of the support plates is fixedly installed on the lower end of the front surface of the first fixed plate. The upper end of the first fixed plate is provided with a receiving through groove. A fixed frame is fixedly installed on the upper end of the back of the first fixed plate. A drive motor is fixedly installed at the middle of the top of the outer surface of the fixed frame. An adjusting screw is fixedly installed at the output end of the drive motor. The bottom of the adjusting screw is movably connected to the bottom of the inner cavity of the fixed frame via bearings. A lifting plate is threadedly connected to the upper end of the adjusting screw. Adjusting push rods are hinged between the two ends of the bottom of the lifting plate and the two ends of the back of the multimedia display screen. Guide vertical rods are fixedly installed at both ends of the inner cavity of the fixed frame. The surface of the lifting plate is slidably connected to the surface of the guide vertical rods.

[0008] As a preferred embodiment, an air pump is fixedly installed on the left end of the back of the second fixing plate, and an air tube is fixedly installed between the output end of the air pump and the left end of the bottom of the transparent conduit. The microprocessor main control module is electrically connected to the air pump.

[0009] As a preferred embodiment, a filter cover is fixedly installed on the top of the air pump, and a non-woven fabric filter screen is fixedly installed on the top of the filter cover.

[0010] As a preferred embodiment, a support frame is fitted at the middle end of the transparent conduit, and the left end of the support frame is fixedly installed on the right end of the front surface of the second fixing plate.

[0011] As a preferred embodiment, a first reinforcing plate is fixedly connected to the lower end of the back of the first fixing plate, a second reinforcing plate is fixedly connected to the lower end of the back of the second fixing plate, and a platform is fixedly installed between the bottom of the first fixing plate and the bottom of the second fixing plate.

[0012] As a preferred embodiment, a handwheel is fixedly installed on the left side of the rotating shaft.

[0013] As a preferred embodiment, the number of letter balls is twenty-six.

[0014] As a preferred embodiment, the high-definition camera is electrically connected to the image recognition module, the microphone is electrically connected to the voice recognition module, and the microprocessor main control module is electrically connected to the image recognition module, the word database module, the voice recognition module, the sentence processing verification module, the multimedia display screen, and the LED light strip, respectively.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention engages students in learning through the physical action of manually cranking a rotating shaft. Combined with the visual presentation of letter balls, the display of a word list, voice interaction for sentence construction, and color feedback from LED light strips, it fully mobilizes students' tactile, visual, and auditory senses. This interactive mechanism, deeply integrating physical operation with intelligent feedback, greatly enhances the fun of learning and students' participation, transforming word memorization and sentence pattern practice from passive acceptance to active exploration. A high-definition camera and image recognition module capture and identify letters, a voice recognition module quickly converts students' spoken language into text, and a sentence processing and verification module ultimately verifies the text. This entire process is completed automatically in a very short time, providing real-time and accurate feedback for students' sentence construction practice. This effectively solves the problem of delayed feedback in traditional teaching, allowing students to recognize and correct errors on the spot, greatly improving learning efficiency and memory consolidation. Because the entire teaching process requires no manual intervention from the teacher, students can repeatedly operate the device to extract new letters and conduct multiple rounds of practice. The device engages multiple senses, including sight, hearing, and touch, greatly enhancing the fun and efficiency of student learning.

[0016] 2. In this invention, during the process of students manipulating the rotating shaft, the first and second bevel gears drive the rotating rod and the first synchronous wheel to rotate. The rotation of the first synchronous wheel drives the second synchronous wheel, the horizontal shaft, and the stirring rod to rotate via the synchronous belt. Under the action of the rotating rod, the letter balls inside the acrylic shell are stirred, effectively increasing the randomness of the letter balls falling and improving the overall interactive effect. The protective cover can provide safety protection around the first synchronous wheel, the second synchronous wheel, and the synchronous belt.

[0017] 3. This invention, through the design of the accommodating slot, can accommodate the adjusting push rod. The guide rod guides the lifting plate, preventing it from tilting or shifting due to force during movement. The support plate supports the multimedia display screen at the lower end of the first fixed plate. Through the drive motor, adjusting screw, lifting plate, and adjusting push rod, when the multimedia display screen needs to be adjusted to the optimal viewing angle, the external controller operates the drive motor to rotate the adjusting screw. Simultaneously, the rotating adjusting screw moves the lifting plate downwards, and the adjusting push rod pushes the multimedia display screen to rotate along the bearing on the support plate. This achieves the effect of adjusting the viewing angle of the multimedia display screen, improving the viewing experience. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the present invention. Figure 3 This is a schematic diagram of the back structure of the first fixing plate of the present invention; Figure 4 This is a schematic diagram of the back structure of the second fixing plate of the present invention; Figure 5 This is a schematic diagram of the front cross-sectional structure of the acrylic shell of the present invention; Figure 6 This is a schematic diagram of the turntable structure of the present invention; Figure 7 This is a schematic cross-sectional view of the back of the fixing frame of the present invention.

[0019] In the diagram: 1. First fixing plate; 2. Second fixing plate; 3. Platform; 4. Microphone; 5. Multimedia display screen; 6. LED light strip; 7. Acrylic shell; 8. Fixing box; 9. Rotating shaft; 10. Handwheel; 11. Electrical box; 12. Image recognition module; 13. Microprocessor main control module; 14. Word database module; 15. Speech recognition module; 16. Sentence processing and verification module; 17. First reinforcing plate; 18. Second reinforcing plate; 19. Air pump; 20. Air pipe; 21. Filter cover; 22. Protective equipment. 23. Cover; 24. Rotating rod; 25. First synchronous pulley; 26. Synchronous belt; 27. Second synchronous pulley; 28. Transparent guide tube; 29. ​​Support frame; 30. Through hole; 31. Turntable; 32. Receiving hole; 33. High-definition camera; 34. Letter ball; 35. Horizontal shaft; 36. Stirring rod; 37. First bevel gear; 38. Second bevel gear; 39. Support plate; 40. Fixed frame; 41. Drive motor; 42. Adjusting screw; 43. Lifting plate; 44. Adjusting push rod; 45. Receiving through groove; 46. Guide vertical rod. Detailed Implementation

[0020] 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.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example

[0022] Please see Figures 1-7 As shown, this invention provides a novel intelligent teaching device for smart classrooms, including a first fixing plate 1. An LED light strip 6 is fixedly installed on the upper end of the front surface of the first fixing plate 1, and a microphone 4 is fixedly installed on the lower end of the front surface of the first fixing plate 1. A multimedia display screen 5 is arranged in front of the first fixing plate 1, and an electrical box 11 is fixedly installed in the middle of the back of the first fixing plate 1. From left to right, the inner cavity of the electrical box 11 sequentially houses an image recognition module 12, a microprocessor main control module 13, a word database module 14, a speech recognition module 15, and a sentence processing verification module 16. A second fixing plate 2 is arranged to the left of the first fixing plate 1. An acrylic shell 7 is fixedly installed on the upper end of the front surface of the fixed plate 2. A through hole 29 is provided at the middle of the bottom of the acrylic shell 7. A letter ball 33 is placed in the inner cavity of the acrylic shell 7. A fixed box 8 is fixedly installed on the bottom of the outer surface of the acrylic shell 7. A transparent guide tube 27 is fixedly installed between the bottom of the fixed box 8 and the upper right side of the acrylic shell 7. A rotating shaft 9 is movably connected between the two sides of the fixed box 8 through a bearing. A turntable 30 is fixedly installed on the right end of the rotating shaft 9. The surface of the turntable 30 is movably connected to the inner cavity of the fixed box 8. A receiving hole 31 is provided on the top of the turntable 30. A high-definition camera 32 is fixedly installed on the lower end of the front surface of the second fixed plate 2.

[0023] In this technical solution, during interactive teaching, students manually crank the rotating shaft 9, causing the turntable 30 to rotate within the fixed box 8. Simultaneously, the letter balls 33 inside the acrylic shell 7, under the influence of gravity, can randomly fall through the through-hole 29 into the receiving hole 31 of the turntable 30. As the turntable 30 rotates, the letter balls 33 can fall into the transparent guide tube 27. Meanwhile, the high-definition camera 32 can capture clear images of the letter balls 33 in real time and transmit them to the image recognition module 12 for letter character recognition and extraction. The microprocessor main control module 13 receives the character and queries the word database module 14 for recently learned words containing that letter. The matching word list is then displayed on the multimedia display screen 5 for students to select via touch. When students select a word and verbally construct a sentence, the microphone 4 can capture... Simultaneously with the audio signal, the speech recognition module 15 converts the audio signal into an English text string, which is then displayed on the multimedia display screen 5 by the microprocessor main control module 13 for students' convenience. The microprocessor main control module 13 also sends the English text to the sentence processing and verification module 16 for grammatical and logical verification. The verification results are fed back to the microprocessor main control module 13. When the sentence is correctly formed, the microprocessor main control module 13 controls the LED strip 6 to light up green; otherwise, it lights up red. The error is also marked on the multimedia display screen 5 to guide students in correction. Because the entire teaching process requires no manual intervention from the teacher, students can repeatedly operate the device to extract new letters and practice multiple times. The device engages multiple senses, including sight, hearing, and touch, greatly enhancing the fun and efficiency of student learning.

[0024] It should be noted that the twenty-six letter balls 33 correspond to the twenty-six letters of the English alphabet, and the same English letter is marked in each of the six positions of each letter ball 33. Example

[0025] Based on Embodiment 1, the present invention is as follows: Figures 1-5 As shown, the upper end of the second fixed plate 2 is movably connected to a horizontal shaft 34 via a bearing. A stirring rod 35 is fixedly mounted on the surface of the horizontal shaft 34. A second synchronous wheel 26 is fixedly mounted on the back of the horizontal shaft 34. A first bevel gear 36 is fixedly mounted on the right end of the rotating shaft 9 and to the right of the turntable 30. The lower end of the second fixed plate 2 is movably connected to a rotating rod 23 via a bearing. A second bevel gear 37 is fixedly mounted on the front surface of the rotating rod 23 and meshes with the first bevel gear 36. A first synchronous wheel 24 is fixedly mounted on the back of the rotating rod 23. A synchronous belt 25 is drivingly connected between the middle end of the first synchronous wheel 24 and the middle end of the second synchronous wheel 26. A protective cover 22 is fixedly mounted on the back of the second fixed plate 2 and behind the synchronous belt 25. There are three stirring rods 35, and the stirring rods 35 are T-shaped.

[0026] In this technical solution, during the rotation of the rotating shaft 9 operated by the student, the rotating rod 23 and the first synchronous wheel 24 are driven to rotate via the first bevel gear 36 and the second bevel gear 37. The rotation of the first synchronous wheel 24 drives the second synchronous wheel 26, the horizontal shaft 34 and the stirring rod 35 to rotate via the synchronous belt 25. Under the action of the rotating rod 35, the letter balls 33 inside the acrylic shell 7 are stirred, which effectively increases the randomness of the letter balls 33 falling and improves the overall interactive effect. The protective cover 22 can provide safety protection for the area around the first synchronous wheel 24, the second synchronous wheel 26 and the synchronous belt 25.

[0027] It should be noted that the transmission ratio between the first bevel gear 36 and the second bevel gear 37 is 1:2, and the transmission ratio between the first synchronous pulley 24 and the second synchronous pulley 26 is 1:1. Example

[0028] Based on Embodiment 1, the present invention is as follows: Figure 1 , Figure 3 and Figure 7 As shown, the lower ends of both sides of the multimedia display screen 5 are movably connected to support plates 38 via bearings. The back of the support plates 38 is fixedly installed on the lower end of the front surface of the first fixed plate 1. The upper end of the first fixed plate 1 is provided with a receiving through groove 44. The upper end of the back of the first fixed plate 1 is fixedly installed with a fixed frame 39. The middle of the top of the outer surface of the fixed frame 39 is fixedly installed with a drive motor 40. The output end of the drive motor 40 is fixedly installed with an adjusting screw 41. The bottom of the adjusting screw 41 is movably connected to the bottom of the inner cavity of the fixed frame 39 via bearings. The upper end of the adjusting screw 41 is threadedly connected with a lifting plate 42. The two ends of the bottom of the lifting plate 42 are hinged to the two ends of the back of the multimedia display screen 5 with adjusting push rods 43. The two ends of the inner cavity of the fixed frame 39 are fixedly installed with guide rods 45. The surface of the lifting plate 42 is slidably connected to the surface of the guide rods 45.

[0029] In this technical solution, the through slot 44 accommodates the adjusting push rod 43, and the guide rod 45 guides the lifting plate 42, preventing it from tilting or shifting due to force during movement. The support plate 38 supports the multimedia display screen 5 at the lower end of the first fixed plate 1. Through the drive motor 40, adjusting screw 41, lifting plate 42, and adjusting push rod 43, when the multimedia display screen 5 needs to be adjusted to the optimal viewing angle, the external controller controls the drive motor 40 to rotate the adjusting screw 41. The rotation of the adjusting screw 41 moves the lifting plate 42 downwards, and the adjusting push rod 43 pushes the multimedia display screen 5 to rotate along the bearing on the support plate 38, thus achieving the effect of adjusting the viewing angle of the multimedia display screen 5 and improving the viewing effect. Example

[0030] Based on Embodiment 1, the present invention is as follows: Figure 4 and Figure 5 As shown, an air pump 19 is fixedly installed on the left end of the back of the second fixed plate 2. An air pipe 20 is fixedly installed between the output end of the air pump 19 and the left end of the bottom of the transparent conduit 27. The microprocessor main control module 13 is electrically connected to the air pump 19. A filter cover 21 is fixedly installed on the top of the air pump 19. A non-woven filter screen is fixedly installed on the top of the filter cover 21.

[0031] In this technical solution, by setting up the air pump 19, while the microprocessor main control module 13 controls the LED light strip 6 to light up, it can also control the air pump 19 to work. Under the action of the air pump 19, air can be driven through the air tube 20 to blow into the transparent tube 27 quickly. This causes the letter ball 33 at the lower end of the transparent tube 27 to move upward along the inside of the transparent tube 27 under the push of the airflow and fall into the acrylic shell 7, so that the subsequent English interactive teaching can continue. Through the setting of the filter cover 21 and the non-woven filter, the dust and hair in the air drawn by the air pump 19 can be filtered, improving the cleanliness of the delivered air.

[0032] It should be noted that: First, the single control operation time of the air pump 19 is 15 seconds; Second, the upper end of the second fixing plate 2 is provided with air holes to facilitate the discharge of the blown airflow; Third, the letter ball 33 is made of foam material, which has a light weight and is conducive to the blowing of airflow. Example

[0033] Based on Embodiment 1, the present invention is as follows: Figures 1-6 As shown, a support frame 28 is sleeved at the middle end of the transparent conduit 27. The left end of the support frame 28 is fixedly installed on the right end of the front surface of the second fixed plate 2. A first reinforcing plate 17 is fixedly connected to the lower end of the back of the first fixed plate 1, and a second reinforcing plate 18 is fixedly connected to the lower end of the back of the second fixed plate 2. A platform 3 is fixedly installed between the bottom of the first fixed plate 1 and the bottom of the second fixed plate 2. A handwheel 10 is fixedly installed on the left side of the rotating shaft 9. There are twenty-six letter balls 33. The high-definition camera 32 is electrically connected to the image recognition module 12. The microphone 4 is electrically connected to the voice recognition module 15. The microprocessor main control module 13 is electrically connected to the image recognition module 12, the word database module 14, the voice recognition module 15, the sentence processing verification module 16, the multimedia display screen 5, and the LED light strip 6, respectively.

[0034] In this technical solution, the support frame 28 is used to support and fix the middle end of the transparent guide tube 27. The first reinforcing plate 17 and the second reinforcing plate 18 are used to reinforce and fix the lower ends of the first fixing plate 1 and the second fixing plate 2, respectively. The platform 3 is used to support the whole structure. The handwheel 10 is used to facilitate the operation of the rotating shaft 9 by personnel.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A novel intelligent teaching device for smart classrooms, comprising a first fixed plate (1), characterized in that: An LED light strip (6) is fixedly installed on the upper end of the front surface of the first fixing plate (1), a microphone (4) is fixedly installed on the lower end of the front surface of the first fixing plate (1), a multimedia display screen (5) is provided in front of the first fixing plate (1), an electrical box (11) is fixedly installed in the middle of the back of the first fixing plate (1), and an image recognition module (12), a microprocessor main control module (13), a word database module (14), a speech recognition module (15), and a sentence processing verification module (16) are fixedly installed in the inner cavity of the electrical box (11) from left to right. A second fixing plate (2) is provided on the left side of the first fixing plate (1), and an acrylic shell (7) is fixedly installed on the upper end of the front surface of the second fixing plate (2). The acrylic shell (7) has a through hole (29) at the middle of its bottom. The inner cavity of the acrylic shell (7) contains a letter ball (33). A fixed box (8) is fixedly installed on the bottom of the outer surface of the acrylic shell (7). A transparent guide tube (27) is fixedly installed between the bottom of the fixed box (8) and the upper right side of the acrylic shell (7). A rotating shaft (9) is movably connected between the two sides of the fixed box (8) through a bearing. A turntable (30) is fixedly installed on the right end of the rotating shaft (9). The surface of the turntable (30) is movably connected to the inner cavity of the fixed box (8). A receiving hole (31) is provided on the top of the turntable (30). A high-definition camera (32) is fixedly installed on the lower end of the front surface of the second fixed plate (2).

2. The novel intelligent teaching device for smart classrooms according to claim 1, characterized in that: The upper end of the second fixed plate (2) is movably connected to a horizontal shaft (34) via a bearing. A stirring rod (35) is fixedly installed on the surface of the horizontal shaft (34). A second synchronous pulley (26) is fixedly installed on the back of the horizontal shaft (34). A first bevel gear (36) is fixedly installed on the right end of the rotating shaft (9) and to the right of the turntable (30). The lower end of the second fixed plate (2) is movably connected to a rotating rod (23) via a bearing. A second bevel gear is fixedly installed on the front surface of the rotating rod (23). (37) The second bevel gear (37) meshes with the first bevel gear (36). The back of the rotating rod (23) is fixedly installed with a first synchronous pulley (24). The middle end of the first synchronous pulley (24) and the middle end of the second synchronous pulley (26) are connected by a synchronous belt (25). The back of the second fixed plate (2) and behind the synchronous belt (25) are fixedly installed with a protective cover (22). The number of stirring rods (35) is three, and the shape of the stirring rods (35) is T-shaped.

3. The novel intelligent teaching device for smart classrooms according to claim 1, characterized in that: The lower ends of both sides of the multimedia display screen (5) are movably connected to support plates (38) via bearings. The back of the support plates (38) is fixedly installed on the lower end of the front surface of the first fixed plate (1). The upper end of the first fixed plate (1) is provided with a receiving through groove (44). The upper end of the back of the first fixed plate (1) is fixedly installed with a fixed frame (39). The middle of the top of the outer surface of the fixed frame (39) is fixedly installed with a drive motor (40). The output end of the drive motor (40) is fixedly installed with an adjusting screw (41). The bottom of the adjusting screw (41) is movably connected to the bottom of the inner cavity of the fixed frame (39) via bearings. The upper end of the adjusting screw (41) is threadedly connected with a lifting plate (42). The two ends of the bottom of the lifting plate (42) are hinged to the two ends of the back of the multimedia display screen (5) with adjusting push rods (43). The two ends of the inner cavity of the fixed frame (39) are fixedly installed with guide rods (45). The surface of the lifting plate (42) is slidably connected to the surface of the guide rods (45).

4. The novel intelligent teaching device for smart classrooms according to claim 1, characterized in that: An air pump (19) is fixedly installed on the left end of the back of the second fixing plate (2). An air tube (20) is fixedly installed between the output end of the air pump (19) and the left end of the bottom of the transparent conduit (27). The microprocessor main control module (13) is electrically connected to the air pump (19).

5. The novel intelligent teaching device for smart classrooms according to claim 4, characterized in that: A filter cover (21) is fixedly installed on the top of the air pump (19), and a non-woven filter screen is fixedly installed on the top of the filter cover (21).

6. The novel intelligent teaching device for smart classrooms according to claim 1, characterized in that: The transparent conduit (27) is fitted with a support frame (28) at its middle end, and the left end of the support frame (28) is fixedly installed on the right end of the front surface of the second fixing plate (2).

7. The novel intelligent teaching device for smart classrooms according to claim 1, characterized in that: A first reinforcing plate (17) is fixedly connected to the lower end of the back of the first fixing plate (1), and a second reinforcing plate (18) is fixedly connected to the lower end of the back of the second fixing plate (2). A platform (3) is fixedly installed between the bottom of the first fixing plate (1) and the bottom of the second fixing plate (2).

8. The novel intelligent teaching device for smart classrooms according to claim 1, characterized in that: A handwheel (10) is fixedly installed on the left side of the rotating shaft (9).

9. A novel intelligent teaching device for smart classrooms according to claim 1, characterized in that: The number of the letter balls (33) is twenty-six.

10. A novel intelligent teaching device for smart classrooms according to claim 1, characterized in that: The high-definition camera (32) is electrically connected to the image recognition module (12), the microphone (4) is electrically connected to the voice recognition module (15), and the microprocessor main control module (13) is electrically connected to the image recognition module (12), the word database module (14), the voice recognition module (15), the sentence processing verification module (16), the multimedia display screen (5), and the LED light strip (6), respectively.

Images