CN110877492A - Device for drawing mathematical graph - Google Patents
Device for drawing mathematical graph Download PDFInfo
- Publication number
- CN110877492A CN110877492A CN201811032302.1A CN201811032302A CN110877492A CN 110877492 A CN110877492 A CN 110877492A CN 201811032302 A CN201811032302 A CN 201811032302A CN 110877492 A CN110877492 A CN 110877492A
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- China
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- fixed
- plate
- connecting rod
- sliding block
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
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- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a device for drawing mathematical figures, wherein an end plate is fixed at one side of the top end of a connecting vertical plate close to a black plate frame, a connecting rotating shaft is inserted on the end plate, a handle is fixed at one end of the connecting rotating shaft, a rotating disc is fixed at the other end of the connecting rotating shaft, a connecting pin is fixed between the two rotating discs, and the connecting pin is inserted on a first connecting rod; the top end of the first connecting rod is hinged with a second connecting rod, the other end of the second connecting rod is hinged with a third connecting rod, the other end of the third connecting rod is hinged with a lever, and the other end of the lever is hinged on the fixed hinge seat; a first rack is fixed on the vertical rail, a first gear is meshed with the first rack, the first gear is fixed on an output shaft of a first stepping motor, and the first stepping motor is fixed on a first sliding block; one end of the first sliding block is fixed with a transverse rail, a second rack is fixed on the transverse rail, a second gear is meshed with the second rack, the second gear is fixed on an output shaft of a second stepping motor, the second stepping motor is fixed on the second sliding block, and a chalk mounting seat is further arranged on the second sliding block. The method has the beneficial effect that the graph is drawn accurately.
Description
Technical Field
The invention relates to the technical field of graph drawing equipment, in particular to a device for drawing a mathematical graph.
Background
In the existing mathematical teaching process, drawing of various complex graphs is usually involved, and the traditional method can only be used for manually drawing by chalk or a touch pen according to approximate requirements to meet a basically qualified requirement, so that on one hand, the drawing of the complex graphs is troublesome; on the other hand, the drawn graph is not intuitive enough for the reflection of the conclusion in the explanation process.
Disclosure of Invention
In order to overcome the technical defects, the invention provides a device for drawing mathematical graphs.
In order to achieve the purpose, the invention adopts the following technical scheme:
a device for drawing mathematical figures comprises a blackboard, a blackboard frame and a chalk groove, wherein the blackboard frame is fixed on the wall of a classroom, the blackboard is fixed on the blackboard frame, and the chalk groove is fixed at the lower end of the blackboard; an upper clamping plate and a lower clamping plate are respectively arranged at the upper end and the lower end of the chalk groove, the two ends of the upper clamping plate and the lower clamping plate are fixed on the connecting vertical plate, an end plate is fixed at one side, close to the blackboard, of the top end of the connecting vertical plate, and the end plate is in contact with the blackboard; a connecting rotating shaft is inserted on the end plate, a handle is fixed at one end of the connecting rotating shaft, a rotating disc is fixed at the other end of the connecting rotating shaft, a connecting pin is fixed between the two rotating discs, and the connecting pin is inserted on the first connecting rod; the top end of the first connecting rod is hinged with a second connecting rod, the second connecting rod is inserted into the vertical rail, the top end of the vertical rail is fixed on a top plate, the top plate is fixed at the top end of the upper rail, the upper rail is fixed at the top end of the blackboard frame, the other end of the second connecting rod extends out of the vertical rail and is hinged with a third connecting rod, the other end of the third connecting rod is hinged with a lever, the other end of the lever is hinged on a fixed hinge seat, and the fixed hinge seat is fixed on the; a pressure rod connecting rod is further inserted and fixed on the lever, pressure rods are fixed at two ends of the pressure rod connecting rod, a roller arm is hinged to the lower end of each pressure rod, a roller is arranged at the other end of each roller arm, an inserting shaft is further inserted on each roller arm, two ends of each inserting shaft are fixed on a supporting seat, the supporting seat is fixed at the bottom end of the vertical plate, and the top end of the vertical plate is fixed on the top plate; an upper limit plate and a lower limit plate are fixed on the vertical plate, a fixed plate is arranged between the upper limit plate and the lower limit plate, the pressure rod is inserted on the fixed plate in a sliding manner, a brake bent plate is also fixed on the fixed plate, and a brake pad is fixed at one end of the brake bent plate close to the inner side wall of the upper rail; the compression rod is further fixedly provided with a sleeve, a telescopic rod mounting groove is formed in the sleeve, a telescopic rod is inserted in the telescopic rod mounting groove, a spring baffle is fixedly arranged on the telescopic rod, a compression spring is arranged between the spring baffle and the side wall of the telescopic rod mounting groove, one end, away from the sleeve, of the telescopic rod is hinged to a small connecting rod, and the other end of the small connecting rod is hinged to the brake bent plate; a first rack is fixed on the vertical rail, a first gear is meshed with the first rack, the first gear is fixed on an output shaft of a first stepping motor, the first stepping motor is fixed on a first sliding block, and the sliding block is sleeved on the vertical rail; one end of the first sliding block is fixed with a transverse rail, a second rack is fixed on the transverse rail, a second gear is meshed with the second rack, the second gear is fixed on an output shaft of a second stepping motor, the second stepping motor is fixed on the second sliding block, the second sliding block is sleeved on the transverse rail, and a chalk mounting seat is further arranged on the second sliding block.
Further, the chalk mount pad includes fixed cover, interior slider, chalk, spring one, ejector pin, spring two and overcoat, and fixed cover cartridge is fixed on slider two, and it is provided with interior slider to slide in the fixed cover, is provided with spring one between the interior diapire of interior slider and fixed cover, and the cartridge has the chalk in the interior slider, and outside the fixed cover was stretched out to the one end of chalk, the other end and the ejector pin of chalk contacted, and the one end setting of ejector pin is in the overcoat, is connected with spring two between the interior roof of ejector pin and overcoat, and wherein the overcoat passes through the outside of threaded fixation at fixed cover.
The invention has the beneficial effects that: complex mathematical graphs can be conveniently drawn, and the drawn graphs reflect conclusions very intuitively in the explanation process; the method can enable students to watch the manufacturing process of the mathematical graph curve, and improve learning interest.
Drawings
FIG. 1 is a first schematic structural diagram of an apparatus for drawing mathematical graphs according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1A;
FIG. 3 is a partial enlarged view of FIG. 1B;
FIG. 4 is an enlarged view of a portion of FIG. 3C;
FIG. 5 is an enlarged view of a portion of FIG. 3D;
FIG. 6 is a second schematic structural diagram of an apparatus for drawing mathematical graphs according to the present invention;
fig. 7 is a partial enlarged view at fig. 6E;
FIG. 8 is an enlarged view of a portion of FIG. 6F;
FIG. 9 is a schematic view of the mounting position of the first slider;
FIG. 10 is a schematic view of a chalk mount;
fig. 11 is a partial enlarged view of fig. 10H;
FIG. 12 is a schematic view of the brake pad during braking;
FIG. 13 is a schematic view showing the state of the roller when the brake pad is braking;
in the figure, 1, blackboard; 2. a blackboard frame; 3. a chalk groove; 4. an upper clamping plate; 5. a lower clamping plate; 6. connecting a vertical plate; 7. an end plate; 8. connecting the rotating shaft; 9. a handle; 10. a turntable; 11. a connecting pin; 12. a first connecting rod; 13. a second connecting rod; 14. erecting a rail; 15. a third connecting rod; 16. a lever; 17. fixing the hinge seat; 18. a top plate; 19. an upper rail; 20. a pressure lever; 21. a roller arm; 22. a roller; 23. inserting a shaft; 24. a supporting seat; 25. a vertical plate; 26. an upper limiting plate; 27. a lower limiting plate; 28. a fixing plate; 29. a brake bending plate; 30. a sleeve; 31. a telescopic rod; 32. an expansion link mounting groove; 33. a compression spring; 34. a spring baffle; 35. a small connecting rod; 36. a brake pad; 37. a first sliding block; 38. a first rack; 39. a first gear; 40. a first stepping motor; 41. a transverse rail; 42. a second sliding block; 43. a second rack; 44. a second gear; 45. a second stepping motor; 46. a chalk mounting seat; 47. a pressure bar connecting rod; 4601. fixing a sleeve; 4602. an inner slide block; 4603. chalk; 4604. a first spring; 4605. a top rod; 4606. a second spring; 4607. and (4) coating.
Detailed Description
The technical scheme in the embodiment of the invention will be clearly and completely described with reference to the attached drawings in the embodiment of the invention, as shown in fig. 1-13, a device for drawing mathematical figures comprises a blackboard 1, a blackboard frame 2 and a chalk groove 3, wherein the blackboard frame 2 is fixed on the wall of a classroom, the blackboard 1 is fixed on the blackboard frame 2, and the chalk groove 3 is fixed at the lower end of the blackboard 1; an upper clamping plate 4 and a lower clamping plate 5 are respectively arranged at the upper end and the lower end of the chalk groove 3, the two ends of the upper clamping plate 4 and the lower clamping plate 5 are fixed on a connecting vertical plate 6, an end plate 7 is fixed at one side, close to the blackboard 1, of the top end of the connecting vertical plate 6, the end plate 7 is in contact with the blackboard 1, and the end plate 7 can slide on the blackboard 1; a connecting rotating shaft 8 is inserted on the end plate 7, a handle 9 is fixed at one end of the connecting rotating shaft 8, a rotating disc 10 is fixed at the other end of the connecting rotating shaft 8, a connecting pin 11 is fixed between the two rotating discs 10, and the connecting pin 11 is inserted on a first connecting rod 12; a second connecting rod 13 is hinged to the top end of the first connecting rod 12, the second connecting rod 13 is inserted into the vertical rail 14, the top end of the vertical rail 14 is fixed to a top plate 18, the top plate 18 is fixed to the top end of an upper rail 19, the upper rail 19 is fixed to the top end of the blackboard frame 2, a third connecting rod 15 is hinged to the other end of the second connecting rod 13, extends out of the vertical rail 14, the other end of the third connecting rod 15 is hinged to a lever 16, the other end of the lever 16 is hinged to a fixed hinge seat 17, and the fixed hinge seat 17 is fixed to the top plate; a pressure lever connecting rod 47 is further inserted and fixed on the lever 16, pressure levers 20 are fixed at two ends of the pressure lever connecting rod 47, a roller arm 21 is hinged at the lower end of the pressure lever 20, a roller 22 is arranged at the other end of the roller arm 21, an inserting shaft 23 is further inserted on the roller arm 21, two ends of the inserting shaft 23 are fixed on a supporting seat 24, the supporting seat 24 is fixed at the bottom end of the vertical plate 25, and the top end of the vertical plate 25 is fixed on the top plate 18; an upper limit plate 26 and a lower limit plate 27 are fixed on the vertical plate 25, a fixed plate 28 is arranged between the upper limit plate 26 and the lower limit plate 27, the pressure lever 20 is inserted on the fixed plate 28 in a sliding manner, a brake bent plate 29 is also fixed on the fixed plate 28, and a brake pad 36 is fixed at one end of the brake bent plate 29 close to the inner side wall of the upper rail 19; a sleeve 30 is further fixed on the compression bar 20, a telescopic rod installation groove 32 is formed in the sleeve 30, a telescopic rod 31 is inserted in the telescopic rod installation groove 32, a spring baffle 34 is fixed on the telescopic rod 31, and a compression spring 33 is arranged between the spring baffle 34 and the side wall of the telescopic rod installation groove 32, wherein one end of the telescopic rod 31, which is far away from the sleeve 30, is hinged with a small connecting rod 35, and the other end of the small connecting rod 35 is hinged on the brake bent plate 29; a first rack 38 is fixed on the vertical rail 14, the first rack 38 is meshed with a first gear 39, the first gear 39 is fixed on an output shaft of a first stepping motor 40, the first stepping motor 40 is fixed on a first sliding block 37, and the first sliding block 37 is sleeved on the vertical rail 14; a transverse rail 41 is fixed at one end of the first sliding block 37, a second rack 43 is fixed on the transverse rail 41, the second rack 43 is meshed with a second gear 44, the second gear 44 is fixed on an output shaft of a second stepping motor 45, the second stepping motor 45 is fixed on a second sliding block 42, the second sliding block 42 is sleeved on the transverse rail 41, and a chalk mounting seat 46 is further arranged on the second sliding block 42;
the chalk mounting seat 46 comprises a fixing sleeve 4601, an inner sliding block 4602, a chalk 4603, a first spring 4604, an ejector rod 4605, a second spring 4606 and an outer sleeve 4607, the fixing sleeve 4601 is fixedly inserted on the second sliding block 42, the inner sliding block 4602 is arranged in the fixing sleeve 4601 in a sliding mode, the first spring 4604 is arranged between the inner sliding block 4602 and the inner bottom wall of the fixing sleeve 4601, the chalk 4603 is inserted in the inner sliding block 4602, one end of the chalk 4603 extends out of the fixing sleeve 4601, the other end of the chalk 4603 is in contact with the ejector rod 4605, one end of the ejector rod 4605 is arranged in the outer sleeve 4607, the second spring 4606 is connected between the ejector rod 4605 and the inner top wall of the outer sleeve 4607, and the outer.
In this embodiment, the first stepping motor 40 and the second stepping motor 45 are electrically connected to the PLC controller through a driver, and the driver receives data output by the PLC controller to control the first stepping motor 40 and the second stepping motor 45 to move, thereby drawing a graph. When a figure needs to be drawn, firstly, the vertical rail 14 is manually pushed, so that the vertical rail 14 drives the top plate 18 and the roller 22 to slide above, and the vertical rail 14 drives the upper clamping plate 4 and the lower clamping plate 5 to slide below; after the sliding is in place, the handle 9 is manually rotated downwards, so that the handle 9 drives the rotary table 10 to rotate, the rotary table 10 drives the connecting pin 11 to rotate when rotating, the connecting pin 11 pulls the first connecting rod 12 downwards, the first connecting rod 12 drives the second connecting rod 13 and the third connecting rod 15 to move downwards, the third connecting rod 15 enables the lever 16 to rotate, the lever 16 presses the pressing rod 20 downwards through the pressing rod connecting rod 47, and the pressing rod 20 lifts the roller 22 through the roller arm 21, so that the roller 22 is not in contact with the inner bottom wall of the upper track 19 any more; meanwhile, the small connecting rod 35 is driven to rotate by the sleeve 30 and the telescopic rod 31 in the downward movement process of the pressure lever 20, at the moment, the telescopic rod 31 slides towards the inside of the telescopic rod installation groove 32 to compress the compression spring 33, when the small connecting rod 35 rotates past a balance position, under the action of the elastic force of the compression spring 33, the telescopic rod 31 and the small connecting rod 35 drive the brake bent plate 29 to move upwards, and the brake pad 36 on the brake bent plate 29 is contacted with the inner side wall of the upper rail 19 to perform brake fixing; at this time, the data can be transmitted to the driver through the PLC controller, so that the driver controls the first stepping motor 40 and the second stepping motor 45 to move, thereby drawing the graph.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (2)
1. The utility model provides a draw device of mathematics figure, includes blackboard (1), blackboard frame (2) and chalk groove (3), and blackboard frame (2) are fixed on the wall in classroom, are fixed with blackboard (1) on blackboard frame (2), and the lower extreme of blackboard (1) is fixed with chalk groove (3), its characterized in that: an upper clamping plate (4) and a lower clamping plate (5) are respectively arranged at the upper end and the lower end of the chalk groove (3), the two ends of the upper clamping plate (4) and the lower clamping plate (5) are fixed on a connecting vertical plate (6), an end plate (7) is fixed on one side, close to the blackboard (1), of the top end of the connecting vertical plate (6), and the end plate (7) is in contact with the blackboard (1); a connecting rotating shaft (8) is inserted on the end plate (7), a handle (9) is fixed at one end of the connecting rotating shaft (8), a rotating disc (10) is fixed at the other end of the connecting rotating shaft (8), a connecting pin (11) is fixed between the two rotating discs (10), and the connecting pin (11) is inserted on a first connecting rod (12); the top end of the first connecting rod (12) is hinged with a second connecting rod (13), the second connecting rod (13) is inserted into the vertical rail (14), the top end of the vertical rail (14) is fixed on the top plate (18), the top plate (18) is fixed on the top end of the upper rail (19), the upper rail (19) is fixed on the top end of the blackboard frame (2), the other end of the second connecting rod (13) extends out of the vertical rail (14) and is hinged with a third connecting rod (15), the other end of the third connecting rod (15) is hinged with a lever (16), the other end of the lever (16) is hinged on a fixed hinged seat (17), and the fixed hinged seat (17) is fixed on the top plate (18); a pressure rod connecting rod (47) is further inserted and fixed on the lever (16), pressure rods (20) are fixed at two ends of the pressure rod connecting rod (47), a roller arm (21) is hinged to the lower end of each pressure rod (20), a roller (22) is arranged at the other end of each roller arm (21), an inserting shaft (23) is further inserted and fixed on each roller arm (21), two ends of each inserting shaft (23) are fixed on a supporting seat (24), the supporting seat (24) is fixed at the bottom end of the vertical plate (25), and the top end of the vertical plate (25) is fixed on the top plate (18); an upper limit plate (26) and a lower limit plate (27) are fixed on the vertical plate (25), a fixed plate (28) is arranged between the upper limit plate (26) and the lower limit plate (27), the compression rod (20) is inserted on the fixed plate (28) in a sliding manner, a brake bent plate (29) is also fixed on the fixed plate (28), and a brake pad (36) is fixed at one end, close to the inner side wall of the upper rail (19), of the brake bent plate (29); a sleeve (30) is further fixed on the compression bar (20), a telescopic rod mounting groove (32) is formed in the sleeve (30), a telescopic rod (31) is inserted in the telescopic rod mounting groove (32), a spring baffle (34) is fixed on the telescopic rod (31), a compression spring (33) is arranged between the spring baffle (34) and the side wall of the telescopic rod mounting groove (32), one end, far away from the sleeve (30), of the telescopic rod (31) is hinged to a small connecting rod (35), and the other end of the small connecting rod (35) is hinged to a brake bent plate (29); a first rack (38) is fixed on the vertical rail (14), a first gear (39) is meshed with the first rack (38), the first gear (39) is fixed on an output shaft of a first stepping motor (40), the first stepping motor (40) is fixed on a first sliding block (37), and the first sliding block (37) is sleeved on the vertical rail (14); one end of the first sliding block (37) is fixed with a transverse rail (41), a second rack (43) is fixed on the transverse rail (41), the second rack (43) is meshed with a second gear (44), the second gear (44) is fixed on an output shaft of a second stepping motor (45), the second stepping motor (45) is fixed on the second sliding block (42), the second sliding block (42) is sleeved on the transverse rail (41), and a chalk mounting seat (46) is further arranged on the second sliding block (42).
2. An apparatus for rendering mathematical figures as defined in claim 1, wherein: the chalk mounting seat (46) comprises a fixing sleeve (4601), an inner sliding block (4602), a chalk (4603), a first spring (4604), an ejector rod (4605), a second spring (4606) and an outer sleeve (4607), the fixing sleeve (4601) is inserted and fixed on a second sliding block (42), the inner sliding block (4602) is arranged in the fixing sleeve (4601) in a sliding mode, the first spring (4604) is arranged between the inner sliding block (4602) and the inner bottom wall of the fixing sleeve (4601), the chalk (4603) is inserted and installed in the inner sliding block (4602), one end of the chalk (4603) extends out of the fixing sleeve (4601), the other end of the chalk (4603) is in contact with the ejector rod (4605), one end of the ejector rod (4605) is arranged in the outer sleeve (4607), the second spring (4606) is connected between the inner top wall of the ejector rod (4605) and the inner top wall of the outer sleeve (4607), and the outer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811032302.1A CN110877492A (en) | 2018-09-06 | 2018-09-06 | Device for drawing mathematical graph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811032302.1A CN110877492A (en) | 2018-09-06 | 2018-09-06 | Device for drawing mathematical graph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110877492A true CN110877492A (en) | 2020-03-13 |
Family
ID=69727557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811032302.1A Pending CN110877492A (en) | 2018-09-06 | 2018-09-06 | Device for drawing mathematical graph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110877492A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048821A (en) * | 1989-07-18 | 1991-01-30 | 曾德邻 | A kind ofly write, the fully automatic blackboard of drawing, sound picture unification |
| CN106340210A (en) * | 2016-10-26 | 2017-01-18 | 刘巍巍 | Teaching robot system |
| CN106541749A (en) * | 2016-12-06 | 2017-03-29 | 大连交通大学 | Blackboard Automatic Drawing teaching aid |
| CN106739677A (en) * | 2017-03-11 | 2017-05-31 | 枣庄市盘古精密机械科技有限公司 | A kind of mathematical education blackboard |
| CN207449475U (en) * | 2017-06-13 | 2018-06-05 | 王墩田 | A kind of line-drawing device for English teaching |
-
2018
- 2018-09-06 CN CN201811032302.1A patent/CN110877492A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048821A (en) * | 1989-07-18 | 1991-01-30 | 曾德邻 | A kind ofly write, the fully automatic blackboard of drawing, sound picture unification |
| CN106340210A (en) * | 2016-10-26 | 2017-01-18 | 刘巍巍 | Teaching robot system |
| CN106541749A (en) * | 2016-12-06 | 2017-03-29 | 大连交通大学 | Blackboard Automatic Drawing teaching aid |
| CN106739677A (en) * | 2017-03-11 | 2017-05-31 | 枣庄市盘古精密机械科技有限公司 | A kind of mathematical education blackboard |
| CN207449475U (en) * | 2017-06-13 | 2018-06-05 | 王墩田 | A kind of line-drawing device for English teaching |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200313 |
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| WD01 | Invention patent application deemed withdrawn after publication |