CN201931863U - Ellipsograph - Google Patents
Ellipsograph Download PDFInfo
- Publication number
- CN201931863U CN201931863U CN2010206896369U CN201020689636U CN201931863U CN 201931863 U CN201931863 U CN 201931863U CN 2010206896369 U CN2010206896369 U CN 2010206896369U CN 201020689636 U CN201020689636 U CN 201020689636U CN 201931863 U CN201931863 U CN 201931863U
- Authority
- CN
- China
- Prior art keywords
- coil
- support feet
- ellipsograph
- fine wire
- pen
- 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 discloses an ellipsograph, which comprises a handle, a fine wire and two support feet, wherein the two support feet are hinged on the handle. The ellipsograph is characterized in that the two support feet respectively comprise a long support foot and short support feet, the short support feet are used for being fixed on the paper surface, the long support foot and the short support feet are rotatablely connected through screw bolts, the two short support feet are respectively provided with a pulley, the outer circumferential side surfaces of the pulleys are provided with annular grooves, the fine wire is wound on a coil, the coil is provided with a screw used for fixing the fine wire, and a center hole is formed on the coil. Through fixing the fine wire in the grooves of the pulleys, a pen is fixed in the center hole of the coil, the fine wire is straightened through the pen so that the pen and the two pulleys support the fine wire into a triangular shape, the pen is moved to rotate a circle around the two support feet, and a required ellipse can be drawn. The use is very convenient, in addition, students can easily know the ellipse properties, and the ellipsograph is helpful for teaching.
Description
Technical field
The utility model relates to a kind of drawing instrument, relates in particular to a kind of ellipsograph of drawing oval usefulness.
Background technology
In several teaching, often use ellipse, also often need the picture ellipse in the students' work, general model of ellipse of drawing on the oval employing set square, the ellipse of Huaing is fixed like this, the arbitrarily ellipse of own needs that can not draw, it is very inconvenient to learn, do the homework etc. for the student.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of ellipsograph is provided, and it can draw the ellipse of arbitrary shape size.
For solving the problems of the technologies described above, the technical solution of the utility model is: ellipsograph, comprise handle, fine rule and be hinged on two legs on the described handle, it is characterized in that: described two legs comprise long foot and the short leg that is used for fixing on paper respectively, described long foot and short leg are rotatably connected by bolt, respectively be provided with a pulley on the described two short legs, described peripheral pulley side surface is provided with annular groove.
As a kind of improvement, described fine rule is wound on the coil, and described coil is provided with a screw that is used for fixing fine rule, and described coil is provided with a centre bore.
As further improvement, be provided with a rubber ring in the centre bore on the described coil.
Owing to adopted technique scheme, to lack leg is fixed on the drawing, fine rule is formed annular, be enclosed within on two pulleys, the pen support is exceptionally straight with fine rule on fine rule, make pen fine rule be supportted into a triangle, move pen and rotate the ellipse that can draw and need once enclosing around two legs with two pulleys, very convenient.
Because described fine rule twines on the coil, and the fixing screw of fine rule is arranged on the coil again, so the length that can regulate fine rule, thereby can draw the ellipse of suitable size.Rubber ring in the coil can be used for fixing pen, the convenient drawing.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of the coil among Fig. 1;
Among the figure, 1, handle; 2, long foot; 3, short leg; 4, bolt; 5, hinge; 6, pulley; 61, annular groove; 7, coil; 71, centre bore; 8, fine rule; 9, screw; 10, rubber ring.
The specific embodiment
Shown in Fig. 1 and Fig. 2 are common, ellipsograph, comprise handle 1,, fine rule 8, be hinged on two legs on the described handle 1; Described two legs comprise long foot 2 and the short leg 3 that is used for fixing on paper respectively, two long foot 2 are rotatably connected on the handle 1 by hinge 5, described long foot 2 and short leg 3 are rotatably connected by bolt 4, can make long foot 2 and short leg 3 form the angle that needs by bolt 4, respectively be provided with a pulley 6 on the described two short legs 3, described pulley 6 outer circumferential side surfaces are provided with annular groove 61.Described fine rule 8 is wound on the coil 7, described coil 7 is provided with a screw 9 that is used for fixing fine rule 8, fine rule 8 can be fixed on any Len req by screw 9, and described coil 7 is provided with a centre bore 71, and centre bore 71 diameters of described coil 7 are greater than the diameter of employed pen.Be provided with a rubber ring 10 in the centre bore 71, pen is when passing rubber ring 10 like this, and rubber ring 10 can block pen.
During use, according to the angle between shape size adjustment two long foot 2 of drawn ellipse, regulate the angle between long foot 2 and the short leg 3 then, make two short legs 3 vertical with paper, pulley 6 is parallel with paper, fine rule 8 is adjusted to suitable length, by screw 9 length is fixed, penholder is gone in the rubber ring 10, fix in place, fine rule 8 is enclosed within the annular groove 61 of two pulleys 6, regulate a position, make fine rule 8 tensions, triangular in shape, pen with rotary rounds in two pulleys, 6 peripheries, the figure that is drawn is needed ellipse, the ellipse of any size shape of can drawing in this way, and also help the student better to understand oval characteristic, convenient teaching.
Claims (3)
1. ellipsograph, comprise handle, fine rule and be hinged on two legs on the described handle, it is characterized in that: described two legs comprise long foot and the short leg that is used for fixing on paper respectively, described long foot and short leg are rotatably connected by bolt, respectively be provided with a pulley on the described two short legs, described peripheral pulley side surface is provided with annular groove.
2. ellipsograph as claimed in claim 1 is characterized in that: described fine rule is wound on the coil, and described coil is provided with a screw that is used for fixing fine rule, and described coil is provided with a centre bore.
3. ellipsograph as claimed in claim 2 is characterized in that: be provided with a rubber ring in the centre bore on the described coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206896369U CN201931863U (en) | 2010-12-17 | 2010-12-17 | Ellipsograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206896369U CN201931863U (en) | 2010-12-17 | 2010-12-17 | Ellipsograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201931863U true CN201931863U (en) | 2011-08-17 |
Family
ID=44443400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206896369U Expired - Fee Related CN201931863U (en) | 2010-12-17 | 2010-12-17 | Ellipsograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201931863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760450A (en) * | 2014-01-06 | 2015-07-08 | 何思妮 | Sign pen capable of drawing oval |
-
2010
- 2010-12-17 CN CN2010206896369U patent/CN201931863U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760450A (en) * | 2014-01-06 | 2015-07-08 | 何思妮 | Sign pen capable of drawing oval |
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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: 20110817 Termination date: 20111217 |