Multimedia teaching device based on education

Abstract

The invention relates to the technical field of multimedia teaching, and provides a multimedia teaching device based on education, which comprises a teaching platform, a computer is mounted at one end of the top of the teaching platform, a fixed column is connected to the other end of the top of the teaching platform, a display platform is fixedly connected to the top of the fixed column, and a camera mechanism is arranged on the outer edge of the display platform. The camera mechanism comprises a rotating sleeve, the bottom of the teaching table is provided with a driving assembly, the top end of the rotating sleeve is fixedly connected with a connecting plate, the bottom of the connecting plate is provided with a movable plate, one end of the bottom of the connecting plate is provided with a lifting assembly, the top of the movable plate is fixedly connected with a mounting seat, and the top end of the inner side of the mounting seat is connected with a rotating frame; a camera is fixedly connected to the top end of the rotating frame, and a linkage assembly is arranged at the bottom of the movable plate. Video signals shot by the camera can be sent to the computer and played through the projector, and the problem that in the prior art, experiment articles cannot be comprehensively displayed by all students is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of multimedia teaching, in particular to a multimedia teaching device based on pedagogy. Background Art

[0002] Multimedia teaching refers to the process of teaching, based on the teaching objectives and the characteristics of the teaching objects, through teaching design, the rational selection and use of modern teaching media, and the organic combination with traditional teaching methods, to jointly participate in the entire teaching process. The current multimedia teaching devices mainly output the electronic teaching content in the computer to the projector for display, which is convenient for all students to watch and learn.

[0003] For example, Chinese patent publication number CN215526950U discloses "a multimedia teaching device, including a power box, a keyboard drawer, a display screen, a support and adjustment mechanism, a fixed frame, a control cabinet and a shell, wherein a power box is arranged at one end of the shell, a fixed frame is fixed at the upper end of the shell, a keyboard drawer is slidably arranged at one end of the fixed frame, a display screen is obliquely fixed at the upper end of the fixed frame, a support and adjustment mechanism for placing teaching materials is arranged inside the upper end of the fixed frame, and a control cabinet is fixed to the upper end of the fixed frame".

[0004] This type of patent mainly realizes teaching through the cooperation of textbooks and display screens. However, in the teaching process of some science and engineering subjects, experimental operations are required. In order to let students understand the experimental equipment more intuitively, teachers generally place some experimental items on the teaching table for students to watch. Since the experimental items are small in size, students who are far away from the teaching table cannot see them clearly, which makes the teaching display fail to achieve the expected teaching effect. Summary of the invention

[0005] The present invention provides a multimedia teaching device based on pedagogy, which solves the problem in the prior art that the display of experimental objects cannot be fully displayed to all students.

[0006] The technical solution of the present invention is as follows: A multimedia teaching device based on pedagogy comprises a teaching platform, a computer is fixedly installed at one end of the top of the teaching platform, the output end of the computer is connected to the projector signal, a fixed column is fixedly connected to the other end of the top of the teaching platform, a display stand for displaying teaching experimental items is fixedly connected to the top of the fixed column, a camera mechanism is arranged on the outer edge of the display stand, the camera mechanism comprises a rotating sleeve, the rotating sleeve is arranged on the outer side of the fixed column, and the bottom end of the rotating sleeve is rotatably connected to the teaching platform, a driving component for driving the rotating sleeve to rotate is arranged at the bottom of the teaching platform, a connecting plate is fixedly connected to the top of the rotating sleeve, a movable plate is arranged in parallel at the bottom of the connecting plate, a lifting component for driving the movable plate to periodically translate up and down in the vertical direction is arranged at one end of the bottom of the connecting plate, a mounting seat is fixedly connected to one end of the top of the movable plate, a rotating frame is rotatably connected to the top of the inner side of the mounting seat, a camera is fixedly connected to the top of the rotating frame, the camera is connected to the computer signal, and a linkage component is arranged at the bottom of the movable plate to drive the rotating frame to rotate periodically by cooperating with the lifting component.

[0007] Preferably, the driving assembly includes a servo motor, which is fixedly mounted on the bottom of the teaching platform, the output shaft of the servo motor is fixedly connected to a driving gear, the bottom end of the outer side of the rotating sleeve is fixedly connected to a gear ring, and the driving gear is meshed with the gear ring.

[0008] Preferably, the lifting assembly includes a screw rod arranged in a vertical direction, the top end of the screw rod is rotatably connected to the connecting plate, one end of the movable plate is threadedly connected to the screw rod, one end of the bottom of the connecting plate is fixedly connected to a guide rod arranged parallel to the screw rod, the guide rod is slidably connected to the movable plate, the bottom end of the guide rod is fixedly connected to a limiting block, and the bottom end of the screw rod is provided with a first transmission member for driving the screw rod to rotate.

[0009] Preferably, the screw rod and the guide rod have the same length and the same diameter.

[0010] Preferably, the first transmission member includes a transmission gear 1, which is fixedly connected to the bottom of the screw rod, and an arc-shaped plate 1 is fixedly connected to the top of the teaching platform, and an arc-shaped rack 1 intermittently meshing with the transmission gear 1 is fixedly connected to the inner side of the arc-shaped plate 1.

[0011] Preferably, the linkage assembly includes a worm, which is rotatably connected to one end of the movable plate, and the inner side of the mounting seat is rotatably connected to a worm wheel coaxially fixed to the rotating frame, the worm wheel is meshed with the worm, and the bottom end of the worm is provided with a second transmission member that drives the worm to rotate.

[0012] Preferably, the second transmission member includes a second transmission gear, which is fixedly connected to the bottom end of the worm, and one end of the top of the teaching platform is fixedly connected to a second arc-shaped plate, and the inner side of the second arc-shaped plate is fixedly connected to a second arc-shaped rack that intermittently meshes with the second transmission gear.

[0013] Preferably, the arc-shaped plate 1 and the arc-shaped plate 2 have the same curvature, and are located at different positions in the horizontal direction.

[0014] Preferably, the arc-shaped rack 1 and the arc-shaped rack 2 have the same number of teeth, and the height of the arc-shaped rack 2 is greater than the height of the arc-shaped rack 1.

[0015] Preferably, after the movable plate is translated upward, the second transmission gear and the second arc-shaped rack are at the same height, and after the movable plate is translated downward, the second transmission gear is less than the height of the second arc-shaped rack.

[0016] Technical effects and advantages of the present invention: 1. In the present invention, the teaching experimental items are placed on the display table, and then the experimental items on the display table are photographed by a camera, and the video signal photographed by the camera is transmitted to a computer, and then the display screen is played out by a projector through the computer, so that all students can watch it, effectively avoiding the problem that some students are too far away from the teaching table and cannot see clearly; 2. During display in the present invention, the rotating sleeve can be rotated by the driving component, which makes the connecting plate drive the movable plate to rotate synchronously in the circumferential direction, and the mounting seat drives the rotating frame to rotate in the horizontal direction, so that the camera can dynamically shoot around the display stand, and then the camera can shoot the experimental items on the display stand. The movable plate can be translated upward by the lifting component, which makes the camera translate vertically upward to increase the shooting height. At the same time, the linkage component can drive the rotating frame to rotate downward, which makes the camera tilt downward to shoot the experimental items on the display stand from a bird's-eye view. The entire dynamic shooting process of the camera can realize the shooting and display of the experimental items from different angles, so that students can have a more comprehensive understanding of the displayed experimental items, greatly improving the teaching effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a structural schematic diagram of a multimedia teaching device based on pedagogy.

[0018] Figure 2 It is a schematic diagram of the local structure of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the video recording mechanism of the present invention.

[0020] Figure 4It is a schematic diagram of the structure of the driving assembly of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the lifting assembly of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the linkage assembly of the present invention.

[0023] Figure 7 It is a system block diagram of the present invention.

[0024] The accompanying drawings are marked as follows: 1. teaching table; 2. computer; 3. fixed column; 4. display table; 5. camera mechanism; 51. rotating sleeve; 52. driving assembly; 521. servo motor; 522. driving gear; 523. gear ring; 53. connecting plate; 54. movable plate; 55. lifting assembly; 551. guide rod; 552. limit block; 553. screw rod; 554. first transmission member; 5541. transmission gear 1; 5542. arc plate 1; 5543. arc rack 1; 56. mounting seat; 57. rotating frame; 58. camera; 59. linkage assembly; 591. worm; 592. worm wheel; 593. second transmission member; 5931. transmission gear 2; 5932. arc plate 2; 5933. arc rack 2. DETAILED DESCRIPTION

[0025] The following will be combined with 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.

[0026] Reference Figure 1 - Figure 3The present invention provides a multimedia teaching device based on pedagogy, comprising a teaching platform 1, a computer 2 is fixedly installed at one end of the top of the teaching platform 1, the output end of the computer 2 is connected to the projector signal, a fixed column 3 is fixedly connected to the other end of the top of the teaching platform 1, a display stand 4 for displaying teaching experimental items is fixedly connected to the top of the fixed column 3, a camera mechanism 5 is arranged on the outer edge of the display stand 4, the camera mechanism 5 comprises a rotating sleeve 51, the rotating sleeve 51 is sleeved on the outer side of the fixed column 3, and the bottom end of the rotating sleeve 51 is rotatably connected to the teaching platform 1, and a driving group for driving the rotating sleeve 51 to rotate is arranged at the bottom of the teaching platform 1 Part 52, the top of the rotating sleeve 51 is fixedly connected with a connecting plate 53, the bottom of the connecting plate 53 is parallelly provided with a movable plate 54, one end of the bottom of the connecting plate 53 is provided with a lifting component 55 for driving the movable plate 54 to periodically translate up and down in the vertical direction, one end of the top of the movable plate 54 is fixedly connected with a mounting seat 56, the top of the inner side of the mounting seat 56 is rotatably connected with a rotating frame 57, the top of the rotating frame 57 is fixedly connected with a camera 58, the camera 58 is connected to the computer 2 signal, and the bottom of the movable plate 54 is provided with a linkage component 59 for driving the rotating frame 57 to rotate back and forth periodically by cooperating with the lifting component 55.

[0027] By placing the teaching experimental items on the display table 4, and then shooting the experimental items on the display table 4 through the camera 58, the video signal shot by the camera 58 is sent to the computer 2, and then the display screen is played through the projector through the computer 2, so that all students can watch it, effectively avoiding the problem that some students are too far away from the teaching table 1 and cannot see clearly; During display, the driving component 52 can be used to rotate the rotating sleeve 51, which enables the connecting plate 53 to drive the movable plate 54 to rotate synchronously, and the mounting seat 56 drives the rotating frame 57 to rotate horizontally, so that the camera 58 can dynamically shoot around the display stand 4, and then the camera 58 can shoot 360 degrees of the experimental items on the display stand 4. The movable plate 54 can be translated upward by the lifting component 55, which enables the camera 58 to translate vertically upward to increase the shooting height. At the same time, the linkage component 59 can drive the rotating frame 57 to rotate downward, which enables the camera 58 to tilt downward to shoot the experimental items on the display stand 4 from a bird's-eye view. The entire dynamic shooting process of the camera 58 can realize the shooting and display of the experimental items from different perspectives, so that students can have a more comprehensive understanding of the displayed experimental items, greatly improving the teaching effect.

[0028] Reference Figure 4The driving assembly 52 includes a servo motor 521, which is fixedly mounted at the bottom of the teaching platform 1. The output shaft of the servo motor 521 is fixedly connected to a driving gear 522. The bottom end of the outer side of the rotating sleeve 51 is fixedly connected to a gear ring 523, and the driving gear 522 meshes with the gear ring 523. By driving the output shaft of the servo motor 521 to reciprocate 360 ​​degrees, the driving gear 522 is reciprocated 360 degrees, and the gear ring 523 drives the rotating sleeve 51 to reciprocate 360 ​​degrees, so that the connecting plate 53 drives the movable plate 54 to rotate synchronously in the circumferential direction, and the mounting seat 56 drives the rotating frame 57 to rotate in the horizontal direction, so that the camera 58 surrounds the display platform 4 for dynamic shooting.

[0029] Reference Figure 5 The lifting assembly 55 includes a screw rod 553 arranged in the vertical direction, the top of the screw rod 553 is rotatably connected to the connecting plate 53, one end of the movable plate 54 is threadedly connected to the screw rod 553, one end of the bottom of the connecting plate 53 is fixedly connected to a guide rod 551 arranged parallel to the screw rod 553, the guide rod 551 is slidably connected to the movable plate 54, the bottom end of the guide rod 551 is fixedly connected to a limited block 552, and a first transmission member 554 for driving the screw rod 553 to rotate is provided at the bottom end of the screw rod 553. The screw rod 553 and the guide rod 551 have the same length and the same diameter. The first transmission member 554 includes a transmission gear 5541, which is fixedly connected to the bottom of the screw rod 553. The top of the teaching platform 1 is fixedly connected to an arc plate 5542, and the inner side of the arc plate 5542 is fixedly connected to an arc rack 5543 intermittently meshing with the transmission gear 5541.

[0030] When the output shaft of the servo motor 521 is driven to rotate clockwise, the driving gear 522 drives the gear ring 523 to rotate, and the gear ring 523 also rotates clockwise, so that the rotating sleeve 51 drives the connecting plate 53 to rotate clockwise, so that the screw rod 553 drives the transmission gear 1 5541 to rotate clockwise. When the transmission gear 1 5541 is meshed with the arc-shaped rack 1 5543, the transmission gear 1 5541 is self-propagated by the meshing force of the arc-shaped rack 1 5543, which makes the screw rod 553 rotate, and the movable plate 54 can translate upward; The output shaft of the servo motor 521 is driven to rotate clockwise for one circle and then rotate counterclockwise, which makes the driving gear 522 drive the ring gear 523 to rotate, and the ring gear 523 also rotates counterclockwise, which makes the rotating sleeve 51 drive the connecting plate 53 to rotate counterclockwise, so that the lead screw 553 drives the transmission gear 1 5541 to rotate counterclockwise. When the transmission gear 1 5541 is meshed with the arc-shaped rack 1 5543 again, the transmission gear 1 5541 is subjected to the meshing force of the arc-shaped rack 1 5543 and rotates in the reverse direction, which makes the lead screw 553 rotate, and the movable plate 54 can be translated downward, and the cycle is repeated, and the movable plate 54 can achieve periodic reciprocating translation up and down.

[0031] Reference Figure 6 The linkage assembly 59 includes a worm 591, which is rotatably connected to one end of the movable plate 54. The inner side of the mounting seat 56 is rotatably connected to a worm wheel 592 coaxially fixed to the rotating frame 57. The worm wheel 592 meshes with the worm 591. The bottom end of the worm 591 is provided with a second transmission member 593 for driving the worm 591 to rotate. The second transmission member 593 includes a transmission gear 5931, which is fixedly connected to the bottom end of the worm 591. One end of the top of the teaching platform 1 is fixedly connected to an arc plate 5932, and the inner side of the arc plate 5932 is fixedly connected to the arc plate 5932. It is connected to an arc-shaped rack 2 5933 which intermittently meshes with the transmission gear 2 5931. The arc-shaped plate 1 5542 has the same curvature as the arc-shaped plate 2 5932, and the two are in different positions in the horizontal direction. The arc-shaped rack 1 5543 has the same number of teeth as the arc-shaped rack 2 5933, and the height of the arc-shaped rack 2 5933 is greater than the height of the arc-shaped rack 1 5543. After the movable plate 54 is translated upward, the transmission gear 2 5931 and the arc-shaped rack 2 5933 are at the same height. After the movable plate 54 is translated downward, the transmission gear 2 5931 is smaller than the height of the arc-shaped rack 2 5933. When the movable plate 54 translates upward, the transmission gear 2 5931 and the arc-shaped rack 2 5933 are at the same height, and as the movable plate 54 rotates circumferentially following the connecting plate 53, the transmission gear 2 5931 will mesh with the arc-shaped rack 2 5933. When the transmission gear 2 5931 meshes with the arc-shaped rack 2 5933, the transmission gear 2 5931 rotates under the action of the meshing force of the arc-shaped rack 2 5933, which makes the worm 591 rotate, and the worm wheel 592 drives the rotating frame 57 to rotate downward, so that the camera 58 tilts downward to take a bird's-eye view of the experimental items on the display stand 4.

[0032] The working principle of the present invention is as follows: first, the teaching experimental items are placed on the display stand 4, and then the experimental items on the display stand 4 are photographed by the camera 58, and the video signal photographed by the camera 58 is sent to the computer 2, and then the display screen is played out through the projector through the computer 2, so that all students can watch it; By driving the output shaft of the servo motor 521 to reciprocate 360 ​​degrees, the driving gear 522 is reciprocated 360 degrees, and the gear ring 523 drives the rotating sleeve 51 to reciprocate 360 ​​degrees, so that the connecting plate 53 drives the movable plate 54 to rotate synchronously in the circumferential direction, and the mounting seat 56 drives the rotating frame 57 to rotate in the horizontal direction, so that the camera 58 surrounds the display stand 4 for dynamic shooting; When the output shaft of the servo motor 521 is driven to rotate clockwise, the driving gear 522 drives the gear ring 523 to rotate, and the gear ring 523 also rotates clockwise, so that the rotating sleeve 51 drives the connecting plate 53 to rotate clockwise, so that the screw rod 553 drives the transmission gear 1 5541 to rotate clockwise. When the transmission gear 1 5541 is meshed with the arc-shaped rack 1 5543, the transmission gear 1 5541 is self-propagated by the meshing force of the arc-shaped rack 1 5543, which makes the screw rod 553 rotate, and the movable plate 54 can translate upward; The output shaft of the servo motor 521 is driven to rotate clockwise for one circle and then rotate counterclockwise, which causes the driving gear 522 to drive the ring gear 523 to rotate, and the ring gear 523 also rotates counterclockwise, which causes the rotating sleeve 51 to drive the connecting plate 53 to rotate counterclockwise, thereby causing the lead screw 553 to drive the transmission gear 1 5541 to rotate counterclockwise. When the transmission gear 1 5541 is meshed with the arc-shaped rack 1 5543 again, the transmission gear 1 5541 is subjected to the meshing force of the arc-shaped rack 1 5543 and rotates in the reverse direction, which causes the lead screw 553 to rotate, and the movable plate 54 can be translated downward, and the cycle continues. The movable plate 54 can To achieve periodic up and down reciprocating translation, when the movable plate 54 translates upward, the transmission gear 2 5931 and the arc-shaped rack 2 5933 are at the same height, as the movable plate 54 rotates circumferentially following the connecting plate 53, the transmission gear 2 5931 will mesh with the arc-shaped rack 2 5933, and when the transmission gear 2 5931 meshes with the arc-shaped rack 2 5933, the transmission gear 2 5931 rotates under the action of the meshing force of the arc-shaped rack 2 5933, which makes the worm 591 rotate, and the worm wheel 592 drives the rotating frame 57 to rotate downward, so that the camera 58 tilts downward to take a bird's-eye view of the experimental items on the display stand 4.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. 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 multimedia teaching device for pedagogy, comprising a teaching platform (1), a computer (2) being fixedly mounted on one end of the top of the teaching platform (1), an output end of the computer (2) being connected to a projector signal, characterized in that: The other end of the top of the teaching platform (1) is fixedly connected to a fixed column (3), the top of the fixed column (3) is fixedly connected to a display stand (4) for displaying teaching experimental items, the outer edge of the display stand (4) is provided with a camera mechanism (5), the camera mechanism (5) comprises a rotating sleeve (51), the rotating sleeve (51) is sleeved on the outside of the fixed column (3), and the bottom end of the rotating sleeve (51) is rotatably connected to the teaching platform (1), the bottom of the teaching platform (1) is provided with a driving component (52) for driving the rotating sleeve (51) to rotate, the top of the rotating sleeve (51) is fixedly connected to a connecting plate (53), the bottom of the connecting plate (53) is connected to the rotating sleeve (51), and the rotating sleeve (51) is connected to the rotating sleeve (51). A movable plate (54) is arranged in parallel with the connecting plate (53); a lifting assembly (55) for driving the movable plate (54) to periodically move up and down in a vertical direction is arranged at one end of the bottom of the connecting plate (53); a mounting seat (56) is fixedly connected to one end of the top of the movable plate (54); a rotating frame (57) is rotatably connected to the top of the inner side of the mounting seat (56); a camera (58) is fixedly connected to the top of the rotating frame (57); the camera (58) is connected to the computer (2) by signal; and a linkage assembly (59) is arranged at the bottom of the movable plate (54) for driving the rotating frame (57) to periodically reciprocate by cooperating with the lifting assembly (55).

2. A multimedia teaching device for pedagogy according to claim 1, characterized in that: The driving assembly (52) comprises a servo motor (521), the servo motor (521) being fixedly mounted on the bottom of the teaching platform (1), the output shaft of the servo motor (521) being fixedly connected to a driving gear (522), the bottom end of the outer side of the rotating sleeve (51) being fixedly connected to a gear ring (523), and the driving gear (522) being meshed with the gear ring (523).

3. A multimedia teaching device for pedagogy according to claim 1, characterized in that: The lifting assembly (55) comprises a screw rod (553) arranged in a vertical direction, the top end of the screw rod (553) is rotatably connected to the connecting plate (53), one end of the movable plate (54) is threadedly connected to the screw rod (553), one end of the bottom of the connecting plate (53) is fixedly connected to a guide rod (551) arranged parallel to the screw rod (553), the guide rod (551) is slidably connected to the movable plate (54), the bottom end of the guide rod (551) is fixedly connected to a limit block (552), and the bottom end of the screw rod (553) is provided with a first transmission member (554) for driving the screw rod (553) to rotate.

4. A multimedia teaching device for pedagogy according to claim 3, characterized in that: The screw rod (553) and the guide rod (551) have the same length and the same diameter.

5. A multimedia teaching device for pedagogy according to claim 3, characterized in that: The first transmission member (554) comprises a transmission gear 1 (5541), wherein the transmission gear 1 (5541) is fixedly connected to the bottom of the screw rod (553), and an arc-shaped plate 1 (5542) is fixedly connected to the top of the teaching platform (1), and an arc-shaped rack 1 (5543) intermittently meshing with the transmission gear 1 (5541) is fixedly connected to the inner side of the arc-shaped plate 1 (5542).

6. A multimedia teaching device for pedagogy according to claim 5, characterized in that: The linkage assembly (59) comprises a worm (591), wherein the worm (591) is rotatably connected to one end of the movable plate (54), and the inner side of the mounting seat (56) is rotatably connected to a worm wheel (592) coaxially fixed to the rotating frame (57), wherein the worm wheel (592) meshes with the worm (591), and a second transmission member (593) for driving the worm (591) to rotate is provided at the bottom end of the worm (591).

7. A multimedia teaching device for pedagogy according to claim 6, characterized in that: The second transmission member (593) comprises a second transmission gear (5931), wherein the second transmission gear (5931) is fixedly connected to the bottom end of the worm (591), and one end of the top of the teaching platform (1) is fixedly connected to a second arc-shaped plate (5932), and the inner side of the second arc-shaped plate (5932) is fixedly connected to a second arc-shaped rack (5933) intermittently meshing with the second transmission gear (5931).

8. A multimedia teaching device for pedagogy according to claim 7, characterized in that: The arc-shaped plate 1 (5542) and the arc-shaped plate 2 (5932) have the same curvature, and are located at different positions in the horizontal direction.

9. A multimedia teaching device for pedagogy according to claim 7, characterized in that: The arc-shaped rack 1 (5543) and the arc-shaped rack 2 (5933) have the same number of teeth, and the height of the arc-shaped rack 2 (5933) is greater than the height of the arc-shaped rack 1 (5543).

10. A multimedia teaching device for pedagogy according to claim 7, characterized in that: After the movable plate (54) is translated upward, the second transmission gear (5931) and the second arc-shaped rack (5933) are at the same height; after the movable plate (54) is translated downward, the second transmission gear (5931) is less than the height of the second arc-shaped rack (5933).

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