CN202163183U - Compasses with telescoping flexible ruler - Google Patents
Compasses with telescoping flexible ruler Download PDFInfo
- Publication number
- CN202163183U CN202163183U CN2011201384481U CN201120138448U CN202163183U CN 202163183 U CN202163183 U CN 202163183U CN 2011201384481 U CN2011201384481 U CN 2011201384481U CN 201120138448 U CN201120138448 U CN 201120138448U CN 202163183 U CN202163183 U CN 202163183U
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- CN
- China
- Prior art keywords
- compasses
- flexible ruler
- circle
- legs
- ruler
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a pair of compasses with a telescoping flexible ruler, and the pair of compasses can directly set the radius of a circle and can be used as a ruler. The pair of compasses is characterized in that a small flexible ruler box is arranged on the intersection of the two legs of common teaching compasses, and the flexible ruler extends along the inner side of a fixed leg of the compasses to the tip of the fixed leg, penetrates through a pulley arranged on the tip, and then is connected to a pen cap on a rotary leg of the compasses. When the two legs are apart, the flexible ruler is drawn out; and when the two legs are drawn together, the flexible ruler under the effect of a reel spring is withdrawn. Compared with conventional teaching compasses, the pair of compasses disclosed in the utility model can directly determine the radius circle drawn, since a small flexible ruler provided can be drawn out when the legs of the compasses are pulled apart, and draw the circle by rotating the compasses. The operation is rapid and convenient. After a circle is drawn, the flexible ruler can be automatically withdrawn when the legs are pulled together, thereby greatly improving drawing efficiency.
Description
One, technical field
The utility model relates to a kind of teaching aid articles for use, specifically is a kind of compasses with flexible soft ruler.
Two, prior art
Existing common teaching, it generally has only the function of picture circle, on compasses, indicates rule in addition exactly; Radius of a circle be can not indicate at the picture bowlder, need the good radius of amount, the distance of regulating the compasses bipod be again come with chi; So just cumbersome, also wasted the time of mapping.
Three, summary of the invention
The purpose of the utility model is the deficiency to prior art, and a kind of compasses that can set required picture radius of a circle immediately and can be used for measuring the band flexible soft ruler of length are provided.
The utility model is realized with following technical proposal:
The utility model is on the crosspoint of two pin of original common educational compasses, a small-sized flexible rule box to be set; Tape is inboard until on the needle point of fixing feet along the fixing feet of compasses, passes then on the pen clip of the rotation pin that is fixed to compasses behind the truckle that is arranged on needle point again.When separating two pin of compasses, can pull out tape simultaneously, when closing up the bipod of compasses, tape can rolling under the effect of spool clockwork spring.
The utility model is compared with existing educational compasses, owing to be provided with small-sized flexible tope, is drawing bowlder when separating the compasses bipod, and tape is drawn out, and can directly determine the picture radius of a circle, rotates the compasses circle that can draw then, and is convenient and swift.After finishing circle, close the compasses bipod, tape can be packed up automatically.So just improved the efficient of drawing.
Four, description of drawings
Further specify below in conjunction with accompanying drawing and enforcement utility model,
Fig. 1 is the utility model structural representation
(1) is small-sized flexible rule box among Fig. 1, and (2) are the rotation pin of compasses, and (3) are pen clip, and (4) are the tape head, and (5) are tape, and (6) are truckle, and (7) are the needle point of fixing feet, and (8) are the fixing feet of compasses.
Five, the specific embodiment
As shown in Figure 1; The utility model mainly comprises small-sized flexible rule box (1), truckle (3), tape head (4) and tape (5); It is characterized in that: small-sized flexible rule box (1) is fixed on the crosspoint of fixing feet (8) of rotation pin (2) and compasses of compasses, and the fixing feet (8) that the tape head (4) of the tape (5) of small-sized flexible rule box (1) the inside is pulled out along compasses decides through being arranged on circle that the truckle (6) on (7) is fixed on the pen clip (3) again on the needle point of pin.
Claims (2)
1. the compasses with flexible soft ruler mainly comprise small-sized flexible rule box (1), truckle (3), tape head (4) and tape (5); It is characterized in that: flexible rule box (1) is fixed on the crosspoint of fixing feet (8) of rotation pin (2) and compasses of compasses, and the fixing feet (8) that the tape head (4) of the tape (5) of small-sized flexible rule box (1) the inside is pulled out along compasses decides through being arranged on circle that the truckle (6) on (7) is fixed on the pen clip (3) again on the needle point of pin.
2. according to the described a kind of compasses of claim 1, it is characterized in that small-sized tape measure closes any position that (1) can be arranged on the fixing feet (8) of compasses with flexible soft ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201384481U CN202163183U (en) | 2011-05-04 | 2011-05-04 | Compasses with telescoping flexible ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201384481U CN202163183U (en) | 2011-05-04 | 2011-05-04 | Compasses with telescoping flexible ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202163183U true CN202163183U (en) | 2012-03-14 |
Family
ID=45799033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201384481U Expired - Fee Related CN202163183U (en) | 2011-05-04 | 2011-05-04 | Compasses with telescoping flexible ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202163183U (en) |
-
2011
- 2011-05-04 CN CN2011201384481U patent/CN202163183U/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: 20120314 Termination date: 20120504 |