CN2905477Y - Multifunctional compasses - Google Patents
Multifunctional compasses Download PDFInfo
- Publication number
- CN2905477Y CN2905477Y CN 200620072838 CN200620072838U CN2905477Y CN 2905477 Y CN2905477 Y CN 2905477Y CN 200620072838 CN200620072838 CN 200620072838 CN 200620072838 U CN200620072838 U CN 200620072838U CN 2905477 Y CN2905477 Y CN 2905477Y
- Authority
- CN
- China
- Prior art keywords
- supporting leg
- center
- compasses
- circle
- connecting rods
- 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)
Abstract
As multifunctional compasses, the utility model relates to the structure technology of compasses and comprises a center supporting leg and a scriber supporting leg that are hinged together at an end, wherein another end of the center supporting leg connect the center needle, another end of the scriber supporting leg connects the scriber, the two supporting legs that are equidistant from the hinge point are respectively connected with a straight connecting rod, another ends of the two connecting rods are hinged together, a side of the two connecting rods is provided with a continuous unit of length and the other of the connecting rods is provided with the scale of connected angles. When two legs of the compasses from a right angle, the connecting rod forms the bevel edge of the isosceles right angle triangle, one side is arranged with scale of length unit and other side is provided with angle unit scale and this the compasses at the same time has the function of a triangle and a protractor. The utility model integrates the compasses, the triangle ruler and the protractor and is convenient to bring about without influencing the normal use. Meanwhile, production material can be saved and waste can be reduced.
Description
Technical field
The utility model relates to the structure technology of a kind of teaching equipment, particularly compasses.
Background technology
Compasses, set square and protractor are the teaching aids that large, medium and small teacher uses always.Because the volume of set square and protractor is bigger, carry extremely inconvenient.Therefore, these three kinds of teaching aids commonly used if can be integrated,, have bigger practical value to reduce volume and convenient the use.
The utility model content
The utility model purpose is to design a kind of multifunctional compass that is convenient for carrying.
The utility model comprises center of circle supporting leg and the line supporting leg that an end is hinged mutually, the other end of center of circle supporting leg connects center of circle pin, the other end of line supporting leg connects scriber, on two equidistant supporting legs of distance hinge contact, be hinged a straight shape connecting rod respectively, the other end of two connecting rods is hinged, one side at two connecting rods is provided with continuous long measure scale, is provided with the angular unit scale of connection at the another side of two connecting rods.
The utility model increases by two connecting rods on the basis of common compasses, when two legs of compasses were mutually the right angle, connecting rod was the hypotenuse of isosceles right triangle, simultaneously was carved with the long measure scale at it; One side then is carved with the angular unit scale in addition, so just makes these compasses have the function of set square and protractor simultaneously.Two connecting rods are hinged mutually, and they can freely be stretched along with the change of compasses two leg angles (being radius of a circle) size, thereby do not influence the normal use of compasses.The utility model is convenient for carrying compasses, set square and protractor three integrator, does not influence normal use, saves and produces material, the joint little waste.
In addition, the utility model also is hinged a short chi on the supporting leg of the center of circle, the hinge contact of described short chi is positioned at 1/4th places of the hinge contact of center of circle supporting leg and line supporting leg to center of circle pin end, on the line supporting leg, reading point is set, described reading point is located at 1/4th places of the hinge contact of center of circle supporting leg and line supporting leg to the scriber end, is provided with 1: 4 scale on short chi.Can on short chi, read the radius of any circle or circular arc.
Also can on short chi, be provided with angular unit, can be used as fixing protractor and use.
Above-mentioned two connecting rods are isometric.Make things convenient for folding.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the reverse side schematic diagram of Fig. 1.
The specific embodiment
As shown in Figure 1, 2, an end of center of circle supporting leg 1 and line supporting leg 2 is hinged mutually, at the other end connection center of circle of center of circle supporting leg 1 pin 3, at the other end connection scriber 4 of line supporting leg 2, as metal marker.
The other end that is hinged isometric 5,6, two connecting rods 5,6 of straight shape connecting rod on equidistant two supporting legs 1,2 of distance hinge contact respectively is hinged.One side at two connecting rods 5,6 is provided with continuous long measure scale 7, is provided with the angular unit scale 8 of connection at the another side of two connecting rods 5,6.
Be hinged a short chi 9 on center of circle supporting leg 1, the hinge contact of short chi 9 is positioned at 1/4th places of the hinge contact of center of circle supporting leg 1 and line supporting leg 2 to center of circle pin 3 ends.On line supporting leg 2, reading point 12 is set, as this trace, or groove, reading point 12 is located at 1/4th places of the hinge contact of center of circle supporting leg 1 and line supporting leg 2 to scriber 4 ends, is provided with 1: 4 scale 10 on short chi 9, and another side is provided with angular unit 11.
Claims (4)
1, multifunctional compass, comprise center of circle supporting leg and line supporting leg that an end is hinged mutually, the other end of center of circle supporting leg connects center of circle pin, the other end of line supporting leg connects scriber, it is characterized in that on two equidistant supporting legs of distance hinge contact, being hinged a straight shape connecting rod respectively, the other end of two connecting rods is hinged, and is provided with continuous long measure scale in the one side of two connecting rods, is provided with the angular unit scale of connection at the another side of two connecting rods.
2, according to the described multifunctional compass of claim 1, it is characterized in that on the supporting leg of the center of circle, being hinged a short chi, the hinge contact of described short chi is positioned at 1/4th places of the hinge contact of center of circle supporting leg and line supporting leg to center of circle pin end, on the line supporting leg, reading point is set, described reading point is located at 1/4th places of the hinge contact of center of circle supporting leg and line supporting leg to the scriber end, is provided with 1: 4 scale on short chi.
3,, it is characterized in that short chi is provided with angular unit according to the described multifunctional compass of claim 2.
4,, it is characterized in that two connecting rods are isometric according to claim 1 or 2 or 3 described multifunctional compass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072838 CN2905477Y (en) | 2006-04-20 | 2006-04-20 | Multifunctional compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072838 CN2905477Y (en) | 2006-04-20 | 2006-04-20 | Multifunctional compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2905477Y true CN2905477Y (en) | 2007-05-30 |
Family
ID=38114109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620072838 Expired - Fee Related CN2905477Y (en) | 2006-04-20 | 2006-04-20 | Multifunctional compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2905477Y (en) |
-
2006
- 2006-04-20 CN CN 200620072838 patent/CN2905477Y/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: 20070530 Termination date: 20100420 |