CN203142173U - Multi-functional mathematical ruler for teaching - Google Patents
Multi-functional mathematical ruler for teaching Download PDFInfo
- Publication number
- CN203142173U CN203142173U CN 201220755830 CN201220755830U CN203142173U CN 203142173 U CN203142173 U CN 203142173U CN 201220755830 CN201220755830 CN 201220755830 CN 201220755830 U CN201220755830 U CN 201220755830U CN 203142173 U CN203142173 U CN 203142173U
- Authority
- CN
- China
- Prior art keywords
- ruler
- chi
- teaching
- protractor
- rotating shaft
- 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
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Abstract
The utility model relates to stationery, in particular to a multi-functional mathematical ruler for teaching. Two ends of a fixing ruler are respectively connected with one end of each of a left ruler and a right ruler through shafts, each ruler body of the left ruler and the right ruler is provided with a movable groove, and the other ends of the left ruler and the right rulers are connected through pins on the movable grooves. An angle gauge is movably arranged on the fixing ruler through a rotating shaft, and a spinning handle is movably arranged on the rotating shaft. Compared with the prior art, the multi-functional mathematical ruler for teaching has the advantages of simplicity in structure, completeness in function and convenience in use and the like.
Description
Technical field
The utility model relates to a kind of stationery, specifically a kind of teaching gauge of mathematics teacher's special use.
Background technology
Math teacher is given lessons and often will be used educational aids such as fixed ruler, set square, protractor on mathematics class, and the set square of prior art substantially all is drawing square or the isoceles triangle chi of fixing, its leg-of-mutton length of side and interior angle all can not regulated at will, limited the use of set square.Occurred some a kind of teaching multifunctional mathmatical rulers of piecing together now, though function is complete slightly, complex structure, used inconvenience, the teachers ' teaching process has been brought inconvenience, namely lost time and expend teacher's energy.
China's utility model patent " a kind of teaching gauge " (patent No.: 2012201458704), a solution is disclosed, its main scale two ends flexibly connect two adjustable rules by bearing pin respectively, all be provided with chute on two adjustable rules, connect by the set bolt that is installed on the chute between two adjustable rules.This scheme has solved the problems referred to above to a certain extent, but in practice is used, find because the protractor of this chi is fixed structure, its position influence the angular transformation scope of adjustable rule, make some angles directly to draw, reduced the use value of this chi; The main scale of this chi and adjustable rule can't be drawn the angle greater than 90 less than 90 degree; Owing to do not have special handle in this scheme, cause the meeting when drawing of this chi unstable because fixing, and influence drawing quality.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of simple in structure, multiple functional a kind of teaching multifunctional mathmatical ruler is provided.
The technical solution of the utility model realizes in the following manner, a kind of teaching multifunctional mathmatical ruler, the fixed ruler two ends connect an end of left chi and right chi respectively by axle, have shifting chute on the blade of left chi and right chi, and the other end of left chi and right chi is connected by the pin that is installed on the shifting chute; Be movably installed with protractor by rotating shaft on the fixed ruler; Be movably installed with a rotating handle on the described axle.
As the further optimization of scheme, termination, described rotating handle outer end is provided with the chalk hole.
The utility model compared with prior art, have characteristics such as simple in structure, multiple functional, easy to use, integrate multiple educational aid, can be used as curve ruler, fixed ruler, protractor and set square and use, and two edge lengths of set square are adjustable, the direction of protractor can be transferred, it is convenient to map when making teachers' instruction, and the content that can intuitively the teacher will be taught is shown to the student, and it is concrete changing abstract, reduce teacher's workload simultaneously, time saving and energy saving.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure, fixed ruler 1, axle 2, right chi 3, pin 4, shifting chute 5, protractor 6, rotating shaft 7, left chi 8, rotating handle 9, chalk hole 10.
The specific embodiment
As shown in Figure 1, a kind of teaching multifunctional mathmatical ruler of the utility model, fixed ruler 1 two ends connect an end of left chi 8 and right chi 3 respectively by axle 2, have shifting chute 5 on the blade of left side chi 8 and right chi 3, the other end of left side chi 8 and right chi 3 is connected by the pin 4 that is installed on the shifting chute 5, described pin 4 is alignment pin, can fix the position of left chi 8 and right chi 3 after adjust the position; Be movably installed with protractor 6 by rotating shaft 7 on the fixed ruler 1; Be movably installed with a rotating handle 9 on the described axle 2, termination, rotating handle 9 outer end is provided with chalk hole 10.
During use, can unscrew pin 4, adjust the position of its shifting chute 5 on left chi 8 and right chi 3, thereby the angle between conversion left side chi 8 and right chi 3 and the fixed ruler 1, during aforesaid operations, protractor 6 can be forwarded to the below with fixed ruler 1, avoid influencing angle adjustment, can utilize the 6 pairs of angles of protractor on the fixed ruler 1 to measure simultaneously.Rotating handle 9 can rotate arbitrarily, is used for drawing the angle greater than 90 degree, and can directly draw camber line by the chalk hole 10 on the rotating handle 9.
Claims (2)
1. teaching multifunctional mathmatical ruler, it is characterized in that: fixed ruler (1) two ends connect an end of left chi (8) and right chi (3) respectively by axle (2), have shifting chute (5) on the blade of left side chi (8) and right chi (3), the other end of left chi (8) and right chi (3) is connected by the pin (4) that is installed on the shifting chute (5); Fixed ruler (1) is gone up and is movably installed with protractor (6) by rotating shaft (7); Be movably installed with a rotating handle (9) on the described axle (2).
2. a kind of teaching multifunctional mathmatical ruler as claimed in claim 1, it is characterized in that: described rotating handle (9) termination, outer end is provided with chalk hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220755830 CN203142173U (en) | 2012-12-29 | 2012-12-29 | Multi-functional mathematical ruler for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220755830 CN203142173U (en) | 2012-12-29 | 2012-12-29 | Multi-functional mathematical ruler for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203142173U true CN203142173U (en) | 2013-08-21 |
Family
ID=48969725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220755830 Expired - Fee Related CN203142173U (en) | 2012-12-29 | 2012-12-29 | Multi-functional mathematical ruler for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203142173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107053909A (en) * | 2017-04-22 | 2017-08-18 | 张建 | A kind of convenient teaching bevel protractor |
-
2012
- 2012-12-29 CN CN 201220755830 patent/CN203142173U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107053909A (en) * | 2017-04-22 | 2017-08-18 | 张建 | A kind of convenient teaching bevel protractor |
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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: 20130821 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |