CN216147483U - Curve drawing board that colleges and universities mathematics was used - Google Patents
Curve drawing board that colleges and universities mathematics was used Download PDFInfo
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- CN216147483U CN216147483U CN202121369310.2U CN202121369310U CN216147483U CN 216147483 U CN216147483 U CN 216147483U CN 202121369310 U CN202121369310 U CN 202121369310U CN 216147483 U CN216147483 U CN 216147483U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000002146 bilateral effect Effects 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007620 mathematical function Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a curve drawing board for mathematics in colleges and universities, which comprises a drawing board, a first drawing board and a second drawing board, wherein the drawing board is provided with a first drawing board and a second drawing board; the middle part of the drawing board is provided with a rotating shaft, and supporting legs are symmetrically arranged at two sides of the rotating shaft; the drawing board bilateral symmetry is provided with the removal rail, is located and removes the rail middle part and is provided with the connecting axle, and the connecting axle all is connected with the xarm, is located the xarm middle part and is provided with the transmission shaft, and the transmission shaft inboard is provided with the rotary rod, is located the switching shaft that connecting axle drive meshing is connected, and switching shaft and transmission shaft meshing, in the utility model, through being located remove the rail middle part and be provided with the connecting axle, and the connecting axle all is connected with the xarm, is located the xarm middle part is provided with the transmission shaft, and the transmission shaft inboard is provided with the rotary rod for when this device was drawn, remove the xarm and drive the rotary rod and carry out the curve and draw, be applicable to various occasions, it is high-efficient convenient, be favorable to improving teaching efficiency.
Description
Technical Field
The utility model relates to the technical field of educational appliances, in particular to a curve drawing board for mathematics in colleges and universities.
Background
Mathematics plays an irreplaceable role in human historical development and social life, and is also an essential basic tool for learning and researching modern science and technology. Different curves need to be drawn in the mathematical function learning research process; the teaching aid is a general name of various appliances used for enabling students to visually and vividly understand teaching contents and appliances used by teachers during teaching, and is called teaching aid for short. The teaching aid can improve the learning interest of students, enrich perceptual knowledge, help to form clear concepts, and develop the observation ability and thinking ability of students, and is generally classified into 3 types of common teaching aids, special teaching aids and infant teaching aids.
Like publication number CN208676686U, the name is "curve drawing board for college mathematics", the utility model patent that the authorization announcement day is 20190402, it includes two base pads, two the regulation pole, two are all installed on the top of base pad the installation pole, two all install on the top of regulation pole the mounting hole has all been seted up on the installation pole, two the inside of mounting hole is all inserted and is equipped with the rotary rod, two the drawing board is installed jointly to the one end that the rotary rod is relative, two impartial distance has been seted up a plurality of fixed orificess, two on the lateral wall of rotary rod all insert on the lateral wall of the opposite one side of installation pole and be equipped with fixing pin, and fixing pin runs through the lateral wall of installation pole and extends to in the mounting hole, fixing pin mutually supports with the size of fixed orifices. Simple structure facilitates the use, not only can carry out convenient adjustment to the angle of drawing board, makes things convenient for the student in each position to watch, and the height of adjustable drawing board is applicable to various occasions simultaneously, and is high-efficient convenient, is favorable to improving teaching efficiency.
The shortcomings of the prior art including the patents are that because the difficulty of curve drawing is high, the existing curve drawing is time-consuming, the curve drawing is not beneficial to drawing in a classroom, a part of students often cannot see the contents on the drawing board well, the teaching efficiency is influenced, and the improvement needs to be made.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a curve drawing board for mathematics in colleges and universities, which is characterized in that a connecting shaft is arranged in the middle of a movable rail, the connecting shafts are connected with cross arms, a transmission shaft is arranged in the middle of each cross arm, and a rotary rod is arranged on the inner side of each transmission shaft, so that when the curve drawing device is used for drawing, the cross arms are moved to drive the rotary rods to carry out curve drawing.
In order to achieve the purpose, the utility model adopts the following technical scheme: a curve drawing board for mathematics in colleges and universities comprises a drawing board; the middle part of the drawing board is provided with a rotating shaft, and supporting legs are symmetrically arranged on two sides of the rotating shaft; moving rails are symmetrically arranged on two sides of the drawing board, connecting shafts are arranged in the middle of the moving rails, the connecting shafts are connected with transverse arms, transmission shafts are arranged in the middle of the transverse arms, rotating rods are arranged on the inner sides of the transmission shafts, switching shafts which are connected with the connecting shafts in a driving and meshing mode are arranged on the inner sides of the transmission shafts, and the switching shafts are meshed with the transmission shafts;
as a further description of the above technical solution:
the middle part array of the rotating rod is provided with jacks, and the diameter of a jack slot is the same as that of the chalk outer ring.
As a further description of the above technical solution:
supporting plates are symmetrically arranged on two sides of the switching shaft and fixed on the cross arm.
As a further description of the above technical solution:
the middle part of the movable rail is provided with a rack which is meshed with a gear block arranged at one end of the connecting shaft.
As a further description of the above technical solution:
a guide groove is formed in one side of the movable rail, and the connecting shaft is arranged in the guide groove.
As a further description of the above technical solution:
an inner cavity groove is formed in the middle of the supporting leg, and a limiting rod penetrates through the middle of the inner cavity groove; the middle part of the limiting rod is sleeved with a supporting spring, and the supporting spring is arranged in the inner cavity groove.
As a further description of the above technical solution:
the drawing board bilateral symmetry is provided with the arc frame, is located arc frame middle part array has seted up spacing hole, and spacing hole with the gag lever post block.
As a further description of the above technical solution:
a pull rod is arranged on one side of the limiting rod and is an arc-shaped handle; the supporting leg bottom is provided with the supporting seat.
The utility model provides a curve drawing board for mathematics in colleges and universities, which has the following beneficial effects:
1. according to the device, the connecting shafts are arranged in the middle of the movable rail, the connecting shafts are connected with the transverse arms, the transmission shafts are arranged in the middle of the transverse arms, and the rotary rods are arranged on the inner sides of the transmission shafts, so that when the device is used for drawing, the movable transverse arms drive the rotary rods to perform curve drawing.
2. In the utility model, the chalk arranged in the jack is used for drawing in the drawing board, and different curves are drawn according to different hole sites and different distances, so that the practicability of the device is improved and the interest of learning is improved.
3. According to the utility model, when the angle of the drawing board needs to be adjusted, the two limiting rods are pulled out, the drawing board is rotated, a proper angle is selected, the limiting rods are inserted again, the limiting rods enter the arc frames symmetrically arranged on the two sides of the drawing board, and the limiting rods are arranged in the limiting holes formed in the middle of the arc frames in an array mode.
Drawings
FIG. 1 is a schematic structural diagram of a curve drawing board for mathematics in colleges and universities according to the present invention;
FIG. 2 is an enlarged view taken at a in FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of FIG. 1 taken at b in the present invention;
FIG. 4 is an enlarged view of the present invention taken at c in FIG. 1
Illustration of the drawings:
1. drawing boards; 11. a moving rail; 12. a rack; 13. a guide groove; 14. a gear block; 15. a connecting shaft; 16. a transfer shaft; 17. a support plate; 18. a cross arm; 19. a drive shaft; 110. rotating the rod; 111. a jack; 2. a rotating shaft; 3. supporting legs; 31. a supporting seat; 32. an inner cavity groove; 33. a limiting rod; 34. a support spring; 35. a pull rod; 36. an arc-shaped frame; 37. and a limiting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a curve drawing board for mathematics in colleges and universities includes a drawing board 1; the middle part of the drawing board 1 is provided with a rotating shaft 2, and supporting legs 3 are symmetrically arranged at two sides of the rotating shaft 2; the two sides of the drawing board 1 are symmetrically provided with moving rails 11, a connecting shaft 15 is arranged in the middle of the moving rails 11, the connecting shafts 15 are connected with cross arms 18, a transmission shaft 19 is arranged in the middle of the cross arms 18, a rotating rod 110 is arranged on the inner side of the transmission shaft 19, a switching shaft 16 is arranged on the connecting shaft 15 and is in driving engagement connection with the transmission shaft 19, and the switching shaft 16 is engaged with the transmission shaft 19;
the connecting shafts 15 are arranged in the middle of the moving rail 11, the connecting shafts 15 are connected with the cross arms 18, the transmission shafts 19 are arranged in the middle of the cross arms 18, and the rotating rods 110 are arranged on the inner sides of the transmission shafts 19, so that when the device is used for drawing, the moving cross arms 18 drive the rotating rods 11 to draw curves, the device is suitable for various occasions, is efficient and convenient, and is beneficial to improving teaching efficiency;
the middle part of the rotating rod 110 is provided with a jack 111 in an array mode, and the diameter of a hole groove of the jack 111 is the same as that of the outer ring of the chalk;
the chalk arranged in the insertion hole 111 is used for drawing in the drawing board 1, and different curves are drawn according to different hole positions and different distances, so that the practicability of the device is improved, and the interest of learning is improved;
a rack 12 is arranged in the middle of the movable rail 11, and the rack 12 is meshed with a gear block 14 arranged at one end of a connecting shaft 15;
one side of the movable rail 11 is provided with a guide groove 13, and a connecting shaft 15 is arranged in the guide groove 13;
an inner cavity groove 32 is formed in the middle of the supporting leg 3, and a limiting rod 33 penetrates through the middle of the inner cavity groove 32; a support spring 34 is sleeved in the middle of the limiting rod 33, and the support spring 34 is arranged in the inner cavity groove 32;
arc-shaped frames 36 are symmetrically arranged on two sides of the drawing board 1, limiting holes 37 are formed in the middle of the arc-shaped frames 36 in an array mode, and the limiting holes 37 are clamped with the limiting rods 33;
a pull rod 35 is arranged on one side of the limiting rod 33, and the pull rod 35 is an arc-shaped handle; the bottom end of the supporting leg 3 is provided with a supporting seat 31;
through when the angle of drawing board is adjusted to needs, extract two gag lever posts 33, rotate drawing board 1, select suitable angle, insert gag lever post 33 again, gag lever post 33 enters into 1 bilateral symmetry of drawing board and is provided with arc frame 36, lies in arc frame 36 middle part array and has seted up spacing hole 37, simple structure facilitates the use, not only can carry out convenient adjustment to the angle of drawing board, makes things convenient for the student in each position to watch.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (8)
1. A curvilinear drawing board for mathematics in colleges and universities, characterized by comprising a drawing board (1);
a rotating shaft (2) is arranged in the middle of the drawing board (1), and supporting legs (3) are symmetrically arranged on two sides of the rotating shaft (2);
the drawing board (1) bilateral symmetry is provided with and removes rail (11), is located remove rail (11) middle part and be provided with connecting axle (15), connecting axle (15) all are connected with xarm (18), are located xarm (18) middle part is provided with transmission shaft (19), and transmission shaft (19) inboard is provided with rotary rod (110), is located connecting axle (15) drive switching axle (16) that mesh is connected, and switching axle (16) with transmission shaft (19) meshing.
2. A curve drawing board for college mathematics as claimed in claim 1, wherein the central array of the rotating rod (110) is provided with the insertion holes (111), and the hole groove diameter of the insertion holes (111) is the same as the chalk outer ring diameter.
3. A curve drawing board for college mathematics according to claim 1, characterized in that the adapter shaft (16) is symmetrically provided with support plates (17) on both sides, and the support plates (17) are fixed on the cross arm (18).
4. A curve drawing board for college mathematics according to claim 1, characterized in that a rack (12) is provided in the middle of the moving rail (11), and the rack (12) is engaged with a gear block (14) provided at one end of the connecting shaft (15).
5. A curve drawing board for college mathematics according to claim 1, characterized in that a guide groove (13) is provided on one side of the moving rail (11), and the connecting shaft (15) is provided in the guide groove (13).
6. The curve drawing board for mathematics in colleges and universities according to claim 1, characterized in that an inner cavity groove (32) is formed in the middle of the supporting leg (3), and a limiting rod (33) penetrates through the middle of the inner cavity groove (32); the middle part of the limiting rod (33) is sleeved with a supporting spring (34), and the supporting spring (34) is arranged in the inner cavity groove (32).
7. The curve drawing board for mathematics in colleges and universities according to claim 6, characterized in that the two sides of the drawing board (1) are symmetrically provided with arc-shaped frames (36), the middle part of the arc-shaped frames (36) is provided with limiting holes (37) in an array manner, and the limiting holes (37) are clamped with the limiting rods (33).
8. The curve drawing board for mathematics in colleges and universities according to claim 6, characterized in that a pull rod (35) is arranged on one side of the limiting rod (33), and the pull rod (35) is an arc-shaped handle; the bottom end of the supporting leg (3) is provided with a supporting seat (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121369310.2U CN216147483U (en) | 2021-06-21 | 2021-06-21 | Curve drawing board that colleges and universities mathematics was used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121369310.2U CN216147483U (en) | 2021-06-21 | 2021-06-21 | Curve drawing board that colleges and universities mathematics was used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216147483U true CN216147483U (en) | 2022-04-01 |
Family
ID=80835617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121369310.2U Expired - Fee Related CN216147483U (en) | 2021-06-21 | 2021-06-21 | Curve drawing board that colleges and universities mathematics was used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216147483U (en) |
-
2021
- 2021-06-21 CN CN202121369310.2U patent/CN216147483U/en not_active Expired - Fee Related
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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: 20220401 |