Multimedia teaching equipment with printing function

Abstract

The invention relates to the technical field of multimedia teaching, and discloses multimedia teaching equipment with a printing function, which comprises a fixed base station, the top end of the fixed base station is fixedly connected with a printer, the top end of the printer is fixedly connected with a fixed base plate, and the screen side, away from a multimedia screen, of the top end of the fixed base plate is movably connected with an expansion mechanism. The screen side, close to the multimedia screen, of the top end of the fixed base plate is movably connected with a protection mechanism, lifting mechanisms are fixedly connected to the two sides of the expansion mechanism, and the top end, away from the side face of the multimedia screen, of the protection mechanism is fixedly connected with an adjusting mechanism. Lifting mechanisms on the two sides can be driven to move outwards when a first connecting plate and a second connecting plate slide, a curtain is hung on two connecting pins after expansion, a lifting plate is driven to move upwards through a first screw, a moving block is driven to move upwards when the lifting plate moves upwards, and the moving block is driven to move upwards through a second screw when a second rotating wheel rotates. When the curtain is opened, projection work in different places can be carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of multimedia teaching, and more specifically to a multimedia teaching device with a printing function. Background Art

[0002] Multimedia teaching refers to the process of teaching, in accordance with 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, jointly participate in the whole teaching process, with a variety of media information acting on students, forming a reasonable teaching process structure, to achieve the best teaching effect; Multimedia teaching needs to be assisted by multimedia computers, which can comprehensively process and control various media information such as symbols, languages, texts, sounds, graphics, images, and videos. They can organically combine various elements of multimedia according to teaching requirements and display them through screens or projectors. At the same time, they can add sound coordination as needed, as well as human-computer interaction between users and computers, to complete the teaching or training process. When using multimedia equipment today, images are displayed on a display screen. However, the size of the display screen itself is limited. If it is used in a large lecture hall, students at the back cannot clearly see the images on the display screen, which will affect teaching. If projection is used for teaching, some classrooms cannot use projection equipment normally if projection space is not reserved in advance. When using projection equipment for teaching, the projector needs to be fixed in a certain place and cannot be adjusted intelligently, which affects the teaching quality. In addition, when today's multimedia teaching equipment is used for a long time, if the temperature is too high, it will affect the operation of the equipment, and when a certain stage of teaching is completed, the data cannot be recorded in time. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a multimedia teaching device with a printing function to solve the technical problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multimedia teaching device with a printing function, comprising a fixed base, a printer is fixedly connected to the top of the fixed base, a fixed base is fixedly connected to the top of the printer, a multimedia screen is fixedly connected to the top of the fixed base, an expansion mechanism is movably connected to the screen side of the fixed base away from the multimedia screen, a protective mechanism is movably connected to the screen side of the fixed base near the multimedia screen, a lifting mechanism is fixedly connected to both sides of the expansion mechanism, and an adjustment mechanism is fixedly connected to the top of the protective mechanism away from the side of the multimedia screen; the expansion mechanism comprises a central limit block, a second connecting plate is movably connected to the side of the central limit block close to the multimedia screen, and a first connecting plate is movably connected to the side of the central limit block away from the multimedia screen, a slider is fixedly connected to the bottom ends of the first connecting plate and the second connecting plate, a slide groove for the first connecting plate to move is provided at the top of the fixed base, and a lifting mechanism is fixedly connected to the sides away from the first connecting plate and the second connecting plate.

[0005] In a preferred embodiment, the data in the multimedia screen can be printed in real time by a printer, and three cooling fans are fixedly connected to the top of the expansion mechanism, and the cooling fans are distributed at the center of the bottom of the multimedia screen and on both sides of the bottom of the multimedia screen.

[0006] In a preferred embodiment, side limit blocks are fixedly connected to both sides of the top of the fixed base plate where the center limit block is located, and the two side limit blocks are respectively provided with sliding grooves for allowing the first connecting plate and the second connecting plate to move. When the first connecting plate and the second connecting plate move, the first connecting plate and the second connecting plate are always located in the center limit block.

[0007] In a preferred embodiment, the lifting mechanism includes a connecting block fixedly connected to the expansion mechanism, the connecting block is movably connected to a first screw rod inside, the top end of the connecting block is fixedly connected to a limiting frame, the side surface of the first screw rod is threadedly connected to a lifting plate, and the bottom end of the first screw rod is fixedly connected to a first rotating wheel.

[0008] In a preferred embodiment, the lifting plate is movably connected to a second screw rod inside, a moving block is threadedly connected to the side of the second screw rod, a second rotating wheel is fixedly connected to the bottom end of the second screw rod, and a connecting pin is fixedly connected to the top end of the side of the moving block.

[0009] In a preferred embodiment, the protection mechanism includes two support blocks fixedly connected to both sides of the fixed base plate, the adjacent sides of the two support blocks are fixedly connected to a fixed shaft, the side of the fixed shaft is movably sleeved with a protection plate, the side of the protection plate away from the multimedia screen is fixedly connected with a locking plate, the top of the multimedia screen is fixedly connected with a locking head, and the locking head can lock the locking plate.

[0010] In a preferred embodiment, the adjustment mechanism includes a fixed block fixedly connected to the protection mechanism, the top of the fixed block is provided with a placement groove adapted to the rotating plate, the interior of the rotating plate is movably connected with a connecting shaft, both sides of the connecting shaft are fixedly connected to the interior of the fixed block, both sides of the rotating plate are fixedly connected with elastic balls, and the top of the rotating plate is fixedly connected with a projector.

[0011] In a preferred embodiment, the bottom end of the fixed block is fixedly connected to a fixed frame, the bottom end of the fixed frame is fixedly connected to an electromagnet, the four corners of the top end of the electromagnet are fixedly connected to a limiting rod, the side of the limiting rod is movably connected to a magnetic plate, the top end of the magnetic plate is fixedly connected to a top plate, and the top plate.

[0012] Technical effects and advantages of the present invention: 1. When the first connecting plate and the second connecting plate are slid, the lifting mechanisms on both sides are driven to move outwards. After expansion, the curtain is hung on the two connecting pins. When the first rotating wheel is rotated, the lifting plate is driven to move upwards through the first screw. When the lifting plate moves upwards, the moving block is driven to move upwards. When the second rotating wheel is rotated, the moving block is driven to move upwards through the second screw. The curtain is opened, and projection work in different venues can be performed. 2. The present invention locks the lock plate by a lock head, and the lock plate fits with the screen of the multimedia screen, thereby protecting the multimedia screen. When the lock head is opened, the protection plate rotates around the fixed axis, and the bottom of the protection plate is supported by a fixed base plate. The protection plate is in a flat state, and materials can be placed on the protection plate for easy teaching. When teaching, when encountering content that needs to be recorded, it can be directly printed through a printer, and it can be printed to students for examination materials or key materials for students to facilitate learning; 3. The present invention is provided with a device that generates a magnetic repulsion force between the electromagnet and the magnetic plate after being energized. At this time, the magnetic plate drives the top plate to move upward, and the top plate contacts the rotating plate when moving upward, so that the rotating plate rotates around the connecting axis. When the rotating plate rotates, it will synchronously drive the projector to rotate, adjust the projection angle of the projector, and make the projected image of the projector on the screen clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall front structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the overall back structure of the present invention.

[0015] Figure 3 It is a schematic diagram of the expansion mechanism structure of the present invention.

[0016] Figure 4It is a schematic diagram of the lifting mechanism structure of the present invention.

[0017] Figure 5 It is a schematic diagram of the exploded structure of the lifting mechanism of the present invention.

[0018] Figure 6 This is a schematic diagram of the structure of the present invention when placing a projection screen.

[0019] Figure 7 It is a schematic diagram of the protection mechanism structure of the present invention.

[0020] Figure 8 It is a structural schematic diagram of the protection mechanism of the present invention when it is in the protection state.

[0021] Fig. 9 It is a schematic diagram of the structure of the regulating mechanism of the present invention.

[0022] Fig.10 It is a schematic diagram of the internal structure of the fixing frame of the present invention.

[0023] The accompanying drawings are marked as follows: 1, fixed base; 2, printer; 3, fixed substrate; 4, multimedia screen; 5, expansion mechanism; 501, center limit block; 502, side limit block; 503, first connecting plate; 504, second connecting plate; 505, slider; 6, lifting mechanism; 601, connecting block; 602, limit frame; 603, first screw; 604, first rotating wheel; 605, lifting plate; 606, moving block; 607, second screw; 60 8. Second rotating wheel; 609. Connecting pin; 7. Protective mechanism; 701. Support block; 702. Fixed shaft; 703. Protective plate; 704. Locking piece; 705. Locking head; 8. Adjusting mechanism; 801. Fixed block; 802. Connecting shaft; 803. Rotating plate; 804. Elastic ball; 805. Projector; 806. Fixed frame; 807. Electromagnet; 808. Magnetic plate; 809. Limiting rod; 810. Top plate; 9. Cooling fan. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The multimedia teaching device with printing function involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0025] Reference Figure 1 and Figure 2The present invention provides a multimedia teaching device with a printing function, comprising a fixed base 1, a printer 2 is fixedly connected to the top of the fixed base 1, a fixed base 3 is fixedly connected to the top of the printer 2, a multimedia screen 4 is fixedly connected to the top of the fixed base 3, an expansion mechanism 5 is movably connected to the screen side of the top of the fixed base 3 away from the multimedia screen 4, a protection mechanism 7 is movably connected to the screen side of the top of the fixed base 3 close to the multimedia screen 4, a lifting mechanism 6 is fixedly connected to both sides of the expansion mechanism 5, an adjustment mechanism 8 is fixedly connected to the top of the protection mechanism 7 away from the side of the multimedia screen 4, the data in the multimedia screen 4 can be printed in real time through the printer 2, three cooling fans 9 are fixedly connected to the top of the expansion mechanism 5, and the cooling fans 9 are distributed at the center of the bottom of the multimedia screen 4 and on both sides of the bottom of the multimedia screen 4.

[0026] In the embodiment of the present application, when the multimedia screen 4 is used for teaching, when encountering some important information, it can be directly printed through the printer 2, which is convenient for students and teachers to use. When the multimedia screen 4 is used for a long time, the heat dissipation fan 9 can be used for heat dissipation to ensure that the multimedia screen 4 will not be damaged due to long-term use.

[0027] Reference Figure 3 The expansion mechanism 5 includes a central limit block 501, a side of the central limit block 501 close to the multimedia screen 4 is movably connected to the second connecting plate 504, and a side of the central limit block 501 away from the multimedia screen 4 is movably connected to the first connecting plate 503, the bottom ends of the first connecting plate 503 and the second connecting plate 504 are fixedly connected with a slider 505, the top of the fixed base plate 3 is provided with a sliding groove for the first connecting plate 503 to move, and the sides away from the first connecting plate 503 and the second connecting plate 504 are fixedly connected with a lifting mechanism 6, and the two sides of the top of the fixed base plate 3 where the central limit block 501 is located are fixedly connected with side limit blocks 502, and the insides of the two side limit blocks 502 are respectively provided with sliding grooves for the first connecting plate 503 and the second connecting plate 504 to move. When the first connecting plate 503 and the second connecting plate 504 move, the first connecting plate 503 and the second connecting plate 504 are always located in the central limit block 501.

[0028] In the embodiment of the present application, when the first connecting plate 503 and the second connecting plate 504 are pulled outward, the lifting mechanisms 6 on both sides will be driven to move, so that the curtain can be stretched out, and the first connecting plate 503 and the second connecting plate 504 are sliding, and the slider 505 slides in the sliding groove of the fixed base plate 3 to ensure the stability of the first connecting plate 503 and the second connecting plate 504 when sliding, and when the first connecting plate 503 and the second connecting plate 504 are sliding, the central limit block 501 and the side limit block 502 will limit the upper part of the first connecting plate 503 and the second connecting plate 504 to avoid tipping.

[0029] Reference Figure 4 , Figure 5 as well as Figure 6 The lifting mechanism 6 includes a connecting block 601 fixedly connected to the expansion mechanism 5, the connecting block 601 is internally movably connected with a first screw 603, the top of the connecting block 601 is fixedly connected to a limited position frame 602, the side of the first screw 603 is threadedly connected with a lifting plate 605, the bottom end of the first screw 603 is fixedly connected with a first rotating wheel 604, the lifting plate 605 is internally movably connected with a second screw 607, the side of the second screw 607 is threadedly connected with a moving block 606, the bottom end of the second screw 607 is fixedly connected with a second rotating wheel 608, and the top of the side of the moving block 606 is fixedly connected with a connecting pin 609.

[0030] In the embodiment of the present application, when the first rotating wheel 604 drives the first screw 603 to rotate, the lifting plate 605 will move upward in the limit frame 602. When the lifting plate 605 moves, it drives the moving block 606 to move upward as a whole through the second rotating wheel 608. When the second rotating wheel 608 is rotated again, the second rotating wheel 608 causes the moving block 606 to move upward through the second screw 607. The moving block 606 drives the connecting pin 609 to move upward. At this time, the curtain hung on the connecting pin 609 will move upward, allowing people at a farther distance to see the image content clearly. Therefore, the present application can realize different display methods of the multimedia screen 4 and the projection, and use different teaching environments and teaching contents.

[0031] Reference Figure 7 and Figure 8 The protection mechanism 7 includes two support blocks 701 fixedly connected to both sides of the fixed base plate 3, a fixed shaft 702 is fixedly connected to the sides close to each other of the two support blocks 701, a protection plate 703 is movably sleeved on the side of the fixed shaft 702, a locking piece 704 is fixedly connected to the side of the protection plate 703 away from the multimedia screen 4, and a locking head 705 is fixedly connected to the top of the multimedia screen 4, and the locking head 705 can lock the locking piece 704.

[0032] In the embodiment of the present application, when the protection plate 703 is attached to the multimedia screen 4, the lock head 705 can lock the lock piece 704. When the present application is not in use, the protection plate 703 protects the multimedia screen 4 to prevent damage to the multimedia screen 4. When in use, the lock head 705 is unlocked, and after the lock head 705 releases the lock piece 704, the protection plate 703 can be rotated downward, and the protection plate 703 will be in a horizontal state after being rotated downward, and materials can be placed on it, which is convenient for teaching. Figure 8 Display the status of the lock protection. Figure 7 Displays the status of placing data.

[0033] Reference Fig. 9 and Fig.10The adjusting mechanism 8 includes a fixed block 801 fixedly connected to the protection mechanism 7, a placement groove adapted to the rotating plate 803 is provided at the top of the fixed block 801, a connecting shaft 802 is movably connected inside the rotating plate 803, both sides of the connecting shaft 802 are fixedly connected to the inside of the fixed block 801, elastic balls 804 are fixedly connected to both sides of the rotating plate 803, a projector 805 is fixedly connected to the top of the rotating plate 803, a fixed frame 806 is fixedly connected to the bottom end of the fixed block 801, an electromagnet 807 is fixedly connected to the bottom end of the fixed frame 806, the four corners of the top of the electromagnet 807 are fixedly connected to a limiting rod 809, a magnetic plate 808 is movably connected to the side of the limiting rod 809, a top plate 810 is fixedly connected to the top of the magnetic plate 808, the top of the top plate 810 is arc-shaped, and the top of the top plate 810 contacts the bottom end of the rotating plate 803.

[0034] In the embodiment of the present application, when the projector 805 is required to perform projection, the electromagnet 807 is controlled to be energized, and the magnetic repulsion between the electromagnet 807 and the magnetic plate 808 causes the magnetic plate 808 to drive the top plate 810 to move upward, and the top plate 810 is in contact with the rotating plate 803, so that the rotating plate 803 rotates upward around the connecting shaft 802, and the rotating plate 803 drives the projector 805 to rotate when rotating, and the angle of the projector 805 during projection can be adjusted to adjust the image. After projection, the electromagnet 807 is powered off, so the magnetic plate 808 will move downward under the action of gravity, and the rotating plate 803 will enter the fixed block 801 again for easy storage, and elastic balls 804 are provided on both sides of the rotating plate 803. When the rotating plate 803 is pressed into the placement slot of the fixed block 801, the elastic balls 804 will be compressed, thereby locking the position of the rotating plate 803 to prevent the rotating plate 803 from shaking when the device moves.

[0035] The working principle of the present invention is as follows: when the lock 705 is unlocked, the lock 705 cannot fix the lock plate 704, and the protection plate 703 is rotated. After the protection plate 703 rotates around the fixed axis 702, the bottom end of the protection plate 703 contacts the top end of the fixed base plate 3. At this time, teaching can be carried out through the multimedia screen 4, and materials can be placed above the protection plate 703. During teaching, some key teaching contents can be directly printed through the printer 2, making the teaching process more convenient. When the multimedia screen 4 is used for a long time, the cooling fan 9 is turned on for heat dissipation, ensuring that the multimedia screen 4 can be used for a long time without failure. When used in a large classroom, the first connecting plate 503 and the second connecting plate 504 are pulled. When the first connecting plate 503 and the second connecting plate 504 are pulled, the lifting mechanisms 6 on both sides of the multimedia screen 4 are driven to move outward. After moving, the curtain is hung on the connecting pin 609. After hanging, the first rotating wheels 604 on both sides are rotated. When the first rotating wheels 604 rotate, the first screw 603 is driven to rotate. When the first screw 603 rotates, the lifting plate 605 is driven to move upward. When the lifting plate 605 moves upward, the moving block 606 is driven to move upward. The second rotating wheel 608 is rotated. When the second rotating wheel 608 rotates, the moving block 606 is moved upward through the second screw 607. The moving block 606 moves upward and drives the connecting pin 609 to move upward, thereby causing the curtain to move upward as a whole. Figure 6 , the screen area is large, so that the personnel behind can see the information clearly; When the image is displayed through the screen, the electromagnet 807 is energized. When the electromagnet 807 is energized, a magnetic repulsion force is generated between it and the magnetic plate 808. Therefore, the magnetic plate 808 drives the top plate 810 to move upward. After the top plate 810 moves upward, it contacts the rotating plate 803, thereby causing the rotating plate 803 to rotate upward around the connecting shaft 802. When the rotating plate 803 rotates, it drives the projector 805 to rotate. The angle of the projector 805 during projection can be adjusted to adjust the image. After the projection, the electromagnet 807 is powered off. Therefore, under the action of gravity, the magnetic plate 808 moves downward. At this time, the rotating plate 803 enters the fixed block 801 again for easy storage. The rotating plate 803 can be pressed into the fixed block 801 manually to prevent the adjustment mechanism 8 from rotating as the protective plate 703 rotates, thereby improving stability.

[0036] Finally: 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 with a printing function, comprising a fixed base (1), characterized in that: The top of the fixed base (1) is fixedly connected to a printer (2), the top of the printer (2) is fixedly connected to a fixed base plate (3), the top of the fixed base plate (3) is fixedly connected to a multimedia screen (4), the top of the fixed base plate (3) is movably connected to an expansion mechanism (5) on the screen side away from the multimedia screen (4), the top of the fixed base plate (3) is movably connected to a protection mechanism (7) on the screen side close to the multimedia screen (4), both sides of the expansion mechanism (5) are fixedly connected to lifting mechanisms (6), and the top of the protection mechanism (7) is fixedly connected to an adjustment mechanism (8) on the side away from the multimedia screen (4); The expansion mechanism (5) comprises a central limiting block (501), a side of the central limiting block (501) close to the multimedia screen (4) being movably connected to a second connecting plate (504), and a side of the central limiting block (501) away from the multimedia screen (4) being movably connected to a first connecting plate (503), the bottom ends of the first connecting plate (503) and the second connecting plate (504) being fixedly connected to a slider (505), the top end of the fixed base plate (3) being provided with a slide groove for allowing the first connecting plate (503) to move, and the sides of the first connecting plate (503) and the second connecting plate (504) away from each other being fixedly connected to a lifting mechanism (6).

2. The multimedia teaching device with printing function according to claim 1, characterized in that: The data in the multimedia screen (4) can be printed in real time by means of a printer (2); three cooling fans (9) are fixedly connected to the top of the expansion mechanism (5); the cooling fans (9) are distributed at the center of the bottom of the multimedia screen (4) and at both sides of the bottom of the multimedia screen (4).

3. The multimedia teaching device with printing function according to claim 1, characterized in that: Side limit blocks (502) are fixedly connected to both sides of the top of the fixed base plate (3) where the central limit block (501) is located. The two side limit blocks (502) are respectively provided with sliding grooves for allowing the first connecting plate (503) and the second connecting plate (504) to move. When the first connecting plate (503) and the second connecting plate (504) move, the first connecting plate (503) and the second connecting plate (504) are always located in the central limit block (501).

4. The multimedia teaching device with printing function according to claim 1, characterized in that: The lifting mechanism (6) comprises a connecting block (601) fixedly connected to the expansion mechanism (5); a first screw rod (603) is movably connected inside the connecting block (601); the top end of the connecting block (601) is fixedly connected to a limit frame (602); a lifting plate (605) is threadedly connected to the side of the first screw rod (603); and the bottom end of the first screw rod (603) is fixedly connected to a first rotating wheel (604).

5. The multimedia teaching device with printing function according to claim 4, characterized in that: The lifting plate (605) is movably connected to a second screw rod (607) inside, a side surface of the second screw rod (607) is threadedly connected to a moving block (606), a bottom end of the second screw rod (607) is fixedly connected to a second rotating wheel (608), and a top end of the side surface of the moving block (606) is fixedly connected to a connecting pin (609).

6. The multimedia teaching device with printing function according to claim 1, characterized in that: The protection mechanism (7) comprises two support blocks (701) fixedly connected to two sides of the fixed base plate (3); the adjacent sides of the two support blocks (701) are fixedly connected to a fixed shaft (702); the side of the fixed shaft (702) is movably sleeved with a protection plate (703); the side of the protection plate (703) away from the multimedia screen (4) is fixedly connected to a locking piece (704); the top of the multimedia screen (4) is fixedly connected to a locking head (705); the locking head (705) can lock the locking piece (704).

7. The multimedia teaching device with printing function according to claim 1, characterized in that: The adjustment mechanism (8) comprises a fixed block (801) fixedly connected to the protection mechanism (7); a placement groove adapted to the rotating plate (803) is provided at the top of the fixed block (801); a connecting shaft (802) is movably connected inside the rotating plate (803); two sides of the connecting shaft (802) are fixedly connected to the inside of the fixed block (801); elastic balls (804) are fixedly connected to the two sides of the rotating plate (803); and a projector (805) is fixedly connected to the top of the rotating plate (803).

8. The multimedia teaching device with printing function according to claim 7, characterized in that: A fixing frame (806) is fixedly connected to the bottom end of the fixing block (801), an electromagnet (807) is fixedly connected to the bottom end of the fixing frame (806), the four corners of the top end of the electromagnet (807) are fixedly connected to limit rods (809), the side of the limit rod (809) is movably connected to a magnetic plate (808), the top end of the magnetic plate (808) is fixedly connected to a top plate (810), and the top plate (810) is fixedly connected to the top end.

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