CN202573504U - Compass capable of scribing straight lines - Google Patents
Compass capable of scribing straight lines Download PDFInfo
- Publication number
- CN202573504U CN202573504U CN 201220269734 CN201220269734U CN202573504U CN 202573504 U CN202573504 U CN 202573504U CN 201220269734 CN201220269734 CN 201220269734 CN 201220269734 U CN201220269734 U CN 201220269734U CN 202573504 U CN202573504 U CN 202573504U
- Authority
- CN
- China
- Prior art keywords
- ruler
- pen cap
- scribing
- compasses
- straight line
- 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 discloses a compass capable of scribing straight lines. The compass comprises a positioning needle and a pen socket and is characterized in that the positioning needle is vertically fixed at the left end of a straight ruler; and the straight ruler is provided with a bar-type hole along the centerline, the pen sleeve is vertically inserted into the bar-type hole of the straight ruler, a positioning board is fixed at the outer side of the pen socket, and a positioning bolt is arranged on the positioning board. The compass capable of scribing the straight line, disclosed by the utility model, is simple in structure, convenient to use, capable of scribing circles with different diameters and scribing straight lines when being used as the straight ruler and particularly brings convenience for students to learn and use.
Description
Technical field
The utility model relates to a kind of improvement of compasses, belongs to the student and uses stationery, the specifically a kind of compasses that can draw straight line.
Background technology
Compasses are a kind of schooling apparatus that students use always.Present employed compasses comprise the fixed point leg and rotate leg that the fixed point leg is articulated as one with the upper end of rotating leg; And be provided with handle; Lower end at the fixed point leg is provided with pilot pin, is provided with the pen cap in the lower end of rotating leg, and chalk inserts in the pen cap; This compasses can mark the circle of different radii.The deficiency of this compasses is: the one, and complex structure; The 2nd, can not be as ruler with drawing straight line.
Summary of the invention
It is a kind of simple in structure, easy to use that the purpose of the utility model is to provide, and can draw the circle of different-diameter, can also make things convenient for the student to learn the compasses that can draw straight line of usefulness especially as ruler with drawing straight line.
In order to reach above purpose, the technical scheme that the utility model adopted is: this can draw the compasses of straight line, comprises the pilot pin and the pen cap, it is characterized in that: the left end that is fixed on ruler that described pilot pin is vertical; Center line along ruler is provided with bar hole, and the pen cap vertically inserts in the bar hole of ruler, can in bar hole, slide; Through sliding, can mark straight line, fix location-plate in the outside of the pen cap; On location-plate, be provided with bolt; Slide into needed position through the pen cap, fix through bolt again, can adjust and draw radius of a circle.
The utility model is also implemented through following measure: described pen cap bottom is provided with clamping plate, through clamping plate and location-plate the pen cap is clamped on the ruler and slides.
The beneficial effect of the utility model is: compares with the compasses that present student uses, and simple in structure, easy to use, can draw the circle of different-diameter, can also make things convenient for the student to learn to use especially as ruler with drawing a straight line.
Description of drawings
Fig. 1 is the structure front-view schematic diagram of the utility model;
Fig. 2 is the structure schematic top plan view of the utility model.
Among the figure: 1, pilot pin; 2, the pen cap; 3, ruler; 4, bar hole; 5, location-plate; 6, bolt; 7, clamping plate.
The specific embodiment
Make the utility model with reference to Fig. 1, Fig. 2.The compasses that this can draw straight line comprise the pilot pin 1 and the pen cap 2, it is characterized in that: the left end that is fixed on ruler 3 that described pilot pin 1 is vertical; Center line along ruler 3 is provided with bar hole 4, in the bar hole 4 of the pen cap 2 vertical insertion rulers 3, can in bar hole 4, slide; Through sliding, can mark straight line, fix location-plate 5 in the outside of the pen cap 2; On location-plate 5, be provided with bolt 6; Slide into needed position through the pen cap 2, fixing through bolt 6 again, can adjust and draw radius of a circle.
Improvement as the utility model: the described pen cap 2 bottoms are provided with clamping plate 7, the pen cap 2 are clamped on the ruler 3 with location-plate 5 through clamping plate 7 and slide.
Claims (2)
1. can draw the compasses of straight line, comprise the pilot pin (1) and the pen cap (2), it is characterized in that: the left end that is fixed on ruler (3) that described pilot pin (1) is vertical; Center line along ruler (3) is provided with bar hole (4), and the pen cap (2) vertically inserts in the bar hole (4) of ruler (3), and the fixing location-plate (5) of going up is provided with bolt (6) on location-plate (5) in the outside of the pen cap (2).
2. the compasses that can draw straight line according to claim 1 is characterized in that: the described pen cap (2) bottom is provided with clamping plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269734 CN202573504U (en) | 2012-06-08 | 2012-06-08 | Compass capable of scribing straight lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269734 CN202573504U (en) | 2012-06-08 | 2012-06-08 | Compass capable of scribing straight lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202573504U true CN202573504U (en) | 2012-12-05 |
Family
ID=47242949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220269734 Expired - Fee Related CN202573504U (en) | 2012-06-08 | 2012-06-08 | Compass capable of scribing straight lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202573504U (en) |
-
2012
- 2012-06-08 CN CN 201220269734 patent/CN202573504U/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: 20121205 Termination date: 20130608 |