Auxiliary display device for computer teaching

Abstract

The utility model relates to the technical field of display devices, in particular to an auxiliary display device for computer teaching, which comprises a base, a plurality of universal wheels are distributed and fixed at the lower end of the base, a notch is further arranged on one side of the base, and two symmetrically arranged hydraulic cylinders are fixed at the upper end of the base. And telescopic piston rods are arranged in the hydraulic cylinders, the same table top is fixed to the ends of the two piston rods, a center screen is arranged at the center of one side of the table top, and the back of the center screen is fixed to the surface of the table top through a support. According to the scheme, the center screen and the side screens on the two sides can horizontally move through the threaded sleeves and the limiting rods driven by the motors, the center screen and the side screens can be combined into a large screen and can also be separated for independent display, the playing and watching range is expanded through the design, the angles of the side screens can be adjusted according to the distribution positions of students, and the teaching effect is improved. Therefore, all students can clearly see the screen content, and the teaching effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, and in particular to a computer teaching aid display device. Background Technology

[0002] Computer-aided teaching demonstration devices are equipment used in the education field to help teachers teach computer-related courses more effectively. These devices typically consist of both hardware and software components and can provide a variety of functions to enhance teaching effectiveness.

[0003] Display screens are common auxiliary display devices. Connected to a computer, they can play relevant teaching content. For example, Chinese Patent Publication No. CN212933878U discloses a teaching aid for computer-based financial management that facilitates data model display. This aid includes a main body, a data display panel, and indicator lines. An acrylic support frame is integrated into the front left side of the main body, and a label is installed inside the frame. A limit block is fixed to the upper rear side of the acrylic support frame, and a first connecting rod is movably connected to the outer side of the frame. A fixing frame is fixed to the front center of the main body, and a data model panel is integrated inside this frame. A data model plastic sheet is movably connected to the front of the data model panel. This teaching aid for computer-based financial management that facilitates data model display can quickly adjust the data model display mechanism according to data changes, intuitively display data comparisons, and easily replace data labels, making it simple to operate.

[0004] Currently, in computer teaching, some content is still presented mainly through electronic screen playback. This allows students to more intuitively observe the changes in various computer content. This type of playback structure is an auxiliary display device. Conventional screen playback display structures are basically based on a single screen, which can only be clearly viewed by students in the area directly in front. If the playback display area is wide and there are many students in the same row, students on the sides will be too far to the side and will have difficulty clearly viewing the screen content, which greatly affects the display effect. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a computer-aided teaching and demonstration device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a computer teaching aid display device, including a base, with several casters fixedly distributed at the lower end of the base, a notch provided on one side of the base, and two symmetrically arranged hydraulic cylinders fixed at the upper end of the base. The hydraulic cylinders are equipped with piston rods for extension and retraction, and the ends of the two piston rods are fixed to the same platform.

[0008] A central screen is provided at the center of one side of the table surface. The back of the central screen is fixed to the surface of the table surface by a bracket. A pad made of silicone material is provided on the back of the central screen and fixed to the table surface.

[0009] The tabletop has strip grooves on both sides, and a limiting hole penetrating the tabletop is opened at the bottom of the strip groove. A limiting rod is slidably installed inside the limiting hole, and a support frame is installed at the upper end of the limiting rod. Side screens are fixed inside the support frame, and the two side screens are the same size as the center screen.

[0010] In detail, a bearing seat is fixed to one side of the lower end of the platform by a bracket, and a shaft is rotatably installed inside the bearing seat. The surface of the shaft is provided with external threads, and the external threads are provided in two sections on the shaft and are arranged in opposite directions.

[0011] In detail, the external thread has a threaded sleeve on its surface, and the outer ring wall of the threaded sleeve is fixedly assembled with the lower end of the limiting rod.

[0012] In detail, a motor is provided at the end of the shaft away from the bearing seat. The outer wall of the motor is fixedly assembled to the lower end of the platform through a bracket. The motor has a drive shaft inside, and the end of the shaft is fixedly connected to the end of the shaft through a coupling for transmission.

[0013] In detail, a connecting plate is fixed to the upper end of the limiting rod, a bearing is installed on the upper end of the connecting plate, a spindle is provided with an interference fit on the inner ring wall of the bearing, and the upper end of the spindle is fixedly assembled with the lower end of the support frame.

[0014] In detail, a positioning plate is fixed to one side of the upper end of the connecting plate, a positioning sleeve is provided through the surface of the positioning plate, and a positioning pin is slidably sleeved inside the positioning sleeve.

[0015] In detail, a spring is wound around the surface of the positioning pin, and the two ends of the spring are fixedly assembled with the end of the positioning pin and the end face of the positioning sleeve, respectively.

[0016] In detail, the surface of the mandrel is fixedly distributed with several positioning seats, and the end of the positioning pin away from the spring is inserted and docked with the inside of the positioning seat.

[0017] The design scheme proposed in this utility model has the following beneficial effects in application:

[0018] 1. This solution uses the piston rod extension and retraction of an electric hydraulic cylinder to flexibly adjust the height of the table to meet the needs of different users or the height requirements of the screen playback. This design not only improves the comfort of use, but also makes the device adaptable to various teaching scenarios, enhancing the versatility and practicality of the equipment.

[0019] 2. As described in 1, the central screen and the two side screens can move horizontally through the threaded sleeves and limiting rods driven by the motor. They can be combined into one large screen or displayed separately. This design not only expands the viewing range, but also allows the angle of the side screens to be adjusted according to the distribution of students, ensuring that all students can clearly see the screen content and improving the teaching effect.

[0020] 3. As described in section 2, the design of the spindle, bearings, and positioning pins allows the edge screen to rotate flexibly and be fixed at the required angle. The cooperation between the positioning pins and the positioning seats ensures the stability of the screen at different angles. This design is not only simple and quick to operate, but also meets the screen angle requirements of different teaching scenarios, enhancing the flexibility and practicality of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall rear structure of this utility model;

[0023] Figure 3 This is a bottom view of the overall bottom of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the strip groove of this utility model;

[0025] Figure 5 This is a partially enlarged schematic diagram of the connecting plate portion of this utility model;

[0026] Figure 6 This is an enlarged schematic diagram of point A of this utility model.

[0027] In the diagram: 1. Base; 11. Casters; 12. Hydraulic cylinder; 13. Tabletop; 14. Center screen; 15. Pad; 16. Limiting hole; 17. Limiting rod; 18. Support frame; 19. Side screen; 110. Strip groove; 2. Shaft seat; 21. Shaft; 22. External thread; 23. Threaded sleeve; 24. Motor; 3. Connecting plate; 31. Bearing; 32. Mandrel; 33. Positioning plate; 34. Positioning sleeve; 35. Positioning pin; 36. Spring; 37. Positioning seat. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figures 1-6 A computer-aided teaching demonstration device includes a base 1. Several casters 11, model DW series, are fixedly distributed at the lower end of the base 1 and have a built-in braking function. A notch is provided on one side of the base 1 to reduce the space occupied by the base 1. When the user sits on the tabletop 13 to write or rest, their legs can be placed in the notch, preventing the base 1 from obstructing leg placement. Two symmetrically arranged hydraulic cylinders 12 are fixed at the upper end of the base 1. Each hydraulic cylinder 12 has a piston rod for extension and retraction. The ends of the two piston rods are fixed to the same tabletop 13. The hydraulic cylinders 12 are electric cylinders, allowing for electric operation to adjust the height of the piston rods. The extension and retraction of the piston rods adjusts the height of the tabletop 13, thus facilitating reasonable adjustment according to different user heights or screen display heights.

[0030] A central screen 14 is provided along the center of one side of the tabletop 13. The back of the central screen 14 is fixed to the surface of the tabletop 13 by a bracket. A pad 15, made of silicone material, is provided on the back of the central screen 14 and fixed to the tabletop 13. The central screen 14 is positioned so that it faces the viewing area directly in front. The pad 15 can be used to place objects or instruments and computer equipment used for screen playback operation.

[0031] Both sides of the tabletop 13 are provided with strip grooves 110. The bottom of the strip grooves 110 is provided with limiting holes 16 that penetrate the tabletop 13. A limiting rod 17 is slidably provided inside the limiting hole 16. A support frame 18 is provided at the upper end of the limiting rod 17. Side screens 19 are fixed inside the support frame 18. The two side screens 19 are the same size as the center screen 14. Both side screens 19 and the center screen 14 are frameless screens. They can be joined together to form a large whole screen, or they can be separated. By rotating the side screens 19 on both sides outward, the same image can be played on three screens at the same time, thereby increasing and expanding the viewing range.

[0032] It should be further explained that a bearing seat 2 is fixed to one side of the lower end of the tabletop 13 by a bracket. A shaft 21 is rotatably arranged inside the bearing seat 2. The surface of the shaft 21 is provided with an external thread 22. The external thread 22 is provided in two sections on the shaft 21 and is arranged in opposite directions. By the opposite arrangement of the two external threads 22, the two side screens 19 can move closer or further away from each other at the same time when they are moved.

[0033] It should be further explained that the external thread 22 is threadedly connected to the threaded sleeve 23. The outer ring wall of the threaded sleeve 23 is fixedly assembled with the lower end of the limiting rod 17. When the side screen 19 needs to be moved, the external thread 22 is linked by the rotation of the shaft 21, and the threaded sleeve 23 is moved. The limiting rod 17 slides in the limiting hole 16, so that the side screen 19 can be moved horizontally and stably.

[0034] It should be further noted that a motor 24 is installed at the end of the shaft 21 away from the bearing 2. The outer wall of the motor 24 is fixedly assembled to the lower end of the platform 13 through a bracket. The motor 24 has a drive shaft inside. The end of the shaft is fixedly connected to the end of the shaft 21 through a coupling. The motor 24 is a stepper motor and is connected to a forward and reverse switch through wires. The forward and reverse switch is model HY2-8, which allows the shaft of the motor 24 to drive the shaft 21 to rotate stably in both directions.

[0035] It should be further explained that a connecting plate 3 is fixed to the upper end of the limiting rod 17, and a bearing 31 is installed on the upper end of the connecting plate 3. A spindle 32 is interference-fitted to the inner ring wall of the bearing 31. The upper end of the spindle 32 is fixedly assembled to the lower end of the support frame 18. By rotating the spindle 32 based on the bearing 31, the side screen 19 can rotate. Thus, the side screen 19 can be rotated outward according to the distribution position of the students, so that students who are closer to the side can also clearly see the screen content.

[0036] It should be further explained that a positioning plate 33 is fixed on one side of the upper end of the connecting plate 3. A positioning sleeve 34 is provided through the surface of the positioning plate 33. A positioning pin 35 is slidably sleeved inside the positioning sleeve 34. The positioning pin 35 is a manual operation structure, which is simple and quick to operate. After the side screen 19 is rotated to a certain angle, the positioning pin 35 is inserted and docked with the corresponding positioning seat 37 to fix the angle of the side screen 19.

[0037] It should be further noted that a spring 36 is wound around the surface of the positioning pin 35. The two ends of the spring 36 are fixedly assembled with the end of the positioning pin 35 and the end face of the positioning sleeve 34, respectively. The spring 36 has a reset effect, which can ensure that the positioning pin 35 can be reset normally after being stretched.

[0038] It should be further explained that a number of positioning seats 37 are fixedly distributed on the surface of the spindle 32. The end of the positioning pin 35 away from the spring 36 is inserted and docked with the inside of the positioning seat 37. There are twelve positioning seats 37, which are evenly distributed in a ring along the surface of the spindle 32. By inserting and cooperating the positioning pin 35 with any one of the positioning seats 37, the angle adjustment and fixation of the edge screen 19 can be realized.

[0039] Operating Method: This solution utilizes three borderless screens, including a central screen 14 and two side screens 19, to achieve flexible combination and expanded display. The side screens 19 are fixed to the limiting rods 17 via support frames 18. The limiting rods 17 can slide horizontally within the limiting holes 16, and their movement is driven by the shaft 21. The surface of the shaft 21 has two reverse threads, namely external threads 22, which cooperate with threaded sleeves 23. When the motor 24 drives the shaft 21 to rotate forward and backward, the threaded sleeves 23 on both sides move synchronously towards or away from each other, thereby controlling the unfolding or retraction of the side screens 19. When unfolded, the three screens can be spliced ​​into one large screen to enhance the display range. When separated, the side screens 19 can rotate independently. Through the cooperation of bearings 31 and spindles 32, they can adapt to different viewing angles. In addition, the angle of the side screens 19 is fixed by the insertion of positioning pins 35 and positioning seats 37 to ensure stability. This design is suitable for multi-angle content display in teaching scenarios, enhancing the viewing experience for students.

[0040] The rotation function of the side screen 19 is achieved through the cooperation of the spindle 32 and the bearing 31. The inner ring of the bearing 31 is fixed to the spindle 32, and the outer ring is connected to the connecting plate 3, so that the screen can rotate freely around the spindle 32. When the screen rotates to the target angle, the user manually pulls out the positioning pin 35 (overcoming the elastic force of the spring 36) and inserts it into the positioning seat 37 distributed in a ring on the surface of the spindle 32 to complete the angle fixation. There are twelve positioning seats 37 evenly distributed, providing adjustment accuracy in 30° increments to meet the needs of multi-angle display. The reset function of the spring 36 ensures that the positioning pin 35 remains in the inserted state when not in operation, preventing the screen from deflecting accidentally. This mechanism simplifies the operation process (manual pull design) and ensures the stability of the screen during playback. It is especially suitable for classroom environments where students are scattered, ensuring that audiences on the side can also clearly see the content.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A computer-aided teaching demonstration device, comprising a base (1), characterized in that: The lower end of the base (1) is fixed with several casters (11), and a notch is provided on one side of the base (1). The upper end of the base (1) is fixed with two symmetrically arranged hydraulic cylinders (12). The hydraulic cylinders (12) are provided with piston rods for extension and retraction inside, and the ends of the two piston rods are fixed with the same platform (13). The tabletop (13) has a central screen (14) at the center of one side. The back of the central screen (14) is fixed to the surface of the tabletop (13) by a bracket. A pad (15) fixed to the tabletop (13) is provided on the back of the central screen (14). The pad (15) is made of silicone material. The tabletop (13) has a strip groove (110) on both sides. The bottom of the strip groove (110) has a limiting hole (16) that penetrates the tabletop (13). A limiting rod (17) is slidably provided inside the limiting hole (16). A support frame (18) is provided at the upper end of the limiting rod (17). A side screen (19) is fixed inside the support frame (18). The two side screens (19) are the same size as the center screen (14).

2. The computer-aided teaching demonstration device according to claim 1, characterized in that: The lower end of the platform (13) is fixed with a bearing seat (2) by a bracket. The bearing seat (2) is rotatably provided with a shaft (21). The surface of the shaft (21) is provided with an external thread (22). The external thread (22) is provided with two sections on the shaft (21) and is arranged in opposite directions.

3. The computer-aided teaching demonstration device according to claim 2, characterized in that: The external thread (22) is threadedly connected to a threaded sleeve (23), and the outer ring wall of the threaded sleeve (23) is fixedly assembled with the lower end of the limiting rod (17).

4. The computer-aided teaching demonstration device according to claim 3, characterized in that: A motor (24) is provided at the end of the shaft (21) away from the bearing seat (2). The outer wall of the motor (24) is fixedly assembled with the lower end of the table (13) through a bracket. The motor (24) has a rotating shaft for driving inside. The end of the rotating shaft is fixedly connected to the end of the shaft (21) through a coupling.

5. A computer-aided teaching demonstration device according to any one of claims 1 to 4, characterized in that: The upper end of the limiting rod (17) is fixed with a connecting plate (3), and a bearing (31) is installed on the upper end of the connecting plate (3). The inner ring wall of the bearing (31) is fitted with a spindle (32), and the upper end of the spindle (32) is fixedly assembled with the lower end of the support frame (18).

6. The computer-aided teaching demonstration device according to claim 5, characterized in that: A positioning plate (33) is fixed on one side of the upper end of the connecting plate (3). A positioning sleeve (34) is provided through the surface of the positioning plate (33). A positioning pin (35) is slidably sleeved inside the positioning sleeve (34).

7. The computer-aided teaching demonstration device according to claim 6, characterized in that: A spring (36) is wound around the surface of the positioning pin (35), and the two ends of the spring (36) are fixedly assembled with the end of the positioning pin (35) and the end face of the positioning sleeve (34), respectively.

8. The computer-aided teaching demonstration device according to claim 7, characterized in that: The surface of the mandrel (32) is fixedly distributed with several positioning seats (37), and the end of the positioning pin (35) away from the spring (36) is inserted and docked with the inside of the positioning seat (37).

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