CN203246224U - Combined compasses - Google Patents
Combined compasses Download PDFInfo
- Publication number
- CN203246224U CN203246224U CN 201320194985 CN201320194985U CN203246224U CN 203246224 U CN203246224 U CN 203246224U CN 201320194985 CN201320194985 CN 201320194985 CN 201320194985 U CN201320194985 U CN 201320194985U CN 203246224 U CN203246224 U CN 203246224U
- Authority
- CN
- China
- Prior art keywords
- protractor
- ruler
- circular
- compasses
- center
- 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 pair of combined compasses. The pair of combined compasses is composed of a protractor, a ruler, a fixing device and a pencil stub. A dividing ruler is arranged at the lower end of the protractor, a circular boss is arranged on the upper portion of the protractor, and the inner portion of the protractor is provided with a rotary board connected with the protractor through a hinge. One end of the ruler is of a pointed shape and a sliding groove and a circular hole are formed in a ruler body. The fixing device is circular, a circular hole is formed in the center of the fixing device, and the fixing device is placed in the rotary board of the protractor and the sliding groove of the ruler body. The pencil stub is installed in the circular hole of the fixing device. According to the combined compasses, the drawing distance can be selected when drawing is conducted, the angle of drawing can be chosen, the compasses can be detached and used independently, and the pair of combined compasses is novel in design, reasonable in structure, suitable for most people and wide in market prospect.
Description
Technical field
The utility model relates to a kind of compasses, especially a kind of Combined compasses.
Background technology
Compasses are instruments of picture circle and circular arc.It is lever, also is wheel shaft, generally makes with metal or plastics.It is made of hinge of two parts connection, wherein can adjust.Compasses divide again common compasses, bow-spring compasses, drop bow, trammel etc., are one of indispensable instruments in our office, study.
The appearance of compasses has solved the problem of drawing circle and circular arc, but still needs to measure the mapping distance during mapping, but also can not select voluntarily the angle of picture arc, brings in use unnecessary trouble to people.
The utility model content
For above problem, the purpose of this utility model is to provide a kind of Combined compasses, and it is combined by protractor and ruler, can choose and make the angle that map distance can also be chosen mapping, has effectively solved the problems referred to above.
In order to realize that the technical scheme that the purpose of this utility model adopts is: a kind of Combined compasses is characterized in that: it is made of protractor, ruler, fixator, pencil stub; Described protractor lower end is provided with rule, and top is provided with round boss, and inside is provided with the swivel plate that links to each other by hinge; Described ruler has an end to become pointed, and blade is provided with chute and circular port; Described fixator is circular, and there is circular port in central authorities, is placed in the chute of the swivel plate of protractor and blade; Described pencil stub is installed in the circular port of fixator.
The beneficial effects of the utility model are: can when mapping, choose the distance of mapping, can choose again the angle of mapping, and can also split independent use, and modern design, rational in infrastructure, be fit to most of crowds, have wide market prospects.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model front view.
Fig. 2 is the structure chart of protractor.
1-swivel plate, 2-protractor, 3-pencil stub, 4-ruler, 5-round boss, 6-fixator among the figure.
The specific embodiment
In Fig. 1, the first example shown in Figure 2, a kind of Combined compasses is characterized in that: it is made of protractor, ruler, fixator, pencil stub; Described protractor lower end is provided with rule, and top is provided with round boss, and inside is provided with the swivel plate that links to each other by hinge; Described ruler has an end to become pointed, and blade is provided with chute and circular port; Described fixator is circular, and there is circular port in central authorities, is placed in the swivel plate of protractor and in the chute of blade; Described pencil stub is installed in the circular port of fixator.
In Fig. 1, the second example shown in Figure 2, swivel plate is provided with chute, links to each other with round boss by hinge, can rotate around round boss; Circular port on the ruler matches with round boss, and use capable of being combined is detachably used again separately.
In Fig. 1, the 3rd example shown in Figure 2, the protractor initial point is located at the center of round boss, and the most advanced and sophisticated center of the nib center of pencil stub, circular protrusions platform center and ruler is in a straight line all the time; All face the center of circular protrusions platform the zero point of protractor high scale chi and ruler.
When using the utility model, the circle of picture or circular arc hour can directly be drawn with protractor, regulate the distance that fixator in the swivel plate chute is chosen mapping, rotate around round boss and choose the mapping angle; When the circle of drawing or circular arc are large, ruler is enclosed within on the protractor, regulate fixator on the ruler and choose and make map distance, utilize the tip of ruler to choose the angle of mapping around round boss again.
Claims (3)
1. Combined compasses, it is characterized in that: it is made of protractor, ruler, fixator, pencil stub; The protractor lower end is provided with rule, and top is provided with round boss, and inside is provided with the swivel plate that links to each other by hinge; Ruler has an end to become pointed, and blade is provided with chute and circular port; Fixator is circular, and there is circular port in central authorities, is placed in the swivel plate of protractor and in the chute of blade; Pencil stub is installed in the circular port of fixator.
2. Combined compasses according to claim 1, it is characterized in that: swivel plate is provided with chute, links to each other with round boss by hinge.
3. Combined compasses according to claim 1, it is characterized in that: the protractor initial point is located at the center of round boss, and the most advanced and sophisticated center of the nib center of pencil stub, circular protrusions platform center and ruler is in a straight line all the time; All face the center of circular protrusions platform the zero point of protractor high scale chi and ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320194985 CN203246224U (en) | 2013-04-17 | 2013-04-17 | Combined compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320194985 CN203246224U (en) | 2013-04-17 | 2013-04-17 | Combined compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203246224U true CN203246224U (en) | 2013-10-23 |
Family
ID=49372681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320194985 Expired - Fee Related CN203246224U (en) | 2013-04-17 | 2013-04-17 | Combined compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203246224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2551549A (en) * | 2016-06-22 | 2017-12-27 | Coates-Evelyn Denham | A safety geometry school set |
-
2013
- 2013-04-17 CN CN 201320194985 patent/CN203246224U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2551549A (en) * | 2016-06-22 | 2017-12-27 | Coates-Evelyn Denham | A safety geometry school set |
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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: 20131023 Termination date: 20140417 |