Display device for linguistic course of English major

Abstract

The invention discloses a display device for linguistics courses in English major, and particularly relates to the technical field of teaching devices.The display device comprises a base, four universal wheels are fixedly connected to the lower end of the base in a rectangular distribution mode, a supporting structure is arranged at the upper end of the base, and a power line is fixedly connected to the right side of the upper end of the base; the upper end of the supporting structure is fixedly connected with a display structure, and a lithium battery is installed in an inner cavity of the base. According to the display device for the linguistics course of the English major, the equipment is stabilized at a preset position through cooperation of an electric telescopic rod and a supporting plate, the pitching angle of the display structure can be adjusted through an angle adjusting assembly according to different use scenes, the application range of the equipment is widened, and the practicability of the display device is improved. And meanwhile, the blackboard writing display and the multimedia display can be switched through the effect of the display structure, so that the teaching display personnel can use the display conveniently, the display flexibility is improved, and the teaching efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of teaching devices, and in particular to a display device for English major linguistics courses. Background Art

[0002] English teaching is a vital link in today's rapidly developing globalization. It involves a variety of professional theoretical knowledge, including linguistics, lexicology, syntax, corpus theory, etc. In the teaching of English major linguistics courses, display devices are important tools to assist teaching. Usually, English words and translations are displayed on display boards, and teachers interpret them orally to achieve the purpose of teaching.

[0003] The display device plays a multifaceted role in the teaching process. It can help students understand and remember the teaching content more intuitively and improve learning efficiency. Teachers can organize the teaching content more flexibly, adjust the teaching rhythm, and make the teaching more vivid and interesting. The display device can also serve as a platform for teaching interaction to promote communication and feedback between teachers and students.

[0004] Although existing display devices have played a certain role in teaching, they have some obvious defects. First, due to the limited functions of the display board, when a large amount of content needs to be displayed, teachers need to wipe and replace the display board frequently, which is not only time-consuming, but also easy to interrupt students' thinking and affect teaching efficiency. Secondly, existing display devices are often fixed at an angle and are not easy to adjust. In addition, existing display devices are usually not compatible with modern teaching tools such as whiteboards and display screens, which limits the diversification of teaching methods. Finally, existing display devices lack automatic cleaning functions, and teachers need to wipe them manually after each use, which increases the workload of teachers. Summary of the invention

[0005] The main purpose of the present invention is to provide a display device for English major linguistics courses, which can effectively solve the problems that the existing display devices are inflexible and inconvenient to adjust and need to frequently erase and replace content, wasting time.

[0006] To achieve the above object, the technical solution adopted by the present invention is: A display device for English major linguistics courses comprises a base, wherein the lower end of the base is fixedly connected with four universal wheels in a rectangular arrangement, the upper end of the base is provided with a support structure, the right side of the upper end of the base is fixedly connected with a power cord, the upper end of the support structure is fixedly connected with a display structure, and a lithium battery is installed in the inner cavity of the base.

[0007] Preferably, the support structure includes a support rod slidably connected to the inner surface of the base, an angle adjustment component rotatably connected to the display structure is provided on the upper part of the inner cavity of the support rod, the lower end of the support rod is fixedly connected to the base plate, the lower end of the base plate is fixedly connected to a number of anti-slip particles, the left and right ends of the support rod are symmetrically provided with mounting grooves 1, the inner surfaces of the two mounting grooves 1 are slidably connected to support plates fixedly connected to the adjacent inner surface of the base, the upper ends of the two support plates are fixedly connected to electric telescopic rods, and the piston rods at the output ends of the two electric telescopic rods pass through the upper ends of the support plates and are fixedly connected to the upper ends of the base plates.

[0008] Preferably, the angle adjustment assembly includes an adjustment button fixedly connected to the front end of the support rod, an installation groove 2 is provided on the upper inner surface of the support rod, a regulating component is provided on the inner surface of the installation groove 2, the upper end of the support rod is rotatably connected to the display structure through a hinge seat, and a damping shaft is rotatably connected to the inner surface of the display structure.

[0009] Preferably, the regulating component includes a two-way threaded rod rotatably connected to the inner surface of the second mounting groove, the lower end of the two-way threaded rod is fixedly connected to a driving motor, the outer surface of the two-way threaded rod is symmetrically threaded with a sliding block, a fixed block is symmetrically arranged front and back between the two sliding blocks, the inner surfaces of the two fixed blocks are fixedly connected to a limiting rod, the limiting rod located at the front is fixedly connected to the lower end of the upper sliding block, the limiting rod located at the rear is fixedly connected to the upper end of the lower sliding block, the outer surfaces of the two limiting rods are slidably connected to the inner surface of the opposite sliding block, the upper ends of the two fixed blocks are fixedly connected to a push rod, the upper ends of the two push rods pass through the top wall of the inner cavity of the second mounting groove, extend to the upper end of the support rod and are tightly attached to the lower end of the display structure.

[0010] Preferably, the display structure includes a mounting frame rotatably connected to the outer surface of the damping shaft, an imaging component is arranged at the upper part of the inner cavity of the mounting frame, a whiteboard is fixedly connected to the middle part of the inner surface of the imaging component, a whiteboard cleaning component is arranged together with the front end of the whiteboard and the inner cavity of the mounting frame, speakers are symmetrically arranged at the front end of the mounting frame, and a control button is arranged at the lower part of the front end of the mounting frame.

[0011] Preferably, the imaging component includes a winding shaft rotatably connected to the upper portion of the inner cavity of the installation frame, a flexible LED screen is wound around the outer surface of the winding shaft, a traction plate is fixedly connected to one end of the flexible LED screen away from the winding shaft, both left and right ends of the traction plate are rotatably connected to limiting rollers, guide grooves are symmetrically provided on the left and right sides of the inner cavity of the installation frame, a storage groove is provided on the bottom wall of the inner cavity of the installation frame, and a cleaning component is provided on the upper portion of the inner cavity of the installation frame, which is in close contact with the outer surface of the flexible LED screen.

[0012] Preferably, the imaging component also includes a second driving motor fixedly connected to the upper part of the inner cavity of the installation frame, the output end of the second driving motor is connected to a driving shaft rotatably connected to the upper part of the inner cavity of the installation frame through a coupling, the outer surface of the driving shaft is symmetrically wound with cables, any of the cable paths is rectangular and its rear path passes through the winding shaft and is wound around the outer surface of the winding shaft, and any of the cable front paths passes through a limiting roller and is rotatably connected to the inner surface of the limiting roller through a ring.

[0013] Preferably, the cleaning component includes a second fixed block, a roller hole connected to the right end is symmetrically opened on the upper left end of the second fixed block, a brush roller is rotatably connected to the inner surface of the roller hole, the middle part of the brush roller is arc-shaped and the inner surface is rotatably connected to a sticky roller, the outer surface of the sticky roller is coated with a rubber layer, and a scraper is provided on the inner surface of the brush roller that fits the outer surface of the sticky roller, the right end of the second fixed block extends through the inner cavity of the mounting frame to the left end of the mounting frame, and the left end of the second fixed block is fixedly connected to a pull ring.

[0014] Preferably, the whiteboard cleaning assembly includes two slide grooves symmetrically opened on the left and right sides of the inner cavity of the installation frame, the front parts of the inner surfaces of the two slide grooves are rotatably connected with racks, the part of the inner surface of the installation frame located between the two slide grooves is slidably connected with a slider tightly attached to the front end of the control button, the inner surface of the slider is rotatably connected with a cleaning brush attached to the front end of the control button, the left and right ends of the cleaning brush both penetrate the inner surface of the slider, extend to the inner surface of the two slide grooves on the same side, and are fixedly connected with a gear meshing with the rack on the same side.

[0015] Preferably, a slide groove 1 is provided at one end of the slide groove 2 on either side away from the slider, a drive motor 3 is slidably connected to the inner surface of the slide groove 1, and an output end of the drive motor 3 is transmission-connected to the gear on the same side.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention utilizes the cooperation of the electric telescopic rod and the support plate to stabilize the device at a predetermined position, and can adjust the pitch angle of the display structure through the angle adjustment component according to different usage scenarios, thereby improving the application range of the device. At the same time, through the function of the display structure, it can switch between blackboard display and multimedia display, which is convenient for teaching and display personnel to use, improves the flexibility of the display, and thus improves the teaching efficiency. The present invention drives a driving motor 1 to operate through the action of an adjustment button, and thereby utilizes the action of a pair of bidirectional threaded rods of the driving motor to drive a sliding block to slide in an installation groove 2, and drives a fixed block 1 to produce a height difference by adjusting the spacing change of the sliding block, thereby pushing the front and rear sides of the lower end of the display structure through the push rod, and driving the display structure to rotate along the damping axis through the height difference of the push rod, thereby adjusting the pitch angle of the display structure to adapt to the use of classrooms with different seat arrangements. The present invention utilizes the action of a driving shaft and a cable to pull a traction plate to move. The traction action of the imaging component on the flexible LED screen can drive the flexible LED screen to unfold in front of the whiteboard, thereby meeting the needs of multimedia display. Synchronously, the reverse rotation of the driving shaft is utilized in conjunction with the action of the cable and the winding shaft to retract the flexible LED screen to the surface of the winding shaft, thereby exposing the whiteboard to the outside to meet the needs of blackboard writing. The present invention utilizes a driving motor three to drive the gear to rotate, thereby utilizing the action of the gear and the rack to drive the slider to slide in the slide groove two, and synchronously, under the action of the gear, the cleaning brush will rotate during the vertical movement, thereby wiping and cleaning the surface of the whiteboard, thereby achieving the effect of automatically cleaning the whiteboard, reducing the efficiency of manual cleaning, and improving teaching efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the support structure of the present invention; Figure 3 It is a bottom view structural schematic diagram of the base plate of the present invention; Figure 4 It is a structural schematic diagram of the angle adjustment assembly of the present invention; Figure 5 It is a structural schematic diagram of the control component of the present invention; Figure 6 It is a structural schematic diagram of the display structure of the present invention; Figure 7 is a schematic structural diagram of an imaging component of the present invention; Figure 8 is a schematic diagram of the path of the cable of the present invention; Fig. 9 It is a schematic structural diagram of the cleaning component of the present invention; Fig.10 It is a schematic structural diagram of the whiteboard cleaning assembly of the present invention.

[0018] In the figure: 1. base; 2. universal wheel; 3. power cord; 4. support structure; 41. support rod; 42. mounting slot 1; 43. support plate; 44. bottom plate; 45. anti-skid particles; 46. angle adjustment component; 461. adjustment button; 462. control component; 4621. sliding block; 4622. two-way threaded rod; 4623. driving motor 1; 4624. fixing block 1; 4625. limiting rod; 4626. ejector rod; 463. damping shaft; 464. mounting slot 2; 47. electric telescopic rod; 5. display structure; 51. mounting frame; 52. speaker; 53. whiteboard; 531. whiteboard cleaning component ; 5311, slider; 5312, cleaning brush; 5313, drive motor three; 5314, slide slot one; 5315, slide slot two; 5316, rack; 5317, gear; 54, imaging component; 540, flexible LED screen; 541, cleaning component; 5411, fixing block two; 5412, pull ring; 5413, brush roller; 5414, adhesive roller; 5415, roller hole; 542, drive shaft; 543, drive motor two; 544, limit roller; 545, winding shaft; 546, cable; 547, traction plate; 548, guide groove; 549, storage groove; 55, control button. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] Embodiment 1, as Figure 1 As shown, a display device for English major linguistics courses includes a base 1, four universal wheels 2 are fixedly connected to the lower end of the base 1 in a rectangular distribution, a support structure 4 is arranged on the upper end of the base 1, a power cord 3 is fixedly connected to the right side of the upper end of the base 1, a display structure 5 is fixedly connected to the upper end of the support structure 4, and a lithium battery is installed in the inner cavity of the base 1.

[0021] It should be noted that the power cord 3 is a conventional power connection component, which is connected to the lithium battery inside the base 1 through a voltage stabilizer board. The lithium battery can be charged by connecting to the mains, which is convenient for use in classrooms without power. The technology of storing electricity through lithium batteries has been widely used in the prior art. In the present invention, it is only used to realize the functions of connecting and supplying electricity, and its internal structure, operating principle, wiring, and control method will not be described in detail.

[0022] Specifically, to ensure that the device remains stable during use, refer to Figure 2 and Figure 3The supporting structure 4 includes a supporting rod 41 which is slidably connected to the inner surface of the base 1, an angle adjustment component 46 which is rotatably connected to the display structure 5 is arranged on the upper part of the inner cavity of the supporting rod 41, a bottom plate 44 is fixedly connected to the lower end of the supporting rod 41, a plurality of anti-slip particles 45 are fixedly connected to the lower end of the bottom plate 44, a mounting groove 42 is symmetrically provided at the left and right ends of the supporting rod 41, the inner surfaces of the two mounting grooves 42 are both slidably connected to supporting plates 43 which are fixedly connected to the adjacent inner surfaces of the base 1, the upper ends of the two supporting plates 43 are both fixedly connected to electric telescopic rods 47, and the piston rods at the output ends of the two electric telescopic rods 47 penetrate the upper ends of the supporting plates 43 and are fixedly connected to the upper ends of the bottom plates 44.

[0023] After power is turned on, the piston rod of the electric telescopic rod 47 extends. Since the support plate 43 is fixed to the inner wall of the base 1, the electric telescopic rod 47 will push the bottom plate 44 to descend during this process until the lower part of the bottom plate 44 contacts the ground with the anti-slip particles 45. The anti-slip particles 45 have friction, which can reduce the shaking of the equipment. At the same time, it can also cause the universal wheel 2 to separate from the ground, avoiding displacement of the equipment due to accidental contact during use.

[0024] The angle adjustment assembly 46 on the upper side of the support rod 41 can assist in adjusting the pitch angle of the display structure 5. The display structure 5 can be adjusted to different angles for different scenes in a stepped classroom or a horizontal classroom to facilitate viewing by students at the rear.

[0025] During the operation of this embodiment, the equipment is first stabilized in a predetermined position by the cooperation of the electric telescopic rod 47 and the support plate 43, and the pitch angle of the display structure 5 can be adjusted by the angle adjustment component 46 according to different usage scenarios, thereby improving the applicability of the equipment. At the same time, through the function of the display structure 5, switching between blackboard display and multimedia display can be performed, which is convenient for teaching and display personnel to use, improves the flexibility of the display, and thus improves teaching efficiency.

[0026] Embodiment 2. Based on Embodiment 1, this embodiment drives the driving motor 1 4623 to operate through the action of the adjusting button 461, and thereby utilizes the action of the driving motor 1 4623 on the bidirectional threaded rod 4622 to drive the sliding block 4621 to slide in the mounting groove 2 464, and drives the fixed block 1 4624 to produce a height difference by adjusting the spacing change of the sliding block 4621, thereby pushing the front and rear sides of the lower end of the display structure 5 through the top rod 4626, and driving the display structure 5 to rotate along the damping axis 463 through the height difference of the top rod 4626, thereby adjusting the pitch angle of the display structure 5 to adapt to the use of classrooms with different seat arrangements.

[0027] Specifically, to adjust the pitch angle of the display structure 5, refer to Figure 4The angle adjustment assembly 46 includes an adjustment button 461 fixedly connected to the front end of the support rod 41, a mounting groove 464 is provided on the upper inner surface of the support rod 41, and a regulating component 462 is provided on the inner surface of the mounting groove 464. The upper end of the support rod 41 is rotatably connected to the display structure 5 through a hinge seat, and a damping shaft 463 is rotatably connected to the inner surface of the display structure 5.

[0028] The adjustment button 461 is a conventional switch that can achieve basic on-off control. It is connected to the control circuit of the adjustment component 462, thereby achieving control over the movement and reset of the adjustment component 462. The damping shaft 463 has a high damping property and can limit the display structure 5 to remain stable without being subjected to external forces.

[0029] Further, in order to utilize the interaction between the driving motor 4623 and the bidirectional threaded rod 4622 to drive the top rods 4626 on both sides to produce a height difference, so as to adjust the angle of the display structure 5, refer to Figure 5 The regulating component 462 includes a bidirectional threaded rod 4622 rotatably connected to the inner surface of the second mounting groove 464, the lower end of the bidirectional threaded rod 4622 is fixedly connected to a driving motor 1 4623, the outer surface of the bidirectional threaded rod 4622 is symmetrically threaded with a sliding block 4621, and a fixed block 1 4624 is symmetrically arranged between the two sliding blocks 4621. The inner surfaces of the two fixed blocks 1 4624 are fixedly connected to a limiting rod 4625, the limiting rod 4625 located at the front is fixedly connected to the lower end of the upper sliding block 4621, the limiting rod 4625 located at the rear is fixedly connected to the upper end of the lower sliding block 4621, the outer surfaces of the two limiting rods 4625 are slidably connected to the inner surface of the opposite sliding block 4621, the upper ends of the two fixed blocks 1 4624 are fixedly connected to a push rod 4626, the upper ends of the two push rods 4626 both penetrate the top wall of the inner cavity of the second mounting groove 464, extend to the upper end of the support rod 41 and are tightly attached to the lower end of the display structure 5.

[0030] The driving motor 1 4623 drives the bidirectional threaded rod 4622 to rotate, thereby driving the sliding block 4621 to slide in the installation groove 2 464 through the action of the thread. When the sliding block 4621 slides in the installation groove 2 464, its movement pattern is to move closer to or away from each other, thereby driving the fixed block 1 4624 to move toward the opposite sliding block 4621 through the limiting rod 4625. At this time, the heights of the front and rear push rods 4626 will be different, thereby pushing the display structure 5 to rotate along the damping axis 463 to adjust the angle of the display structure 5.

[0031] The limiting rod 4625 is fixed to the sliding block 4621 on one side, but it slides with the sliding block 4621 on the opposite side, so it can drive the fixed block 4624 to move relative to form a height difference, and simultaneously limit the sliding block 4621 to avoid shaking due to the action of the thread.

[0032] Embodiment 3: Based on embodiment 2, this embodiment further utilizes the action of the driving shaft 542 and the cable 546 to pull the traction plate 547 to move. The traction action of the imaging component 54 on the flexible LED screen 540 can drive the flexible LED screen 540 to unfold in front of the whiteboard 53, thereby meeting the needs of multimedia display. Simultaneously, the reverse rotation of the driving shaft 542 in conjunction with the action of the cable 546 and the winding shaft 545 can retract the flexible LED screen 540 to the surface of the winding shaft 545, thereby exposing the whiteboard 53 to the outside to meet the needs of blackboard writing.

[0033] Specifically, to meet the needs of blackboard writing and multimedia presentation, refer to Figure 6 The display structure 5 includes a mounting frame 51 rotatably connected to the outer surface of the damping shaft 463, an image component 54 is arranged at the upper part of the inner cavity of the mounting frame 51, a whiteboard 53 is fixedly connected to the middle part of the inner surface of the image component 54, a whiteboard cleaning component 531 is arranged together with the inner cavity of the mounting frame 51 at the front end of the whiteboard 53, speakers 52 are symmetrically arranged at the front end of the mounting frame 51, and a control button 55 is arranged at the lower part of the front end of the mounting frame 51.

[0034] The control button 55 is the same as the adjustment button 461, both of which are conventional on-off control parts and belong to conventional technical means. A control module for receiving video signals, controlling the image component 54 to display pictures, and controlling the audio 52 to make sounds is also installed in the installation frame 51. Its specific structure and operating principle are all conventional technical means, and its internal details are not displayed and explained in the present invention.

[0035] Further, in order to release the screen when multimedia presentation is required, refer to Figure 7 and Figure 8 The imaging component 54 includes a winding shaft 545 rotatably connected to the upper part of the inner cavity of the installation frame 51, and a flexible LED screen 540 is wound around the outer surface of the winding shaft 545. A traction plate 547 is fixedly connected to the end of the flexible LED screen 540 away from the winding shaft 545. Both ends of the traction plate 547 are rotatably connected to limit rollers 544. Guide grooves 548 are symmetrically provided on the left and right sides of the inner cavity of the installation frame 51, and a storage groove 549 is provided on the bottom wall of the inner cavity of the installation frame 51. A cleaning component 541 that is in close contact with the outer surface of the flexible LED screen 540 is provided on the upper part of the inner cavity of the installation frame 51.

[0036] The flexible LED screen 540 is wound around the winding shaft 545, and is installed on the upper end of the traction plate 547 after passing through the tensioning wheel and the cleaning component 541. The traction plate 547 slides in the guide groove 548, and the outer surfaces of the rollers on both sides are pulled by the cable 546. When the traction plate 547 slides in the guide groove 548, it can drive the flexible LED screen 540 to move synchronously.

[0037] It should be noted that the above-mentioned flexible LED screen 540 is a kind of flexible display material, which has mature application methods in the prior art. It can display pictures and the material is soft and can be folded and rolled up. This structure has been widely used in the prior art. In the present invention, it is only used to realize the function of displaying multimedia materials, and its internal structure, operating principle, wiring, and control method are no longer described in detail.

[0038] Further, to achieve the driving screen movement, refer to Figure 7 and Figure 8 The imaging component 54 also includes a second driving motor 543 fixedly connected to the upper part of the inner cavity of the installation frame 51. The output end of the second driving motor 543 is connected to a driving shaft 542 rotatably connected to the upper part of the inner cavity of the installation frame 51 through a coupling. The outer surface of the driving shaft 542 is symmetrically wound with cables 546. The path of any cable 546 is rectangular, and its rear path passes through the winding shaft 545 and is wound around the outer surface of the winding shaft 545. The front path of any cable 546 passes through the limiting roller 544 and is rotatably connected to the inner surface of the limiting roller 544 through a ring.

[0039] The driving motor 543 drives the driving shaft 542 to rotate through the bevel gear set. The cable 546 wrapped around the surface of the driving shaft 542 will move during the rotation of the driving shaft 542, and will pull the limiting roller 544 to move during this process. Since the cable 546 is entangled with the winding shaft 545, when the cable 546 is displaced, the winding shaft 545 will rotate synchronously, releasing the flexible LED screen 540 outward or rolling it inward, thereby realizing the release and retraction of the flexible LED screen 540.

[0040] Further, to keep the screen surface clean, refer to Fig. 9 The cleaning component 541 includes a second fixed block 5411, and a roller hole 5415 connected to the right end is symmetrically opened at the upper left end of the second fixed block 5411. A brush roller 5413 is rotatably connected to the inner surface of the roller hole 5415. The middle part of the brush roller 5413 is arc-shaped and its inner surface is rotatably connected to a sticky roller 5414. The outer surface of the sticky roller 5414 is coated with a rubber layer, and a scraper that fits the outer surface of the sticky roller 5414 is provided on the inner surface of the brush roller 5413. The right end of the second fixed block 5411 extends through the inner cavity of the installation frame 51 to the left end of the installation frame 51, and a pull ring 5412 is fixedly connected to the left end of the second fixed block 5411.

[0041] The fixed block 2 5411 can be pulled out through the pull ring 5412, and the sticky roller 5414 in the brush roller 5413 can be replaced. The glue on the surface of the sticky roller 5414 can absorb the dust on the surface of the flexible LED screen 540 and be scraped off by the scraper in the brush roller 5413, thereby ensuring the cleanliness of the surface of the flexible LED screen 540 and avoiding scratches when winding.

[0042] Embodiment 4. Based on embodiment 3, this embodiment utilizes driving motor 3 5313 to drive gear 5317 to rotate, thereby utilizing the action of gear 5317 and rack 5316 to drive slider 5311 to slide in slide groove 2 5315. Synchronously, under the action of gear 5317, cleaning brush 5312 will rotate during vertical movement, thereby erasing and cleaning the surface of whiteboard 53, thereby achieving the effect of automatically cleaning whiteboard 53, reducing the efficiency of manual cleaning, and improving teaching efficiency.

[0043] Specifically, to clean the whiteboard 53, refer to Fig.10 The whiteboard cleaning component 531 includes two slide grooves 5315 symmetrically opened on the left and right sides of the inner cavity of the installation frame 51, and the front parts of the inner surfaces of the two slide grooves 5315 are rotatably connected with racks 5316. The inner surface of the installation frame 51 between the two slide grooves 5315 is slidably connected with a slider 5311 that is tightly attached to the front end of the control button 55. The inner surface of the slider 5311 is rotatably connected with a cleaning brush 5312 that is attached to the front end of the control button 55. The left and right ends of the cleaning brush 5312 penetrate the inner surface of the slider 5311 and extend to the inner surface of the slide groove 5315 on the same side and are fixedly connected with a gear 5317 that meshes with the rack 5316 on the same side.

[0044] Further, to realize the action of the driving slider 5311, refer to Fig.10 A slide groove 1 5314 is provided at one end of the slide groove 2 5315 on either side away from the slider 5311 , and a drive motor 3 5313 is slidably connected to the inner surface of the slide groove 1 5314 , and an output end of the drive motor 3 5313 is transmission-connected to the gear 5317 on the same side.

[0045] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A display device for English major linguistics courses, comprising a base (1), wherein the lower end of the base (1) is rectangularly distributed and fixedly connected with four universal wheels (2), characterized in that: A support structure (4) is provided at the upper end of the base (1); a power cord (3) is fixedly connected to the right side of the upper end of the base (1); a display structure (5) is fixedly connected to the upper end of the support structure (4); and a lithium battery is installed in the inner cavity of the base (1).

2. The display device for English major linguistics courses according to claim 1, characterized in that: The support structure (4) comprises a support rod (41) slidably connected to the inner surface of the base (1); an angle adjustment assembly (46) rotatably connected to the display structure (5) is arranged at the upper part of the inner cavity of the support rod (41); a bottom plate (44) is fixedly connected to the lower end of the support rod (41); a plurality of anti-slip particles (45) are fixedly connected to the lower end of the bottom plate (44); a mounting groove (42) is symmetrically provided at the left and right ends of the support rod (41); the inner surfaces of the two mounting grooves (42) are both slidably connected to support plates (43) fixedly connected to the adjacent inner surface of the base (1); the upper ends of the two support plates (43) are both fixedly connected to electric telescopic rods (47); and piston rods at the output ends of the two electric telescopic rods (47) penetrate the upper ends of the support plates (43) and are fixedly connected to the upper ends of the bottom plates (44).

3. The display device for English major linguistics courses according to claim 2, characterized in that: The angle adjustment assembly (46) comprises an adjustment button (461) fixedly connected to the front end of the support rod (41); a second mounting groove (464) is provided on the upper portion of the inner surface of the support rod (41); a regulating component (462) is provided on the inner surface of the second mounting groove (464); the upper end of the support rod (41) is rotatably connected to the display structure (5) via a hinge seat; and a damping shaft (463) is rotatably connected to the inner surface of the display structure (5).

4. The display device for English major linguistics courses according to claim 3, characterized in that: The regulating component (462) comprises a bidirectional threaded rod (4622) rotatably connected to the inner surface of the second mounting groove (464); the lower end of the bidirectional threaded rod (4622) is fixedly connected to a driving motor (4623); the outer surface of the bidirectional threaded rod (4622) is symmetrically threaded with a sliding block (4621) in an upper and lower manner; a fixed block (4624) is symmetrically arranged between the two sliding blocks (4621); the inner surfaces of the two fixed blocks (4624) are fixedly connected to a limiting rod (4625); the limiting rod (4625) located at the front The rod (4625) is fixedly connected to the lower end of the upper sliding block (4621), the limiting rod (4625) located at the rear is fixedly connected to the upper end of the lower sliding block (4621), the outer surfaces of the two limiting rods (4625) are slidably connected to the inner surface of the opposite sliding block (4621), the upper ends of the two fixed blocks (4624) are fixedly connected with a push rod (4626), the upper ends of the two push rods (4626) pass through the top wall of the inner cavity of the second installation groove (464) to extend to the upper end of the support rod (41) and are tightly attached to the lower end of the display structure (5).

5. The display device for English major linguistics courses according to claim 4, characterized in that: The display structure (5) comprises a mounting frame (51) rotatably connected to the outer surface of the damping shaft (463); an imaging component (54) is arranged at the upper part of the inner cavity of the mounting frame (51); a whiteboard (53) is fixedly connected to the middle part of the inner surface of the imaging component (54); a whiteboard cleaning component (531) is arranged at the front end of the whiteboard (53) and the inner cavity of the mounting frame (51); a speaker (52) is symmetrically arranged at the front end of the mounting frame (51); and a control button (55) is arranged at the lower part of the front end of the mounting frame (51).

6. The display device for English major linguistics courses according to claim 5, characterized in that: The imaging component (54) comprises a winding shaft (545) rotatably connected to the upper part of the inner cavity of the installation frame (51); a flexible LED screen (540) is wound around the outer surface of the winding shaft (545); a traction plate (547) is fixedly connected to one end of the flexible LED screen (540) away from the winding shaft (545); both left and right ends of the traction plate (547) are rotatably connected to limit rollers (544); guide grooves (548) are symmetrically provided on the left and right sides of the inner cavity of the installation frame (51); a storage groove (549) is provided on the bottom wall of the inner cavity of the installation frame (51); and a cleaning component (541) is provided at the upper part of the inner cavity of the installation frame (51) and is in close contact with the outer surface of the flexible LED screen (540).

7. The display device for English major linguistics courses according to claim 6, characterized in that: The imaging component (54) further comprises a second drive motor (543) fixedly connected to the upper inner cavity of the mounting frame (51); the output end of the second drive motor (543) is connected to a drive shaft (542) rotatably connected to the upper inner cavity of the mounting frame (51) via a coupling transmission; the outer surface of the drive shaft (542) is symmetrically wound with a cable (546); the path of any of the cables (546) is rectangular, and its rear path passes through the winding shaft (545) and is wound around the outer surface of the winding shaft (545); the front path of any of the cables (546) passes through a limiting roller (544) and is rotatably connected to the inner surface of the limiting roller (544) via a collar.

8. The display device for English major linguistics courses according to claim 7, characterized in that: The cleaning component (541) comprises a second fixed block (5411), the upper left end of the second fixed block (5411) is symmetrically provided with a roller hole (5415) connected to the right end, the inner surface of the roller hole (5415) is rotatably connected to a brush roller (5413), the middle portion of the brush roller (5413) is arc-shaped, and the inner surface thereof is rotatably connected to a sticky roller (5414), the outer surface of the sticky roller (5414) is coated with a rubber layer, and the inner surface of the brush roller (5413) is provided with a scraper that is in contact with the outer surface of the sticky roller (5414), the right end of the second fixed block (5411) passes through the inner cavity of the mounting frame (51) and extends to the left end of the mounting frame (51), and the left end of the second fixed block (5411) is fixedly connected to a pull ring (5412).

9. The display device for English major linguistics courses according to claim 5, characterized in that: The whiteboard cleaning component (531) comprises two slide grooves (5315) symmetrically arranged on the left and right sides of the inner cavity of the mounting frame (51); the front parts of the inner surfaces of the two slide grooves (5315) are both rotatably connected to racks (5316); the inner surface of the mounting frame (51) between the two slide grooves (5315) is slidably connected to a slider (5311) closely attached to the front end of the control button (55); the inner surface of the slider (5311) is rotatably connected to a cleaning brush (5312) attached to the front end of the control button (55); the left and right ends of the cleaning brush (5312) penetrate the inner surface of the slider (5311) and extend to the inner surface of the slide groove (5315) on the same side and are fixedly connected to a gear (5317) meshing with the rack (5316) on the same side.

10. The display device for English major linguistics courses according to claim 9, characterized in that: A slide groove 1 (5314) is provided at one end of the slide groove 2 (5315) on either side away from the slider (5311), and a drive motor 3 (5313) is slidably connected to the inner surface of the slide groove 1 (5314), and an output end of the drive motor 3 (5313) is transmission-connected to a gear (5317) on the same side.

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