CN201941407U - Multifunctional teaching aid - Google Patents
Multifunctional teaching aid Download PDFInfo
- Publication number
- CN201941407U CN201941407U CN2011200118378U CN201120011837U CN201941407U CN 201941407 U CN201941407 U CN 201941407U CN 2011200118378 U CN2011200118378 U CN 2011200118378U CN 201120011837 U CN201120011837 U CN 201120011837U CN 201941407 U CN201941407 U CN 201941407U
- Authority
- CN
- China
- Prior art keywords
- ruler
- sliding sleeve
- protractor
- circle
- teaching aid
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a multifunctional teaching aid which comprises a protractor, a ruler, a positioning bulge and a sliding sleeve and is characterized in that: the bottom edge of the protractor is fixedly connected on the '0' scale mark of the ruler; the sliding sleeve is sleeved on the ruler and is movably connected with the ruler; the '0' scale mark of the protractor is superposed with the '0' scale mark of the ruler; the center of the circle of the protractor is located on the axis of the ruler; the positioning bulge is arranged at the back of the center of the circle of the protractor; an empty slot is arranged along the axis of the ruler; a screw hole is arranged on the lower side face of the sliding sleeve; the sliding sleeve can be positioned by a fastening screw through the screw hole; a circular hole is arranged at the center of the sliding sleeve; and a scribed line is arranged on a vertical symmetry axis of the sliding sleeve. The ruler can be used for measuring a length and an angle and can also be used for drawing a circle; when the ruler is used for drawing the circle, the positioning bulge is pressed at the position of the center of the circle, and the circle can be drawn by inserting a pencil or a piece of chalk in the circular hole; moreover, the teaching aid can also be used for measuring the length and the angle and drawing lines.
Description
Technical field
The utility model relates to a kind of teaching aid, relates to a kind of multi-functional teaching aid specifically.
Background technology
In teaching, often to rule, draw circle with compasses with ruler, use the protractor measuring angle, if ruler, compasses, protractor all are with relatively more burdensome, trouble, China application (patent) numbers 200920066104.7, " a kind of multi-function drawing instrument " by name is though improve to some extent, but the circle that draws is the center of circle that does not have the location, the 2nd, and its diameter is not equal to scale label; China application (patent) numbers 200920244716,0, " a kind of multifunctional compass chi " by name, complex structure, its function singleness of each part, weight increases a lot, carries inconvenience.
Summary of the invention
The purpose of this utility model is the contradiction at above-mentioned prior art scheme, and a kind of multi-functional teaching aid is provided, and it can solve this contradiction effectively, thereby improves teaching, operating efficiency.
Technical solution of the present utility model is: a kind of multi-functional teaching aid, comprise protractor, ruler, positioning convex, sliding sleeve, it is characterized in that: the base of protractor is fixedly connected on " 0 " graduation mark of ruler, and sliding sleeve is enclosed within on the ruler and with ruler and flexibly connects.
" 0 " angle line of described protractor overlaps with " 0 " graduation mark of ruler, and the center of circle of protractor is on the axis of ruler.
The back side in the protractor center of circle is provided with positioning protrusion.
Axis along described ruler is provided with a dead slot.
One screw is set on the downside of described sliding sleeve, and holding screw can be located sliding sleeve by screw.
At the center of described sliding sleeve one circular hole is set, a groove is set on the vertical axis of symmetry of sliding sleeve.
Utilize this ruler can measuring angle, line, amount length, draw circle, draw bowlder, moving sliding sleeve is to required radius of a circle place, holding screw, with positioning convex by at the circle centre position that will draw, one-pen is inserted in just can draw in the circular hole of sliding sleeve round.
The utility model is simple in structure, easy to manufacture, cost is low, and use, easy to carry is very easily promoted.
Although in conjunction with the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make the concrete conversion of a lot of forms, these all belong within the protection domain of the present utility model.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Wherein: the 1-protractor, the 2-positioning convex, the 3-ruler, the 4-dead slot, the 5-holding screw, the 6-screw, the 7-sliding sleeve, the 8-circular hole,
The 9-groove.
The specific embodiment
As shown in Figure 1,
A kind of multi-functional teaching aid comprises protractor 1, ruler 3, positioning convex 2, sliding sleeve 7, it is characterized in that: the base of protractor 1 is fixedly connected on " 0 " graduation mark of ruler 3, and sliding sleeve 7 is enclosed within on the ruler 3 and with ruler 3 and flexibly connects.
" 0 " angle line of described protractor 1 overlaps with " 0 " graduation mark of ruler 3, and the center of circle of protractor 1 is on the axis of ruler 3.
The back side in protractor 1 center of circle is provided with positioning protrusion 2.
Axis along described ruler 3 is provided with a dead slot 4.
One screw 6 is set on the downside of described sliding sleeve 7, and holding screw 5 can be with sliding sleeve 7 location by screw 6.
At the center of described sliding sleeve 7 circular hole 8 is set, a groove 9 is set on the vertical axis of symmetry of sliding sleeve 7.
Utilize this ruler can measuring angle, line, amount length, draw circle, draw bowlder, moving sliding sleeve 7 is to required radius of a circle place, holding screw 5, with positioning convex 2 by at the circle centre position that will draw, one-pen is inserted in just can draw in the circular hole 8 of sliding sleeve round.
Claims (6)
1. multi-functional teaching aid, comprise protractor (1), ruler (3), positioning convex (2), sliding sleeve (7), it is characterized in that: the base of protractor (1) is fixedly connected on " 0 " graduation mark of ruler (3), and sliding sleeve (7) is enclosed within ruler (3) and goes up and flexibly connect with ruler (3).
2. a kind of multi-functional teaching aid according to claim 1 is characterized in that: " 0 " angle line of described protractor (1) overlaps with " 0 " graduation mark of ruler (3), and the center of circle of protractor (1) is on the axis of ruler (3).
3. a kind of multi-functional teaching aid according to claim 1 is characterized in that: the back side in protractor (1) center of circle is provided with positioning protrusion (2).
4. a kind of multi-functional teaching aid according to claim 1 is characterized in that: the axis along described ruler (3) is provided with a dead slot (4).
5. a kind of multi-functional teaching aid according to claim 1 is characterized in that: a screw (6) is set on the downside of described sliding sleeve (7), and holding screw (5) can be located sliding sleeve (7) by screw (6).
6. a kind of multi-functional teaching aid according to claim 1 is characterized in that: at the center of described sliding sleeve (7) circular hole (8) is set, a groove (9) is set on the vertical axis of symmetry of sliding sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200118378U CN201941407U (en) | 2011-01-07 | 2011-01-07 | Multifunctional teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200118378U CN201941407U (en) | 2011-01-07 | 2011-01-07 | Multifunctional teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201941407U true CN201941407U (en) | 2011-08-24 |
Family
ID=44468759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200118378U Expired - Fee Related CN201941407U (en) | 2011-01-07 | 2011-01-07 | Multifunctional teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201941407U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494133A (en) * | 2016-11-24 | 2017-03-15 | 刘颖 | A kind of engineer's scale |
| CN110605930A (en) * | 2019-09-18 | 2019-12-24 | 暨南大学 | Positioning ruler for multi-component material in combined member and positioning and drawing method |
-
2011
- 2011-01-07 CN CN2011200118378U patent/CN201941407U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494133A (en) * | 2016-11-24 | 2017-03-15 | 刘颖 | A kind of engineer's scale |
| CN110605930A (en) * | 2019-09-18 | 2019-12-24 | 暨南大学 | Positioning ruler for multi-component material in combined member and positioning and drawing method |
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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: 20110824 Termination date: 20120107 |