CN201544649U - Stable type compasses for teaching - Google Patents
Stable type compasses for teaching Download PDFInfo
- Publication number
- CN201544649U CN201544649U CN2009202818245U CN200920281824U CN201544649U CN 201544649 U CN201544649 U CN 201544649U CN 2009202818245 U CN2009202818245 U CN 2009202818245U CN 200920281824 U CN200920281824 U CN 200920281824U CN 201544649 U CN201544649 U CN 201544649U
- Authority
- CN
- China
- Prior art keywords
- compasses
- ruler
- supporting leg
- teaching
- chalk
- 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
Links
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a stable type compasses for teaching, belonging to the technical field of writing or drawing tools; office supplies class, writing or drawing tools; writing or drawing auxiliary tools subclass, round curve plotter or similar instruments group under the subsection of printing in the section of performing operations and transporting according to the International Patent Classification (IPC). The stable type compasses comprises a supporting leg, a chalk cap and a chalk, wherein, the supporting leg is fixed on a sucker by a universal ball, a ruler is vertically fixed on the supporting leg, and the chalk cap is slidingly sleeved on the ruler by a rectangle sliding hole. Compared with the prior art, the stable type compasses have the characteristics of reasonable design, simple structure and convenient use, the compasses stability is enhanced, the radius of the circle is easy to adjust, and the compasses can be widely used for the mathematics teaching in the school and training institution.
Description
Technical field
The utility model provides a kind of firm formula compasses for teaching, divides by International Patent Classification (IPC) (IPC) to belong to operation Department of Transportation, and printing branch is write or drawing appliance; The big class of office appliance is write or drawing article; Write or draw assistant product group, circular curve plotter or analogous instrument technical group field.
Background technology
Compasses are one of instruments indispensable in the mathematical education, at present, and under a lot of people's effort, a lot of outstanding technical schemes occur, but now, the compasses that the teacher uses still have some deficits about compasses, can't well be fixed on the blackboard such as existing compasses, use the picture round belt to come inconvenience to the teacher; And draw the bad control of bowlder radius of a circle at every turn, need the cooperation of ruler, the use very complicated.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, provide a kind of simple in structure, regulate firm formula compasses for teaching easy to use.
The technical solution of the utility model realizes in the following manner, this firm formula compasses for teaching, its structure comprises supporting leg, chalk sleeve, chalk, described leg ends place is fixed on the sucker by multi-directional ball, vertical fixing has ruler on supporting leg, and chalk sleeve is connected on the ruler by rectangle slide opening slip cap.
Described ruler is wooden rule or plastic ruler.
The beneficial effect that the utility model is compared with prior art produced is:
That firm formula compasses for teaching of the present utility model has is simple in structure, be skillfully constructed, characteristics such as easy to use, supporting leg end pin place is provided with sucker structure and is adsorbed on the blackboard upper drawing circle by sucker, strengthen the steadiness of compasses, radius of a circle is easy to regulate, simple to operation, have wide range of applications simultaneously, can be widely used in the mathematical education in school, training organization.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is chalk sleeve slip socket schematic diagrames of the present utility model.
Mark in the accompanying drawing is represented respectively:
1, sucker, 2, multi-directional ball, 3, supporting leg, 4, ruler, 5, chalk sleeve, 6, chalk, 7, the rectangle slide opening.
The specific embodiment
Below in conjunction with accompanying drawing firm formula compasses for teaching of the present utility model is done following detailed description the in detail.
As accompanying drawing 1, shown in Figure 2, this firm formula compasses for teaching, its structure is made up of supporting leg 3, chalk sleeve 5, ruler 4, described supporting leg 3 ends are fixed on the sucker 1 by multi-directional ball 2, by the pivot pin vertical fixing ruler 4 are arranged on supporting leg 3, as shown in Figure 1, ruler 4 is marked with scale, this ruler 4 adopts timber or plastics to make, and chalk sleeve 5 is connected on the ruler 4 by rectangle slide opening 7 slip caps, is fixed with chalk 6 in the chalk sleeve 5.
When use is of the present utility model, only need the sucker 1 of supporting leg 3 ends is fixed in places such as blackboard or surface plate, regulate drawn radius of a circle then, can carry out the teaching of picture circle.
Claims (2)
1. firm formula compasses for teaching comprises supporting leg, chalk sleeve, chalk, it is characterized in that described leg ends place is fixed on the sucker by multi-directional ball, and vertical fixing has ruler on supporting leg, and chalk sleeve is connected on the ruler by rectangle slide opening slip cap.
2. firm formula compasses for teaching according to claim 1 is characterized in that described ruler is wooden rule or plastic ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202818245U CN201544649U (en) | 2009-11-25 | 2009-11-25 | Stable type compasses for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202818245U CN201544649U (en) | 2009-11-25 | 2009-11-25 | Stable type compasses for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201544649U true CN201544649U (en) | 2010-08-11 |
Family
ID=42599810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202818245U Expired - Fee Related CN201544649U (en) | 2009-11-25 | 2009-11-25 | Stable type compasses for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201544649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180741A (en) * | 2014-08-06 | 2014-12-03 | 奇瑞重工股份有限公司 | Multifunctional testing fixture |
-
2009
- 2009-11-25 CN CN2009202818245U patent/CN201544649U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180741A (en) * | 2014-08-06 | 2014-12-03 | 奇瑞重工股份有限公司 | Multifunctional testing fixture |
| CN104180741B (en) * | 2014-08-06 | 2017-07-21 | 中联重机股份有限公司 | A kind of Multifunctional check tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201646147U (en) | Multipurpose ruler-compass for teaching | |
| CN201544649U (en) | Stable type compasses for teaching | |
| CN201501217U (en) | Multi-functional plotting instrument | |
| CN204184085U (en) | Multi-functional ruler-compasses plotter | |
| CN203888463U (en) | Multifunctional teaching ruler | |
| CN201587240U (en) | Compass used for teaching | |
| CN201124681Y (en) | Drawing apparatus | |
| CN206589515U (en) | A kind of English teaching blackboard of convenient use | |
| CN205272967U (en) | Drawing sired results utensil | |
| CN201833762U (en) | Teaching compasses | |
| CN204801331U (en) | Drawing instrument is used to business administration specialty | |
| CN204526552U (en) | A kind of Multi-purpose ruler for teaching | |
| CN202319547U (en) | Bow compasses | |
| CN201376426Y (en) | Single-arm compass | |
| CN204095356U (en) | A kind of drawing tool | |
| CN203485638U (en) | Drawing tool for junior middle school mathematics teaching | |
| CN202547517U (en) | Multi-functional measuring scale | |
| CN201922786U (en) | Drawing instrument for teaching math | |
| CN202319552U (en) | Easy-to-adjust compass for teacher | |
| CN201257856Y (en) | Multi-functional angulometer | |
| CN202319556U (en) | Teaching ellipse drawing apparatus | |
| CN207889413U (en) | A kind of multidisciplinary applicable teaching ruler | |
| CN201979936U (en) | Multifunctional teaching compasses | |
| CN2524962Y (en) | Multifunction stationery rule | |
| CN207579405U (en) | A kind of teachers ' teaching ruler |
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: 20100811 Termination date: 20101125 |