CN2054404U - Multipurpose teaching compasses - Google Patents
Multipurpose teaching compasses Download PDFInfo
- Publication number
- CN2054404U CN2054404U CN 89211283 CN89211283U CN2054404U CN 2054404 U CN2054404 U CN 2054404U CN 89211283 CN89211283 CN 89211283 CN 89211283 U CN89211283 U CN 89211283U CN 2054404 U CN2054404 U CN 2054404U
- Authority
- CN
- China
- Prior art keywords
- compasses
- main scale
- ruler
- secondary chi
- processed
- 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.)
- Withdrawn
Links
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to multi-purpose teaching compasses which can be used as a straightedge, a ferule, a protractor and compasses for teaching, belonging to a teaching appliance which is one device with multiple purposes. The utility model is mainly composed of a main ruler and an auxiliary ruler; the body of the main ruler is provided with straightedge scale lines, the front end of the main ruler is processed with a chalk hole in which a chalk pushing pin is arranged, and at connected position of the back end of the main ruler with the auxiliary ruler is engraved with angle measurement scale lines; the body of the auxiliary ruler is also engraved with corresponding straightedge scale lines, and the front end of the auxiliary ruler is processed with a telescopic hole for the legs of the compasses; the legs of the compasses are arranged in the telescopic hole. The multi-purpose teaching compasses can realize one device with the multiple purposes of a short ruler, the long ruler, the ferule, the protractor and the compasses. The utility model has the advantages of simple structure and low cost; a great amount of materials can be saved, and the outlay and the expenditure of the teaching appliances can be reduced.
Description
The utility model multipurpose educational compasses can be done teaching with ruler, teacher's pointer, protractor, compasses, is the teaching aid of multi-use.
Existing educational aid can only singlely use, and during old compasses construction slightly one firmly chalk have no progeny and can't take out, waste class period and the rule pin iron nail student that often damages, drawing the draw summit of two oblique line relief angles, angle with set square when the teacher maps usually will retouch accurate mapping again and will use set square ruler, the multiple educational aid of compasses protractor just can finish algebraically, geometric construction, thereby the teacher will be with several teaching aids on class simultaneously, mapping constantly the transposing drawing tool, carry, use very inconvenient.
The purpose of this utility model provides a kind of multipurpose educational compasses, has realized that same teaching aid can make short chi, long chi, teacher's pointer, protractor, compasses multi-use purpose simultaneously, and is easy to carry, uses flexibly, reliably.
Multipurpose educational compasses is taked to realize with upper type: primary structure is by main scale, secondary chi constitutes, be carved with 0～25 centimetre of ruler graduation mark on the main scale blade, the main scale front end is processed with the chalk jack, chalk is housed in the jack releases the tip, the main scale rear end combines assembling place and is carved with 30 ° with secondary chi, 45 °, 60 °, 90 °, 120 °, 135 °, 150 ° are waited the angle measuring calibration line, and be processed with connecting hole, be carved with 25～60 centimetres of ruler graduation marks on the secondary chi blade, secondary chi front end is processed with the compass foot telescopic hole, compass foot is housed in the telescopic hole, compass foot has the compasses tiptoe, handgrip, secondary chi rear end and the assembling of main scale rear end have prong, are processed with connecting hole, be convenient to the clamping rotation, main scale and secondary chi adopt the hold-down screw clamping, and adjusting knob is housed, can be according to using actual needs to regulate degree of tightness.
Multipurpose educational compasses main scale and secondary chi can adopt timber or plastics to make.
During use when main scale and secondary chi close up as 25 centimetres of ruler usefulness, secondary chi is rotated counterclockwise 180 °, and to screw screw be 60 centimetres of rulers, can be used as teacher's pointer and use this moment.Continue to be rotated counterclockwise secondary chi, two rulers can directly constitute 30 °, 45 °, 60 °, 90 °, 120 °, 135 °, 150 ° angles, and the user is with the very convenient required angle of drawing.
Secondary chi and main scale are merged, release the garden rule pin on the secondary chi, and turn right 90 ° fixing, the chalk of packing in the main scale end chalk jack rule use of just can mapping is in case when chalk breaks in pin rule, can use chalk to release the tip, conveniently the remaining chalk head of release.
Multipurpose educational compasses is that in great shortage and former educational aid uses inconvenience to carry the practical teaching aid that trouble designs invention owing to market compasses for many years.It has realized short chi (25 centimetres), the purpose of long chi (60 centimetres), teacher's pointer, protractor, compasses multi-use.There is chalk to release the tip on the main scale of multipurpose educational compasses, when breaking in pin rule, chalk can conveniently release, on the secondary chi compass foot telescopic hole is arranged, but in the secondary chi of iron nail retraction at ordinary times, eliminated the disadvantage that iron nail is hurted sb.'s feelings, the multipurpose educational compasses multi-use, simple in structure, cost is low again, not only can be country and saves a large amount of valuable timber, has reduced a large amount of teaching aid funds spendings again.
The utility model is described in further detail below with reference to accompanying drawing.
Fig. 1 is a multipurpose educational compasses main scale front view.
Fig. 2 is a multipurpose educational compasses main scale vertical view.
Fig. 3 is the secondary chi front view of multipurpose educational compasses.
Fig. 4 is the multipurpose educational compasses structural representation.
Fig. 5 is the multipurpose educational compasses structural representation
Constitute by main scale (1), secondary chi (2) with reference to accompanying drawing multipurpose educational compasses primary structure.Be carved with 0～25 centimetre of ruler graduation mark on the main scale blade (3), the main scale front end is processed with chalk jack (4), chalk is housed in the hole releases the tip (9), main scale rear end (5) is carved with 30 ° with secondary chi junction, 45 °, 60 °, 90 °, 120 °, 135 °, 150 ° are waited the angle measuring calibration line, and be processed with connecting hole, be carved with 25～60 centimetres of ruler graduation marks on secondary chi (2) blade (6), secondary chi front end is processed with compass foot telescopic hole (8), compass foot (11) is housed in the telescopic hole, compass foot has the compasses tiptoe, handgrip, secondary chi rear end (7) has prong with main scale rear end assembling place, be processed with connecting hole, be convenient to the clamping rotation, main scale and secondary chi adopt the hold-down screw clamping, and can regulate structure tightness between the major-minor chi as required with adjusting knob (12).
Claims (2)
1, a kind of multipurpose educational compasses with main scale, secondary chi, it is characterized in that being carved with the ruler graduation mark on the main scale blade, the main scale front end is processed with the chalk jack, chalk is housed in the jack releases the tip, the angle measuring calibration line is carved with in main scale rear end and secondary chi junction, and is processed with connecting hole; Be carved with the ruler graduation mark on the secondary chi blade, secondary chi front end is processed with the compass foot telescopic hole; Compass foot is housed in the telescopic hole, and compass foot has compasses tiptoe, handgrip, secondary chi rear end and main scale rear end assembling place and has prong, is processed with connecting hole; Main scale and secondary chi adopt the hold-down screw clamping, and adjusting knob is housed.
2, multipurpose educational compasses according to claim 1 is characterized in that main scale and secondary chi can adopt timber or plastics to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89211283 CN2054404U (en) | 1989-04-11 | 1989-04-11 | Multipurpose teaching compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89211283 CN2054404U (en) | 1989-04-11 | 1989-04-11 | Multipurpose teaching compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2054404U true CN2054404U (en) | 1990-03-14 |
Family
ID=4867567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89211283 Withdrawn CN2054404U (en) | 1989-04-11 | 1989-04-11 | Multipurpose teaching compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2054404U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760449A (en) * | 2015-04-21 | 2015-07-08 | 上海理工大学 | Compasses |
| CN109017057A (en) * | 2018-07-18 | 2018-12-18 | 枣庄度秘信息科技有限公司 | A kind of compass for math teaching |
-
1989
- 1989-04-11 CN CN 89211283 patent/CN2054404U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760449A (en) * | 2015-04-21 | 2015-07-08 | 上海理工大学 | Compasses |
| CN104760449B (en) * | 2015-04-21 | 2016-09-28 | 上海理工大学 | Compasses |
| CN109017057A (en) * | 2018-07-18 | 2018-12-18 | 枣庄度秘信息科技有限公司 | A kind of compass for math teaching |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2000009346A1 (en) | Multi-purpose, multi-functional tool | |
| CN201646147U (en) | Multipurpose ruler-compass for teaching | |
| CN2054404U (en) | Multipurpose teaching compasses | |
| US4007542A (en) | Straightedge | |
| CN214027978U (en) | Primary school mathematics ruler | |
| CN201095247Y (en) | Multifunctional folding teaching aid | |
| CN204367706U (en) | A kind of multifunctional ruler | |
| CN213947976U (en) | Drawing teaching aid for students | |
| CN2299723Y (en) | Multi-functional ruler | |
| CN2357928Y (en) | Multifunctional teaching triangle | |
| CN2269317Y (en) | Universal ruler | |
| CN219382061U (en) | Multipurpose ruler-compass combined device | |
| CN215662689U (en) | Multifunctional ink-non-sticking ruler | |
| CN216545475U (en) | Ruler capable of accurately drawing angles | |
| CN2159883Y (en) | Multipurpose compasses | |
| CN216993693U (en) | Pen with graduated scale | |
| CN210881462U (en) | Ruler and compasses combined stationery | |
| CN2166976Y (en) | Multi-purpose compass for drawing for teacher use | |
| CN2130704Y (en) | Multipurpose gauge | |
| CN2163364Y (en) | Mobile angle rule | |
| CN2176534Y (en) | Multifunctional ruler for pupils | |
| CN2268634Y (en) | Combination of compass and trangle | |
| CN205523259U (en) | Multifunctional drawing teaching aid | |
| CN2224096Y (en) | Multi-purpose writing materials for students | |
| CN201291682Y (en) | Compasses with ruler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |