CN114743412B - Teaching robot capable of automatically adjusting volume and screen size - Google Patents
Teaching robot capable of automatically adjusting volume and screen size Download PDFInfo
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- CN114743412B CN114743412B CN202210356116.3A CN202210356116A CN114743412B CN 114743412 B CN114743412 B CN 114743412B CN 202210356116 A CN202210356116 A CN 202210356116A CN 114743412 B CN114743412 B CN 114743412B
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- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses a teaching robot capable of automatically adjusting the size and the screen size, which belongs to the field of intelligent teaching. According to the invention, the effect of adjusting the angle and the display size of the display screen according to the number of students in a classroom is achieved by arranging the unfolding mechanism, the effect that the movement of the device cannot be blocked is achieved by arranging the cleaning mechanism, and the effect that the height of the display screen is automatically lifted when the screen is unfolded is achieved by arranging the lifting mechanism, so that the students in the rear row can observe easily is achieved.
Description
Technical Field
The invention relates to the technical field of intelligent teaching, in particular to a teaching robot capable of automatically adjusting the size of a volume and the size of a screen.
Background
With the development of related technologies such as artificial intelligence technology and computer technology, intelligent robots are increasingly researched, and in the field of education, many institutions have developed relevant courses in robotics in students so as to meet the demands of teaching demonstration and experimental teaching of relevant courses in teaching.
Although the existing teaching robot has a teaching function, the screen size is inconvenient to adjust in actual use, and therefore the teaching robot is not beneficial to use.
Disclosure of Invention
The invention aims to provide a teaching robot capable of automatically adjusting the size of a screen, which has the advantage of self-adaptively adjusting the size of the screen, and solves the problem of inconvenient use of the conventional device.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an automatic adjust teaching robot of volume and screen size, includes the bottom plate and lays at subaerial guide rail, sliding connection has the mount pad on the bottom plate, sliding connection has three display screen on the mount pad, is located two display screens of mount pad both sides all with be located the display screen rotation in mount pad middle part is connected, it is connected with first removal wheel to rotate on the bottom plate, fixedly connected with motor on the bottom plate, the output fixedly connected with drive shaft of motor, fixedly connected with second removes wheel and cam in the drive shaft, second removes wheel roll connection and is in on the guide rail, be equipped with on the cam and be used for making three the display screen expansion is a planar expansion mechanism.
Preferably, the unfolding mechanism comprises a first connecting rod which is rotationally connected to the bottom plate, a fixed arm is fixedly connected to the bottom plate, a locking shaft is fixedly connected to the first connecting rod, the locking shaft penetrates through the fixed arm and is rotationally connected with the fixed arm fixed shaft, a sliding column is fixedly connected to the first connecting rod, a sliding groove for sliding the sliding column is formed in a cam, a mounting shaft is fixedly connected to the cam, a rack is rotationally connected to the mounting shaft, one end, away from the sliding column, of the first connecting rod is rotationally connected with a rotating rod, a second connecting rod is fixedly connected to the rotating rod, a sliding rod is fixedly connected to the second connecting rod, and a through groove matched with the sliding rod is formed in the rack.
Preferably, the unfolding mechanism further comprises a connecting mounting plate which is symmetrically and slidably connected to the mounting seat, rectangular blocks are slidably connected to the two mounting plates, two threaded rods with opposite directions are fixedly connected to the rectangular blocks respectively, lantern rings are fixedly connected to the two threaded rods, rectangular frames are fixedly connected between the lantern rings, toothed rings are fixedly connected to the rectangular frames, the inner diameter of each toothed ring is larger than that of each threaded rod, the racks are intermittently meshed with the toothed rings, and two limiting plates which are attached to the toothed rings are symmetrically and fixedly connected to the two sides of the toothed rings on the bottom plate.
Preferably, the unfolding mechanism is provided with a cleaning mechanism for cleaning the guide rail, the cleaning mechanism comprises two vertical plates which are symmetrically and fixedly connected with the bottom plate, the two vertical plates are fixedly connected with first telescopic rods, the two first telescopic rods are fixedly connected with cross bars together, the racks are intermittently abutted against the cross bars, the first telescopic rods are sleeved with first tension springs, and two ends of the first tension springs are fixedly connected with the vertical plates and the cross bars respectively.
Preferably, the cleaning mechanism further comprises a connecting block fixedly connected to the bottom plate, two second telescopic rods are fixedly connected to the connecting block, two L-shaped frames are fixedly connected to one ends of the second telescopic rods, which are far away from the connecting block, of the second telescopic rods, second tension springs are sleeved on the second telescopic rods, two ends of the second tension springs are fixedly connected to the connecting block and the L-shaped frames respectively, a rotating column is connected to the L-shaped frames in a rotating mode, a pull rope is fixedly connected to the rotating column, one ends of the pull rope, which are far away from the rotating column, of the pull rope are fixedly connected to the cross rod, and the cam is intermittently offset with the L-shaped frames.
Preferably, the cleaning mechanism further comprises a brush head fixedly connected to the bottom of the rotating column, a torsion spring is sleeved on the rotating column, and two ends of the torsion spring are fixedly connected to the L-shaped frame and the brush head.
Preferably, the unfolding mechanism is provided with a lifting mechanism for lifting the display screen, the lifting mechanism comprises a first piston cylinder fixedly connected to the vertical plate, a first piston rod is connected to the first piston cylinder in a sliding mode, the mounting plate is intermittently abutted to the first piston rod, a spring is arranged in the first piston cylinder, and two ends of the spring are fixedly connected to the first piston cylinder and the first piston rod respectively.
Preferably, the lifting mechanism further comprises a second piston cylinder fixedly connected in the bottom plate, a second piston rod is connected to the second piston cylinder in a sliding mode, the top of the second piston rod is fixedly connected to the lower surface of the mounting seat, an air pipe is fixedly connected to the second piston cylinder, and one end, away from the second piston cylinder, of the air pipe is fixedly connected to the first piston cylinder.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the effect of adjusting the angle and the display size of the display screen according to the number of students in a classroom is achieved by arranging the unfolding mechanism, the effect that the movement of the device cannot be blocked is achieved by arranging the cleaning mechanism, and the effect that the height of the display screen is automatically lifted when the screen is unfolded is achieved by arranging the lifting mechanism, so that the students in the rear row can observe easily is achieved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic view of the structure of the cam of the present invention;
FIG. 4 is a schematic view of the structure of the driving shaft of the present invention;
fig. 5 is a schematic view of the structure of the second piston cylinder of the present invention.
In the figure: 1. a bottom plate; 11. a mounting base; 12. a first moving wheel; 13. a vertical plate; 14. a guide rail; 15. a limiting plate; 2. a display screen; 21. a mounting plate; 3. a motor; 31. a drive shaft; 32. a second moving wheel; 33. a cam; 331. a chute; 34. a rack; 341. a mounting shaft; 35. a first link; 355. a fixed arm 355; 356. a locking shaft; 351. a spool; 36. a second link; 361. a rotating rod; 362. a slide bar; 37. a rectangular frame; 371. a toothed ring; 372. a collar; 38. a threaded rod; 381. rectangular blocks; 4. a cross bar; 41. a first telescopic rod; 42. a first tension spring; 43. a pull rope; 44. a rotating column; 45. a brush head; 46. a torsion spring; 47. an L-shaped frame; 48. a connecting block; 481. a second telescopic rod; 482. a second tension spring; 5. a first piston cylinder; 51. a first piston rod; 52. a spring; 53. an air pipe; 54. a second piston cylinder; 55. and a second piston rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The invention provides a technical scheme that: the utility model provides an automatic adjust teaching robot of volume and screen size, including bottom plate 1 and lay subaerial guide rail 14, sliding connection has mount pad 11 on the bottom plate 1, sliding connection has three display screen 2 on the mount pad 11, two display screen 2 that are located the mount pad 11 both sides all rotate with the display screen 2 that is located the mount pad 11 middle part and be connected, rotate on the bottom plate 1 and be connected with first removal wheel 12, fixedly connected with motor 3 on the bottom plate 1, the output fixedly connected with drive shaft 31 of motor 3, fixedly connected with second removes wheel 32 and cam 33 on the drive shaft 31, second removes wheel 32 roll connection on guide rail 14, be equipped with on the cam 33 and be used for making three display screen 2 expand and be planar expansion mechanism.
Referring to fig. 1, the second moving wheel 32 is made to roll on the guide rail 14 by starting the motor 3, so that the whole device moves, the position of the display screen 2 on the base plate 1 away from the students in class is adjusted according to the number of people in the big classroom when the multimedia teaching is performed, when the display screen 2 is positioned closest to the students in class, the display screens 2 positioned on both sides of the mounting seat 11 are folded by a certain angle relative to the display screen 2 positioned in the middle of the mounting seat 11, so that the students on both sides of the front row can observe information on the display screen 2, and in this state, the three display screens 2 synchronously display the same picture, and the device is made to perform teaching in this state according to the situation that the students in the big classroom and the rear row of classrooms are less.
The unfolding mechanism comprises a first connecting rod 35 which is rotationally connected to the bottom plate 1, a sliding column 351 is fixedly connected to the first connecting rod 35, a sliding groove 331 for the sliding column 351 to slide is formed in a cam 33, a mounting shaft 341 is fixedly connected to the cam 33, a rack 34 is rotationally connected to the mounting shaft 341 in a fixed shaft mode, a rotating rod 361 is rotationally connected to one end, far away from the sliding column 351, of the first connecting rod 35, a second connecting rod 36 is fixedly connected to the rotating rod 361, a sliding rod 362 is fixedly connected to the second connecting rod 36, and a through groove matched with the sliding rod 362 is formed in the rack 34.
Referring to fig. 1-4, if the number of people in the teaching room is large during the teaching in a large class, the rear row is fully seated on the students in the class, at this time, the motor 3 is started to rotate the driving shaft 31 on the motor 3, and then the second moving wheel 32 fixedly connected with the driving shaft 31 rotates and rolls on the guide rail 14, so that the rolling second moving wheel 32 drives the bottom plate 1 to move away from the students in the class, in the process of moving the bottom plate 1 by the rotation of the second moving wheel 32, the cam 33 fixedly connected with the driving shaft 31 rotates synchronously with the driving shaft 31, when the cam 33 rotates, the sliding column 351 on the first connecting rod 35 can slide in the sliding groove 331 on the cam 33, and because the fixed shaft of the first connecting rod 35 rotates on the bottom plate 1, the fixed arm 355 is fixedly connected with the locking shaft 356 on the first connecting rod 35, and then when the sliding column 351 on the first connecting rod 35 slides in the sliding groove 331 on the cam 33, the sliding rod 35 can push the first connecting rod 35 to rotate intermittently at a certain angle, and then the sliding rack 34 can slide the first connecting rod 35 in the sliding groove 33 by the sliding groove 33, and the sliding rod 35 can slide the sliding groove 34 in a certain angle, and the sliding groove 34 can be further intermittently meshed with the first connecting rod 35 by the sliding groove 34.
The unfolding mechanism further comprises two mounting plates 21 which are symmetrically and slidingly connected to the mounting seat 11, rectangular blocks 381 are slidably connected to the two mounting plates 21, two threaded rods 38 with opposite threads are fixedly connected to the two rectangular blocks 381 respectively, lantern rings 372 are fixedly connected to the two threaded rods 38, rectangular frames 37 are fixedly connected to the two lantern rings 372, toothed rings 371 are fixedly connected to the rectangular frames 37, the inner diameter of each toothed ring 371 is larger than the diameter of each threaded rod 38, racks 34 are intermittently meshed with the toothed rings 371, and two limiting plates 15 attached to the toothed rings 371 are symmetrically and fixedly connected to the two sides of the toothed rings 371 on the bottom plate 1.
Referring to fig. 1 to 4, the rack 34 sliding when the rack 34 is engaged with the rack 371 can drive the rack 371 to rotate, and then the rack 371 can drive the collar 372 fixedly connected through the rectangular frame 37 to rotate, and due to the arrangement of the limiting plate 15, the rack 371 cannot shift left and right relative to the rack 34, so that not only is the stability of engagement of the rack 371 with the rack 34 ensured, but also the two threaded rods 38 with opposite screw threads of the collar 372 can synchronously approach or depart from each other when rotating, namely, the display screen 2 is far away from the students when the motor 3 drives the second moving wheel 32 to rotate clockwise in the state of fig. 2, the cam 33 also rotates clockwise, the first link 35 pushes the second link 36 to push the rack 34 to engage with the rack 371 when the cam 33 rotates clockwise in the state of fig. 3, at this time, the mounting shaft 341 is located at a position after six o' clock on the cam 33, and then the rotation of the cam 33 pushes the rack 34, so that the rack 34 moves upwards, so that the rack 34 drives the toothed ring 371 to rotate, at this time, the toothed ring 371 which rotates drives the collar 372 to rotate, because the mounting plate 21 horizontally and linearly slides on the mounting seat 11, the rectangular block 381 on the threaded rod 38 vertically slides on the mounting plate 21, and then the collar 372 which rotates at this time makes the two symmetrically arranged threaded rods 38 far away from each other, and further the two mounting plates 21 far away from each other, at this time, the two mutually far away mounting plates 21 pull the display screens 2 on both sides of the mounting seat 11 to swing towards a position tending to be horizontal with the display screen 2 in the middle of the mounting seat 11, and when the second moving wheel 32 rolls to the farthest stroke of the guide rail 14, the three display screens 2 form the same plane, at this time, the three display screens 2 jointly display a picture, and at this time, the display screens 2 are far away from the students on the two sides of the front row, and then the students on the two sides of the front row can watch the information on the display screens 2, otherwise, when the second moving wheel 32 rotates to enable the display screens 2 to approach the students on the class, the display screens 2 are refolded into the original state.
Example two
On the basis of the first embodiment, further, the cleaning mechanism for cleaning the guide rail 14 is arranged on the unfolding mechanism, the cleaning mechanism comprises two vertical plates 13 which are symmetrically and fixedly connected to the bottom plate 1, the two vertical plates 13 are fixedly connected with first extension rods 41, two ends of each second extension rod 482 are fixedly connected to the connecting block 48 and the L-shaped frame 47 respectively, the rack 34 is intermittently abutted against the cross rod 4, the first extension rods 41 are sleeved with first tension springs 42, two ends of each first tension spring 42 are fixedly connected to the vertical plates 13 and the cross rod 4 respectively, the cleaning mechanism further comprises a connecting block 48 which is fixedly connected to the bottom plate 1, two second extension rods 481 are fixedly connected to the connecting block 48, one ends, far away from the connecting block 48, of each second extension rod 481 are fixedly connected with an L-shaped frame 47, two ends of each second extension rod 482 are sleeved with second tension springs 44 respectively and fixedly connected to the connecting block 48 and the L-shaped frame 47, one ends, far away from the rotating posts 44 are rotatably connected to the rotating posts 44 on the L-shaped frame 47, one ends, far from the rotating posts 44 are fixedly connected to the rotating posts 4 on the rotating posts 44, the rotating posts 45 are fixedly connected to the rotating posts 45, and the rotating posts 45 are fixedly connected to the rotating posts 45.
Referring to fig. 2 and 3, since the rack 34 is intermittently engaged with the toothed ring 371 by the driving of the second link 36, and thus the rack 34 can press the rail 4 to move the rail 4 away from the riser 13 against the tension of the first tension spring 42 when the rack 34 is not engaged with the toothed ring 371, since the rail 4 is connected with the rotation post 44 through the tension cord 43, when the rail 4 is far from the riser 13, the tension cord 43 is reduced by the tension cord 4, and the tension cord 43 is received on the rotation post 44 under the action of the torsion spring 46, and the rotation post 44 rotates, and the brush head 45 fixedly connected to the bottom of the rotation post 44 rotates, further cleaning is performed on the guide rail 14, and when the rack 34 no longer applies a pushing force to the rail 4, the rail 4 returns to the original position under the action of the first tension spring 42, and at this time, the rail 4 again pulls the rotation post 44 through the tension cord 43 to rotate the brush head 45 to clean the guide rail 14, the cam 33 can intermittently contact the L-shaped frame 47 and intermittently squeeze the L-shaped frame 47 while rotating along the second moving wheel 32, so that the L-shaped frame 47 overcomes the pulling force of the second tension spring 482 to drive the brush head 45 to move, the brush head 45 is not contacted with the second moving wheel 32, the condition that bristles on the brush head 45 are damaged by the second moving wheel 32 due to continuous contact of the brush head 45 with the second moving wheel 32 is avoided, when the cam 33 pushes the L-shaped frame 47, the sliding column 351 is in a large radius section sliding on the sliding groove 331 of the cam 33, at the moment, the rack 34 is in an engaged state with the toothed ring 371, the rack 34 is not pushed on the cross bar 4, the cross bar 4 is further applied with a pulling force on the pulling rope 43, and when the cam 33 pushes the L-shaped frame 47 to move away from the bottom plate 1, the pulling rope 43 is only stretched tightly, thereby preventing the pull cord 43 from falling off the rotation post 44.
Example III
On the basis of the second embodiment, further, the lifting mechanism for lifting the display screen 2 is arranged on the unfolding mechanism, the lifting mechanism comprises a first piston cylinder 5 fixedly connected to the vertical plate 13, a first piston rod 51 is connected to the first piston cylinder 5 in a sliding manner, the mounting plate 21 is intermittently abutted to the first piston rod 51, a spring 52 is arranged in the first piston cylinder 5, two ends of the spring 52 are fixedly connected to the first piston cylinder 5 and the first piston rod 51 respectively, the lifting mechanism further comprises a second piston cylinder 54 fixedly connected to the bottom plate 1, a second piston rod 55 is connected to the second piston cylinder 54 in a sliding manner, the top of the second piston rod 55 is fixedly connected to the lower surface of the mounting seat 11, an air pipe 53 is fixedly connected to the second piston cylinder 54, and one end, far away from the second piston cylinder 54, of the air pipe 53 is fixedly connected to the first piston cylinder 5.
Referring to fig. 1, 2 and 5, when two mounting plates 21 are far away from each other so that three display screens 2 are running towards the state of tending to the same plane, the two mutually far away mounting plates 21 squeeze the corresponding first piston rod 51, so that the first piston rod 51 slides into the first piston cylinder 5, air in the first piston cylinder 5 enters into the second piston cylinder 54 through the air pipe 53, the second piston rod 55 in the second piston cylinder 54 stretches out, the mounting seat 11 fixedly connected with the second piston rod 55 is lifted, and then the height of the display screens 2 arranged on the mounting seat 11 is increased, so that the students in the rear row can more easily see information on the display screens 2.
Working principle: this automatic volume and screen size's teaching robot makes the second remove wheel 32 roll on guide rail 14 through starter motor 3 during the use for the device wholly removes, adjusts the position of display screen 2 apart from the class classmate on bottom plate 1 according to the number of people in the big teaching room when carrying out the multimedia teaching, is in the display screen 2 and is located the display screen 2 folding certain angle of relative being located the display screen 2 at the middle part of mount pad 11 when being closest to class classmate, makes the classmate that is in front row both sides can observe the information on the display screen 2, and three display screen 2 synchronous display is the same picture under this state, makes the device be in this state and gives lessons to the less condition of class back row classmate in big classroom.
If the number of people in the teaching room is large during the teaching in a large class, the rear row is fully occupied by the students in the class, at the moment, the motor 3 is started to enable the driving shaft 31 on the motor 3 to rotate, then the second moving wheel 32 fixedly connected with the driving shaft 31 rotates and rolls on the guide rail 14, the rolling second moving wheel 32 drives the bottom plate 1 to move away from the students in the class, in the process of the rotation of the second moving wheel 32, the bottom plate 1 moves, the cam 33 fixedly connected with the driving shaft 31 synchronously rotates with the driving shaft 31, when the cam 33 rotates, the sliding column 351 on the first connecting rod 35 can slide in the sliding groove 331 on the cam 33, and as the first connecting rod 35 rotates on the bottom plate 1 in a fixed shaft, the sliding column 351 on the first connecting rod 35 can make the first connecting rod 35 reciprocate and swing in the sliding groove 331 on the cam 33, the swinging first connecting rod 35 can push the second connecting rod 36 through the rotating rod, the rotating rod 361 has a certain rotation angle on the first connecting rod 35, and the sliding rod 361 can push the second connecting rod 34 to rotate intermittently slide in the sliding groove 34 through the sliding groove 33, and the sliding groove 34 is further meshed with the sliding rack 34 in the sliding groove 34;
the rack 34 sliding when the rack 34 is meshed with the rack 371 can drive the rack 371 to rotate, the rack 371 can drive the collar 372 fixedly connected through the rectangular frame 37 to rotate, and due to the arrangement of the limiting plate 15, the rack 371 cannot deviate left and right relative to the rack 34, so that the meshing stability of the rack 371 and the rack 34 is ensured, simultaneously, two threaded rods 38 with opposite screw threads of the collar 372 can synchronously approach or separate from each other when rotating, namely, the motor 3 drives the second moving wheel 32 to rotate clockwise in the state of fig. 2, the display screen 2 is far away from the students, the cam 33 also rotates clockwise, the first connecting rod 35 pushes the second connecting rod 36 to push the rack 34 to mesh with the rack 371 by pushing the second connecting rod 36 when the cam 33 rotates clockwise to enable the slide post 351 to slide to a large radius section of the slide groove 331 on the cam 33, at this time, the mounting shaft 341 is located at a position after six o' clock on the cam 33, and then the rotation of the cam 33 pushes the rack 34, so that the rack 34 moves upwards, so that the rack 34 drives the toothed ring 371 to rotate, at this time, the toothed ring 371 rotates the collar 372, because the mounting plate 21 horizontally and linearly slides on the mounting seat 11, the rectangular block 381 on the threaded rod 38 vertically slides on the mounting plate 21, and then the collar 372 rotates so that the two symmetrically arranged threaded rods 38 are far away from each other, and the two mounting plates 21 are far away from each other, at this time, the two mutually far away mounting plates 21 pull the display screens 2 on two sides of the mounting seat 11 to swing towards a position tending to be horizontal with the display screen 2 in the middle of the mounting seat 11, when the second moving wheel 32 rolls to the farthest stroke of the guide rail 14, the three display screens 2 form the same plane, at this time, the three display screens 2 jointly display a picture, at this time, the display screen 2 is far away from the students on the two sides of the front row, so that the students on the two sides of the front row can watch the information on the display screen 2, otherwise, when the second moving wheel 32 rotates to enable the display screen 2 to approach the students on the lessons, the display screen 2 is refolded into the original state;
because the rack 34 is intermittently meshed with the toothed ring 371 under the drive of the second connecting rod 36, and then when the rack 34 is not meshed with the toothed ring 371, the rack 34 can squeeze the cross rod 4 to enable the cross rod 4 to move away from the vertical plate 13 against the pulling force of the first tension spring 42, because the cross rod 4 is connected with the rotating column 44 through the pulling rope 43, and then when the cross rod 4 is far away from the vertical plate 13, the pulling rope 43 is subjected to the pulling force of the cross rod 4 to be reduced, the pulling rope 43 is contained on the rotating column 44 under the action of the torsion spring 46, the rotating column 44 rotates, the brush head 45 fixedly connected to the bottom of the rotating column 44 rotates, the guide rail 14 is further cleaned, and when the rack 34 does not apply pushing force to the cross rod 4, the cross rod 4 returns to the original position under the action of the first tension spring 42, and at the moment, the rotating column 44 drives the brush head 45 to rotate again through the pulling of the pulling rope 43 to clean the guide rail 14, the cam 33 can intermittently contact the L-shaped frame 47 and intermittently squeeze the L-shaped frame 47 while rotating along the second moving wheel 32, so that the L-shaped frame 47 overcomes the pulling force of the second tension spring 482 to drive the brush head 45 to move, the brush head 45 is not contacted with the second moving wheel 32, the condition that bristles on the brush head 45 are damaged by the second moving wheel 32 due to continuous contact of the brush head 45 with the second moving wheel 32 is avoided, when the cam 33 pushes the L-shaped frame 47, the sliding column 351 is in a large radius section sliding on the sliding groove 331 of the cam 33, at the moment, the rack 34 is in an engaged state with the toothed ring 371, the rack 34 is not pushed on the cross bar 4, the cross bar 4 is further applied with a pulling force on the pulling rope 43, and when the cam 33 pushes the L-shaped frame 47 to move away from the bottom plate 1, the pulling rope 43 is only stretched tightly, thereby preventing the pull cord 43 from falling off the rotation post 44.
When the two mounting plates 21 are far away from each other, so that the three display screens 2 run towards the state of tending to the same plane, the two mutually-far-away mounting plates 21 squeeze the corresponding first piston rod 51, so that the first piston rod 51 slides into the first piston cylinder 5, air in the first piston cylinder 5 enters into the second piston cylinder 54 through the air pipe 53, the second piston rod 55 in the second piston cylinder 54 stretches out, the mounting seat 11 fixedly connected with the second piston rod 55 is lifted, the height of the display screen 2 arranged on the mounting seat 11 is increased, and a colleague in the rear row can more easily see information on the display screens 2.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an automatic adjust teaching robot of volume and screen size, includes bottom plate (1) and lays guide rail (14) on subaerial, its characterized in that: the base plate (1) is connected with an installation seat (11) in a sliding manner, and the installation seat (11) is connected with three display screens (2) in a sliding manner;
two display screens (2) positioned on two sides of the mounting seat (11) are both rotationally connected with the display screen (2) positioned in the middle of the mounting seat (11), a first moving wheel (12) is rotationally connected on the bottom plate (1), and a motor (3) is fixedly connected on the bottom plate (1);
the output end of the motor (3) is fixedly connected with a driving shaft (31), a second moving wheel (32) and a cam (33) are fixedly connected to the driving shaft (31), the second moving wheel (32) is connected to the guide rail (14) in a rolling way, and the cam (33) is provided with a unfolding mechanism for unfolding three display screens (2) to form a plane;
the unfolding mechanism comprises a first connecting rod (35) which is rotationally connected to the bottom plate (1), a fixed arm (355) is fixedly connected to the bottom plate (1), a locking shaft (356) is fixedly connected to the first connecting rod (35), the locking shaft (356) penetrates through the fixed arm (355) and is rotationally connected with the fixed arm (355) in a fixed shaft mode, a sliding column (351) is fixedly connected to the first connecting rod (35), a sliding groove (331) for the sliding column (351) to slide is formed in the cam (33), a mounting shaft (341) is fixedly connected to the cam (33), a rack (34) is rotationally connected to the end, away from the sliding column (351), of the first connecting rod (35), a second connecting rod (36) is rotationally connected to the first connecting rod (35), a sliding rod (362) is fixedly connected to the second connecting rod (36), and a through groove matched with the sliding rod (362) is formed in the rack (34);
the unfolding mechanism further comprises two mounting plates (21) which are symmetrically and slidably connected to the mounting base (11), rectangular blocks (381) are slidably connected to the mounting plates (21), two threaded rods (38) with opposite screw threads are fixedly connected to the rectangular blocks (381) respectively, lantern rings (372) are fixedly connected to the threaded rods (38), rectangular frames (37) are fixedly connected to the lantern rings (372), toothed rings (371) are fixedly connected to the rectangular frames (37), the inner diameter of the toothed rings (371) is larger than the diameter of the threaded rods (38), the toothed racks (34) are intermittently meshed with the toothed rings (371), and two limiting plates (15) which are attached to the toothed rings (371) are symmetrically and fixedly connected to the two sides of the toothed rings (371) on the bottom plate (1).
2. The teaching robot of claim 1, wherein the automatically adjusting the volume and screen size comprises:
the cleaning mechanism comprises two vertical plates (13) which are symmetrically and fixedly connected to the bottom plate (1), first telescopic rods (41) are fixedly connected to the two vertical plates (13), transverse rods (4) are fixedly connected to the two first telescopic rods (41), racks (34) intermittently abut against the transverse rods (4), first tension springs (42) are sleeved on the first telescopic rods (41), and two ends of each first tension spring (42) are fixedly connected to the corresponding vertical plate (13) and the corresponding transverse rod (4);
the cleaning mechanism further comprises a connecting block (48) fixedly connected to the bottom plate (1), two second telescopic rods (481) are fixedly connected to the connecting block (48), one ends, far away from the connecting block (48), of the two second telescopic rods (481) are fixedly connected with an L-shaped frame (47) together, second tension springs (482) are sleeved on the two second telescopic rods (481), two ends of the second tension springs (482) are fixedly connected to the connecting block (48) and the L-shaped frame (47) respectively, and a rotating column (44) is connected to the L-shaped frame (47) in a rotating mode;
the unfolding mechanism is provided with a lifting mechanism for lifting the display screen (2), the lifting mechanism comprises a first piston cylinder (5) fixedly connected to the vertical plate (13), a first piston rod (51) is connected to the first piston cylinder (5) in a sliding mode, the mounting plate (21) is intermittently abutted to the first piston rod (51), and a spring (52) is arranged in the first piston cylinder (5).
3. The teaching robot of claim 2, wherein the automatically adjusting the volume and screen size comprises: the rotary column (44) is fixedly connected with a pull rope (43), one end, away from the rotary column (44), of the pull rope (43) is fixedly connected to the cross rod (4), and the cam (33) is intermittently abutted to the L-shaped frame (47).
4. A teaching robot for automatically adjusting volume and screen size according to claim 3 and characterized in that: the cleaning mechanism further comprises a brush head (45) fixedly connected to the bottom of the rotating column (44), a torsion spring (46) is sleeved on the rotating column (44), and two ends of the torsion spring (46) are fixedly connected to the L-shaped frame (47) and the brush head (45).
5. The teaching robot of claim 2, wherein the automatically adjusting the volume and screen size comprises: both ends of the spring (52) are fixedly connected to the first piston cylinder (5) and the first piston rod (51) respectively.
6. The teaching robot for automatically adjusting volume and screen size according to claim 5, wherein: the lifting mechanism further comprises a second piston cylinder (54) fixedly connected in the bottom plate (1), a second piston rod (55) is connected to the second piston cylinder (54) in a sliding mode, the top of the second piston rod (55) is fixedly connected to the lower surface of the mounting seat (11), an air pipe (53) is fixedly connected to the second piston cylinder (54), and one end, away from the second piston cylinder (54), of the air pipe (53) is fixedly connected to the first piston cylinder (5).
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| CN114743412B true CN114743412B (en) | 2024-03-15 |
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