CN201761223U - Angle protractor - Google Patents

Angle protractor Download PDF

Info

Publication number
CN201761223U
CN201761223U CN2010202068487U CN201020206848U CN201761223U CN 201761223 U CN201761223 U CN 201761223U CN 2010202068487 U CN2010202068487 U CN 2010202068487U CN 201020206848 U CN201020206848 U CN 201020206848U CN 201761223 U CN201761223 U CN 201761223U
Authority
CN
China
Prior art keywords
angle
scale
protractor
fixed
bevel protractor
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
Application number
CN2010202068487U
Other languages
Chinese (zh)
Inventor
张继
Original Assignee
张继
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 张继 filed Critical 张继
Priority to CN2010202068487U priority Critical patent/CN201761223U/en
Application granted granted Critical
Publication of CN201761223U publication Critical patent/CN201761223U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

An angle protractor belongs to the stationery and mainly solves the problem that when a draftsman draws angles, multiple drawing tools are required, and the use is inconvenient. The angle protractor comprises an angle scale, a fixed scale and a movable scale, wherein the angle scale is semicircular; angle indexes are arranged along the semicircular arc of the angle scale; the inner side edge of the angle scale is a saw-toothed edge; one end of the fixed scale is fixed at the 0 degree of the angle scale, and the other end is arranged at the circular center of the angle scale and is provided with a rotating shaft; one end of the movable scale is connected with the fixed scale through the rotating shaft, and the other end is the free end; the movable scale is provided with an elastic jaw; and the elastic jaw is embedded in the saw-toothed gap. When a pattern with a specific angle is drawn, the angle protractor is adjusted to the required angle, the movable scale is automatically locked, the included angle of the movable scale and the fixed scale is the required angle of the pattern, the drawing is convenient, and the operation is simple.

Description

A kind of protractor
Technical field
The utility model relates to a kind of stationery, specifically a kind of protractor.
Background technology
Often need to draw the pattern of special angle in the Geometric figure drawing, inconvenient but existing protractor is drawn, need multiple drawing instrument to be used just and can to finish.
The utility model content
The purpose of this utility model is to provide a kind of protractor, can draw the easily and fast angle of required angle of this protractor.
The technical scheme in the invention for solving the technical problem is: a kind of protractor, it is characterized in that, and comprise bevel protractor, fixed ruler and adjustable rule, described bevel protractor is the semicircle arcuation, is provided with angle index along the semi arch of bevel protractor, and the bevel protractor inner side edge is a toothed edge; Described fixed ruler one end is fixed on 0 ° of scale position of bevel protractor, and the other end is positioned at the bevel protractor home position and is provided with rotating shaft; Described adjustable rule one end is connected by rotating shaft with fixed ruler, and the other end is a free end, and adjustable rule is provided with elastic card claw, and elastic card claw is embedded in the sawtooth slit.
The beneficial effects of the utility model are: when drawing the special angle pattern, the utility model is adjusted to the angle that needs, adjustable rule automatically locks.Angle between adjustable rule and the fixed ruler is required pattern, and it is convenient, simple to operate to draw.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1 fixed ruler, 2 rotating shafts, 3 adjustable rules, 4 elastic card claws, 5 toothed edges, 6 bevel protractors.
The specific embodiment
As shown in Figure 1.A kind of protractor comprises bevel protractor 6, fixed ruler 1 and adjustable rule 3, and described bevel protractor 6 is the semicircle arcuation, is provided with angle index along the semi arch of bevel protractor 6, bevel protractor 6 inner side edges are toothed edge 5; Described fixed ruler 1 one ends are fixed on 0 ° of scale position of bevel protractor, and the other end is positioned at bevel protractor 6 home positions and is provided with rotating shaft 2; Described adjustable rule 3 one ends are connected by rotating shaft 2 with fixed ruler 1, and the other end is a free end, and adjustable rule 3 is provided with elastic card claw 4, and elastic card claw 4 is embedded in the sawtooth slit.
During use, corresponding angle index place on the bevel protractor 6 is adjusted in adjustable rule 32 rotations around the shaft, and adjustable rule 3 automatically locked by elastic card claw 4 and cooperating of toothed edge 5, and the angle between adjustable rule 3 and the fixed ruler 1 is required pattern, it is convenient, simple to operate to draw.

Claims (1)

1. a protractor is characterized in that, comprises bevel protractor, and fixed ruler and adjustable rule, described bevel protractor are the semicircle arcuation, is provided with angle index along the semi arch of bevel protractor, and the bevel protractor inner side edge is a toothed edge; Described fixed ruler one end is fixed on 0 ° of scale position of bevel protractor, and the other end is positioned at the bevel protractor home position and is provided with rotating shaft; Described adjustable rule one end is connected by rotating shaft with fixed ruler, and the other end is a free end, and adjustable rule is provided with elastic card claw, and elastic card claw is embedded in the sawtooth slit.
CN2010202068487U 2010-05-28 2010-05-28 Angle protractor Expired - Fee Related CN201761223U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202068487U CN201761223U (en) 2010-05-28 2010-05-28 Angle protractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202068487U CN201761223U (en) 2010-05-28 2010-05-28 Angle protractor

Publications (1)

Publication Number Publication Date
CN201761223U true CN201761223U (en) 2011-03-16

Family

ID=43713829

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202068487U Expired - Fee Related CN201761223U (en) 2010-05-28 2010-05-28 Angle protractor

Country Status (1)

Country Link
CN (1) CN201761223U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101881161B1 (en) * 2017-07-20 2018-07-23 (주)에스비 Angle meter
CN110558732A (en) * 2019-08-06 2019-12-13 湖南第一师范学院 Portable outdoor environment design drawing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101881161B1 (en) * 2017-07-20 2018-07-23 (주)에스비 Angle meter
CN110558732A (en) * 2019-08-06 2019-12-13 湖南第一师范学院 Portable outdoor environment design drawing device

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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: 20110316

Termination date: 20110528