CN112874210A - Mathematics is drawn study and is used changeable formula display device with mathematical education - Google Patents
Mathematics is drawn study and is used changeable formula display device with mathematical education Download PDFInfo
- Publication number
- CN112874210A CN112874210A CN202110229986.XA CN202110229986A CN112874210A CN 112874210 A CN112874210 A CN 112874210A CN 202110229986 A CN202110229986 A CN 202110229986A CN 112874210 A CN112874210 A CN 112874210A
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- Prior art keywords
- drawing board
- mathematics
- connecting rod
- board
- edge
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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
- B43L5/00—Drawing boards
- B43L5/002—Drawing boards with pivoting drawing surface
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
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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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- 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
- B43L13/005—Portable combined drawing-aids including boards
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- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a multivariable display device for mathematical drawing learning and mathematical teaching, which comprises a base, wherein the base is upwards provided with a connecting rod, the upper end of the connecting rod is rotatably connected with a drawing board, an air pressure support rod is rotatably connected between the upper end of one side of the drawing board and the connecting rod, the air pressure support rod comprises a support sleeve and a support inner rod which is slidably connected with the inner wall of the support sleeve, the outer side of the support sleeve is provided with a limit ring, a hole plugging sleeve is slidably connected between the limit ring and a connecting seat, a spring is arranged between the hole plugging sleeve and the connecting seat, and the support sleeve is provided with an air vent between the; both sides all rotate about the drawing board and are connected with the axis of rotation that is vertical setting, and the outer wall of each axis of rotation all is connected with tangent extension board with it, and the higher authority of drawing board is provided with the connecting strip, and the upper end of each axis of rotation all rotates with the connecting strip to be connected. The invention can draw the graph horizontally and display the graph vertically, and can change the size of the drawing board according to the requirement so as to meet the teaching requirement.
Description
Technical Field
The invention relates to the technical field of teaching aids, in particular to a changeable display device for mathematical drawing learning and mathematical teaching.
Background
Along with the diversification of teaching mode, mode auxiliary teaching such as show begins to be adopted in more and more mathematical education, is favorable to student's understanding and exchange, at the mathematical education in-process, need use the teaching tool of various, and the teacher realizes teaching work through the teaching tool, can effectual improvement student's learning efficiency.
Teacher is when drawing mathematical graph, because the blackboard is vertical placing, it is not very convenient to carry out the drawing of figure with drawing tool, when switching drawing tool in particular, need take one to put one, compares in drawing mathematical graph efficiency on the horizontal plate and will hang down a lot.
Disclosure of Invention
The invention aims to provide a changeable display device for mathematics drawing learning and mathematics teaching, which can draw graphs horizontally and display vertically and can change the size of a drawing board according to requirements so as to meet the teaching requirements.
The technical purpose of the invention is realized by the following technical scheme:
a changeable display device for mathematics drawing learning and mathematics teaching comprises a base, wherein a connecting rod is arranged upwards on the base, the upper end of the connecting rod is rotatably connected with a drawing board, an air pressure supporting rod is rotatably connected between the upper end of one side of the drawing board and the connecting rod, the connecting rod and the air pressure supporting rod are both positioned at the rear side of the drawing board, the air pressure supporting rod comprises a supporting sleeve and a supporting inner rod which is slidably connected with the inner wall of the supporting sleeve, one end, far away from an opening, of the supporting sleeve is rotatably connected with the upper end of one side of the drawing board through a connecting seat, one end, far away from the supporting sleeve, of the supporting inner rod is rotatably connected with the outer wall of the connecting rod, a limiting ring is arranged outside the supporting sleeve, a hole plugging sleeve is slidably connected between the limiting ring and the connecting seat, and a spring is, the support sleeve is provided with a vent hole between the limiting ring and the connecting seat, and the vent hole is blocked by the hole blocking sleeve when the spring is in a normal state;
the left side and the right side of the drawing board are rotatably connected with vertically arranged rotating shafts, the outer wall of each rotating shaft is connected with an extending board tangent to the rotating shaft, each extending board can rotate to be attached to the rear side of the drawing board, the multi-edge cutting board is characterized in that a connecting strip is arranged on the upper edge of the drawing board, the upper end of each rotating shaft is rotatably connected with the connecting strip, a first multi-edge limiting hole and a second multi-edge limiting hole which are sequentially communicated are formed in the left side and the right side of each rotating shaft in a downward penetrating mode, the cross section of each second multi-edge limiting hole is larger than the cross section of the corresponding first multi-edge limiting hole, multi-edge jacks matched with the corresponding second multi-edge limiting holes are formed in the upper end of each rotating shaft in a downward penetrating mode, a second multi-edge cutting strip is connected in each second multi-edge limiting hole in a sliding mode, and each second multi-edge cutting strip is connected with a first multi-edge cutting strip which is connected with the corresponding first multi.
By adopting the technical scheme, when mathematical figures need to be drawn in the teaching process, one hand pulls the hole plugging sleeve backwards to compress the spring to expose the vent hole, then the drawing board is rotated to be horizontal, and the air in the air pressure supporting rod is discharged from the vent hole, the air pressure supporting rod is shortened, and after the hand is loosened, the vent hole is blocked again, so that the air pressure supporting rod, the connecting rod and the drawing board form a triangular stable structure, and the drawing board is kept horizontal, when the drawing board is not large enough, the first multilateral slip is pulled to pull the second multilateral slip out of the multilateral insertion hole, then the extension board is rotated to be parallel to the drawing board, the second multilateral slip is inserted into the multilateral insertion hole again to keep the extension board parallel to the drawing board for drawing, after the drawing is finished, pulling stifled hole sleeve pipe backward once more and exposing the air vent, rotate drawing board and extension board to vertical for show mathematics figure and explanation to the student.
The invention is further provided with: both sides all are provided with the magnetic stripe about the drawing board rear side, and each extension board is close to one side of drawing board rear side all is provided with and corresponds magnetic stripe matched with ironbar.
The invention is further provided with: the tangent mounting groove of axis of rotation with corresponding is all seted up on both sides about the drawing board, each extend the board rotate to with when the drawing board is parallel, the edge of each extension board all with the corresponding one side of drawing board is parallel and the contact.
The invention is further provided with: one side of each extension plate is connected with a toggle strip.
The invention is further provided with: the connecting rod is the telescopic link, be provided with the adjust knob who is used for adjusting its length on the connecting rod, the outer pole of connecting rod with the drawing board rotates to be connected, the interior pole of connecting rod with the base is connected, the outer wall of connecting rod outer pole with the pole rotates in the support to be connected.
Through adopting above-mentioned technical scheme, be convenient for adjust the height of drawing board according to the demand.
The invention is further provided with: both sides all are provided with and correspond rotation axis connection's rotation connecting block about the drawing board lower limb.
The invention is further provided with: the upper end of each first multi-edge cutting is connected with a pull ring.
The invention is further provided with: the cross sections of each first multi-edge limiting hole, each second multi-edge limiting hole, each first multi-edge cutting and each second multi-edge cutting are square.
Compared with the prior art, the invention has the following beneficial effects:
the drawing board can freely rotate to be horizontal or vertical, the horizontal state is used for drawing, the normal drawing habits of most people are met, the drawing tools can be stacked on the drawing board, one drawing tool is not required to be placed on the drawing board like drawing on a vertical blackboard, the drawing efficiency is improved, the drawing board rotates to be vertical after drawing is finished, the teaching of students is realized, and the drawing efficiency of mathematical figures is effectively improved;
secondly, the area of the drawing board is extended through the extension board when necessary, so that teachers can draw more mathematical figures, and the extension board is folded at the rear side of the drawing board when not unfolded, so that the placing space is saved;
its length is adjusted through the business turn over of adjusting the atmospheric pressure bracing piece gas, the rotation of the drawing board of being convenient for to can play limiting displacement to the drawing board after stopping gaseous business turn over, make it can not the free rotation.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a view of the present invention rotated to a horizontal deployed state;
FIG. 3 is a schematic view of the rear side of the present invention;
FIG. 4 is a partial cross-sectional view primarily illustrating the vent;
fig. 5 is a partial sectional view for showing a connection manner of the connection bar with the rotation shaft.
In the figure: 1. a base; 2. a connecting rod; 21. adjusting a knob; 3. drawing boards; 31. rotating the connecting block; 32. a magnetic strip; 33. mounting grooves; 4. an air pressure support rod; 41. a support sleeve; 42. supporting the inner rod; 43. a limiting ring; 44. a vent hole; 51. a hole plugging sleeve; 52. a spring; 6. a rotating shaft; 61. a polygonal jack; 7. an extension plate; 71. iron bars; 72. the bar is stirred; 8. a connecting strip; 81. a first multi-sided limiting hole; 82. a second multi-sided limiting hole; 91. a first multi-sided cutting; 92. a second multi-sided cutting; 93. and (4) a pull ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment, referring to fig. 1-5, a mathematics study of drawing and mathematical education are with changeable formula display device, including base 1, base 1 upwards is provided with a connecting rod 2, and the upper end of connecting rod 2 is rotated and is connected with a drawing board 3, and connecting rod 2 is the telescopic link, is provided with the adjust knob 21 that is used for adjusting its length on the connecting rod 2, and the outer pole and the drawing board 3 of connecting rod 2 rotate to be connected, and the interior pole and the base 1 of connecting rod 2 are connected.
An air pressure support rod 4 is rotatably connected between the upper end of one side of the drawing board 3 and the connecting rod 2, the connecting rod 2 and the air pressure support rod 4 are both positioned at the rear side of the drawing board 3, the air pressure support rod 4 comprises a support sleeve 41, a pole 42 in the support with support sleeve 41 inner wall sliding connection, support sleeve 41 keeps away from open-ended one end and passes through the upper end rotation of connecting seat and drawing board 3 one side and be connected, the pole 42 in the support is kept away from support sleeve 41's one end and is connected with the outer wall rotation of the 2 outer poles of connecting rod, support sleeve 41's the outside is provided with round spacing ring 43, sliding connection has a stifled hole sleeve 51 between spacing ring 43 and the connecting seat, be provided with a spring 52 between stifled hole sleeve 51 and the connecting seat, support sleeve 41 has seted up a air vent 44 between spacing ring 43 and the connecting seat, under the normality, air vent 44 is blocked up to spring 52 trend stifled hole sleeve.
The left side and the right side of the drawing board 3 are rotatably connected with a rotating shaft 6 which is vertically arranged, the outer wall of each rotating shaft 6 is connected with an extending board 7 which is tangent with the rotating shaft, each extending board 7 can be rotated to be attached to the rear side of the drawing board 3, the left side and the right side of the rear side of the drawing board 3 are respectively provided with a magnetic stripe 32, and one side, close to the rear side of the drawing board 3, of each extending board 7 is provided with an iron strip 71 which is matched with the corresponding magnetic stripe 32; the left side and the right side of the drawing board 3 are respectively provided with an installation groove 33 tangent to the corresponding rotating shaft 6, and when each extension board 7 rotates to be parallel to the drawing board 3, the edge of each extension board 7 is parallel to and contacts with the corresponding side of the drawing board 3; a toggle bar 72 is connected to the lower edge of each extension plate 7.
The left side and the right side of the lower edge of the drawing board 3 are respectively provided with a rotary connecting block 31 connected with the corresponding rotary shaft 6, the upper edge of the drawing board 3 is provided with a connecting strip 8, the upper end of each rotary shaft 6 is rotatably connected with the connecting strip 8, the left side and the right side of each rotary shaft 6 which downwards penetrates through the connecting strip 8 are respectively provided with a first multi-edge limiting hole 81 and a second multi-edge limiting hole 82 which are sequentially communicated, the cross section of each second multi-edge limiting hole 82 is larger than that of the corresponding first multi-edge limiting hole 81, the upper end of each rotary shaft 6 is downwards provided with a multi-edge jack 61 matched with the corresponding second multi-edge limiting hole 82, a second multi-edge cutting strip 92 is respectively and slidably connected in each second multi-edge limiting hole 82, each second multi-edge cutting strip 92 is respectively connected with a first multi-edge cutting strip 91 which is slidably connected with the corresponding first multi-edge limiting hole, the upper end of each first polygonal inserting strip 91 is connected with a pull ring 93; the cross-section of each first multi-sided limiting hole 81, each second multi-sided limiting hole 82, each first multi-sided cutting 91 and each second multi-sided cutting 92 is square.
The use method comprises the following steps: when a mathematical figure needs to be drawn in the teaching process, one hand pulls the hole blocking sleeve 51 backwards to compress the spring 52, the vent hole 44 is exposed, the drawing board 3 is then rotated to be horizontal, the air in the air pressure support rod 4 is exhausted from the vent hole 44, the air pressure support rod 4 is shortened, the vent hole 44 is blocked again after the hand is loosened, the air pressure support rod 4, the connecting rod 2 and the drawing board 3 form a triangular stable structure, the drawing board 3 is kept horizontal, when the drawing board 3 is not large enough, the first multi-edge insert 91 is pulled, the second multi-edge insert 92 is pulled to be out of the multi-edge insert 61, the extension board 7 is then rotated to be parallel to the drawing board 3, the second multi-edge insert 92 is inserted into the multi-edge insert 61 again, the extension board 7 is kept parallel to the drawing board 3 for drawing, after the drawing is finished, the hole blocking sleeve 51 is pulled backwards again to expose the vent hole 44, the drawing board 3 and the extension board 7 are, used for showing and explaining mathematical figures to students.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a mathematics drawing study and mathematics teaching are with changeable formula display device, includes base (1), its characterized in that: the base (1) is upwards provided with a connecting rod (2), the upper end of the connecting rod (2) is rotatably connected with a drawing board (3), the upper end of one side of the drawing board (3) is rotatably connected with an air pressure supporting rod (4) between the connecting rod (2), the connecting rod (2) and the air pressure supporting rod (4) are both positioned at the rear side of the drawing board (3), the air pressure supporting rod (4) comprises a supporting sleeve (41) and a supporting inner rod (42) which is slidably connected with the inner wall of the supporting sleeve (41), one end, away from an opening, of the supporting sleeve (41) is rotatably connected with the upper end of one side of the drawing board (3) through a connecting seat, one end, away from the supporting sleeve (41), of the supporting inner rod (42) is rotatably connected with the outer wall of the connecting rod (2), a limiting ring (43) is arranged on the outer side, a hole plugging sleeve (51) is connected between the limiting ring (43) and the connecting seat in a sliding manner, a spring (52) is arranged between the hole plugging sleeve (51) and the connecting seat, a vent hole (44) is formed in the supporting sleeve (41) between the limiting ring (43) and the connecting seat, and in a normal state, the vent hole (44) is plugged by the hole plugging sleeve (51) along the trend of the spring (52);
the left side and the right side of the drawing board (3) are rotatably connected with rotating shafts (6) which are vertically arranged, the outer wall of each rotating shaft (6) is connected with extension boards (7) which are tangent to the rotating shafts, each extension board (7) can be rotated to be attached to the rear side of the drawing board (3), the upper side of the drawing board (3) is provided with a connecting strip (8), the upper end of each rotating shaft (6) is rotatably connected with the connecting strip (8), the left side and the right side of each rotating shaft (6) which downwards penetrate through the connecting strip (8) are respectively provided with a first multi-edge limiting hole (81) and a second multi-edge limiting hole (82) which are sequentially communicated, the cross section of each second multi-edge limiting hole (82) is larger than that of the corresponding first multi-edge limiting hole (81), the upper end of each multi-edge rotating shaft (6) is downwards provided with a jack (61) which is matched with the corresponding second multi-edge limiting hole (82), every second multilateral cutting (92) all sliding connection has in spacing hole (82) of second multilateral, every second multilateral cutting (92) all be connected with correspond first multilateral cutting (91) that spacing hole (81) sliding connection of first multilateral just stretches out.
2. The changeable display device for mathematics drawing learning and mathematics teaching as claimed in claim 1, wherein: both sides all are provided with magnetic stripe (32) about drawing board (3) rear side, and each extension board (7) are close to one side of drawing board (3) rear side all is provided with and corresponds magnetic stripe (32) matched with ironbar (71).
3. The changeable display device for mathematics drawing learning and mathematics teaching as claimed in claim 1, wherein: the tangent mounting groove (33) of axis of rotation (6) is all seted up and corresponding to both sides about drawing board (3), each extend board (7) rotate to with when drawing board (3) are parallel, the edge of each extend board (7) all with the corresponding one side of drawing board (3) is parallel and the contact.
4. The changeable display device for mathematics drawing learning and mathematics teaching as claimed in claim 1, wherein: one side of each extension plate (7) is connected with a toggle bar (72).
5. The changeable display device for mathematics drawing learning and mathematics teaching as claimed in claim 1, wherein: connecting rod (2) are the telescopic link, be provided with adjust knob (21) that are used for adjusting its length on connecting rod (2), the outer pole of connecting rod (2) with drawing board (3) rotate to be connected, the interior pole of connecting rod (2) with base (1) is connected, the outer wall of the outer pole of connecting rod (2) with pole (42) rotate to be connected in the support.
6. The changeable display device for mathematics drawing learning and mathematics teaching as claimed in claim 1, wherein: the left side and the right side of the lower side of the drawing board (3) are provided with rotating connecting blocks (31) connected with corresponding rotating shafts (6).
7. The changeable display device for mathematics drawing learning and mathematics teaching as claimed in claim 1, wherein: the upper end of each first polygonal inserting strip (91) is connected with a pull ring (93).
8. The changeable display device for mathematics drawing learning and mathematics teaching as claimed in claim 1, wherein: the cross sections of each first multi-edge limiting hole (81), each second multi-edge limiting hole (82), each first multi-edge cutting (91) and each second multi-edge cutting (92) are square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110229986.XA CN112874210B (en) | 2021-03-02 | 2021-03-02 | Mathematics is drawn study and is used changeable formula display device with mathematical education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110229986.XA CN112874210B (en) | 2021-03-02 | 2021-03-02 | Mathematics is drawn study and is used changeable formula display device with mathematical education |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112874210A true CN112874210A (en) | 2021-06-01 |
| CN112874210B CN112874210B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110229986.XA Active CN112874210B (en) | 2021-03-02 | 2021-03-02 | Mathematics is drawn study and is used changeable formula display device with mathematical education |
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| CN (1) | CN112874210B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435008A (en) * | 2022-02-14 | 2022-05-06 | 山东第一医科大学(山东省医学科学院) | University's mathematics teaching is with multi-functional drawing board of just locate function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209869853U (en) * | 2019-03-26 | 2019-12-31 | 信阳农林学院 | Drawing board is used in teaching of foldable mathematics mr |
| CN210283706U (en) * | 2019-06-21 | 2020-04-10 | 哈尔滨剑桥学院 | Special drawing device of higher mathematics |
| CN211617221U (en) * | 2020-03-09 | 2020-10-02 | 迟世友 | Supplementary graphics primitive is used in ground survey and drawing |
| CN212260849U (en) * | 2020-05-08 | 2021-01-01 | 荆楚理工学院 | Drawing device for environmental design |
-
2021
- 2021-03-02 CN CN202110229986.XA patent/CN112874210B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209869853U (en) * | 2019-03-26 | 2019-12-31 | 信阳农林学院 | Drawing board is used in teaching of foldable mathematics mr |
| CN210283706U (en) * | 2019-06-21 | 2020-04-10 | 哈尔滨剑桥学院 | Special drawing device of higher mathematics |
| CN211617221U (en) * | 2020-03-09 | 2020-10-02 | 迟世友 | Supplementary graphics primitive is used in ground survey and drawing |
| CN212260849U (en) * | 2020-05-08 | 2021-01-01 | 荆楚理工学院 | Drawing device for environmental design |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435008A (en) * | 2022-02-14 | 2022-05-06 | 山东第一医科大学(山东省医学科学院) | University's mathematics teaching is with multi-functional drawing board of just locate function |
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| Publication number | Publication date |
|---|---|
| CN112874210B (en) | 2023-02-28 |
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