CN107053909A - A kind of convenient teaching bevel protractor - Google Patents
A kind of convenient teaching bevel protractor Download PDFInfo
- Publication number
- CN107053909A CN107053909A CN201710267948.7A CN201710267948A CN107053909A CN 107053909 A CN107053909 A CN 107053909A CN 201710267948 A CN201710267948 A CN 201710267948A CN 107053909 A CN107053909 A CN 107053909A
- Authority
- CN
- China
- Prior art keywords
- preformed holes
- protractor
- base
- rotating shaft
- preformed
- 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.)
- Pending
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Classifications
-
- 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
- B43L13/002—Angle intersecting devices
Abstract
The invention discloses a kind of convenient teaching bevel protractor, including base, second side, 3rd side, protractor, spirit level, rotating shaft, slide buckle, 30 ° of preformed holes, 60 ° of preformed holes, 45 ° of preformed holes, protective cap, protractor is fixed with the base, spirit level, base is by rotating shaft respectively at the second side, 3rd side is connected, same second at the 3rd between connected by rotating shaft, second while and when the 3rd on be fixed with slip buckle, graduation mark, 30 ° of preformed holes, 60 ° of preformed holes, 45 ° of preformed holes, second while and one end is respectively fixed with protective cap when the 3rd.The bevel protractor of a variety of scales is integrated in one by this teaching with bevel protractor, and being easy to carry reduces floor space, and use more facilitates, and spirit level can more preferably remind user to keep horizontal stability, improve the degree of accuracy.The damage that the effective collision free of protective cap is brought, increases the service life.
Description
Technical field
The present invention relates to teaching aid, and in particular to a kind of convenient teaching bevel protractor.
Background technology
In teaching, teacher often should the ruler with a variety of different angles, again band protractor, use these instruments
Draw angle or measurement angle is all inconvenient, and carry cumbersome space-consuming than larger.
The content of the invention
It is an object of the invention to provide a kind of convenient teaching bevel protractor, with asking for solving to propose in above-mentioned background technology
Topic.
To achieve the above object, the present invention provides following technical scheme：A kind of convenient teaching bevel protractor, including base,
Second while, the 3rd while, protractor, spirit level, rotating shaft, slide buckle, 30 ° of preformed holes, 60 ° of preformed holes, 45 ° of preformed holes, protections
Be fixed with protractor, spirit level on cap, the base, base by rotating shaft respectively at second while, the 3rd while connect, same second
Connected between at the 3rd by rotating shaft, second while and when the 3rd on provided with slide buckle, graduation mark, 30 ° of preformed holes, 60 °
Preformed hole, 45 ° of preformed holes, second while and one end is respectively fixed with protective cap when the 3rd.
It is preferred that, 30 ° of preformed holes, 60 ° of preformed holes, the corresponding number of degrees of 45 ° of preformed holes are between base and the 3rd side
The number of degrees, the position of preformed hole is calculated according to the different three edge lengths differences of the number of degrees.
Compared with prior art, the beneficial effects of the invention are as follows：This teaching is with bevel protractor by the bevel protractor collection of a variety of scales
In one, can conveniently draw 30 °, 60 °, 45 ° angularly, being easy to carry reduces floor space, use more facilitate；Spirit level
It can more preferably remind user to keep horizontal stability, improve the degree of accuracy；The damage that the effective collision free of protective cap is brought, prolongs
Long life.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：1- bases, the sides of 2- second, the sides of 3- the 3rd, 4- protractors, 5- spirit levels, 6-30 ° of preformed hole, 7-60 ° is reserved
Hole, 8-45 ° of preformed hole, 9- slides buckle, 10- graduation marks, 11- rotating shafts, 12- protective caps.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.
Referring to Fig. 1, a kind of embodiment that the present invention is provided：A kind of convenient teaching bevel protractor, including base 1, second
3, protractor 4, spirit level 5, rotating shaft 11, slip buckle 9,30 ° of preformed holes 6,60 ° of preformed holes 7,45 ° of preformed holes at the 2, the 3rd
8th, protractor 4, spirit level 5 are fixed with protective cap 12, the base 1, base 1 is by rotating shaft 11 respectively at the second side the 2, the 3rd
Side 3 is connected, same second at 2 and the 3rd 3 between connected by rotating shaft 11, second at 2 and the 3rd 3 on provided with slide buckle
9th, graduation mark 10,30 ° of preformed holes 6,60 ° of preformed holes 7,45 ° of preformed holes 8, second at 2 and the 3rd 3 one end be respectively fixed with guarantor
12,30 ° of preformed holes 6 of helmet, 60 ° of preformed holes 7,45 ° of corresponding number of degrees of preformed hole 8 are the number of degrees between the side 3 of base 1 and the 3rd,
Because the length of base 1 is fixed, the position of preformed hole is calculated according to the different three edge lengths differences of the number of degrees.
Specifically used mode：In the present invention, 3, protractor 4, spirit level 5, rotating shaft at the 2, the 3rd by base 1, second
11st, buckle 9,30 ° of preformed holes 6,60 ° of preformed holes 7,45 ° of preformed holes 8, protective caps 12 are slided and constitutes the present apparatus, when needing picture
During 30 angle, by second at 2 and the 3rd 3 on slip buckle 9 be transferred to 30 ° of preformed holes 6 respectively, when needing 45 angle of picture,
Base 1 with second while 2 length are identical need to be by second while 2 on slip buckle 9 be transferred on 60 ° of preformed holes 7, while by the 3rd
Slip buckle 9 on side 3 is transferred to 45 ° of preformed holes 8 up, when needing 60 angle of picture respectively by second in 2 and the 3rd while 3 on
Slip buckle 9 is transferred on 60 ° of preformed holes 7 and just can realized, the protractor 4 of setting can be vdiverse in function with measuring angle, and faculty makes
Used time more accurately draws angle according to the prompting of spirit level 5 and measures angle, and the protective cap 12 of setting effectively reduces collision belt
The damage come, increases the service life.
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
Claims (2)
1. a kind of convenient teaching bevel protractor, including base（1）, the second side（2）, the 3rd side（3）, protractor（4）, spirit level
（5）, rotating shaft（11）, slide buckle（9）, 30 ° of preformed holes（6）, 60 ° of preformed holes（7）, 45 ° of preformed holes（8）, protective cap（12）, its
It is characterised by：The base（1）On be fixed with protractor（4）, spirit level（5）, base（1）Pass through rotating shaft（11）Respectively at second
Side（2）, the 3rd side（3）Connection, same second side（2）With the 3rd side（3）Between pass through rotating shaft（11）Connection, the second side（2）With
3rd side（3）Provided with slip buckle（9）, graduation mark（10）, 30 ° of preformed holes（6）, 60 ° of preformed holes（7）, 45 ° of preformed holes（8）,
Second side（2）With the 3rd side（3）One end is respectively fixed with protective cap（12）.
2. the convenient teaching bevel protractor of one kind according to claim 1, it is characterised in that 30 ° of preformed holes（6）、60°
Preformed hole（7）, 45 ° of preformed holes（8）The corresponding number of degrees are base（1）With the 3rd side（3）Between the number of degrees, according to number of degrees difference three
Edge lengths difference calculates the position of preformed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267948.7A CN107053909A (en) | 2017-04-22 | 2017-04-22 | A kind of convenient teaching bevel protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267948.7A CN107053909A (en) | 2017-04-22 | 2017-04-22 | A kind of convenient teaching bevel protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107053909A true CN107053909A (en) | 2017-08-18 |
Family
ID=59603338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710267948.7A Pending CN107053909A (en) | 2017-04-22 | 2017-04-22 | A kind of convenient teaching bevel protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107053909A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060734U (en) * | 1990-01-05 | 1990-08-22 | 廖仁德 | Multi-purpose drawing aids |
| CN2357928Y (en) * | 1998-12-18 | 2000-01-12 | 袁治海 | Multifunctional teaching triangle |
| CN201456764U (en) * | 2009-08-11 | 2010-05-12 | 朴成汉 | Multifunctional teaching ruler |
| CN203142173U (en) * | 2012-12-29 | 2013-08-21 | 绥化学院 | Multi-functional mathematical ruler for teaching |
-
2017
- 2017-04-22 CN CN201710267948.7A patent/CN107053909A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060734U (en) * | 1990-01-05 | 1990-08-22 | 廖仁德 | Multi-purpose drawing aids |
| CN2357928Y (en) * | 1998-12-18 | 2000-01-12 | 袁治海 | Multifunctional teaching triangle |
| CN201456764U (en) * | 2009-08-11 | 2010-05-12 | 朴成汉 | Multifunctional teaching ruler |
| CN203142173U (en) * | 2012-12-29 | 2013-08-21 | 绥化学院 | Multi-functional mathematical ruler for teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170818 |
|
| WD01 | Invention patent application deemed withdrawn after publication |