CN202413135U - Ellipse drawing device - Google Patents
Ellipse drawing device Download PDFInfo
- Publication number
- CN202413135U CN202413135U CN2012200449214U CN201220044921U CN202413135U CN 202413135 U CN202413135 U CN 202413135U CN 2012200449214 U CN2012200449214 U CN 2012200449214U CN 201220044921 U CN201220044921 U CN 201220044921U CN 202413135 U CN202413135 U CN 202413135U
- Authority
- CN
- China
- Prior art keywords
- drawing device
- scriber
- positioning seat
- positioning
- ellipse drawing
- 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 provides an ellipse drawing device which belongs to the field of a teaching aid. The ellipse drawing device structurally comprises a positioning body, a string and a scriber, wherein the positioning body comprises a positioning seat and a suction cup; the suction cup is arranged below the positioning seat and fixedly connected with the positioning seat; a positioning slot is arranged above the positioning seat and fixedly connected with the positioning seat; a chalk clamp is arranged at the middle part of the scriber, and the string is sleeved inside the positioning slot after passing through a connection block arranged on the scriber. Compared with the prior art, the ellipse drawing device has the characteristics of rational design, simple structure, convenience in use and the like.
Description
Technical field
The utility model relates to a kind of teaching aid, specifically a kind of ellipse drawing device.
Background technology
Draw ellipse and be the situation that teachers and students and the every profession and trade engineering staff etc. of school often run into.At present, common ellipsograph is made up of the base plate and the swing arm of band cross chute, and a movable slide sign respectively is housed on the cross chute.A swing arm is arranged below the slide sign.This swing arm fuses with two slide signs in length and breadth.Move slide sign, the rotation that the swing arm below it can the be made 360 degree ellipse that draws.Also having one big type is the card body structure that utilizes compasses, draws ellipse through increasing a mode such as feet.All things considered, the problem that existing ellipsograph exists is: structure is complicated, cost is high; Ellipse can easily not draw; The ellipsograph of band feet can support unstable on blackboard, and nib appearance slip in a single day, and oval drafting promptly fails.
Summary of the invention
The technical assignment of the utility model is the deficiency to prior art, and a kind of ellipse drawing device reasonable in design, simple in structure is provided.
The utility model solves the technical scheme that its technical problem adopted:
The ellipse drawing device comprises positioning body, cord and scriber, and said positioning body comprises positioning seat and sucker, and sucker is arranged on the positioning seat below and is fixedly connected with it, and the positioning seat top is provided with locating slot and is fixedly connected with it; Said scriber middle part is provided with the chalk folder, and said cord is enclosed within the locating slot after passing the contiguous block that is provided with on the scriber again.
Said positioning body is provided with two and big or small identical.
The height of said chalk folder is less than the height of positioning body.
Be slidingly connected between said cord and the contiguous block.
A kind of ellipse drawing device of the utility model compared with prior art, the beneficial effect that is produced is:
The utlity model has characteristics such as reasonable in design, simple in structure, easy to use, function admirable, practicality, cost is low, easy to carry, operates comparatively simply, can draw out ellipse like a cork according to the focus of location, guarantees that teaching carries out smoothly.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
Among the figure: 1, scriber, 2, contiguous block, 3, the chalk folder, 4, cord, 5, locating slot, 6, positioning seat, 7, sucker.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done following the detailed description.
Shown in accompanying drawing 1; A kind of ellipse drawing device of the utility model, its structure comprises positioning body, cord 4 and scriber 1, said positioning body comprises positioning seat 6 and sucker 7; Sucker 7 is arranged on positioning seat 6 belows and is fixedly connected with it, and positioning seat 6 tops are provided with locating slot 5 and are fixedly connected with it; Said scriber 1 middle part is provided with chalk folder 3, and said cord 4 is enclosed within the locating slot 5 after passing the contiguous block 2 that is provided with on the scriber 1 again.
Said positioning body is provided with two and big or small identical.The height of chalk folder 3 is less than the height of positioning body.Be slidingly connected between cord 4 and the contiguous block 2.
During use, according to the oval size that will draw, two oval focuses of location on blackboard utilize sucker 7 that positioning body is adsorbed on the focus then.Place chalk in the chalk folder 3 on scriber 1, can on blackboard, carry out ellipse drawing.
A kind of its processing and fabricating of ellipse drawing device of the utility model is simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of specification, be this professional's known technology.
Claims (4)
1. an ellipse drawing device comprises positioning body, cord and scriber, it is characterized in that: said positioning body comprises positioning seat and sucker, and sucker is arranged on the positioning seat below and is fixedly connected with it, and the positioning seat top is provided with locating slot and is fixedly connected with it; Said scriber middle part is provided with the chalk folder, and said cord is enclosed within the locating slot after passing the contiguous block that is provided with on the scriber again.
2. a kind of ellipse drawing device according to claim 1 is characterized in that: said positioning body is provided with two and big or small identical.
3. a kind of ellipse drawing device according to claim 1 is characterized in that: the height of chalk folder is less than the height of positioning body.
4. a kind of ellipse drawing device according to claim 1 is characterized in that: be slidingly connected between cord and the contiguous block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200449214U CN202413135U (en) | 2012-02-13 | 2012-02-13 | Ellipse drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200449214U CN202413135U (en) | 2012-02-13 | 2012-02-13 | Ellipse drawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202413135U true CN202413135U (en) | 2012-09-05 |
Family
ID=46737923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200449214U Expired - Fee Related CN202413135U (en) | 2012-02-13 | 2012-02-13 | Ellipse drawing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202413135U (en) |
-
2012
- 2012-02-13 CN CN2012200449214U patent/CN202413135U/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: 20120905 Termination date: 20130213 |