Adjustable demonstration screen for teaching equipment
By introducing structures such as a movable base and a hinge into the demonstration screen, the adjustable tilt angle of the screen is achieved, solving the problem that traditional demonstration screens cannot be adjusted, and improving students' viewing experience and classroom participation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING ZHIJIAO TECH CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional display screens are fixed in place and cannot be adjusted in terms of tilt angle, which can cause problems such as students in the back row not being able to see the content or glare and obstruction when teachers are presenting.
An adjustable demonstration screen was designed, comprising a movable base, a support frame, a rotating groove, a rotating shaft, a connecting plate, and a limiting plate. By pulling the pulling plate, the limiting plate is moved out of the limiting groove, releasing the rotating shaft from its limit, thus realizing the tilt angle adjustment of the demonstration screen. Combined with structures such as springs, guide blocks, and sliding blocks, the stability and safety of the adjustment are ensured.
The screen angle is adjustable, allowing teachers to adjust it according to the teaching content and student seating height to avoid glare or obstruction, ensuring clear viewing for students and enhancing classroom participation.
Smart Images
Figure CN224551232U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of display screen technology, and in particular to an adjustable demonstration screen for teaching equipment. Background Technology
[0002] Display screens are the core components of electronic devices used to convert electrical signals into visual images. Essentially, they control the emission, reflection, or transmission of light through physical or electronic means to present visual information such as text, graphics, and videos. Among them, teaching demonstration screens are visualization display devices designed specifically for educational scenarios. Their core function is to assist teachers in conveying knowledge through multimedia formats such as images, videos, and text, while also supporting interactive operations to enhance classroom participation.
[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: Traditional display screens are usually fixed and cannot be adjusted according to classroom layout, student seat height or teacher presentation needs, resulting in students in the back row not being able to see the content clearly, or problems such as glare and obstruction during teacher presentations. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the traditional demonstration screen in the prior art is usually fixed and cannot be adjusted according to the needs. Therefore, we propose an adjustable demonstration screen for teaching equipment.
[0005] To achieve the above objectives, this application adopts the following technical solution: an adjustable demonstration screen for teaching equipment, including a movable base, a support frame fixedly connected to the top of the movable base, a rotating groove opened at one end of the movable base, a rotating shaft rotatably connected inside the rotating groove, a connecting plate fixedly connected to the surface of the rotating shaft, a demonstration screen body installed at one end of the connecting plate, circular structural grooves opened on both sides of one end of the support frame, a movable rod slidably connected inside the circular structural groove, a pulling plate fixedly connected to one side of the movable rod, a limiting plate fixedly connected to one end of the pulling plate, limiting grooves opened on both sides of the rotating shaft, the limiting grooves being circumferentially distributed on both sides of the rotating shaft, and the surface of the limiting plate being slidably connected to the inside of the limiting groove.
[0006] Preferably, a spring is slidably connected to the surface of the movable rod, one end of the spring is fixedly connected to the movable rod, and the other end of the spring is fixedly connected to one side of the interior of the circular structural groove.
[0007] Preferably, the movable rod has guide grooves at both the top and bottom of its surface, and guide blocks that cooperate with the guide grooves are fixedly connected to the top and bottom of one side of the circular structural groove. The surface of the guide block is slidably connected to the inside of the guide groove.
[0008] Preferably, the surface of the rotating shaft is provided with a sliding groove, and a sliding block is fixedly connected to one end of the rotating groove. The surface of the sliding block is slidably connected to the inside of the sliding groove.
[0009] Preferably, a handle is fixedly connected to one end of the main body of the demonstration screen near the support frame.
[0010] Preferably, an elastic protective pad is installed at the bottom of the main body of the demonstration screen, and the elastic protective pad is "L" shaped.
[0011] Preferably, the movable base has three trapezoidal supports fixedly connected to one end near the main body of the demonstration screen.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] In this invention, by pulling the pull plate, the pull plate moves the limiting plate out of the limiting groove. At this time, the limiting of the rotating shaft is released, and the rotating shaft can be rotated to make the main body of the demonstration screen rotate, thereby adjusting the tilt angle of the main body of the demonstration screen. After the adjustment is completed, the movement of the pull plate is released, and the pull plate moves the limiting plate back into the limiting groove, so that the rotating shaft is limited again. Through this setting, the tilt angle of the main body of the demonstration screen can be adjusted. Teachers can adjust the screen angle according to the teaching content and the height of students' seats to avoid glare or obstruction, ensure students can see clearly, and improve classroom participation. Attached Figure Description
[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:
[0015] Figure 1 This is a schematic diagram of the main structure of the demonstration screen of this utility model;
[0016] Figure 2 This is a schematic diagram of the support frame structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the internal structure of the circular groove of this utility model;
[0018] Figure 4 This is a schematic diagram of the rotating shaft structure of this utility model;
[0019] Legend: 1. Movable base; 2. Support frame; 3. Rotating groove; 4. Rotating shaft; 5. Connecting plate; 6. Demonstration screen body; 7. Circular structural groove; 8. Movable rod; 9. Pull plate; 10. Limiting plate; 11. Limiting groove; 12. Spring; 13. Guide groove; 14. Guide block; 15. Sliding groove; 16. Sliding block; 17. Handle; 18. Elastic protective pad; 19. Trapezoidal bracket. Detailed Implementation
[0020] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0021] Reference Figures 1-4 As shown, this utility model provides a technical solution: an adjustable demonstration screen for teaching equipment, including a movable base 1, a support frame 2 fixedly connected to the top of the movable base 1, a rotating groove 3 opened at one end of the movable base 1, a rotating shaft 4 rotatably connected inside the rotating groove 3, a connecting plate 5 fixedly connected to the surface of the rotating shaft 4, a demonstration screen body 6 installed at one end of the connecting plate 5, circular structural grooves 7 opened on both sides of one end of the support frame 2, a movable rod 8 slidably connected inside the circular structural groove 7, a pulling plate 9 fixedly connected to one side of the movable rod 8, a limiting plate 10 fixedly connected to one end of the pulling plate 9, limiting grooves 11 opened on both sides of the rotating shaft 4, the limiting grooves 11 being distributed circumferentially on both sides of the rotating shaft 4, and the limiting plate 10... The surface of the screen slides in connection with the inside of the limiting groove 11. By pulling the pull plate 9, the pull plate 9 drives the limiting plate 10, causing the limiting plate 10 to move out of the inside of the limiting groove 11. At this time, the limiting of the rotating shaft 4 is released, and the rotating shaft 4 can be rotated to drive the main body of the demonstration screen 6 to rotate, thereby adjusting the tilt angle of the main body of the demonstration screen 6. After the adjustment is completed, the movement of the pull plate 9 is released, causing the pull plate 9 to drive the limiting plate 10 back into the inside of the limiting groove 11, so that the rotating shaft 4 is limited again. Through this setting, the tilt angle of the main body of the demonstration screen 6 can be adjusted. Teachers can adjust the screen angle according to the teaching content and the height of the students' seats to avoid glare or obstruction, ensure that students can see clearly, and improve classroom participation.
[0022] Reference Figure 3 As shown in this embodiment: a spring 12 is slidably connected to the surface of the movable rod 8. One end of the spring 12 is fixedly connected to the movable rod 8, and the other end of the spring 12 is fixedly connected to one side of the circular structural groove 7. By setting the spring 12, the elasticity of the spring 12 abuts against the movable rod 8, which can limit the movement of the elastic protective pad 18, and at the same time, the movable rod 8 can be automatically reset.
[0023] Reference Figure 3 As shown in this embodiment: the movable rod 8 has guide grooves 13 on both the top and bottom of its surface. The top and bottom of one side of the circular structural groove 7 are fixedly connected to guide blocks 14 that cooperate with the guide grooves 13. The surface of the guide block 14 is slidably connected to the inside of the guide groove 13. By allowing the guide block 14 to slide inside the guide groove 13, linear guidance can be provided for the movement of the circular structural groove 7, so that the circular structural groove 7 will not deviate when it moves.
[0024] Reference Figure 4 As shown in this embodiment: a sliding groove 15 is provided on the surface of the rotating shaft 4, and a sliding block 16 is fixedly connected to one end of the rotating groove 3. The surface of the sliding block 16 is slidably connected to the inside of the sliding groove 15. By allowing the sliding block 16 to slide inside the sliding groove 15, the rotation of the rotating shaft 4 can be made more stable when the user adjusts the main body 6 of the demonstration screen.
[0025] Reference Figure 3 As shown in this implementation scheme: a handle 17 is fixedly connected to one end of the demonstration screen body 6 near the support frame 2. By setting the handle 17, the user can have a better point of leverage when adjusting the demonstration screen body 6, avoiding the user's hand force from directly acting on the surface of the demonstration screen body 6, which could cause damage to the demonstration screen body 6.
[0026] Reference Figure 3 As shown in this embodiment: an elastic protective pad 18 is installed at the bottom of the main body 6 of the demonstration screen. The elastic protective pad 18 is "L" shaped. By setting the elastic protective pad 18, the bottom corners of the main body 6 of the demonstration screen can be protected, preventing the main body 6 of the demonstration screen from being adjusted too much and bumping into the support frame 2.
[0027] Reference Figure 3 As shown in this implementation scheme: three trapezoidal supports 19 are fixedly connected to one end of the mobile base 1 near the main body 6 of the demonstration screen. By setting the trapezoidal supports 19, the equipment can be stabilized, and the equipment can be prevented from tipping over due to the imbalance of the equipment weight caused by the adjustment of the angle of the main body 6 of the demonstration screen.
[0028] Working principle: By pulling the pull plate 9, the pull plate 9 moves the limiting plate 10, causing the limiting plate 10 to move out of the limiting groove 11. At this time, the limiting of the rotating shaft 4 is released, and the rotating shaft 4 can be rotated, causing the main body of the demonstration screen 6 to rotate, thereby adjusting the tilt angle of the main body of the demonstration screen 6. After the adjustment is completed, the movement of the pull plate 9 is released, causing the pull plate 9 to move the limiting plate 10 back into the limiting groove 11, so that the rotating shaft 4 is limited again. Through this setting, the tilt angle of the main body of the demonstration screen 6 can be adjusted. Teachers can adjust the screen angle according to the teaching content and the students' seat height to avoid glare or obstruction, ensure students can see clearly, and improve classroom participation. By setting the spring 12, the elasticity of the spring 12 abuts against the movable rod 8, which can limit the movement of the elastic protective pad 18, and at the same time, the movable rod 8 can be automatically reset. The guide block 14 sliding inside the guide groove 13 provides linear guidance for the movement of the circular structure groove 7, preventing the circular structure groove 7 from shifting during movement. The sliding block 16 sliding inside the sliding groove 15 makes the rotation of the shaft 4 more stable when the user adjusts the main body of the demonstration screen 6. The handle 17 provides the user with a better grip point when adjusting the main body of the demonstration screen 6, preventing the user's hand force from directly acting on the surface of the main body of the demonstration screen 6 and causing damage. The elastic protective pad 18 protects the bottom corners of the main body of the demonstration screen 6, preventing the main body of the demonstration screen 6 from colliding with the support frame 2 due to excessive adjustment angle. The trapezoidal bracket 19 stabilizes the equipment and prevents the equipment from tipping over due to imbalance caused by the adjusted angle of the main body of the demonstration screen 6.
[0029] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. An adjustable demonstration screen for teaching equipment, characterized in that, Includes a movable base (1): a support frame (2) is fixedly connected to the top of the movable base (1), a rotating groove (3) is opened at one end of the movable base (1), a rotating shaft (4) is rotatably connected inside the rotating groove (3), a connecting plate (5) is fixedly connected to the surface of the rotating shaft (4), a demonstration screen body (6) is installed at one end of the connecting plate (5), a circular structural groove (7) is opened on both sides of one end of the support frame (2), a movable rod (8) is slidably connected inside the circular structural groove (7), a pulling plate (9) is fixedly connected to one side of the movable rod (8), a limiting plate (10) is fixedly connected to one end of the pulling plate (9), a limiting groove (11) is opened on both sides of the rotating shaft (4), the limiting groove (11) is circumferentially distributed on both sides of the rotating shaft (4), and the surface of the limiting plate (10) is slidably connected to the inside of the limiting groove (11).
2. The adjustable demonstration screen for teaching equipment according to claim 1, characterized in that: A spring (12) is slidably connected to the surface of the movable rod (8). One end of the spring (12) is fixedly connected to the movable rod (8), and the other end of the spring (12) is fixedly connected to one side of the circular structural groove (7).
3. The adjustable demonstration screen for teaching equipment according to claim 1, characterized in that: The movable rod (8) has guide grooves (13) on the top and bottom of its surface. The top and bottom of one side of the circular structure groove (7) are fixedly connected to guide blocks (14) that are used in conjunction with the guide grooves (13). The surface of the guide blocks (14) is slidably connected to the inside of the guide grooves (13).
4. The adjustable demonstration screen for teaching equipment according to claim 1, characterized in that: The rotating shaft (4) has a sliding groove (15) on its surface. A sliding block (16) is fixedly connected to one end of the rotating groove (3). The surface of the sliding block (16) is slidably connected to the inside of the sliding groove (15).
5. The adjustable demonstration screen for teaching equipment according to claim 1, characterized in that: A handle (17) is fixedly connected to one end of the main body (6) of the demonstration screen near the support frame (2).
6. The adjustable demonstration screen for teaching equipment according to claim 1, characterized in that: The bottom of the main body (6) of the demonstration screen is equipped with an elastic protective pad (18), which is "L" shaped.
7. The adjustable demonstration screen for teaching equipment according to claim 1, characterized in that: The mobile base (1) is fixedly connected to three trapezoidal brackets (19) at one end near the main body (6) of the demonstration screen.