CN214541178U - Higher education demonstration board - Google Patents
Higher education demonstration board Download PDFInfo
- Publication number
- CN214541178U CN214541178U CN202120373658.2U CN202120373658U CN214541178U CN 214541178 U CN214541178 U CN 214541178U CN 202120373658 U CN202120373658 U CN 202120373658U CN 214541178 U CN214541178 U CN 214541178U
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- demonstration board
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- helical gear
- transmission
- pivot
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- 230000005540 biological transmission Effects 0.000 claims description 38
- 230000002457 bidirectional effect Effects 0.000 claims description 22
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 4
- 230000001755 vocal effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses an advanced education demonstration board relates to education demonstration board technical field, specifically is an advanced education demonstration board, including base, drive belt, the sliding tray has been seted up on the surface of base, the inner chamber of sliding tray rotates and is connected with two-way lead screw, one side fixedly connected with left column on base surface. This higher education demonstration board, through first pivot, the cooperation of second helical gear and first helical gear is used, it is rotatory to rotate first pivot and drive the second helical gear, the meshing that utilizes second helical gear and first helical gear drives the demonstration board and takes place to rotate, thereby adjust the angle of demonstration board, the function of adjusting the angle of demonstration board has been realized, traditional higher education demonstration board has been avoided and angle to the demonstration board can not be adjusted, can not place the demonstration board level and use some teaching equipment to carry out the problem of demonstration, the practicality of this higher education demonstration board has been improved.
Description
Technical Field
The utility model relates to an education demonstration board technical field specifically is an advanced education demonstration board.
Background
Higher education is professional education and vocational education which are carried out on the basis of completing middle education, is a main social activity for cultivating high-level specialized talents and vocational personnel, is one of the important components which are mutually associated in an education system, generally comprises various education institutions which take high-level learning, cultivation, teaching, research and social services as main tasks and activities, and needs to use a demonstration board to carry out textual and visual demonstration on the knowledge of the lecture in the process of the higher education, but the existing higher education demonstration board cannot be turned over at any angle, cannot adjust the demonstration board from a vertical state to a horizontal state to place some teaching equipment for demonstration, cannot adjust the height at will, and when more internal personnel exist in a classroom, the backward learners cannot clearly see the demonstration content clearly and cannot meet the requirements of the use, we have therefore proposed an advanced education demonstration board.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides an advanced education demonstration board has solved the problem of proposing in the above-mentioned background art.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a higher education demonstration board comprises a base and a transmission belt, wherein a sliding groove is formed in the surface of the base, a bidirectional screw rod is rotatably connected to the inner cavity of the sliding groove, a left upright post is fixedly connected to one side of the surface of the base, a right upright post is fixedly connected to the other side of the surface of the base, a limiting groove is formed in the inner side of the left upright post, another limiting groove is formed in the inner cavity of the right upright post, a lifting plate is clamped to the inner sides of the two limiting grooves, sliding posts in opposite directions are respectively sleeved at the two ends of the bidirectional screw rod in a threaded manner, supporting rods are rotatably connected to the tops of the two sliding posts, one ends of the two supporting rods are rotatably connected with the bottom of the lifting plate, the demonstration board is rotatably connected to the inner side of the lifting plate, a first transmission groove is formed in the lifting plate, a fixing groove is formed in the lifting plate, and a first rotating shaft is rotatably connected to the top of the lifting plate, the one end of first pivot runs through the inner chamber of fixed slot and extends to the inner chamber of first transmission groove, the fixed cover of one end of first pivot has connect the second helical gear, the one end of demonstration board pivot extends to the inner chamber of first transmission groove and the fixed cover has connect first helical gear, first helical gear and second helical gear intermeshing.
Preferably, a second transmission groove is formed in the base, one end of the bidirectional screw rod extends to an inner cavity of the second transmission groove, and a belt pulley is fixedly sleeved on the bidirectional screw rod.
Preferably, a third transmission groove is formed in the left upright post, a second rotating shaft is rotatably connected to the inside of the third transmission groove, another belt pulley is fixedly sleeved on the surface of the second rotating shaft, and the two belt pulleys are connected through a transmission belt.
Preferably, one end of the second rotating shaft extends to the outside of the left upright post.
Preferably, a spur gear is fixedly sleeved on the surface of the first rotating shaft and in an inner cavity of the fixing groove.
Preferably, the compression groove has been seted up to the inside of lifter plate, the inner wall fixedly connected with spring in compression groove, the grafting round pin has been cup jointed in the inboard activity of spring, the one end of grafting round pin extends to the inner chamber of fixed slot and interlock each other with the straight-teeth gear, the surface of grafting round pin just is located the inner chamber fixedly connected with dog in compression groove, the side of dog and the one end fixed connection of spring, the other end of grafting round pin extends to the outside and the joint of lifter plate and has the pull ring.
Preferably, the bottom of the inner cavity of the sliding groove is fixedly connected with a supporting seat, and the supporting seat is rotatably connected with a bidirectional screw rod.
The utility model provides an advanced education demonstration board possesses following beneficial effect:
1. this higher education demonstration board, through first pivot, the cooperation of second helical gear and first helical gear is used, it is rotatory to rotate first pivot and drive the second helical gear, the meshing that utilizes second helical gear and first helical gear drives the demonstration board and takes place to rotate, thereby adjust the angle of demonstration board, the function of adjusting the angle of demonstration board has been realized, traditional higher education demonstration board has been avoided and angle to the demonstration board can not be adjusted, can not place the demonstration board level and use some teaching equipment to carry out the problem of demonstration, the practicality of this higher education demonstration board has been improved.
2. This higher education demonstration board drives the belt pulley through rotating the second pivot and rotates, the transmission that utilizes the drive belt drives two-way lead screw and takes place to rotate, utilize the slip post to adjust the angle of bracing piece at the slip on two-way lead screw surface, and then highly adjust lifter plate and demonstration board, it can not adjust to have avoided traditional higher education demonstration board height, back row personnel can not clearly see the problem of demonstration content, the practicality of this higher education demonstration board has been improved.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a front schematic view of the present invention;
fig. 3 is a schematic view of the inside of the fixing groove of the present invention;
fig. 4 is a schematic sectional view of the first transmission groove of the present invention.
In the figure: 1. a base; 2. a left upright post; 3. a right upright post; 4. a limiting groove; 5. a lifting plate; 6. a demonstration board; 7. a first transmission groove; 8. a first helical gear; 9. fixing grooves; 10. a first rotating shaft; 11. a spur gear; 12. a second helical gear; 13. a sliding groove; 14. a bidirectional screw rod; 16. a sliding post; 17. a support bar; 18. a supporting seat; 19. a second transmission groove; 20. a third transmission groove; 21. a second rotating shaft; 22. a belt pulley; 23. a transmission belt; 24. a plug pin; 25. a compression groove; 26. a spring; 27. a stopper; 28. and (4) a pull ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1 to 4, the present invention provides a technical solution: a higher education demonstration board comprises a base 1 and a transmission belt 23, wherein a sliding groove 13 is formed in the surface of the base 1, a bidirectional screw rod 14 is rotatably connected to the inner cavity of the sliding groove 13, a supporting seat 18 is fixedly connected to the bottom of the inner cavity of the sliding groove 13, the supporting seat 18 is rotatably connected with the bidirectional screw rod 14, the supporting seat 18 is used for supporting the bidirectional screw rod 14, so that the strength of the bidirectional screw rod 14 is enhanced, the problem that the bidirectional screw rod 14 is deformed due to the fact that the weight of a lifting plate 5 and the weight of a demonstration board 6 are all transmitted to the bidirectional screw rod 14 through a supporting rod 17 and a sliding column 16 is solved, the stability of the higher education demonstration board is improved, a second transmission groove 19 is formed in the base 1, one end of the bidirectional screw rod 14 extends to the inner cavity of the second transmission groove 19 and is fixedly sleeved with a belt pulley 22, a left upright column 2 is fixedly connected to one side of the surface of the base 1, a third transmission groove 20 is formed in the left upright column 2, a second rotating shaft 21 is rotatably connected inside the third transmission groove 20, one end of the second rotating shaft 21 extends to the outside of the left upright post 2, another belt pulley 22 is fixedly sleeved on the surface of the second rotating shaft 21, the two belt pulleys 22 are in transmission connection through a transmission belt 23, the other side of the surface of the base 1 is fixedly connected with the right upright post 3, the inner side of the left upright post 2 is provided with a limiting groove 4, the inner cavity of the right upright post 3 is provided with another limiting groove 4, the inner sides of the two limiting grooves 4 are clamped with a lifting plate 5, the lifting plate 5 is ensured not to incline through the limiting groove 4 and can only move up and down, two ends of the bidirectional screw rod 14 are respectively in threaded sleeve connection with sliding posts 16 in opposite directions, the tops of the two sliding posts 16 are both rotatably connected with supporting rods 17, one ends of the two supporting rods 17 are both rotatably connected with the bottoms of the lifting plate 5, the inner side of the lifting plate 5 is rotatably connected with a demonstration plate 6, the inside of the lifting plate 5 is provided with a first transmission groove 7, the inside of the lifting plate 5 is provided with a fixed groove 9, the top of the lifting plate 5 is rotatably connected with a first rotating shaft 10, one end of the first rotating shaft 10 penetrates through the inner cavity of the fixed groove 9 and extends to the inner cavity of the first transmission groove 7, one end of the first rotating shaft 10 is fixedly sleeved with a second helical gear 12, one end of the rotating shaft of the demonstration plate 6 extends to the inner cavity of the first transmission groove 7 and is fixedly sleeved with a first helical gear 8, the first helical gear 8 is mutually meshed with the second helical gear 12, a belt pulley 22 is driven to rotate by rotating a second rotating shaft 21, a bidirectional screw 14 is driven to rotate by the transmission of a transmission belt 23, the angle of a support rod 17 is adjusted by the sliding of a sliding column 16 on the surface of the bidirectional screw 14, further, the heights of the lifting plate 5 and the demonstration plate 6 are adjusted, and the practicability of the education demonstration plate is improved, the surface of the first rotating shaft 10 and the inner cavity of the fixed groove 9 are fixedly sleeved with a straight gear 11, the inside of the lifting plate 5 is provided with a compression groove 25, the inner wall of the compression groove 25 is fixedly connected with a spring 26, the inner side of the spring 26 is movably sleeved with an inserting pin 24, one end of the inserting pin 24 extends to the inner cavity of the fixed groove 9 and is mutually meshed with the straight gear 11, the surface of the inserting pin 24 and the inner cavity of the compression groove 25 are fixedly connected with a stop block 27, the side surface of the stop block 27 is fixedly connected with one end of the spring 26, the other end of the inserting pin 24 extends to the outside of the lifting plate 5 and is clamped with a pull ring 28, and the straight gear 11 is fixed by utilizing the meshing of the inserting pin 24 and the straight gear 11, when the first rotating shaft 10 drives the spur gear 11 to rotate clockwise, the spur gear 11 extrudes the plug pin 24 to contract inwards in a reciprocating manner, and simultaneously, the spur gear 11 is prevented from rotating reversely, so that the position of the demonstration board 6 is fixed.
In conclusion, when the advanced education demonstration board is used, firstly, the second rotating shaft 21 is rotated to drive one belt pulley 22 to rotate, the other belt pulley 22 is driven to rotate through the transmission of the transmission belt 23, so that the bidirectional screw rod 14 is driven to rotate, the positions of the two sliding columns 16 are driven to change through the rotation of the bidirectional screw rod 14, the lifting plate 5 is supported through the support rod 17, further, the heights of the lifting plate 5 and the demonstration board 6 are adjusted, when the demonstration board 6 needs to be adjusted from a vertical state to a horizontal state for demonstrating teaching equipment, the first rotating shaft 10 is rotated to drive the second helical gear 12 to rotate, the demonstration board 6 is driven to rotate through the meshing transmission of the second helical gear 12 and the first helical gear 8 until the demonstration board 6 rotates to the horizontal state, meanwhile, the straight gear 11 is driven to rotate when the first rotating shaft 10 rotates, the position of the straight gear 11 is continuously fixed through the plugging pin 24, therefore, the position of the demonstration board 6 is fixed, when the demonstration board 6 in a horizontal state needs to be adjusted to be in a vertical state, the pull ring 28 is pulled to drive the engagement relation between the plug pin 24 and the spur gear 11 to be released, and the first rotating shaft 10 is rotated reversely.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a higher education demonstration board, includes base (1), drive belt (23), its characterized in that: the surface of the base (1) is provided with a sliding groove (13), the inner cavity of the sliding groove (13) is rotatably connected with a bidirectional screw rod (14), one side of the surface of the base (1) is fixedly connected with a left upright (2), the other side of the surface of the base (1) is fixedly connected with a right upright (3), the inner side of the left upright (2) is provided with a limiting groove (4), the inner cavity of the right upright (3) is provided with another limiting groove (4), the inner sides of the two limiting grooves (4) are clamped with lifting plates (5), two ends of the bidirectional screw rod (14) are respectively in threaded sleeve joint with sliding columns (16) in opposite directions, the tops of the two sliding columns (16) are respectively and rotatably connected with supporting rods (17), one ends of the two supporting rods (17) are respectively and rotatably connected with the bottoms of the lifting plates (5), the inner sides of the lifting plates (5) are rotatably connected with demonstration plates (6), first transmission slot (7) have been seted up to the inside of lifter plate (5), fixed slot (9) have been seted up to the inside of lifter plate (5), the top of lifter plate (5) is rotated and is connected with first pivot (10), the inner chamber that the inner chamber of fixed slot (9) and extended to first transmission slot (7) is run through to the one end of first pivot (10), the fixed cover of one end of first pivot (10) has been cup jointed second helical gear (12), the one end of demonstration board (6) pivot extends to the inner chamber and the fixed cover of first transmission slot (7) and has been cup jointed first helical gear (8), first helical gear (8) and second helical gear (12) intermeshing.
2. An advanced education demonstration board according to claim 1 wherein: a second transmission groove (19) is formed in the base (1), one end of the bidirectional screw rod (14) extends to an inner cavity of the second transmission groove (19) and is fixedly sleeved with a belt pulley (22).
3. An advanced education demonstration board according to claim 1 wherein: third transmission groove (20) have been seted up to the inside of left side stand (2), the internal rotation of third transmission groove (20) is connected with second pivot (21), another belt pulley (22) has been cup jointed to the fixed surface of second pivot (21), two belt pulley (22) pass through drive belt (23) transmission and connect.
4. A higher education demonstration board according to claim 3 wherein: one end of the second rotating shaft (21) extends to the outside of the left upright post (2).
5. An advanced education demonstration board according to claim 1 wherein: and a straight gear (11) is fixedly sleeved on the surface of the first rotating shaft (10) and is positioned in an inner cavity of the fixing groove (9).
6. An advanced education demonstration board according to claim 1 wherein: compression groove (25) have been seted up to the inside of lifter plate (5), inner wall fixedly connected with spring (26) of compression groove (25), grafting round pin (24) have been cup jointed in the inboard activity of spring (26), the one end of grafting round pin (24) extends to the inner chamber of fixed slot (9) and meshes each other with straight-teeth gear (11), the surface of grafting round pin (24) and the inner chamber fixedly connected with dog (27) that are located compression groove (25), the side of dog (27) and the one end fixed connection of spring (26), the outside and the joint that the other end of grafting round pin (24) extends to lifter plate (5) have pull ring (28).
7. An advanced education demonstration board according to claim 1 wherein: the bottom of the inner cavity of the sliding groove (13) is fixedly connected with a supporting seat (18), and the supporting seat (18) is rotatably connected with the bidirectional screw rod (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120373658.2U CN214541178U (en) | 2021-02-07 | 2021-02-07 | Higher education demonstration board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120373658.2U CN214541178U (en) | 2021-02-07 | 2021-02-07 | Higher education demonstration board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214541178U true CN214541178U (en) | 2021-10-29 |
Family
ID=78235324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120373658.2U Expired - Fee Related CN214541178U (en) | 2021-02-07 | 2021-02-07 | Higher education demonstration board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214541178U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114903320A (en) * | 2022-05-12 | 2022-08-16 | 浙江工业大学 | A multi-directional display device for industrial design products and a display method thereof |
| CN115457858A (en) * | 2022-09-13 | 2022-12-09 | 贵州警察学院 | Statistics and analysis device |
-
2021
- 2021-02-07 CN CN202120373658.2U patent/CN214541178U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114903320A (en) * | 2022-05-12 | 2022-08-16 | 浙江工业大学 | A multi-directional display device for industrial design products and a display method thereof |
| CN115457858A (en) * | 2022-09-13 | 2022-12-09 | 贵州警察学院 | Statistics and analysis device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |