CN204472304U - A kind of teaching multifunctional compass - Google Patents
A kind of teaching multifunctional compass Download PDFInfo
- Publication number
- CN204472304U CN204472304U CN201520155229.2U CN201520155229U CN204472304U CN 204472304 U CN204472304 U CN 204472304U CN 201520155229 U CN201520155229 U CN 201520155229U CN 204472304 U CN204472304 U CN 204472304U
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- Prior art keywords
- chi leg
- chi
- leg
- protractor
- utility
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Abstract
The utility model discloses a kind of teaching multifunctional compass, comprise the first chi leg, the second chi leg, bearing pin, protractor, regulation foot and bush of chalk; Described first chi leg and the second chi leg pass through pinned connection with end; Described protractor is inserted in the hole slot that is arranged on the first chi leg and the second chi leg; Described regulation foot and bush of chalk are installed in the first chi leg and the second chi leg another end; This mathematical education multifunctional compass, can realize, under compasses picture circle effect prerequisite, can also realizing the effect of arc measurement and linear measure longimetry; When only using compasses, can say that protractor is dismantled; Overall structure is simple, practical, is easy to promote the use of.
Description
Technical field
The utility model relates to mathematics drawing equipment applied technical field, especially a kind of teaching multifunctional compass.
Background technology
Compasses, in mathematics and drawing, are used to the instrument drawing circle or string, are usually used in construction with ruler and compasses.Compasses make normally metal, comprise two parts connect by a hinge or bearing pin.
In existing mathematical education, compasses often use, and the circular arc finished in analytic geometry generally also will carry out the measurement of circular arc radian, if compasses and protractor combinationally used, both can avoid the loaded down with trivial details situation of taking instrument when measuring back and forth.
Prior art is difficult to the productive life needs meeting people, and for the problems referred to above, the utility model aims to provide a kind of teaching multifunctional compass.
For realizing this technical purpose, the technical solution adopted in the utility model is: a kind of teaching multifunctional compass, comprises the first chi leg, the second chi leg, bearing pin, protractor, regulation foot and bush of chalk; Described first chi leg and the second chi leg pass through pinned connection with end; Described protractor is inserted in the hole slot that is arranged on the first chi leg and the second chi leg; Described regulation foot and bush of chalk are installed in the first chi leg and the second chi leg another end.
As further technical scheme of the present utility model: described protractor is by first paragraph arc sheet and second segment arc sheet by being arranged on fastener on first paragraph arc sheet and second segment arc sheet and draw-in groove is connected together, and first paragraph arc sheet is connected with second segment arc sheet for detaching structure.
As further technical scheme of the present utility model: described first chi leg and the second chi leg are provided with scale.
Compared with prior art, the beneficial effects of the utility model are: this mathematical education multifunctional compass, can realize, under compasses picture circle effect prerequisite, can also realizing the effect of arc measurement and linear measure longimetry; When only using compasses, can say that protractor is dismantled; Overall structure is simple, practical, is easy to promote the use of.
Utility model content
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is explosive view of the present utility model;
Wherein: the first chi leg 1; Second chi leg 2; Bearing pin 3; Protractor 4; Regulation foot 5; Bush of chalk 6; First paragraph arc sheet 41; Second segment arc sheet 42; Fastener 411; Draw-in groove 421; Scale 21.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Figure of description 1 ~ 2, in the utility model embodiment, a kind of teaching multifunctional compass, comprises the first chi leg 1, second chi leg 2, bearing pin 3, protractor 4, regulation foot 5 and bush of chalk 6; Described first chi leg 1 is connected by bearing pin 3 with end with the second chi leg 2; Described protractor 4 is inserted in the hole slot that is arranged on the first chi leg 1 and the second chi leg 2; Described regulation foot 5 and bush of chalk 6 are installed in the first chi leg 1 and the second chi leg 2 another end.
As further technical scheme of the present utility model: described protractor 4 is by first paragraph arc sheet 41 and second segment arc sheet 42 by being arranged on fastener 411 on first paragraph arc sheet 41 and second segment arc sheet 42 and draw-in groove 421 is connected together, and first paragraph arc sheet 41 is connected with second segment arc sheet 421 for detaching structure.
As further technical scheme of the present utility model: described first chi leg 1 and the second chi leg 2 are provided with scale 21.
Action principle of the present utility model is: the first chi leg 1 and the second chi leg 2 are by pinned connection and then form compasses, can draw circle; Protractor 4 can be convenient for measuring and calculate circular arc radian; Owing to being provided with scale 21 on the first chi leg 1 and the second chi leg 2, the overall measurement effect that can also realize distance while can realizing mapping effect.
To those skilled in the art, but the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
The above; be only preferred embodiment of the present utility model; not in order to limit the utility model, every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalently replace and improve, within the protection domain that all should be included in technical solutions of the utility model.
Claims (3)
1. a teaching multifunctional compass, comprises the first chi leg (1), the second chi leg (2), bearing pin (3), protractor (4), regulation foot (5) and bush of chalk (6); It is characterized in that: described first chi leg (1) is connected by bearing pin (3) with end with the second chi leg (2); Described protractor (4) is inserted in the hole slot that is arranged on the first chi leg (1) and the second chi leg (2); Described regulation foot (5) and bush of chalk (6) are installed in the first chi leg (1) and the second chi leg (2) another end.
2. one teaching multifunctional compass according to claim 1, it is characterized in that: described protractor (4) is by first paragraph arc sheet (41) and second segment arc sheet (42) by being arranged on fastener (411) on first paragraph arc sheet (41) and second segment arc sheet (42) and draw-in groove (421) is connected together, and first paragraph arc sheet (41) is connected with second segment arc sheet (421) for detaching structure.
3. one teaching multifunctional compass according to claim 1, is characterized in that: described first chi leg (1) and the second chi leg (2) are provided with scale (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520155229.2U CN204472304U (en) | 2015-03-14 | 2015-03-14 | A kind of teaching multifunctional compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520155229.2U CN204472304U (en) | 2015-03-14 | 2015-03-14 | A kind of teaching multifunctional compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204472304U true CN204472304U (en) | 2015-07-15 |
Family
ID=53628086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520155229.2U Expired - Fee Related CN204472304U (en) | 2015-03-14 | 2015-03-14 | A kind of teaching multifunctional compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204472304U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183559A (en) * | 2016-09-27 | 2016-12-07 | 泉州惠安泉创文化用品有限公司 | A kind of compasses with angular surveying |
| CN106904029A (en) * | 2017-01-25 | 2017-06-30 | 东莞产权交易中心 | Multifunctional compasses |
-
2015
- 2015-03-14 CN CN201520155229.2U patent/CN204472304U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183559A (en) * | 2016-09-27 | 2016-12-07 | 泉州惠安泉创文化用品有限公司 | A kind of compasses with angular surveying |
| CN106904029A (en) * | 2017-01-25 | 2017-06-30 | 东莞产权交易中心 | Multifunctional compasses |
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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: 20150715 Termination date: 20160314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |