A computer multimedia distance education device

Abstract

The application discloses a computer multimedia remote education device, and relates to the technical field of education demonstration teaching aids. The device comprises a control body, a mounting rack is fixed on the control body, a universal support is connected to the mounting rack, a camera is installed on the universal support, a supporting bottom plate is fixedly installed at the bottom of the control body, supporting rods are respectively installed at the four corners of the lower end of the supporting bottom plate, pulleys are installed on the supporting rods, sliding blocks are movably installed on the mounting rack, connecting supports are symmetrically installed on the two sides of the sliding blocks, a multimedia screen is rotatably installed on the connecting supports, a supporting plate is slidably installed on the mounting rack, and a folding and cleaning mechanism is arranged on the mounting rack. Through linkage cooperation of the folding and cleaning mechanism and the stable supporting mechanism, angle adjustment of the multimedia screen, automatic protection and cleaning, and stable parking of the device are simultaneously realized, and the application range of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of educational demonstration and teaching aids technology, specifically a computer multimedia distance education device. Background Technology

[0002] In this era of advanced information technology, multimedia classrooms have become indispensable teaching tools. A multimedia classroom consists of various modern teaching equipment, including multimedia computers, LCD projectors, multimedia teaching workstations, central control systems, projection screens, and audio equipment. In the field of educational research, display devices, as important teaching aids, play an irreplaceable role in improving teaching effectiveness and enhancing students' learning interest.

[0003] However, existing devices have several pain points in practical use: On the one hand, multimedia screens are exposed to the elements for long periods, making them prone to accumulating dust, fingerprints, and other stains. Manual cleaning is not only cumbersome but also easily scratches the screen coating due to improper wiping. Furthermore, the lack of a specific protective structure makes the screen susceptible to damage from impacts when moved or idle. On the other hand, devices are usually equipped with casters for easy movement, but the stability of the casters is insufficient. During teaching, the device is prone to shifting due to accidental touches, affecting the teaching presentation effect. At the same time, the angle adjustment of the camera and multimedia screen in traditional devices relies heavily on manual operation, which lacks flexibility and is difficult to adapt to the shooting and display needs of different teaching scenarios. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a computer multimedia distance education device, comprising a control body, a mounting frame fixed on the control body, a universal bracket connected to the mounting frame, a camera mounted on the universal bracket, a support base plate fixedly mounted at the bottom of the control body, support rods mounted at the four corners of the lower end of the support base plate, pulleys mounted on the support rods, a sliding block movably mounted on the mounting frame, connecting brackets symmetrically mounted on both sides of the sliding block, a multimedia screen rotatably mounted on the connecting brackets, and a support plate slidably mounted on the mounting frame;

[0005] A folding cleaning mechanism is mounted on a mounting frame and is used to protect and clean the multimedia screen.

[0006] A stabilizing support mechanism is provided inside the support base plate and is used to stabilize the device body.

[0007] Preferably, the folding cleaning mechanism includes an electric push rod, which is fixedly installed at the top of the inner part of the mounting frame. The protruding section of the electric push rod is connected to the top of the sliding block, and a rotating gear is rotatably installed on the upper part of the sliding block.

[0008] Preferably, a rack is movably mounted inside the mounting bracket, the rotating gear meshes with the rack, rotating rods are fixedly mounted on both sides of the rotating gear, the other end of the rotating rod is inserted into the interior of the connecting bracket, a friction block is fixedly mounted on the rotating rod, and a transmission assembly is installed inside both sides of the connecting bracket, the transmission assembly including a transmission belt and a rotating shaft.

[0009] Preferably, a friction wheel is fixedly installed on the shaft of the transmission component, one end of the shaft of the transmission component abuts against a friction block through the friction wheel, and the transmission component is connected to the multimedia screen through a rod.

[0010] Preferably, the folding cleaning mechanism further includes a movable block, which is slidably installed inside the mounting frame. An abutment rod is rotatably installed on the movable block, and a rotating gear is fixedly installed on the abutment rod. Multiple sets of toothed blocks are evenly distributed on the inner wall of the mounting frame, and the rotating gear meshes with the toothed blocks.

[0011] Preferably, the movable block is connected to the support plate via an abutment rod, a rotating cam is fixedly installed on the abutment rod, and sliding rods are abutted at both ends of the rotating cam. The sliding rods are elastically limited and installed in the support plate.

[0012] Preferably, a cleaning scraper is fixedly connected to the sliding rod, the cleaning scraper is symmetrically arranged inside the support plate, and an electromagnet is fixedly installed inside the support plate.

[0013] Preferably, the mounting bracket is fixedly installed with a snap-fit ​​seat inside, the snap-fit ​​seat is located at the uppermost end of the movement trajectory of the moving block, the snap-fit ​​block is elastically limited and installed inside the moving block, and the left and right ends of the moving block are elastically limited and slidably installed with abutment blocks, and the groove opened on the side wall of the snap-fit ​​seat is located on the movement trajectory of the abutment block.

[0014] Preferably, the stabilizing support mechanism includes an oil tank, which is fixedly installed on a support base plate. An extrusion plate is elastically slidably installed inside the support base plate. The extrusion plate is fixedly connected to a piston rod on the oil tank. A connecting rod is fixedly installed at the upper end of the extrusion plate, and the extrusion plate is located at the lower end of the oil tank.

[0015] Preferably, the upper end of the connecting rod is installed through the bottom of the mounting frame, the upper end of the connecting rod is located on the movement trajectory of the moving block, the oil tank is connected to the support rod through the infusion hose, and the support rod is elastically slidably mounted with a support suction cup inside by a piston.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The folding cleaning mechanism, through the linkage of an electric push rod with rotating gears, racks and pinions and transmission components, can drive the multimedia screen to fold and retract quickly, avoiding bumps and damage when idle or moved. At the same time, as the moving block drives the abutment rod to move, the rotating cam, in conjunction with the sliding rod, drives the cleaning scraper to reciprocate, simultaneously cleaning the dust and stains on the screen surface. No manual operation is required, which not only improves cleaning efficiency but also avoids damage to the screen caused by manual wiping, ensuring the display clarity and lifespan of the multimedia screen.

[0018] The stabilizing support mechanism triggers the connecting rod and the extrusion plate to squeeze the oil tank via a moving block, causing the oil to drive the support suction cup inside the support rod to extend downwards and adhere to the ground. This achieves automatic switching between pulley support and suction cup stabilization. When moving, it relies on pulleys for convenient transport, while during teaching use, the suction cup enhances the device's grip, effectively preventing device displacement caused by accidental touches and ensuring the stability of remote education demonstrations. This structure allows the device's stabilizing action and folding / unfolding action to be achieved simultaneously without additional operation, effectively solving the problem of poor stability after movement of existing devices, avoiding the impact of device shaking on teaching, and improving the stability of teaching.

[0019] This device integrates multimedia screen angle adjustment, folding protection, automatic cleaning, and device stabilization functions into the folding cleaning mechanism and stabilizing support mechanism. It uses an electric push rod as the main power source and a mechanical transmission structure to achieve linkage control of various functions. This eliminates the need for multiple independent drive components, simplifying the device structure and reducing energy consumption. At the same time, the synchronous linkage of various functions makes operation convenient and eliminates the need for cumbersome manual intervention, thus improving the ease of use and integration of the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the folded three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic cross-sectional view of the upper end of the mounting bracket of the present invention;

[0022] Figure 3 This is a schematic diagram of the open three-dimensional structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the connecting bracket of the present invention;

[0024] Figure 5 This is a schematic cross-sectional view of the lower end of the mounting bracket of the present invention;

[0025] Figure 6 This is a schematic diagram of the internal structure of the support plate of the present invention;

[0026] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0027] Figure 8 This is a schematic diagram of the internal structure of the supporting base plate of the present invention;

[0028] Figure 9 This is a schematic diagram of the oil tank and extrusion plate structure of the present invention;

[0029] Figure 10 This is a schematic diagram of the internal structure of the moving block of the present invention;

[0030] Figure 11 This is a schematic diagram of the internal structure of the pulley of the present invention;

[0031] Figure 12 This is a partially enlarged structural diagram of the mounting bracket of the present invention.

[0032] In the diagram: 1. Control unit; 2. Mounting bracket; 3. Universal bracket; 4. Camera; 5. Support base plate; 6. Support rod; 7. Pulley; 8. Sliding block; 9. Connecting bracket; 10. Multimedia screen; 11. Support plate; 12. Electric push rod; 13. Rotating gear; 14. Rack; 15. Rotating rod; 16. Friction block; 17. Transmission assembly; 18. Friction wheel; 19. Moving block; 20. Abutment rod; 21. Rotating gear; 22. Gear block; 23. Rotating cam; 24. Sliding rod; 25. Cleaning scraper; 26. Electromagnet; 27. Snap-fit ​​seat; 28. Snap-fit ​​block; 29. ​​Abutment block; 30. Oil tank; 31. Extrusion plate; 32. Connecting rod; 33. Support suction cup. Detailed Implementation

[0033] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structures, features and effects of the present invention.

[0034] This invention provides a technical solution: a computer multimedia distance education device, including a control body 1, a mounting frame 2 fixed on the control body 1, a universal bracket 3 connected to the mounting frame 2, a camera 4 mounted on the universal bracket 3, a support base plate 5 fixedly mounted at the bottom of the control body 1, support rods 6 mounted at the four corners of the lower end of the support base plate 5, pulleys 7 mounted on the support rods 6, a sliding block 8 movably mounted on the mounting frame 2, connecting brackets 9 symmetrically mounted on both sides of the sliding block 8, a multimedia screen 10 rotatably mounted on the connecting brackets 9, and a support plate 11 slidably mounted on the mounting frame 2;

[0035] The folding cleaning mechanism is mounted on the mounting bracket 2 and is used to protect and clean the multimedia screen 10.

[0036] The stabilizing support mechanism is installed inside the support base plate 5 and is used to stabilize the device body.

[0037] As one embodiment of the present invention, the folding cleaning mechanism includes an electric push rod 12, which is fixedly installed at the top of the inner part of the mounting frame 2. The top section of the electric push rod 12 is connected to the top of the sliding block 8, and a rotating gear 13 is rotatably installed on the upper part of the sliding block 8.

[0038] In one embodiment of the present invention, a rack 14 is movably installed inside the mounting bracket 2, and a rotating gear 13 meshes with the rack 14. Rotating rods 15 are fixedly installed on both sides of the rotating gear 13, and the other end of the rotating rods 15 is inserted into the interior of the connecting bracket 9. Friction blocks 16 are fixedly installed on the rotating rods 15. Transmission components 17 are installed inside both sides of the connecting bracket 9. The transmission components 17 include a transmission belt and a rotating shaft.

[0039] In one embodiment of the present invention, a friction wheel 18 is fixedly installed on the shaft of the transmission assembly 17, one end of the shaft of the transmission assembly 17 abuts against the friction block 16 through the friction wheel 18, and the transmission assembly 17 is connected to the multimedia screen 10 through a rod.

[0040] As one embodiment of the present invention, the folding cleaning mechanism further includes a movable block 19, which is slidably installed inside the mounting frame 2. An abutment rod 20 is rotatably installed on the movable block 19, and a rotating gear 21 is fixedly installed on the abutment rod 20. Multiple sets of toothed blocks 22 are evenly distributed on the inner wall of the mounting frame 2, and the rotating gear 21 meshes with the toothed blocks 22.

[0041] In one embodiment of the present invention, the movable block 19 is connected to the support plate 11 via the abutment rod 20. A rotating cam 23 is fixedly installed on the abutment rod 20, and sliding rods 24 are abutted at both ends of the rotating cam 23. The sliding rods 24 are elastically limited and installed in the support plate 11.

[0042] In one embodiment of the present invention, a cleaning scraper 25 is fixedly connected to the sliding rod 24, the cleaning scraper 25 is symmetrically arranged in the support plate 11, and an electromagnet 26 is fixedly installed inside the support plate 11.

[0043] In one embodiment of the present invention, the mounting bracket 2 is fixedly installed inside the snap-fit ​​seat 27, the snap-fit ​​seat 27 is located at the uppermost end of the movement trajectory of the moving block 19, the snap-fit ​​block 28 is elastically limited and installed inside the moving block 19, and the abutment block 29 is elastically limited and slidably installed at the left and right ends inside the moving block 19, and the groove opened on the side wall of the snap-fit ​​seat 27 is located on the movement trajectory of the abutment block 29.

[0044] When it is necessary to protect the multimedia screen 10, the electric push rod 12 drives the sliding block 8 to slide in the opposite direction, and the meshing transmission direction of the rotating gear 13 and the rack 14 changes accordingly. Through the linkage of the rotating rod 15, the friction block 16 and the transmission component 17, the multimedia screen 10 is driven to fold and retract towards the mounting bracket 2 to complete the screen's anti-collision protection.

[0045] While the sliding block 8 moves, the moving block 19 is synchronously driven to slide along the inside of the mounting bracket 2. During the movement of the moving block 19 and the abutment rod 20, the rotating gear 21 on the abutment rod 20 meshes with the toothed block 22 on the inner wall of the mounting bracket 2, triggering the abutment rod 20 to rotate. The abutment rod 20 drives the rotating cam 23 on it to rotate, and the protruding end of the rotating cam 23 periodically abuts against the sliding rod 24, causing the sliding rod 24 to elastically reciprocate within the support plate 11. The sliding rod 24 drives the cleaning scraper 25 to move synchronously, automatically scraping and cleaning the dust and stains on the surface of the multimedia screen 10.

[0046] In one embodiment of the present invention, the stabilizing support mechanism includes an oil tank 30, which is fixedly installed on a support base plate 5. An extrusion plate 31 is elastically slidably installed inside the support base plate 5. The extrusion plate 31 is fixedly connected to a piston rod on the oil tank 30. A connecting rod 32 is fixedly installed on the upper end of the extrusion plate 31, and the extrusion plate 31 is located at the lower end of the oil tank 30.

[0047] In one embodiment of the present invention, the upper end of the connecting rod 32 is installed through the bottom of the mounting bracket 2, and the upper end of the connecting rod 32 is located on the movement trajectory of the moving block 19. The oil tank 30 is connected to the support rod 6 through the infusion hose, and the support rod 6 is elastically slidably mounted with a support suction cup 33 through a piston inside.

[0048] The extrusion plate 31 extrudes the piston rod of the oil tank 30, causing the oil in the oil tank 30 to be transported to the inside of the support rod 6 through the infusion hose; the oil pushes the piston inside the support rod 6 to move downward, thereby causing the support suction cup 33 to extend and contact the ground. The device is stably fixed by the suction cup adsorption, avoiding displacement caused by accidental contact during use.

[0049] Working principle: When the device is not in operation, the support suction cup 33 is retracted inside the support rod 6. The operator can push the entire device to the designated teaching position through the pulley 7 on the support rod 6 at the lower end of the support base plate 5.

[0050] After the device is started, the electric push rod 12 pulls the sliding block 8 to move the connecting bracket 9 and the multimedia screen 10 upward. The support plate 11 moves upward synchronously with the multimedia screen 10 through the attraction of the electromagnet 26, which in turn moves the moving block 19 upward. The upward displacement of the moving block 19 releases the pressure on the connecting rod 32. The pressing plate 31 moves upward under the action of the spring and squeezes the oil in the oil tank 30 outward through the piston rod. The oil is then transmitted into the interior of the support rod 6 through the infusion hose until the support suction cup 33 is tightly attached to the ground, thus achieving stable fixation of the device. At this time, the pulley 7 is removed from the ground to prevent displacement during the use of the device.

[0051] The rotating gear 13, which is rotatably mounted on the sliding block 8, moves synchronously with the sliding block 8. Since the rotating gear 13 meshes with the rack 14, which is movably mounted inside the mounting bracket 2, the rotating gear 13 rolls along the rack 14 and rotates during the movement. The rotating rods 15, which are fixedly mounted on both sides of the rotating gear 13, rotate synchronously with the rotating gear 13. The other end of the rotating rod 15 passes through into the interior of the connecting bracket 9. The friction block 16 on its surface abuts against the friction wheel 18 on the rotating shaft of the transmission component 17 inside the connecting bracket 9. The friction force drives the rotating shaft of the transmission component 17 to rotate. The transmission component 17 is connected to the multimedia screen 10 through the rod. When the rotating shaft rotates, the multimedia screen 10 rotates around the connecting bracket 9 through the rod, so as to realize the unfolding and angle adjustment of the multimedia screen 10 until it is adjusted to the angle that meets the teaching and display requirements.

[0052] Simultaneously, as the movable block 19 slides upward along the mounting frame 2, the rotating gear 21 on the rotating abutment rod 20 inside it meshes with the toothed blocks 22 evenly distributed on the inner wall of the mounting frame 2, causing the abutment rod 20 to rotate as the movable block 19 moves. At the same time, the rotating cam 23 fixedly mounted on the abutment rod 20 rotates synchronously with the abutment rod 20. The two ends of the rotating cam 23 alternately abut against the sliding rod 24, pushing the sliding rod 24 to slide back and forth in the support plate 11 along the elastic limiting direction. The cleaning scraper 25 fixedly connected to the sliding rod 24 moves back and forth synchronously with the sliding rod 24. Because the cleaning scraper 25 Symmetrically arranged within the support plate 11 and adhering to the surface of the multimedia screen 10, the moving block 19 cleans the dust and stains on the surface of the multimedia screen 10 during its reciprocating movement. When the moving block 19 slides to the top, the electric push rod 12 drives the sliding block 8 to continue rising, releasing the limit on the locking block 28. This causes the locking block 28 to move upward under the action of elasticity, while simultaneously pressing and abutting the symmetrically installed abutting blocks 29 on both sides, causing the abutting blocks 29 to engage with the groove of the locking seat 27. After engaging and fixing with the locking seat 27, the rotating gear 21 disengages from the toothed block 22, the abutting rod 20 stops rotating, and the cleaning scraper 25 stops moving.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A computer multimedia distance education device, comprising a control unit (1), characterized in that: The control body (1) is fixed with a mounting bracket (2), a universal bracket (3) is connected to the mounting bracket (2), a camera (4) is installed on the universal bracket (3), a support base plate (5) is fixedly installed at the bottom of the control body (1), support rods (6) are installed at the four corners of the lower end of the support base plate (5), pulleys (7) are installed on the support rods (6), a sliding block (8) is movably installed on the mounting bracket (2), connecting brackets (9) are symmetrically installed on both sides of the sliding block (8), a multimedia screen (10) is rotatably installed on the connecting brackets (9), and a support plate (11) is slidably installed on the mounting bracket (2). A folding cleaning mechanism is mounted on the mounting frame (2) and is used to protect and clean the multimedia screen (10). A stabilizing support mechanism is provided inside the support base plate (5) and is used to stabilize the device body. The folding cleaning mechanism also includes a movable block (19), which is slidably installed inside the mounting frame (2). An abutment rod (20) is rotatably installed on the movable block (19), and a rotating gear (21) is fixedly installed on the abutment rod (20). Multiple sets of toothed blocks (22) are evenly distributed on the inner wall of the mounting frame (2), and the rotating gear (21) meshes with the toothed blocks (22). The movable block (19) is connected to the support plate (11) via the abutting rod (20). A rotating cam (23) is fixedly installed on the abutting rod (20). Sliding rods (24) are abutted at both ends of the rotating cam (23). The sliding rods (24) are elastically limited and installed in the support plate (11). A cleaning scraper (25) is fixedly connected to the sliding rod (24). The cleaning scraper (25) is symmetrically arranged inside the support plate (11). An electromagnet (26) is fixedly installed inside the support plate (11). The folding cleaning mechanism includes an electric push rod (12), which is fixedly installed at the top of the inside of the mounting bracket (2). The top section of the electric push rod (12) is connected to the top of the sliding block (8), and a rotating gear (13) is rotatably installed on the upper part of the sliding block (8). A rack (14) is movably installed inside the mounting bracket (2). The rotating gear (13) meshes with the rack (14). Rotating rods (15) are fixedly installed on both sides of the rotating gear (13). The other end of the rotating rod (15) is inserted into the interior of the connecting bracket (9). Friction blocks (16) are fixedly installed on the rotating rod (15). Transmission components (17) are installed inside both sides of the connecting bracket (9). The transmission components (17) include a transmission belt and a rotating shaft.

2. The computer multimedia distance education device according to claim 1, characterized in that: A friction wheel (18) is fixedly installed on the shaft of the transmission assembly (17). One end of the shaft of the transmission assembly (17) abuts against the friction block (16) through the friction wheel (18). The transmission assembly (17) is connected to the multimedia screen (10) through a rod.

3. The computer multimedia distance education device according to claim 1, characterized in that: The mounting bracket (2) is fixedly installed with a snap-fit ​​seat (27). The snap-fit ​​seat (27) is located at the uppermost end of the movement trajectory of the moving block (19). The moving block (19) is elastically limited and installed with a snap-fit ​​block (28). The left and right ends of the moving block (19) are elastically limited and slidably installed with abutment blocks (29). The groove opened on the side wall of the snap-fit ​​seat (27) is located on the movement trajectory of the abutment block (29).

4. A computer multimedia distance education device according to claim 3, characterized in that: The stabilizing support mechanism includes an oil tank (30), which is fixedly installed on a support base plate (5). An extrusion plate (31) is elastically slidably installed inside the support base plate (5). The extrusion plate (31) is fixedly connected to a piston rod on the oil tank (30). A connecting rod (32) is fixedly installed on the upper end of the extrusion plate (31). The extrusion plate (31) is located at the lower end of the oil tank (30).

5. A computer multimedia distance education device according to claim 4, characterized in that: The upper end of the connecting rod (32) is inserted into the bottom of the mounting bracket (2). The upper end of the connecting rod (32) is located on the movement trajectory of the moving block (19). The oil tank (30) is connected to the support rod (6) through the infusion hose. The support rod (6) has a support suction cup (33) installed inside through a piston elastic sliding mechanism.

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