CN202573509U - Dedicated drawing instrument for drawing ellipses - Google Patents
Dedicated drawing instrument for drawing ellipses Download PDFInfo
- Publication number
- CN202573509U CN202573509U CN 201220142441 CN201220142441U CN202573509U CN 202573509 U CN202573509 U CN 202573509U CN 201220142441 CN201220142441 CN 201220142441 CN 201220142441 U CN201220142441 U CN 201220142441U CN 202573509 U CN202573509 U CN 202573509U
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- cantilever
- inverted
- special
- rotating shaft
- shaped base
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- Expired - Fee Related
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Abstract
The utility model relates to a dedicated drawing instrument for drawing ellipses, which is characterized by comprising an inverted T-shaped base, a rotating shaft, a propelling pencil, two rulers and a cord, wherein the rotating shaft comprises a first cantilever; the bottom of the rotating shaft is in slewing connection with the top of the inverted T-shaped base; the propelling pencil comprises a second cantilever which is in sliding connection with the first cantilever; one ends of the rulers are in sliding connection with two ends at the bottom of the inverted T-shaped base; and two ends of the cord are connected with the other ends of the rulers. The dedicated drawing instrument is simple in structure, low in manufacturing cost, and can be used for drawing ellipses of different sizes simply and conveniently.
Description
Technical field
The utility model relates to a kind of picture instrument, the special-purpose picture instrument of especially a kind of ellipse.
Background technology
At present, the temporary transient oval instrument of picture that also is not used for specially on the market, the picture personnel can only rely on the ellipse that draws of feeling of oneself, and are often very nonstandard, very undesirable for teachers ' teaching or student's results of learning.At present, the oval device of known picture generally couples together the two ends of line with ruler by a pen, ruler and a line are formed always, hand steered ruler of living then, and an other hand steered penholder coiling picture of living is once enclosing out an ellipse.The oval method of this picture, not only operation is very not easy, needs two hands of picture personnel to operate simultaneously, and when needs change oval size, also will remove wiring again, and pen coiling does not sometimes wind in addition, and the ellipse that also can causing draws comes is not very desirable.
Summary of the invention
In view of the deficiency of prior art, the purpose of the utility model is to provide a kind of oval oval special-purpose picture instrument of picture that makes things convenient for.
To achieve these goals, the technical scheme of the utility model is: the special-purpose picture instrument of a kind of ellipse comprises: an inverted T-shaped base; One rotating shaft, this rotating shaft have one first cantilever, and the bottom of this rotating shaft is connected with the top revolution of inverted T-shaped base; One propelling pencil, this propelling pencil have one second cantilever, and this second cantilever and first cantilever are slidingly connected; Two rulers, an end of those rulers are slidingly connected with the two ends, bottom of inverted T-shaped base respectively; One cotton rope, the two ends of this cotton rope are connected with the other end of two rulers respectively.
Further, this first cantilever is provided with first fixed screw that is used for fixing second cantilever.
Further, be provided with the spring that is used to withstand the second cantilever end in this first cantilever.
Further, the two ends, bottom of this inverted T-shaped base are provided with graduation mark.
Further, this rotating shaft is provided with the reinforcement that is used to strengthen the first cantilever design intensity.
Further, be provided with rolling bearing between the top of the bottom of this rotating shaft and inverted T-shaped base.
Further, the top of this rotating shaft is provided with lever.
Further, the two ends, bottom of this inverted T-shaped base are respectively arranged with second fixed screw that is used for fixing two rulers.
Further, the bottom of this propelling pencil offers the groove that matches with cotton rope.
Further, this cotton rope is a wrap wire.
Compared with prior art, the utlity model has following advantage: the special-purpose picture instrument of (1) this ellipse simple in structure, not only make simply, and cost of manufacture is low; (2) the special-purpose picture instrument of this ellipse can similar compasses to draw circle the same, the picture personnel ellipse that can draw is easily regulated oval big or small, simple to operate that institute will draw easily.
Description of drawings
Fig. 1 is the organigram of the utility model embodiment.
Among the figure: 1-inverted T-shaped base, 2-rotating shaft, 3-first cantilever, 4-propelling pencil, 5-second cantilever, 6-ruler, 7-cotton rope, 8-first fixed screw, 9-spring, 10-reinforcement, 11-rolling bearing, 12-lever, 13-second fixed screw.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further elaboration.
With reference to figure 1, the special-purpose picture instrument of a kind of ellipse comprises: an inverted T-shaped base 1; One rotating shaft 2, this rotating shaft 2 has one first cantilever 3, and the bottom of this rotating shaft 2 is connected with the top revolution of inverted T-shaped base 1; One propelling pencil 4, this propelling pencil 4 has one second cantilever 5, and this second cantilever 5 and first cantilever 3 are slidingly connected; Two rulers 6, an end of those rulers 6 are slidingly connected with the two ends, bottom of inverted T-shaped base 1 respectively; One cotton rope 7, the two ends of this cotton rope 7 are connected with the other end of two rulers 6 respectively.
For fixing second cantilever 5, this first cantilever 3 is provided with first fixed screw 8, is provided with the spring 9 that is used to withstand second cantilever, 5 ends in this first cantilever 3; In the present embodiment, the end of this second cantilever 5 is stretched in first cantilever 3 and by first fixed screw 8 and is fixed, and the picture personnel can unclamp first fixed screw 8 to regulate the extension elongation of second cantilever 5, lock first fixed screw 8 again after adjusting finishes.
In order to strengthen the structural strength of first cantilever 3, this rotating shaft 2 is provided with reinforcement 10.In order to reduce frictional force, be provided with rolling bearing 11 between the top of the bottom of this rotating shaft 2 and inverted T-shaped base 1.The personnel operation of drawing for ease, the top of this rotating shaft 2 is provided with lever 12, and all sides of said lever 12 are provided with anti-skidding line.
In order to fix two rulers 6 respectively, the two ends, bottom of this inverted T-shaped base 1 are respectively arranged with second fixed screw 13; In order to be fixed on the paper so that draw by the special-purpose picture instrument of ellipse; Two rulers 6 are rectangular structure, and two rulers 6 socket-connect with the two ends, bottom of inverted T-shaped base 1 respectively, and an end of each ruler 6 stretches into respectively in the inverted T-shaped base 1 and be fixing respectively by two second fixed screws 13; When needing the different sizes of picture oval; Only need unclamp second fixed screw 13 to regulate the extension elongation of corresponding ruler 6, the extension elongation of two rulers 6 should equate, locks second fixed screw 13 again after adjusting finishes.In the present embodiment, the two ends, bottom of this inverted T-shaped base are provided with graduation mark.In the present embodiment, the bottom of this propelling pencil 4 offers the groove that matches with cotton rope 7, and this cotton rope 7 is close proximity in the groove and can be free to slide, and this cotton rope 7 can be selected wrap wire for use, but is not limited to this.
The course of work of the utility model is following: similar method with compasses picture circle is the same, and picture personnel's thumb and forefinger are held the lever at rotating shaft 2 tops, make rotating shaft 2 relative inverted T-shaped bases 1 revolve the ellipse that just can draw that turns around; The picture personnel can come the ellipse of the different sizes of picture with the extension elongation of second cantilever 5 through the extension elongation of regulating two rulers 6.
The above is merely the preferred embodiment of the utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model.
Claims (10)
1. the special-purpose picture instrument of ellipse is characterized in that, comprising:
One inverted T-shaped base;
One rotating shaft, this rotating shaft have one first cantilever, and the bottom of this rotating shaft is connected with the top revolution of inverted T-shaped base;
One propelling pencil, this propelling pencil have one second cantilever, and this second cantilever and first cantilever are slidingly connected;
Two rulers, an end of those rulers are slidingly connected with the two ends, bottom of inverted T-shaped base respectively;
One cotton rope, the two ends of this cotton rope are connected with the other end of two rulers respectively.
2. the special-purpose picture instrument of ellipse according to claim 1 is characterized in that: this first cantilever is provided with first fixed screw that is used for fixing second cantilever.
3. the special-purpose picture instrument of ellipse according to claim 1 and 2 is characterized in that: be provided with the spring that is used to withstand the second cantilever end in this first cantilever.
4. the special-purpose picture instrument of ellipse according to claim 1 is characterized in that: the two ends, bottom of this inverted T-shaped base are provided with graduation mark.
5. the special-purpose picture instrument of ellipse according to claim 1, it is characterized in that: this rotating shaft is provided with the reinforcement that is used to strengthen the first cantilever design intensity.
6. the special-purpose picture instrument of ellipse according to claim 1 is characterized in that: be provided with rolling bearing between the top of the bottom of this rotating shaft and inverted T-shaped base.
7. the special-purpose picture instrument of ellipse according to claim 1, it is characterized in that: the top of this rotating shaft is provided with lever.
8. the special-purpose picture instrument of ellipse according to claim 1 is characterized in that: the two ends, bottom of this inverted T-shaped base are respectively arranged with second fixed screw that is used for fixing two rulers.
9. the special-purpose picture instrument of ellipse according to claim 1, it is characterized in that: the bottom of this propelling pencil offers the groove that matches with cotton rope.
10. according to claim 1 or the special-purpose picture instrument of 9 described ellipses, it is characterized in that: this cotton rope is a wrap wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220142441 CN202573509U (en) | 2012-04-07 | 2012-04-07 | Dedicated drawing instrument for drawing ellipses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220142441 CN202573509U (en) | 2012-04-07 | 2012-04-07 | Dedicated drawing instrument for drawing ellipses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202573509U true CN202573509U (en) | 2012-12-05 |
Family
ID=47242954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220142441 Expired - Fee Related CN202573509U (en) | 2012-04-07 | 2012-04-07 | Dedicated drawing instrument for drawing ellipses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202573509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561951A (en) * | 2019-09-23 | 2019-12-13 | 西南交通大学 | Convenient ellipsograph |
-
2012
- 2012-04-07 CN CN 201220142441 patent/CN202573509U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561951A (en) * | 2019-09-23 | 2019-12-13 | 西南交通大学 | Convenient ellipsograph |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20150407 |
|
| EXPY | Termination of patent right or utility model |