CN2166969Y - Compass with ruler - Google Patents
Compass with ruler Download PDFInfo
- Publication number
- CN2166969Y CN2166969Y CN 93221600 CN93221600U CN2166969Y CN 2166969 Y CN2166969 Y CN 2166969Y CN 93221600 CN93221600 CN 93221600 CN 93221600 U CN93221600 U CN 93221600U CN 2166969 Y CN2166969 Y CN 2166969Y
- Authority
- CN
- China
- Prior art keywords
- compasses
- utility
- control ruler
- ruler
- chi
- 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
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a teaching appliance, more specifically a pair of compasses with a control ruler. The utility model comprises a pair of compasses and a control ruler, wherein, a left and a right positioning pins of socketed legs of the compasses are parallel to each other, and the control ruler marked with scales is installed on either socketed leg through a shaft and can be rotated around the shaft. The control ruler can be rotated till being vertical to the positioning pins, and when the control ruler is vertical to the positioning pins, a scale '0' on the control ruler is positioned on the just top of the positioning pins. The utility model measures out directly the radius of circle needed to be drawn on a circle and has the advantages of high accuracy, no error and easy use; when not in use, the control ruler can be folded onto the compass body, and the utility model is used as a pair of general compasses.
Description
The utility model relates to a kind of teaching aid, specifically, is a kind of Compass with ruler.
In the prior art, Chinese patent CN2091772U has announced a kind of " band scale compasses ", it is equipped with scale at a pin of compasses, on the another pin pointer is housed, it can directly make the circle of required radius, and not the time spent, scale goes to the position parallel with compass foot, its shortcoming is: the contrast of having done radius of a circle and scale label is not direct, and error is bigger.
The purpose of this utility model is to provide a kind of nuclear chi and the radius of circle of doing directly to contrast free from error Compass with ruler.
For achieving the above object, the utility model adopts as technical scheme: it comprises compasses and nuclear chi, the left and right rule pin pilot pin of compasses is parallel to each other, the nuclear chi that indicates size is installed on arbitrary rule pin by axle, can pivot, the nuclear chi can rotate to vertical mutually with pilot pin, and when the nuclear chi was vertical mutually with pilot pin, the size on it " 0 " mark was directly over pilot pin.
The utility model compared with prior art has following advantage:
1, directly on circle, measure the radius of a circle of required picture, the accuracy height, error free;
2, the time spent can not rolled over the nuclear chi and made common compasses to the compasses body and use, and is easy to use.
Accompanying drawing is the utility model structural representation.
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in the figure, the utility model comprises compasses (1) and nuclear chi (4), the left and right rule pin pilot pin (2) of compasses (1), (3) are parallel to each other, indicate the nuclear chi (4) of size, be installed on arbitrary rule pin (6) by axle (5), can be around axle (5) rotation, nuclear chi (4) can rotate to mutual vertical with pilot pin (2), (3), when nuclear chi (4) was vertical mutually with pilot pin (2), (3), the size on it " 0 " mark was directly over pilot pin (2).
Claims (1)
1, a kind of Compass with ruler, it comprises compasses and nuclear chi, it is characterized in that: the left and right rule pin pilot pin (2) of compasses (1), (3) are parallel to each other, the nuclear chi (4) that indicates size is installed on arbitrary rule pin (6) by axle (5), can rotate around axle (5), nuclear chi (4) can rotate to vertical mutually with pilot pin (2), (3), examines chi (4) with pilot pin (2), when (3) are mutual vertical, and the size on it " 0 " mark is directly over pilot pin (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93221600 CN2166969Y (en) | 1993-08-11 | 1993-08-11 | Compass with ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93221600 CN2166969Y (en) | 1993-08-11 | 1993-08-11 | Compass with ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2166969Y true CN2166969Y (en) | 1994-06-01 |
Family
ID=33800406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93221600 Expired - Fee Related CN2166969Y (en) | 1993-08-11 | 1993-08-11 | Compass with ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2166969Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407313A (en) * | 2013-07-31 | 2013-11-27 | 成都理工大学 | Multifunctional compass |
| CN104019718A (en) * | 2014-06-23 | 2014-09-03 | 深圳供电局有限公司 | Cable middle head deviation measuring instrument and method for measuring cable middle head deviation |
-
1993
- 1993-08-11 CN CN 93221600 patent/CN2166969Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407313A (en) * | 2013-07-31 | 2013-11-27 | 成都理工大学 | Multifunctional compass |
| CN104019718A (en) * | 2014-06-23 | 2014-09-03 | 深圳供电局有限公司 | Cable middle head deviation measuring instrument and method for measuring cable middle head deviation |
| CN104019718B (en) * | 2014-06-23 | 2017-01-25 | 深圳供电局有限公司 | Cable middle head deviation measuring instrument and method for measuring cable middle head deviation |
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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 |