CN213973370U - Novel teaching blackboard - Google Patents
Novel teaching blackboard Download PDFInfo
- Publication number
- CN213973370U CN213973370U CN202022203643.XU CN202022203643U CN213973370U CN 213973370 U CN213973370 U CN 213973370U CN 202022203643 U CN202022203643 U CN 202022203643U CN 213973370 U CN213973370 U CN 213973370U
- Authority
- CN
- China
- Prior art keywords
- plate
- blackboard
- ruler
- sleeve
- geometric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 210000005056 cell body Anatomy 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 125000003003 spiro group Chemical group 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Drawing Aids And Blackboards (AREA)
Abstract
A novel teaching blackboard comprises a blackboard body, a connecting slide way, a connecting rod, a connecting sleeve, a geometric figure drawing mechanism and a four-line grid drawing board. The blackboard body on be provided with the connecting rod that removes about can, the upper and lower both ends of blackboard body all are provided with the connection slide, the both ends of connecting rod slide respectively and set up in connecting the slide, the slip cap is equipped with adapter sleeve on the body of rod of connecting rod, adapter sleeve's right side is provided with the fixed plate, be provided with the connecting axle on the fixed plate. When the geometric figure is drawn, the connecting sleeve is connected with the geometric figure drawing mechanism through the fixing plate and the connecting shaft. When drawing four-line grids, the connecting sleeve is connected with the four-line grid drawing plate through the fixing plate and the connecting shaft. A novel teaching blackboard, its reasonable in design, simple structure, the drawing of being convenient for can effectively reduce teacher's the degree of difficulty of drawing, improves work efficiency.
Description
Technical Field
The utility model relates to a mathematics teaching aid especially relates to a novel teaching blackboard.
Background
In the teaching process, especially in mathematical teaching and English teaching, a square is required to be used for drawing geometric figures or four-line grids. The ruler in the prior art is various and comprises a ruler, a protractor, a set square and the like, the ruler is very troublesome to use, great inconvenience is brought to teaching work of teachers, working strength is increased, and working efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide a novel teaching blackboard, its reasonable in design, simple structure is convenient for draw, can effectively reduce teacher's the degree of difficulty of drawing, improves work efficiency.
A novel teaching blackboard, draw mechanism and four-wire check drawing board including blackboard main part, connection slide, connecting rod, adapter sleeve, geometry. The blackboard body on be provided with the connecting rod that removes about can, the upper and lower both ends of blackboard body all are provided with the connection slide, the both ends of connecting rod slide respectively and set up in connecting the slide, the slip cap is equipped with adapter sleeve on the body of rod of connecting rod, adapter sleeve's right side is provided with the fixed plate, be provided with the connecting axle on the fixed plate.
When drawing geometric figure, adapter sleeve pass through fixed plate and connecting axle and connect geometric figure drawing mechanism, geometric figure drawing mechanism is including ruler board and rotation ruler, the left end of ruler board is inserted through connect the through-hole and is located on the connecting axle, be provided with penetrating connection spout on the plate body of ruler board, it is provided with the screw thread axle to slide in the connection spout, the screw thread axle runs through in the ruler board through connecting the spout, and the bottom of screw thread axle is provided with the baffle, and its top is rotated and is connected with the rotation ruler, the left end of rotating the ruler is inserted through connect the through-hole and is located the screw thread epaxially, the top spiro union of screw thread axle has fastening nut, the plate body of rotation ruler on be provided with penetrating drawing cell body.
When drawing four line check, adapter sleeve connect four line check drawing boards through fixed plate and connecting axle, the left end of four line check drawing boards is provided with the connecting plate, four line check drawing boards insert through the connect the via hole on connecting plate and the connecting plate and locate on the connecting axle, four parallel of each other, and penetrating marking off cell body have set gradually from top to bottom on the plate body of four line check drawing boards.
Furthermore, the top of the rotary ruler is provided with a angle measuring plate, and a transparent arc drawing groove body is arranged on the plate body of the angle measuring plate.
Furthermore, a fastening bolt is screwed on the connecting sleeve.
Further, the lower extreme of blackboard main part be provided with the storing box, the storing can be stored in the storing box and be drawn mechanism and four-wire check drawing board with geometric figure.
A novel teaching blackboard, its reasonable in design, simple structure, the drawing of being convenient for can effectively reduce teacher's the degree of difficulty of drawing, improves work efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a novel teaching blackboard for drawing geometric figure.
Figure 2 is a structural schematic diagram of a novel teaching blackboard when drawing four-line grid.
Figure 3 is a connection schematic diagram of a teaching board ruler board and a rotary ruler convenient for drawing geometric figures.
1-blackboard main body 2-connecting rod 3-connecting sleeve 4-connecting slideway 5-straight ruler plate 6-angle plate 7-arc drawing groove body 8-rotating straight ruler 9-drawing groove body 10-connecting shaft 11-connecting slideway 12-fixing plate 13-baffle plate 14-threaded shaft 15-four-line grid drawing plate 15-1-scribing groove body 16-storage box.
Detailed Description
Referring now to the drawings in the specification, in conjunction with specific embodiments, there is illustrated the following: a novel teaching blackboard, draw mechanism and four-wire check drawing board 15 including blackboard main part 1, connection slide 4, connecting rod 2, adapter sleeve 3, geometry. Blackboard main part 1 on be provided with connecting rod 2 that removes about can, blackboard main part 1 upper and lower both ends all are provided with connects slide 4, the both ends of connecting rod 2 slide respectively and set up in connecting slide 4, the slip cap is equipped with adapter sleeve 3 on the body of rod of connecting rod 2, adapter sleeve 3's right side is provided with fixed plate 12, be provided with connecting axle 10 on the fixed plate 12.
When drawing geometric figure, adapter sleeve 3 connect geometric figure drawing mechanism through fixed plate 12 and connecting axle 10, geometric figure drawing mechanism is including ruler board 5 and rotation ruler 8, the left end of ruler board 5 is inserted through connect the through-hole and is located on connecting axle 10, be provided with penetrating connection spout 11 on ruler board 5's the plate body, it is provided with threaded shaft 14 to slide in the connection spout 11, threaded shaft 14 runs through in ruler board 5 through connecting spout 11, and threaded shaft 14's bottom is provided with baffle 13, and its top is rotated and is connected with rotation ruler 8, the left end of rotating ruler 8 is inserted through connect the through-hole and is located on threaded shaft 14, threaded shaft 14's top spiro union has fastening nut, rotation ruler 8's the plate body on be provided with penetrating drawing cell body 9.
When drawing circles, the chalk is inserted into the drawing groove body 9 on the rotary ruler 8, the rotary ruler 8 is rotated by taking the threaded shaft 14 as the circle center, then a circular figure can be drawn, and the diameter of the drawn circle is changed by adjusting the position of the chalk in the drawing groove 9. When drawing triangle-shaped, rotatory ruler 8 that rotates mutually cooperates with ruler board 5, can draw the triangle-shaped of different acute angles, angulometer board 6 be semicircular structure, and the cambered surface up, be provided with arc drawing groove 7 on angulometer board 6, the cambered surface of arc drawing groove 7 corresponding with angulometer board 6's cambered surface, insert the chalk arc and can tell the groove, the arc of postponing can be drawn semicircular, when not needing to draw the figure, pushes away each part to one side of black this main part through sliding connection pole, the mr of being convenient for writes in the blackboard main part.
When drawing four-line check, adapter sleeve 3 connect four-line check drawing board 15 through fixed plate 12 and connecting axle 10, the left end of four-line check drawing board 15 is provided with the connecting plate, four-line check drawing board 15 inserts through connecting plate and the connecting hole on the connecting plate and locates on connecting axle 10, four parallel, and penetrating marking off cell body 15-1 of being parallel to each other has set gradually from top to bottom on the plate body of four-line check drawing board 15. And inserting the chalk into the scribing groove body 15-1 to draw four-line lattices for writing English letters.
Furthermore, the top of the rotary ruler 8 is provided with a angle measuring plate 6, and a transparent arc drawing groove body 7 is arranged on the plate body of the angle measuring plate 6. The chalk is inserted into the arc drawing groove body 7, and the semi-circle can be drawn by the delayed arc surface.
Furthermore, a fastening bolt is screwed on the connecting sleeve 3.
Further, the lower extreme of blackboard main part 1 be provided with storing box 16, can store in the storing box 16 and draw mechanism and four-line grid drawing board 15 with the geometric figure.
A novel teaching blackboard, its reasonable in design, simple structure, the drawing of being convenient for can effectively reduce teacher's the degree of difficulty of drawing, improves work efficiency.
Claims (6)
1. The utility model provides a novel teaching blackboard, draws mechanism and four-wire grid drawing board (15) including blackboard main part (1), connection slide (4), connecting rod (2), adapter sleeve (3), geometry, its characterized in that: the blackboard is characterized in that a connecting rod (2) capable of moving left and right is arranged on the blackboard main body (1), connecting slideways (4) are arranged at the upper end and the lower end of the blackboard main body (1), two ends of the connecting rod (2) are respectively arranged in the connecting slideways (4) in a sliding manner, a sleeve (3) is sleeved on a rod body of the connecting rod (2) in a sliding manner, a fixing plate (12) is arranged on the right side of the sleeve (3), and a connecting shaft (10) is arranged on the fixing plate (12);
the geometric figure drawing mechanism comprises a ruler plate (5) and a rotary ruler (8), the left end of the ruler plate (5) can be inserted on a connecting shaft (10) through a connecting through hole, a through connecting chute (11) is arranged on a plate body of the ruler plate (5), a threaded shaft (14) is arranged in the connecting chute (11) in a sliding mode, the threaded shaft (14) penetrates through the ruler plate (5) through the connecting chute (11), a baffle (13) is arranged at the bottom end of the threaded shaft (14), the top end of the threaded shaft is rotatably connected with the rotary ruler (8), the left end of the rotary ruler (8) is inserted on the threaded shaft (14) through the connecting through hole, a fastening nut is screwed at the top end of the threaded shaft (14), and a through drawing groove body (9) is arranged on the plate body of the rotary ruler (8);
the left end of four-wire check drawing board (15) is provided with the connecting plate, four-wire check drawing board (15) can insert through connecting plate and the connecting plate on connect the via hole and establish on connecting axle (10), four parallel, and penetrating marking off cell body (15-1) have set gradually on the plate body of four-wire check drawing board (15) from top to bottom.
2. The novel teaching blackboard of claim 1, wherein: when the geometric figure is drawn, the connecting sleeve (3) is connected with the geometric figure drawing mechanism through the fixing plate (12) and the connecting shaft (10).
3. The novel teaching blackboard of claim 1, wherein: when the four-line grid is drawn, the connecting sleeve (3) is connected with the four-line grid drawing plate (15) through the fixing plate (12) and the connecting shaft (10).
4. The novel teaching blackboard of claim 1, wherein: the top of rotation ruler (8) be provided with angle gauge board (6), be provided with penetrating arc drawing cell body (7) on the plate body of angle gauge board (6).
5. The novel teaching blackboard of claim 1, wherein: and a fastening bolt is screwed on the connecting sleeve (3).
6. The novel teaching blackboard of claim 1, wherein: the blackboard comprises a blackboard main body (1), wherein a storage box (16) is arranged at the lower end of the blackboard main body (1), and a geometric figure drawing mechanism and a four-line grid drawing board (15) can be stored in the storage box (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022203643.XU CN213973370U (en) | 2020-09-30 | 2020-09-30 | Novel teaching blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022203643.XU CN213973370U (en) | 2020-09-30 | 2020-09-30 | Novel teaching blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213973370U true CN213973370U (en) | 2021-08-17 |
Family
ID=77255403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022203643.XU Expired - Fee Related CN213973370U (en) | 2020-09-30 | 2020-09-30 | Novel teaching blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213973370U (en) |
-
2020
- 2020-09-30 CN CN202022203643.XU patent/CN213973370U/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: 20210817 |