CN206430648U - A kind of shearing-type protractor - Google Patents
A kind of shearing-type protractor Download PDFInfo
- Publication number
- CN206430648U CN206430648U CN201621458414.XU CN201621458414U CN206430648U CN 206430648 U CN206430648 U CN 206430648U CN 201621458414 U CN201621458414 U CN 201621458414U CN 206430648 U CN206430648 U CN 206430648U
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- China
- Prior art keywords
- circular plate
- semi
- axis
- circular
- axis hole
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Abstract
The utility model is related to a kind of shearing-type protractor, including a semicircular Circular Plate and a semi-circular plate, Circular Plate includes the straight panel section of arc section and circular arc pars infrasegmentalis, and the center of straight panel section is provided with a groove, first axis hole, home position of first axis hole in Circular Plate are set on groove；The diameter of semi-circular plate is less than the interior circular diameter of Circular Plate, the straight flange center of semi-circular plate is provided with a thin lug, second axis hole is set on thin lug, home position of second axis hole in semi-circular plate, Circular Plate and semi-circular plate are hinged by the tensile axis through two axis holes, and semi-circular plate can be embedded in Circular Plate, pass through the stretching of tensile axis, semi-circular plate can depart from Circular Plate, be rotated outside Circular Plate.The utility model is interesting using process, and application method is simple, and it is accurate that angle is painted in angle measurement；Meanwhile, many ABCs on angle are combined during use of the present utility model, more than such as angular dimension conversion process, angled complimentary are mutual, vertical angles it is equal, have good teaching efficiency.
Description
Technical field
The utility model is related to technical field of stationery, and in particular to a kind of shearing-type protractor.
Background technology
Traditional protractor first has to be directed at angular vertex to be measured, a side of angle measurement when measuring the number of degrees at different angles
Overlapped with the HRL of protractor, then read the angle value corresponding to another side, alignment procedures trouble and measurement process
It is dull.
Meanwhile, traditional protractor first has to determine angular vertex position, then on demand during different angles are drawn
Determined in angular readings and mark required angle, then line draws angle, because angle will be determined by vision and use pen mark
Show, be also easy to produce very much error, and speed is slow.
The content of the invention
The utility model provides a kind of shearing-type protractor, can accurately and rapidly pass through the rotation of semi-circular plate and Circular Plate
Coordinate and determine angle, direct angulation draws angle, extremely easy to use.
In order to solve the above problems, the technical solution of the utility model is：
Outside a kind of shearing-type protractor, including a semicircular Circular Plate and a semi-circular plate, Circular Plate and semi-circular plate
Circle position is provided with angular dimension line, and Circular Plate includes the straight panel section of arc section and circular arc pars infrasegmentalis, the centre bit of straight panel section
Install to be equipped with a groove, groove and the first axis hole is set, home position of first axis hole in Circular Plate；Described semi-circular plate
Diameter is less than the interior circular diameter of Circular Plate, and the straight flange center of semi-circular plate, which is provided with a thin lug, thin lug, sets second
Axis hole, the second axis hole is in the home position of semi-circular plate, and Circular Plate and semi-circular plate be hinged by the tensile axis through two axis holes, and half
Plectane can be embedded in Circular Plate, by the stretching of tensile axis, and semi-circular plate can depart from Circular Plate, rotated outside Circular Plate.
Described tensile axis includes upper end, lower end and stretching connecting rod, and upper end stretches out thin tab outer surface, lower end
Head is fixed in groove, and stretching connecting rod is a secondary drawing bar.
Beneficial effects of the present invention：
1. the utility model is by semi-circular plate and the rotatable engagement of Circular Plate, very directly perceived, accurately it can measure and paint very
Angle processed, it is not necessary to punctuate line, draws angle and settles at one go, save the time of drafting；
2. the utility model is interesting using process, application method is simple, meanwhile, many passes are combined in use
ABC in angle, such as angular dimension conversion process, angled complimentary, vertical angles are equal, there is good teaching efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the utility model when being not switched on；
Fig. 2 is Fig. 1 upward view；
Fig. 3 is use state schematic diagram of the present utility model；
The upward view that Fig. 4 is Fig. 3；
Fig. 5 is the structural representation of the utility model Circular Plate；
Fig. 6 is the structural representation of the utility model semi-circular plate；
Fig. 7 is the structural representation of the utility model tensile axis；
In figure, 1- Circular Plates, 2- semi-circular plates, 3- arc sections, 4- straight panels section, the axis holes of 5- first, the axis holes of 6- second, 7- stretchings
Axle, 8- upper ends, 9- lower ends, 10- stretching connecting rods.
Embodiment
The utility model is further detailed below in conjunction with the accompanying drawings, referring to a kind of scissors angulation shown in Fig. 1-7
The cylindrical position of device, including a semicircular Circular Plate 1 and a semi-circular plate 2, Circular Plate 1 and semi-circular plate 2 is provided with angle
Marking line is spent, Circular Plate 1 includes the straight panel section 4 of arc section and the bottom of arc section 3, and the center of straight panel section 4 is provided with one
First axis hole 5, home position of first axis hole 5 in Circular Plate 1 are set on groove, groove；The diameter of described semi-circular plate 2 is less than
The interior circular diameter of Circular Plate 1, the straight flange center of semi-circular plate 2, which is provided with a thin lug, thin lug, sets the second axis hole 6,
Second axis hole 6 is in the home position of semi-circular plate 2, and Circular Plate 1 and semi-circular plate 2 be hinged by the tensile axis 7 through two axis holes, and half
Plectane 2 can be embedded in Circular Plate 1, by the stretching of tensile axis 7, and semi-circular plate 2 can depart from Circular Plate 1, in the outward turning of Circular Plate 1
Turn.
Tensile axis 7 includes upper end 8, lower end 9 and stretching connecting rod 10, and upper end 8 stretches out thin tab outer surface, is used for
Stretching, lower end 9, which is fixed in groove, not to be stretched out outside Circular Plate 7, it is ensured that Circular Plate 1 can be laid flat in paper during measurement, and stretching connects
Bar 10 is a secondary drawing bar.Usually, semi-circular plate 2 can be embedded in Circular Plate 1, and pressing tensile axis 7 is locked, is convenient for carrying；
Use process of the present utility model is described below：
In use, by the stretching of tensile axis 7, semi-circular plate 2 can depart from Circular Plate 1 and in the outer rotation of Circular Plate 1, realize not
With the measurement and drafting of angle.The utility model, can be very directly perceived, very accurate by semi-circular plate 2 and the rotatable engagement of Circular Plate 1
Measurement and draw angle, it is not necessary to punctuate line, draw angle settle at one go, save the time of drafting；Reference picture 3, annulus
Plate 1 and semi-circular plate 2 therein is arranged in rotary movement, 4 bottoms of straight panel section that the base of semi-circular plate 2 can be with Circular Plate 1
While into angular measurement or drafting, meanwhile, the top margin of the base of semi-circular plate 2 and the straight panel section 4 of Circular Plate 1 into angular measurement or can also be painted
System.The utility model is interesting using process, and application method is simple, and it is accurate that angle is painted in angle measurement；Meanwhile, used of the present utility model
Many ABCs on angle are combined in journey, more than such as angular dimension conversion process, angled complimentary are mutual, vertical angles it is equal, have
Good teaching efficiency.
Content of the present utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
Type specification and any equivalent conversion taken technical solutions of the utility model, are claim institute of the present utility model
Cover.
Claims (2)
1. a kind of shearing-type protractor, it is characterised in that：Including a semicircular Circular Plate（1）With a semi-circular plate（2）, annulus
Plate（1）And semi-circular plate（2）Cylindrical position be provided with angular dimension line, Circular Plate（1）Including arc section and arc section（3）Under
The straight panel section in portion（4）, straight panel section（4）Center be provided with a groove, groove the first axis hole be set（5）, first axle
Hole（5）In Circular Plate（1）Home position；Described semi-circular plate（2）Diameter be less than Circular Plate（1）Interior circular diameter, semicircle
Plate（2）Straight flange center be provided with a thin lug, thin lug the second axis hole be set（6）, the second axis hole（6）In semi-circular plate
（2）Home position, Circular Plate（1）And semi-circular plate（2）Pass through the tensile axis through two axis holes（7）It is hinged, semi-circular plate（2）Can
It is embedded in Circular Plate（1）It is interior, pass through tensile axis（7）Stretching, semi-circular plate（2）Circular Plate can be departed from（1）, in Circular Plate（1）Outside
Rotation.
2. shearing-type protractor according to claim 1, it is characterised in that：Described tensile axis（7）Including upper end（8）、
Lower end（9）With stretching connecting rod（10）, upper end（8）Stretch out thin tab outer surface, lower end（9）It is fixed in groove, stretches
Connecting rod（10）For a secondary drawing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621458414.XU CN206430648U (en) | 2016-12-29 | 2016-12-29 | A kind of shearing-type protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621458414.XU CN206430648U (en) | 2016-12-29 | 2016-12-29 | A kind of shearing-type protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206430648U true CN206430648U (en) | 2017-08-22 |
Family
ID=59584875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621458414.XU Expired - Fee Related CN206430648U (en) | 2016-12-29 | 2016-12-29 | A kind of shearing-type protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206430648U (en) |
-
2016
- 2016-12-29 CN CN201621458414.XU patent/CN206430648U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20211229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |