CN2936783Y - Compasses with scale - Google Patents
Compasses with scale Download PDFInfo
- Publication number
- CN2936783Y CN2936783Y CN 200620130718 CN200620130718U CN2936783Y CN 2936783 Y CN2936783 Y CN 2936783Y CN 200620130718 CN200620130718 CN 200620130718 CN 200620130718 U CN200620130718 U CN 200620130718U CN 2936783 Y CN2936783 Y CN 2936783Y
- Authority
- CN
- China
- Prior art keywords
- compass
- compasses
- compass foot
- driving gear
- foot retainer
- 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 relates to a compasses with a scale, wherein, the both feet of the compasses are parallel to each other and are suited in the compasses feet holding frame with a cross section being shaped as a Chinese character ''Ao'', the dimension scaling line is respectively arranged on the top of the compasses feet holding frame and the compasses feet, a plurality of sliding paths are respectively positioned in the both sides of the middle groove in the compasses feet holding frame, the both feet of the compasses are slid and matched with the sliding paths, a plurality of writing pens are positioned at the inner side of both compasses feet outer end, a driving gear is positioned in the middle of the compasses feet holding frame, the two opposite faces of both compasses feet are driven gear face geared with the driving gear, a knob fixed with the driving gear shaft is positioned in the top center of the compasses feet holding frame, and a circle centre positioning pin fixed with the driving gear shaft is positioned in the middle of the compasses feet holding frame bottom side. When a circle is drawn, the utility model is pressed closely to the writing plane, the operation is convenient, the circle can be measured as drawing a circle, and the operation performance is relatively all-sided.
Description
Technical field
The utility model belongs to the improvement of compasses structure, particularly is with Graduated compasses.
Background technology
At present, the compasses of drawing usefulness or compasses, a compass foot end is installed with pilot pin, and another compass foot end is installed with chalk, pencil or duckbilled nib.After the picture bowlder is found the center of circle accurately with pilot pin, get final product around the pilot pin rotation with hand propelled another compass foot.Because existing compasses are commonly the A font structure that two compass foot tops link to each other, the link of two compass foots is away from the drawing writing surface during drawing, and when particularly drawing on blackboard, mapping operation is very inconvenient.In addition, existing compasses generally can only be used for picture circle, know that if desired drawn diameter of a circle also needs to measure with ruler, and function of use is single.
The utility model content
The purpose of this utility model is to provide a kind of band Graduated compasses, and is not only simple in structure, is easy to make, and draw the bowlder compasses writing surface of pressing close to draw, and easy to operate, when drawing circle, can also know the size of drawn circle, need not to measure with ruler more in addition, function of use is comparatively comprehensive.
The purpose of this utility model is achieved in that a kind of band Graduated compasses, comprise two compass foots, these two compass foots spacer sleeve that is parallel to each other is contained in the compass foot retainer, the size scale line is being set respectively on the end face of compass foot retainer and two compass foots, the cross section of compass foot retainer is concave shape, the middle part, bottom surface of compass foot retainer is being provided with an open slot that vertically connects, two compass foot slideways are being set respectively in the compass foot retainer of these open slot both sides, two compass foots and two compass foot slideways are slidingly matched respectively, the inboard, outer end of two compass foots is being provided with the writing on the blackboard nib that can slide respectively in open slot, in the middle part of compass foot retainer, driving gear is being set, two compass foot two opposite surfaces are respectively driven rack surface, the lip-deep driven tooth of two driven tooth bars meshes with driving gear respectively, end face middle part at the compass foot retainer is being provided with the knob that is fixed together with the driving gear rotating shaft, at the middle part, bottom surface of compass foot retainer the center of circle pilot pin that is fixed together with the driving gear rotating shaft is being set.
When the utility model uses, can drive the driving gear rotation by the rotation knob, drive two compass foots by driven rack surface again during the driving gear rotation and make stretching motion respectively along two compass foot slideways in the compass foot retainer, owing on the end face of compass foot retainer and two compass foots the size scale line is being set respectively, so just can in time knowing diameter of a circle or the radius size that to draw.After finding the center of circle accurately, can be by the writing on the blackboard nib that is installed in inboard, two the compass foot outer ends circle that size dimension determines that draws with the utility model compass foot retainer around center of circle pilot pin rotation.The utility model is not only simple in structure, is easy to make, and draws the bowlder compasses writing surface of pressing close to draw, when the blackboard upper drawing circle, it is especially convenient to operate, and can also know the size of drawn circle when drawing circle, need not to measure with ruler more in addition, function of use is comparatively comprehensive.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a main TV structure schematic diagram of the present utility model;
Fig. 2 is the part section structural representation of overlooking of the present utility model;
Fig. 3 is a side-looking structural representation of the present utility model;
Fig. 4 is the side-looking structural representation of the another kind of embodiment of the utility model.
The specific embodiment
A kind of band Graduated compasses, as Fig. 1, Fig. 2, shown in Figure 3, comprise two compass foots 2,6, these two compass foots 2,6 spacer sleeve that is parallel to each other is contained in the compass foot retainer 3, on the end face of compass foot retainer 3 and two compass foots 2,6 the size scale line is being set respectively, can in time know diameter of a circle or the radius size that will draw by the size scale line, compass foot retainer 3 and two compass foots 2,6 can adopt engineering plastics or organic plastics to constitute.As shown in Figure 3, Figure 4, the cross section of compass foot retainer 3 is concave shape, the middle part, bottom surface of compass foot retainer 3 is being provided with an open slot 11 that vertically connects, two compass foot slideways 10 are being set respectively in the compass foot retainer 3 of these open slot 11 both sides, and the cross section of compass foot slideway 10 is concave shape or triangle.Two compass foots 2,6 and two compass foot slideways 10 are slidingly matched respectively.The inboard, outer end of two compass foots 2,6 is being provided with the writing on the blackboard nib 1,7 that can slide respectively in open slot 11, writing on the blackboard nib 1,7 can be chalk, pencil or ruling pen.Driving gear 9 is being set in the middle part of compass foot retainer 3, two compass foot 2,6 two opposite surfaces are respectively driven rack surface, the lip-deep driven tooth of two driven tooth bars meshes with driving gear 9 respectively, end face middle part at compass foot retainer 3 is being provided with the knob 5 that is fixed together with driving gear 9 rotating shafts, at the middle part, bottom surface of compass foot retainer 3 center of circle pilot pin 8 that is fixed together with driving gear 9 rotating shafts is being set.Rotation knob 5 can drive two compass foots 2,6 with driven tooth surface by driving gear 9 and carry out the picture circle along the compass foot slideway 10 in the compass foot retainer 3 as stretching motion.
In addition, in order to make the utility model carry out angular surveying easily, respectively affixed two protractors 4 on compass foot retainer 3 both ends of the surface of knob 5 both sides, the plane at two protractor 4 places parallels with the axis of compass foot retainer 3 respectively, is positioned on 3 liang of vertical surfaces of compass foot retainer on same plane with two protractors 4 the size scale line also is being set respectively.
Claims (2)
1, a kind of band Graduated compasses, comprise two compass foots (2,6), it is characterized in that: these two compass foots (2,6) spacer sleeve that is parallel to each other is contained in the compass foot retainer (3), compass foot retainer (3) and two compass foots (2, the size scale line is being set respectively on the end face 6), the cross section of compass foot retainer (3) is concave shape, the middle part, bottom surface of compass foot retainer (3) is being provided with an open slot (11) that vertically connects, in the compass foot retainer (3) of this open slot (11) both sides two compass foot slideways (10) are being set respectively, two compass foots (2,6) be slidingly matched respectively with two compass foot slideways (10), two compass foots (2,6) inboard, outer end is being provided with the writing on the blackboard nib (1 that can slide respectively in open slot (11), 7), driving gear (9) is being set in the middle part of compass foot retainer (3), two compass foots (2,6) two opposite surfaces is respectively driven rack surface, the lip-deep driven tooth of two driven tooth bars meshes with driving gear (9) respectively, end face middle part at compass foot retainer (3) is being provided with the knob (5) that is fixed together with driving gear (9) rotating shaft, at the middle part, bottom surface of compass foot retainer (3) center of circle pilot pin (8) that is fixed together with driving gear (9) rotating shaft is being set.
2, band Graduated compasses according to claim 1, it is characterized in that: respectively affixed two protractors (4) on compass foot retainer (3) both ends of the surface of knob (5) both sides, the plane at two protractors (4) place parallels with the axis of compass foot retainer (3) respectively, is positioned on compass foot retainer (3) two vertical surfaces on same plane with two protractors (4) the size scale line also is being set respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620130718 CN2936783Y (en) | 2006-07-25 | 2006-07-25 | Compasses with scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620130718 CN2936783Y (en) | 2006-07-25 | 2006-07-25 | Compasses with scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2936783Y true CN2936783Y (en) | 2007-08-22 |
Family
ID=38360802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620130718 Expired - Fee Related CN2936783Y (en) | 2006-07-25 | 2006-07-25 | Compasses with scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2936783Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371823A (en) * | 2010-08-04 | 2012-03-14 | 陈沈洋 | Cursor-sucker teaching compasses |
| CN103383231A (en) * | 2013-07-22 | 2013-11-06 | 南京三邦金属复合材料有限公司 | Expansion joint inner diameter measuring device |
| CN104527272A (en) * | 2014-12-11 | 2015-04-22 | 苏州市职业大学 | Napier's compasses |
| CN105150726A (en) * | 2015-09-30 | 2015-12-16 | 徐州工业职业技术学院 | Multifunctional teaching aid |
| CN108297580A (en) * | 2018-01-31 | 2018-07-20 | 陕西工业职业技术学院 | A kind of scalable amount divider calipers |
| CN108656801A (en) * | 2018-05-08 | 2018-10-16 | 吴烁 | A kind of mathematical education auxiliary teaching device applied to education and instruction |
-
2006
- 2006-07-25 CN CN 200620130718 patent/CN2936783Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371823A (en) * | 2010-08-04 | 2012-03-14 | 陈沈洋 | Cursor-sucker teaching compasses |
| CN103383231A (en) * | 2013-07-22 | 2013-11-06 | 南京三邦金属复合材料有限公司 | Expansion joint inner diameter measuring device |
| CN104527272A (en) * | 2014-12-11 | 2015-04-22 | 苏州市职业大学 | Napier's compasses |
| CN104527272B (en) * | 2014-12-11 | 2016-06-08 | 苏州市职业大学 | A kind of Napier's compasses |
| CN105150726A (en) * | 2015-09-30 | 2015-12-16 | 徐州工业职业技术学院 | Multifunctional teaching aid |
| CN108297580A (en) * | 2018-01-31 | 2018-07-20 | 陕西工业职业技术学院 | A kind of scalable amount divider calipers |
| CN108656801A (en) * | 2018-05-08 | 2018-10-16 | 吴烁 | A kind of mathematical education auxiliary teaching device applied to education and instruction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |