CN202669311U - Common triangular ruler - Google Patents
Common triangular ruler Download PDFInfo
- Publication number
- CN202669311U CN202669311U CN 201220318526 CN201220318526U CN202669311U CN 202669311 U CN202669311 U CN 202669311U CN 201220318526 CN201220318526 CN 201220318526 CN 201220318526 U CN201220318526 U CN 201220318526U CN 202669311 U CN202669311 U CN 202669311U
- Authority
- CN
- China
- Prior art keywords
- circular hole
- transparent fixed
- fixed head
- chi body
- set square
- 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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- Length-Measuring Instruments Using Mechanical Means (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a common triangular ruler, which consists of a ruler body 1, a circular hole 2, a transparent fixed plate 3, a positioning bolt 4, a pointer 5, angle scales 6, length scales 7, a hanging hole 8 and a drawing circular hole 9, and is characterized in that the circular hole 2 is formed in the center of the ruler body 1; the transparent fixed plate 3 is arranged on the circular hole 2; the positioning bolt 4 is arranged in the circle center of the transparent fixed plate 3; the pointer 5 is arranged on the positioning bolt 4; and the angle scales 6 are labeled at the circumference of the circular hole 2. The common triangular ruler has the advantages of simple structure, scientific design, complete function and convenience in operation and carrying, can measure angles and is suitable for popularization; and the efficiency is improved.
Description
Technical field
The utility model relates to a kind of set square, relates in particular to set square commonly used in the teaching.
Background technology
In the teaching, the quality of writing on the blackboard drawing tool is quality and the efficient of impact mapping directly, the maximum effect of set square is the picture vertical line, but in the practical application, student and teacher are difficult to draw on the blackboard vertical line of standard again, math teacher usually need to be drawn triangle in the classroom, circular, rectangle, square, the figures such as line segment, can not in time determine with common set square angle, sometimes need to revise prolongation or embrocate, repeat to revise, the figure that draws may be not attractive in appearance yet, sometimes the figure complexity become the straight line of various angles with line of reference the time also need math teacher to carry a lot of drawing instruments, must use simultaneously to comprise ruler, compasses, the various teaching aids such as angel measuring instrument, drawing process is very complicated, and Partial angle can't identify, and is very inconvenient, loses time.
Summary of the invention
The purpose of this utility model is to overcome above weak point, a kind of set square commonly used is provided, utilize place, chi body center to offer circular hole, the transparent fixed head of device on the circular hole, transparent fixed head circle centre position device bolt, install pointer on the bolt, circular hole circumference angular dimension scale can be drawn the figures such as triangle, circle, line segment, realizes drafting standards, easy to operate, raise the efficiency.
The purpose of this utility model is realized by following technical scheme, develop a kind of set square commonly used, formed by chi body 1, circular hole 2, transparent fixed head 3, bolt 4, pointer 5, angle index 6, length scale 7, hanging hole 8, picture circular hole 9, it is characterized in that: place, described chi body 1 center offers circular hole 2, the transparent fixed head 3 of device on the circular hole 2, transparent fixed head 3 circle centre position device bolts 4, device pointer 5 on the bolt 4, circular hole 2 circumference angular dimension scales 6.
Long limit, described chi body 1 right angle arranges length scale 7, and picture circular hole 9 is offered in the lower end in the chi body 1, and the lower left corner arranges hanging hole 8.
Described circular hole 2 all is circular with transparent fixed head 3, and size is equal.
Advantage of the present utility model: simple in structure, design science can take measurement of an angle, and diverse in function is easy to operate, easy to carry, raises the efficiency, the suitable popularization.
Description of drawings
Fig. 1 is a kind of set square knot signal composition commonly used.
Specific embodiment
Referring to Fig. 1, the utility model has been developed a kind of set square commonly used, takes following steps:
This a kind of set square commonly used, formed by chi body 1, circular hole 2, transparent fixed head 3, bolt 4, pointer 5, angle index 6, length scale 7, hanging hole 8, picture circular hole 9, it is characterized in that: place, described chi body 1 center offers circular hole 2, the transparent fixed head 3 of device on the circular hole 2, transparent fixed head 3 circle centre position device bolts 4, device pointer 5 on the bolt 4, circular hole 2 circumference angular dimension scales 6.
Long limit, described chi body 1 right angle arranges length scale 7, and picture circular hole 9 is offered in the lower end in the chi body 1, and the lower left corner arranges hanging hole 8.
Described circular hole 2 all is circular with transparent fixed head 3, and size is equal.
In addition, the utility model does not mean that by schematic diagram and specification and limits to, can change to some extent under the prerequisite that does not break away from design aim.
Claims (3)
1. set square commonly used, by chi body (1), circular hole (2), transparent fixed head (3), bolt (4), pointer (5), angle index (6), length scale (7), hanging hole (8), drawing circular hole (9) forms, it is characterized in that: place, described chi body (1) center offers circular hole (2), the upper transparent fixed head of device (3) of circular hole (2), transparent fixed head (3) circle centre position device bolt (4), the upper device pointer (5) of bolt (4), circular hole (2) circumference angular dimension scale (6).
2. a kind of set square commonly used according to claim 1 is characterized in that: long limit, described chi body (1) right angle arranges length scale (7), and picture circular hole (9) is offered in the lower end in the chi body (1), and the lower left corner arranges hanging hole (8).
3. a kind of set square commonly used according to claim 1 is characterized in that: described circular hole (2) all is circular with transparent fixed head (3), and size is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220318526 CN202669311U (en) | 2012-06-27 | 2012-06-27 | Common triangular ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220318526 CN202669311U (en) | 2012-06-27 | 2012-06-27 | Common triangular ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202669311U true CN202669311U (en) | 2013-01-16 |
Family
ID=47490241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220318526 Expired - Fee Related CN202669311U (en) | 2012-06-27 | 2012-06-27 | Common triangular ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202669311U (en) |
-
2012
- 2012-06-27 CN CN 201220318526 patent/CN202669311U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20130627 |