Multimedia digital education interaction device based on laser radar

Abstract

The invention relates to the technical field of education interaction, and discloses a multimedia digital education interaction device based on laser radar, which comprises an outer frame, a static blackboard and a multimedia display screen are mounted on the rear side of an inner cavity of the outer frame, a movable blackboard is slidably connected to the inner cavity of the outer frame, and a top frame is mounted at the top of the outer frame; and the laser radar lifting assembly is arranged in the top frame, and the laser radar lifting assembly comprises a special-shaped groove. The rear side of a movable blackboard is connected with a laser radar body through a special-shaped groove, a movable column, a connecting plate and a transverse plate, so that when a multimedia display screen on the rear side of the movable blackboard is turned on, the movable column and the connecting plate can move upwards along with movement of the special-shaped groove in the rear side of the movable blackboard, and the laser radar body is driven to move upwards; and the laser radar body is moved out of the top frame for use, so that the laser radar body is moved out of the top frame only when the laser radar body needs to be used, and the laser radar body can be protected when the laser radar body does not need to be used.

Description

Technical Field

[0001] The present invention relates to the field of educational interaction technology, and in particular to a multimedia digital educational interaction device based on laser radar. Background Art

[0002] In existing multimedia digital education, teaching information is usually displayed through multimedia display screens, which are usually exposed to the outside and have no protective function. When not in use, students can easily bump into the multimedia display screens and cause damage, resulting in unnecessary losses, and they are easily covered with dust.

[0003] Chinese patent publication number CN213750336U discloses a multimedia digital educational interactive device based on laser radar, including a protective box and a multimedia display screen. One side of the protective box is rotatably connected to a box door, and a laser radar is fixedly installed on the top of the protective box. The top of the protective box is provided with a mounting slot, and a fixing component for fixing the box door is provided inside the mounting slot. The bottom inner wall of the protective box is slidably connected to a pushing component for pushing the multimedia display screen, and the bottom of the protective box is fixedly connected to a support plate, and the bottom four corners of the support plate are fixedly connected to support columns. The above problems are solved. However, the laser radar is exposed to the outside. Since the multimedia digital educational interactive device based on laser radar is used in schools or teaching interaction places with a large number of people, it is easy to bump into the laser radar. At the same time, when used in a classroom, the chalk dust is large, and the dust can easily enter the interior of the laser radar. The accumulation of dust in the laser radar affects its performance and affects its normal operation. Summary of the Invention

[0004] The purpose of the present invention is to provide a multimedia digital educational interactive device based on laser radar to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a multimedia digital educational interactive device based on laser radar, comprising: An outer frame, wherein a static blackboard and a multimedia display screen are installed on the rear side of the inner cavity of the outer frame, a moving blackboard is slidably connected to the inner cavity of the outer frame, and a top frame is installed on the top of the outer frame; A laser radar lifting assembly is arranged in the top frame, and the laser radar lifting assembly includes a special-shaped groove, a special-shaped groove is opened on the rear side of the movable blackboard, a movable column is movably sleeved in the inner cavity of the special-shaped groove, a connecting plate is fixedly installed on the rear side of the movable column, a horizontal plate is fixedly installed on the top of the connecting plate, a side plate is fixedly installed on the top of the top frame, a square opening is opened on the side plate, one end of the horizontal plate is connected to the laser radar body through the square opening, and a light shielding protection assembly is provided on the top of the top frame.

[0006] As a further improvement of the present invention, the middle portion of the special-shaped groove remains horizontal after extending downward, and the side of the special-shaped groove close to the laser radar body is located obliquely above the other side of the special-shaped groove.

[0007] As a further improvement of the present invention, a light-shielding protection component is provided on the top of the top frame, and the light-shielding protection component includes a support plate, a rotating shaft, a return spring and a light-shielding mirror. The support plate is fixedly installed on the top of the top frame, and a rotating shaft is rotatably connected to the return spring. A light-shielding mirror is fixedly installed on one end of the rotating shaft, and the outer side of the rotating shaft is connected to the support plate by a return spring.

[0008] As a further improvement of the present invention, the bottom of the sunshade mirror is in contact with the top of the side plate in the free state of the return spring, and return springs are provided on both sides of the support plate.

[0009] As a further improvement of the present invention, a surface cleaning assembly is provided on the top of the sunshade mirror, and the surface cleaning assembly includes a movable groove, a movable block, a soft brush, a reset spring, a connecting rope, a guide rod frame and a counterweight block. A movable groove is opened on the top of the sunshade mirror, and the inner cavity of the movable groove is slidably connected to the movable block. A soft brush located at the top of the sunshade mirror is installed on the top of the movable block. The rear side of the movable block is connected to the rear side of the inner cavity of the movable groove by a reset spring. The rear side of the movable block is connected to a connecting rope, and one end of the connecting rope passes through the rear side of the movable groove and is connected to the counterweight block. A guide rod frame is fixedly installed on the rear side of the top frame, and the inner cavity of the counterweight block is movably sleeved on the outer side of the guide rod frame.

[0010] As a further improvement of the present invention, a guide wheel is installed on the rear side of the top frame, and a connecting rope is connected to the outer side of the guide wheel.

[0011] As a further improvement of the present invention, the guide rod frame is in a U-shape as a whole, and the guide rod frame is located below the guide wheel.

[0012] As a further improvement of the present invention, both sides of the sunshade mirror are provided with a moving groove, a moving block, a return spring, a connecting rope and a counterweight block.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The multimedia digital educational interactive device based on laser radar is connected to the laser radar body through the special-shaped groove, movable column, connecting plate and cross plate on the rear side of the movable blackboard. When the multimedia display screen on the rear side of the movable blackboard is opened, the movable column and the connecting plate can move upward along with the movement of the special-shaped groove on the rear side of the movable blackboard, driving the laser radar body to move upward, and the laser radar body is moved out of the top frame for use, so that the laser radar body is moved out of the top frame only when it is needed, which is convenient for protecting the laser radar body when it is not needed.

[0014] 2. The multimedia digital educational interactive device based on laser radar is provided with a sunshade mirror on the top of the top frame. When the laser radar body moves upward, the sunshade mirror can be pushed to rotate. The sunshade mirror is placed in front of the laser radar body to shield the laser radar body, thereby improving the stability and accuracy of the laser radar body in a strong light environment. The bottom of the sunshade mirror contacts the top of the side panel in a free state through the rebound spring. When the laser radar body is not needed, the top of the laser radar body is in a sealed state, thereby preventing external dust or impurities from entering the top frame and the laser radar body, preventing dust accumulation in the laser radar body from affecting its performance, and ensuring the normal operation of the laser radar body.

[0015] 3. The multimedia digital educational interactive device based on laser radar has a surface cleaning component on the sunshade. When the sunshade is moved upward by the thrust of the laser radar body, the moving block and the soft brush are driven to rotate together. As the sunshade rotates, the moving block becomes farther and farther away from the counterweight block. The connecting rope is used to pull the moving block to move in the moving groove, driving the soft brush to move on the sunshade, making it easy to clean the dust or chalk dust on the surface of the sunshade, thereby ensuring that the laser radar body can be used through the sunshade. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of a multimedia digital educational interactive device based on laser radar according to the present invention; Figure 2 This is a schematic diagram of the structure of a multimedia display screen of a multimedia digital educational interactive device based on laser radar according to the present invention; Figure 3 This is a schematic diagram of the structure of a laser radar lifting component of a multimedia digital educational interactive device based on laser radar according to the present invention; Figure 4 The present invention is a multimedia digital educational interactive device based on laser radar Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic structural diagram of a light shielding protection component of a multimedia digital educational interactive device based on laser radar according to the present invention; Figure 6This is an exploded diagram between the moving slot and the moving block of a multimedia digital educational interactive device based on laser radar according to the present invention.

[0018] In the figure: 1. Outer frame; 2. Static blackboard; 3. Moving blackboard; 4. Top frame; 5. Surface cleaning assembly; 501. Moving groove; 502. Moving block; 503. Soft brush; 504. Return spring; 505. Connecting rope; 506. Guide wheel; 507. Guide rod frame; 508. Counterweight; 6. Shading protection assembly; 61. Support plate; 62. Rotating shaft; 63. Return spring; 64. Shading mirror; 7. Side panel; 8. LiDAR body; 9. LiDAR lifting assembly; 91. Special-shaped groove; 92. Moving column; 93. Connecting plate; 94. Horizontal panel; 95. Square opening; 10. Multimedia display screen. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-6 The present invention provides a multimedia digital educational interactive device based on laser radar, comprising: The outer frame 1 has a static blackboard 2 and a multimedia display screen 10 installed on the rear side of the inner cavity of the outer frame 1, a moving blackboard 3 is slidably connected to the inner cavity of the outer frame 1, and a top frame 4 is installed on the top of the outer frame 1; The laser radar lifting component 9 is arranged in the top frame 4. The laser radar lifting component 9 includes a special-shaped groove 91. A special-shaped groove 91 is opened on the rear side of the movable blackboard 3. The inner cavity of the special-shaped groove 91 is movably connected with a moving column 92. A connecting plate 93 is fixedly installed on the rear side of the moving column 92. A horizontal plate 94 is fixedly installed on the top of the connecting plate 93. A side plate 7 is fixedly installed on the top of the top frame 4. A square opening 95 is opened on the side plate 7. One end of the horizontal plate 94 passes through the square opening 95 and is connected to the laser radar body 8. A light-shielding protection component 6 is provided on the top of the top frame 4. The rear side of the moving blackboard 3 is connected to the laser radar body 8 by using the special-shaped groove 91, the movable column 92, the connecting plate 93 and the cross plate 94, so that when the multimedia display screen 10 on the rear side of the moving blackboard 3 is opened, the movable column 92 and the connecting plate 93 can move upward with the movement of the special-shaped groove 91 on the rear side of the moving blackboard 3, driving the laser radar body 8 to move upward, and moving the laser radar body 8 out of the top frame 4 for use, so that the laser radar body 8 is only moved out of the top frame 4 when it is needed, which is convenient for protecting the laser radar body 8 when it is not needed.

[0021] A signal connection is established between the laser radar body 8 and the multimedia display screen 10. The laser radar body 8 can sense human gestures and, through appropriate algorithms and software processing, convert these gestures into control signals, enabling gesture recognition and operation. In multimedia teaching, teachers and students can control teaching equipment with simple gestures, such as turning pages, playing videos, and highlighting key points, without the need for a traditional mouse, keyboard, or touchscreen. This provides a more natural and convenient way to interact, enhancing the flexibility and interactivity of teaching.

[0022] The middle portion of the special-shaped groove 91 extends downward and remains horizontal, and the side of the special-shaped groove 91 close to the laser radar body 8 is located obliquely above the other side of the special-shaped groove 91. Due to the shape characteristics of the special-shaped groove 91, when the movable blackboard 3 moves, it can drive the laser radar body 8 to move up or down, making it easier to control the position of the laser radar body 8.

[0023] A light shielding protection assembly 6 is provided at the top of the top frame 4. The light shielding protection assembly 6 includes a support plate 61, a rotating shaft 62, a return spring 63, and a light shielding mirror 64. The support plate 61 is fixedly mounted on the top of the top frame 4. The rotating shaft 62 is rotatably connected to the return spring 63. A light shielding mirror 64 is fixedly mounted on one end of the rotating shaft 62. The outer side of the rotating shaft 62 is connected to the support plate 61 by the return spring 63. The light shielding mirror 64 is provided at the top of the top frame 4. When the laser radar body 8 moves upward, the light shielding mirror 64 can be pushed to rotate. The light shielding mirror 64 is placed on the front side of the laser radar body 8 to shield the laser radar body 8, thereby improving the stability and accuracy of the laser radar body 8 in a strong light environment.

[0024] When the return spring 63 is free, the bottom of the sunshade mirror 64 contacts the top of the side plate 7. Return springs 63 are provided on both sides of the support plate 61. Because the bottom of the sunshade mirror 64 contacts the top of the side plate 7 when the return spring 63 is free, the top of the laser radar body 8 is sealed when the laser radar body 8 is not in use. This prevents external dust or impurities from entering the top frame 4 and the laser radar body 8, preventing dust accumulation in the laser radar body 8 from affecting its performance, and ensuring the normal operation of the laser radar body 8.

[0025] A surface cleaning assembly 5 is provided on the top of the sunshade mirror 64. The surface cleaning assembly 5 includes a moving groove 501, a moving block 502, a soft brush 503, a return spring 504, a connecting rope 505, a guide rod frame 507 and a counterweight 508. A moving groove 501 is provided on the top of the sunshade mirror 64. The inner cavity of the moving groove 501 is slidably connected to the moving block 502. The top of the moving block 502 is provided with a soft brush 503 located on the top of the sunshade mirror 64. The rear side of the moving block 502 is connected to the rear side of the inner cavity of the moving groove 501 by the return spring 504. The rear side of the moving block 502 is connected to the connecting rope 505. One end of the connecting rope 505 passes through the rear side of the moving groove 501 and is connected to the counterweight 508. A guide rod frame 507 is fixedly installed on the rear side of the top frame 4. The inner cavity of the counterweight 508 is movably sleeved on the outer side of the guide rod frame 507. A surface cleaning component 5 is provided on the sunshade mirror 64. When the sunshade mirror 64 is pushed upward by the thrust of the laser radar body 8, the moving block 502 and the soft brush 503 are driven to rotate together. As the sunshade mirror 64 rotates, the moving block 502 becomes farther and farther away from the counterweight block 508. The connecting rope 505 is used to pull the moving block 502 to move in the moving groove 501, driving the soft brush 503 to move on the sunshade mirror 64, so as to facilitate the cleaning of dust or chalk dust on the surface of the sunshade mirror 64, thereby ensuring that the laser radar body 8 can be used through the sunshade mirror 64.

[0026] The rear side of the top frame 4 is equipped with a guide wheel 506, and the outside of the guide wheel 506 is connected with a connecting rope 505. By arranging the guide wheel 506, it is convenient to guide the connecting rope 505.

[0027] The guide rod frame 507 is generally U-shaped and is located below the guide wheel 506. The guide rod frame 507 is provided and its shape is utilized to limit the upward movement range of the counterweight 508 when the sunshade mirror 64 rotates with the counterweight 508 by the connecting rope 505. This allows the counterweight 508 to remain in a fixed position when the sunshade mirror 64 continues to rotate. The connecting rope 505 is then used to pull the movable block 502 to move within the movable groove 501. This allows the surface of the sunshade mirror 64 to be cleaned before use.

[0028] Both sides of the light-shielding mirror 64 are provided with a moving groove 501, a moving block 502, a return spring 504, a connecting rope 505 and a counterweight 508. The moving groove 501, the moving block 502, the return spring 504, the connecting rope 505 and the counterweight 508 are provided on both sides of the light-shielding mirror 64, so that the soft brush 503 can move stably.

[0029] Working principle: When using this device, the user pushes the movable blackboard 3 to open the front side of the multimedia display screen 10, driving the special-shaped groove 91 on the rear side of the movable blackboard 3 to move. Since the special-shaped groove 91 is provided with a moving column 92, the moving column 92 and the connecting plate 93 can move upward along with the movement of the special-shaped groove 91 on the rear side of the movable blackboard 3 by utilizing the shape characteristics of the special-shaped groove 91, driving the laser radar body 8 to move upward along the trajectory of the inner cavity of the square opening 95, and removing the laser radar body 8 from the top frame 4 for use; When the laser radar body 8 moves upward, it contacts the bottom of the light shielding mirror 64, which can push the light shielding mirror 64 to rotate forward, causing the return spring 63 to twist, and the light shielding mirror 64 to stand on the front side of the laser radar body 8, thereby shielding the laser radar body 8; At this time, when the shading mirror 64 is pushed upward by the laser radar body 8, it drives the moving block 502 and the soft brush 503 to rotate together, and uses the connecting rope 505 on the shading mirror 64 to drive the counterweight 508 to move upward along the outer side of the guide rod frame 507. When the counterweight 508 moves to the top of the guide rod frame 507, the counterweight 508 cannot continue to move upward. Since the shading mirror 64 rotates, the moving block 502 is farther and farther away from the counterweight 508. The connecting rope 505 on the counterweight 508 is used to pull the moving block 502 to move in the moving groove 501, compressing the return spring 504, and driving the soft brush 503 to move on the shading mirror 64, cleaning the dust or chalk dust on the surface of the shading mirror 64, and ensuring that the laser radar body 8 can be used through the shading mirror 64. The user can operate the multimedia display screen 10 by making gestures towards the laser radar body 8; After use, push the moving blackboard 3 toward the multimedia display screen 10. The same principle as above is used. The movement of the moving blackboard 3 uses the connecting plate 93 and the cross plate 94 to drive the laser radar body 8 to move downward, and the shading mirror 64 uses the return spring 63 to rotate downward. At this time, when the rear side of the shading mirror 64 rotates to a position close to the counterweight block 508, the elastic force of the return spring 504 can be used to push the moving block 502 and the soft brush 503 for next use.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multimedia digital educational interactive device based on laser radar, characterized in that: include: An outer frame (1), a static blackboard (2) and a multimedia display screen (10) are installed on the rear side of the inner cavity of the outer frame (1), a moving blackboard (3) is slidably connected to the inner cavity of the outer frame (1), and a top frame (4) is installed on the top of the outer frame (1); A laser radar lifting assembly (9), wherein the laser radar lifting assembly (9) is arranged in a top frame (4), the laser radar lifting assembly (9) includes a special-shaped groove (91), a special-shaped groove (91) is provided on the rear side of the movable blackboard (3), a movable column (92) is movably sleeved in the inner cavity of the special-shaped groove (91), a connecting plate (93) is fixedly installed on the rear side of the movable column (92), a horizontal plate (94) is fixedly installed on the top of the connecting plate (93), a side plate (7) is fixedly installed on the top of the top frame (4), a square opening (95) is provided on the side plate (7), one end of the horizontal plate (94) passes through the square opening (95) and is connected to the laser radar body (8), and a light shielding protection assembly (6) is provided on the top of the top frame (4).

2. A multimedia digital educational interactive device based on laser radar according to claim 1, characterized in that: The middle portion of the special-shaped groove (91) extends downward and remains horizontal, and the side of the special-shaped groove (91) close to the laser radar body (8) is located obliquely above the other side of the special-shaped groove (91).

3. The laser radar-based multimedia digital educational interactive device according to claim 1, characterized in that: The light-shielding protection assembly (6) comprises a support plate (61), a rotating shaft (62), a return spring (63) and a light-shielding mirror (64); the support plate (61) is fixedly mounted on the top of the top frame (4); the rotating shaft (62) is rotatably connected to the return spring (63); a light-shielding mirror (64) is fixedly mounted on one end of the rotating shaft (62); and the outer side of the rotating shaft (62) is connected to the support plate (61) by means of the return spring (63).

4. The laser radar-based multimedia digital educational interactive device according to claim 3, characterized in that: The bottom of the shading mirror (64) is in contact with the top of the side plate (7) when the return spring (63) is in a free state, and both sides of the support plate (61) are provided with a return spring (63).

5. The laser radar-based multimedia digital educational interactive device according to claim 3, characterized in that: The top of the sunshade mirror (64) is provided with a surface cleaning assembly (5), and the surface cleaning assembly (5) includes a moving groove (501), a moving block (502), a soft brush (503), a return spring (504), a connecting rope (505), a guide rod frame (507) and a counterweight (508). The top of the sunshade mirror (64) is provided with a moving groove (501), the inner cavity of the moving groove (501) is slidably connected to the moving block (502), and the top of the moving block (502) is provided with a (64) A soft brush (503) is provided on the top, the rear side of the moving block (502) is connected to the rear side of the inner cavity of the moving groove (501) by means of a return spring (504), the rear side of the moving block (502) is connected to a connecting rope (505), one end of the connecting rope (505) passes through the rear side of the moving groove (501) and is connected to a counterweight (508), the rear side of the top frame (4) is fixedly mounted with a guide rod frame (507), and the inner cavity of the counterweight (508) is movably sleeved on the outer side of the guide rod frame (507).

6. The laser radar-based multimedia digital educational interactive device according to claim 5, characterized in that: A guide wheel (506) is installed on the rear side of the top frame (4), and a connecting rope (505) is connected to the outside of the guide wheel (506).

7. The laser radar-based multimedia digital educational interactive device according to claim 6, characterized in that: The guide rod frame (507) is in a U-shape as a whole, and the guide rod frame (507) is located below the guide wheel (506).

8. The laser radar-based multimedia digital educational interactive device according to claim 5, characterized in that: Both sides of the light-shielding mirror (64) are provided with a moving groove (501), a moving block (502), a return spring (504), a connecting rope (505) and a counterweight (508).

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