CN201769556U - Compasses capable of facilitating radius determination - Google Patents
Compasses capable of facilitating radius determination Download PDFInfo
- Publication number
- CN201769556U CN201769556U CN2010205293133U CN201020529313U CN201769556U CN 201769556 U CN201769556 U CN 201769556U CN 2010205293133 U CN2010205293133 U CN 2010205293133U CN 201020529313 U CN201020529313 U CN 201020529313U CN 201769556 U CN201769556 U CN 201769556U
- Authority
- CN
- China
- Prior art keywords
- ruler
- radius
- compasses
- propelling pencil
- circle
- 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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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses compasses which facilitate radius determination and belongs to a studying appliance. The utility model mainly settles a problem that a ruler is required when a circle with a fixed radius is drawn. The compasses comprise a fixed needle. The utility model is characterized in that: the fixed needle is vertically and fixedly equipped to a zero graduation line position of the ruler; a ruler passes through a rectangular groove provided on a propelling pencil; the propelling pencil is vertically equipped outside the zero graduation line of the ruler; and a set screw is provided outside the rectangular groove. In using, the radius of the circle to be drawn is determined. The propelling pencil is moved to the scale on the ruler through sliding. The circle with the certain radius is drawn while the fixed needle is used as a shaft. The compasses which facilitate radius determination have the following advantages: simple structure and convenient use.
Description
Technical field
The utility model relates to a kind of schooling apparatus, specifically a kind of compasses of being convenient to determine radius.
Background technology
Compasses are drawing instruments of using always, but common compasses if draw the bowlder of certain radius must be by ruler, inconvenience very, and make draw accurate inadequately.
The utility model content
The purpose of this utility model is to determine that for overcoming common compasses picture the circle of radius will provide a kind of compasses of being convenient to determine radius by the shortcoming of ruler that it has characteristics simple in structure, easy to use.
The technical scheme in the invention for solving the technical problem is: a kind of compasses of being convenient to determine radius, comprise locking pin, and it is characterized in that described locking pin vertical fixing is installed in the zero graduation line position of ruler; Ruler passes the rectangular channel that is located on the propelling pencil, and propelling pencil is vertically mounted on beyond the zero graduation line position of ruler, and rectangular channel is provided with a holding screw outward.
The beneficial effects of the utility model are: during use, determining earlier to want the picture radius of a circle, on ruler this scale is arrived in the propelling pencil slippage, tighten holding screw and make propelling pencil be fixed on definite size, is the circle that axle is drawn certain radius with the locking pin.It has characteristics simple in structure, easy to use.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1 locking pin, 2 propelling pencils, 3 rulers, 4 rectangular channels, 5 holding screws.
The specific embodiment
As shown in Figure 1.A kind of compasses of being convenient to determine radius comprise locking pin 1, and described locking pin 1 vertical fixing is installed in the position at the zero graduation line place of ruler 3; Ruler 3 passes the rectangular channel 4 that is located on the propelling pencil 2, and propelling pencil 2 is vertically mounted on beyond the zero graduation line position of ruler 3, and rectangular channel 4 is outer to be provided with a holding screw 5 in order to fixedly propelling pencil 2 and ruler 3.During use, determining earlier to want the picture radius of a circle, on ruler this scale is arrived in propelling pencil 2 slippages, tighten holding screw 5 and make propelling pencil be fixed on definite size, serves as the circle that axle is drawn certain radius with locking pin 1.
The utlity model has characteristics simple in structure, easy to use.
Claims (1)
1. compasses of being convenient to determine radius comprise locking pin, it is characterized in that described locking pin vertical fixing is installed in the zero graduation line position of ruler; Ruler passes the rectangular channel that is located on the propelling pencil, and propelling pencil is vertically mounted on beyond the zero graduation line position of ruler, and rectangular channel is provided with a holding screw outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205293133U CN201769556U (en) | 2010-09-15 | 2010-09-15 | Compasses capable of facilitating radius determination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205293133U CN201769556U (en) | 2010-09-15 | 2010-09-15 | Compasses capable of facilitating radius determination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201769556U true CN201769556U (en) | 2011-03-23 |
Family
ID=43749394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205293133U Expired - Fee Related CN201769556U (en) | 2010-09-15 | 2010-09-15 | Compasses capable of facilitating radius determination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201769556U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267319A (en) * | 2011-08-31 | 2011-12-07 | 崔守孝 | Drawing compass |
| CN102442130A (en) * | 2011-10-22 | 2012-05-09 | 奇瑞汽车股份有限公司 | Graph plotter for plotting circles |
| JP6999884B1 (en) | 2020-08-26 | 2022-01-19 | 清六 牛場 | Stationery for drawing circles, and equipment for drawing circles. |
-
2010
- 2010-09-15 CN CN2010205293133U patent/CN201769556U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267319A (en) * | 2011-08-31 | 2011-12-07 | 崔守孝 | Drawing compass |
| CN102442130A (en) * | 2011-10-22 | 2012-05-09 | 奇瑞汽车股份有限公司 | Graph plotter for plotting circles |
| JP6999884B1 (en) | 2020-08-26 | 2022-01-19 | 清六 牛場 | Stationery for drawing circles, and equipment for drawing circles. |
| JP2022039878A (en) * | 2020-08-26 | 2022-03-10 | 清六 牛場 | Circle drawing stationery and circle drawing tool |
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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: 20110323 Termination date: 20110915 |