A smart classroom interactive teaching platform

Abstract

The present invention discloses a smart classroom interactive teaching platform, including a base and a mounting platform, wherein two moving wheels are installed at both ends of the bottom of the base by screws, and the mounting platform is fixedly installed on the top of the base, and also includes: a sleeve is installed on the upper screw of the mounting platform, and the internal slot of the sleeve penetrates through the sliding installation of a lifting platform, and the upper screw of the lifting platform is installed with a mounting plate. The smart classroom interactive teaching platform uses slots at both ends of the top of the first display screen to rotate and install limit blocks through the first extrusion spring. When the two second display screens are pulled to move their positions, the two first extrusion springs will automatically pop out the two limit blocks into a row of limit slots opened on the outside of the two rows of second display screens through their own elastic force. At this time, the two second display screens can be slidably limited to avoid the phenomenon of misalignment and offset of the two second display screens during teaching in the later stage.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching platforms, and in particular to a smart classroom interactive teaching platform. Background Art

[0002] Smart classroom refers to the use of advanced information technology and educational technology to combine traditional teaching with modern technology to create an intelligent, interactive and personalized teaching environment. It not only enriches teaching resources and learning tools, but also promotes interaction and cooperation between teachers and students, thereby improving teaching effectiveness. The smart classroom interactive teaching platform is an interactive intelligent learning system based on integrated multimedia, which aims to achieve in-depth interaction between teachers, students and lectures. The platform uses new generation information technologies such as big data, cloud computing, the Internet of Things and mobile Internet to break the traditional one-way teaching model and build a dynamic, open and personalized learning environment;

[0003] Because it can improve teaching efficiency, enhance learning experience, promote educational equity and support precision teaching, it is widely used in various educational institutions, including primary and secondary schools, colleges and universities, training institutions and other fields;

[0004] In the "A Smart Classroom Interactive Teaching Platform" with the patent publication CN111271580A, it includes a base, a first servo motor and a second servo motor. A support plate is welded on the top of the base, and a pulley is connected to the inner bearing of the support plate. The output end of the first servo motor is connected to the right end of the pulley, and a conveyor belt is provided on the outer side of the pulley. An adjustment plate runs through the inside of the support plate, and a rotating rod is connected to the internal bearing of the adjustment plate. The left end of the rotating rod is keyed to a bevel gear group, and the internal key of the bevel gear group is connected to a first screw rod. The first screw rod drives the outer thread to be connected to a connecting rod, and a card is welded to the outer side of the connecting rod. The rotation of the second screw rod of the smart classroom interactive teaching platform can drive the moving seat to move, thereby controlling the rotation of the rotating shaft, storing the roller into the storage slot or removing the roller from the storage slot, which is convenient for moving the entire device and can also ensure the stability of the entire device when it is not moving.

[0005] In the "A Smart Classroom Interactive Teaching Platform" with the patent publication CN113192388A, it includes a bottom plate, an adjustment mechanism, an operating mechanism, a storage mechanism, a marking mechanism, a support mechanism and a storage mechanism; when in use, the adjustment mechanism is arranged on one side of the top of the bottom plate, and the corresponding engaging transmission assembly is used to facilitate manual adjustment of the operating mechanism anytime and anywhere during use. Furthermore, for the operating mechanism, the corresponding separation assembly is used to facilitate arbitrary switching of the teaching platform, making it more convenient to use; the support mechanism is arranged inside the operating mechanism, and the corresponding gear meshing transmission assembly is used to facilitate the construction of a platform for placing teaching tools when needed, making it more convenient to use; the storage mechanism is arranged on one side of the top of the bottom plate, and the corresponding slider assembly and storage assembly are used to facilitate the long-term placement of teaching tools during use, making it more convenient to use;

[0006] In the "A Smart Classroom Interactive Teaching Platform" with the patent publication CN213900579U, it includes a display screen fixing frame, a display screen and a moving wheel. The upper convex block seat and the lower convex block seat are fixedly connected together by a plurality of screws and the two are arranged in a rotating state through an upper bearing and a lower bearing. A transmission gear is matched with the teeth on the right end position of the annular transmission gear block in the form of a gear gear block transmission. The transmission gear is driven by a first servo motor to work, and the end tail of the adjustment support arm is rotatably hinged with the top end of the deflection arm. The bottom end of the deflection arm is correspondingly rotatably hinged to the top end of the internal threaded sleeve. An external threaded screw is adapted to be inserted into the internal threaded blind hole of the internal threaded sleeve in the form of a threaded screw meshing. The external threaded screw is driven by a second servo motor at the bottom. The angle of the display screen can be adjusted according to actual needs, and the entire display screen can be rotated in a circle to face students in different directions.

[0007] When teaching students, most of the existing smart classroom interactive teaching platforms use display screens to teach students. However, the display range of a single display screen is limited, which will reduce the teaching efficiency in the later stage, increase the teaching burden of teachers, and make it inconvenient for the stable teaching use of the later teaching platform.

[0008] Therefore, we proposed a smart classroom interactive teaching platform to solve the above problems. Summary of the invention

[0009] The purpose of the present invention is to provide a smart classroom interactive teaching platform to solve the problem raised by the above background technology that most of the existing smart classroom interactive teaching platforms on the market teach students through display screens, but the display range of a single display screen is limited, which will lead to reduced teaching efficiency in the later stage, increase the teaching burden of teachers, and make it inconvenient for the stable teaching use of the later teaching platform.

[0010] To achieve the above-mentioned object, the present invention provides the following technical solutions: A smart classroom interactive teaching platform, comprising a base and a mounting table, wherein two moving wheels are mounted on both ends of the bottom of the base by screws, and the mounting table is fixedly mounted on the top of the base;

[0011] The mounting platform has hinges at both ends of the front side with closed doors, and the two closed doors are symmetrically arranged about the vertical center line of the mounting platform, and both sides of the upper side of the mounting platform are slotted through and slideably mounted with drawers;

[0012] It also includes: a sleeve is installed on the upper screw of the mounting platform, and the internal slot of the sleeve penetrates and slides to install a lifting platform, a mounting plate is installed on the upper screw of the lifting platform, and a control switch is arranged on the upper part of the mounting platform, hooks are installed on the screws at both ends of the bottom of the mounting plate, and the two hooks have the same structure, and a first display screen is placed above the two hooks, and the first display screen is arranged on the front side of the mounting plate;

[0013] Both ends of the interior of the first display screen are grooved and penetrated to slide and install the second display screen, and the two second display screens extend to the outside of both ends of the first display screen, and the two second display screens are symmetrically arranged about the vertical center line of the first display screen, and the top two ends of the first display screen are rotatably installed with shafts, and the inner ends of the two shafts extend to the inner ends of the first display screen, and the outer ends of the two shafts penetrate and connect to the limiting blocks.

[0014] Preferably, both ends of the interior of the first display screen are grooved to rotatably install limit blocks, and the two limit blocks are both arc-shaped, and the outer sides of the two limit blocks are connected to the second display screen through a row of limit grooves, and the two rows of limit grooves are equally spaced on the outer sides of the two second display screens.

[0015] Preferably, both ends of the first display screen are grooved to provide first extrusion springs, the two first extrusion springs have the same structure, and the outer ends of the two first extrusion springs are connected to limiting blocks.

[0016] Preferably, the interiors of the two limit blocks are both grooved with torsion springs, and the inner sides of the two torsion springs are both wound and connected with a rotating shaft.

[0017] Preferably, the tops of the two second display screens are connected with pull ropes, and the outer ends of the two pull ropes are connected with rotating rods through guide wheels. The two rotating rods are rotatably installed inside the two alarms through return springs, and the two alarms are symmetrically installed at both ends of the top of the first display screen.

[0018] Preferably, a beating rod is installed through the outer sides of the two rotating rods, and a sound tube is correspondingly provided on the outer sides of the two beating rods, and the two sound tubes are installed inside the two alarms.

[0019] Preferably, both sides of the top of the first display screen are clamped and connected with positioning clamps, and the positioning clamps are in an inverted "L" shape, and the positioning clamps are slidably mounted on both ends of the mounting plate through second extrusion springs;

[0020] A positioning clamping plate, wherein the bottom inner side of the bottom of the clamping plate is slotted and slidably mounted with the positioning plate, the inner side of the positioning plate is fitted with the first display screen, and the inner slot of the positioning clamping plate is slotted and rotatably mounted with a threaded rod, and the outer side of the threaded rod is threadedly connected with the positioning plate;

[0021] An installation plate is provided with an air storage bag on top thereof, and the bottom of the air storage bag is sealed and connected to an air inlet through a hose, and the air inlet is opened on the inner side of the top of the positioning plate, and the bottom of the air inlet is sealed and connected to a row of exhaust ports, and the row of exhaust ports are opened at equal intervals on the outer side of the bottom of the positioning plate.

[0022] Preferably, a driving motor is installed in a groove inside the left side of the sleeve, and a rotating gear is connected through the output end of the driving motor, and the rotating gear is rotatably installed inside the left side of the sleeve.

[0023] Preferably, a row of gear blocks are meshedly connected to the outer side of the rotating gear, and the row of gear blocks are arranged at equal intervals on the outer side of the lifting platform.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) A second display screen is provided, and the second display screen is installed by sliding through the grooves at both ends of the first display screen. When the display range of the first display screen needs to be expanded, the two second display screens only need to be manually pulled to slide through the two ends of the first display screen, thereby expanding the display range of the first display screen, improving teaching efficiency, and making it more convenient for the stable teaching use of the later teaching platform;

[0026] (2) Furthermore, by using the slots at both ends of the top of the first display screen to rotate and install the limit blocks through the first extrusion spring, when the two second display screens are pulled to move, the two first extrusion springs will automatically pop out the two limit blocks to a row of limit slots opened on the outside of the two rows of second display screens through their own elastic force. At this time, the two second display screens can be slidably limited, avoiding the phenomenon of misalignment and offset of the two second display screens during later teaching, thereby improving the teaching stability of the teaching platform;

[0027] (3) A pull rope is provided at the top outer end of the second display screen, and then the two pull ropes are wound around the outer sides of the two rotating rods through guide wheels. When the two second display screens are pulled to move, the two pull ropes are pulled through the guide wheels to rotate the two rotating rods. At this time, the two rotating rods will simultaneously drive the two beating rods to reciprocately beat the two sound tubes, so that the two sound tubes make sounds to remind students to concentrate, thereby improving the teaching efficiency of the teaching platform;

[0028] (4) A positioning clamp is provided, and hooks are installed at both ends of the bottom of the mounting plate by screws. Then, the first display screen is placed on top of the positioning clamp, and then the top ends of the first display screen are clamped and positioned by the positioning clamp. The first display screen can be clamped and positioned by the positioning clamp to prevent the first display screen from shaking and falling during teaching. Then, the positioning clamp can be separated from the first display screen by pulling the handle, and then the first display screen can be quickly disassembled and replaced, which saves time and effort.

[0029] (5) A rotating gear is provided, and the rotating gear is rotatably installed by opening a groove inside the left side of the sleeve, and then a driving motor is connected to the output end of the rotating gear. When the display height of the first display screen needs to be adjusted, the driving motor can be driven by the control switch to drive the rotating gear to rotate. At this time, the rotating rotating gear will drive the lifting platform to move up and down through the gear block, so that the height of the first display screen can be adjusted. It is more practical and does not require complicated steps such as manual adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the three-dimensional structure after the first display screen and the second display screen of the present invention are unfolded;

[0032] Figure 3 It is a schematic diagram of the top-sectional structure of the first display screen and the second display screen of the present invention;

[0033] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of the first display screen and the second display screen of the present invention;

[0035] Figure 6 This is a schematic diagram of the main cross-sectional structure of the alarm of the present invention;

[0036] Figure 7 It is a schematic diagram of the top-sectional structure of the alarm and the reset spring of the present invention;

[0037] Figure 8 It is a schematic diagram of the three-dimensional structure after the installation plate and the positioning clamp plate of the present invention are moved;

[0038] Fig. 9 It is a schematic diagram of the partial main cross-section structure of the sleeve and the lifting platform of the present invention;

[0039] Fig.10 For the present invention Fig. 9 The enlarged structural diagram at B in the middle;

[0040] Fig.11 It is a schematic diagram of the top-sectional structure of the positioning splint and the positioning plate of the present invention;

[0041] Fig.12 It is a schematic diagram of the three-dimensional structure of the positioning plate and the exhaust port of the present invention.

[0042] In the figure: 1. base; 2. moving wheel; 3. mounting platform; 4. closing door; 5. drawer; 6. sleeve; 7. lifting platform; 8. mounting plate; 9. hook; 10. positioning splint; 11. handle; 12. first display screen; 13. second display screen; 14. alarm; 15. rotating shaft; 16. pull rope; 17. limit block; 18. limit groove; 19. first extrusion spring; 20. torsion spring; 21. rotating rod; 22. slapping rod; 23. sound tube; 24. reset spring; 25. second extrusion spring; 26. tooth block; 27. rotating gear; 28. driving motor; 29. ​​air storage bag; 30. positioning plate; 31. threaded rod; 32. air inlet; 33. exhaust port. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The present invention provides the following technical solutions:

[0045] Embodiment 1, in order to solve the problem that the display range of the existing teaching platform is limited and the display range cannot be adjusted during teaching display, which will lead to a decrease in teaching quality, discloses:

[0046] A base 1 and a mounting platform 3, wherein two moving wheels 2 are mounted on both ends of the bottom of the base 1 by screws, and a mounting platform 3 is fixedly mounted on the top of the base 1;

[0047] The mounting platform 3 has hinges at both ends of the front side thereof with closing doors 4, and the two closing doors 4 are symmetrically arranged about the vertical center line of the mounting platform 3, and both sides of the upper side of the mounting platform 3 are slotted through which drawers 5 are slidably installed;

[0048] The device also includes: a sleeve 6 is screwed on the top of the mounting platform 3, and a lifting platform 7 is slidably mounted through the internal slot of the sleeve 6, a mounting plate 8 is screwed on the top of the lifting platform 7, and a control switch is arranged on the top of the mounting platform 3, hooks 9 are screwed on both ends of the bottom of the mounting plate 8, and the two hooks 9 have the same structure, and a first display screen 12 is placed above the two hooks 9, and the first display screen 12 is arranged on the front side of the mounting plate 8;

[0049] Both ends of the interior of the first display screen 12 are grooved and penetrated to slideably install the second display screen 13, and the two second display screens 13 penetrate and extend to the outer sides of both ends of the first display screen 12, and the two second display screens 13 are symmetrically arranged about the vertical center line of the first display screen 12, and the top two ends of the first display screen 12 are rotatably installed with shafts 15, and the inner ends of the two shafts 15 penetrate and extend to the inner ends of the first display screen 12, and the outer ends of the two shafts 15 penetrate and connect the limiting blocks 17.

[0050] Both ends of the interior of the first display screen 12 are grooved to rotatably install limit blocks 17, and the two limit blocks 17 are in an arc shape, and the outer sides of the two limit blocks 17 are connected to the second display screen 13 through a row of limit grooves 18. At the same time, the two rows of limit grooves 18 are arranged at equal intervals on the outer sides of the two second display screens 13. Both ends of the interior of the first display screen 12 are grooved to provide first extrusion springs 19, and the two first extrusion springs 19 have the same structure, and the outer ends of the two first extrusion springs 19 are connected to the limit blocks 17.

[0051] The inside of the two limit blocks 17 are grooved with torsion springs 20, and the inner sides of the two torsion springs 20 are wound with the rotating shaft 15, the tops of the two second display screens 13 are connected to pull ropes 16, and the outer ends of the two pull ropes 16 are connected to rotating rods 21 through guide wheels, the two rotating rods 21 are rotatably installed inside the two alarms 14 through reset springs 24, and the two alarms 14 are symmetrically installed at the top ends of the first display screen 12, the outer sides of the two rotating rods 21 are penetrated by beating rods 22, and the outer sides of the two beating rods 22 correspond to sound tubes 23, and the two sound tubes 23 are installed inside the two alarms 14.

[0052] like Figure 1-Figure 4 As shown, when the display range of the first display screen 12 needs to be adjusted, the limiting mechanism is first opened to separate the first display screen 12 from the two second display screens 13, and then only the two second display screens 13 are pulled through the two ends of the first display screen 12 to slide through, thereby expanding the display range of the first display screen 12. While the two second display screens 13 are sliding through, the two first extrusion springs 19 will automatically pop out the two limiting blocks 17 into the two rows of limiting grooves 18 by their own elastic force, so that the two second display screens 13 can be slidably limited, avoiding the shaking and misalignment of the two second display screens 13 during teaching use in the later stage, thereby improving the use stability of the first display screen 12. After the teaching is finished, the two rotating shafts 15 are manually rotated to drive the two limiting blocks 17 to rotate, so that the limiting blocks 17 are separated from the limiting grooves 18. At this time, the two second display screens 13 can be stored at the two ends of the first display screen 12, which is more practical.

[0053] When the two second display screens 13 are pulled and extended, the two pull ropes 16 will be driven to pull the two rotating rods 21 through the guide wheels to rotate inside the two alarms 14. At this time, the two rotating rods 21 will drive the two beating rods 22 to beat the two sound tubes 23 to make sounds, so as to remind students to concentrate in time, thereby improving the teaching efficiency of the teaching platform.

[0054] Embodiment 2 is different from Embodiment 1 in that the first display screen 12 can be quickly disassembled and replaced, which saves time and effort. The following is disclosed:

[0055] Both sides of the top of the first display screen 12 are clamped and connected with positioning clamps 10, and the positioning clamps 10 are in an inverted "L" shape, and the positioning clamps 10 are slidably mounted on both ends of the mounting plate 8 through the second extrusion springs 25;

[0056] The positioning clamping plate 10 has a bottom inner groove on which a positioning plate 30 is slidably mounted, and the inner side of the positioning plate 30 is closely connected to the first display screen 12, and the inner groove of the positioning clamping plate 10 is rotatably mounted with a threaded rod 31, and the outer side of the threaded rod 31 is threadedly connected to the positioning plate 30;

[0057] The mounting plate 8 has an air storage bag 29 disposed on top thereof, and the bottom of the air storage bag 29 is sealed and connected to an air inlet 32 ​​through a hose, and the air inlet 32 ​​is opened on the inner side of the top of the positioning plate 30, and the bottom of the air inlet 32 ​​is sealed and connected to a row of exhaust ports 33, and the row of exhaust ports 33 are opened on the outer side of the bottom of the positioning plate 30 at equal intervals.

[0058] like Figure 1-Figure 8 As shown, when the first display screen 12 needs to be quickly disassembled and replaced, the handle 11 only needs to be manually pulled to drive the positioning clamping plate 10 to rise, so that the first display screen 12 is separated from the positioning clamping plate 10. At this time, the first display screen 12 can be quickly disassembled and replaced, and then the first display screen 12 is placed on the two hooks 9. Then, the two second extrusion springs 25 can automatically pop out the positioning clamping plate 10 to the top two sides of the first display screen 12 through their own elastic force, and the first display screen 12 can be quickly disassembled and replaced, which saves time and effort.

[0059] Manually rotating the threaded rod 31 can drive the positioning plate 30 to squeeze and move, so that the positioning plate 30 fits the first display screen. At this time, the position of the first display screen 12 after disassembly and assembly can be clamped and positioned, and it is also convenient to clamp and position the first display screens 12 of different sizes in the later stage.

[0060] While the positioning clamp 10 moves upward, the air storage bag 29 arranged on the front side of the mounting plate 8 will be squeezed to release air, so that the squeezed gas is sealed and transported to a row of exhaust ports 33 through the air inlet 32, and then the squeezed gas is blown onto the surface of the first display screen 12 through the row of exhaust ports 33, so as to achieve the effect of cleaning the surface of the first display screen 12, avoiding the complicated step of manually removing dust and impurities from the surface of the first display screen 12 in the later stage, and having better practicality.

[0061] Embodiment 3 is different from Embodiment 2 in that the display height of the first display screen 12 can be automatically adjusted without manual adjustment, which is more practical and saves manual labor. The following is disclosed:

[0062] A driving motor 28 is installed in the groove inside the left side of the sleeve 6, and the output end of the driving motor 28 is connected with a rotating gear 27. At the same time, the rotating gear 27 is rotatably installed inside the left side of the sleeve 6, and a row of tooth blocks 26 are meshed and connected to the outer side of the rotating gear 27, and a row of tooth blocks 26 are evenly spaced on the outer side of the lifting platform 7.

[0063] like Figure 1-Figure 10 As shown, when the teaching staff needs to adjust the teaching height of the first display screen 12, they only need to press the control switch to start the drive motor 28 to drive the rotating gear 27 to rotate. At this time, the rotating rotating gear 27 will drive the lifting platform 7 to move up and down through the tooth block 26, and then the DC electric brake of the motor can be used to limit and fix the position of the rotating gear 27 after rotation, so as to avoid the phenomenon that the two rotating gears 27 rotate during use and cause the first display screen 12 to be misaligned. Subsequently, the use height of the first display screen 12 can be adjusted without the need for complex steps such as manual adjustment, thus saving labor and improving practicality, thereby completing a series of tasks.

[0064] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A smart classroom interactive teaching platform, comprising a base (1) and a mounting platform (3), wherein two moving wheels (2) are mounted on both ends of the bottom of the base (1) by screws, and the mounting platform (3) is fixedly mounted above the base (1); The mounting platform (3) has hinges at both ends of the front side thereof with closing doors (4), and the two closing doors (4) are symmetrically arranged about the vertical center line of the mounting platform (3), and both sides of the upper side of the mounting platform (3) are slotted through which drawers (5) are slidably installed; It is characterized in that Also includes: The upper screw of the mounting platform (3) is installed with a sleeve (6), and the internal slot of the sleeve (6) penetrates and slides through a lifting platform (7), the upper screw of the lifting platform (7) is installed with a mounting plate (8), and a control switch is arranged above the mounting platform (3); Hooks (9) are screw-mounted at both ends of the bottom of the mounting plate (8), and the two hooks (9) have the same structure. A first display screen (12) is placed above the two hooks (9), and the first display screen (12) is arranged on the front side of the mounting plate (8); Both ends of the first display screen (12) are grooved and penetrated by second display screens (13) for sliding installation, and both second display screens (13) penetrate and extend to the outer sides of both ends of the first display screen (12), and the two second display screens (13) are symmetrically arranged about the vertical center line of the first display screen (12); Rotating shafts (15) are rotatably mounted at both ends of the top of the first display screen (12), and the inner ends of the two rotating shafts (15) extend through and extend to the inner ends of the first display screen (12), while the outer ends of the two rotating shafts (15) extend through and connect to the limiting blocks (17).

2. The smart classroom interactive teaching platform according to claim 1, characterized in that: Both ends of the first display screen (12) are grooved to rotatably mount limit blocks (17), and the two limit blocks (17) are both in an arc shape, and the outer sides of the two limit blocks (17) are connected to the second display screen (13) via a row of limit grooves (18), and the two rows of limit grooves (18) are arranged at equal intervals on the outer sides of the two second display screens (13).

3. The smart classroom interactive teaching platform according to claim 2 is characterized by: Both ends of the first display screen (12) are grooved to provide first extrusion springs (19), the two first extrusion springs (19) have the same structure, and the outer ends of the two first extrusion springs (19) are connected to limit blocks (17).

4. The smart classroom interactive teaching platform according to claim 3 is characterized by: The interiors of the two limit blocks (17) are both grooved and provided with torsion springs (20), and the inner sides of the two torsion springs (20) are both wound and connected with a rotating shaft (15).

5. The smart classroom interactive teaching platform according to claim 2, characterized in that: The top ends of the two second display screens (13) are connected to pull ropes (16), and the outer ends of the two pull ropes (16) are connected to rotating rods (21) through guide wheels. The two rotating rods (21) are rotatably installed inside the two alarms (14) through reset springs (24). At the same time, the two alarms (14) are symmetrically installed at the two ends of the top of the first display screen (12).

6. The smart classroom interactive teaching platform according to claim 5, characterized in that: The outer sides of the two rotating rods (21) are penetrated by a beating rod (22), and the outer sides of the two beating rods (22) are respectively provided with a sounding tube (23), and the two sounding tubes (23) are installed inside the two alarms (14).

7. The smart classroom interactive teaching platform according to claim 1, characterized in that: Both sides of the top of the first display screen (12) are clamped and connected with positioning clamps (10), and the positioning clamps (10) are in an inverted "L" shape, and the positioning clamps (10) are slidably mounted on both ends of the mounting plate (8) via second extrusion springs (25); A positioning clamp (10) having a bottom inner groove on which a positioning plate (30) is slidably mounted, and the inner side of the positioning plate (30) is fittedly connected to a first display screen (12), and a threaded rod (31) is rotatably mounted on the inner groove of the positioning clamp (10), and the outer side of the threaded rod (31) is threadedly connected to the positioning plate (30); The mounting plate (8) is provided with an air storage bag (29) above it, and the bottom of the air storage bag (29) is sealed and connected to an air inlet (32) through a hose, and the air inlet (32) is opened on the inner side of the top of the positioning plate (30), and the bottom of the air inlet (32) is sealed and connected to a row of exhaust ports (33), and the row of exhaust ports (33) are opened at equal intervals on the outer side of the bottom of the positioning plate (30).

8. The smart classroom interactive teaching platform according to claim 1, characterized in that: A driving motor (28) is installed in a groove inside the left side of the sleeve (6), and a rotating gear (27) is connected through the output end of the driving motor (28), and the rotating gear (27) is rotatably installed inside the left side of the sleeve (6).

9. The smart classroom interactive teaching platform according to claim 8, characterized in that: The outer side of the rotating gear (27) is meshedly connected with a row of tooth blocks (26), and the row of tooth blocks (26) are arranged at equal intervals on the outer side of the lifting platform (7).

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