CN203004804U - Protractor convenient to use - Google Patents

Protractor convenient to use Download PDF

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Publication number
CN203004804U
CN203004804U CN 201220706910 CN201220706910U CN203004804U CN 203004804 U CN203004804 U CN 203004804U CN 201220706910 CN201220706910 CN 201220706910 CN 201220706910 U CN201220706910 U CN 201220706910U CN 203004804 U CN203004804 U CN 203004804U
Authority
CN
China
Prior art keywords
protractor
pointer
protractor body
convenient
angle
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
CN 201220706910
Other languages
Chinese (zh)
Inventor
刘跃群
Original Assignee
刘跃群
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 刘跃群 filed Critical 刘跃群
Priority to CN 201220706910 priority Critical patent/CN203004804U/en
Application granted granted Critical
Publication of CN203004804U publication Critical patent/CN203004804U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a protractor convenient to use and belongs to stationery. The protractor mainly solves the problem that traditional protractors are inconvenient to use. The protractor comprises a protractor body, wherein the protractor body is in a round structure, two symmetrical half-round through-holes are arranged on the surface of the protractor body, concave scale lines and number marks are arranged on the external circle, a pointer which is connected with a pin roll is arranged at the circle center position of the protractor body, the pointer is in a flat shape, the length of the pointer is larger than the radius of the protractor body, and a gap is arranged on the pointer along the radial direction of the protractor body. The protractor has the advantages of being capable of facilitating reading of number values and drawing of angle lines and wide in angle drawing range.

Description

A kind of convenient protractor that uses
Technical field
The utility model relates to a kind of stationery, is specifically a kind of convenient protractor that uses.
Background technology
Existing semicircle protractor can arbitrarily be drawn angle, measuring angle, picture vertical line, parallel lines, survey gradient, perpendicularity, levelness, can be used as stationery, teaching aid and instrument uses, but traditional protractor is because measurement category is little, often need to use ruler could determine angular dimension and graphing as extending the limit, make troubles for user's work, study.
The utility model content
The purpose of this utility model is to provide a kind of convenient protractor that uses, and this protractor has and facilitates reading numerical values, conveniently draws angle line and draw the large function of angular region.
The technical scheme in the invention for solving the technical problem is: a kind of convenient protractor that uses, its structure comprises the protractor body, it is characterized in that, described protractor body is circular configuration, its surface is provided with the semicircle penetrating hole of two symmetries, and the outer ring is provided with graduation mark and the figure denote of recessed formula, is provided with the pointer of bearing pin connection at the circle centre position of protractor body, described pointer is flat, and length is greater than the radius of protractor body; Described pointer stitches along the bar that radially is provided with of protractor body.
During use, take measurement of an angle by the rotating pointer position, after pointer position is determined, can carry out setting-out in stitching by the bar along pointer from middle the hollow parts of protractor, thereby complete smoothly Plot Work.
The beneficial effects of the utility model are:
The utility model is simple in structure, uses safety, convenient, need not by other instrument, and time saving and energy saving, volume is little, does not take up room, and is convenient to deposit and carry.
Because the protractor body is circular configuration, thereby enlarged measurement category.
Because radially the be provided with bar of pointer along the protractor body stitches, paintbrush is positioned in the bar seam, and angle line is more easily alignd with graduation mark, and setting-out is convenient and accurate.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1 protractor body, 2 bearing pins, 3 pointers, 31 seams.
The specific embodiment
As shown in Figure 1.A kind of convenient protractor that uses, its structure comprises protractor body 1, described protractor body 1 circle, the outer ring is provided with recessed formula graduation mark and figure denote, is provided with the pointer 3 of bearing pin 2 connections at the circle centre position of protractor body 1.Described pointer 3 is flat, and length is greater than the radius of protractor body 1.Described pointer 3 stitches 31 along the bar that radially is provided with of protractor body.
During use, take measurement of an angle by rotating pointer 3 positions, after pointer 3 location positionings, can be from the middle hollow parts of protractor 1 along carrying out setting-out in the bar seam of pointer 31, thus complete smoothly Plot Work; The utility model is simple in structure, uses safety, convenient, need not by other instrument, and time saving and energy saving, volume is little, does not take up room, and is convenient to deposit and carry.

Claims (1)

1. one kind facilitates the protractor that uses, its structure comprises the protractor body, it is characterized in that, described protractor body is circular configuration, its surface is provided with the semicircle penetrating hole of two symmetries, and the outer ring is provided with graduation mark and the figure denote of recessed formula, is provided with the pointer of bearing pin connection at the circle centre position of protractor body, described pointer is flat, and length is greater than the radius of protractor body; Described pointer stitches along the bar that radially is provided with of protractor body.
CN 201220706910 2012-12-19 2012-12-19 Protractor convenient to use Expired - Fee Related CN203004804U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220706910 CN203004804U (en) 2012-12-19 2012-12-19 Protractor convenient to use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220706910 CN203004804U (en) 2012-12-19 2012-12-19 Protractor convenient to use

Publications (1)

Publication Number Publication Date
CN203004804U true CN203004804U (en) 2013-06-19

Family

ID=48596429

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220706910 Expired - Fee Related CN203004804U (en) 2012-12-19 2012-12-19 Protractor convenient to use

Country Status (1)

Country Link
CN (1) CN203004804U (en)

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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: 20130619

Termination date: 20131219