CN2361487Y - Multi-purpose compasses - Google Patents
Multi-purpose compasses Download PDFInfo
- Publication number
- CN2361487Y CN2361487Y CN 99203310 CN99203310U CN2361487Y CN 2361487 Y CN2361487 Y CN 2361487Y CN 99203310 CN99203310 CN 99203310 CN 99203310 U CN99203310 U CN 99203310U CN 2361487 Y CN2361487 Y CN 2361487Y
- Authority
- CN
- China
- Prior art keywords
- rule
- compass
- compasses
- utility
- model
- 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 multi-purpose compasses, which is composed of compass feet, a compass head and a measuring scale which is divided to three sections which are respectively sheathed on the compass head and the compass feet, and a longer straightedge can be formed. Small rulers which can be stretched out are arranged in the compass feet, and a protractor and a set square can be formed. The straightedge of the utility model is longer, and a ruler, a pair of compasses, the protractor and the set square are gathered into an integral body. Use is convenient, and the utility model is suited to be used by scientific technical personnel and students for drawing.
Description
The utility model relates to a kind of drawing appliance.
At present used Napier's compasses are generally only for chi, protractor, compasses integrate, and are limited to compass foot length, so chi is general just very short.
The Napier's compasses that the utility model purpose just is to provide a kind of ruler length length and integrates chi, rule, protractor, set square.
The utility model purpose is realized by following scheme: the utility model is made up of compass foot, compasses head, rule, rule is divided into three sections and is enclosed within respectively on compasses head and two compass foots, the rule that is enclosed within on the compass foot can move around along compass foot, being provided with spring in the rule strains rule, two compass foot expansibles to 180 °, rule form one long ruler.Be provided with the band angle that can cross out and the little chi and the angular observation hole of length scale in the rule, two little chis formed certain angles and can be used as protractor and set square usefulness when two compass foots were bonded to two little chis and collide; Rule rubs mutually when preventing two compass foot opening and closing, is provided with jump ring in rule, is blocked by jump ring when rule is pulled down, and rule can not rub mutually, presses lower circlip, and rule promptly is tightened up.
Describe in detail below in conjunction with embodiment and accompanying drawing:
Fig. 1 is the utility model structural representation;
Fig. 2 is a rule internal structure schematic diagram;
Fig. 3 is the compass foot structural representation;
Fig. 4 is little chi structural representation;
Fig. 5 is the jump ring structural representation.
The utility model is made up of compass foot (4), compasses head (5), rule (1) as shown in Figure 1, rule (1) is divided into three sections and is enclosed within respectively on compasses head (5) and two compass foots (4), rule (1) is divided into two up and down, fixing by screw (3), the rule that is enclosed within on the compass foot (4) can move around along compass foot (4), be provided with the band angle that can cross out and the little chi (6) of length scale in the rule (1), with two compass foots (4) be bonded to two little chis (6) when colliding two little chis (6) form certain angle and can be used as protractor and set square usefulness; Be provided with jump ring (2) in rule (1), rule (1) is blocked by jump ring (2) when pulling down, rule (1) can not rub mutually, presses lower circlip (2), and rule (1) promptly is tightened up;
As shown in Figure 2, be provided with in the rule with the corresponding groove of compass foot (4) (11), with the corresponding groove of jump ring (2) (7), angular observation hole (8), fixing spring (10).Rotary screw (9) can stretch out little chi (6);
As shown in Figure 3, compass foot (4) with hook is provided with and the corresponding bayonet socket of jump ring (2) (12);
As shown in Figure 4, be carved with angle index (13) on the little chi (6);
As shown in Figure 5, under the jump ring (2) spring (14) is housed.
Ruler of the present utility model is longer, and integrates chi, rule, protractor, set square, and is easy to use, is suitable for scientific and technical personnel and the student usefulness of drawing.
Claims (3)
1, a kind of Napier's compasses, form by compass foot, compasses head, rule, rule is divided into three sections and is enclosed within respectively on compasses head and two compass foots, be with the rule that can move around along compass foot on the compass foot, be enclosed within and be provided with spring in the rule on the compass foot rule is strained, two compass foots open 180 ° and form long rulers.
2, Napier's compasses as claimed in claim 1 is characterized in that: the little chi and the angular observation hole that are provided with the band scale that can cross out in the rule.
3, Napier's compasses as claimed in claim 1 or 2 is characterized in that: be provided with jump ring in rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99203310 CN2361487Y (en) | 1999-02-02 | 1999-02-02 | Multi-purpose compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99203310 CN2361487Y (en) | 1999-02-02 | 1999-02-02 | Multi-purpose compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2361487Y true CN2361487Y (en) | 2000-02-02 |
Family
ID=33998468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99203310 Expired - Fee Related CN2361487Y (en) | 1999-02-02 | 1999-02-02 | Multi-purpose compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2361487Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760449A (en) * | 2015-04-21 | 2015-07-08 | 上海理工大学 | Compasses |
-
1999
- 1999-02-02 CN CN 99203310 patent/CN2361487Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760449A (en) * | 2015-04-21 | 2015-07-08 | 上海理工大学 | Compasses |
| CN104760449B (en) * | 2015-04-21 | 2016-09-28 | 上海理工大学 | Compasses |
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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 |