Visual remote auxiliary device for computer teaching

Abstract

The invention discloses a visual remote auxiliary device for computer teaching, and belongs to the field of remote auxiliary devices.The visual remote auxiliary device comprises a supporting plate, a middle plate is fixedly connected to the middle position of one side face of the supporting plate, two parallel supporting legs are fixedly connected to one side of the bottom end face of the middle plate, and a top plate is fixedly connected to the upper portion of the middle plate; a bottom plate is arranged below the middle plate, a keyboard and a mouse are arranged on one side of the top end face of the middle plate, and a displayer is arranged on the top end face of the top plate. A lifting driving assembly is arranged above the bottom plate, a host is arranged on the top end face of the bottom plate, a rectangular groove is formed in the top end of the side face of the supporting plate, an adjustable camera shooting mechanism is arranged in the rectangular groove, a side shielding assembly is arranged below the rectangular groove, and two parallel air supply assemblies are embedded in the portion, below the top plate, of the side face of the supporting plate. According to the invention, through the arranged lifting driving assembly, the placement height of the host can be adaptively adjusted according to the model of the host, so that the leg extension space of a user is increased.

Description

Technical Field

[0001] The present invention relates to the field of remote assistance devices, and specifically to a visual remote assistance device for computer teaching. Background Art

[0002] Distance education is an educational form that conducts systematic teaching and communication through various media methods. It is an education that transmits courses to one or more students outside the campus. When conducting distance teaching, cameras, network transmission technologies, hosts, and monitors are often required to achieve distance teaching. Its teaching is convenient and can make reasonable use of teaching time.

[0003] Existing distance education assistance devices usually place the host under the teaching desk, which will cause the host to occupy the leg stretching space of the user. If the host is placed higher, it is likely to be incompatible with other models of hosts. Therefore, how to adaptively adjust the placement height of the host according to its model to increase the leg stretching space of the user has become a difficult problem that needs to be solved urgently at present.

[0004] Therefore, the technical personnel in this field provide a visual remote assistance device for computer teaching to solve the problems raised in the above background art. Summary of the Invention

[0005] Aiming at the defects in the prior art, the present invention provides a visual remote assistance device for computer teaching, including a support plate. A middle plate is fixedly connected to the middle position of one side surface of the support plate, and two parallel legs are fixedly connected to one side of the bottom end surface of the middle plate. A top plate is fixedly connected above the middle plate, and a bottom plate is arranged below the middle plate. A keyboard and a mouse are arranged on one side of the top end surface of the middle plate, and a monitor is arranged on the top end surface of the top plate;

[0006] A lifting drive assembly is arranged above the bottom plate, and a host is arranged on the top end surface of the bottom plate. A rectangular groove is opened at the top end of the side surface of the support plate, and an adjustable camera mechanism is arranged inside the rectangular groove. A side shielding assembly is arranged below the rectangular groove, and two parallel air supply assemblies are embedded on the side surface of the support plate below the top plate.

[0007] As a further solution of the present invention: The lifting drive assembly specifically includes: a drive motor fixed to one side of the bottom end face of the middle plate. The bottom output shaft of the drive motor is fixedly connected to a lead screw, and the bottom end of the lead screw penetrates through the bottom plate and is fixedly connected to a cleaning mechanism. The lead screw is threadedly connected to the bottom plate, and linear bearings are embedded on both sides of the lead screw. A optical axis is movably connected inside the linear bearing, and the top end of the optical axis penetrates through the middle plate and is fixedly connected to the top plate. A universal wheel is provided at the bottom end of the optical axis. Two parallel limit sliders are fixedly connected to one side face of the bottom plate. A limit chute is opened at the position corresponding to the limit sliders on one side face of the support plate, and the limit sliders are movably connected inside the limit chute.

[0008] As a further solution of the present invention: The cleaning mechanism specifically includes: two arc-shaped shoveling plates symmetrically fixed to the bottom end of the lead screw. A lifting groove matching with it is opened on the bottom end face of the arc-shaped shoveling plate, and a lifting plate is movably connected inside the lifting groove. A brush is fixedly connected to the bottom end face of the lifting plate, and a plurality of uniformly distributed vertical rods are fixedly connected to the top end face of the lifting plate. Vertical holes are opened at the positions corresponding to the vertical rods above the lifting groove, and the top ends of the vertical rods penetrate into the vertical holes and are fixedly connected with anti-drop blocks.

[0009] As a further solution of the present invention: The air supply assembly specifically includes: an air supply box embedded on the side face of the support plate. An air cavity is opened inside the air supply box, and an air inlet is opened on one side face of the air supply box. An exhaust fan is embedded inside the air inlet. An air outlet is opened on the other side face of the air supply box, and an air regulating grille is provided inside the air outlet. A heating wire is fixedly connected to one side inside the air cavity, and a filtering and impurity removing mechanism is provided on the other side inside the air cavity.

[0010] As a further solution of the present invention: The filtering and impurity removing mechanism specifically includes: a first baffle fixed to the bottom end face and the top end face of the air cavity. A second baffle is fixedly connected to one side of the first baffle, and a wire mesh frame is movably connected between the first baffle and the second baffle. A filter screen is embedded on the side face of the wire mesh frame, and a plurality of transverse axles are respectively arranged through the top end and the bottom end of the side face of the wire mesh frame. The two ends of the transverse axle are respectively fixedly connected to the corresponding first baffle and second baffle, and a first spring column is sleeved outside the transverse axle. An impurity outlet is opened at the position of the bottom end face of the air cavity close to the second baffle.

[0011] As a further solution of the present invention: The side shielding component specifically includes: two strip-shaped grooves arranged side by side on the side surface of the support plate, guide rail grooves are provided at the bottom end of the strip-shaped groove and the top end surface of the top plate, a first vertical plate is movably connected inside one of the strip-shaped grooves, and one end of the first vertical plate is movably connected with a first horizontal plate, a second vertical plate is movably connected inside the other strip-shaped groove, and one end of the second vertical plate is movably connected with a second horizontal plate. Guide rails are fixedly connected to the bottom ends of the first vertical plate, the second vertical plate, the first horizontal plate and the second horizontal plate, and the guide rails of the first vertical plate and the second vertical plate are respectively movably connected in the corresponding guide rail grooves. A first strong magnet is embedded on the other side surface of the support plate, a second strong magnet is embedded at a position corresponding to the first strong magnet on one side surface of the first horizontal plate, a third strong magnet is embedded at a position corresponding to the second strong magnet on the other side surface of the first horizontal plate, and a fourth strong magnet is embedded at a position corresponding to the third strong magnet on one side surface of the second horizontal plate.

[0012] As a further solution of the present invention: The adjustable camera mechanism specifically includes: an inner rod fixed on one side inside the rectangular groove, a sleeve is movably connected to the outside of the inner rod, and a strip-shaped plate is fixedly connected to the outer side surface of the sleeve. A movable sphere is embedded on one side of the bottom end surface of the strip-shaped plate, and a camera is fixedly connected to the bottom end of the sphere. A cleaning cylinder is embedded on the bottom end surface of the rectangular groove below the camera, and a cleaning cavity is provided inside the cleaning cylinder. A circular seat is movably connected inside the cleaning cavity, and a cleaning cotton is embedded on the top end surface of the circular seat. A second spring column is fixedly connected between the bottom end surface of the circular seat and the bottom end surface of the cleaning cavity.

[0013] As a further solution of the present invention: Lockable rollers are provided on both sides of the bottom end surface of the support plate.

[0014] As a further solution of the present invention: Three vertically arranged wire holes are provided at the middle position of one side surface of the support plate.

[0015] As a further solution of the present invention: An adjustable support foot is movably connected to the bottom end of the support leg, and the height of the adjustable support foot is adjusted by threads.

[0016] The beneficial effects of the present invention are reflected in:

[0017] 1. Through the provided lifting drive component in the present application, the placement height can be adaptively adjusted according to the host model, thereby increasing the user's leg stretching space and improving the use comfort.

[0018] 2. Through the provided cleaning mechanism in the present application, the dust falling under the bottom plate can be cleaned during the process of adjusting the height of the host, and thus it is convenient to remove dust from areas that are not easy to clean.

[0019] 3. The air supply component provided in this application can blow air to the keyboard and mouse when it is hot, thus bringing coolness to the user's hands, and can blow hot air to the keyboard and mouse when it is cold, bringing warmth to the user's hands, further improving the use comfort.

[0020] 4. The filtering and impurity removal mechanism provided in this application can filter out impurities in the air flow during the operation of the air supply component, and perform self-cleaning of the filter net when the air flow stops, ensuring the filtering effect.

[0021] 5. The side shielding component provided in this application can form shields on both sides of the display when needed, which can not only avoid the discomfort caused by the reflection of external light sources on the display, but also prevent adjacent students from peeking during teaching assessments.

[0022] 6. The adjustable camera mechanism provided in this application can not only adjust the shooting angle of the camera according to needs, but also store, hide and clean the camera, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0024] Figure 1 FIG. 1 is a schematic structural diagram of a visual remote assistance device for computer teaching;

[0025] Figure 2 FIG. 2 is a side view of a visual remote assistance device for computer teaching;

[0026] Figure 3 FIG. 3 is an internal view of the air supply box of a visual remote assistance device for computer teaching;

[0027] Figure 4 FIG. 4 is a partial enlarged view of part A of a visual remote assistance device for computer teaching Figure 2 ;

[0028] Figure 5 FIG. 5 is a combined view of the first vertical plate and the second vertical plate of a visual remote assistance device for computer teaching;

[0029] Figure 6 FIG. 6 is a partial enlarged view of part B of a visual remote assistance device for computer teaching Figure 5 ;

[0030] Figure 7It is a combined view of the second vertical plate and the second horizontal plate in a visual remote assistance device for computer teaching;

[0031] Figure 8 It is a combined view of the lead screw and the arc-shaped shovel plate in a visual remote assistance device for computer teaching;

[0032] Figure 9 It is an internal view of the arc-shaped shovel plate in a visual remote assistance device for computer teaching.

[0033] In the figure: 1, support plate; 2, middle plate; 3, leg; 4, adjustable foot; 5, top plate; 6, bottom plate; 7, linear bearing; 8, optical axis; 9, limit chute; 10, limit slider; 11, locking roller; 12, universal wheel; 13, drive motor; 14, lead screw; 15, arc-shaped shovel plate; 16, lifting chute; 17, lifting plate; 18, brush; 19, vertical hole; 20, anti-disengagement block; 21, vertical rod; 22, air supply box; 23, air cavity; 24, air inlet; 25, exhaust fan; 26, air outlet; 27, air regulating grille; 28, first baffle; 29, second baffle; 30, wire frame; 31, filter screen; 32, horizontal shaft rod; 33, first spring column; 34, impurity outlet; 35, rectangular groove; 36, inner rod; 37, sleeve; 38, strip plate; 39, sphere; 40, camera; 41, cleaning cylinder; 42, cleaning cavity; 43, round seat; 44, cleaning cotton; 45, second spring column; 46, strip groove; 47, first vertical plate; 48, second vertical plate; 49, first horizontal plate; 50, second horizontal plate; 51, first strong magnet; 52, second strong magnet; 53, third strong magnet; 54, fourth strong magnet; 55, guide rail; 56, guide rail groove; 57, display; 58, keyboard; 59, mouse; 60, host; 61, wire hole; 62, heating wire. Detailed implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] As mentioned in the background art of this application, through research, it is found that in existing remote education assistance devices, the host 60 is usually placed under the teaching desk, which will cause the host 60 to occupy the leg stretching space of the user. If the host 60 is placed higher, it is likely to be incompatible with other models of the host 60, having certain defects.

[0036] To address the above-mentioned deficiencies, the present application discloses a visual remote assistance device for computer teaching. By means of the provided lifting drive assembly, the placement height of the host 60 can be adaptively adjusted according to its model, thereby increasing the leg stretching space for users.

[0037] The following will introduce in detail how the solution of the present application addresses the above technical problems in conjunction with the accompanying drawings.

[0038] Please refer to Figures 1 to 9 , in an embodiment of the present invention, a visual remote assistance device for computer teaching includes a support plate 1. In the middle position of one side surface of the support plate 1, an intermediate plate 2 is fixedly connected. On one side of the bottom end surface of the intermediate plate 2, two juxtaposed legs 3 are fixedly connected. Above the intermediate plate 2, a top plate 5 is fixedly connected. Below the intermediate plate 2, a bottom plate 6 is provided. On one side of the top end surface of the intermediate plate 2, a keyboard 58 and a mouse 59 are provided. On the top end surface of the top plate 5, a display 57 is provided; above the bottom plate 6, a lifting drive assembly is provided. On the top end surface of the bottom plate 6, a host 60 is provided. A rectangular groove 35 is opened at the top of the side surface of the support plate 1. Inside the rectangular groove 35, an adjustable camera mechanism is provided. Below the rectangular groove 35, a side shielding assembly is provided. On the side surface of the support plate 1 below the top plate 5, two juxtaposed air supply assemblies are embedded. By means of the provided lifting drive assembly, the placement height of the host 60 can be adaptively adjusted according to its model, thereby increasing the leg stretching space for users.

[0039] In this embodiment, the lifting drive assembly specifically includes: a drive motor 13 fixed on one side of the bottom end surface of the intermediate plate 2. The bottom output shaft of the drive motor 13 is fixedly connected to a lead screw 14. The bottom end of the lead screw 14 penetrates through the bottom plate 6 and is fixedly connected to a cleaning mechanism. The lead screw 14 is in threaded connection with the bottom plate 6. On both sides of the lead screw 14, linear bearings 7 are embedded. Inside the linear bearings 7, a smooth shaft 8 is movably connected. The top end of the smooth shaft 8 penetrates through the intermediate plate 2 and is fixedly connected to the top plate 5. At the bottom end of the smooth shaft 8, a universal wheel 12 is provided. On one side surface of the bottom plate 6, two juxtaposed limit sliders 10 are fixedly connected. At the position corresponding to the limit sliders 10 on one side surface of the support plate 1, a limit chute 9 is opened. The limit sliders 10 are movably connected inside the limit chute 9. The lifting drive assembly can adjust the height of the bottom plate 6 as needed, and thus adjust the height of the host 60.

[0040] In this embodiment, the cleaning mechanism specifically includes: two arc-shaped shoveling plates 15 symmetrically fixed to the bottom end of the lead screw 14. A lifting groove 16 matching the arc-shaped shoveling plate 15 is formed on the bottom end surface of the arc-shaped shoveling plate 15. A lifting plate 17 is movably connected inside the lifting groove 16. A brush hair 18 is fixedly connected to the bottom end surface of the lifting plate 17. A plurality of uniformly distributed vertical rods 21 are fixedly connected to the top end surface of the lifting plate 17. Vertical holes 19 are formed above the lifting groove 16 at positions corresponding to the vertical rods 21. The top ends of the vertical rods 21 penetrate into the vertical holes 19 and are fixedly connected with anti-detachment blocks 20. The cleaning mechanism can clean the dust falling below the bottom plate 6 during the process of adjusting the height of the main machine 60, thereby facilitating dust removal in areas that are not easy to clean.

[0041] In this embodiment, the air supply assembly specifically includes: an air supply box 22 embedded on the side surface of the support plate 1. An air cavity 23 is formed inside the air supply box 22. An air inlet 24 is formed on one side surface of the air supply box 22. An exhaust fan 25 is embedded inside the air inlet 24. An air outlet 26 is formed on the other side surface of the air supply box 22. An air regulating grille 27 is provided inside the air outlet 26. A heating wire 62 is fixedly connected to one side inside the air cavity 23. A filter and impurity removal mechanism is provided on the other side inside the air cavity 23. By providing the air supply assembly, it can blow air to the keyboard 58 and the mouse 59 when the weather is hot, thereby bringing coolness to the user's hand, and can blow hot air to the keyboard 58 and the mouse 59 when the weather is cold, bringing warmth to the user's hand, further improving the use comfort.

[0042] In this embodiment, the filter and impurity removal mechanism specifically includes: first baffles 28 fixed to the bottom end surface and the top end surface of the air cavity 23. A second baffle 29 is fixedly connected to one side of the first baffle 28. A mesh frame 30 is movably connected between the first baffle 28 and the second baffle 29. A filter screen 31 is embedded on the side surface of the mesh frame 30. A plurality of transverse shaft rods 32 are respectively arranged through the top end and the bottom end of the side surface of the mesh frame 30. The two ends of the transverse shaft rod 32 are respectively fixedly connected to the corresponding first baffle 28 and second baffle 29. A first spring column 33 is sleeved outside the transverse shaft rod 32. An impurity outlet 34 is formed on the bottom end surface of the air cavity 23 near the second baffle 29. Through the provided filter and impurity removal mechanism in this application, impurities in the air flow can be filtered out during the operation of the air supply assembly, and self-cleaning of the filter screen 31 can be performed when the air flow stops, ensuring the filtering effect.

[0043] In this embodiment, the side shielding component specifically includes: two strip-shaped grooves 46 arranged in parallel on the side surface of the support plate 1. Guide rail grooves 56 are provided on the bottom end of the strip-shaped groove 46 and the top end surface of the top plate 5. A first longitudinal plate 47 is movably connected inside one strip-shaped groove 46, and one end of the first longitudinal plate 47 is movably connected to a first transverse plate 49. A second longitudinal plate 48 is movably connected inside the other strip-shaped groove 46, and one end of the second longitudinal plate 48 is movably connected to a second transverse plate 50. Guide rails 55 are fixedly connected to the bottom ends of the first longitudinal plate 47, the second longitudinal plate 48, the first transverse plate 49, and the second transverse plate 50. The guide rails 55 of the first longitudinal plate 47 and the second longitudinal plate 48 are respectively movably connected in the corresponding guide rail grooves 56. A first strong magnet 51 is embedded on the other side surface of the support plate 1. A second strong magnet 52 is embedded at a position corresponding to the first strong magnet 51 on one side surface of the first transverse plate 49. A third strong magnet 53 is embedded at a position corresponding to the second strong magnet 52 on the other side surface of the first transverse plate 49. A fourth strong magnet 54 is embedded at a position corresponding to the third strong magnet 53 on one side surface of the second transverse plate 50. By providing the side shielding component, it can form shields on both sides of the display 57 when needed, which can not only avoid the discomfort caused by the reflection of external light sources on the display 57, but also prevent adjacent students from peeking during teaching assessments.

[0044] In this embodiment, the adjustable camera mechanism specifically includes: an inner rod 36 fixed on one side inside the rectangular groove 35. A sleeve 37 is movably connected to the outside of the inner rod 36, and a strip-shaped plate 38 is fixedly connected to the outer side surface of the sleeve 37. A movable sphere 39 is embedded on one side of the bottom end surface of the strip-shaped plate 38, and a camera 40 is fixedly connected to the bottom end of the sphere 39. A cleaning cylinder 41 is embedded on the bottom end surface of the rectangular groove 35 below the camera 40, and a cleaning cavity 42 is provided inside the cleaning cylinder 41. A circular seat 43 is movably connected inside the cleaning cavity 42, and a cleaning cotton 44 is embedded on the top end surface of the circular seat 43. A second spring column 45 is fixedly connected between the bottom end surface of the circular seat 43 and the bottom end surface of the cleaning cavity 42. By providing the adjustable camera mechanism, it can not only adjust the shooting angle of the camera 40 according to needs, but also store and hide the camera 40 and clean it, which is convenient for use.

[0045] In this embodiment, locking rollers 11 are provided on both sides of the bottom end surface of the support plate 1. The bottom end of the support leg 3 is movably connected to an adjustable foot 4, and the height of the adjustable foot 4 is adjusted by threading. During use, the staff can move the device to the use location through the locking rollers 11 and the universal wheels 12, and then fix the device by locking the locking rollers 11 and extending the adjustable feet 4.

[0046] In this embodiment, three vertically arranged wire holes 61 are provided in the middle position of one side surface of the support plate 1. The provision of the wire holes 61 facilitates the routing of connecting wires.

[0047] The working principle of the present invention is as follows: When in use, first, move the computer teaching visual remote assistance device to the use location and fix it. Subsequently, adjust the adjustable camera mechanism. Specifically, forcefully rotate the strip plate 38 out of the rectangular groove 35 and adjust it to an appropriate angle. During this process, the sleeve 37 rotates around the inner rod 36. Immediately afterwards, adjust the camera 40 to an appropriate angle through the sphere 39. When not in use, just restore the strip plate 38 and the camera 40 to their initial positions. When the camera 40 returns to the rectangular groove 35, the camera 40 contacts the cleaning cotton 44. The cleaning cotton 44 cleans the camera 40 every time it enters and exits the rectangular groove 35. The second spring column 45 jacks up the round seat 43 and the cleaning cotton 44, so that the cleaning cotton 44 can fully contact the camera 40, and the second spring column 45 provides space for the downward movement of the round seat 43 to prevent the round seat 43 from affecting the movement of the camera 40.

[0048] Then, adjust the height of the host 60 through the lifting drive assembly. Specifically, the drive motor 13 operates to drive the lead screw 14 to rotate, and the bottom plate 6 slowly rises and falls along the lead screw 14, thereby driving the host 60 to follow the lifting. During this process, the limit slider 10 and the limit sliding groove 9 have relative displacement, and the optical axis 8 and the linear bearing 7 have relative displacement to improve stability. In addition, every time the lifting drive assembly adjusts the height, the cleaning mechanism cleans the dust falling below the bottom plate 6. Specifically, the lead screw 14 rotates to drive the arc-shaped shovel plate 15 to rotate. The arc-shaped shovel plate 15 scrapes the impurities from the ground and guides them to the outside. The lifting plate 17 is always in a downward movement trend under its own gravity, so that the bristles 18 always contact the ground. Thus, when the arc-shaped shovel plate 15 rotates, the ground is cleaned by the bristles 18. It should be noted that the vertical rod 21 and the anti-detachment block 20 are provided to prevent the lifting plate 17 from detaching from the lifting groove 16.

[0049] When the user uses the device, both hands will come into contact with the keyboard 58 and the mouse 59. If the weather is hot, sweating on the hands will make the keyboard 58 and the mouse 59 slippery. If the weather is cold, the hands will be frozen and affect the operation. Therefore, through the set air supply component in this application, it can blow air to the keyboard 58 and the mouse 59 when the weather is hot, thereby bringing coolness to the user's hands, and can blow hot air to the keyboard 58 and the mouse 59 when the weather is cold, bringing warmth to the user's hands. Specifically: The exhaust fan 25 at the air inlet 24 operates to extract air from the outside and send it into the air cavity 23. The air flow is blown out from the air outlet 26 after being filtered by the filter and impurity removal mechanism. The user can adjust the air supply direction through the air adjustment grille 27. It should be noted that when the heating wire 62 does not operate, the blown air is cool. When the heating wire 62 operates, the heating wire 62 heats the air flow, making the blown air warm. In addition, the filter and impurity removal mechanism can not only filter out impurities in the air flow during the operation of the air supply component, but also perform self-cleaning of the filter net 31 when the air flow stops. Specifically, when the exhaust fan 25 operates, the air flow rushes into the air cavity 23 and contacts the filter net 31. Although the filter net 31 can also pass through the air flow, it will form a certain obstruction. The air flow will push the filter net 31 towards the first baffle 28. As the attachments on the filter net 31 increase, the filter net 31 further moves towards the first baffle 28, and finally the first spring column 33 is compressed to accumulate elastic potential energy. When the exhaust fan 25 stops operating, the air flow disappears, and the first spring column 33 releases the accumulated elastic potential energy. The net frame 30 is quickly pushed towards the second baffle 29 and collides with it. During the collision, a large amount of impurities attached to the filter net 31 are shaken off and flow out along the impurity outlet 34.

[0050] In addition, the side shielding assembly provided in the present application can form shielding on both sides of the display 57 when necessary, which can not only avoid the discomfort caused by the reflection of external light sources on the display 57, but also prevent adjacent students from peeking during teaching assessment. The specific use process of the side shielding assembly is: flip the second horizontal plate 50 by 90 degrees to align it with the second vertical plate 48, then push the second horizontal plate 50 and the second vertical plate 48 toward the top plate 5, then flip the first horizontal plate 49 by 90 degrees to align it with the first vertical plate 47, and then push the first horizontal plate 49 and the first vertical plate 47 toward the top plate 5. During the process, the guide rail 55 and the guide rail groove 56 are relatively displaced, and the guide rail 55 and the guide rail groove 56 cooperate with each other to prevent the horizontal plate and the vertical plate from tipping over. Finally, the first horizontal plate 49 and the first vertical plate 47 form a shielding on the left side of the display 57, and the second horizontal plate 50 and the second vertical plate 48 form a shielding on the right side of the display 57. When the side shielding assembly is not needed, it can be stored. Specifically, the first horizontal plate 49 and the first vertical plate 47 are pushed toward the left side strip groove 46. After the first horizontal plate 49 completely crosses the left side strip groove 46, the first horizontal plate 49 is flipped ninety degrees so that the second strong magnet 52 and the first strong magnet 51 are magnetically fixed. Subsequently, the second horizontal plate 50 and the second vertical plate 48 are pushed toward the right side strip groove 46. After the second horizontal plate 50 crosses the right side strip groove 46 for a certain distance, the second horizontal plate 50 is flipped ninety degrees so that the fourth strong magnet 54 and the third strong magnet 53 are magnetically fixed.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A visual remote assistance device for computer teaching, characterized in that, It includes a support plate (1). At the middle position on one side of the support plate (1), an intermediate plate (2) is fixedly connected. And on one side of the bottom end surface of the intermediate plate (2), two juxtaposed legs (3) are fixedly connected. Above the intermediate plate (2), a top plate (5) is fixedly connected. And below the intermediate plate (2), a bottom plate (6) is provided. On one side of the top end surface of the intermediate plate (2), a keyboard (58) and a mouse (59) are provided. On the top end surface of the top plate (5), a display (57) is provided. Above the bottom plate (6), a lifting drive assembly is provided. And on the top end surface of the bottom plate (6), a host computer (60) is provided. At the top of the side surface of the support plate (1), a rectangular groove (35) is opened. And inside the rectangular groove (35), an adjustable camera mechanism is provided. Below the rectangular groove (35), a side shielding assembly is provided. On the side surface of the support plate (1) below the top plate (5), two juxtaposed air supply assemblies are embedded.

2. The visual remote assistance device for computer teaching according to claim 1, wherein The lifting drive assembly specifically includes: a drive motor (13) fixed on one side of the bottom end surface of the intermediate plate (2). The bottom output shaft of the drive motor (13) is fixedly connected with a lead screw (14). And the bottom end of the lead screw (14) penetrates through the bottom plate (6) and is fixedly connected with a cleaning mechanism. The lead screw (14) is in threaded connection with the bottom plate (6). And on both sides of the lead screw (14), linear bearings (7) are embedded. Inside the linear bearings (7), an optical axis (8) is movably connected. And the top end of the optical axis (8) penetrates through the intermediate plate (2) and is fixedly connected with the top plate (5). At the bottom end of the optical axis (8), a universal wheel (12) is provided. On one side surface of the bottom plate (6), two juxtaposed limit sliders (10) are fixedly connected. At the position corresponding to the limit sliders (10) on one side surface of the support plate (1), a limit chute (9) is opened. And the limit sliders (10) are movably connected inside the limit chute (9).

3. The visual remote assistance device for computer teaching according to claim 2, characterized in that, The cleaning mechanism specifically includes: two arc-shaped scraping plates (15) symmetrically fixed at the bottom end of the lead screw (14). On the bottom end surface of the arc-shaped scraping plate (15), a lifting groove (16) matching it is opened. And inside the lifting groove (16), a lifting plate (17) is movably connected. On the bottom end surface of the lifting plate (17), bristles (18) are fixedly connected. And on the top end surface of the lifting plate (17), a plurality of uniformly distributed vertical rods (21) are fixedly connected. Above the lifting groove (16), at the position corresponding to the vertical rods (21), vertical holes (19) are opened. And the top ends of the vertical rods (21) penetrate into the vertical holes (19) and are fixedly connected with anti-drop blocks (20).

4. A visual remote assistance device for computer teaching according to claim 1, characterized in that, The air supply assembly specifically includes: an air supply box (22) embedded on the side surface of the support plate (1). Inside the air supply box (22), an air cavity (23) is opened. And on one side surface of the air supply box (22), an air inlet (24) is opened. Inside the air inlet (24), an exhaust fan (25) is embedded. On the other side surface of the air supply box (22), an air outlet (26) is opened. And inside the air outlet (26), an air regulating grille (27) is provided. On one side inside the air cavity (23), a heating wire (62) is fixedly connected. And on the other side inside the air cavity (23), a filtering and impurity removing mechanism is provided.

5. A visual remote assistance device for computer teaching according to claim 4, wherein, The filtering and impurity removing mechanism specifically includes: a first baffle (28) fixed to the bottom end face and the top end face of the air chamber (23), a second baffle (29) fixedly connected to one side of the first baffle (28), a wire frame (30) movably connected between the first baffle (28) and the second baffle (29), a filter screen (31) embedded in the side face of the wire frame (30), and a plurality of transverse shaft rods (32) penetrating through the top end and the bottom end of the side face of the wire frame (30). The two ends of the transverse shaft rod (32) are respectively fixedly connected to the corresponding first baffle (28) and second baffle (29), a first spring column (33) is sleeved outside the transverse shaft rod (32), and an impurity outlet (34) is opened at the bottom end face of the air chamber (23) near the second baffle (29).

6. The visual remote assistance device for computer teaching according to claim 1, wherein, The side shielding assembly specifically includes: two strip-shaped grooves (46) arranged side by side on the side face of the support plate (1), guide rail grooves (56) opened at the bottom end of the strip-shaped groove (46) and the top end face of the top plate (5). A first longitudinal plate (47) is movably connected inside one of the strip-shaped grooves (46), and a first transverse plate (49) is movably connected to one end of the first longitudinal plate (47). A second longitudinal plate (48) is movably connected inside the other strip-shaped groove (46), and a second transverse plate (50) is movably connected to one end of the second longitudinal plate (48). Guide rails (55) are fixedly connected to the bottom ends of the first longitudinal plate (47), the second longitudinal plate (48), the first transverse plate (49) and the second transverse plate (50), and the guide rails (55) of the first longitudinal plate (47) and the second longitudinal plate (48) are respectively movably connected in the corresponding guide rail grooves (56). A first strong magnet (51) is embedded in the other side face of the support plate (1), a second strong magnet (52) is embedded at a position corresponding to the first strong magnet (51) on one side face of the first transverse plate (49), a third strong magnet (53) is embedded at a position corresponding to the second strong magnet (52) on the other side face of the first transverse plate (49), and a fourth strong magnet (54) is embedded at a position corresponding to the third strong magnet (53) on one side face of the second transverse plate (50).

7. A visual remote assistance device for computer teaching according to claim 1, characterized in that, The adjustable camera mechanism specifically includes: an inner rod (36) fixed to one side inside the rectangular groove (35), a sleeve (37) movably connected to the outside of the inner rod (36), a strip-shaped plate (38) fixedly connected to the outer side face of the sleeve (37), a movable sphere (39) embedded in one side of the bottom end face of the strip-shaped plate (38), a camera (40) fixedly connected to the bottom end of the sphere (39), a cleaning cylinder (41) embedded in the bottom end face of the rectangular groove (35) below the camera (40), a cleaning chamber (42) opened inside the cleaning cylinder (41), a round seat (43) movably connected inside the cleaning chamber (42), a cleaning cotton (44) embedded in the top end face of the round seat (43), and a second spring column (45) fixedly connected between the bottom end face of the round seat (43) and the bottom end face of the cleaning chamber (42).

8. A visual remote assistance device for computer teaching according to claim 1, characterized in that, Lockable rollers (11) are provided on both sides of the bottom end face of the support plate (1).

9. The visual remote assistance device for computer teaching according to claim 1, wherein, Three wire holes (61) arranged vertically in parallel are formed in the middle position of one side surface of the support plate (1).

10. A visual remote assistance device for computer teaching according to claim 1, characterized in that, An adjustable support foot (4) is movably connected to the bottom end of the support leg (3), and the height of the adjustable support foot (4) is adjusted by threads.

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