CN205498432U - Teaching tool - Google Patents
Teaching tool Download PDFInfo
- Publication number
- CN205498432U CN205498432U CN201620118344.7U CN201620118344U CN205498432U CN 205498432 U CN205498432 U CN 205498432U CN 201620118344 U CN201620118344 U CN 201620118344U CN 205498432 U CN205498432 U CN 205498432U
- Authority
- CN
- China
- Prior art keywords
- ruler
- rotating shaft
- hole
- horizontal
- blackboard
- 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
Abstract
The utility model relates to a teaching tool specifically is a teaching tool who draws geometric figure on the blackboard. It includes blackboard 1, vertical chute 3, 5 connections on the horizontal ruler, horizontal ruler 5, horizontal spout 6, horizontal sliding block 7 are connected through pivot 8 and ruler 9, and ruler 9 is connected through pivot 10 and ruler 11, 11 centers on the ruler are equipped with bar sliding tray 12, and 11 front ends on the ruler are equipped with circular ring 13, the last fixed disc 14 that is carved with the angle of horizontal sliding block 7, hole 16 is gone up to spout 3, and upright slide block 4 goes up porose 17. The utility model discloses can be at the bigger regional nimble corresponding length of drawing, the mathematics teaching aid of angle figure.
Description
Technical field
This utility model relates to a kind of teaching aid, is specially one and draws various geometric teaching use on blackboard
Tool.
Background technology
Teacher, when imparting knowledge to students, needs the different graphic that teacher according to circumstances draws, repeatedly take ruler, set square and
Compasses, have inconvenience more.And teaching process needs the diverse location on blackboard draw different size of different graphic.In addition
In corresponding course, need for angle, length, there is a certain degree of quantitative analysis, such as the figure ratio drawn according to angle
The size of relatively length；According to the figure of the drafting of length, need to compare the situation of change etc. of angle.This is accomplished by application teaching aid can
With corresponding regular length, the figure of angle flexibly in bigger region.
Summary of the invention
For problem above, this utility model provides a kind of can drafting flexibly in bigger region and grows accordingly
Degree, the mathematics teaching aid of angle graphics.
As shown in Figure 1, including blackboard 1, blackboard 1 both sides are provided with side frame 2 to a kind of teaching aid, and side frame 2 is provided with
Vertical chute 3, is provided with upright slide block 4 in vertical chute 3, upright slide block 4 is connected with horizontal ruler 5；Laterally offer on ruler 5
Having horizontal concrete chute 6, be provided with cross sliding clock 7 in horizontal concrete chute 6, cross sliding clock 7 is connected by the first rotating shaft 8 and the first ruler 9
Connecing, the first ruler 9 is connected the first ruler 9 with the second ruler 11 by the second rotating shaft 10 and the second edge, ruler 11 both sides is carved
Being decorated with graduation mark, the second ruler 11 center is provided with bar shaped sliding tray 12, and the second rotating shaft 10 can be moved along bar shaped sliding tray 12, ruler
11 front ends are provided with the ring 13 that can be inserted into chalk；Fixing on cross sliding clock 7 carve angled disk 14, the first ruler 9 and the
One rotating shaft 8 is connected on one end the fixing pointer 15 with the first ruler 9 conllinear；It is uniformly provided with multiple hole on vertical chute 3 centrage
Hole 16, above the vertical chute 3 of two, left and right, first hole height differs half hole spacing, offers in the heart in upright slide block 4
The hole 17 identical with hole 16 shape, the vertically height of horizontal ruler 5 is 2 times of hole spacing；Second rotating shaft 10 as shown in Figure 3
Bottom is fixed on the first ruler 9, and rotating shaft is fixed prodger 18, as shown in Figure 4 prodger 18 and the second rotating shaft 10 center
Axle conllinear, prodger 18 may be inserted in the groove in bar shaped sliding tray 12.
Plotting unit can move up and down along vertical chute 3, can move left and right along horizontal ruler 5, can be by first
Rotating shaft 8 and the second rotating shaft 10 of sliding adjust angle, can meet the diverse location at blackboard and draw according to actual requirement.The
Two rotating shafts 10 can be moved along bar shaped sliding tray 12, and ruler 11 front end is provided with the ring 13 that can be inserted into chalk, and this design is not only
Application ruler 11 draws respective graphical, as drawn the circle etc. of different radii more neatly.
When choosing the position of horizontal ruler 5, after hole 16 overlaps with hole 17, insert club identical with void shape,
Can be with fixed lateral ruler 5.The cross-over design of two round hole difference half pitch can ensure that horizontal ruler 5 can be fixed on more
On many height and positions, the effect that vertically height is 2 times of hole spacing of horizontal ruler 5 is when lower edges after fixing ruler 5
Corresponding corresponding scale.With the second rotating shaft 10 central shaft conllinear, prodger 18 ensure that ruler 11 can slide and rotate.
Disk 14 and pointer 15 can be drawn and measure respective angles.
Accompanying drawing explanation
Fig. 1 embodiment 1 is the structural representation of mathematics teaching aid.
Fig. 2 embodiment 1 boost line AA signal of position in mathematics teaching aid when the first ruler 9 and the second ruler 11 conllinear
Figure.
Fig. 3 embodiment 1 is along the sectional drawing of AA line.
Fig. 4 embodiment 1 second rotating shaft 10 top view.
Fig. 5 embodiment 2 second rotating shaft 10 and the second ruler 11 enlarged drawing.
Fig. 6 embodiment 2 is along the sectional drawing of AA line.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, including blackboard 1, blackboard 1 both sides are provided with side frame 2 to a kind of teaching aid, and side frame 2 is provided with
Vertical chute 3, is provided with upright slide block 4 in vertical chute 3, upright slide block 4 is connected with horizontal ruler 5；Laterally offer on ruler 5
Having horizontal concrete chute 6, be provided with cross sliding clock 7 in horizontal concrete chute 6, cross sliding clock 7 is connected by the first rotating shaft 8 and the first ruler 9
Connecing, the first ruler 9 is connected the first ruler 9 with the second ruler 11 by the second rotating shaft 10 and the second edge, ruler 11 both sides is carved
Being decorated with graduation mark, the second ruler 11 center is provided with bar shaped sliding tray 12, and the second rotating shaft 10 can be moved along bar shaped sliding tray 12, ruler
11 front ends are provided with the ring 13 that can be inserted into chalk；Fixing on cross sliding clock 7 carve angled disk 14, the first ruler 9 and the
One rotating shaft 8 is connected on one end the fixing pointer 15 with the first ruler 9 conllinear；It is uniformly provided with multiple hole on vertical chute 3 centrage
Hole 16, above the vertical chute 3 of two, left and right, first hole height differs half hole spacing, offers in the heart in upright slide block 4
The hole 17 identical with hole 16 shape, the vertically height of horizontal ruler 5 is 2 times of hole spacing；Second rotating shaft 10 as shown in Figure 3
Bottom is fixed on the first ruler 9, and rotating shaft is fixed prodger 18, as shown in Figure 4 prodger 18 and the second rotating shaft 10 center
Axle conllinear, prodger 18 may be inserted in the groove of bar shaped sliding tray 12.
Embodiment 2
Substantially the same manner as Example 1, difference is, as it can be seen in figures 5 and 6, the second ruler 11 is provided with groove 19, recessed
Groove 19 is mutually twisted with the burr 20 on axle cap 21, inserts axle cap 21 to the second rotating shaft 10 further groove 19 and burr 20 is mutually stung
Closing, axle cap 21 bottom surface contacts with blackboard；Axle cap 21 upper end is provided with turning handle 22, and turning handle 22 direction is vertical with the direction of burr 20 or flat
OK.
When drawing the respective graphical such as specified circumference when needs, the second rotating shaft 10 of sliding can adjust to half required path length
Degree, the second rotating shaft 10 is put in circle centre position, inserts axle cap 21, and bottom surface is blackboard home position, is engaged with burr 20 by groove 19,
Hands can drive the second ruler 11 to draw circle by rotating turning handle 22.Be designed with perpendicular or parallel with the direction of burr 20 of turning handle 22 direction
It is beneficial to quickly determine the direction that axle cap 21 inserts so that groove 19 and burr 20 snap engagement.
Embodiment 3
Substantially the same manner as Example 1, difference is square at hole 16 and hole 17, and club identical with void shape is inserted
A length of 2-5cm after entering hole 16 and hole 17, outside blackboard.
Squared design is more beneficial for the fixing of horizontal ruler 5, length 2-5cm outside club blackboard after insertion, this
The purpose of design is on the one hand to be conducive to the plug of club, on the other hand can hold up when not using ruler 9 and ruler 11
Ruler 9 and ruler 11, play fixation for ruler.
Claims (2)
1. a teaching aid, it includes that blackboard (1), blackboard (1) both sides are provided with side frame (2), on two side frames (2)
Being provided with vertical chute (3), be provided with upright slide block (4) in vertical chute (3), upright slide block (4) is connected with horizontal ruler (5)；
Laterally offering horizontal concrete chute (6) on ruler (5), be provided with cross sliding clock (7) in horizontal concrete chute (6), cross sliding clock (7) passes through
First rotating shaft (8) is connected with the first ruler (9), and the first ruler (9) is connected with the second ruler (11) by the second rotating shaft (10)；The
Graduation mark has been portrayed at one ruler (9) and the second ruler (11) edge, both sides, and the second ruler (11) center is provided with bar shaped sliding tray
(12), the second rotating shaft (10) can be mobile along bar shaped sliding tray (12), and ruler (11) front end is provided with the ring that can be inserted into chalk
(13)；Cross sliding clock (7) is upper fixing carves angled disk (14), and the first ruler (9) is connected solid on one end with the first rotating shaft (8)
The fixed pointer (15) with the first ruler (9) conllinear；Multiple hole (16), left and right two it is uniformly provided with on vertical chute (3) centrage
First the hole height in individual vertical chute (3) top differs half hole spacing, and upright slide block is offered and hole in (4) in the heart
(16) hole (17) that shape is identical, the vertically height of horizontal ruler (5) is 2 times of hole spacing；Second rotating shaft (10) bottom is fixing
On the first ruler (9), the second rotating shaft being fixed prodger (18), prodger (18) is common with the second rotating shaft (10) central shaft
Line, prodger (18) may be inserted in the groove during bar shaped sliding tray (12) moves.
2. according to a kind of teaching aid described in claim 1, it is characterised in that the second ruler (11) is provided with groove (19),
Groove (19) is mutually twisted with the burr (20) on axle cap (21), insert axle cap (21) to the second rotating shaft (10) further groove (19) and
Burr (20) is mutually twisted, and axle cap (21) bottom surface contacts with blackboard；Axle cap (21) upper end is provided with turning handle (22), turning handle (22) direction
Perpendicular or parallel with the direction of burr (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620118344.7U CN205498432U (en) | 2016-02-13 | 2016-02-13 | Teaching tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620118344.7U CN205498432U (en) | 2016-02-13 | 2016-02-13 | Teaching tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205498432U true CN205498432U (en) | 2016-08-24 |
Family
ID=56724661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620118344.7U Expired - Fee Related CN205498432U (en) | 2016-02-13 | 2016-02-13 | Teaching tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205498432U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422776A (en) * | 2018-05-09 | 2018-08-21 | 江苏理工学院 | A kind of wide-angle assisted mapping tool |
| CN109367293A (en) * | 2018-10-23 | 2019-02-22 | 张艺璇 | A kind of modified compasses |
| CN112874213A (en) * | 2021-02-09 | 2021-06-01 | 南京信息职业技术学院 | Portable plane drawing tool of dismouting |
-
2016
- 2016-02-13 CN CN201620118344.7U patent/CN205498432U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422776A (en) * | 2018-05-09 | 2018-08-21 | 江苏理工学院 | A kind of wide-angle assisted mapping tool |
| CN109367293A (en) * | 2018-10-23 | 2019-02-22 | 张艺璇 | A kind of modified compasses |
| CN112874213A (en) * | 2021-02-09 | 2021-06-01 | 南京信息职业技术学院 | Portable plane drawing tool of dismouting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20170213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |